A rising pulley decelerator

Abstract

This utility model discloses a rising pulley descent device, relating to the field of pulley technology. The utility model includes a gearbox and a main board fixedly connected to the rear side of the gearbox, and further includes: a double reverse gear section installed inside the gearbox; a release section installed inside the gearbox; the double reverse gear section includes a spare reverse gear assembly installed inside the gearbox; a transmission assembly located inside the gearbox; and a commonly used reverse gear assembly disposed inside the main board; the spare reverse gear assembly includes a rotating shaft rotatably connected to the inner wall of the gearbox. This utility model, by incorporating a double reverse gear section, solves the problem that in existing descent devices, when the anti-reverse structure inside the gearbox collapses, the device becomes unusable, and when the collapse occurs while the user is suspended at a high altitude, the user is unable to continue operating the device, posing a serious threat to the user's life safety.

Description

Technical Field

[0001] This utility model belongs to the field of pulley technology, and in particular relates to a rising pulley decelerator. Background Technology

[0002] The rising pulley descent device is an emergency escape equipment that integrates mechanical transmission and safety control technologies. It is primarily used in scenarios such as high-rise buildings, mines, and outdoor rescue to achieve safe lifting and emergency evacuation of personnel or materials. Its working principle is based on the labor-saving structure of the pulley block and the centrifugal braking system. Multiple pulleys work together to reduce the operating force, while the built-in braking device can automatically sense the speed and trigger deceleration instantly when the speed exceeds the limit to avoid the risk of falling. Compared with traditional descent devices, it adds a rising function, supporting both emergency escape and active climbing operations for rescue personnel. Currently, this equipment is widely used in the fire protection, construction, and outdoor exploration industries. With its simple operation, stable load-bearing capacity, and high safety, it has become a key piece of equipment for dealing with high-altitude emergencies, effectively filling the functional gap from "one-way escape" to "two-way operation".

[0003] However, when the anti-reverse mechanism inside the gearbox of the existing descent device collapses during use, the device becomes unusable. When the collapse occurs while the user is suspended at a high altitude, the user will find it difficult to continue operating the device, which poses a serious threat to the user's life safety. Utility Model Content

[0004] The purpose of this utility model is to provide a rising pulley descent device. By setting up a double reverse tooth section, it solves the problem that when the anti-reverse structure in the gearbox of the existing descent device collapses during use, the device is difficult to continue to use. When the collapse occurs when the user is suspended at a high altitude, the user is unable to continue to operate the device, which poses a serious threat to the user's life safety.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a rising pulley decelerator, comprising a gearbox and a main board fixedly connected to the rear side of the gearbox, and further comprising: a double reverse gear section installed inside the gearbox; a release section installed inside the gearbox; the double reverse gear section includes a spare reverse gear assembly installed inside the gearbox; a transmission assembly located inside the gearbox; and a common reverse gear assembly located inside the main board; the spare reverse gear assembly includes a rotating shaft rotatably connected to the inner wall of the gearbox, the rear side of the rotating shaft extending to the outside of the main board, the outer wall of the rotating shaft rotatably connected to the main board, a connecting block rotatably connected to the outer wall of the rotating shaft, a rope wheel fixedly connected to the outer wall of the rotating shaft, the outer wall of the connecting block rotatably connected to the rope wheel, a plurality of locking teeth being formed inside the rope wheel, a locking block slidably connected to the inner wall of the connecting block, a spring fixedly connected to the inner wall of the locking block, the side of the spring away from the locking block being fixedly connected to the connecting block, and the locking block being adapted to the plurality of locking teeth.

[0006] Furthermore, the release unit includes a moving component installed inside the main board; and a limiting component located outside the rope wheel, the moving component being used to deploy the limiting component.

[0007] Furthermore, the transmission assembly includes a second rotating shaft rotatably connected to the inner wall of the gearbox, the front side of the second rotating shaft extending to the outside of the gearbox, a third rotating shaft rotatably connected to the inner wall of the gearbox, a second locking block hinged to the inner wall of the gearbox, a second spring fixedly connected to the inner wall of the second locking block away from the first rotating shaft, the side of the second spring away from the first rotating shaft fixedly connected to the gearbox, a gear assembly provided inside the gearbox for transmission, the gear assembly including a first gear fixedly connected to the outer wall of the second rotating shaft, a second gear fixedly connected to the outer wall of the third rotating shaft, a third gear fixedly connected to the outer wall of the third rotating shaft, a fourth gear fixedly connected to the outer wall of the first rotating shaft, the first gear meshing with the second gear, the third gear meshing with the fourth gear, and the second locking block meshing with the fourth gear.

[0008] Furthermore, the commonly used reverse gear assembly includes a limiting ring fixedly connected to the inner wall of the gearbox. The inner wall of the limiting ring is rotatably connected to the rotating shaft three. A connecting plate is fixedly connected to the outer wall of the rotating shaft three. Several locking teeth two are provided on the rear side of the limiting ring. A locking block three is hinged to the front side of the connecting plate. A spring is hinged to the front side of the connecting plate. The locking block three is adapted to the locking teeth two. The spring is made of elastic material and abuts between the inner wall of the limiting ring and the locking block three.

[0009] Furthermore, the moving component includes a limiting shaft 1 disposed within the motherboard, a movable cover plate rotatably connected to the outer wall of the limiting shaft 1, a control handle rotatably connected to the motherboard, a limiting groove 1 formed on the rear side of the control handle, a limiting groove 2 formed on the motherboard, the limiting groove 2 penetrating the motherboard, and the shape of the limiting shaft 1 being adapted to the limiting groove 1 and the limiting groove 2.

[0010] Furthermore, the limiting component includes a rotating shaft four rotatably connected to the rear side of the main board. A rotating plate is rotatably connected to the outer wall of the rotating shaft four. The inner wall of the rotating plate is rotatably connected to a limiting shaft one. A limiting shaft two is fixedly connected to the rear side of the main board. The outer wall of the limiting shaft two is fixedly connected to a connecting block one. A limiting groove three is formed on the inner wall of the rotating plate. The limiting groove three penetrates the rotating plate. The limiting shaft three is fixedly connected to the rear side of the main board. The limiting groove three is adapted to the limiting shaft three. The bottom of the rotating plate has a collar that can rotate freely 360° and can be adjusted as needed.

[0011] This utility model has the following beneficial effects: 1. By setting up a double reverse gear section, in use, in the spare reverse gear assembly of the double reverse gear section, the connecting block one is rotatably connected to the rotating shaft one, the rope wheel is fixed to the outer wall of the rotating shaft one and rotatably connected to the connecting block one, and the locking block one is connected to the connecting block one through the spring one and is adapted to the locking tooth one in the rope wheel; in the transmission assembly, each rotating shaft is rotatably connected to the gearbox, and the gear realizes the transmission between each rotating shaft, and the locking block two is connected to the gearbox through the spring two and meshes with the gear; in the commonly used reverse gear assembly, the connecting plate is fixed to the outer wall of the rotating shaft three, the locking block three and the spring are both hinged to the front side of the connecting plate, the locking block three is adapted to the locking tooth two of the limiting ring, and the spring abuts between the inner wall of the limiting ring and the locking block three, together forming an anti-reverse transmission structure, which can avoid the device being difficult to continue to use after the anti-reverse structure collapses, especially avoiding the life safety threat faced by users when suspended at high altitudes due to the inability to operate the device, and ensuring that the device can still maintain a safe operating state when the key anti-reverse structure fails; 2. By setting up a lifting section, during use, in the moving component of the lifting section, the first limiting shaft is rotatably connected to the movable cover plate, and the control handle is rotatably connected to the main board. The first limiting groove of the control handle and the second limiting groove of the main board are both adapted to the first limiting shaft. In the limiting component, the fourth rotating shaft is rotatably connected to the main board, the rotating plate is rotatably connected to the fourth rotating shaft and also rotatably connected to the first limiting shaft, the second limiting shaft is fixedly connected to the main board and fixed to the first connecting block, and the third limiting groove of the rotating plate is adapted to the third limiting shaft of the main board. The moving component drives the first limiting shaft to move, thereby causing the limiting component to unfold. This enables flexible adjustment of the rope's fixed state, providing necessary structural support for the lifting operation of the device, ensuring that the rope is in a suitable stress state under different operational requirements, and guaranteeing the smooth operation of the lifting operation.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of gear two of this utility model; Figure 3 This is a partial cross-sectional view of the spare reverse gear assembly of this utility model; Figure 4 This is a schematic diagram of the overall structure of the card block of this utility model; Figure 5 This is a partial cross-sectional view of the transmission component of this utility model. Figure 6 This is a schematic diagram of the overall structure of the rotating shaft three of this utility model; Figure 7 This is a partial cross-sectional view of the commonly used reverse gear assembly of this utility model; Figure 8 This utility model Figure 7 A magnified structural diagram of A in the middle; Figure 9 This is an exploded view of the mobile component of this utility model; Figure 10 This is a schematic diagram of the overall structure of the limiting shaft two of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 101. Gearbox; 102. Mainboard; 2. Double reverse gear section; 21. Spare reverse gear assembly; 211. Shaft 1; 212. Connecting block 1; 213. Rope pulley; 214. Clamping tooth 1; 215. Clamping block 1; 216. Spring 1; 22. Transmission assembly; 221. Shaft 2; 222. Shaft 3; 223. Gear 1; 224. Gear 2; 225. Gear 3; 226. Gear 4; 227. Clamping block 2; 228. Spring 2; 23. Commonly used reverse gear components; 231, limiting ring; 232, connecting plate; 233, locking tooth two; 234, locking block three; 235, spring; 3, release part; 31, moving component; 311, limiting shaft one; 312, movable cover plate; 313, control handle; 314, limiting groove one; 315, limiting groove two; 32, limiting component; 321, rotating shaft four; 322, rotating plate; 323, limiting shaft two; 324, limiting groove three; 325, limiting shaft three. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-10 As shown, this utility model is a rising pulley decelerator, including a gearbox 101 and a main board 102 fixedly connected to the rear side of the gearbox 101, and also includes: a double reverse gear part 2, which is installed in the gearbox 101; and a release part 3, which is installed in the gearbox 101.

[0018] The double reverse gear section 2 includes a spare reverse gear assembly 21, which is installed inside the gearbox 101; a transmission assembly 22, which is located inside the gearbox 101; and a regular reverse gear assembly 23, which is disposed inside the main board 102. The spare reverse gear assembly 21 includes a rotating shaft 211 rotatably connected to the inner wall of the gearbox 101. The rear side of the rotating shaft 211 extends to the outside of the main board 102. The outer wall of the rotating shaft 211 is rotatably connected to the main board 102. A connecting block 212 is rotatably connected to the outer wall of the rotating shaft 211. A rope wheel 213 is fixedly connected to the outer wall of the rotating shaft 211. The outer wall of the connecting block 212 is rotatably connected to the rope wheel 213. Several locking mechanisms are provided inside the rope wheel 213. A locking block 215 is slidably connected to the inner wall of a gear 214 and a connecting block 212. A spring 216 is fixedly connected to the inner wall of the locking block 215. The side of the spring 216 away from the locking block 215 is fixedly connected to the connecting block 212. The locking block 215 is adapted to several locking teeth 214. The transmission assembly 22 includes a rotating shaft 221 rotatably connected to the inner wall of the gearbox 101. The front side of the rotating shaft 221 extends to the outside of the gearbox 101. A rotating shaft 222 is rotatably connected to the inner wall of the gearbox 101. A locking block 227 is hinged to the inner wall of the gearbox 101. A spring 228 is fixedly connected to the inner wall of the locking block 227 away from the rotating shaft 211. The spring 228 is located away from the rotating shaft 214. One side of shaft 211 is fixedly connected to gearbox 101. Gear components are installed inside gearbox 101 for transmission. The gear components include gear 223 fixedly connected to the outer wall of shaft 221, gear 224 fixedly connected to the outer wall of shaft 322, gear 225 fixedly connected to the outer wall of shaft 322, and gear 226 fixedly connected to the outer wall of shaft 211. Gear 223 meshes with gear 224, gear 225 meshes with gear 426, and locking block 227 meshes with gear 426. The commonly used reverse gear assembly 23 includes a limiting ring 231 fixedly connected to the inner wall of gearbox 101. The inner wall of the limiting ring 231 is rotatably connected to shaft 322. Connecting plate 232 is fixedly connected to the outer wall of rotating shaft 222. Several locking teeth 233 are opened on the rear side of limiting ring 231. Locking block 234 is hinged to the front side of connecting plate 232. Spring 235 is hinged to the front side of connecting plate 232. Locking block 234 is adapted to locking teeth 233. Spring 235 is made of elastic material and abuts between the inner wall of limiting ring 231 and locking block 234. By setting double reverse teeth 2, the device can be prevented from being difficult to continue to use after the anti-reverse structure collapses. In particular, it can prevent the life safety threat faced by the user when suspended in the air due to the inability to operate the device. It can ensure that the device can still maintain a safe operating state when the key anti-reverse structure fails.

[0019] The lifting section 3 includes a moving component 31, which is installed inside the main board 102; and a limiting component 32, which is located outside the rope wheel 213. The moving component 31 is used to deploy the limiting component 32. The moving component 31 includes a limiting shaft 311 disposed inside the main board 102. A movable cover plate 312 is rotatably connected to the outer wall of the limiting shaft 311. A control handle 313 is rotatably connected to the main board 102. A limiting groove 314 is formed on the rear side of the control handle 313. A limiting groove 315 is formed on the main board 102 and penetrates through the main board 102. The shape of the limiting shaft 311 is adapted to the limiting groove 314 and the limiting groove 315. The limiting component 32 includes a rotating shaft 314 rotatably connected to the rear side of the main board 102. 21. A rotating plate 322 is rotatably connected to the outer wall of the rotating shaft 321. The inner wall of the rotating plate 322 is rotatably connected to the limiting shaft 311. The rear side of the main board 102 is fixedly connected to the limiting shaft 323. The outer wall of the limiting shaft 323 is fixedly connected to the connecting block 212. The inner wall of the rotating plate 322 is provided with a limiting groove 324, which passes through the rotating plate 322. The rear side of the main board 102 is fixedly connected to the limiting shaft 325. The limiting groove 324 and the limiting shaft 325 are adapted to each other. By setting the release part 3, the fixed state of the rope can be flexibly adjusted, providing necessary structural support for the lifting operation of the device, ensuring that the rope can be in a suitable stress state under different operating requirements, and ensuring the smooth operation of the lifting operation.

[0020] A specific application of this embodiment is as follows: In use, the movable cover plate 312 can be opened, and then the control handle 313 can be pulled, causing it to squeeze the limiting shaft 311 through the limiting groove 314, thereby causing the limiting shaft 311 to move within the limiting groove 315. At this time, the limiting shaft 311 will drive the rotating plate 322 to rotate on the outer wall of the rotating shaft 321. Under the action of the limiting groove 324 and then the limiting shaft 325, the movement of the rotating plate 322 will be kept stable. Then, the rope can be wound around the rope wheel 213, so that the two ends of the rope pass through the top of the limiting shaft 311 and the right side of the rotating plate 322, respectively. Then, the control handle 313 can be reversed to allow it to pass through the limiting groove 314. Limiting groove 1 314 and limiting groove 2 315 drive limiting shaft 1 311 to reset. At this time, rotating plate 322 will also reset. Rope wheel 213 will then compress the rope, making it press against rotating plate 322. When upward movement is needed, the motor can drive rotating shaft 221 to rotate. Rotating shaft 221, through gears 1 223 and 224, drives rotating shaft 3 222 to rotate. Rotating shaft 3 222, in turn, drives gear 3 225 to rotate. Gear 3 225, in turn, drives rotating shaft 221 to rotate through gear 4 226. When gear 4 226 rotates, it compresses locking block 227, causing spring 228 to compress and generate elastic force. When gear 4 226 reverses, the spring force of spring 228 will cause block 227 to lock gear 4 226. When shaft 3 222 rotates, it will drive connecting plate 232 to rotate. When connecting plate 232 rotates, it will drive block 3 234 to rotate. At this time, block 3 234 will be squeezed by tooth 233, which will in turn squeeze spring 235, causing it to generate elastic force. When the rotation direction of connecting plate 232 changes, the elastic force of spring 235 will cause block 3 234 to engage with tooth 233, thus completing the locking. When parts inside gearbox 101 break, the force of shaft 1 211 will directly act on pulley 21. 3. When ascending, the rotating shaft 211 drives the rope wheel 213 to rotate forward. At this time, the rope wheel 213 drives the locking tooth 214 to squeeze the locking block 215, causing it to slide into the connecting block 212. This compresses the spring 216 and generates elastic force. When descending, the rope wheel 213 tends to reverse. At this time, under the action of the elastic force of the spring 216, the locking block 215 will be locked in the locking tooth 214, thus locking the rope wheel 213 and preventing it from reversing. When it is necessary to descend, the control handle 313 can be turned to drive the rotating plate 322 away from the rope wheel 213. At this time, the friction force on the rope will be reduced, allowing the device to move slowly downward.

[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An ascending pulley controlled descent device, comprising a gear box (101) and a main plate (102) fixedly connected to the rear side of the gear box (101), characterized in that, Also includes: Double reverse gear section (2), said double reverse gear section (2) is installed in gearbox (101); The detachment section (3) is installed inside the gearbox (101); The double reverse gear section (2) includes a spare reverse gear assembly (21), which is installed inside the gearbox (101); Transmission assembly (22), which is located within gearbox (101); and Commonly used reverse gear assembly (23), wherein the commonly used reverse gear assembly (23) is disposed in the motherboard (102); The spare reverse gear assembly (21) includes a rotating shaft (211) rotatably connected to the inner wall of the gearbox (101). The rear side of the rotating shaft (211) extends to the outside of the main board (102). The outer wall of the rotating shaft (211) is rotatably connected to the main board (102). A connecting block (212) is rotatably connected to the outer wall of the rotating shaft (211). A rope wheel (213) is fixedly connected to the outer wall of the rotating shaft (211). The outer wall of the connecting block (212) is rotatably connected to the rope wheel (213). Several locking teeth (214) are opened in the rope wheel (213). A locking block (215) is slidably connected to the inner wall of the connecting block (212). A spring (216) is fixedly connected to the inner wall of the locking block (215). The side of the spring (216) away from the locking block (215) is fixedly connected to the connecting block (212). Among them, the first card block (215) is adapted to several first card teeth (214).

2. An ascending pulley controlled descent device according to claim 1, wherein, The liberation unit (3) includes a moving component (31) which is mounted within the motherboard (102); and A limiting component (32) is located outside the rope pulley (213); The movable component (31) is used to deploy the limiting component (32).

3. A rising pulley descent device according to claim 2, characterized in that, The transmission assembly (22) includes a second rotating shaft (221) rotatably connected to the inner wall of the gearbox (101), the front side of the second rotating shaft (221) extending to the outside of the gearbox (101), a third rotating shaft (222) rotatably connected to the inner wall of the gearbox (101), a second locking block (227) hinged to the inner wall of the gearbox (101), a second spring (228) fixedly connected to the inner wall of the second locking block (227) away from the first rotating shaft (211), the second spring (228) fixedly connected to the gearbox (101) on the side away from the first rotating shaft (211), and gear components provided inside the gearbox (101). Among them, gears are used for transmission.

4. A rising pulley descent device according to claim 3, characterized in that, The commonly used reverse gear assembly (23) includes a limiting ring (231) fixedly connected to the inner wall of the gearbox (101). The inner wall of the limiting ring (231) is rotatably connected to the rotating shaft three (222). The outer wall of the rotating shaft three (222) is fixedly connected to a connecting plate (232). Several locking teeth two (233) are opened on the rear side of the limiting ring (231). A locking block three (234) is hinged to the front side of the connecting plate (232). A spring plate (235) is hinged to the front side of the connecting plate (232). Among them, the third locking block (234) is adapted to the second locking tooth (233), and the spring (235) is made of elastic material and abuts against the inner wall of the limiting ring (231) and the third locking block (234).

5. A rising pulley decelerator according to claim 4, characterized in that, The moving component (31) includes a limiting shaft (311) disposed in the main board (102), a movable cover plate (312) is rotatably connected to the outer wall of the limiting shaft (311), a control handle (313) is rotatably connected to the main board (102), a limiting groove (314) is opened on the rear side of the control handle (313), a limiting groove (315) is opened on the main board (102), and the limiting groove (315) penetrates the main board (102). Among them, the shape of the limiting shaft one (311) is adapted to the limiting groove one (314) and the limiting groove two (315).

6. A rising pulley descent device according to claim 5, characterized in that, The limiting component (32) includes a rotating shaft four (321) rotatably connected to the rear side of the main board (102). A rotating plate (322) is rotatably connected to the outer wall of the rotating shaft four (321). The inner wall of the rotating plate (322) is rotatably connected to the limiting shaft one (311). A limiting shaft two (323) is fixedly connected to the rear side of the main board (102). The outer wall of the limiting shaft two (323) is fixedly connected to the connecting block one (212). A limiting groove three (324) is opened on the inner wall of the rotating plate (322). The limiting groove three (324) passes through the rotating plate (322). A limiting shaft three (325) is fixedly connected to the rear side of the main board (102). Among them, the limiting groove three (324) is adapted to the limiting shaft three (325).

7. A rising pulley descent device according to claim 6, characterized in that, The gear components include a gear one (223) fixedly connected to the outer wall of the second rotating shaft (221), a gear two (224) fixedly connected to the outer wall of the third rotating shaft (222), a gear three (225) fixedly connected to the outer wall of the third rotating shaft (222), and a gear four (226) fixedly connected to the outer wall of the first rotating shaft (211). Among them, gear one (223) meshes with gear two (224), gear three (225) meshes with gear four (226), and block two (227) meshes with gear four (226).

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