Portable adjustable falling protector
By setting guide wheels and limit rings at the bottom of the fall arrestor body, the problem of friction between the wire rope and the outlet when the wire rope is tilted is solved, thus enabling convenient adjustment of the wire rope and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-24
AI Technical Summary
The existing fall arrestor's main body extends outward with a steel wire rope and a lower hook. However, the outer side of the rope outlet at the bottom of the fall arrestor's main body lacks an adjustment guide structure, causing the steel wire rope to rub against the outlet when tilted during use, thus reducing the service life of the steel wire rope.
A first guide wheel and a second guide wheel are installed at the bottom of the fall arrestor body. The steel wire rope is guided and limited by a connecting mechanism and a reinforcing component. The limit ring and rubber ring are used to avoid friction and improve the stability of the steel wire rope.
The design of guide wheels and limit rings solves the problem of friction between the wire rope and the outlet when the wire rope is tilted, extending the service life of the wire rope and improving its portability and safety.
Smart Images

Figure CN224024082U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of safety protection equipment for high-altitude operations, specifically a portable adjustable fall arrestor. Background Technology
[0002] A fall arrestor is a safety protection device suitable for high-altitude operations. Under normal use, the safety rope of the fall arrestor will extend and retract freely with the human body. Under the action of the internal mechanism of the fall arrestor, it is in a semi-tension state, so that the operator has no sense of restraint. In case of a fall, the safety rope will pull out at a significantly faster speed, and the locking system inside the device will automatically lock, forcibly stopping the operator from falling.
[0003] For example, authorization announcement number CN211357501U relates to a novel fall arrestor, belonging to the technical field of safety protection equipment for high-altitude operations. The novel fall arrestor includes a main body, an upper suspension rope at the upper end of the main body, a lower connecting rope extending from the lower end of the main body, and a linear damping buffer. The upper end of the upper suspension rope is connected to the telescopic part of the linear damping buffer. A hook is provided at the upper end of the linear damping buffer; a threaded hole is provided at the upper end of the linear damping buffer, and a threaded connector is provided on the hook. The linear damping buffer and the hook are connected by a thread. This utility model, by incorporating a linear damping buffer into the fall arrestor, can provide a certain degree of cushioning when the user stops falling, preventing the user from being suddenly stopped and impacted during a fall, thus improving safety.
[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:
[0005] Although this new type of fall arrestor can provide some cushioning when a user falls by incorporating a linear damping buffer, its operation is hampered by several issues. The existing fall arrestor's main body extends with a steel wire rope and a hook, but lacks an adjustment guide structure for the wire rope at the rope outlet. Users typically work around the fall arrestor's main body, causing the extended steel wire rope to be tilted. As the rope moves, it continuously rubs against the outlet, significantly reducing its lifespan. Utility Model Content
[0006] To address the problems mentioned in the background section, the present invention aims to provide a portable adjustable fall arrestor that facilitates the adjustment and guidance of the wire rope. This solves the problem that existing fall arrestors have a wire rope and a hook extending from the main body, but lack an adjustment and guidance structure for the wire rope on the outside of the rope outlet at the bottom of the main body. Users typically work around the fall arrestor, where the extended wire rope is tilted, causing friction with the outlet as the rope moves, significantly reducing its lifespan.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a portable adjustable fall arrestor, comprising a fall arrestor body, an upper suspension rope, an upper hook, and a steel wire rope. The upper suspension rope is fixedly installed on the top of the fall arrestor body, and the upper hook is fixedly installed on the other end of the upper suspension rope. The end of the steel wire rope near the upper hook is movably installed inside the fall arrestor body. First guide wheels are provided on the front and rear sides of the bottom of the fall arrestor body, and second guide wheels are provided on the left and right sides of the bottom of the fall arrestor body. Connecting mechanisms are fixedly connected to the front and rear sides of the left side of the bottom of the fall arrestor body, and reinforcing components are fixedly connected to the left and right sides of the bottom of the fall arrestor body.
[0008] In a preferred embodiment of this invention, the connecting mechanism includes a first connecting seat, and a second connecting seat is fixedly connected to the front and rear sides of the bottom right side of the fall arrester body. The inner sides of the first and second connecting seats are movably connected to a first movable rod via a pin. The right side of the first connecting seat is movably connected to a second movable rod via a pin. The other end of the second movable rod is movably connected to the left side of the second connecting seat via a pin. The second guide wheel is movably mounted on the surface of the first movable rod, and the first guide wheel is movably mounted on the surface of the second movable rod.
[0009] As a preferred embodiment of the present invention, the reinforcing component includes a first support rod, the other end of which is fixedly connected to a first arc plate, and the inner wall of the first arc plate is movably connected to the top of the surface of the first guide wheel.
[0010] As a preferred embodiment of this utility model, two second support rods are fixedly connected to the front and rear sides of the bottom of the fall arrestor body, and a second arc plate is fixedly connected to the other end of the two second support rods. The inner wall of the second arc plate is movably connected to the top of the surface of the second guide wheel.
[0011] As a preferred embodiment of this invention, two limiting rings are fixedly connected to the surfaces of both the first guide wheel and the second guide wheel, and a rubber ring is fixedly connected to the bottom of the fall arrestor body.
[0012] As a preferred embodiment of this utility model, the inner walls of both the first connecting seat and the second connecting seat are fixedly connected with rubber strips, and the rubber strips are arranged in an L-shape.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model, by setting a first guide wheel and a second guide wheel, can guide the inclined wire rope, thereby facilitating the user to adjust the wire rope in all directions. It solves the problem that in existing fall arresters, the main body extends outward with a wire rope and a hook, but the outer side of the rope outlet at the bottom of the fall arrester body does not have an adjustment and guidance structure for the wire rope. Users generally work around the fall arrester body, at which time the extended wire rope is in an inclined state. As the wire rope moves, it will continuously rub against the rope outlet, greatly reducing the service life of the wire rope. This invention achieves the effect of facilitating the adjustment and guidance of the wire rope.
[0015] 2. By setting a connecting mechanism, the first connecting seat and the second connecting seat can limit the movement of the first movable rod and the second movable rod. The limit of the movement of the first movable rod and the second movable rod can limit the movement of the first guide wheel and the second guide wheel, thereby facilitating the movement of the wire rope on the surface of the first guide wheel and the second guide wheel.
[0016] 3. By setting up a reinforcing component, the first support rod can fix and limit the first arc plate, and the first arc plate can improve the stability of the first guide wheel, thus achieving a reinforcing effect. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a three-dimensional structural diagram of the first guide wheel and the second guide wheel of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the connecting mechanism of this utility model.
[0020] In the diagram: 1. Fall arrestor body; 2. Upper suspension rope; 3. Upper hook; 4. Steel wire rope; 5. First guide wheel; 6. Second guide wheel; 7. Connecting mechanism; 71. First connecting seat; 72. Second connecting seat; 73. First movable rod; 74. Second movable rod; 8. Reinforcing component; 81. First support rod; 82. First arc plate; 9. Second support rod; 10. Second arc plate; 11. Limiting ring; 12. Rubber ring; 13. Rubber wrapping strip. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, 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 by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figures 1 to 3 As shown, the present invention provides a portable adjustable fall arrestor, comprising a fall arrestor body 1, an upper suspension rope 2, an upper hook 3, and a steel wire rope 4. The upper suspension rope 2 is fixedly installed on the top of the fall arrestor body 1, and the upper hook 3 is fixedly installed on the other end of the upper suspension rope 2. The end of the steel wire rope 4 near the upper hook 3 is movably installed inside the fall arrestor body 1. First guide wheels 5 are provided on the front and rear sides of the bottom of the fall arrestor body 1, and second guide wheels 6 are provided on the left and right sides of the bottom of the fall arrestor body 1. Connecting mechanisms 7 are fixedly connected to the front and rear sides of the left side of the bottom of the fall arrestor body 1, and reinforcing components 8 are fixedly connected to the left and right sides of the bottom of the fall arrestor body 1.
[0023] refer to Figure 3 The connecting mechanism 7 includes a first connecting seat 71. A second connecting seat 72 is fixedly connected to the front and rear sides of the bottom right side of the fall arrester body 1. A first movable rod 73 is movably connected to the inner sides of the first connecting seat 71 and the second connecting seat 72 through a pivot pin. A second movable rod 74 is movably connected to the right side of the first connecting seat 71 through a pivot pin. The other end of the second movable rod 74 is movably connected to the left side of the second connecting seat 72 through a pivot pin. A second guide wheel 5 is movably mounted on the surface of the first movable rod 73, and a first guide wheel 6 is movably mounted on the surface of the second movable rod 74.
[0024] As a technical optimization of this utility model, by setting the connecting mechanism 7, the first connecting seat 71 and the second connecting seat 72 can limit the movement of the first movable rod 73 and the second movable rod 74. The limit movement of the first movable rod 73 and the second movable rod 74 can limit the movement of the second guide wheel 6 and the first guide wheel 5, thereby facilitating the movement of the wire rope 4 on the surface of the first guide wheel 5 and the second guide wheel 6.
[0025] refer to Figure 2 The reinforcement component 8 includes a first support rod 81, and a first arc plate 82 is fixedly connected to the other end of the first support rod 81. The inner wall of the first arc plate 82 is movably connected to the top of the surface of the first guide wheel 5.
[0026] As a technical optimization of this utility model, by setting the reinforcing component 8, the first support rod 81 can fix and limit the first arc plate 82, and the first arc plate 82 can improve the stability of the first guide wheel 5, thus achieving the effect of reinforcement.
[0027] refer to Figure 2 Two second support rods 9 are fixedly connected to the front and rear sides of the bottom of the fall arrestor body 1. The other ends of the two second support rods 9 are fixedly connected to a second arc plate 10. The inner wall of the second arc plate 10 is movably connected to the top of the surface of the second guide wheel 6.
[0028] As a technical optimization of this utility model, by setting a second support rod 9 and a second arc plate 10, the second support rod 9 can fix and limit the second arc plate 10, and the second arc plate 10 can improve the stability of the second guide wheel 6, thus achieving a reinforcement effect.
[0029] refer to Figure 2 Two limiting rings 11 are fixedly connected to the surfaces of the first guide wheel 5 and the second guide wheel 6, and a rubber ring 12 is fixedly connected to the bottom of the fall arrestor body 1.
[0030] As a technical optimization of this utility model, by setting a limiting ring 11 and a rubber ring 12, the limiting ring 11 can limit the movement of the wire rope 4 that is in contact with the surface of the first guide wheel 5 or the second guide wheel 6, and the rubber ring 12 can prevent the wire rope 4 from generating hard friction with the rope outlet at the bottom of the fall arrester body 1.
[0031] refer to Figure 3 The inner walls of the first connecting seat 71 and the second connecting seat 72 are both fixedly connected with rubber strips 13, which are arranged in an L-shape.
[0032] As a technical optimization of this utility model, by setting the rubber wrapping strip 13, hard friction between the steel wire rope 4 and the inner walls of the first connecting seat 71 and the second connecting seat 72 can be avoided.
[0033] The working principle and usage process of this utility model are as follows: When in use, when the other end of the steel wire rope 4 is connected to the safety belt on the user's body, the steel wire rope 4 is in an inclined state. At this time, the surface of the steel wire rope 4 is in contact with the surface of the first guide wheel 5 or the second guide wheel 6. The limiting ring 11 can limit the steel wire rope 4. Therefore, the first guide wheel 5 and the second guide wheel 6 make it convenient for the user to work in front, behind, left and right of the fall arrestor body 1. At the same time, it can avoid the inclined steel wire rope 4 from generating continuous friction with the bottom of the fall arrestor body 1. The first arc plate 82 and the second arc plate 10 can improve the stability of the first guide wheel 5 and the second guide wheel 6. The rubber ring 12 and the rubber wrapping strip 13 can further improve the protection of the steel wire rope 4.
[0034] In summary, this portable adjustable fall arrestor, by setting up a first guide wheel 5 and a second guide wheel 6, can guide the inclined wire rope 4, thus facilitating the user to adjust the wire rope 4 forward, backward, left, and right. This solves the problem of existing fall arrestors where the main body extends with the wire rope and a hook, but the rope outlet at the bottom of the main body lacks an adjustment and guidance structure for the wire rope. Users typically work around the fall arrestor, where the extended wire rope is inclined, causing continuous friction with the outlet as the rope moves, significantly reducing the wire rope's lifespan.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A portable adjustable fall arrestor, comprising a fall arrestor body (1), an upper suspension rope (2), an upper hook (3), and a steel wire rope (4), characterized in that: The upper suspension rope (2) is fixedly installed on the top of the fall arrester body (1), the upper hook (3) is fixedly installed on the other end of the upper suspension rope (2), the end of the steel wire rope (4) near the upper hook (3) is movably installed inside the fall arrester body (1), the front and rear sides of the bottom of the fall arrester body (1) are provided with first guide wheels (5), the left and right sides of the bottom of the fall arrester body (1) are provided with second guide wheels (6), the front and rear sides of the left side of the bottom of the fall arrester body (1) are fixedly connected with connecting mechanisms (7), and the left and right sides of the bottom of the fall arrester body (1) are fixedly connected with reinforcing components (8).
2. The portable adjustable fall arrestor according to claim 1, characterized in that: The connecting mechanism (7) includes a first connecting seat (71). A second connecting seat (72) is fixedly connected to the front and rear sides of the bottom right side of the fall arrester body (1). The inner sides of the first connecting seat (71) and the second connecting seat (72) are movably connected to a first movable rod (73) via a pin. The right side of the first connecting seat (71) is movably connected to a second movable rod (74) via a pin. The other end of the second movable rod (74) is movably connected to the left side of the second connecting seat (72) via a pin. The second guide wheel (6) is movably mounted on the surface of the first movable rod (73). The first guide wheel (5) is movably mounted on the surface of the second movable rod (74).
3. A portable adjustable fall arrestor according to claim 1, characterized in that: The reinforcement component (8) includes a first support rod (81), the other end of which is fixedly connected to a first arc plate (82), and the inner wall of the first arc plate (82) is movably connected to the top of the surface of the first guide wheel (5).
4. A portable adjustable fall arrestor according to claim 1, characterized in that: The front and rear sides of the bottom of the fall arrestor body (1) are fixedly connected to two second support rods (9), and the other ends of the two second support rods (9) are fixedly connected to a second arc plate (10). The inner wall of the second arc plate (10) is movably connected to the top of the surface of the second guide wheel (6).
5. A portable adjustable fall arrestor according to claim 1, characterized in that: Two limiting rings (11) are fixedly connected to the surfaces of the first guide wheel (5) and the second guide wheel (6), and a rubber ring (12) is fixedly connected to the bottom of the fall arrestor body (1).
6. A portable adjustable fall arrestor according to claim 2, characterized in that: The inner walls of the first connecting seat (71) and the second connecting seat (72) are both fixedly connected with rubber strips (13), and the rubber strips (13) are arranged in an L-shape.