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(11) | EP 2 730 835 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
| published in accordance with Art. 153(4) EPC |
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| (54) | LAMP AND DISMOUNTABLE INSTALLATION STRUCTURE THEREOF |
| (57) A dismountable installation structure of a lamp comprising a claw component and a
grip hook (7), said claw component and said grip hook being complementary. The claw
component comprises a shell (1) and a pincer body (2) disposed inside of the shell
(1). At one end of the pincer body (2) is disposed a pair of pincers (3) that is complementary
to the grip hook (7). Disposed on the pincers (3) are a first guide block (4) and
a second guide block (5). At either side of the first guide block (4) are disposed
a first sliding groove (41) and a second sliding groove (42). A third sliding groove
(43) is disposed between the first guide block (4) and a second guide block (5). Disposed
on the shell (1) is a triggering rod (6) having a fixed end. The other end of the
triggering rod (6) has a moving range allowing the end to slide to the third sliding
groove (43) along the first sliding groove (41), and to slide to the second sliding
groove (42) along the third sliding groove (43). Disposed between the shell (1) and
the pincer body (2) is a reset spring (8). Also provided is a lamp that can utilize
the dismountable installation structure. The dismountable installation structure and
the lamp that utilizes the structure are simple in structure and enable ease of light
source replacement. |
FIELD OF THE INVENTION
[0001] The present invention relates generally to the field of lighting, and specifically to a lamp having a detachable installed lamp body and a detachable installation structure thereof.
BACKGROUND OF THE INVENTION
[0002] An existing lamp in the art includes a housing, a lamp body and lamp holder. The housing is installed in the ceiling or wall, and the lamp body is installed on the lamp holder which is then fixed in the housing by a locking device. The locking device includes a circumferential convex ring in the housing and a support matching the convex ring. A circumferential convex ring is arranged inside the support for receiving the lamp body and the lamp holder, and a projection is arranged on the side surface of the support. A gap for receiving the projection is arranged in the circumferential convex ring in the housing. When the projection on the side surface of the support passes through the gap and is chucked in the circumferential convex ring inside the housing, the lamp body and lamp holder are fixed in the hosing. In addition, the support can be replaced by a wire spring which is radially equipped with a cambered outwards projection. When the projection is chucked in the hole provided in the side surface of the housing, the lamp body and lamp holder are fixed in the hosing. However, due to the structure of the above lamp, it is difficult to install and replace light sources, especially when a large amount of light bulbs of the lamp need to be replaced.
[0003] Therefore, it is necessary to provide a lamp having a simply assemble and disassemble structure and easily replaceable light sources.
SUMMARY OF THE INVENTION
[0004] The object of the invention is to provide a lamp having a simply assemble and disassemble structure and easily replaceable light sources, and detachable installation structure thereof.
[0005] In order to achieve the purpose of the present invention, the following solution is presented.
[0006] A detachable installation structure of a lamp of the present invention includes a claw assembly and a hook cooperating with each other; the claw assembly includes a housing and a claw body placed inside the housing; one end of the claw body is provided with a pair of claws that cooperates with the hook; the claws are provided with a first guide block and a second guide block; a first slideway and a second slideway are provided in the two sides of the first guide block, and a third slideway is provided between the first guide block and the second guide block; the housing is provided with a trigger rod, which has one end fixed and the other end slidable along the first slideway to the third slideway and along the third slideway to the second slideway; a return spring is provided between the housing and the claw body.
[0007] Preferably, the hook generally has an arrow shaped structure. When the hook is pushed into the claw, the claw and the claw body as a whole will be pushed into the housing; the trigger rod fixed on the housing will slip to the third slideway along the first slideway, and finally stop in the third slideway between the first guide block and the second guide block; the acting force of the trigger rod overcomes the force of the return spring to fix the claw body, so that the hook is chucked by the two ends of the claw.
[0008] Preferably, the above-mentioned motion trail of the trigger rod can be achieved by setting the positions of the first guide block and the second guide block relative to the trigger rod.
[0009] Optionally, the motion trail of the trigger rod also can be achieved by designing certain structures of the first guide block and the second guide block. Two sides of the top of the first guide block is provided with asymmetric slopes respectively facing the first slideway and the second slideway, and the bottom of the first guide block is also provided with a asymmetric slope. The second guide block points to the bottom of the first guide block, and the top of the second guide block is also provided with an asymmetric slope. The above motion trail of the trigger rod can be achieved by the guide function of the asymmetric slope to the trigger rod.
[0010] Preferably, the housing is provided with a chute, the claw body is provided with a first bump matching the chute, and the first bump is provided with a guide slope, so the claw body can be slidably fixed on the housing.
[0011] Preferably, a positioning rod is provided inside the housing, the return spring is sleeving on the positioning rod. Further, the claw body is provided with a hole, and the positioning rod inserts into the hole, so as to stabilize the motion trail of the claw body.
[0012] According to a further aspect of the invention, the present invention also provides a lamp, which may be a general lamp or a general recessed lamp including a lamp body and a lamp holder, or a recessed fire protected lamp provided with a cylinder-shaped lampshade, and the lamp further includes the above detachable installation structure. For a general lamp or a general recessed lamp, the hook and the claw assembly can be cooperatively fixed on the lamp body or the lamp holder respectively. For a recessed fire protected lamp, the hook and the claw assembly can also be cooperatively fixed on the lamp body or the cylinder-shaped lampshade respectively, wherein the claw assembly can be mounted on the wall of the cylinder-shaped lampshade, or be mounted on the top of the cylinder-shaped lampshade, and accordingly, the hook is mounted on the top of the lamp body. For a recessed fire protected lamp, the hook and the claw assembly can also be cooperatively fixed on the lamp body or the lamp holder respectively.
[0013] The hook can be integral with the lamp body or fixed on the lamp body by a rivet or screw. Alternatively, the claw assembly can be fixed on the lamp holder or the cylinder-shaped lampshade by a rivet or screw. In addition, the claw assembly can also be mounted by such means: the housing is provided with a second bump, the second bump is provided with a guide slope, the lamp holder or the cylinder-shaped lampshade is provided with a fixed structure matching the second bump, and the fixed structure can be an opening, slot, chute, fixed block, etc. matching the second bump.
[0014] The lamp installed with a detachable installation structure can be provided with two or more detachable installation structures as mentioned above, or can be provided with only one detachable installation structure as mentioned above. For example, in an assembling of the lamp body and the cylinder-shaped lampshade in an application of a recessed fire protected lamp, one side of the lamp body is provided with a hook of the detachable installation structure, and on a corresponding side an inner wall of the cylinder-shaped lampshade is provided with a claw assembly; the other side of the lamp body can be connected to the other side of the cylinder-shaped lampshade by means of hinge or bolt.
[0016] The present invention has a simply assemble and disassemble structure and easily replaceable light sources. For a lamp having the detachable installation structure, as long as a push force is applied on the lamp body, the latter can be fixed to the lamp holder or the lampshade. Similarly, the disassembly can be realized by pushing the lamp body. The operation process is simple and convenient for the installation and replacement of light sources, which effectively improves the installer's work efficiency, and greatly reduces the installation cost.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017]
Figure 1 shows an overall schematic view of a claw assembly according to an embodiment of the present invention.
Figure 2 shows a section view of a claw assembly according to an embodiment of the present invention.
Figure 3 shows an exploded view of a claw assembly according to an embodiment of the present invention.
Figure 4 and Figure 5 show schematic structural views of a claw assembly and a hook of an embodiment of the present invention mounted on a recessed fire protected lamp.
Figure 6 shows a section view of a claw assembly mounted on the top of the cylinder-shaped lampshade of a recessed fire protected lamp according to an embodiment of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0018] Please refer to Figures 1-3, the detachable installation structure of the lamp of the present invention includes a claw assembly and a hook working together. The claw assembly includes a housing 1 and a claw body 2 that is placed inside the housing. One end of the claw body is provided with a pair of claws 3 that cooperates with the hook. The claw is provided with a first guide block 4 and a second guide block 5, two sides of the first guide block are provided with a first slideway 41 and a second slideway 42, and a third slideway 43 is provided between the first guide block and the second guide block. The housing is provided with a trigger rod 6 with a fixed end. A return spring 8 is provided between the housing and the claw body.
[0019] The structure of the hook 7 generally presents an arrow shaped profile shown in Figure 4. When the hook 7 is pushed into the claw 3, the claw 3 and the claw body 2 as a whole will be pushed into the housing 1, the trigger rod 6 fixed on the housing will slip to the third slideway 43 along the first slideway 41, and finally the trigger rod will rest on the third slideway between the first guide block and the second guide block finally. The force of the return spring 8 is overcome by the acting force of the trigger rod 6, so the claw body 2 is fixed, and the hook is chucked by the two ends of the claw.
[0020] Please refer to Figures 2 and 3, two sides of the top of the first guide block 4 is provided with asymmetric slopes respectively facing the first slideway and the second slideway, and the bottom of the first guide block is also provided with an asymmetric slope. The second guide block 5 points to the bottom of the first guide block 4, and the top of the second guide block is also provided with an asymmetric slope. The above motion trail of the trigger rod can be achieved by the guide function of the asymmetric slope to the trigger rod.
[0021] The housing is provided with a chute 11, the claw body 2 is provided with a first bump 21 matching the chute, and the first bump is provided with a guide slope, so the claw body can be slidably fixed on the housing.
[0022] A positioning rod 12 is provided inside the housing, the return spring 8 is sleeving on the positioning rod 12. Further, the claw body is provided with a hole 22, and the positioning rod inserts into the hole, so as to stabilize the motion trail of the claw body.
[0023] A lamp of the present invention with the detachable installation structure can be a general lamp including a lamp body and a lamp holder.
[0024] The lamp also can be a recessed fire protected lamp provided with a cylinder-shaped lampshade, as shown in Figures 4-6. For a general lamp, the hook and the claw assembly can be respectively fixed on the lamp body or the lamp holder with cooperation to each other. For a recessed fire protected lamp, the hook and the claw assembly can be respectively fixed on the lamp body or the cylinder-shaped lampshade with cooperation to each other.
[0025] The hook can be integral with the lamp body or fixed on the lamp body by a rivet or screw. Alternatively, the claw assembly can be fixed on the lamp holder or cylinder-shaped lampshade by a rivet or screw.
[0026] As shown in Figures 4-5, taking reference to Figures 1-3, the claw assembly can also be mounted by such means: the housing is provided with a second bump, the second bump is provided with a guide slope, the lamp holder or the cylinder-shaped lampshade is provided with a fixed structure matching the second bump, and the fixed structure can be an opening, slot, chute, fixed block, etc. matching the second bump.
1. A detachable installation structure of a lamp, characterized by comprising a claw assembly and a hook cooperating with each other, wherein the claw
assembly comprises a housing and a claw body placed inside the housing; one end of
the claw body is provided with a pair of claws that cooperates with the hook; the
claws are provided with a first guide block and a second guide block; wherein a first
slideway and a second slideway are provided in the two sides of the first guide block,
and a third slideway is provided between the first guide block and the second guide
block; the housing is provided with a trigger rod, which has one end fixed and the
other end slidable along the first slideway to the third slideway and slidable along
the third slideway to the second slideway; wherein a return spring is provided between
the housing and the claw body.
2. The detachable installation structure of claim 1, characterized in that asymmetric slopes are provided on both sides of the top of the first guide block,
and an asymmetric slope is provided on the bottom of the first guide block.
3. The detachable installation structure of claim 2, characterized in that an asymmetric slope is provided on the top of the second guide block.
4. The detachable installation structure of claim 1 or 3, characterized in that the housing is provided with a chute, the claw body is provided with a first bump
matching the chute, the first bump is provided with a guide slope.
5. The detachable installation structure of claim 1 or 3, characterized in that the housing is provided with a second bump which is provided with a guide slope.
6. The detachable installation structure of claim 1 or 3, characterized in that a positioning rod is provided inside the housing, and the return spring is sleeving
on the positioning rod.
7. The detachable installation structure of claim 6, characterized in that the claw body is provided with a hole and the positioning rod inserts into the hole.
8. A lamp, comprising a lamp body and a lamp holder, characterized in that the lamp further comprises a detachable installation structure according to any one
of claims 1-7 to install the lamp body on the lamp holder, the hook and the claw assembly
are cooperatively fixed on the lamp body or the lamp holder, respectively.
9. A lamp, comprising a lamp body and a cylinder-shaped lampshade, characterized in that the lamp further comprises the detachable installation structure according to any
one of claims 1-7 to install the lamp body on the lamp holder, the hook and the claw
assembly are cooperatively fixed on the lamp body or the cylinder-shaped lampshade,
respectively.
10. The lamp of claim 8 or 9, characterized in that the hook is integral with the lamp body or fixed on the lamp body by a rivet or screw.
11. The lamp of claim 8 or 9, characterized in that the claw assembly is fixed on the lamp holder or the cylinder-shaped lampshade by
a rivet or screw.
12. The lamp of claim 8 or 9, characterized in that the housing is provided with a second bump, the lamp holder or the cylinder-shaped
lampshade is provided with a fixed structure for engaging with the second bump.