A fall arrester with high protection

Abstract

The application discloses a high-protection anti-falling device and relates to the technical field of anti-falling devices. The anti-falling device comprises an anti-falling device body, a connecting block fixedly connected to the top of the anti-falling device body, a buffer cylinder fixedly connected to the top of the connecting block, an upper steel wire rope fixedly installed in the anti-falling device body and penetrating through the connecting block and the buffer cylinder, and an upper hook fixedly connected to the upper end of the upper steel wire rope. The buffer cylinder is compressed and deformed to generate buffering when the buffer cylinder is forced to move upward. Meanwhile, the buffer cylinder is pushed to move toward the metal gasket ring to fold the corrugated expansion pipe, so that the second buffer spring at the top of the buffer cylinder is forced to generate buffering. After the first buffering is performed by the buffer cylinder and the second buffer spring, the second buffer spring is compressed to the extreme to push the metal gasket ring to move upward. The first buffer spring above the metal gasket ring in the buffer cylinder is compressed to generate secondary buffering by the upward movement of the metal gasket ring, so that the braking force is directly applied to the worker, and the secondary injury to the worker is reduced.

Description

Technical Field

[0001] This invention relates to the field of fall arrest equipment technology, and specifically to a fall arrester with high protective capabilities. Background Technology

[0002] Fall arresters, also known as speed differential devices, can quickly brake and lock falling objects within a limited distance. They are suitable for cargo hoisting, protecting the lives of ground personnel and preventing damage to the suspended workpiece. Fall arresters utilize the speed difference of falling objects for self-control, and can be used from a high position. The TXS2 series is easy to use: simply pass the nylon rope over a sturdy, blunt-edged structure above, hook the iron hook on the nylon rope into the "n"-shaped loop, and hook the iron hook on the wire rope into the semi-circular loop on the safety harness. Fall arresters are also frequently used in power engineering projects, ensuring the safety of power workers during high-altitude operations on power towers. However, existing technologies have the following problems:

[0003] 1. Most of the existing high-protection fall arresters do not have a buffer structure during use. When a worker falls, the fall arrester is triggered by the rapid pull of the steel cable. This steel cable will generate a sudden braking force on the worker. If this force is too large, it can easily cause secondary injury to the worker.

[0004] 2. Existing high-protection fall arrestors are prone to damage and detachment at the connection between the steel wire rope and the hook during use due to gravity and braking force. Without corresponding protective measures, this can pose a danger to workers. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A highly protective fall arrestor includes a fall arrestor body. A connecting block is fixedly connected to the top of the fall arrestor body, and a buffer cylinder is fixedly connected to the top of the connecting block. An upper steel wire rope passing through the connecting block and the buffer cylinder is fixedly installed inside the fall arrestor body. An upper hook is fixedly connected to the upper end of the upper steel wire rope. A connecting block is fixedly connected to the outside of the upper steel wire rope. The connecting block is located at the lower end of the buffer cylinder. A buffer ring is movably sleeved in the middle of the buffer cylinder. A corrugated telescopic tube is fixedly sleeved on the top of the buffer ring. A second buffer spring located inside the corrugated telescopic tube is fixedly installed on the top of the buffer ring. A metal washer is fixedly connected to the top of the corrugated telescopic tube. The upper end of the second buffer spring is fixedly connected to the bottom of the metal washer. A first buffer spring movably snapped into the inside of the buffer cylinder is fixedly connected to the top of the metal washer. The buffer ring, the metal washer, and the first buffer spring are all movably sleeved on the outside of the upper steel wire rope.

[0007] A further improvement of the technical solution of the present invention is that: a lower telescopic rope is movably installed at the bottom of the main body of the fall arrester, a first connecting rope and a second connecting rope are fixedly connected to the bottom of the lower telescopic rope, the first connecting rope and the second connecting rope are fixedly connected to a fixing block, a lower hook one is fixedly connected to the lower end of the first connecting rope, and a lower hook two is fixedly connected to the lower end of the second connecting rope.

[0008] A further improvement of the technical solution of the present invention is that: an upper fixing buckle is fixedly connected to the front side of the upper hook, a lower fixing buckle is fixedly connected to the front side of the lower hook one and the lower hook two, a fixing plate is fixedly installed on the front side of the fall arrestor body, a slot is opened inside the fixing plate, an abutment plate is movably engaged inside the slot, an elastic pad is fixedly connected to the rear side of the abutment plate, and the elastic pad is disposed between the abutment plate and the fixing plate.

[0009] A further improvement of the technical solution of the present invention is that the connecting block and the buffer ring are arranged in a conical shape that fits together, and the buffer ring is made of rubber.

[0010] A further improvement of the technical solution of the present invention is that: the buffer ring has deformation holes inside, and the deformation holes are distributed in a ring at equal intervals inside the deformation holes.

[0011] A further improvement of the technical solution of the present invention is that: the first connecting rope and the second connecting rope are both made of the same material as the lower telescopic rope, and the first connecting rope and the second connecting rope are integrally formed with the lower telescopic rope.

[0012] A further improvement of the technical solution of the present invention is that the length of the second connecting rope is greater than the length of the first connecting rope.

[0013] A further improvement of the technical solution of the present invention is that both the upper fixing buckle and the lower fixing buckle are L-shaped.

[0014] A further improvement of the technical solution of the present invention is that: both the upper and lower fixing buckles are made of metal, and the abutment plate is magnetic.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0016] 1. This invention provides a highly protective fall arrestor. It comprises a connecting block, a buffer ring, a corrugated telescopic tube, and a second buffer spring. During use, when a worker falls and triggers the emergency braking of the fall arrestor's main body, the upper steel wire rope is stretched by the sudden braking force. This stretches the connecting block upwards, causing it to press against and engage with the buffer ring, which then compresses and deforms to provide cushioning. Simultaneously, the upward movement of the buffer ring pushes it towards a metal washer, causing the corrugated telescopic tube to fold and thus applying force to the second buffer spring at the top of the buffer ring. After the initial cushioning by the buffer ring and the second buffer spring, the second buffer spring is compressed to its maximum extent, pushing the metal washer upwards. This upward movement of the metal washer compresses the first buffer spring located above it within the buffer cylinder, providing secondary cushioning. This reduces the direct braking force acting on the worker, minimizing secondary injury.

[0017] 2. This invention provides a highly protective fall arrestor, which includes a fixed block, a first connecting rope, a lower hook one, and a second connecting rope. The lower telescopic rope is forked below the fixed block, and the first connecting rope, the second connecting rope, and the lower telescopic rope are integrally formed to ensure strength. In use, both the lower hook one and the lower hook two are fixedly installed. When a fall occurs, the first connecting rope and the lower hook one work together with the fall arrestor body to brake. If the connection between the lower hook one and the first connecting rope becomes loose due to prolonged use, the second connecting rope on the other side works with the lower hook two to brake and protect the worker, thus providing secondary protection and improving worker safety.

[0018] 3. This invention provides a highly protective fall arrestor, which is equipped with an upper fixing buckle, a lower fixing buckle, a fixing plate, and a slot. By folding the upper hook, lower hook one, and lower hook two toward the fixing plate, pushing the upper fixing buckle on the front side of the upper hook into the upper slot, and simultaneously pushing the lower fixing buckles on the front side of lower hook one and lower hook two into the lower slot, the abutment plate inside the slot is forced inward. The abutment plate pushes and compresses the elastic pad inward, thereby allowing the upper and lower fixing buckles to enter the slot. By sliding the upper and lower fixing buckles down the slot and locking them in, the elastic pad pushes the abutment plate, which, combined with the magnetism of the abutment plate, fixes them, thus preventing entanglement and facilitating carrying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the highly protective fall arrestor of the present invention;

[0020] Figure 2 This is a schematic diagram of the front structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the buffer cylinder of the present invention;

[0022] Figure 4 This is a schematic diagram of the deformable hole structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the second connecting rope of the present invention;

[0024] Figure 6 This is a schematic diagram of the elastic pad of the present invention.

[0025] In the diagram: 1. Fall arrestor body; 2. Connecting block; 3. Buffer cylinder; 4. Upper steel wire rope; 5. Upper hook; 6. Connecting block; 7. Buffer ring; 8. Corrugated telescopic tube; 9. Second buffer spring; 10. Metal washer ring; 11. First buffer spring; 12. Lower telescopic rope; 13. Fixing block; 14. First connecting rope; 15. Lower hook one; 16. Second connecting rope; 17. Lower hook two; 18. Upper fixing buckle; 19. Lower fixing buckle; 20. Fixing plate; 21. Slot; 22. Abutment plate; 23. Elastic pad; 24. Deformation hole. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] Example 1

[0028] like Figure 1-6 As shown, the present invention provides a highly protective fall arrestor, comprising a fall arrestor body 1, a connecting block 2 fixedly connected to the top of the fall arrestor body 1, a buffer cylinder 3 fixedly connected to the top of the connecting block 2, an upper steel wire rope 4 passing through the connecting block 2 and the buffer cylinder 3 fixedly installed inside the fall arrestor body 1, an upper hook 5 fixedly connected to the upper end of the upper steel wire rope 4, a connecting block 6 fixedly connected to the outside of the upper steel wire rope 4, the connecting block 6 being located at the lower end inside the buffer cylinder 3, a buffer ring 7 movably sleeved at the middle end inside the buffer cylinder 3, a corrugated telescopic tube 8 fixedly sleeved at the top of the buffer ring 7, and a buffer ring 8 fixedly installed at the top of the buffer ring 7. The second buffer spring 9 is located inside the shrink tube 8. A metal washer 10 is fixedly connected to the top of the corrugated telescopic tube 8. The upper end of the second buffer spring 9 is fixedly connected to the bottom of the metal washer 10. A first buffer spring 11 is fixedly connected to the top of the metal washer 10 and is movably snapped into the inside of the buffer cylinder 3. The buffer ring 7, the metal washer 10, and the first buffer spring 11 are all movably sleeved on the outside of the upper wire rope 4. The connecting block 6 and the buffer ring 7 are arranged in a conical shape that fits together. The buffer ring 7 is made of rubber. The buffer ring 7 has a deformation hole 24 inside. The deformation holes 24 are distributed in a ring at equal intervals inside the deformation hole 24.

[0029] In this implementation, by setting up a connecting block 6, a buffer ring 7, a corrugated telescopic tube 8, and a second buffer spring 9, when a worker falls and triggers the emergency braking of the fall arrestor body 1, the upper steel wire rope 4 is stretched by the sudden braking force. The upper steel wire rope 4 drives the connecting block 6 to move upward. The upward movement of the connecting block 6 presses against the buffer ring 7, which is engaged with it, and the buffer ring 7 is compressed and deformed to buffer the fall. At the same time, the upward movement of the buffer ring 7 pushes the buffer ring 7 toward the metal pad ring 10, causing the corrugated telescopic tube 8 to fold, thereby subjecting the second buffer spring 9 at the top of the buffer ring 7 to force and buffer the fall. After the initial buffering by the buffer ring 7 and the second buffer spring 9, the second buffer spring 9 is compressed to its limit, pushing the metal pad ring 10 to move upward. The upward movement of the metal pad ring 10 compresses the first buffer spring 11 located in the buffer cylinder 3 above it for secondary buffering, thereby reducing the braking force directly acting on the worker and reducing secondary injury to the worker.

[0030] Example 2

[0031] like Figure 1-6 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, a lower telescopic rope 12 is movably installed at the bottom of the fall arrestor body 1. A first connecting rope 14 and a second connecting rope 16 are fixedly connected to the bottom of the lower telescopic rope 12. A fixing block 13 is fixedly connected to the outside of the lower telescopic rope 12, the first connecting rope 14, and the second connecting rope 16. A lower hook 15 is fixedly connected to the lower end of the first connecting rope 14, and a lower hook 2 17 is fixedly connected to the lower end of the second connecting rope 16. The first connecting rope 14 and the second connecting rope 16 are made of the same material as the lower telescopic rope 12, and the first connecting rope 14 and the second connecting rope 16 are integrally formed with the lower telescopic rope 12. The length of the second connecting rope 16 is greater than the length of the first connecting rope 14.

[0032] In this embodiment, a fixing block 13, a first connecting rope 14, a lower hook 15, and a second connecting rope 16 are provided. The lower telescopic rope 12 is forked below the fixing block 13. The first connecting rope 14, the second connecting rope 16, and the lower telescopic rope 12 are integrally formed to ensure strength. During use, both the lower hook 15 and the lower hook 17 are fixedly installed. In the event of a fall, the first connecting rope 14 and the lower hook 15 work together with the fall arrestor body 1 to brake the fall arrestor. When the connection between the lower hook 15 and the first connecting rope 14 becomes loose due to prolonged use, the second connecting rope 16 on the other side works with the lower hook 17 to brake and protect the worker, thus providing secondary protection and improving the safety of the worker.

[0033] Example 3

[0034] like Figure 1-6As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, an upper fixing buckle 18 is fixedly connected to the front side of the upper hook 5, and a lower fixing buckle 19 is fixedly connected to the front side of the lower hook 15 and the lower hook 27. A fixing plate 20 is fixedly installed on the front side of the fall arrestor body 1. A slot 21 is opened inside the fixing plate 20. An abutment plate 22 is movably engaged inside the slot 21. An elastic pad 23 is fixedly connected to the rear side of the abutment plate 22. The elastic pad 23 is disposed between the abutment plate 22 and the fixing plate 20. The upper fixing buckle 18 and the lower fixing buckle 19 are both L-shaped. The upper fixing buckle 18 and the lower fixing buckle 19 are both made of metal, and the abutment plate 22 is magnetic.

[0035] In this embodiment, by providing an upper fixing buckle 18, a lower fixing buckle 19, a fixing plate 20, and a slot 21, the upper hook 5, lower hook one 15, and lower hook two 17 are folded toward the fixing plate 20. The upper fixing buckle 18 on the front side of the upper hook 5 is pushed into the upper slot 21, and the lower fixing buckle 19 on the front side of the lower hook one 15 and lower hook two 17 is pushed into the lower slot 21. This causes the abutment plate 22 inside the slot 21 to move inward under force. The abutment plate 22 pushes the compression elastic pad 23 inward, thereby allowing the upper fixing buckle 18 and lower fixing buckle 19 to enter the slot 21. The upper fixing buckle 18 and lower fixing buckle 19 slide down the slot 21 and are snapped in. The elastic pad 23 pushes the abutment plate 22, which is then fixed by the magnetism of the abutment plate 22, thus preventing tangling and facilitating carrying.

[0036] The working principle of this highly protective fall arrestor will be explained in detail below.

[0037] like Figure 1-6As shown, by pushing the upper fixing buckle 18 on the front side of the upper hook 5 into the upper slot 21, and simultaneously pushing the lower fixing buckles 19 on the front side of the lower hook 15 and lower hook 27 into the lower slot 21, the abutment plate 22 inside the slot 21 is forced to move inward. The abutment plate 22 pushes the compression elastic pad 23 inward, thereby allowing the upper fixing buckle 18 and lower fixing buckle 19 to enter the slot 21. By sliding the upper fixing buckle 18 and lower fixing buckle 19 into the slot 21, the elastic pad 23 pushes the abutment plate 22, which is then fixed in place by the magnetism of the abutment plate 22. In use, both the lower hook 15 and lower hook 27 are fixedly installed. In the event of a fall, the first connecting rope 14 and the lower hook 15 work together with the fall arrestor body 1 to brake. When the connection between the lower hook 15 and the first connecting rope 14 becomes loose due to prolonged use, the second connecting rope on the other side... The connecting rope 16, together with the lower hook 17, provides braking protection for the worker, thus providing secondary protection. When the emergency braking of the fall arrestor body 1 is triggered during a fall, the upper steel wire rope 4 is stretched due to the sudden braking force. The upper steel wire rope 4 drives the connecting block 6 to move upward. The upward movement of the connecting block 6 presses against the buffer ring 7, which is engaged with it, and causes it to move upward. The upward movement of the buffer ring 7 compresses and deforms, thus providing cushioning. At the same time, the upward movement of the buffer ring 7 pushes the buffer ring 7 toward the metal pad ring 10, causing the corrugated telescopic tube 8 to fold, thereby causing the second buffer spring 9 at the top of the buffer ring 7 to be subjected to force for cushioning. After the initial cushioning by the buffer ring 7 and the second buffer spring 9, the second buffer spring 9 is compressed to its limit, pushing the metal pad ring 10 upward. The upward movement of the metal pad ring 10 compresses the first buffer spring 11 located in the buffer cylinder 3 above it, providing secondary cushioning, thereby reducing the braking force directly acting on the worker.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A highly protective fall arrestor, comprising a fall arrestor body (1), characterized in that: A connecting block (2) is fixedly connected to the top of the fall arrestor body (1), and a buffer cylinder (3) is fixedly connected to the top of the connecting block (2). An upper steel wire rope (4) passing through the connecting block (2) and the buffer cylinder (3) is fixedly installed inside the fall arrestor body (1). An upper hook (5) is fixedly connected to the upper end of the upper steel wire rope (4). A connecting block (6) is fixedly connected to the outside of the upper steel wire rope (4). The connecting block (6) is located at the lower end inside the buffer cylinder (3). A buffer ring (7) is movably sleeved at the middle end inside the buffer cylinder (3). A corrugated ring is fixedly sleeved on the top of the buffer ring (7). The top of the telescopic tube (8) is fixedly installed with a second buffer spring (9) located inside the corrugated telescopic tube (8). The top of the corrugated telescopic tube (8) is fixedly connected with a metal washer (10). The upper end of the second buffer spring (9) is fixedly connected to the bottom of the metal washer (10). The top of the metal washer (10) is fixedly connected with a first buffer spring (11) that is movably snapped into the buffer cylinder (3). The buffer tube (7), the metal washer (10), and the first buffer spring (11) are all movably sleeved on the outside of the upper wire rope (4). The bottom of the fall arrestor body (1) is movably installed with a lower telescopic rope (12). The bottom of the lower telescopic rope (12) is fixedly connected with a first connecting rope (14) and a second connecting rope (16). The lower telescopic rope (12), the first connecting rope (14) and the second connecting rope (16) are fixedly connected with a fixing block (13). The lower end of the first connecting rope (14) is fixedly connected with a lower hook one (15), and the lower end of the second connecting rope (16) is fixedly connected with a lower hook two (17). The upper hook (5) is fixedly connected to the front side with an upper fixing buckle (18), the lower hook one (15) and the lower hook two (17) are fixedly connected to the front side with a lower fixing buckle (19), the front side of the fall arrestor body (1) is fixedly installed with a fixing plate (20), the inside of the fixing plate (20) is provided with a slot (21), the inside of the slot (21) is movably engaged with an abutment plate (22), the rear side of the abutment plate (22) is fixedly connected with an elastic pad (23), the elastic pad (23) is disposed between the abutment plate (22) and the fixing plate (20).

2. The highly protective fall arrester according to claim 1, characterized in that: The connecting block (6) and the buffer ring (7) are arranged in a conical shape that fits together, and the buffer ring (7) is made of rubber.

3. A highly protective fall arrestor according to claim 2, characterized in that: The buffer ring (7) has a deformation hole (24) inside, and the deformation hole (24) is distributed in a ring at equal intervals inside the deformation hole (24).

4. A highly protective fall arrestor according to claim 1, characterized in that: The first connecting rope (14) and the second connecting rope (16) are made of the same material as the lower telescopic rope (12), and the first connecting rope (14) and the second connecting rope (16) are integrally formed with the lower telescopic rope (12).

5. A highly protective fall arrestor according to claim 4, characterized in that: The length of the second connecting rope (16) is greater than the length of the first connecting rope (14).

6. A highly protective fall arrestor according to claim 1, characterized in that: Both the upper fixing buckle (18) and the lower fixing buckle (19) are L-shaped.

7. A highly protective fall arrestor according to claim 6, characterized in that: The upper fixing buckle (18) and the lower fixing buckle (19) are both made of metal, and the abutment plate (22) is magnetic.

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