A type of descent device

Abstract

This utility model relates to the technical field of escape tools and equipment, and provides a descent device, including: a fixed column, two movable sleeve plates movably sleeved on the outer surface of the fixed column, springs provided on opposite sides of the two movable sleeve plates, limit plates fixedly installed on both sides of the fixed column, connecting rods fixedly connected to both sides of the two movable sleeve plates, the two connecting rods being divided into upper and lower groups, and a connecting plate fixedly connected to the other side of each group of connecting rods, a load-bearing block fixedly installed on the outer surface of one of the connecting plates, and a safety buckle fixedly connected inside the load-bearing block. In use, the safety buckle is inserted into the load-bearing buckle, and when the user moves downwards and pulls the rope, the weight of the user's body is pulled towards the fixed column through the rope and the connecting plate. The fixed column is subjected to downward pressure, which compresses the springs. The springs buffer and tighten the pressure from both sides, thereby reducing the main pressure borne by the outer shell.

Description

Technical Field

[0001] This utility model relates to the field of escape tools and equipment technology, and in particular to a descent device. Background Technology

[0002] A descent device is a safety device designed to help people descend slowly and safely from a height to the ground in emergency situations. It is widely used in construction escape, fire rescue, high-altitude operations, and outdoor exploration. By controlling the descent speed, the descent device ensures that the user is not injured due to excessively rapid falls.

[0003] The existing patent, CN221014216U, discloses a descent device comprising a housing with an internal gear ring on its inner wall. Inside the housing are a sun gear and planetary gears, the planetary gears meshing with both the sun gear and the internal gear ring. Above the planetary gears is a rope-winding wheel, and on its lower end face is a mounting base with a first mounting hole through which the axle of the planetary gear passes. A second mounting hole is also provided at the center of the rope-winding wheel, through which the axle of the sun gear passes. This invention allows for easy installation and operation of the device, ensuring coordinated operation of the escape rope, planetary gears, and reduction gears, thereby achieving efficient and safe deceleration and descent.

[0004] While the above solution effectively addresses the safety, applicability, and lifespan issues of existing descent devices by combining sun gears and planetary gears, and while the sun gear and planetary gear configuration makes the descent device more stable and reliable during operation, thus improving safety, the device bears a significant weight when used by large or heavy individuals or during rescue operations. This increases rope friction without effectively reducing pressure on the descent device, further increasing its weight and potentially damaging the internal gear ring, thus reducing its lifespan. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a descent device, comprising: a fixed column, two movable sleeve plates movably sleeved on the outer surface of the fixed column, springs provided on opposite sides of the two movable sleeve plates, limit plates fixedly installed on both sides of the fixed column, connecting rods fixedly connected to both sides of the two movable sleeve plates, the two connecting rods being divided into upper and lower groups, a connecting plate fixedly connected to the other side of each group of connecting rods, a load-bearing block fixedly installed on the outer surface of one of the connecting plates, and a safety buckle fixedly connected inside the load-bearing block.

[0006] The technical effect of adopting the above-mentioned further solution is as follows: when the safety buckle is inserted into the load-bearing hook, the weight of the user moves downward and pulls the rope through the connecting plate to the fixed column. The fixed column is subjected to downward pressure and squeezes the spring. The spring buffers and tightens the pressure coming from both sides, thereby reducing the main pressure on the shell. The connecting rod is used to connect the movable sleeve plate and the connecting plate to prevent it from falling off.

[0007] In a preferred embodiment, the system further includes two housings, wherein another connecting plate is fixedly connected to the outer surface of one of the housings, and both housings have multiple mounting holes on their outer surfaces.

[0008] The technical advantages of adopting the above-mentioned further solution are: the connecting plate is connected to the outer surface of the housing, which facilitates the transmission of pressure to the fixing post and the safety buckle, and the mounting holes facilitate disassembly and maintenance.

[0009] In a preferred embodiment, rivets are detachably connected to the interior of each of the multiple mounting holes, and multiple pulleys are movably connected to opposite sides of the two housings.

[0010] The technical advantages of adopting the above-mentioned further solution are: the rivet inserted into the installation hole facilitates disassembly and maintenance, and protects the outer surface of the rope to prevent accidental detachment; the rope pulley facilitates rope sliding, reduces rope friction, and extends rope life.

[0011] In a preferred embodiment, internal gear rings are fixedly connected to opposite sides of the two housings, and multiple planetary gears are meshed on the inner surfaces of the two internal gear rings.

[0012] The technical effect of adopting the above-mentioned further solution is that the configuration of planetary gears and internal gear rings makes the movement of the housing smooth and reliable.

[0013] In a preferred embodiment, the plurality of planetary gears are divided into two groups on average, and the outer surface of each group of planetary gears is meshed with a driven sun gear.

[0014] The technical effect of adopting the above-mentioned further solution is that the configuration of the passive sun gear and planetary gears makes the rotation of the internal gear ring more stable and reliable.

[0015] In a preferred embodiment, an inner baffle is fixedly connected to one side of the outer surface of each of the two internal gear rings, and multiple collision bodies are movably connected to the outer surface of each of the two inner baffles. The two passive sun gears are both located inside the center of the inner baffles, and the multiple collision bodies surround the inner walls of the two outer shells.

[0016] The technical effect of adopting the above-mentioned further solution is that by setting an inner baffle on the back of the inner gear ring, its rotation is made more stable, and the collision body is arranged around the inner wall of the outer shell to prevent damage to the outer shell after the inner gear ring is deviated.

[0017] In a preferred embodiment, a protective cover can be detachably connected to one side of each of the two housings.

[0018] The technical effect of adopting the above-mentioned further solution is that the protective cover protects the internal parts from oxidation and rust.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] In this invention, when the safety buckle is inserted into the load-bearing hook, the user moves downwards and pulls the rope. The weight of the user's body is pulled towards the fixed post through the rope and the connecting plate. The fixed post is subjected to downward pressure, which compresses the spring. The spring buffers and tightens the pressure coming from both sides, thereby reducing the main pressure on the outer shell.

[0021] In this invention, when the user pulls the rope, the outer shell starts to move and slowly descends. The planetary gear and internal gear ring configuration ensures smooth and reliable movement of the outer shell. The impact body also effectively protects the rotation of the planetary gear, preventing internal collapse due to prolonged stress. The passive sun gear and planetary gear configuration also makes the rotation of the internal gear ring more stable and reliable. The inner baffle on the back of the internal gear ring makes its rotation more stable, and the impact body is arranged around the inner wall of the outer shell to prevent damage to the outer shell if the internal gear ring shifts. The rivets can be pulled out from the mounting holes, and the protective cover can be removed to repair the internal components. The device is easy to disassemble and maintain. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a descent device proposed in this utility model;

[0023] Figure 2 This is a head-up view of the structure of a decelerator proposed in this utility model;

[0024] Figure 3 This is a front view schematic diagram of a decelerator proposed in this utility model;

[0025] Figure 4 This is a partial structural diagram of the planetary gear of a descent device proposed in this utility model.

[0026] Figure 5 This is a partial structural diagram of the collision block of a decelerator proposed in this utility model.

[0027] Figure 6 This is a partial structural diagram of the inner baffle of a decelerator proposed in this utility model.

[0028] Figure 7 This is a schematic diagram of the passive sun gear structure of a descent device proposed in this utility model.

[0029] Legend:

[0030] 101. Outer shell; 102. Connecting plate; 103. Connecting rod; 104. Movable sleeve plate; 105. Fixed column; 106. Spring; 107. Limiting plate; 108. Load-bearing block; 109. Safety buckle; 110. Loop pulley; 111. Mounting hole; 112. Rivet; 113. Internal gear ring; 114. Planetary gear; 115. Passive sun gear; 116. Collision body; 117. Inner baffle; 118. Protective cover. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0033] Please see Figures 1 to 6 This utility model provides a descent device, comprising: a fixed column 105, two movable sleeve plates 104 movably sleeved on the outer surface of the fixed column 105, a spring 106 provided on one side of the two movable sleeve plates 104, limit plates 107 fixedly installed on both sides of the fixed column 105, connecting rods 103 fixedly connected to both sides of the two movable sleeve plates 104, the two connecting rods 103 being divided into upper and lower groups, and a connecting plate 102 fixedly connected to the other side of each group of connecting rods 103, wherein the outer surface of one of the connecting plates 102 is fixed... A load-bearing block 108 is installed, and a safety buckle 109 is fixedly connected inside the load-bearing block 108. When the safety buckle 109 is inserted into the load-bearing hook, the weight of the user moves downward and pulls the rope through the connecting plate 102 to the fixed column 105. The fixed column 105 is subjected to downward pressure and squeezes the spring 106. The spring 106 buffers and tightens the pressure coming from both sides, thereby reducing the main pressure on the outer shell 101. The connecting rod 103 is used to connect the movable sleeve plate 104 and the connecting plate 102 to prevent it from falling off.

[0034] like Figures 1 to 6As shown, it also includes two housings 101, with another connecting plate 102 fixedly connected to the outer surface of one of the housings 101. Both housings 101 have multiple mounting holes 111 on their outer surfaces. The connecting plate 102 is connected to the outer surface of the housing 101 to facilitate the transmission of pressure to the fixing post 105 and the safety buckle 109. The mounting holes 111 facilitate disassembly and maintenance.

[0035] like Figures 1 to 6 As shown, rivets 112 are detachably connected inside the multiple mounting holes 111. Multiple rope pulleys 110 are movably connected to the opposite sides of the two outer shells 101. The rivets 112 are inserted into the mounting holes 111 for easy disassembly and maintenance, and also protect the outer surface of the rope to prevent accidental detachment. The rope pulleys 110 facilitate the sliding of the rope, reduce the friction of the rope, and extend the life of the rope.

[0036] like Figures 1 to 6 As shown, internal gear rings 113 are fixedly connected to opposite sides of the two housings 101. Multiple planetary gears 114 are meshed on the inner surfaces of the two internal gear rings 113. The configuration of the planetary gears 114 and the internal gear rings 113 makes the movement of the housings 101 smooth and reliable.

[0037] like Figures 1 to 6 As shown, multiple planetary gears 114 are divided into two groups. The outer surfaces of each group of planetary gears 114 are meshed with a driven sun gear 115. The configuration of the driven sun gear 115 and the planetary gears 114 makes the rotation of the internal gear ring 113 more stable and reliable.

[0038] like Figures 1 to 6 As shown, an inner baffle 117 is fixedly connected to one side of the outer surface of each of the two inner gear rings 113. Multiple collision bodies 116 are movably connected to the outer surface of each of the two inner baffles 117. The two passive sun gears 115 are both located inside the center of the inner baffles 117. The multiple collision bodies 116 surround the inner walls of the two outer shells 101. By setting the inner baffles 117 on the back of the inner gear rings 113, their rotation is made more stable. The collision bodies 116 are arranged around the inner walls of the outer shells 101 to prevent damage to the outer shells 101 after the inner gear rings 113 deviate.

[0039] like Figures 1 to 6 As shown, each of the two housings 101 has a detachable protective cover 118 on one side, which is used to protect the internal parts from oxidation and rust.

[0040] The working principle of this utility model is as follows: During use, the safety buckle 109 is inserted into the load-bearing hook. When the user moves downwards, pulling the rope, the weight of the user is pulled towards the fixed post 105 via the rope and connecting plate 102. The fixed post 105 experiences downward pressure, compressing the spring 106. The spring 106 buffers and tightens the pressure from both sides, thereby reducing the main pressure on the outer shell 101. Simultaneously, when the user pulls the rope, the outer shell 101 begins to move, slowly descending. The planetary gear 114 and internal gear ring 113 configuration ensures smooth and reliable movement of the outer shell 101. The collision body 116 also provides cushioning. The rotation of the planetary gear 114 is properly protected to prevent internal collapse due to prolonged stress. The configuration of the passive sun gear 115 and the planetary gear 114 also makes the rotation of the internal gear ring 113 more stable and reliable. The inner baffle 117 is set on the back of the internal gear ring 113 to make its rotation more stable. The collision body 116 is arranged around the inner wall of the housing 101 to prevent damage to the housing 101 if the internal gear ring 113 is displaced. The rivet 112 is pulled out from the inside of the mounting hole 111 and the protective cover 118 is removed to repair the overall components inside the housing 101. The device is easy to disassemble and facilitates the maintenance of internal parts.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A descent device, comprising: The fixed column (105) is characterized in that: two movable sleeve plates (104) are movably sleeved on the outer surface of the fixed column (105), and springs (106) are provided on the opposite side of the two movable sleeve plates (104). Limiting plates (107) are fixedly installed on both sides of the fixed column (105). Connecting rods (103) are fixedly connected to both sides of the two movable sleeve plates (104). The two connecting rods (103) are divided into upper and lower groups on an average basis. A connecting plate (102) is fixedly connected to the other side of each group of connecting rods (103). A load-bearing block (108) is fixedly installed on the outer surface of one of the connecting plates (102). A safety buckle (109) is fixedly connected inside the load-bearing block (108).

2. The descent device according to claim 1, characterized in that: It also includes two housings (101), wherein the other connecting plate (102) is fixedly connected to the outer surface of one of the housings (101), and the outer surfaces of both housings (101) are provided with a plurality of mounting holes (111).

3. A descent device according to claim 2, characterized in that: Rivets (112) are detachably connected inside the multiple mounting holes (111), and multiple pulleys (110) are movably connected to opposite sides of the two housings (101).

4. A descent device according to claim 3, characterized in that: An internal gear ring (113) is fixedly connected to one side of each of the two housings (101), and multiple planetary gears (114) are meshed on the inner surfaces of the two internal gear rings (113).

5. A descent device according to claim 4, characterized in that: The planetary gears (114) are divided into two groups, and the outer surface of each group of planetary gears (114) is meshed with a passive sun gear (115).

6. A descent device according to claim 5, characterized in that: An inner baffle (117) is fixedly connected to one side of the outer surface of each of the two inner gear rings (113), and multiple collision bodies (116) are movably connected to the outer surface of each of the two inner baffles (117).

7. A descent device according to claim 6, characterized in that: Both passive sun gears (115) are located inside the center of the inner baffle (117), and multiple collision bodies (116) surround the inner walls of the two outer shells (101).

8. A descent device according to claim 7, characterized in that: Each of the two housings (101) has a protective cover (118) detachably attached to one side.

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