FLOOR DRAIN FOR POULTRY HOUSES

Abstract

 The disclosure relates to an airtight floor drain (1) for poultry houses, comprising a plug (10), a drain shell (30) with an inlet end having an inlet rim (43) and a protective cover (20). The drain shell may be adapted to be mounted on an external sewer pipe and configured for being cast into a concrete floor with the inlet rim and/or the protective cover substantially aligned with a surface of the concrete floor.

Description

Field of disclosure

[0001] The disclosure relates to an airtight floor drain for poultry houses comprising a plug, a drain shell with an inlet end having an inlet rim and a protective cover. The drain shell may be adapted to be mounted onto an external sewer pipe and configured for being cast into a concrete floor with the inlet rim and/or the protective cover substantially aligned with a surface of the concrete floor.

Background

[0002] The hygienic requirements for livestock breeding is generally increasing. Especially for poultry breeding the chicken houses or barns are in many countries subject to a high level of hygienic standards including restricted personal access and hindering access of wildlife from accessing the houses to avoid spreading of viruses and bacteria. The hygienic standards also includes regular cleaning of the houses including removal of feed waste, litter, faeces etc. Drains and sewers are in general perfect breeding grounds for bacteria to spread into the houses. However, the regular cleaning of the houses demands drainage for efficiently cleaning.

[0003] Today, the floor drains often comprises in-situ cast solutions implemented in the concrete floors, which often results in drains not working optimally. Furthermore, such drain solutions may be complicated and time-consuming to implement.

Objective of the disclosure

[0004] One objective of this disclosure is to overcome one or more of the before mentioned shortcomings of the prior art.

[0005] A further objective is to achieve a floor drain that meets the requirement for a uniform and finished product that can very easily be installed/embedded in concrete floors when building new chicken houses or renovating existing houses.

[0006] Yet another objective may be to achieve a robust floor drain with a hygienic design.

[0007] Furthermore, the objective may be to obtain a floor drain generally usable in barns/stables/houses for livestock breeding.

Description of the disclosure

[0008] Disclosed herein is a floor drain for poultry houses, comprising a plug and a drain shell. The drain shell may have an interior, an exterior, an inlet end with an inlet opening and an inlet rim, and an outlet end with an outlet opening. The inlet opening being larger than the outlet opening.

[0009] The outlet end may be cylindrically pipe shaped and adapted to be mounted on an external sewer pipe.

[0010] The floor drain may further comprise a protective cover with a top face and a bottom face.

[0011] The drain shell may comprise an inner recess arranged on the interior. The inner recess may be configured for supporting the protective cover.

[0012] The protective cover may be adapted to be arranged within the drain shell on the inner recess with the top face of the protective cover substantially aligned with the inlet rim.

[0013] The protective cover may be configured to cover and protect the interior of the drain shell.

[0014] The plug may be adapted to be arranged within the drain shell between the inner recess and the outlet opening and arranged at least partly within the outlet end to provide an airtight seal between the interior of the drain shell and the plug.

[0015] The drain shell comprises an outer collar arranged on the exterior. The outer collar being adapted for casting into the concrete floor with the inlet rim and/or the top face of the protective cover substantially aligned with a surface of the concrete floor.

[0016] The floor drain as defined herein is a system or fixture that provides an exit-point for waste water. The floor drain as defined herein comprises the three elements: drain shell, protective cover and plug.

[0017] The protective cover may be a removable protective cover configured to be removed from and placed into the drain shell before and after drainage use.

[0018] The plug may be a removable plug configured to be removed from and placed into the drain shell for before and after drainage use.

[0019] One effect of the outer collar arranged on the exterior of the drain shell may be that the drain shell can be cast into a concrete floor at a correct depth. In the process of laying the concrete floor, concrete may be poured onto the outer collar, such that the drain shell is hindered from floating on the concrete. Alternatively, the drain shell may be adjusted during the floor casting e.g. by pushing the drain shell into the concrete until concrete floats onto the outer collar such that the drain shell is weighed down by the weight of the concrete.

[0020] The floor drain may be considered a complete floor drain for installation in floors for new construction or renovation of, among others, chicken houses. The floor drain is ready for embedding in concrete floors and may present a simple and uniform installation when laying floors.

[0021] The floor drain may present a pre-cast unit to be mounted directly into an external sewer pipe established in or below the flooring for leading washing water to an external front tank or slurry channel.

[0022] The floor drain can be considered to present a uniform and finished product that can very easily be installed/embedded in concrete floors when building new chicken houses. This may be seen in contrast to existing in-situ cast solutions, which often means that the drain does not work optimally.

[0023] One effect of the floor drain is that an airtight floor drain is achieved with the advantage of preventing penetration of bacteria into the chicken house.

[0024] A further effect of the floor drain is that the protective cover establishes an outer surface aligned with the floor surface. The protective cover may have multiple functionalities. It may act to protect the drain shell and the airtight part from floor-operated heavy machinery. It may establish a part of the floor to prevent fixed drain holes to be considered by the farmers and other workers working in the premises.

[0025] The protective cover may be a rigid and/or solid cover that can withstand heavy traffic such as loaders.

[0026] One advantage of the floor drain is that it prevents bacteria from entering the chicken houses, while achieving a floor drain that, when you remove the protective cover, may have a drain shell with a large volume for collecting washing/rinsing water.

[0027] The disclosed floor drain may have the following effects or advantages:

• Suitable for embedding into concrete floors.
• When the livestock e.g. poultry are in the house, the airtight floor drain ensures that no bacteria can enter from the drain section.
• When litter has been removed from the barn/house/stable, the protective cover and the plug is removed from the floor drain, and the water and dirt from washing the premises can be drained into the drain. After cleaning the premises, the plug and protective cover may be arranged into the drain shell again, to achieve that the sealed drain, keeping bacteria from the manure channel out of the chicken house.

[0028] In one aspect, the protective cover may be disk shaped. The cover may be made of an impact resistant materiel such that a protective cover able to withstand traffic from loaders are achieved.

[0029] In one aspect the cylindrically pipe shaped outlet end may be oriented such that a vertically mount into a socket of an external sewer pipe is achieved. In another aspect, the cylindrically pipe shaped outlet end may be oriented such that an inclined mount into a socket of an external sewer pipe is achieved.

[0030] In one embodiment of the floor drain, a part of the interior of the drain shell arranged between the inner recess and the outlet end may be conically shaped.

[0031] One effect of a conically shaped interior may be achieve a flush interior for optimal flow and drainage. The conical shape may also be advantageous in a production of the drain shell e.g. for injection moulding, die casting, thermoforming, moulding or other similar production methods.

[0032] The conical shape may furthermore achieve for a drain shell with a large volume to collect washing water when cleaning the premises.

[0033] In one embodiment of the floor drain, the inlet end may be cylindrically pipe shaped.

[0034] For protecting the drain shell and plug, the floor drain may be closed of with the protective cover. A cylindrically pipe shape may accommodate a circular protective cover. The circular form may be advantageous for easy mounting of the cover into the drain shell as the orientation is irrelevant, sharp edges and corners may be reduced which lowers the risk of biofilm build-up and bacteria colonies, and a more uniform flow into the drain may be achieved.

[0035] The inner recess may likewise be circular shaped, which may be beneficial in regard to achieving a more evenly distributed support of the protective cover and a more evenly distribution of the force impacted on the protective cover by loads from any wheel loader or other loading machine used on the premises.

[0036] In one embodiment of the floor drain, the drain shell, the plug, the protective cover or any combination hereof is made of polyethylene.

[0037] Polyethylene (PE) is available in a variety of grades and formulations to suit different needs. In general, polyethylene offer excellent chemical and impact resistance, low coefficient of friction, very low moisture absorption, are easily processed and may offer good fatigue and wear resistance.

[0038] These properties of PE supports the application of the floor drain with the already described effects and benefits for achieving a hygienic and robust floor drain. In particular the properties of PE are advantages for the floor drain in view of the wet application, chemical exposure, force impacts while still achieving a hygienic and durable unit.

[0039] In one embodiment of the floor drain, the plug comprises an EPDM O-ring. The EPDM O-ring may be any standard O-ring or specially fabricated O-ring. The dimensions of the O-ring should be fitted to the actual size of plug and the drain shell such that an airtight seal achieved. The O-ring could for example have a ring thickness of 4mm, 6mm, 8mm, 10mm, 12 mm or anything there in between.

[0040] O-rings made of other elastomers or rubbers may also be used as long as the effect of an airtight seal is achieved.

[0041] In one embodiment of the floor drain, the outlet end is adapted to be mounted in an external sewer drain with an inner pipe diameter in the range from 100mm to 300mm, preferably in the range of 120-200mm even more preferably with an inner pipe diameter of 160mm.

[0042] I.e. the outlet end may be circular shaped with an outer diameter in the range from 100mm to 300mm, preferably in the range from 120mm to 200mm, even more preferably with an outer diameter of 160mm.

[0043] The outlet end may preferable have a size supporting any standards used for plumbing installations. The standard sizes may differ from country to country but also new standards may be introduced. The floor drain may be suitable dimensioned to fit with standard piping.

[0044] One effect of using standard sizes may be that the outlet end may be mounted directly into an external sewer pipe and thus achieve a simple and uniform installation of the floor drain when laying floors.

[0045] In one embodiment of the floor drain, the inlet opening is circular shaped with an opening diameter in the range between 500mm and 600mm, the inner recess extending inwards with a circular shaped recess opening with a diameter in the range of 480mm to 490mm, and the protective cover is disk shaped with an outer diameter being larger that the diameter of the recess opening and smaller than the diameter of the inlet opening.

[0046] In one aspect, the protective cover may have a thickness as measured between top face and bottom face in the range of 20-100mm, preferably in the range of 30-80mm, even more preferably in the range of 40-60mm. A suitable thickness may depend on the size of the opening diameter of the drain shell, the amount of heavy traffic, the material of the protective cover including the cost and the impact strength but also the shape of the protective cover being a hollow or solid disk, amongst other parameters.

[0047] One embodiment could be a disk shaped protective cover with a diameter of 500mm and a thickness of 50mm.

[0048] In another aspect, the outer collar could be designed with an outwards extending shape ending in a circular shape, in a square shape or any shape, which may be considered most practical, economical or suitable for other reasons. I.e. a pentagonal, hexagonal etc. shape may be used with the effect of achieving a suitable collar preventing the drain shell from floating on the concrete. Hence, the outer diameter of the collar should be larger than the inlet opening.

[0049] One embodiment could be a floor drain with a circular inlet opening with an opening diameter of 500mm and an outer collar with an outer diameter of 600mm.

[0050] In one embodiment, the floor drain may comprise a mounting plate with an aperture adapted for housing a piping. The mounting plate may comprise three or more attachment points adapted for attaching three of more adjustable rods. The drain shell may comprise three or more corresponding attachment points adapted for attaching the three or more adjustable rods.

[0051] The adjustable rods may be arrange between the mounting plate and the drain shell. The adjustable rods may be configured for adjusting the position of the drain shell during or after laying the concrete floor or part of the concrete floor wherein the floor drain is to be casted into.

[0052] One effect of the mounting plate may be similar to that of the outer collar. In the process of laying the concrete floor, concrete may be poured onto the mounting plate and the mounting pate being positioned at a given depth and with a weight of the concrete holding the mounting plate in a fixed position. The position of the drain shell may subsequently be adjusted using the adjustable rods, such that an alignment of the inlet rim and/or the protective cover with the floor surface can be obtained.

[0053] Further disclosed herein is the plug of the floor drain in accordance with the preceding description, effects and advantages.

[0054] Further disclosed herein is the drain shell of the floor drain in accordance with the preceding description, effects and advantages.

[0055] Further disclosed herein is the protective cover of the floor drain in accordance with the preceding description, effects and advantages.

[0056] Further disclosed herein is a method of mounting the floor drain. The method comprises an act of casting the drain shell into the concrete when laying a floor. The drain shell is casted into the floor by covering the outer collar with concrete for positioning the drain shell in a suitable height in relation to the floor surface such the inlet rim and/or the protective cover may be substantially aligned with the floor surface.

[0057] Further disclosed herein is a method of mounting the floor drain comprising the mounting plate. The method comprises acts of:

• arranging the mounting plate and a piping to be housed in the aperture in the aperture;
• arranging the outlet end of the drain shell into the piping;
• attaching the adjustable rods at corresponding attachment points in the mounting plate and the drain shell, and
• adjusting the position of the drain shell using the adjustable rods.

[0058] Further disclosed herein is a method of using the mounted floor drain during cleaning of a floor. The method may comprise acts of:

• removing the protective cover and the plug from the drain shell before initiating cleaning, and after cleaning of
• placing the plug in an airtight manner in the interior of the drain shell, and
• placing the protective cover within the drain shell on the inner recess with the top face of the protective cover substantially aligned with the inlet rim and/or the floor and configured to cover and protect the interior of the drain shell in the interior of the drain shell on the inner recess.

The invention may also be described according to the following

[0059] The floor drain is created to prevent bacteria from entering the chicken houses, while having a drain that is very easy to install for new construction or renovation of chicken houses.

[0060] The airtight part of the drain is protected by a solid cover that can withstand traffic of loaders. The floor drain is made of PE material, so that the floor drain cannot rust or corrode away. PE sheets are very slippery, which is why this makes cleaning very easy. The complete invention consists of three parts:

1. The floor drain itself

2. Airtight plug

3. Protective cover.

[0061] The floor drain is mounted directly on the drain pipe that leads washing water to the front tank or slurry channel.

[0062] The floor drain is produced in the plastic material Polyethylene. The drain pipe has a dimension of Ø16Omm, so it can be mounted directly into the drain pipe. An edge/collar has been made on the drain, which means that the floor drain can be cast into the concrete floor. The inside diameter is 480mm. The complete floor drain consists of three parts. Drain shell, inner plug and protective cover.

[0063] The floor drain is a pre-cast unit that can be mounted directly on the drain pipes in i.e. chicken houses.

[0064] The requirement for the floor drain is a product that meets the requirement for a uniform and finished product that can very easily be installed/embedded in concrete floors when building new chicken houses. Until now, in-situ cast solutions have been made, which often means that the drain does not work optimally.

[0065] Airtight floor drain for chicken house. Floor drain in PE:

• Dimension: 0600mm
• Vertical outlet 0160mm
• Mounted in socket on 0160mm sewer pipe.
• Intended for embedding in concrete floors.
• When the chickens are in the house, the airtight floor drain ensures that no bacteria can enter from the drain section.
• The floor drain is closed tightly with a PE-plug fitted with an 8mm EPDM 0-ring.
• As protection of floor drains and plugs, the floor drain is finished with a 500x50mm cover that can withstand loads from any wheel loader or other loading machine for emptying the chicken house, when the chickens have been sent to the slaughterhouse.
• When litter has been removed from the barn, the protective cover is removed and the tight PE-plug is removed, so that water and dirt from washing the barn can be drained into the drain. When the barn has been cleaned, the plug and cover are fitted again, and the drain keeps bacteria from the manure channel out of the chicken house.

[0066] The PE floor drain is a finished floor drain for installation in floors for new construction or renovation of, among others chicken houses. The new thing about the floor drain is that it is airtight and ready for embedding in concrete floors.

• Airtight drain so that the penetration of bacteria into the chicken house is prevented.
• Have a smooth surface, for easy cleaning.
• Simple and uniform installation when laying floors.
• Large volume to collect rinsing water when cleaning barns.
• Impact resistant.
• Withstand traffic from loaders when cleaning the barn.

[0067] The characteristic of the PE-floor drain is that it is airtight and when you remove the cover that protects the drain itself, there is a large volume to collect rinsing water.

Brief description of the drawings

[0068] Various examples are described hereinafter with reference to the figures. Like reference numerals refer to like elements throughout. Like elements will thus, not be described in detail with respect to the description of each figure. It may also be noted, that the figures are only intended to facilitate the description of the examples. They are not intended as an exhaustive description of the claimed invention or as a limitation on the scope of the claimed invention. In addition, an illustrated example needs not have all the aspects or advantages shown. An aspect or an advantage described in conjunction with a particular example is not necessarily limited to that example and can be practiced in any other examples even if not so illustrated, or if not so explicitly described.

Figure 1 illustrates one embodiment of the floor drain without the protective cover.

Figure 2B illustrates a sketch of one embodiment of the floor drain.

Figure 2B illustrates one embodiment of the floor drain mounted on an external sewer pipe.

Figure 3 illustrates one embodiment of the floor drain including the mounting plate.

Detailed description of the disclosure

[0069] 

No	Item
1	floor drain
10	plug
12	O-ring
20	protective cover
22	top face
24	bottom face
30	drain shell
32	interior
34	exterior
36	inner recess
37	recess opening
38	outer collar
40	inlet end
42	inlet opening
43	inlet rim
50	outlet end
52	outlet opening
90	mounting plate
92	aperture
94	attachment points (mounting plate)
96	adjustable rod
98	attachment points (drain shell)

[0070] Exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings. In this regard, the present examples may have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the examples are merely described below, by referring to the figures, to explain aspects. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Expressions such as "at least one of," when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.

[0071] In the drawings, thicknesses of a plurality of layers and areas may be illustrated in an enlarged manner for clarity and ease of description thereof. When a layer, area, element, or plate is referred to as being "on" another layer, area, element, or plate, it may be directly on the other layer, area, element, or plate, or intervening layers, areas, elements, or plates may be present there between. Conversely, when a layer, area, element, or plate is referred to as being "directly on" another layer, area, element, or plate, there are no intervening layers, areas, elements, or plates there between. Further when a layer, area, element, or plate is referred to as being "below" another layer, area, element, or plate, it may be directly below the other layer, area, element, or plate, or intervening layers, areas, elements, or plates may be present there between. Conversely, when a layer, area, element, or plate is referred to as being "directly below" another layer, area, element, or plate, there are no intervening layers, areas, elements, or plates there between.

[0072] The spatially relative terms "lower" or "bottom" and "upper" or "top", "below", "beneath", "less", "above", and the like, may be used herein for ease of description to describe the relationship between one element or component and another element or component as illustrated in the drawings. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, in the case where a device illustrated in the drawings is turned over, elements described as being on the "lower" side of other elements, or "below" or "beneath" another element would then be oriented on "upper" sides of the other elements, or "above" another element. Accordingly, the illustrative term "below" or "beneath" may include both the "lower" and "upper" orientation positions, depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. The exemplary terms "below" or "beneath" can, therefore, encompass both an orientation of above and below, and thus the spatially relative terms may be interpreted differently depending on the orientations described.

[0073] Throughout the specification, when an element is referred to as being "connected" to another element, the element is "directly connected" to the other element, or "electrically connected" to the other element with one or more intervening elements interposed there between.

[0074] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms, including "at least one," unless the content clearly indicates otherwise. "At least one" is not to be construed as limiting "a" or "an." It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

[0075] It will be understood that, although the terms "first," "second," "third," and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Thus, "a first element" discussed below could be termed "a second element" or "a third element," and "a second element" and "a third element" may be termed likewise without departing from the teachings herein.

[0076] "About" or "approximately" as used herein is inclusive of the stated value and means within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art, considering the measurement in question and the error associated with measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations, or within ± 30%, 20%, 10%, 5% of the stated value.

[0077] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this invention pertains. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined in the present specification.

[0078] Exemplary embodiments are described herein with reference to cross section illustrations that are schematic illustrations of idealized examples, wherein like reference numerals refer to like elements throughout the specification. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, examples described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region illustrated or described as flat may have rough and/or nonlinear features. Moreover, sharp angles that are illustrated may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the present claims. Some of the parts, not associated with the description may not be provided in order to specifically describe exemplary examples of the present disclosure.

[0079] Figure 1 illustrates one embodiment of the floor drain without the protective cover. The floor drain is illustrated in a perspective view as seen slightly from below at the outlet end 50 in figure 1A and as seen from above from the inlet end 40 in figure 1B. The floor drain comprises a plug 10 and a drain shell 30.

[0080] The drain shell 30 has an interior 32, an exterior 34, an inlet end 40 with an inlet opening 42 and an inlet rim 43, and an outlet end 50 with an outlet opening 52.

[0081] The outlet end 50 is shaped as a cylindrically pipe, such that it is adapted to be mounted on an external sewer pipe, as illustrated in figure 2B.

[0082] The drain shell 30 comprises an inner recess 36 arranged on the interior 32. The inner recess being configured to support the protective cover (not illustrated). The drain shell 30 comprises an outer collar 38 arranged on the exterior 34. The outer collar being configured for being cast into the floor.

[0083] The plug 10 is arranged in the interior 32 of the drain shell 30 between the inner recess 36 and the outlet opening 52. Here, the plug 10 is illustrated with a top ring attached, which may be used as a handle for removing the plug 10 to open the drain.

[0084] The plug 10 may comprise a seal of a kind to achieve an airtight seal. This could be a fitted O-ring.

[0085] The inlet rim 43 of the upper part of the inlet end 40 may be aligned with the floor surface or slightly countersink to the floor surface, when the floor drain is casted into the concrete floor.

[0086] Figure 2A illustrates a sketch of an embodiment of the floor drain 1 comprising the drain shell 30, the protective cover 20 and the plug 10. The plug is arranged in the cylindrical pipe shaped outlet end 50. The protective cover 20 is arranged in the inlet end 40 of the drain shell 30 onto the inner recess 36. The protective cover 20 comprises a top face 22 and a bottom face 24. The protective cover 20 may be arranged with the top face 22 or part of the top face extending above the inlet rim 43, such that the inlet end 40 of the drain shell 30 do not support any heavy traffic by itself without the support of the floor or the protective cover 20, and hence the inner recess 38.

[0087] The protective cover 20 may be a removable protective cover configured to be removed from and placed into the drain shell 30 before and after drainage use.

[0088] The plug 10 may be a removable plug configured to be removed from and placed into the drain shell 30 for before and after drainage use.

[0089] The plug 10 comprises an O-ring 12 forming an airtight seal between the plug 10 and the drain shell 30. This could be a fitted O-ring. The O-ring 12 may be arranged in other positions on the plug 10.

[0090] Figure 2B illustrated the drain shell 30 with the outlet end arranged in an external sewer pipe.

[0091] Figure 3 illustrates one embodiment of the floor drain comprising the mounting plate 90. The mounting plate 90 comprises an aperture 92 adapted for housing a piping. The piping may be a part of the drain shell 30 as illustrated here, or may alternatively comprise an external pipe such as an external sewer pipe.

[0092] The illustrated mounting plate 90 comprises three attachment points 94. Three adjustable rods 96 are by a first end attached to the mounting plate 90 in the attachment points 94. Furthermore, the drain shell comprises three corresponding attachment points 98. The three adjustable rods 96 are by a second end attached to the drain shell 30 in the attachment points 98.

Claims

1. A floor drain (1) for poultry houses comprising a plug (10) and a drain shell (30) having an interior (32), an exterior (34), an inlet end (40) with an inlet opening (42) and an inlet rim (43), and an outlet end (50) with an outlet opening (52), said inlet opening (42) being larger than the outlet opening (52), said outlet end (50) being cylindrically pipe shaped and adapted to be mounted on an external sewer pipe. wherein the floor drain (1) further comprises a protective cover (20) with a top face (22) and a bottom face (24), and wherein said drain shell (30) comprises an inner recess (36) arranged on the interior (32) and is configured for supporting the protective cover (20),
wherein the protective cover (20) is adapted to be arranged within the drain shell (30) on the inner recess (36) with the top face (22) of the protective cover (20) substantially aligned with the inlet rim (43) and configured to cover and protect the interior (34) of the drain shell (30),
wherein the plug (10) is adapted to be arranged within the drain shell (30) between the inner recess (36) and the outlet opening (52) and at least partly within the outlet end (50) to provide an airtight seal between the interior (32) of the drain shell (30) and the plug (10), and
wherein the drain shell (30) comprises an outer collar (38) arranged on the exterior (34) and adapted to be cast into the concrete floor (22), said floor drain (1) being configured for being cast into a concrete floor with the inlet rim (43) and/or the top face (22) of the protective cover (20) substantially aligned with a surface of the concrete floor.

2. The floor drain (1) according to claim 1, wherein a part of the interior of the drain shell (30) arranged between the inner recess (36) and the outlet end (50) is conically shaped.

3. The floor drain (1) according to any one or more of the preceding claims, wherein the inlet end (40) is cylindrically pipe shaped.

4. The floor drain (1) according to any one or more of the preceding claims, wherein the drain shell (30), the plug (10), the protective cover (20) or any combination hereof is made of polyethylene.

5. The floor drain (1) according to any one or more of the preceding claims, wherein the plug (10) comprises an O-ring, preferably an EPDM O-ring.

6. The floor drain (1) according to any one or more of the preceding claims, wherein the outlet end (50) is circular shaped with an outer diameter in the range from 100mm to 300mm, preferably in the range from 120mm to 200mm, even more preferably with an outer diameter of 160mm.

7. The floor drain (1) according to any one or more of the preceding claims, wherein the inlet opening (42) is circular shaped with an opening diameter in the range between 500mm and 600mm, the inner recess (36) extending inwards with a circular shaped recess opening (37) with a diameter in the range of 480mm to 490mm, and the protective cover (20) is disk shaped with an outer diameter being larger that the diameter of the recess opening and smaller than the diameter of the inlet opening (42)

8. The floor drain (1) according to any one or more of the preceding claims comprising a mounting plate (90) with an aperture (92) adapted for housing a piping and three or more attachment points (94) adapted for attaching three of more adjustable rods (96) and wherein, the drain shell (30) comprises three or more corresponding attachment points (98) adapted for attaching the three or more adjustable rods (96).

9. A method of mounting the floor drain (1) according to any one or more of claims 1-8, comprising an act of casting the drain shell (30) into the concrete when laying a floor.

10. A method of mounting the floor drain (1) according to claim 8, comprising acts of:

- arranging the mounting plate (90) and a piping to be housed in the aperture (92) in the aperture (92);

- arranging the outlet end of the drain shell into the piping;

- attaching the adjustable rods (96) at corresponding attachment points (94,98) in the mounting plate (90) and the drain shell (30), and

- adjusting the position of the drain shell (30) using the adjustable rods (96)

11. A method of using the mounted floor drain (1) according to any one or more of claims 1-8 during cleaning of a floor, comprising acts of:

- removing the protective cover (20) and the plug (10) from the drain shell (30) before initiating cleaning, and after cleaning

- placing the plug (10) in an airtight manner in the interior (32) of the drain shell (30), and

- placing the protective cover (20) within the drain shell (30) on the inner recess (36) with the top face (22) of the protective cover (20) substantially aligned with the inlet rim (43) and/or the floor and configured to cover and protect the interior (34) of the drain shell (30).

Drawing