Installation protection device of building elevator

By combining a rotating rod, bevel gear, double-threaded rod, and anti-slip pad, the problems of tipping over elevator installation protective devices and inconvenience in replacing anti-slip pads are solved. This achieves stable clamping of elevator doors and height adaptability adjustment, improving construction safety and efficiency.

CN224062229UActive Publication Date: 2026-03-31TIANJIN HAOSHENG MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing protective devices installed on building elevators are prone to tipping over during use, which reduces safety. Furthermore, replacing anti-slip mats is inconvenient, affecting construction safety and efficiency.

Method used

The device employs a combination design of rotating rod, bevel gear, double-threaded rod, slider and anti-slip pad to achieve stable clamping of elevator door, and uses baffle plate and limit block for height adaptive adjustment to ensure the stability and easy replacement of the device.

Benefits of technology

It improves the safety of elevator installation and protection, increases the efficiency of replacing anti-slip mats, simplifies the adjustment process, and enhances the practicality and safety of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an installation protection device of a building elevator, which relates to the technical field of installation protection devices of building elevators, and comprises an installation plate, a rotating rod is rotatably connected in the installation plate, a handle is fixedly installed at the upper end of the rotating rod, a bevel gear A is fixedly installed at the lower end of the rotating rod, and the bevel gear A is in meshed connection with a bevel gear B; a bevel gear B is fixedly installed in the rotating rod, a double-end threaded rod is fixedly installed in the bevel gear B, a fixing plate is rotationally connected to the surface of the double-end threaded rod, one end of the double-end threaded rod is in threaded connection with a sliding block frame, and a clamping block is fixedly installed on one side of an anti-skid pad. The clamping force of a clamping plate on an elevator door is conveniently adjusted, and the situation that protection fails due to the fact that the plate topples over is avoided, so that the safety of building elevator installation protection is improved, the adjusting process is simplified, the installation efficiency is improved, meanwhile, the efficiency of replacing an anti-skid pad is improved, and the safety is high.
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Description

Technical Field

[0001] This utility model relates to the field of elevator safety device technology, and in particular to an installation safety device for building elevators. Background Technology

[0002] With the rapid development of modern urban construction, high-rise buildings have gradually become an important part of the city skyline. As an indispensable vertical transportation tool in high-rise buildings, the safety and stability of elevator installation are crucial. Announcement No. CN202322214160.3 discloses a protective safety device for elevator installation, relating to the field of elevator safety devices. It includes: a guardrail with diagonal bracing legs fixedly installed at each of the four corners of its bottom end; a drive assembly located on one side of the guardrail; and a telescopic assembly located inside the guardrail. This invention uses a screw motor to drive a driving bevel gear, which in turn drives a driven bevel gear, which in turn drives a screw. The screw drives a slider to slide along a limiting groove, and the slider drives a sliding plate to slide along a groove in conjunction with rollers. This allows for the filling of gaps between the guardrail and the elevator shaft when there are gaps between the guardrail and the elevator shaft. This further improves the safety of elevator construction. The device has a simple structure and is easy to use, meeting current usage requirements. This utility model has poor practicality and needs improvement. Although the product can fill the gap between the elevator shaft and the guardrail, further improving the safety of elevator construction, the method of leaning against the wall is prone to tipping over. Unsuspecting people who approach it are likely to fall, thus reducing the safety factor and increasing the probability of accidents. Therefore, it needs improvement. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] The present invention adopts the following technical solution: an installation protection device for a building elevator, comprising an installation plate, a rotating rod rotatably connected inside the installation plate, a handle fixedly installed at the upper end of the rotating rod, a bevel gear A fixedly installed at the bottom end of the rotating rod, a bevel gear B meshing with the surface of the bevel gear A, a double-threaded rod fixedly installed inside the bevel gear B, a fixing plate rotatably connected to the surface of the double-threaded rod, a limit plate fixedly connected to one end of the double-threaded rod, a slider frame threadedly connected to one end of the double-threaded rod, a slider fixedly installed on the lower surface of the slider frame, and a clamping mechanism fixedly installed at one end of the slider frame;

[0005] The clamping mechanism includes a clamping plate A. One end of the double-ended threaded rod is slidably connected to clamping plate A and clamping plate B. A telescopic rod is fixedly installed inside clamping plate A and clamping plate B. A spring is sleeved on the surface of the telescopic rod. A locking block is provided on one side of clamping plate B. An anti-slip pad is fixedly installed on one side of the locking block.

[0006] Preferably, the surface of the slider is slidably connected to the interior of the mounting plate, and the side of the anti-slip pad is slidably connected to the clamping plate B. Here, the clamping plate can be adjusted left and right to ensure that the anti-slip pad firmly abuts against the elevator door frames on both sides, and the anti-slip pad can be easily replaced.

[0007] Preferably, one end of the double-threaded rod is slidably connected to the interior of the anti-slip pad. This reduces friction with the double-threaded rod, resulting in a longer service life.

[0008] Preferably, the bottom end of the fixing plate is fixedly mounted between the mounting plate and the side of the mounting plate. Here, the direction of the fixed double-threaded rod is determined to make the movement of the slider more directional and indicative.

[0009] Preferably, a baffle plate is slidably connected inside the mounting plate, a limit block is fixedly mounted on the surface of the mounting plate, a mounting rod is slidably connected inside the limit block, and a slider B is slidably connected inside the baffle plate. Here, to accommodate protection at various elevator door heights, the baffle plate is stretched to block the view from above.

[0010] Preferably, the side of the mounting rod is slidably connected to the interior of the baffle plate, and the slider B is fixedly installed to the interior of the mounting plate. Here, the baffle plate is fixed to prevent it from falling off and thus rendering the protection ineffective.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. This utility model incorporates a rotating rod, bevel gear, double-threaded rod, slider, spring, and anti-slip pad, which allows for adjustment of the clamping force of the clamping plate on the elevator door. This prevents the plate from tipping over and causing the protection to fail, thereby improving the safety of elevator installation protection, simplifying the adjustment process, increasing installation efficiency, and improving the efficiency of replacing the anti-slip pad. It is highly practical.

[0013] 2. By setting up a baffle plate, a limiting block and a limiting rod, the present invention achieves protection for the additional upper surface part, avoids safety problems caused by insufficient height, and makes the installation safer. Attached Figure Description

[0014] Figure 1 This utility model provides an overall schematic diagram of an installation protection device for a building elevator.

[0015] Figure 2 This utility model provides a cross-sectional schematic diagram of an installation protection device for a building elevator;

[0016] Figure 3 This utility model provides a schematic diagram of the structure at the clamping mechanism position of an installation protection device for a building elevator.

[0017] Figure 4 This utility model proposes an installation protection device for building elevators. Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This utility model provides a schematic diagram of the shielding plate structure for an installation protection device for building elevators.

[0019] Legend:

[0020] 1. Mounting plate; 2. Rotating rod; 3. Handle; 4. Bevel gear A; 5. Double-ended threaded rod; 6. Bevel gear B; 7. Fixing plate; 8. Slider frame; 9. Slider A; 10. Clamping plate A; 11. Clamping plate B; 12. Telescopic rod; 13. Spring; 14. Anti-slip pad; 15. Limiting plate; 16. Covering plate; 17. Limiting block; 18. Mounting rod; 19. Slider B; 20. Locking block. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1

[0024] Please see Figure 1-4This utility model provides a technical solution: an installation protection device for a building elevator. A rotating rod 2 is rotatably connected inside the mounting plate 1. A handle 3 is fixedly installed at the upper end of the rotating rod 2, driving a bevel gear to rotate for easy clamping of the elevator door frame. A bevel gear A4 is fixedly installed at the bottom end of the rotating rod 2. A bevel gear B6 is meshed with the surface of the bevel gear A4. A double-ended threaded rod 5 is fixedly installed inside the bevel gear B6, transmitting power to move the clamping mechanisms on both sides away or closer. A fixed plate 7 is rotatably connected to the surface of the double-ended threaded rod 5, fixing the direction of movement. A limit plate 15 is fixedly connected to one end of the double-ended threaded rod 5 to prevent the clamping mechanism from moving too far away, causing the device to fail. A slider frame 8 is threadedly connected to one end of the double-ended threaded rod 5. A slider A9 is fixedly installed on the lower surface of the slider frame 8, allowing the slider A9 to move smoothly in both directions. A clamping mechanism is fixedly installed at one end of the slider frame 8.

[0025] The clamping mechanism includes a clamping plate A10. One end of a double-threaded rod 5 is slidably connected to clamping plate A10 and clamping plate B11. A telescopic rod 12 is fixedly installed inside clamping plate A10 and clamping plate B11. A spring 13 is sleeved on the surface of the telescopic rod 12. When it contacts the elevator door frame, the handle 3 can be rotated to slightly deform the spring 13 and make the clamping stable. A locking block 20 is provided on one side of clamping plate B11. An anti-slip pad 14 is fixedly installed on one side of the locking block 20 to facilitate the replacement of the protective pad and extend the service life of the device.

[0026] Example 2

[0027] Please see Figure 1-5 The mounting plate 1 has a sliding connection to a baffle plate 16 inside. For elevator doors with a relatively high height, the baffle plate 16 can be raised to protect the upper part. A limit block 17 is fixedly installed on the surface of the mounting plate 1. The limit block 17 has a sliding connection to a mounting rod 18 inside. When the baffle plate 16 is raised to a suitable position, it can be fixed to prevent it from falling and thus reducing the safety factor. The baffle plate 16 has a sliding connection to a slider B19 inside, which stabilizes the raising direction and smoothly reaches the designated protection position.

[0028] Working principle: When using this device, first place the mounting plate 1 on the ground close to the surface of the elevator that needs protection. Turn the handle 3 to make the handle 3 drive the rotating rod 2 to rotate. The rotating rod 2 drives the bevel gear A4 to rotate. The bevel gear A4 meshes with the bevel gear B6 and rotates in opposite directions, thereby driving the double-threaded rod 5 to rotate, so that the clamping mechanism moves away until the anti-slip pad 14 contacts the door frame. Continue to turn the handle 3 to make the clamping plate A10 continue to move outward, so that the spring 13 is compressed and deformed until the spring 13 is compressed to the maximum extent, so that the mounting plate 1 can be firmly clamped at the elevator entrance. If the mounting plate 1 needs to be removed, simply turn the handle 3 in the opposite direction to remove it. If the anti-slip pad 14 needs to be replaced, pull out the clip 20 to replace it. When the elevator door is too high, the mounting rod 18 can be pulled out and the shielding plate 16 can be pulled out. When it is in the appropriate position, the mounting rod 18 can be inserted to make the elevator door protection fully closed. When disassembling, pull out the mounting rod 18, restore the shielding plate 16, and then insert the mounting rod 18.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mounting guard for a building elevator, comprising a mounting plate (1), characterized in that: The inside of mounting plate (1) is rotatably connected with rotating rod (2), the upper end of rotating rod (2) is fixedly installed with handle (3), the bottom end of rotating rod (2) is fixedly installed with bevel gear A (4), the surface of bevel gear A (4) is meshedly connected with bevel gear B (6), the inside of bevel gear B (6) is fixedly installed with double-headed threaded rod (5), the surface of double-headed threaded rod (5) is rotatably connected with fixed plate (7), one end of double-headed threaded rod (5) is fixedly connected with limiting plate (15), one end of double-headed threaded rod (5) is threadedly connected with sliding block frame (8), the lower surface of sliding block frame (8) is fixedly installed with sliding block A (9), one end of sliding block frame (8) is fixedly installed with clamping mechanism; The clamping mechanism includes clamping plate A (10), one end of double-headed threaded rod (5) is slidably connected with clamping plate A (10) and clamping plate B (11), the inside of clamping plate A (10) and clamping plate B (11) is fixedly installed with telescopic rod (12), the surface of telescopic rod (12) is sleeved with spring (13), one side of clamping plate B (11) is provided with clamping block (20), one side of clamping block (20) is fixedly installed with non-slip pad (14).

2. Installation protection device for building lifts according to claim 1, characterized in that The surface of sliding block A (9) is slidably connected with the inside of mounting plate (1), the side surface of non-slip pad (14) is slidably connected with clamping plate B (11).

3. The installation guard for a construction elevator according to claim 1, wherein: One end of double-headed threaded rod (5) is slidably connected with the inside of non-slip pad (14).

4. The installation guard for a construction elevator according to claim 1, wherein: The bottom end of fixed plate (7) is fixedly installed with the side surface of mounting plate (1).

5. The installation guard for a construction elevator according to claim 1, wherein: The inside of mounting plate (1) is slidably connected with shielding plate (16), the surface of mounting plate (1) is fixedly installed with limiting block (17), the inside of limiting block (17) is slidably connected with mounting rod (18), the inside of shielding plate (16) is slidably connected with sliding block B (19).

6. Installation guard for building lifts according to claim 5, characterized in that The side surface of mounting rod (18) is slidably connected with the inside of shielding plate (16), the inside of sliding block B (19) is fixedly installed with mounting plate (1).

Citation Information

Patent Citations

  • Protective safety device for elevator installation

    CN220502351U