Rigid guide rail falling protector
By designing a rigid guide rail fall arrestor that connects the frame and the arm, and utilizing the lever principle and stabilizing wheel structure, the problems of response delay and wear in existing fall arrestors are solved, achieving rapid locking and stable connection, thus improving the safety and service life of high-altitude operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN CHANCHENG DISTRICT GLOBAL ELECTRICAL PORCELAIN ELECTRICAL MATERIALS CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
Existing fall arresters suffer from delayed response, poor braking stability, complex structure, and high maintenance costs. Some fall arresters also suffer from insufficient centrifugal force during low-speed falls, leading to braking lag and posing safety hazards.
A rigid guide rail fall arrestor was designed, comprising a connecting frame, a pull arm, and a locking structure. It locks quickly when a user falls by lever principle, improves movement stability by using stabilizing wheels and a lower wheel, and rapidly increases the friction between the connecting frame and the profile to achieve rapid response and locking.
It improves the response speed and safety of fall arresters, reduces wear and tear, extends service life, and provides a better user experience and safety assurance.
Smart Images
Figure CN224207253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety protection technology for high-altitude operations, and in particular to a rigid guide rail fall arrestor. Background Technology
[0002] Currently, rigid rail fall arresters are crucial for ensuring worker safety in high-altitude operations such as construction, power, and bridge work. Traditional fall arresters primarily employ trigger-based mechanical locking structures, such as those triggered by centrifugal force or those utilizing spring-driven brake blocks. However, existing technologies suffer from numerous drawbacks, including response delays, poor braking smoothness, complex structures and high maintenance costs, and limited applicability. Some fall arresters rely on centrifugal force triggering, but insufficient centrifugal force during low-speed falls or the initial descent can lead to braking lag, failing to lock in time and posing safety hazards. Utility Model Content
[0003] The main purpose of this invention is to provide a rigid guide rail fall arrestor, which aims to enable the fall arrestor to respond quickly and stably, thereby improving the fall arrest effect.
[0004] To achieve the above objectives, this utility model proposes a rigid guide rail fall arrestor, which includes a connecting frame and a pull arm. The connecting frame has a through-hole, and the inner wall of the connecting frame is provided with a stabilizing wheel and a lower wheel facing the movable cavity. The stabilizing wheel is connected to one side of the movable cavity, and the lower wheel is located below the movable cavity.
[0005] An upper wheel is connected between the pull arm and the connecting frame. The upper wheel is connected to the top of the movable cavity. The pull arm is eccentrically connected to the upper wheel. A locking structure is provided on one side of the pull arm, and a locking hole is provided on the pull arm.
[0006] In one embodiment of this application, the connecting frame includes at least two stabilizing frames, a pivot is provided between the two stabilizing frames, the upper wheel is rotatably connected to the pivot, each stabilizing frame is provided with at least two stabilizing wheels and two lower wheels, the two stabilizing wheels are connected to the same horizontal line of the stabilizing frame, and the two lower wheels are connected to the same horizontal line of the stabilizing frame.
[0007] In one embodiment of this application, protective blocks are provided at both ends of the bottom of the stabilizer frame, one end of the protective block is connected to the lower wheel, and the other end is connected to the outer periphery of the stabilizer frame.
[0008] In one embodiment of this application, a relief portion is recessed at the bottom of one of the protective blocks facing the end face of another stabilizer, and the width of the relief portion gradually increases along the direction from the lower wheel to the stabilizer wheel.
[0009] In one embodiment of this application, the pull arm includes a connector and a locking member. At least two connectors are provided, and the two connectors are connected in parallel to both ends of the connecting frame. A locking structure is provided on the same side of the bottom end of the two connectors.
[0010] The locking element is located between the two connecting elements, and the locking hole is formed in the locking element.
[0011] In one embodiment of this application, the locking structure has a plurality of locking teeth on the side opposite to the connector, and the plurality of locking teeth are arranged toward the movable cavity.
[0012] By adopting the above technical solution, this utility model has the following advantages:
[0013] 1. Fall arresters are mainly used to protect users' safety when working at heights. Structurally, fall arresters can be divided into a connecting frame for connecting T-shaped steel or I-beams, and a pull arm connected to the connecting frame. A locking hole is provided to connect the user's safety rope. From the front view, the connecting frame has a through-hole. The pull arm allows the connecting frame to be secured to the T-shaped steel or I-beam, ensuring a stable connection and improving protection. One side of the pull arm faces the pull arm and has a locking structure. When a user falls, the locking hole of the pull arm, the pivot of the pull arm and the connecting frame, and the locking structure will, through leverage, rapidly increase the friction between the fall arrester and the T-shaped steel / I-beam, achieving a rapid response and quick locking to prevent a fall.
[0014] 2. A stabilizing wheel is provided on the side of the connecting frame relative to the movable cavity. The stabilizing wheel is set towards the side of the T-shaped steel / I-beam to ensure the stability of the moving connecting frame, thereby reducing wear between the fall arrestor and the T-shaped steel / I-beam and improving the safety of the fall arrestor. Similarly, the lower wheel is set towards the bottom of the T-shaped steel / I-beam to work with the stabilizing wheel to protect the fall arrestor and the T-shaped steel / I-beam, thereby increasing the service life of the fall arrestor and providing users with a better user experience.
[0015] 3. The upper end of the connecting frame is also equipped with an upper wheel connected to the upper end of the T-shaped steel / I-beam. One end of the pull arm is eccentrically connected to the upper wheel, and the rotation axis of the upper wheel is located on the extension line of the pull arm. This can make the connection between the pull arm and the upper wheel more stable. With this structure, the rotation of the pull arm and the upper wheel can be more sensitive, and the lever arm can be extended, thereby increasing the pressure of the pull arm on the locking structure and effectively improving the anti-fall effect. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 This is a structural schematic diagram of the rigid guide rail fall arrestor of this utility model;
[0018] Figure 2 This is a front view of the rigid guide rail fall arrestor of this utility model;
[0019] Figure 3 This is a side view of the rigid guide rail fall arrestor of this utility model;
[0020] Figure 4 This is a top view of the rigid guide rail fall arrestor of this utility model.
[0021] Explanation of icon numbers:
[0022] 1. Connecting frame; 2. Stabilizing frame; 21. Protective block; 22. Clearance part; 23. Stabilizing wheel; 24. Lower wheel; 3. Upper wheel; 4. Pull arm; 41. Connecting piece; 42. Locking fastener; 43. Locking hole; 5. Locking structure.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0025] Reference Figures 1 to 4 To achieve the above objectives, this utility model proposes a rigid guide rail fall arrestor, which includes a connecting frame 1 and a pull arm 4. The connecting frame 1 is provided with a movable cavity through it. The inner wall of the connecting frame 1 is provided with a stabilizing wheel 23 and a lower wheel 24 facing the movable cavity. The stabilizing wheel 23 is connected to one side of the movable cavity, and the lower wheel 24 is located below the movable cavity.
[0026] An upper wheel 3 is connected between the pull arm 4 and the connecting frame 1. The upper wheel 3 is connected to the top of the movable cavity. The pull arm 4 is eccentrically connected to the upper wheel 3. A locking structure 5 is provided on one side of the pull arm 4. A latching hole 43 is provided on the pull arm 4.
[0027] Fall arresters are primarily used to protect users' safety during high-altitude operations. Structurally, a fall arrester consists of a connecting frame 1 for connecting T-beams or I-beams, and a pull arm 4 connected to the connecting frame 1. A locking hole 43 is provided to connect the user's safety rope. From the front view, the connecting frame 1 has a through-hole, allowing it to be secured to the T-beam or I-beam, ensuring a stable connection and enhancing protection. One side of the pull arm 4 faces the movable cavity and has a locking structure 5. When a user falls, the locking hole 43 of the pull arm 4, the pivot of the pull arm 4 and the connecting frame 1, and the locking structure 5, through leverage, rapidly increase the friction between the fall arrester and the T-beam / I-beam, achieving a rapid response and quick locking to prevent a fall.
[0028] A stabilizing wheel 23 is provided on the side of the connecting frame 1 relative to the movable cavity. The stabilizing wheel 23 is set towards the side of the T-shaped steel / I-beam. It is used to ensure the stability of the movement of the connecting frame 1, thereby reducing the wear between the fall arrestor and the T-shaped steel / I-beam and improving the safety of the fall arrestor. Similarly, the lower wheel 24 is set towards the bottom of the T-shaped steel / I-beam and is used to work with the stabilizing wheel 23 to protect the fall arrestor and the T-shaped steel / I-beam. This can improve the service life of the fall arrestor and give users a better user experience.
[0029] The upper end of the connecting frame 1 is also provided with an upper wheel 3 connected to the upper end of the T-shaped steel / I-beam. One end of the pull arm 4 is eccentrically connected to the upper wheel 3. The rotation axis of the upper wheel 3 is located on the extension line of the pull arm 4, which can make the connection between the pull arm 4 and the upper wheel 3 more stable. Under this structure, the rotation of the pull arm 4 and the upper wheel 3 can be more sensitive, and the lever arm can be extended, thereby increasing the pressure of the pull arm 4 on the locking structure 5, which can effectively improve the anti-fall effect.
[0030] See also Figures 1 to 3 The connecting frame 1 includes at least two stabilizing frames 2, with a rotating shaft between the two stabilizing frames 2. The upper wheel 3 is rotatably connected to the rotating shaft. Each stabilizing frame 2 is provided with at least two stabilizing wheels 23 and two lower wheels 24. The two stabilizing wheels 23 are connected to the same horizontal line of the stabilizing frame 2, and the two lower wheels 24 are connected to the same horizontal line of the stabilizing frame 2.
[0031] At least two stabilizing wheels 23 and lower wheels 24 are provided on one side of the connecting frame 1. Therefore, at least four stabilizing wheels 23 and lower wheels 24 are provided in the entire connecting frame 1. By having multiple stabilizing wheels 23 and lower wheels 24 surround the periphery of the movable cavity, the stability of the connecting frame 1 on the T-shaped steel / I-beam can be guaranteed, and the scratching between the connecting frame 1 and the T-shaped steel / I-beam can be effectively avoided.
[0032] The pull arm 4 is provided with a connecting groove, and the rotating shaft is provided with a torsion spring relative to the pull arm 4. The torsion spring wraps around the rotating shaft and abuts against the connecting groove. In this application, as can be seen from the attached drawings, the connecting groove is located at the end of the pull arm 4 away from the locking structure 5. Under this structure, the torsion spring can constantly drive the pull arm 4 toward the locking structure 5, so that even if the user does not fall, the locking structure 5 can still be connected to the end face of the T-shaped steel / I-beam. Because when the user does not fall, the pressure on the pull arm 4 is only the driving force of the torsion spring, and the friction generated by the locking structure 5 is small, the user can move freely. When a fall occurs, because the locking structure 5 is already connected to the T-shaped steel / I-beam, the locking structure 5 can respond immediately and quickly lock, which can effectively ensure safety.
[0033] See also Figures 1 to 2 The bottom of the stabilizer 2 is provided with protective blocks 21 at both ends. One end of the protective block 21 is connected to the lower wheel 24, and the other end is connected to the outer periphery of the stabilizer 2.
[0034] The stabilizer 2 is provided with a protective block 21 relative to the lower wheel 24. The protective block 21 is connected to the side of the lower wheel 24 facing outward. The protective block 21 can protect the lower wheel 24 itself and prevent damage to the lower wheel 24. The protective block 21 and the T-shaped steel / I-beam have a certain gap.
[0035] See also Figures 1 to 2 The bottom of a protective block 21 is recessed with a relief portion 22 facing the end face of another stabilizer 2, and the width of the relief portion 22 gradually increases along the direction from the lower wheel 24 to the stabilizer wheel 23.
[0036] Because T-shaped steel / I-beams are generally made up of multiple sections of guide rails connected together, and the connection between two guide rails is usually provided with a connector 41, in order to allow the fall arrestor to pass through the connector 41 normally, the protective block 21 is provided with an arc-shaped clearance groove. This can ensure that the protective block 21 will not collide with the connector 41 and can protect the overall structure.
[0037] See also Figures 1 to 4 The pull arm 4 includes a connector 41 and a locking member 42. There are at least two connectors 41. The two connectors 41 are connected in parallel to both ends of the connecting frame 1. A locking structure 5 is provided on the same side of the bottom end of the two connectors 41.
[0038] The locking element 42 is located between the two connecting elements 41, and the locking hole 43 is opened in the locking element 42.
[0039] The pull arm 4 includes a connector 41 and a locking member 42. The connecting groove is provided on the connector 41. The locking member 42 with locking holes 43 is connected through the two connecting grooves to ensure the stability of the movement of the locking member 42.
[0040] Furthermore, both connectors 41 are equipped with locking structures 5, which can effectively ensure the locking effect.
[0041] See also Figures 1 to 3 In one embodiment of this application, the locking structure 5 is provided with a plurality of locking teeth on the side opposite to the connector 41, and the plurality of locking teeth are arranged toward the movable cavity.
[0042] The locking structure 5 has multiple locking teeth at one corner facing the movable cavity. These locking teeth work together to reduce wear and effectively increase friction, thereby improving the anti-fall effect. This structure ensures a good user experience.
[0043] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0044] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A rigid guide rail fall arrestor, characterized in that, It includes a connecting frame and a pull arm. The connecting frame has a through-hole. The inner wall of the connecting frame is provided with a stabilizing wheel and a lower wheel facing the movable cavity. The stabilizing wheel is connected to one side of the movable cavity, and the lower wheel is located below the movable cavity. An upper wheel is connected between the pull arm and the connecting frame. The upper wheel is connected to the top of the movable cavity. The pull arm is eccentrically connected to the upper wheel. A locking structure is provided on one side of the pull arm, and a locking hole is provided on the pull arm.
2. The rigid guide rail fall arrestor according to claim 1, characterized in that, The connecting frame includes at least two stabilizing frames, with a rotating shaft between the two stabilizing frames. The upper wheel is rotatably connected to the rotating shaft. Each stabilizing frame has at least two stabilizing wheels and two lower wheels. The two stabilizing wheels are connected to the same horizontal line of the stabilizing frame, and the two lower wheels are connected to the same horizontal line of the stabilizing frame.
3. A rigid guide rail fall arrestor according to claim 2, characterized in that, The bottom of the stabilizer is provided with protective blocks at both ends. One end of the protective block is connected to the lower wheel, and the other end is connected to the outer periphery of the stabilizer.
4. A rigid guide rail fall arrestor according to claim 3, characterized in that, The bottom of one of the protective blocks is recessed on the end face of the other stabilizer, and the width of the recess gradually increases along the direction from the lower wheel to the stabilizer wheel.
5. A rigid guide rail fall arrestor according to claim 1, characterized in that, The pull arm includes a connector and a locking component. There are at least two connectors, which are connected in parallel to both ends of the connecting frame. A locking structure is provided on the same side of the bottom end of the two connectors. The locking element is located between the two connecting elements, and the locking hole is formed in the locking element.
6. A rigid guide rail fall arrestor according to claim 5, characterized in that, The locking structure has multiple locking teeth on the side opposite to the connector, and the multiple locking teeth are arranged towards the movable cavity.