Safety escape slow descending device
By introducing friction blocks and extrusion columns into the escape descent device and combining the limit structure, the problem of the escape personnel losing their fall caused by forgetting to pull the descent handle is solved, and a safe and uniform descent effect is achieved, improving the safety and convenience of the escape equipment.
Patent Information
- Application Number
- CN202421850836.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-01
AI Technical Summary
During the use of the existing escape slowdown device, the escapee may forget to pull the slowdown handle due to nervousness, causing it to fall directly, which poses a safety hazard.
A safe escape and slow-down device is designed. By setting the structure of the friction block and the extruded column, the slow-down rope slowly drops when used. The coordination between the movable grip and the fixed grip is used, and the downward speed is controlled by the friction force between the friction block and the roller, and the sliding connection between the limit column and the limit block is combined to achieve a uniform speed drop.
The slow and uniform descent speed during the escape process is achieved, the risk of direct fall is avoided, and the safety and convenience of the escape process is improved.
Smart Images
Figure CN223158719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of emergency escape equipment, in particular to a safe escape slow-descent device. Background Art
[0002] An escape descent device, consisting of a hook, sling, and rope, is a safety rescue device that allows a person to slowly descend along a rope. It can be installed using specialized mounting hardware in building windows, balconies, or rooftops. It can also be mounted on fire trucks to rescue victims from high-rise fires. To address this passive situation, several manufacturers and research institutions have actively researched diverse rescue and escape technologies, resulting in some promising advances in recent years. The escape descent device is one such technology.
[0003] The existing escape descender is a manually controlled descent speed. However, during the descent, the escapee may forget to pull the deceleration handle due to nervousness, causing the escapee to fall directly and injure himself. This is inconvenient to use. Therefore, a safe escape descent device is proposed to solve the above problem. Utility Model Content
[0004] In response to the deficiencies in the prior art, the utility model provides a safe escape descent device, which has the advantages of being able to slowly slide when used for escape, ensuring a stable descent at a uniform speed, and avoiding falling as much as possible. It solves the problem that the existing escape descent device manually controls the descent speed, but during the descent, the escapee may forget to pull the deceleration handle due to nervousness, causing the escapee to fall directly and injure himself, which is inconvenient to use.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a safe escape slow descent device, comprising a retarder box, a fixed block fixedly connected to the interior of the retarder box, a slow descent rope passing through the interior of the fixed block, a roller provided inside the retarder box, and a deceleration structure provided inside the retarder box;
[0006] The deceleration structure includes a fixed handle, which is fixedly connected to the outer surface of the deceleration box, a movable handle hinged on the top of the fixed handle, a movable plate hinged on the outer surface of the movable handle, a friction plate fixedly connected to the top of the movable plate, an extrusion column fixedly connected to the top of the movable plate, a block fixedly connected to the inside of the deceleration box, a spring fixedly connected to the movable plate, and the bottom of the spring fixedly connected to the fixed block.
[0007] Furthermore, a support rod is fixedly connected to the outer surface of the fixed block. An auxiliary wheel is rotatably connected to the inside of the speed reducer box. The descending rope is located on the outer surface of the auxiliary wheel. A winding disc is arranged at the top of the descending rope. An elastic strip is wound inside the winding disc. A collar is fixedly connected to the circumferential surface of the winding disc.
[0008] Furthermore, a rotating column is arranged inside the fixed grip. The movable grip is hinged to the fixed grip through the rotating column. A sliding groove is formed inside the speed reducer box. The movable grip is slidably connected to the inner wall of the speed reducer box.
[0009] Furthermore, an arc-shaped groove is formed inside the friction block. An anti-slip groove is formed inside the stop block. The stop block is slidably connected to the extrusion column.
[0010] Furthermore, a limiting column is fixedly connected to the outer surface of the fixed block. A limiting block is fixedly connected to the inner wall of the speed reducer box. The movable plate is slidably connected to the limiting column and the limiting block respectively.
[0011] Furthermore, a groove is formed inside the movable plate. The movable plate is slidably connected to the limiting column through the groove.
[0012] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0013] 1. For this safety escape descending device, when the speed reducer box is used in cooperation with the descending rope, the descending rope can be wound and installed on the outer surfaces of the auxiliary wheel and the roller as shown in the figure. Then, when in use, press the movable grip to drive the movable plate under the condition of the limiting column and the limiting block, so that the movable plate drives the friction block to fit and rub against the roller for speed reduction, and the extrusion column is used in cooperation with the stop block to ensure that the speed of the speed reducer box is uniform during descent, so as to achieve slow descent during escape installation.
[0014] 2. For this safety escape descending device, by providing the friction block and the extrusion column, it is ensured that when the descending rope is in use, the speed reducer box can slowly descend to ensure the safe landing of the user. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is the main cross-sectional view of the structure of the present utility model;
[0016] Figure 2 It is the partial top view of the structure of the present utility model;
[0017] Figure 3 It is the front view of the structure of the present utility model.
[0018] In the figure: 1, speed reducer; 2, fixed block; 3, slow-down rope; 4, auxiliary wheel; 5, roller; 6, fixed grip; 7, movable grip; 8, movable plate; 9, friction block; 10, extrusion column; 11, stop block; 12, spring; 13, limit post; 14, limit block; 15, support rod; 16, winding disc; 17, collar. Detailed implementation manners
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0020] Please refer to Figures 1 to 3 , a safety escape slow-down device in this embodiment includes a speed reducer 1. A fixed block 2 is fixedly connected inside the speed reducer 1. A support rod 15 is fixedly connected to the outer surface of the fixed block 2. A slow-down rope 3 passes through the inside of the fixed block 2. An auxiliary wheel 4 is rotatably connected inside the speed reducer 1. The slow-down rope 3 is located on the outer surface of the auxiliary wheel 4. A winding disc 16 is arranged at the top of the slow-down rope 3. An elastic coil is wound inside the winding disc 16. A collar 17 is fixedly connected to the circumferential surface of the winding disc 16.
[0021] A roller 5 is arranged inside the speed reducer 1, and a speed reduction structure is arranged inside the speed reducer 1; the speed reduction structure includes a fixed grip 6, the fixed grip 6 is fixedly connected to the outer surface of the speed reducer 1. The top of the fixed grip 6 is hinged with a movable grip 7. A sliding groove is opened inside the speed reducer 1. The movable grip 7 is slidably connected to the inner wall of the speed reducer 1. A rotating column is arranged inside the fixed grip 6. The movable grip 7 is hinged to the fixed grip 6 through the rotating column.
[0022] A movable plate 8 is hinged to the outer surface of the movable grip 7. A friction plate 9 is fixedly connected to the top of the movable plate 8. An extrusion column 10 is fixedly connected to the top of the movable plate 8. A stop block 11 is fixedly connected inside the speed reducer 1. An arc-shaped groove is opened inside the friction block 9. An anti-slip groove is opened inside the stop block 11. The stop block 11 is slidably connected to the extrusion column 10.
[0023] A spring 12 is fixedly connected to the movable plate 8. The bottom of the spring 12 is fixedly connected to the fixed block 2. A limit post 13 is fixedly connected to the outer surface of the fixed block 2. A groove is opened inside the movable plate 8. The movable plate 8 is slidably connected to the limit post 13 through the groove. A limit block 14 is fixedly connected to the inner wall of the speed reducer 1. The movable plate 8 is slidably connected to the limit post 13 and the limit block 14 respectively.
[0024] In this embodiment, by providing the friction block 9 and the extrusion column 10, when the slow-down rope 3 is in use, the slow-down box 1 can descend slowly, ensuring the safe landing of the user.
[0025] In this embodiment, by using the movable grip 7 and the fixed grip 6 in combination, the effect of tightening the speed reduction is better. Moreover, since the slow-down rope 3 is wound multiple times, the contact area is wider and the friction force is greater, thereby enhancing the safety of use.
[0026] In this embodiment, when the first person's slow-down box 1 reaches downstairs, during the process, when the slow-down rope 3 rolls, it will cause the elastic winding of the elastic scroll. After the person takes off the slow-down box 1, due to the elastic rebound of the elastic scroll without the influence of gravity, the slow-down rope 3 will be automatically wound up, and then the slow-down box 1 will automatically rise, facilitating the continuous use of the people upstairs.
[0027] The working principle of the above embodiment is as follows:
[0028] For this safety escape slow-down device, when the slow-down box 1 is used in cooperation with the slow-down rope 3, the slow-down rope 3 can be wound and installed on the outer surfaces of the auxiliary wheel 4 and the roller 5 as shown in the figure. Then, when in use, pressing the movable grip 7 drives the movable plate 8 under the condition of the limit post 13 and the limit block 14, so that the movable plate 8 drives the friction block 9 to fit and rub against the roller 5 for speed reduction, while the extrusion column 10 is used in cooperation with the stop block 11 to ensure that the speed of the slow-down box 1 is uniform during descent, thereby achieving a slow descent during emergency escape.
[0029] It should be noted that the standard parts used in the application can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the mature bolt, rivet, welding and other conventional means in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art; in addition, the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the well-known prior art of those skilled in the art.
[0030] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A safety escape descent device, comprising a speed reduction box (1), characterized in that: A fixed block (2) is fixedly connected inside the speed reducer box (1). A speed reduction rope (3) passes through the inside of the fixed block (2). A roller (5) is arranged inside the speed reducer box (1). A speed reduction structure is arranged inside the speed reducer box (1). The speed reduction structure includes a fixed grip (6). The fixed grip (6) is fixedly connected to the outer surface of the speed reducer box (1). The top of the fixed grip (6) is hinged with a movable grip (7). The outer surface of the movable grip (7) is hinged with a movable plate (8). A friction block (9) is fixedly connected to the top of the movable plate (8). An extrusion column (10) is fixedly connected to the top of the movable plate (8). A stop block (11) is fixedly connected inside the speed reducer box (1). A spring (12) is fixedly connected to the movable plate (8). The bottom of the spring (12) is fixedly connected to the fixed block (2).
2. The safety escape device according to claim 1, characterized in that: A support rod (15) is fixedly connected to the outer surface of the fixed block (2). An auxiliary wheel (4) is rotatably connected inside the speed reducer box (1). The speed reduction rope (3) is located on the outer surface of the auxiliary wheel (4). A winding disc (16) is arranged at the top of the speed reduction rope (3). An elastic strip is wound inside the winding disc (16). A collar (17) is fixedly connected to the circumferential surface of the winding disc (16).
3. A safety escape rappelling device according to claim 1, characterized in that: A rotating column is arranged inside the fixed grip (6). The movable grip (7) is hinged to the fixed grip (6) through the rotating column. A sliding groove is formed inside the speed reducer box (1). The movable grip (7) is slidably connected to the inner wall of the speed reducer box (1).
4. A safety escape lowering device according to claim 1, characterized in that: An arc-shaped groove is formed inside the friction block (9). An anti-slip groove is formed inside the stop block (11). The stop block (11) is slidably connected to the extrusion column (10).
5. The safety escape device according to claim 1, characterized in that: A limiting column (13) is fixedly connected to the outer surface of the fixed block (2). A limiting block (14) is fixedly connected to the inner wall of the speed reducer box (1). The movable plate (8) is slidably connected to the limiting column (13) and the limiting block (14) respectively.
6. The safety escape lowering device according to claim 5, wherein: A groove is formed inside the movable plate (8). The movable plate (8) is slidably connected to the limiting column (13) through the groove.