Lift shaft edge protection device

By installing detachable protective railings and clip components on the walls on both sides of the elevator shaft, the problems of low efficiency and easy damage to the walls of existing elevator shaft protection devices are solved, achieving convenient disassembly and assembly and a solid edge protection effect.

CN223647458UActive Publication Date: 2025-12-09CHINA OVERSEAS CONSTR LTD
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Patent Information

Application Number
CN202423278361.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-09
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing elevator shaft edge protection devices suffer from problems such as low work efficiency, expansion bolts easily damaging the wall, troublesome installation and removal, weak protection and the need for multiple repairs, resulting in waste of labor and costs.

Method used

The protective railing and buckle assembly are used. The protective railing can be detachably installed on the walls on both sides of the elevator shaft by means of buckle plate and fastening bolt. The buckle assembly includes buckle plate and buckle. The fastening bolt is used to press the wall to meet the clamping requirements of walls of different thicknesses.

Benefits of technology

The system enables detachable installation of the protective fence, avoiding damage to the wall, improving the convenience of installation and removal as well as the robustness of the protection, and reducing maintenance frequency and costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an elevator shaft edge protection device which comprises a protection barrier and a buckle assembly, the protection barrier is formed by connecting a plurality of vertical rods and transverse rods, the buckle assembly is connected with the vertical rods on the left side and the right side of the protection barrier, the buckle assembly is used for fixing the protection barrier to walls on the two sides of an elevator shaft, and the buckle assembly comprises a buckle plate and a buckle; a clamping groove used for being in butt joint with a wall is formed in one end of the buckle plate, a fastening hole used for installing a fastening bolt is formed in the side face of the buckle plate, the buckle is installed at the other end of the buckle plate and used for being connected with vertical rods on the left side and the right side of the protective barrier, and the whole device can be recycled, is convenient to disassemble and assemble, attractive and practical and does not need to damage the wall.
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Description

Technical Field

[0001] This utility model belongs to the technical field of edge protection equipment, and in particular relates to an edge protection device for elevator shafts. Background Technology

[0002] After the structural elevator shaft construction is completed, elevators with reserved door openings often cannot be installed immediately, requiring opening protection to prevent safety hazards. Vertical protection measures must be erected at these reserved door openings to eliminate safety risks and ensure the safety of on-site workers. Currently, elevator shaft edge protection railings are typically fixed to the outside of the elevator door opening with expansion bolts. However, these railings need to be removed during wall construction or plastering, and also when entering the elevator shaft. This method of elevator shaft edge protection suffers from low work efficiency, the expansion bolts easily damage the wall, installation and removal are troublesome, the protection is not secure, and multiple maintenance is required, easily leading to wasted labor and costs. Utility Model Content

[0003] The purpose of this utility model is to solve at least one problem of the prior art and to propose an elevator shaft edge protection device.

[0004] To achieve the above objectives, this utility model proposes an elevator shaft edge protection device, including a protective railing and a buckle assembly. The protective railing is composed of several vertical and horizontal bars connected together. The buckle assembly is connected to the vertical bars on the left and right sides of the protective railing. The buckle assembly is used to fix the protective railing to the walls on both sides of the elevator shaft. The buckle assembly includes a buckle plate and a buckle. One end of the buckle plate is provided with a groove for engaging with the wall, and the side of the buckle plate is provided with a fastening hole for installing fastening bolts. The buckle is installed at the other end of the buckle plate and is used to connect the vertical bars on the left and right sides of the protective railing.

[0005] Preferably, the buckle includes an upper snap-fit ​​piece and a lower snap-fit ​​piece, both of which have snap-fit ​​interfaces. The lower snap-fit ​​piece is fixed to the buckle plate, and the upper snap-fit ​​piece is stacked on the upper surface of the lower snap-fit ​​piece, with their snap-fit ​​interfaces facing opposite directions. After the upper and lower snap-fit ​​pieces are stacked, the overlapping portion of their snap-fit ​​interfaces forms a snap-fit ​​channel adapted to the vertical rod. The upper and lower snap-fit ​​pieces are connected by fasteners.

[0006] Preferably, the inner wall of the card interface is fitted with an anti-slip washer.

[0007] Preferably, the fastener is a fastening screw or a pin.

[0008] Preferably, the buckle is a clamp structure.

[0009] Preferably, the bottom front of the protective fence is provided with a baffle.

[0010] Preferably, both the horizontal and vertical bars of the protective fence are made of steel pipes.

[0011] Preferably, the side of the buckle plate is fitted with fastening bolts for pressing the wall and the buckle plate together, and a washer is provided between the fastening bolts and the wall.

[0012] The beneficial effects of this utility model are as follows: By detachably installing buckle components on both sides of the protective railing, the buckle components include buckle plates for connecting to the wall, allowing the protective railing to be detachably installed on the walls on both sides of the elevator shaft without damaging the wall during installation; the entire device is reusable, easy to assemble and disassemble, and aesthetically pleasing and practical; the side of the buckle plate is provided with fastening holes for installing fastening bolts, and the fastening bolts are tightened to press the buckle plate and the wall, satisfying the clamping requirements of the buckle plate for walls of different thicknesses.

[0013] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 This is a side view of an embodiment of the present utility model.

[0016] Figure 3 This is a top view of an embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the usage state of an embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the protective fence according to an embodiment of the present utility model.

[0019] Figure 6 This is a schematic diagram of the buckle assembly according to an embodiment of the present utility model.

[0020] In the diagram: 1. Guardrail; 2. Buckle assembly; 3. Wall; 11. Baffle; 21. Buckle plate; 22. Buckle slot; 23. Upper buckle piece; 24. Lower buckle piece; 25. Buckle interface. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. In the description of this application, it should be noted that the terms "inner," "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment provides an elevator shaft edge protection device, including a protective railing 1 and a buckle assembly 2. The protective railing 1 is composed of several vertical and horizontal bars connected together. The buckle assembly 2 is connected to the vertical bars on the left and right sides of the protective railing 1. The buckle assembly 2 is used to fix the protective railing 1 to the walls 3 on both sides of the elevator shaft. The buckle assembly 2 includes a buckle plate 21 and a buckle. One end of the buckle plate 21 is provided with a groove 22 for engaging with the wall 3. The side of the buckle plate 21 is provided with a fastening hole for installing fastening bolts. The buckle is installed at the other end of the buckle plate 21 and is used to connect the vertical bars on the left and right sides of the protective railing 1.

[0025] The number of vertical and horizontal bars and the installation gap can be adjusted according to installation requirements. Preferably, there are 3 horizontal bars, which are set parallel to each other, and the vertical and horizontal bars are fixed together by welding.

[0026] In this embodiment, refer to Figure 1 and Figure 6The buckle includes an upper snap-fit ​​piece 23 and a lower snap-fit ​​piece 24. Both the upper snap-fit ​​piece 23 and the lower snap-fit ​​piece 24 are provided with snap-fit ​​interfaces 25. The lower snap-fit ​​piece 24 is fixed on the buckle plate 21. The upper snap-fit ​​piece 23 is stacked on the upper surface of the lower snap-fit ​​piece 24, and the snap-fit ​​interfaces 25 of the two are facing opposite directions. After the upper snap-fit ​​piece 23 and the lower snap-fit ​​piece 24 are stacked, the overlapping part of their snap-fit ​​interfaces 25 forms a snap-fit ​​channel adapted to the vertical rod. The upper snap-fit ​​piece 23 and the lower snap-fit ​​piece 24 are connected by fasteners, including but not limited to fastening screws or pins.

[0027] Furthermore, the inner wall of the card interface 25 is equipped with an anti-slip washer, which makes it less likely for the buckle to loosen after it is connected to the vertical rod.

[0028] In this embodiment, the buckle is a clamp structure, which facilitates the assembly and disassembly of the buckle assembly 2 and the vertical rod.

[0029] In this embodiment, refer to Figure 1 , Figure 2 and Figure 4 The bottom front of the guardrail 1 is provided with a baffle 11. The baffle 11 is designed to prevent debris from falling into the elevator shaft. The height of the baffle 11 can be selected according to installation requirements. The baffle 11 can be installed on the bottom front of the guardrail 1 in a detachable manner or by welding. The detachable manner includes, but is not limited to, screw or pin connection.

[0030] In this embodiment, both the horizontal and vertical bars of the protective fence 1 are made of steel pipes. Provided that the installation strength is met, the horizontal and vertical bars may also be made of other materials, including but not limited to aluminum alloy or wood.

[0031] In this embodiment, refer to Figure 1 and Figure 4 The fastening holes on the side of the buckle plate 21 are equipped with fastening bolts for pressing the wall 3 and the buckle plate 21 together. A washer is provided between the fastening bolt and the wall 3. The washer is provided to prevent the fastening bolt from damaging the surface of the wall. On the other hand, different thicknesses of washer can be selected according to the different installation gaps between the buckle plate 21 and the wall 3 of different thicknesses, so as to meet the clamping requirements of the buckle plate 21 and the wall 3 of different thicknesses.

[0032] The working process of this utility model:

[0033] During operation, the elevator shaft edge protection device sets up the guardrail 1 at the elevator shaft opening and fixes the buckle plate 21 to the vertical bars on the left and right sides of the guardrail 1 by buckling. The buckle plates 21 on the left and right sides of the guardrail 1 are interlocked with the wall 3 and fixed by fastening bolts, thereby achieving edge protection of the elevator shaft.

[0034] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. An elevator shaft edge protection device, characterized in that: The system includes a protective fence and a buckle assembly. The protective fence is composed of several vertical and horizontal bars connected together. The buckle assembly is connected to the vertical bars on the left and right sides of the protective fence. The buckle assembly is used to fix the protective fence to the walls on both sides of the elevator shaft. The buckle assembly includes a buckle plate and a buckle. One end of the buckle plate is provided with a groove for engaging with the wall. The side of the buckle plate is provided with fastening holes for installing fastening bolts. The buckle is installed at the other end of the buckle plate and is used to connect the vertical bars on the left and right sides of the protective fence.

2. The elevator shaft edge protection device as described in claim 1, characterized in that: The buckle includes an upper snap-fit ​​piece and a lower snap-fit ​​piece, both of which have snap-fit ​​interfaces. The lower snap-fit ​​piece is fixed to the buckle plate, and the upper snap-fit ​​piece is stacked on the upper surface of the lower snap-fit ​​piece, with their snap-fit ​​interfaces facing opposite directions. After the upper and lower snap-fit ​​pieces are stacked, the overlapping part of their snap-fit ​​interfaces forms a snap-fit ​​channel adapted to the vertical rod. The upper and lower snap-fit ​​pieces are connected by fasteners.

3. The elevator shaft edge protection device as described in claim 2, characterized in that: The card interface has anti-slip pads installed on its inner wall.

4. The elevator shaft edge protection device as described in claim 2, characterized in that: The fastener is a fastening screw or a pin.

5. The elevator shaft edge protection device as described in claim 1, characterized in that: The buckle is a clamp structure.

6. The elevator shaft edge protection device as described in claim 1, characterized in that: The bottom front of the protective fence is equipped with a baffle.

7. The elevator shaft edge protection device as described in claim 1, characterized in that: The horizontal and vertical bars of the protective fence are all made of steel pipes.

8. The elevator shaft edge protection device as described in claim 1, characterized in that: The side of the buckle plate is equipped with fastening bolts for pressing the wall and the buckle plate together, and a pad is provided between the fastening bolts and the wall.