Anti-falling device capable of being recovered at slow speed

Abstract

The anti-falling device is provided with an anti-falling assembly capable of winding a safety rope and preventing falling, a guide piece is arranged on the outer edge of the anti-falling assembly, a guide hole is formed in the outer edge wall of the guide piece, and a retarding column which deviates from the guide hole and abuts against the safety rope is arranged in the guide piece. The retarding column and the guide hole cooperate to form a deceleration area in the guide piece, and the deceleration area can increase the friction force between the retarding column and the safety rope so as to reduce the passing speed of the safety rope. The problem that in the prior art, due to the fact that the rope winding speed of an anti-falling device is too high, using of operators is affected is solved.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology, specifically to a fall protection device that can be slowly retrieved. Background Technology

[0002] In high-altitude operations, when workers use safety rings to climb towers, they must manually organize and store the safety ropes before and after the climb. This process not only consumes a significant amount of the workers' time and energy, increasing their workload unnecessarily, but also poses a significant safety risk. Furthermore, improperly organized safety ropes and self-locking components, if left hanging freely at a height, can easily become stuck in gaps or joints in the tower structure, seriously threatening the lives of the workers.

[0003] Currently, most fall protection products on the market achieve automatic retraction by controlling the rope winding, relying on the elastic potential energy stored in the coil spring. However, in actual operation, existing common rope retraction devices often suffer from excessive winding force generated by the coil spring, making it difficult to effectively control the rope winding speed, frequently resulting in excessively fast winding. This excessively fast rope winding speed not only easily generates large tensile forces instantaneously, causing direct personal injury to workers, such as loss of balance or strains, but also affects the smoothness of the worker's operation to some extent. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the excessively fast rope winding speed of existing fall arrest devices affects the use by workers, and to provide a fall arrest device that can be slowly retrieved.

[0005] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a slow-recovery anti-fall device, which has an anti-fall component capable of winding up a safety rope and preventing falls, a guide member at the outer edge of the anti-fall component, a guide hole on the outer edge wall of the guide member, and a slowing column inside the guide member that deviates from the guide hole and presses against the safety rope.

[0006] The deceleration post and the guide hole work together to form a deceleration zone within the guide member. The deceleration zone increases the friction between the deceleration post and the safety rope, thereby reducing the speed at which the safety rope passes through.

[0007] As a further optimization of the fall arrestor device of this utility model that can be slowly retrieved: the slowing column is provided with an auxiliary component, which can convert the sliding friction between the slowing column and the safety rope into rolling friction.

[0008] As a further optimization of the fall prevention device that can be slowly recovered according to this utility model: the auxiliary component includes a slowing wheel that is rotatably mounted on the slowing column, and the surface of the slowing column is roughened.

[0009] As a further optimization of the fall arrestor device of this utility model that can be slowly retrieved: the deceleration wheel is made of elastic material, and negative pressure holes are evenly opened on the surface of the deceleration wheel, and the inner diameter of the negative pressure holes is smaller than the outer diameter of the safety rope.

[0010] As a further optimization of the fall prevention device that can be slowly recovered according to this utility model: the surface of the slowing wheel is uniformly provided with multiple raised strips.

[0011] As a further optimization of the fall arrest device of this utility model that can be slowly retrieved: the safety rope passes through the guide hole and is fixedly connected to a movable hook, and the fall arrest component is provided with a fixed hook.

[0012] As a further optimization of the slow-recoverable fall arrest device of this utility model: the guide component includes a guide shell, and multiple connecting posts are fixed on both axial sides of the guide shell facing the center of the safety rope of the fall arrest component. The multiple connecting posts cooperate with the connecting holes opened on the outer shell of the fall arrest component to fix the guide shell and the fall arrest component together.

[0013] As a further optimization of the fall protection device that can be slowly recovered according to this utility model: the guide shell is provided with a limiting rail with corresponding guide holes and slowing columns, and the limiting rail is arranged in a curved shape.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention, through the strategic placement of the guide hole and the deceleration post, ensures that when the safety rope enters the fall arrest component through the guide hole, it is subjected to pressure from the deceleration post. The coordinated action of the deceleration post and the guide hole cleverly creates a deceleration zone. Within this zone, friction occurs between the safety rope and the surfaces of the deceleration post and the guide hole, effectively reducing the rope's travel speed. This significantly slows down the rate at which the fall arrest component winds up the rope, preventing operational inconvenience caused by excessively fast winding speeds. This greatly enhances safety and convenience during operation, making it easier for workers to use the fall arrest device.

[0016] This invention effectively reduces the hard friction between the safety rope and the deceleration column by incorporating a reduction wheel in the auxiliary components. The reduction wheel cleverly transforms the originally direct hard friction into friction between the deceleration wheel and the deceleration column, and sliding friction between the deceleration wheel and the safety rope. After this transformation, on the one hand, it avoids damage to the safety rope due to excessive hard friction while maintaining the deceleration effect of the safety rope winding; on the other hand, it greatly reduces the possibility of the safety rope being damaged due to friction, thereby extending the service life of the safety rope and ensuring the reliability and stability of the fall arrestor in actual use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0019] Figure 3 This is a front view structural diagram of the present invention;

[0020] The markings in the diagram are: 1. Fall arrestor assembly; 2. Guide component; 201. Guide shell; 202. Connecting post; 203. Connecting hole; 3. Safety rope; 4. Movable hook; 5. Fixed hook; 6. Decelerating post; 7. Limiting rail; 8. Auxiliary component; 801. Decelerating wheel; 802. Negative pressure hole; 803. Raised strip; 9. Guide hole. Detailed Implementation

[0021] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0022] <Example 1>

[0023] like Figure 1 and Figure 3 As shown, a slow-retrieval fall arrestor includes a fall arrestor component 1 with a safety rope 3 winding function. A guide component 2 is configured on this fall arrestor component 1. The guide component 2 precisely guides the safety rope 3, facilitating its smooth entry into the fall arrestor component 1 for winding, or its smooth pull-out from the component. Furthermore, it acts as a sturdy barrier, tightly sealing the fall arrestor component 1 and effectively preventing the intrusion of rainwater, dust, and other impurities. This significantly reduces the risk of damage to the torsion spring structure due to impurities, effectively ensuring the stable performance of the fall arrestor component 1.

[0024] The guide component 2 is mainly composed of a guide shell 201. A guide hole 9, offset from the winding center of the fall arrestor assembly 1, is formed at the outer edge of the guide shell 201. Multiple connecting posts 202 are evenly and firmly fixed on both sides of the guide shell 201 facing the axial direction of the winding structure of the fall arrestor assembly 1. These connecting posts 202 perfectly match the pre-drilled connecting holes 203 on the fall arrestor assembly 1, like an intricate mortise and tenon joint, tightly fixing the guide shell 201 and the fall arrestor assembly 1 together, ensuring the stability of the overall structure.

[0025] The guide housing 201 contains a deceleration post 6 offset from the guide hole 9. The deceleration post 6 presses against the safety rope 3, causing the safety rope 3 to be wound up by the fall arrest component 1 in a bent state. When the safety rope 3 passes through the guide member 2 and travels into the fall arrest component 1, the deceleration post 6 presses against the safety rope 3, forming a highly efficient deceleration zone in conjunction with the guide member 2. Within this zone, the friction between the safety rope 3 and the deceleration post 6 is significantly increased due to the strong pressure from the deceleration post 6. This increased friction acts like a brake on the rapidly winding safety rope 3, effectively reducing the speed at which the torsion spring structure pulls the safety rope 3, providing a solid and reliable safety aid for workers when winding and using the safety rope 3, and ensuring safety and stability during operation. Preferably, the guide hole 9 on the guide member 2 is not directly aligned with the winding center of the fall arrest component 1, but is offset, further increasing the friction between the deceleration post 6 and the safety rope 3, thus further reducing the speed at which the safety rope 3 is wound up by the fall arrest component 1.

[0026] The guide housing 201 is also equipped with a limiting rail 7 corresponding to the guide post. On the one hand, the limiting rail 7 acts like steel bars in a building, enhancing the structural strength of the guide housing 201 and making it more robust and durable when subjected to external forces. On the other hand, the limiting rail 7 is curved, which further enhances the blocking effect against impurities, like putting a thicker protective layer on the fall arrestor 1, more effectively preventing the entry of rainwater, dust and other impurities, thereby further reducing the possibility of damage to the torsion spring structure due to the intrusion of impurities.

[0027] An auxiliary component 8 is rotatably mounted on the deceleration column 6. This auxiliary component 8 includes a deceleration wheel 801 rotatably mounted on the deceleration column 6. The design of the deceleration wheel 801 is ingenious. It successfully transforms the originally relatively harsh sliding friction between the deceleration column 6 and the safety rope 3 into smoother rolling friction, thereby achieving a deceleration effect on the safety rope 3. At the same time, it cleverly transfers some of the hard friction between the deceleration column 6 and the inner wall of the deceleration wheel 801. Specifically, the surface of the deceleration column 6 is roughened. This ingenious transformation reduces the wear of the safety rope 3 caused by direct hard friction with the deceleration column 6 to a certain extent. In other words, while effectively controlling the winding speed of the safety rope 3, it greatly extends the service life of the safety rope 3 and significantly improves the reliability of the entire fall arrest device.

[0028] Furthermore, the deceleration column 6 is made of a special elastic material, and multiple negative pressure holes 802 are evenly distributed around its outer perimeter. The inner diameter of the negative pressure holes 802 is smaller than the outer diameter of the safety rope 3. When the safety rope 3 is wound and tightened by the fall arrest component 1, the air in the negative pressure holes 802 is quickly expelled, making the negative pressure holes 802 act like miniature suction cups, which can attract the safety rope 3 to a certain extent. This attraction further slows down the winding speed of the safety rope 3, adding a more reliable guarantee for the slow retrieval of the safety rope 3, making the fall arrest device exhibit higher safety and practicality in actual use.

[0029] <Example 2>

[0030] like Figure 2 and Figure 3 As shown, this embodiment is basically the same as Embodiment 1. The difference is that the structure of the deceleration wheel 801 included in the auxiliary component 8 is different. Specifically, several raised strips 803 are evenly distributed on the outer periphery of the deceleration wheel 801. During the operation of the deceleration wheel 801, these raised strips 803 strictly follow a specific pattern and orderly change the pressure on the safety rope 3, thereby accurately and orderly adjusting the friction between the safety rope 3 and the deceleration wheel 801. This effectively slows down the speed at which the safety rope 3 is pulled into the fall arrest device.

[0031] Furthermore, when the safety rope 3 is wound up inside the fall arrestor assembly 1, it exhibits a unique, stuttering winding pattern. This stuttering winding method provides workers with a more flexible and user-friendly operating experience. Workers can more freely and conveniently decide whether to continue winding the safety rope 3 according to their actual needs, truly achieving flexible and controllable operation, further enhancing the convenience and operability of the fall arrestor in practical use scenarios.

[0032] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A slow-recoverable fall arrestor having a fall arrestor assembly (1) capable of winding up a safety rope (3) and preventing fall, characterized in that: The fall arrestor (1) is provided with a guide (2) at its outer edge. A guide hole (9) is provided on the outer edge wall of the guide (2). A deceleration column (6) is provided inside the guide (2) to deviate from the guide hole (9) and press against the safety rope (3). The deceleration post (6) and the guide hole (9) work together to form a deceleration zone in the guide member (2). The deceleration zone can increase the friction between the deceleration post (6) and the safety rope (3) to reduce the speed of the safety rope (3).

2. The fall arrestor capable of slow recovery as described in claim 1, characterized in that: The deceleration column (6) is provided with an auxiliary component (8), which can convert the sliding friction between the deceleration column (6) and the safety rope (3) into rolling friction.

3. The fall arrestor capable of slow recovery as described in claim 2, characterized in that: The auxiliary component (8) includes a retarder wheel (801) rotatably mounted on the retarder column (6), and the surface of the retarder column (6) is rough.

4. The fall arrestor capable of slow recovery as described in claim 3, characterized in that: The deceleration wheel (801) is made of elastic material, and negative pressure holes (802) are uniformly opened on the surface of the deceleration wheel (801), and the inner diameter of the negative pressure hole (802) is smaller than the outer diameter of the safety rope (3).

5. The fall arrestor capable of slow recovery as described in claim 3, characterized in that: The surface of the deceleration wheel (801) is uniformly provided with multiple raised strips (803).

6. The fall arrestor capable of slow recovery as described in claim 1, characterized in that: The safety rope (3) passes through the guide hole (9) and is fixedly connected to the movable hook (4), and the fall arrestor (1) is provided with a fixed hook (5).

7. The fall arrestor capable of slow recovery as described in claim 1, characterized in that: The guide component (2) includes a guide shell (201). Multiple connecting posts (202) are fixed on both sides of the guide shell (201) facing the center of the safety rope (3) of the fall arrest component (1). The multiple connecting posts (202) cooperate with the connecting holes (203) opened on the outer shell of the fall arrest component (1) to fix the guide shell (201) and the fall arrest component (1) together.

8. The fall arrestor capable of slow recovery as described in claim 7, characterized in that: The guide shell (201) is provided with a limiting rail (7) corresponding to the guide hole (9) and the deceleration column (6), and the limiting rail (7) is curved.

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