Anti-falling electric lifting descent control device
By using a locking assembly with a hook to secure the cover and a spring-loaded design, combined with a detachable one-way input assembly, the problem of the slow-descent device detaching due to accidental activation is solved, achieving higher safety and easier operation, and enhancing the stability and versatility of the equipment.
Patent Information
- Application Number
- CN202423125819.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-04-11
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Commonly available slow-descent devices on the market can become loose due to accidental activation, causing them to detach from the locking mechanism and pose a safety hazard. Furthermore, they are complex to disassemble and assemble.
The locking assembly with hooks to secure the cover, combined with an elastic torsion spring and a detachable one-way input assembly, prevents accidental disengagement. The guide cam and pressure bearing improve ease of operation, and the gearbox is stably connected to the rope reel to prevent single shaft breakage.
It improves the safety and ease of operation of the decelerator, prevents accidental disengagement, reduces wear, and enhances the stability and versatility of the equipment.
Smart Images

Figure CN223654317U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high-altitude equipment technology, and relates to a descent device, particularly a descent device that prevents electric lift from being detached. Background Technology
[0002] Descending devices are now widely used in high-rise buildings for self-rescue by descending or for rescuing trapped people. They can be installed in building windows, balconies, or rooftops, or on aerial fire trucks.
[0003] Commonly available descent devices achieve descent through planetary gear reduction mechanisms or friction between the rope reel and the housing. When loading the rope to open the cover, the fixing device needs to be opened, which makes the disassembly and assembly process complicated. Therefore, descent devices that use torsion springs to control the locking structure have appeared on the market. Since the descent device uses torsion springs to control the locking, it is easy to accidentally touch the lock, causing it to loosen and then the extension and retraction to disengage. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a highly safe, slow-descent, and labor-saving anti-detachment electric lift slow-descent device.
[0005] The purpose of this utility model can be achieved through the following technical solution: a deceleration device for preventing electric lift, characterized in that it includes a deceleration device body with an internal winding coil assembly, the deceleration device body is provided with a movably connected cover, and the cover is provided with a movably connected locking assembly, the locking assembly is provided with a hook, the deceleration device body is provided with a plurality of locking parts for fixing the hook, and the locking assembly is provided with a touch part, and the cover is provided with a mounting hole for the touch part to be offset and guided.
[0006] In the aforementioned anti-detachment electric lifting and descent device, the rope reel assembly is provided with a movable mounting base, the mounting base is provided with a rope reel, the main body of the descent device is provided with a rotatable control handle 24, and the control handle 24 is provided with a guide cam, and the top of the mounting base is provided with a pressure bearing part that abuts against the guide cam.
[0007] In the aforementioned anti-detachment electric lifting slow-down device, an elastic torsion spring is provided between the locking component and the cover.
[0008] In the aforementioned anti-detachment electric lift and descent device, a gearbox is movably connected to one side of the descent device body. The gearbox has an output shaft connected to a rope reel and a power input shaft. The gearbox also has a detachable one-way input component. In the aforementioned anti-detachment electric lift and descent device, the descent device body has a connecting rod for indexing and fixing the gearbox to the mounting base.
[0009] In the aforementioned anti-detachment electric lifting and slowing device, a pressure bearing is provided on the pressure-bearing part.
[0010] In the aforementioned anti-detachment electric lifting decelerator, several guide wheels are provided on the main body of the decelerator.
[0011] In the aforementioned anti-detachment electric lifting and lowering device, the mounting base is provided with a number of centrally symmetrically arranged elastic ratchet teeth, the rope reel is provided with an internal toothed ring symmetrical to the elastic ratchet teeth, and a support spring is provided between the elastic ratchet teeth and the mounting base.
[0012] In the aforementioned anti-detachment electric lifting and lowering device, the cover is provided with a guide groove connected to the mounting hole. In the aforementioned anti-detachment electric lifting and lowering device, the cover has a protruding locking part, the end of which engages with the main body of the lowering device.
[0013] Compared with existing technologies, this anti-detachment electric lift decelerator locks the cover by using a hook, and multiple locking parts effectively prevent the cover from detaching due to accidental contact. The connection between the rope reel and the gearbox prevents the rope reel from detaching due to the breakage of a single shaft, thus providing better safety. The detachable one-way input component increases the input methods, and after disassembly, it can directly drive the input shaft to achieve rope climbing, thus providing good versatility. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the anti-detachment electric lift decelerator.
[0015] Figure 2 This is a schematic diagram of the structure of the anti-detachment electric lift decelerator.
[0016] Figure 3 This is a schematic diagram of the structure of the anti-detachment electric lift decelerator.
[0017] Figure 4 This is a half-section structural diagram of the anti-detachment electric lift decelerator.
[0018] Figure 5 This is a schematic diagram of the structure of the cover of the anti-detachment electric lift decelerator.
[0019] Figure 6 This is a schematic diagram of the structure of the anti-detachment electric lift decelerator.
[0020] Figure 7 This is a schematic diagram of the rope reel of the anti-detachment electric lift and descent device.
[0021] In the diagram, 1. Descending device body; 2. Cover; 3. Guide groove; 4. Touch control; 5. Rope reel; 6. Rope reel assembly; 7. Connecting rod; 8. One-way input assembly; 9. Gearbox; 10. Elastic ratchet; 11. Pressure bearing; 12. Pressure bearing part; 13. Guide cam; 14. Guide wheel; 15. Support spring; 16. Output shaft; 17. Locking assembly; 18. Elastic torsion spring; 19. Snap-fit part; 20. Hook; 21. Locking part; 22. Mounting hole; 23. Mounting base; 24. Control handle; 25. Power input shaft; 26. Internal gear ring. Detailed Implementation
[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0023] like Figure 1 , 2 As shown in Figures 3, 4, 5, 6, and 7, this anti-detachment electric lifting and descent device includes a descent device body 1 with an internally mounted rope reel assembly 6. The descent device body 1 has a movably connected cover 2, and the cover 2 has a movably connected locking assembly 17. The locking assembly 17 has a hook 20. The descent device body 1 has several locking parts 19 for fixing the hook 20, and the locking assembly 17 has a touch control part 4. The cover 2 has a mounting hole 22 for guiding the touch control part 4. In use, the hook 20 contacts and locks with the locking parts 19. To open the cover 2, the touch control part 4 can be moved to unlock it. When the touch control part 4 is accidentally touched and accidentally detaches, the hook 20 engages with the remaining locking parts 19 to prevent detachment caused by accidental touch.
[0024] Preferably, the rope reel assembly 6 is provided with a movable mounting base 23, the mounting base 23 is provided with a rope reel 5, the descent device body 1 is provided with a rotatable control handle 24, and the control handle 24 is provided with a guide cam 13. The top of the mounting base 23 is provided with a pressure bearing part 12 that abuts against the guide cam 13. The guide cam 13 and the control handle 24 form a lever structure, making it easier to control the descent.
[0025] Preferably, an elastic torsion spring 18 is provided between the locking assembly 17 and the cover 2. The elastic torsion spring 18 provides a downward force to the hook 20, which can better complete the locking and allow the hook 20 to move into place more quickly to complete the secondary locking when it is accidentally dislodged.
[0026] Preferably, a gearbox 9 is movably connected to one side of the descent device body 1. The gearbox 9 is equipped with an output shaft 16 connected to the rope reel 5, and a power input shaft 25. The gearbox 9 is also equipped with a detachable one-way input component 8. The gearbox 9 is connected to the rope reel 5 through the input shaft. The detachable one-way input component 8 enables the gearbox 9 to move in one direction through an internal one-way ratchet structure. When power is input, the gearbox 9 and the rope reel assembly 6 deflect together to reduce wear between the rope and the descent device body 1. Rope climbing is achieved by rotating the rope reel 5. The one-way input component 8 does not provide resistance when rotating in the opposite direction to prevent the elastic ratchet 10 from snapping.
[0027] Preferably, the main body 1 of the decelerator is provided with a connecting rod 7 for the rotation and fixing of the gearbox 9 and the mounting base 23. The gearbox 9 and the rope reel assembly 6 are connected to the output shaft 16 through the connecting rod 7 to prevent the rope reel 5 from falling off due to the breakage of one of the shafts.
[0028] Preferably, the pressure bearing 11 is provided on the pressure bearing part 12. The pressure bearing 11 reduces the wear of the pressure bearing part 12 and makes the slow descent more effortless.
[0029] Preferably, a number of guide wheels 14 are provided on the main body 1 of the decelerator.
[0030] Preferably, the mounting base 23 is provided with a plurality of centrally symmetrically arranged elastic ratchet teeth 10, and the rope reel 5 is provided with an inner tooth ring 26 symmetrical to the elastic ratchet teeth 10. Support springs 15 are provided between the plurality of elastic ratchet teeth 10 and the mounting base 23. The centrally symmetrical elastic ratchet teeth 10 make the locking of the rope reel 5 more stable and prevent accidental slippage caused by unilateral locking.
[0031] Preferably, the cover 2 is provided with a guide groove 3 connected to the mounting hole 22, and the guide groove 3 makes the touch part 4 and the locking assembly 17 more stable when moving.
[0032] Preferably, the cover 2 has a protruding locking part 21, the end of which is engaged with the main body 1 of the decelerator.
[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0034] Although this document frequently uses terms such as 1. Depressor body, 2. Cover, 3. Guide groove, 4. Touch control, 5. Rope reel, 6. Rope reel assembly, 7. Connecting rod, 8. One-way input assembly, 9. Gearbox, 10. Elastic ratchet, 11. Pressure bearing, 12. Pressure bearing part, 13. Guide cam, 14. Guide wheel, 15. Support spring, 16. Output shaft, 17. Locking assembly, 18. Elastic torsion spring, 19. Snap-fit part, 20. Hook, 21. Locking part, 22. Mounting hole, 23. Mounting base, 24. Control handle, 25. Power input shaft, 26. Internal gear ring, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. A deceleration device for preventing electric lift and descent, characterized in that, The descent device includes a main body (1) with a winding coil assembly (6) inside. The main body (1) is provided with a cover (2) that is movably connected. The cover (2) is provided with a locking assembly (17) that is movably connected. The locking assembly (17) is provided with a hook (20). The main body (1) is provided with several locking parts (19) for fixing the hook (20). The locking assembly (17) is provided with a touch part (4). The cover (2) is provided with a mounting hole (22) for the touch part (4) to be offset and guided.
2. The anti-detachment electric lift decelerator according to claim 1, characterized in that, The rope reel assembly (6) is provided with a movable mounting base (23), the mounting base (23) is provided with a rope reel (5), the descent device body (1) is provided with a rotatable control handle (24) 24, and the control handle (24) 24 is provided with a guide cam (13). The top of the mounting base (23) is provided with a pressure bearing part (12) that abuts against the guide cam (13).
3. The anti-detachment electric lift decelerator according to claim 1, characterized in that, An elastic torsion spring (18) is provided between the locking assembly (17) and the cover (2).
4. The anti-detachment electric lift decelerator according to claim 1, characterized in that, The main body (1) of the descent device is provided with a gearbox (9) connected to it. The gearbox (9) is provided with an output shaft (16) connected to the rope reel (5), and the gearbox (9) is provided with a power input shaft (25). The gearbox (9) is also provided with a detachable one-way input component (8).
5. The anti-detachment electric lift decelerator according to claim 1, characterized in that, The main body (1) of the decelerator is provided with a connecting rod (7) for the rotation and fixing of the gearbox (9) and the mounting base (23).
6. The anti-detachment electric lift decelerator according to claim 2, characterized in that, The pressure-bearing part (12) is provided with a pressure-bearing bearing (11).
7. The anti-detachment electric lift decelerator according to claim 1, characterized in that, Several guide wheels (14) are provided on the main body (1) of the descent device.
8. The anti-detachment electric lift decelerator according to claim 2, characterized in that, The mounting base (23) is provided with a number of centrally symmetrical elastic ratchet teeth (10), and the rope reel (5) is provided with an internal tooth ring (26) symmetrical to the elastic ratchet teeth (10). Support springs (15) are provided between the elastic ratchet teeth (10) and the mounting base (23).
9. The anti-detachment electric lift decelerator according to claim 1, characterized in that, The cover (2) is provided with a guide groove (3) connected to the mounting hole (22).
10. The anti-detachment electric lift decelerator according to claim 1, characterized in that, The cover (2) has a protruding locking part (21), and the end of the locking part (21) is engaged with the body (1) of the decelerator.