Elevator light curtain protection device

Abstract

The utility model relates to the field of elevator light curtain protection, and particularly discloses an elevator light curtain protection device which comprises a light curtain body fixedly embedded in an outer protection shell, a sealing cover fixedly connected to the outer side of the outer protection shell, a shifting piece movably connected to the outer side of the sealing cover, and a cross-shaped protruding block fixedly arranged at one end of the shifting piece. A cross-shaped limiting piece is arranged at one end of the cross-shaped convex block, and a vertical plate is fixedly arranged on one side of the cross-shaped limiting piece; the light curtain body can be protected for the first time through the main acrylic plate on the outer side of the outer protection shell, then the light curtain body can be protected for the second time through the auxiliary acrylic plate on the sealing cover, and the outer protection shell and the sealing cover can be disassembled and assembled only through the cross-shaped protruding block at one end of the shifting piece due to the cross-shaped special structure.

Description

Technical Field

[0001] The present application relates to the field of elevator light curtain protection, and in particular to an elevator light curtain protection device. Background Art

[0002] The light curtain is a kind of light curtain used for the safety protection of elevator door switches. It consists of a light curtain power box and a No. 1 spiral wire, etc. It is installed in the gap between the two elevator doors. It has a good protection and detection effect, and has low power consumption. It is widely used in various fields. After installation, the light curtain is almost always exposed to the outside, so the staff will add a layer of plastic baffle on the outside of the light curtain. In the elevators used in residential areas or shopping malls, there are often decoration workers carrying large decoration tools going up and down in the elevator. Therefore, the decoration workers may accidentally touch the baffle on the outside of the light curtain when getting off or on the elevator, causing damage to the baffle;

[0003] Common baffles require multiple bolts to be fixed during installation. Therefore, when installing the baffle later, the bolts may be lost, resulting in loose installation. If the light curtain is broken and not repaired in time, the signal receiving and transmitting ends of the light curtain will be exposed to the outside for a long time and damaged, so that the signal receiving and transmitting ends of the light curtain will be blocked by foreign objects or debris, making it impossible for the light curtain to accurately identify whether there are people getting on and off the elevator. Utility Model Content

[0004] In order to improve the problem of loose installation due to missing bolts and the problem of easy damage of the baffle resulting in the light curtain being unable to accurately identify whether there are people getting on and off the elevator, the present application provides an elevator light curtain protection device.

[0005] The present application provides an elevator light curtain protection device adopts the following technical solution:

[0006] An elevator light curtain protection device comprises an outer protective shell, a light curtain body is embedded and fixed inside the outer protective shell, and a main acrylic plate is embedded and fixed outside the outer protective shell;

[0007] A sealing cover is fixedly connected to the outer side of the outer protective shell, a paddle is movably connected to the outer side of the sealing cover, a cross protrusion is fixedly provided at one end of the paddle, a cross stopper is provided at one end of the cross protrusion, and a vertical plate is fixedly provided on one side of the cross stopper;

[0008] A telescopic rod is fixedly arranged on one side of the vertical plate, a gasket is fixedly arranged on one end of the telescopic rod away from the vertical plate, a spring is sleeved on the outer side of the telescopic rod, and both ends of the spring are fixedly connected to the vertical plate and one side of the gasket respectively.

[0009] By adopting the above technical solution, the light curtain body is protected by the outer protective shell and the sealing cover, so that the light curtain will not be blocked or damaged by debris during later use due to lack of good protection effect.

[0010] Preferably, a limiting groove for the light curtain body to be embedded in one side of the outer protective shell is formed, and a square groove for the main acrylic plate to be embedded in the outer side of the limiting groove is formed.

[0011] By adopting the above technical solution, the light curtain body can be embedded into the outer protective shell through the main square groove, and the light curtain body can be protected for the first time through the main acrylic plate.

[0012] Preferably, a through groove is symmetrically provided at one side of the outer protective shell, a vertical groove is provided on one side of the through groove, and an arc groove is provided on a side of the through groove away from the vertical groove.

[0013] By adopting the above technical solution, through the vertical grooves, the through grooves and the arc grooves, when the sealing cover is installed later, the parts of the sealing cover can be fixedly connected to the outer protective shell.

[0014] Preferably, the vertical plate passes through the vertical slot and is rotatably connected to the through slot, and the gasket is embedded in the arc-shaped slot and movably connected thereto.

[0015] By adopting the above technical solution, the vertical plate is embedded in the through groove through the vertical groove and is rotatably connected with the through groove. Therefore, when used later, the vertical plate can be rotated in the through groove by rotating the paddle as needed, and the gasket will also rotate synchronously in the arc groove when the vertical plate rotates.

[0016] Preferably, a secondary acrylic plate is arranged on the outer side of the sealing cover, and a secondary square groove for the secondary acrylic plate to be embedded is opened on the outer side of the sealing cover.

[0017] By adopting the above technical solution, when the sealing cover is connected to the outer protection, the secondary acrylic plate on the sealing cover can provide secondary protection for the light curtain body, so that when the secondary acrylic plate is damaged during later use, the main acrylic plate can still protect the light curtain body.

[0018] Preferably, a through hole is symmetrically provided on one side of the sealing cover, a circular hole is provided at one end of the through hole, a toothed groove is provided on the side of the circular hole away from the through hole, and one side of the vertical plate passes through the through hole and is rotatably connected to the sealing cover.

[0019] By adopting the technical solution, the toothed groove ensures that if someone wants to open the sealing cover with their fingers after the sealing cover is installed, they will be pierced by the toothed groove, making it impossible to open the sealing cover.

[0020] Preferably, a cross stopper is fixedly provided on one side of the vertical plate, a cross groove is provided on one side of the cross stopper, and the cross stopper is rotatably connected to the circular hole.

[0021] By adopting the above technical solution, the cross protrusion at one end of the paddle can be engaged and connected with the cross limiting member through the cross groove on one side of the cross limiting member to realize transmission.

[0022] Preferably, the cross protrusion passes through the toothed groove, extends to the inside of the cross groove and is clamped with the cross limiting piece.

[0023] By adopting the above technical solution, when the sealing cover needs to be opened or connected to the outer protective shell, the cross protrusion needs to be extended through the toothed groove to the inside of the cross groove for operation.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The main acrylic plate on the outside of the outer protective shell can be used to provide the first protection for the light curtain body, and the secondary acrylic plate on the sealing cover can provide the second protection for the light curtain body. Therefore, if the protective device on the outside of the light curtain body is damaged by human beings later, the light curtain body protected by the double-layer acrylic plate will not be damaged;

[0026] 2. And through the special cross-shaped structure, the outer protective shell and the sealing cover can only be disassembled and assembled through the cross protrusion at one end of the paddle, thereby achieving an anti-disassembly effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0029] Figure 3 This is a schematic diagram of the cutaway three-dimensional structure of the utility model;

[0030] Figure 4 This is a schematic diagram of the explosion three-dimensional structure of the utility model;

[0031] Figure 5 It is a schematic diagram showing the structure of the local equipment of the utility model;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of a local device of the utility model;

[0033] Figure 7 For this utility model Figure 4 Schematic diagram of the enlarged structure of part A in the middle.

[0034] Reference numerals: 10, outer protective shell; 11, limiting groove; 12, main square groove; 13, light curtain body; 14, main acrylic plate; 15, vertical groove; 16, through groove; 17, arc groove;

[0035] 20. Sealing cover; 21. Round hole; 22. Tooth-shaped groove; 23. Secondary square groove; 24. Secondary acrylic plate;

[0036] 30. paddle; 31. cross protrusion; 32. cross limiter; 33. vertical plate; 34. telescopic rod; 35. spring; 36. gasket; 37. cross groove. DETAILED DESCRIPTION

[0037] Embodiment 1, below is combined with the attached Figure 1 —7 Provide further details of this application.

[0038] The embodiment of the present application discloses an elevator light curtain protection device, including an outer protective shell 10, which is fixed in the elevator door by bolt threads. The installation method is a prior art and will not be described in detail. A light curtain body 13 is embedded and fixed inside the outer protective shell 10. The outer protective shell 10 can protect the entire light curtain body 13, so that dust will not fall on the outside of the light curtain body 13 and cause the light curtain body 13 to be unusable during later use. The outer side of the outer protective shell 10 is embedded and fixed with a main acrylic plate 14, and one side of the light curtain body 13 is protected by the main acrylic plate 14, so that one side of the light curtain body 13 can be protected for the first time during later use.

[0039] Please refer to Figure 5 The outer end face of the outer protective shell 10 is detachably plugged and fixed with one end face of the sealing cover 20. The sealing cover 20 can protect one side of the light curtain body 13. A paddle 30 is movably plugged on the outer side of the sealing cover 20. One end of the paddle 30 is arranged in a straight line. A cross protrusion 31 is welded and fixed in the middle of one end of the paddle 30. Rotating the paddle 30 can drive the cross protrusion 31 to rotate synchronously. A cross limiter 32 is arranged at a relative position of one end of the cross protrusion 31. A vertical plate 33 is welded and fixed in the middle of one side of the cross limiter 32. The ends of the vertical plate 33 are provided with arc chamfers, and one side of the cross protrusion 31 is detachably engaged with the slot of the cross limiter 32.

[0040] Please refer to Figure 5One end of the vertical plate 33 is welded and fixed to the fixed end of the telescopic rod 34, and a circular gasket 36 is welded and fixed to the movable end of the telescopic rod 34. The spring 35 is sleeved on the outer side of the telescopic rod 34 and is movable with the surface of the telescopic rod 34. Through the provision of the telescopic rod 34, the gasket 36 and the spring 35, when the vertical plate 33 is away from the vertical groove 15, the spring 35 and the telescopic rod 34 push the vertical plate 33 upward, and the vertical plate 33 will fit tightly with the inner wall of the vertical groove 15, so that the sealing cover 20 is fixedly connected to the outer protective shell 10, and the two ends of the spring 35 are respectively welded and fixed to one side of the vertical plate 33 and the gasket 36.

[0041] When the light curtain body 13 needs to be protected, the light curtain body 13 is first engaged with the limiting groove 11, so that the outer protective shell 10 protects the entire limiting groove 11, and then the main acrylic plate 14 is engaged with the main square groove 12, so that the main acrylic plate 14 protects one side of the light curtain body 13, and the main acrylic plate 14 is transparent so that it will not affect the use of the light curtain body 13 in the later stage, and a small groove is opened in the middle of the main square groove 12, which makes it more convenient to replace or remove the main acrylic plate 14 in the later stage.

[0042] Please refer to Figure 4-7 Two vertical grooves 15 located on the same longitudinal axis are symmetrically provided at one side of the outer protective shell 10, a through groove 16 is provided inside the vertical groove 15 and is connected to the vertical groove 15, and an arc groove 17 is provided inside the through groove 16 and is connected to the through groove 16, a vertical plate 33 passes through the through groove 16 and is rotatably connected to the vertical groove 15, and a gasket 36 is embedded in the arc groove 17 and abuts against the inner wall of the arc groove 17 and is movable, and a side surface of the vertical plate 33 abuts against the sealing cover 20 and is rotatable, and one side of the sealing cover 20 is opposite to the vertical plate 33. A tooth-shaped groove 22 is provided at a position opposite to the tooth-shaped groove 22, a round hole 21 communicating with the tooth-shaped groove 22 is provided inside the sealing cover 20, a cross stopper 32 is embedded inside the round hole 21, the cross stopper 32 is rotatably connected to the round hole 21, one side of the cross stopper 32 is welded and fixed to one side of the vertical plate 33, and a secondary square groove 23 is provided on one side of the sealing cover 20, and a side with a smaller surface size of the secondary acrylic plate 24 is embedded inside the secondary square groove 23 and is fixedly engaged with the sealing cover 20. The shape of the secondary acrylic plate 24 (such as Figure 4 shown).

[0043] When the sealing cover 20 needs to be connected to the outer protective shell 10 in use later, the cross protrusion 31 is extended to the inside of the cross groove 37 through the toothed groove 22, so that the cross protrusion 31 is engaged with the cross groove 37, and the paddle 30 is pushed toward one side of the outer protective shell 10, so that the spring 35 and the telescopic rod 34 are synchronously contracted inside the arc groove 17, and the paddle 30 is rotated 90 degrees clockwise, so that the cross protrusion 31 drives the cross limiter 32 to rotate synchronously, and the cross limiter 32 rotates synchronously inside the through groove 16 when the cross limiter 32 rotates, and the vertical plate 33 will rotate synchronously inside the through groove 16, and the telescopic rod 34 and the spring 35 will be inside the arc groove 17. When the vertical plate 33 is away from the through groove 16, the paddle 30 is pulled out, so that the telescopic rod 34 and the spring 35 push toward one side of the vertical plate 33, so that one side of the vertical plate 33 will be tightly fitted with the inner wall of the through groove 16, so that the vertical plate 33 is limited inside the through groove 16, and the sealing cover 20 is fixedly connected to the outside of the outer protective shell 10.

[0044] In addition, a toothed groove 22 is provided on the outer side of the sealing cover 20. Through the toothed groove 22, if someone wants to open the sealing cover 20 with their fingers after the sealing cover 20 is installed, they will be pierced by the toothed groove 22, making it impossible to open the sealing cover 20. In addition, through the special cross-shaped structure, after the outer protective shell 10 is fixedly installed with the sealing cover 20, it is impossible to separate the outer protective shell 10 from the sealing cover 20 without the cross protrusion 31 at one end of the paddle 30. In addition, through the secondary protection of the secondary acrylic plate 24 during later use, if the secondary acrylic plate 24 is damaged during later use, it will also be protected by the main acrylic plate 14, so that the light curtain body 13 will not be damaged.

[0045] Working principle and process of this utility model:

[0046] When the outer protective shell 10 needs to be fixedly connected with the sealing cover 20, the cross protrusion 31 is extended through the toothed groove 22 to the inside of the cross groove 37, so that the cross protrusion 31 is engaged with the cross groove 37, and the paddle 30 is pushed toward one side of the outer protective shell 10, so that the spring 35 and the telescopic rod 34 are synchronously contracted inside the arc groove 17, and the paddle 30 is rotated 90 degrees clockwise, so that the cross protrusion 31 drives the cross limiter 32 to rotate synchronously, and the vertical plate 33 is in the state where the cross limiter 32 rotates. The through slot 16 rotates synchronously, and the telescopic rod 34 and the spring 35 are inside the arc slot 17. When the vertical plate 33 is away from the through slot 16, the paddle 30 is pulled out to make the telescopic rod 34 and the spring 35 push toward one side of the vertical plate 33. Therefore, one side of the vertical plate 33 will fit tightly with the inner wall of the through slot 16, so that the vertical plate 33 is limited inside the through slot 16, and the sealing cover 20 is fixedly connected to the outside of the outer protective shell 10. Finally, the outer protective shell 10 is connected to the elevator door by bolts.

[0047] When the sealing cover 20 needs to be disassembled later, the vertical plate 33 is no longer engaged with the inner wall of the through groove 16 by rotating it counterclockwise 90 degrees in the same way as described above, so that the telescopic rod 34 and the spring 35 are no longer tightened, and the sealing cover 20 is separated from the outer protective shell 10.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An elevator light curtain protection device, characterized in that: include; An outer protective shell (10), wherein a light curtain body (13) is embedded and fixed inside the outer protective shell (10), and a main acrylic plate (14) is embedded and fixed outside the outer protective shell (10); A sealing cover (20) is fixedly connected to the outer side of the outer protective shell (10), a paddle (30) is movably connected to the outer side of the sealing cover (20), a cross protrusion (31) is fixedly provided at one end of the paddle (30), a cross stopper (32) is provided at one end of the cross protrusion (31), and a vertical plate (33) is fixedly provided on one side of the cross stopper (32); A telescopic rod (34) is fixedly arranged on one side of the vertical plate (33), a gasket (36) is fixedly arranged on one end of the telescopic rod (34) away from the vertical plate (33), a spring (35) is sleeved on the outer side of the telescopic rod (34), and two ends of the spring (35) are respectively fixedly connected to the vertical plate (33) and one side of the gasket (36).

2. An elevator light curtain protection device according to claim 1, characterized in that: A limiting groove (11) for the light curtain body (13) to be embedded is provided on one side of the outer protective shell (10), and a main square groove (12) for the main acrylic plate (14) to be embedded is provided on the outer side of the limiting groove (11).

3. An elevator light curtain protection device according to claim 2, characterized in that: A through slot (16) is symmetrically provided on one side of the outer protective shell (10), a vertical slot (15) is provided on one side of the through slot (16), and an arc-shaped slot (17) is provided on the side of the through slot (16) away from the vertical slot (15).

4. The elevator light curtain protection device according to claim 1, characterized in that: The vertical plate (33) passes through the vertical groove (15) and is rotatably connected to the through groove (16), and the gasket (36) is embedded in the arc groove (17) and is movably connected thereto.

5. The elevator light curtain protection device according to claim 1, characterized in that: A secondary acrylic plate (24) is arranged on the outer side of the sealing cover (20), and a secondary square groove (23) for the secondary acrylic plate (24) to be embedded is opened on the outer side of the sealing cover (20).

6. The elevator light curtain protection device according to claim 1, characterized in that: A through hole is symmetrically provided on one side of the sealing cover (20), a circular hole (21) is provided at one end of the through hole, a toothed groove (22) is provided on the side of the circular hole (21) away from the through hole, and one side of the vertical plate (33) passes through the through hole and is rotatably connected to the sealing cover (20).

7. An elevator light curtain protection device according to claim 1, characterized in that: A cross stopper (32) is fixedly provided on one side of the vertical plate (33), a cross groove (37) is provided on one side of the cross stopper (32), and the cross stopper (32) is rotatably connected to the circular hole (21).

8. The elevator light curtain protection device according to claim 1, characterized in that: The cross protrusion (31) passes through the tooth-shaped groove (22) and extends to the interior of the cross groove (37) and is clamped with the cross stopper (32).

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