Footbridge drain

Abstract

 The footbridge drain, which is placed in the body of the footbridge or any similar bridge and which is made-up of a frame (1) with openings (6) inside on parallel sides, which contain a casing (10) with a thread for the embedded bolt (7).
A frame (1) that is made-up of a plate, pot, frame and outlet, which are permanently joined, and on the parallel outer sides of the frame (1) form gaps (4) for the drainage of the waterproofing (3), in the frame (1) on the seating surfaces (5) is a narrow-ribbed grate (2), with a rib spacing (9) of 14 to 16 mm, and has a matrix element (8) on parallel sides with an opening for the embedded bolt (7).
The top pedestrian outer surface of the narrow-ribbed grate (2) is covered with waterproofing (3), which forms the surface of the footbridge.

Description

Technical Field

[0001] The technical solution is in regard to the bridge drain and falls into the category of structural or constructional elements of bridges.

Background Art

[0002] The new device for drainage of the body of the footbridge is made-up of a vertical drainpipe, which passes through the layers including the waterproofing and contains a grate on the inlet as to catch dirt.

[0003] A disadvantage is that the horizontal grate can become clogged with dirt and therfore can lead to inadequate drainage of all the layers.

Disclosure of the Invention

[0004] The footbridge drain, which can be placed in the body of the footbridge or any similar bridge, is formed by a frame. Inside on parallel sides are openings, which contain casings with thread for the embedded bolt.

[0005] The aim of the solution is that the drain frame is made-up of a plate, pot, frame and outlet, which make one singular part, i.e. all parts are permanently joined together. On the parallel outer sides of the frame are gaps for the drainage of the waterproofing.

[0006] In the drain frame on the seating surface is a narrow-ribbed grate, with a rib spacing of 14-16mm.On parallel sides is a matrix element with an opening for the embedded bolt. The top pedestrian outer surface of the narrow-ribbed grate is covered with waterproofing, which forms the surface of the footbridge.

[0007] The advantage of the designed solution is its structure, which enables the surface waterproofing to be welded onto the inside surface of the device. This ensures the impermeability of the structure of the footbridge.

[0008] The production of the device is simplified by the fact that the plate, pot, frame and drainage part are permanently joined and can therefore be made as a singular part without the necessity of their interconnection.

[0009] This possibility is given by the placement of the device into the structure of the footbridge. The footbridges for pedestrians or cyclists are constructed with less inner layers. The bridge body has therefore a lower constructional height (thickness).

[0010] A huge advantage of the device is in the narrow-ribbed grate, which has a high load capacity and subsequently the rib spacing is between 14-16mm so that it does not restrict the pedestrian traffic.

Brief Description of the Drawings

[0011] An example of the designed solution is described with referral to the drawings, where a cross-section of the drain frame and the waterproofing can be seen (pic1). Pic.2 is an oblique-angled view of the drain frame. Pic.3 is a front view of the narrow-ribbed grate and pic.4 is an oblique-angled view of the narrow-ribbed grate.Pic.5 is of a transverse cross-section of the whole set of the device.

Example of the Invention

[0012] According to the designed solution, a footbridge drain was used in the body of the bridge for cyclists.

[0013] The drain is composed of a square drain frame 1 with openings 6 inside parallel sides, which contain a casing 10 with a thread.

[0014] The drain frame 1 is made-up of a plate, pot, frame and outlet, which are permanently joined as a singular part. On the parallel outer sides of the frame 1, are gaps 4 for the drainage of the waterproofing 3.

[0015] In the drain frame 1 on the seating surfaces 5 is a narrow-ribbed grate 2.

[0016] The spacing of the narrow-ribbed grate 2 is 15 mm. The narrow-ribbed grate 2, has a matrix element 8 with an opening for the embedded bolt 7.

[0017] The top pedestrian outer surface of the narrow-ribbed grate 2 is covered with waterproofing 3, which forms the surface of the footbridge.

[0018] The narrow-ribbed grate 2 and frame 1 are connected by two embedded bolts 7, which pass through the opening of the matrix element 8 into the casing 10.

[0019] The practical usage of the designed solution is possible in pedestrian, cyclist and vehicle traffic. It is also usable for the drainage of straight roofs, ramps or halls.

List of related symbols

[0020] 

1-

drain frame

2-

narrow-ribbed grate

3-

waterproofing

4-

gap

5-

seating surface

6-

opening

7-

embedded bolt

8-

matrix element

9-

rib

10-

casing

Claims

1. The footbridge drain, which is placed in the body of the footbridge or any similar bridge and which is made-up of a frame (1) with openings (6) inside on parallel sides, which contain a casing (10) with a thread for the embedded bolt (7), characterized by a frame (1) that is made-up of a plate, pot, frame and outlet, which are permanently joined, and on the parallel outer sides of the frame (1) form gaps (4) for the drainage of the waterproofing (3), in the frame (1) on the seating surfaces (5) is a narrow-ribbed grate (2), with a rib spacing (9) of 14 to 16 mm, and has a matrix element (8) on parallel sides with an opening for the embedded bolt (7) and the top pedestrian outer surface of the narrow-ribbed grate (2) is covered with waterproofing (3), which forms the surface of the footbridge.

Drawing