A subway maintenance operation safety belt suspension device

By designing a safety belt suspension device for subway maintenance operations, a rolling mechanism is used to reduce friction and a closing mechanism is used to ensure a stable connection. This solves the problems of friction damage and inconvenience in moving the suspension device on the cableway, and improves the safety and mobility of maintenance personnel.

CN224484742UActive Publication Date: 2026-07-14许芮 +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
许芮
Filing Date
2025-04-22
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing safety belt suspension devices are prone to friction damage when fixed to high-altitude cableways and are not easy to move, affecting the work efficiency of maintenance personnel.

Method used

A safety belt suspension device for subway maintenance operations was designed, comprising a hanging ring body, a connecting ring, a closing mechanism, and a rolling mechanism. The rolling mechanism reduces friction, while the closing mechanism ensures a stable connection and prevents detachment.

Benefits of technology

It reduces wear and tear on the suspension system and cableway, improves mobility, and ensures the safety and work efficiency of maintenance personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a subway overhaul operation safety belt suspension device relates to the safe production technical field, including the ring main part and the connecting ring, and the connecting ring sets up in ring main part still includes: closing mechanism, sets up in ring main part, the rolling mechanism sets up in ring main part, the rolling mechanism includes: fixed column, and fixed column sets up in ring main part, and with ring main part sliding connection, mounting, set up in fixed column, and with fixed column fixed connection, buffer spring, set up in mounting, and with mounting fixed connection, gyro wheel, gyro wheel sets up in mounting, and with mounting fixed connection. This device can reduce the friction between this device and the cableway when moving, thereby reducing the wear and tear of this device and the cableway.
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Description

Technical Field

[0001] This utility model relates to the field of safety production technology, and in particular to a safety belt suspension device for subway maintenance operations. Background Technology

[0002] According to relevant national regulations, safety belts must be used when working at heights. Safety belts should be inspected before use and regularly tested. In subway maintenance work, it is necessary to repair equipment and facilities at heights, such as on the roof of the subway car, which involves working at heights and requires the use of safety belts. One end of the safety belt needs to be suspended and connected to the height to ensure its proper functioning. Currently, when moving the safety belt suspension device on a cableway fixed at a height, the suspension device and the cableway experience direct friction, which can lead to frictional damage. Furthermore, this method of movement makes it difficult to pull the suspension device along the cableway, hindering the movement of maintenance personnel. Therefore, improvements are needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a safety belt suspension device for subway maintenance operations, which aims to solve the technical problems of the above-mentioned suspension device to a certain extent.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A safety belt suspension device for subway maintenance work includes a hanging ring body and a connecting ring, wherein the connecting ring is disposed on the hanging ring body, and further includes:

[0006] A closing mechanism is provided on the hanging ring body;

[0007] A rolling mechanism is disposed on the hanging ring body, and the rolling mechanism includes:

[0008] A fixing post is disposed on the hanging ring body and slidably connected to the hanging ring body; an mounting component is disposed on the fixing post and fixedly connected to the fixing post.

[0009] A buffer spring is disposed on the mounting member and fixedly connected to the mounting member; a roller is disposed on the mounting member and fixedly connected to the mounting member. Preferably, the closing mechanism includes:

[0010] A closing device is provided on the main body of the hanging ring;

[0011] A fixing device is provided on the hanging ring body and the closing device.

[0012] Preferably, the closing device includes:

[0013] A closure element is disposed on the main body of the hanging ring and is rotatably connected to the main body of the hanging ring; a closure part is disposed on the main body of the hanging ring and the closure element.

[0014] The closure portion includes:

[0015] The mounting groove is provided on the hanging ring body;

[0016] A rotating component is disposed within the mounting groove and is rotatably connected to the mounting groove;

[0017] A fixing element is provided on the closing element and is fixedly connected to the closing element;

[0018] A closing spring is disposed between the rotating member and the fixed member.

[0019] The closed spring is fixedly connected to the rotating component and the fixed component respectively.

[0020] Preferably, the fixing device includes:

[0021] The mounting part is provided on the hanging ring body and the closure member;

[0022] A fixing part is provided on the mounting part for fixing the closure.

[0023] The mounting part includes:

[0024] A fixing head is provided on the closure member and is fixedly connected to the closure member;

[0025] A fixing spring is disposed within the hanging ring body and is fixedly connected to the hanging ring body. The fixing part includes:

[0026] A fixing rod is disposed inside the hanging ring body and is slidably connected to the hanging ring body;

[0027] A fixing groove is provided inside the fixing head and hanging ring body.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0029] 1. This device is equipped with a closing mechanism, which allows it to be attached to the cableway. The safety belt can be connected to the device via a connecting ring. At the same time, the closing mechanism can secure the device twice during closure to prevent it from detaching and ensure its safety.

[0030] 2. By incorporating a rolling mechanism, this device reduces friction between itself and the cableway during movement, thereby reducing wear on both and facilitating movement of the device on the cableway, which in turn makes it easier for maintenance personnel to move around. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Of course, the drawings described below are only some embodiments of this utility model. In the art, if there are other specific technical requirements, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A three-dimensional structural schematic diagram of a safety belt suspension device for subway maintenance operations is shown.

[0033] Figure 2 A partial cross-sectional view of a safety belt suspension device for subway maintenance operations is shown.

[0034] Figure 3 An exploded three-dimensional structural diagram of the rolling mechanism of a safety belt suspension device for subway maintenance operations is shown.

[0035] Figure 4 An exploded three-dimensional structural diagram of a partial closing mechanism of a safety belt suspension device for subway maintenance operations is shown.

[0036] Figure 5 An exploded three-dimensional structural diagram of a partial closing mechanism of a safety belt suspension device for subway maintenance operations is shown.

[0037] Legend:

[0038] 1. Hanging ring body; 2. Connecting ring; 3. Fixing post; 4. Mounting component; 5. Buffer spring; 6. Roller; 7. Closing component; 8. Mounting groove; 9. Rotating component; 10. Fixing component; 11. Closing spring; 12. Fixing head; 13. Fixing spring; 14. Fixing rod; 15. Fixing groove. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Of course, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained in the art without creative effort are within the scope of protection of the present utility model.

[0040] Reference Figures 1 to 5 The present invention provides a further description of an embodiment of a safety belt suspension device for subway maintenance operations.

[0041] A safety belt suspension device for subway maintenance operations includes a hanging ring body 1 and a connecting ring 2, the connecting ring 2 being disposed on the hanging ring body 1. It also includes: a closing mechanism disposed on the hanging ring body 1 for closing the device; and a rolling mechanism disposed on the hanging ring body 1 for rolling and wear prevention. The rolling mechanism includes: multiple fixed posts 3, which are slidably connected to the hanging ring body 1 but do not detach from it; a mounting member 4, which is fixedly connected to the fixed posts 3; a buffer spring 5, which is fixedly connected to the mounting member 4; and multiple rollers 6, which are fixedly connected to the mounting member 4.

[0042] With this configuration, the buffer spring 5 buffers the roller 6, which is used to contact the cableway, when the device moves on the cableway, ensuring the stable operation of the roller 6. The roller 6 is the part of the device that contacts the cableway. The rotation of the roller 6 makes it easier for the device to move on the cableway and also reduces wear between the device and the cableway.

[0043] refer to Figure 1 and Figure 2 In a preferred embodiment, the closing mechanism includes: a closing device disposed on the hanging ring body 1 for closing the device; and a fixing device disposed on the hanging ring body 1 and the closing device for fixing the closing mechanism.

[0044] refer to Figure 2 and Figure 5 In a preferred embodiment, the closing device includes: a closing member 7, which is disposed on the hanging ring body 1 and rotatably connected to the hanging ring body 1; and a closing part, which is disposed on the hanging ring body 1 and the closing member 7, for closing the device.

[0045] refer to Figure 3 and Figure 5 In a preferred embodiment, the closing part includes: a mounting groove 8, disposed on the hanging ring body 1, for component installation; a rotating member 9, disposed in the mounting groove 8 and rotatably connected to the mounting groove 8; a fixing member 10, disposed on the closing member 7 and fixedly connected to the closing member 7; and a closing spring 11, disposed between the rotating member 9 and the fixing member 10 and fixedly connected to the rotating member 9, and the closing spring 11 is fixedly connected to the fixing member 10.

[0046] refer to Figure 2 In a preferred embodiment, the fixing device includes: a mounting part disposed on the hanging ring body 1 and the closing member 7 for mounting components; and a fixing part disposed on the mounting part for fixing the closing member 7.

[0047] refer to Figure 4In a preferred embodiment, the mounting part includes: a fixing head 12, which is disposed on the closure member 7 and fixedly connected to the closure member 7; and a fixing spring 13, which is disposed inside the hanging ring body 1 and fixedly connected to the hanging ring body 1.

[0048] refer to Figure 4 In a preferred embodiment, the fixing part includes: a fixing rod 14, which is disposed in the hanging ring body 1 and slidably connected to the hanging ring body 1; and a fixing groove 15, which is disposed in the fixing head 12 and the hanging ring body 1.

[0049] With this configuration, the closing spring 11 can fix the closing member 7 through its own extension and contraction. When the closing spring 11 rotates with the closing member 7, the closing spring 11 can rotate through the rotating member 9 to prevent the closing spring 11 from bending excessively and to protect the closing spring 11 from movement. The fixing rod 14 can compress the fixing spring 13. At the same time, one end of the fixing rod 14 is set in a cross shape, and the fixing groove 15 is also cross-shaped as a whole. However, a circular groove is set in the fixing groove 15. When the fixing spring 13 is compressed to the limit, one end of the fixing rod 14 enters the circular groove. By rotating the fixing rod 14, the fixing rod 14 is fixed in the fixing groove 15, thereby fixing the fixing rod 14.

[0050] This device features a closing mechanism that allows it to be attached to the cableway. A connecting ring allows for the attachment of a safety belt to the device. The closing mechanism provides a stable closure through two secure fixations, preventing the device from detaching and ensuring its safety. Furthermore, the rolling mechanism reduces friction between the device and the cableway during movement, minimizing wear and tear on both. This also facilitates movement of the device on the cableway, making it easier for maintenance personnel to move around.

[0051] When the device is in operation, pushing the closing member 7 causes it to rotate, compressing the closing spring 11. Simultaneously, the closing spring 11 rotates via the rotating member 9, ensuring its stable operation. The device is then suspended on a high cableway. The closing member 7 is released, and the closing spring 11 rebounds, causing the fixing head 12 to contact the hanging ring body 1. Then, the fixing rod 14 is pressed, compressing the fixing spring 13 and rotating it to fix it in the fixing groove 15, further securing the fixing head 12. After the device is secured, the safety belt is connected to it via the connecting ring 2. When maintenance personnel move the device, the rollers 6 on the device will contact the cableway and roll along it, preventing direct contact and excessive friction. This also facilitates movement of the device on the cableway, thus facilitating the movement of maintenance personnel.

[0052] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily implemented by those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety belt suspension device for subway maintenance operations, comprising a hanging ring body (1) and a connecting ring (2), wherein the connecting ring (2) is disposed on the hanging ring body (1), characterized in that, Also includes: A closing mechanism is provided on the hanging ring body (1); A rolling mechanism is disposed on the hanging ring body (1), and the rolling mechanism includes: A fixing post (3) is provided on the hanging ring body (1) and is slidably connected to the hanging ring body (1); The mounting component (4) is disposed on the fixing post (3) and is fixedly connected to the fixing post (3); A buffer spring (5) is disposed on the mounting member (4) and fixedly connected to the mounting member (4); Roller (6) is disposed on the mounting member (4) and fixedly connected to the mounting member (4).

2. The subway maintenance safety belt suspension device according to claim 1, characterized in that, The closing mechanism includes: A closing device is provided on the hanging ring body (1); A fixing device is provided on the hanging ring body (1) and the closing device.

3. The subway maintenance safety belt suspension device according to claim 2, characterized in that, The closing device includes: A closure element (7) is disposed on the hanging ring body (1) and is rotatably connected to the hanging ring body (1); The closing part is provided on the hanging ring body (1) and the closing member (7).

4. A subway maintenance safety belt suspension device according to claim 3, characterized in that, The closure portion includes: The mounting groove (8) is provided on the hanging ring body (1); A rotating component (9) is disposed in the mounting groove (8) and is rotatably connected to the mounting groove (8); A fastener (10) is disposed on the closure member (7) and is fixedly connected to the closure member (7); A closing spring (11) is disposed between the rotating member (9) and the fixed member (10).

5. A subway maintenance safety belt suspension device according to claim 4, characterized in that, The closed spring (11) is fixedly connected to the rotating part (9) and the fixed part (10) respectively.

6. A subway maintenance safety belt suspension device according to claim 3, characterized in that, The fixing device includes: The mounting part is provided on the hanging ring body (1) and the closing part (7); A fixing part is provided on the mounting part for fixing the closure (7).

7. A subway maintenance safety belt suspension device according to claim 6, characterized in that, The mounting unit includes: A fixing head (12) is disposed on the closing member (7) and fixedly connected to the closing member (7); A fixed spring (13) is disposed inside the hanging ring body (1) and is fixedly connected to the hanging ring body (1).

8. A subway maintenance safety belt suspension device according to claim 7, characterized in that, The fixing part includes: A fixing rod (14) is disposed inside the hanging ring body (1) and is slidably connected to the hanging ring body (1); A fixing groove (15) is provided in the fixing head (12) and the hanging ring body (1).