Anti-falling safety device with slow brake device
By introducing a combination of worm gear and air pump into the fall arrestor, a smooth braking of the rope is achieved, solving the problem that existing fall arrestors cannot slow down the descent speed, and improving safety and convenience.
Patent Information
- Application Number
- CN202423304823.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing fall arrestors are unable to effectively slow down the falling speed when hoisted objects accidentally fall, resulting in excessive impact force and potential injury to workers.
A fall arrestor with a slow braking device was designed. It uses a combination of a worm gear mechanism and an air pump to hold the rope with rubber clamps and rollers, and provides additional cushioning through the air pump to achieve smooth braking.
It effectively reduces the risk of injury to workers, provides multiple layers of protection, improves ease of use and safety, and ensures cushioning during a fall to prevent further descent.
Smart Images
Figure CN223818057U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fall arrestor technology, and in particular to a fall arrestor with a slow braking device. Background Technology
[0002] A fall arrestor with a braking mechanism addresses the safety needs of high-altitude operations, the shortcomings of existing fall arrestors, and the innovative design of the braking mechanism. A broken rope fall arrestor is a safety device used to brake and protect against accidental breakage of a wire rope, and it is crucial in high-altitude operations such as construction hoists. However, most existing fall arrestors on the market are instantaneous or eccentric wheel types. These fall arrestors generate a huge instantaneous impact force when the hoisted object falls accidentally, damaging the hoisted object and the overall frame of the equipment.
[0003] With the increasing number of high-altitude operations such as high-rise building and bridge construction, the safety of high-altitude operations has received more and more attention. Although traditional fall arrestors can protect the safety of workers to a certain extent, they still have many shortcomings in practical applications, such as the inability to effectively slow down the falling speed, resulting in excessive impact force and easy injury to workers. Therefore, we propose a fall arrestor with a braking device to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a fall arrestor with a slow braking device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fall arrestor with a braking device includes: a reinforced outer shell, two sliding plates slidably installed inside the reinforced outer shell, a rubber clamping block fixedly installed on one side of each sliding plate, two fixed rods fixedly installed on one side of each sliding plate, rubber rollers fixedly installed on each fixed rod, the two fixed rods respectively positioned above and below the rubber clamping block on the same side, a fixed plate fixedly installed inside the reinforced outer shell, a rotating disk rotatably installed on one side of the fixed plate, two rotating blocks rotatably installed on one side of the rotating disk, a connecting rod rotatably installed on one side of the rotating blocks, a rotating block rotatably installed on one side of the connecting rod, the rotating block rotatably installed on one side of the sliding plate, an installation block fixedly installed on one side of the fixed plate, a braking device assembly disposed within the installation block, and a second buffer assembly disposed at the bottom end of the reinforced outer shell.
[0007] Preferably, the easing braking device assembly includes: a fall sensing element and a motor, the motor being fixedly installed inside the mounting block, a worm gear being fixedly installed at the output end of the mounting block, a worm wheel being rotatably installed inside the mounting block, the worm wheel meshing with the top end of the worm gear, the fall sensing element being fixedly installed inside the mounting block, the fall sensing element being electrically connected to the motor, and a rotating block being fixedly installed on one side of the worm wheel, the rotating block being fixedly connected to a rotating disk.
[0008] Preferably, the second buffer assembly includes: a connecting cylinder and an air pump. The connecting cylinder is fixedly installed at one bottom end of the reinforced outer shell. A fixing plate is fixedly installed inside the connecting cylinder. An air pump is fixedly installed on one side of the reinforced outer shell. A connecting pipe is fixedly installed on one side of the air pump. The connecting pipe is fixedly connected to the fixing plate.
[0009] Preferably, a second reinforced outer shell is rotatably mounted on one side of the first reinforced outer shell, two first rotating rods are fixedly mounted on one side of the first reinforced outer shell, and a second rotating rod is fixedly mounted on one side of the second reinforced outer shell, with the second rotating rod rotatably mounted between the two first rotating rods.
[0010] Preferably, a connecting plate is fixedly installed on one side of the reinforced outer shell, and two screws are threadedly connected to the connecting plate. Both the reinforced outer shell and the connecting plate are provided with threaded holes that match the screws. Two handles are fixedly installed on the reinforced outer shell.
[0011] Preferably, two T-shaped blocks are fixedly installed on one side of the sliding plate, and two connecting strips are fixedly installed on one side of the fixed plate, with two adjacent T-shaped blocks slidably installed on the same connecting strip.
[0012] Preferably, the connecting strip has a sliding T-groove that matches the T-block, the connecting cylinder has an installation groove that matches the fixing plate, and the mounting block has a rotating groove that matches the worm gear.
[0013] In this utility model, a fall arrestor with a slow braking device is described. By rotating two screws, the two screws are disengaged from the connecting plate and the first reinforced shell. Then, the second reinforced shell is rotated, causing the second reinforced shell to rotate and open the entire structure. The entire device is then installed on a rope, which passes through the connecting tube and the fixing plate, then through two rubber clamps and multiple rubber rollers, and finally through the top of the first and second reinforced shells for a fixed connection. The second reinforced shell is then closed, and the structure is fixed by two screws and the connecting plate. In subsequent use, if a fall occurs, a fall sensing element fixedly installed in the mounting block will detect it. After detection, the fall sensing element will activate the motor fixedly installed in the mounting block, causing the motor to drive the worm gear to rotate.
[0014] In this utility model, a fall arrestor with a mild braking device is described. A worm gear drives a worm wheel at its top to rotate. The rotation of the worm wheel drives a rotating block to rotate, which in turn drives a rotating disk to rotate. The rotating disk, in turn, moves a second rotating block, which in turn moves a connecting rod. This connecting rod then moves a first rotating block, causing two sliding plates to move closer together. This, in turn, moves a rubber clamp and a rubber roller closer together, clamping the rope. Simultaneously, an air pump is activated to fill the fixed plate with gas. After completion, the air pump closes the valve, allowing gas to enter the fixed plate, further compressing the rope. The combined effect of these multiple structures provides cushioning and a smooth braking force.
[0015] This utility model has a reasonable structural design. Through the cooperation of multiple structures, it can achieve smooth braking, effectively reducing the risk of injury to workers. The coordinated action of multiple structures ensures that the fall is buffered to prevent further descent, providing multiple protections for workers and improving the convenience and safety of use. Attached Figure Description
[0016] Figure 1 A three-dimensional structural diagram of a fall arrestor with a retardation device proposed in this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of a fall arrestor with a slow braking device proposed in this utility model;
[0018] Figure 3 This is a partial structural cross-sectional view of a fall arrestor with a retardation braking device proposed in this utility model.
[0019] In the diagram: 1. Reinforced outer shell one; 2. Reinforced outer shell two; 3. Connecting plate; 4. Screw; 5. Mounting block; 6. Air pump; 7. Connecting cylinder; 8. Handle; 9. Worm gear; 10. Motor; 11. Worm; 12. Connecting pipe; 13. Fixing plate; 14. Rotating disk; 15. Rotating block; 16. Connecting rod; 17. Rotating block one; 18. Sliding plate; 19. Connecting strip; 20. T-block; 21. Rubber roller; 22. Rotating rod one; 23. Rotating rod two; 24. Fixing rod; 25. Rubber clamp; 26. Rotating block two; 27. Fall sensor element. Detailed Implementation
[0020] 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 the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-3 A fall arrestor with a braking device includes: a reinforced outer shell 1; two sliding plates 18 are slidably installed inside the reinforced outer shell 1; a rubber clamp 25 is fixedly installed on one side of each sliding plate 18; two fixing rods 24 are fixedly installed on one side of each sliding plate 18; rubber rollers 21 are fixedly installed on each fixing rod 24; the two fixing rods 24 are respectively positioned above and below the rubber clamp 25 on the same side; a fixing plate 13 is fixedly installed inside the reinforced outer shell 1; a rotating disk 14 is rotatably installed on one side of the fixing plate 13; two rotating blocks 26 are fixedly installed on one side of the rotating disk 14; a connecting rod 16 is rotatably installed on one side of the rotating blocks 26; a rotating block 17 is rotatably installed on one side of the connecting rod 16; the rotating block 17 is fixedly installed on one side of the sliding plate 18; an installation block 5 is fixedly installed on one side of the fixing plate 13; a braking device assembly is provided inside the installation block 5; and a second buffer assembly is provided at the bottom of the reinforced outer shell 1.
[0022] In this embodiment, the easing braking device assembly includes: a fall sensing element 27 and a motor 10. The motor 10 is fixedly installed in the mounting block 5. A worm gear 11 is fixedly installed at the output end of the mounting block 5. A worm wheel 9 is rotatably installed in the mounting block 5 and meshes with the top end of the worm gear 11. The fall sensing element 27 is fixedly installed in the mounting block 5 and electrically connected to the motor 10. A rotating block 15 is fixedly installed on one side of the worm wheel 9 and is fixedly connected to the rotating disk 14 to realize the easing braking function.
[0023] In this embodiment, the second buffer component includes: a connecting cylinder 7 and an air pump 6. The connecting cylinder 7 is fixedly installed at the bottom of the reinforced outer shell 1. A fixing plate 13 is fixedly installed inside the connecting cylinder 7. An air pump 6 is fixedly installed on one side of the reinforced outer shell 1. A connecting pipe 12 is fixedly installed on one side of the air pump 6. The connecting pipe 12 is fixedly connected to the fixing plate 13 to provide additional buffering effect and reduce the impact force when falling.
[0024] In this embodiment, a second reinforced outer shell 2 is rotatably mounted on one side of the first reinforced outer shell 1. Two rotating rods 22 are fixedly mounted on one side of the first reinforced outer shell 1, and a rotating rod 23 is fixedly mounted on one side of the second reinforced outer shell 2. The rotating rod 23 is rotatably mounted between the two rotating rods 22 to better control the opening and closing of the structure. A connecting plate 3 is fixedly mounted on one side of the first reinforced outer shell 1. Two screws 4 are threadedly connected to the connecting plate 3. Both the second reinforced outer shell 2 and the connecting plate 3 have threaded holes that match the screws 4. Two handles 8 are fixedly mounted on the first reinforced outer shell 1 to make the structure more stable.
[0025] In this embodiment, two T-blocks 20 are fixedly installed on one side of the sliding plate 18, and two connecting strips 19 are fixedly installed on one side of the fixed plate 13. Two adjacent T-blocks 20 are slidably installed on the same connecting strip 19, so that the structure can slide smoothly and accurately. The connecting strip 19 is provided with a sliding T-groove that matches the T-block 20. The connecting cylinder 7 is provided with an installation groove that matches the fixed plate 13. The mounting block 5 is provided with a rotation groove that matches the worm gear 9, so as to better perform the work.
[0026] In this embodiment, during use, the two screws 4 are rotated to detach them from the connecting plate 3 and the first reinforced housing 1. Then, the second reinforced housing 2 is rotated, causing the rotating rod 23 to rotate, thus opening the entire structure. The entire device is then installed onto the rope, which passes through the connecting tube 7 and the fixing plate 13, then through the two rubber clamps 25 and multiple rubber rollers 21, and finally through the tops of the first reinforced housing 1 and the second reinforced housing 2, where a fixed connection is established. The second reinforced housing 2 is then closed, and the structure is secured by the two screws 4 and the connecting plate 3. In subsequent use, if a fall occurs, the fall sensing element 27, fixedly installed in the mounting block 5, will detect it and activate the motor 1, fixedly installed in the mounting block 5. 0. The motor 10 drives the worm gear 11 fixedly installed at its output end to rotate. The worm gear 11 drives the worm wheel 9 meshing at its top to rotate. The rotation of the worm wheel 9 drives the rotating block 15 to rotate, thereby driving the rotating disk 14 to rotate. The rotation of the rotating disk 14 drives the rotating block 26 to move, thereby driving the connecting rod 16 to move. The connecting rod 16 drives the rotating block 17 to move, and at the same time, it drives the two sliding plates 18 to move closer to each other, thereby driving the rubber clamp 25 and the rubber roller 21 to move closer to each other, thereby clamping the rope. At the same time, the air pump 6 is started, allowing the air pump 6 to fill the fixed plate 13 with gas. After completion, the air pump 6 closes the valve, and the gas enters the fixed plate 13, thereby further compressing the rope. The cooperation of multiple structures allows for buffering and provides a smooth braking force.
[0027] The above provides a detailed description of a fall arrestor with a mild braking device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A fall arrestor with a retardant braking device, characterized in that, include: A reinforced outer shell (1) has two sliding plates (18) slidably installed inside it. A rubber clamp (25) is fixedly installed on one side of each sliding plate (18). Two fixing rods (24) are fixedly installed on one side of each sliding plate (18). A rubber roller (21) is fixedly installed on each fixing rod (24). The two fixing rods (24) are respectively positioned above and below the rubber clamp (25) on the same side. A fixing plate (13) is fixedly installed inside the reinforced outer shell (1). A rotating disk (14) is rotatably mounted on one side of the rotating disk (14). Two rotating blocks (26) are fixedly mounted on one side of the rotating disk (14). A connecting rod (16) is rotatably mounted on the rotating block (26). A rotating block (17) is rotatably mounted on one side of the connecting rod (16). The rotating block (17) is fixedly mounted on one side of the sliding plate (18). An installation block (5) is fixedly mounted on one side of the fixed plate (13). A brake damping device assembly is provided inside the installation block (5). A second buffer assembly is provided at the bottom of the reinforced outer shell (1).
2. A fall arrestor with a retardant braking device according to claim 1, characterized in that, The easing braking device assembly includes: a fall sensing element (27) and a motor (10). The motor (10) is fixedly installed in the mounting block (5). A worm gear (11) is fixedly installed at the output end of the mounting block (5). A worm wheel (9) is rotatably installed in the mounting block (5). The worm wheel (9) meshes with the top end of the worm gear (11). The fall sensing element (27) is fixedly installed in the mounting block (5). The fall sensing element (27) is electrically connected to the motor (10). A rotating block (15) is fixedly installed on one side of the worm wheel (9). The rotating block (15) is fixedly connected to the rotating disk (14).
3. A fall arrestor with a retardant braking device according to claim 1, characterized in that, The second buffer assembly includes a connecting cylinder (7) and an air pump (6). The connecting cylinder (7) is fixedly installed at the bottom of the reinforced outer shell (1). A fixing plate (13) is fixedly installed inside the connecting cylinder (7). An air pump (6) is fixedly installed on one side of the reinforced outer shell (1). A connecting pipe (12) is fixedly installed on one side of the air pump (6). The connecting pipe (12) is fixedly connected to the fixing plate (13).
4. A fall arrestor with a retardant braking device according to claim 1, characterized in that, A second reinforced shell (2) is rotatably mounted on one side of the first reinforced shell (1). Two rotating rods (22) are fixedly mounted on one side of the first reinforced shell (1). A rotating rod (23) is fixedly mounted on one side of the second reinforced shell (2). The rotating rod (23) is rotatably mounted between the two rotating rods (22).
5. A fall arrestor with a retardant braking device according to claim 4, characterized in that, A connecting plate (3) is fixedly installed on one side of the first reinforced shell (1). Two screws (4) are threadedly connected to the connecting plate (3). Both the second reinforced shell (2) and the connecting plate (3) have threaded holes that match the screws (4). Two handles (8) are fixedly installed on the first reinforced shell (1).
6. A fall arrestor with a retardant braking device according to claim 3, characterized in that, Two T-shaped blocks (20) are fixedly installed on one side of the sliding plate (18), and two connecting strips (19) are fixedly installed on one side of the fixed plate (13). Two adjacent T-shaped blocks (20) are slidably installed on the same connecting strip (19).
7. A fall arrestor with a retardant braking device according to claim 6, characterized in that, The connecting strip (19) has a sliding T-groove that matches the T-block (20), the connecting cylinder (7) has an installation groove that matches the fixing plate (13), and the mounting block (5) has a rotating groove that matches the worm gear (9).