WO2019148883A1

WO2019148883A1 - High-rise escape backpack

Info

Publication number: WO2019148883A1
Application number: PCT/CN2018/109726
Authority: WO
Inventors: 乔青阳; 朱天钢; 刘尧; 周新钦; 刘讯; 闫孟; 李坚崇; 李恒
Original assignee: 南阳及时星应急救援装备有限公司
Priority date: 2018-02-01
Filing date: 2018-10-10
Publication date: 2019-08-08
Also published as: BE1026085B1; CN108261613B; CN108261613A; BE1026085A1

Abstract

A high-rise escape backpack (100), relating to the technical field of high-rise escape tools and comprising a backpack body (200) and a high-rise escape descent control device (300). The high-rise escape descent control device (300) comprises a rope (320), a rope winding mechanism (340), and a speed change mechanism (360); the rope winding mechanism (340) comprises a frame (350) and a rope winding disc rotatably provided on the frame (350); the frame (350) is provided in the backpack body (200); the rope (320) is wound on the rope winding disc, with one end fixed onto the rope winding disc and the other end passing through the backpack body (200) to be connected to a fixing piece; the speed change mechanism (360) comprises a driving wheel (361) which moves synchronously with the rope winding disc and at least one speed reduction mechanism (370); each speed reduction mechanism (370) comprises a driven wheel (371) engaged with the driving wheel (361), a connecting shaft (372) provided on the driven wheel (371), a friction wheel (373), and a friction portion (374) for generating a friction force with the frame (350); the diameter of the driving wheel (361) is greater than that of the driven wheel (371); the friction wheel (373) is sleeved at the side of the connecting shaft away from the driven wheel (371); the friction portion (374) is located between the friction wheel (373) and the frame (350). The high-rise escape backpack can achieve safe and stable descending, more comfortable use, and the purpose of safe escape.

Description

High-rise escape backpack

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201101105 0 031, the entire disclosure of which is incorporated herein by reference.

Technical field

The present application relates to the field of high-level escape tool technology, and in particular to a high-rise escape backpack.

Background technique

The existing descending device in the market has a simple structure, and the human body is fixed only by a safety belt. During the descending process, the human body has a clear sense of restraint and lacks safety. The operation is complicated, the wire rope is separated from the speed reduction mechanism, and the wire rope needs to be thrown first, and then the seat belt is put on. When a fire occurs, it is easy to cause an operation error due to panic.

Application content

The purpose of the present application is to provide a high-rise escape backpack that can be safely and stably lowered, is more comfortable to use, and achieves a safe escape.

This application is implemented using the following technical solutions:

The present application provides a high-rise escape backpack, including a backpack body and a high-rise escape descender, the high-rise escape descender includes a rope, a roping mechanism and a shifting mechanism, and the roping mechanism includes a frame body and a roping disk disposed on the frame body The frame is disposed in the body of the backpack, the rope is wound around the roping disc and one end is fixed to the roping disc, and the other end is connected to the fixing member through the backpack body, and the shifting mechanism comprises a driving wheel synchronously moving with the roping disc and at least one a speed reducing mechanism, each of which includes a driven wheel that meshes with the driving wheel, a connecting shaft that is disposed on the driven wheel, a friction wheel, and a friction portion that generates a frictional force with the frame body, wherein the diameter of the driving wheel is larger than the diameter of the driven wheel, The friction wheel is sleeved on a side of the connecting shaft away from the driven wheel, and the friction portion is located between the friction wheel and the frame body.

Further, the backpack body comprises a backpack body and a backpack safety belt, the frame body is disposed in the body of the backpack, the rope is connected to the fixing member through the body of the backpack, and the backpack safety belt is coupled to the body of the backpack.

Further, the backpack safety belt is connected to the main body of the backpack, and a high-level escape descending device is arranged in the main body of the backpack.

Further, the backpack harness includes a connecting strap, two shoulder straps, two waist straps and two ankle straps, the strap having a first end and a second end, one end of each shoulder strap The backpack body is connected, and the other end is disposed at the first end. One end of each waist strap is connected with the backpack body, and the other end is disposed at the first end. One end of each crotch strap is connected with the backpack body, and the other end is disposed at the first end. The two ends, and the shoulder straps, waist straps and ankle straps are arranged from top to bottom.

Further, the first end is provided with a buckle, the second end is provided with a buckle; the shoulder strap and the waist strap are connected with the first end through the buckle, and the ankle strap is connected with the second end by the buckle.

Further, the outer wheel surface of the friction wheel is provided with a mounting groove, and the friction portion is disposed in the mounting groove and located outside the friction wheel.

Further, the friction portion is provided with two, and the two friction portions are spaced apart and connected by a spring.

Further, the friction portion includes a friction block and a friction plate, the friction block is disposed in the installation groove and located outside the friction wheel, the friction plate is disposed outside the friction block and is located in the frame body, and the two ends of the spring are respectively disposed on the friction of the two friction portions Piece.

Further, the friction block is a metal friction block, and the friction plate is an asbestos friction plate.

Further, a fixing ring is disposed at both ends of the friction block of each friction portion, and both ends of the spring are respectively installed in the fixing rings of the two friction blocks

Further, the outer wheel surface of the friction wheel is provided with two mounting slots, and one friction block is respectively disposed in one mounting slot.

Further, the speed reduction mechanism is provided with two, and two speed reduction mechanisms are respectively disposed on both sides of the driving wheel.

Further, the frame body includes an end cover and oppositely disposed first mounting plate and second mounting plate, the roping disk is disposed between the first mounting plate and the second mounting plate, and the end cover is disposed away from the second mounting plate One side of the mounting plate and the shifting mechanism are disposed in the end cap.

Further, the roping mechanism further includes a rope limiting device, wherein both ends of the rope limiting device are fixed to the first mounting plate and the second mounting plate, and the rope limiting device is provided with a limited hole, and the rope passes through the limiting hole and Fixing parts are connected.

Further, the rope limiting device comprises a sliding roller assembly and a rope baffle, both ends of the sliding roller assembly and the rope baffle are fixed to the first mounting plate and the second mounting plate, and the rope baffle is located above the sliding roller assembly, the rope A limited hole is arranged on the baffle, and the rope is sequentially connected to the fixing member through the sliding roller and the limiting hole.

Further, the sliding roller assembly includes two first sliding rollers and two second sliding rollers, the axes of the two first sliding rollers being perpendicular to the axes of the two second sliding rollers.

Further, the two first sliding rollers are different in size.

Further, the end cover includes a cover plate and a side wall plate surrounding the outer periphery of the cover plate, and a side of the side wall plate remote from the cover plate is disposed on the second mounting plate, and the friction portion moves along the radial direction of the friction wheel The inner wall of the side wall panel is rubbed.

Further, the side wall plate is two annular side plates, and the friction portion of one speed reduction mechanism rubs against the inner wall of one side plate when moving in the radial direction of the corresponding friction wheel.

The high-rise escape backpack provided by the preferred embodiment of the present application has the beneficial effects of: when using the high-rise escape backpack, the fixing member is hung on the pre-installed hook, and the backpack body is placed on the user body, and the backpack body is set to the user. There is no sense of restraint on the body, making the use of high-rise escape backpacks more comfortable. The setting of the frame body can realize the installation of the high-level escape descending device and the backpack body. When the user jumps from the high-rise, the rope is continuously pulled out from the body of the backpack, so that the rope reel of the rope is continuously rotated, thereby driving and The driving wheel of the synchronous movement of the roping disc rotates. Since the diameter of the driving wheel is larger than the diameter of the driven wheel, the driven wheel that meshes with the driving wheel rotates more rapidly, so that the connecting shaft rotates rapidly and the friction is set on the connecting shaft. The wheel also rotates rapidly. Due to the centrifugal force, when the friction part rotates at a high speed, the friction part moves toward the radial direction away from the friction wheel, that is, away from the friction wheel, so that the friction part contacts the frame body, and the friction part and the frame body Friction is generated between them to achieve the purpose of slowing down the speed. Through the friction between the friction part and the frame body, the user can safely and stably descend to achieve the purpose of high-level escape, and the use of the high-level escape backpack is more comfortable through the setting of the backpack body.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following drawings for the embodiments need to be briefly introduced. It is understood that the following drawings are merely illustrative of certain embodiments of the present application and are not to be construed as limiting. Other drawings can be obtained from those skilled in the art without departing from the drawings.

1 is a schematic diagram of a first structure of a high-rise escape backpack provided by an embodiment of the present application;

2 is a schematic diagram of a second structure of a high-rise escape backpack provided by an embodiment of the present application;

3 is a first cross-sectional view of a high-rise escape Descending device provided by an embodiment of the present application;

4 is a second cross-sectional view of a high-rise escape descent device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a high-rise escape Descending device according to an embodiment of the present application; FIG.

6 is a schematic structural view of a shifting mechanism provided by an embodiment of the present application;

7 is a schematic structural view of an end cap provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a first structure of a rope limiting device according to an embodiment of the present application; FIG.

FIG. 9 is a second schematic structural diagram of a rope limiting device according to an embodiment of the present application.

Icons: 100-high-rise escape backpack; 200-backpack body; 300-high-rise escape descender; 210-package seat belt; 220-backpack body; 211-joint belt; 212-shoulder strap; 213-waist strap; 214-ankle strap; 215-first end; 216-second end; 217-snap; 218-buckle; 310-fixing member; 320-rope; 340-winding mechanism; 350-frame; - shifting mechanism; 341 - roping ring; 342 - first baffle; 343 - second baffle; 344 - rotating shaft; 351 - first mounting plate; 352 - second mounting plate; 353 - end cap; Cover plate; 355-side wall plate; 361-drive wheel; 370-speed reduction mechanism; 371-driven wheel; 372-connecting shaft; 373-friction wheel; 374-friction portion; 375-friction block; 376-friction plate; - mounting groove; 378-spring; 379-fixing ring; 381-slot wall; 400-rope limiting device; 410-stop hole; 420-sliding roller assembly; 430-rope baffle; 421-first sliding roller; 422 - second sliding roller.

Detailed ways

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the present application, and not all of them.

Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claims All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

It should be noted that, in the case of no conflict, the features and technical solutions in the embodiments and the embodiments in the present application may be combined with each other.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

Example 1

Compared with the traditional safety belt, the high-rise escape backpack 100 is more comfortable and safe, and is simple to use. The high-rise escape backpack 100 can be directly carried by the backpack body 200 on the back to escape. FIG. 1 is a first schematic structural diagram of a high-rise escape backpack 100 according to an embodiment of the present invention; FIG. 2 is a second structural schematic diagram of a high-rise escape backpack 100 according to the embodiment. Referring to FIG. 1 and FIG. 2 together, in the embodiment, the high-rise escape backpack 100 includes a backpack body 200 and a high-rise escape descender 300. A high-rise escape descender 300 is disposed in the backpack body 200. The backpack body 200 is placed on the user, and the backpack body 200 is disposed so that the user does not have a sense of restraint, which makes the use of the high-rise escape backpack 100 more comfortable.

The backpack body 200 includes a backpack body 220 and a backpack safety belt 210. The backpack safety belt 210 is coupled to the backpack body 220, and a high-rise escape descender 300 is disposed in the backpack body 220. The user attaches the backpack safety belt 210 to the user, and the setting of the backpack safety belt 210 makes the user feel uncomfortable, making the use of the high-rise escape backpack 100 more comfortable.

In detail, referring to FIG. 2, the backpack safety belt 210 includes a connecting strap 211, two shoulder straps 212, two waist straps 213 and two ankle straps 214 having a first end 215 and a first strap The two ends 216, one end of each shoulder strap 212 is connected to the backpack body 220, and the other end is disposed at the first end 215. One end of each waist strap 213 is connected to the backpack body 220, and the other end is disposed at the first end 215. One end of each ankle strap 214 is coupled to the backpack body 220, and the other end is disposed at the second end 216, and the shoulder strap 212, the waist strap 213, and the ankle strap 214 are sequentially disposed from top to bottom.

That is, the shoulder strap 212 is used to secure the user's shoulder, the ankle strap 214 is used to secure the user's ankle, and the waist strap 213 is used to secure the user's waist. When the user escapes at the upper level, the backpack body 220 is pulled by gravity, and the backpack body 220 moves upwards to the user, which may cause a sense of restraint to the user, and the high-rise escape backpack 100 cannot be safely and stably descended. Therefore, the backpack The safety belt 210 has an ankle strap 214, and the ankle strap 214 is arranged to bind the user's ankle to prevent the high-rise escape backpack 100 from moving upward during use, and the user's use is more comfortable, so that the upper level escapes. The backpack 100 can be safely and stably lowered.

The first end 215 is provided with a buckle 217, and the second end 216 is provided with a buckle. That is, in order to make the backpack body 220 uniformly bear the gravity of the user, the shoulder strap 212 and the waist strap 213 are connected to the first end 215 through the buckle 217, and the ankle strap 214 is connected to the second end 216 by the buckle. At the same time, the arrangement of the buckle 217 and the buckle can also adjust the length of the connection belt 211, and users of different heights and weights can use it.

FIG. 3 is a first cross-sectional view of the high-rise escape descent device 300 according to the embodiment of the present invention; FIG. 4 is a second cross-sectional view of the high-rise escape descent device 300 according to the embodiment; Schematic diagram of the structure of the device 300. Referring to FIG. 3 to FIG. 5, in the embodiment, the high-rise escape descent device 300 is disposed in the backpack body 220, and includes a rope 320, a roping mechanism 340, and a shifting mechanism 360. The rope 320 is disposed on the roping mechanism 340. The action of the brake is achieved by the action of the shifting mechanism 360.

The roping mechanism 340 includes a frame body 350 and a roping disk that is rotatably disposed on the frame body 350. The frame body 350 is the basis for mounting other components of the high-rise escape descent device 300. Referring to FIG. 3, the frame body 350 includes a first mounting plate 351 and a second mounting plate 352 disposed opposite to each other, and an end cover 353. The roping disk is disposed between the first mounting plate 351 and the second mounting plate 352. The rope tray can be rotated relative to the first mounting plate 351 and the second mounting plate 352. The end cover 353 is disposed on a side of the second mounting plate 352 away from the first mounting plate 351, that is, the first mounting plate 351 and the second mounting. The plate 352 and the end cover 353 are sequentially disposed.

The first mounting plate 351 may be a back plate, the second mounting plate 352 may be a panel, and the end cover 353 is disposed on a side of the panel away from the back plate, that is, when the user uses the high-rise escape descent device 300, the first near the back A mounting plate 351 is a back plate, and a second mounting plate 352 away from the back is a panel. The end cover 353 is disposed on a side of the panel away from the back plate, and does not cause crushing to the user, and the user can comfortably, safely and smoothly descend.

A plurality of connecting rods are disposed between the first mounting plate 351 and the second mounting plate 352. The two ends of the connecting rod are respectively connected with the first mounting plate 351 and the second mounting plate 352 to increase the strength of the high-rise escape descender 300. Install it.

A roping disc is disposed between the first mounting plate 351 and the second mounting plate 352. The cord 320 is wound around the roping disc and has one end fixed to the roping disc and the other end connected to the fixing member 310. When the high-rise escape descent device 300 is used, the fixing member 310 is hung on the previously installed hook to escape.

Referring to FIGS. 3 and 4, the roping disk includes a first baffle 342, a second baffle 343, a hollow roping ring 341 and a rotating shaft 344, a first baffle 342, a roping ring 341 and a second baffle 343 is disposed between the first mounting plate 351 and the second mounting plate 352, the first baffle 342 and the second baffle 343 are respectively disposed on two sides of the roping ring 341, and the first baffle 342 and the first mounting The plate 351 is in contact with the second baffle 343 and the second mounting plate 352. When the rope 320 is wound around the roping ring 341, the first baffle 342 and the second baffle 343 block the rope 320 and the first mounting plate 351. Contact with the second mounting plate 352 prevents friction between the cord 320 and the first mounting plate 351 and the second mounting plate 352.

In this embodiment, the rotating shaft 344 is rotatably disposed on the first mounting plate 351 and the second mounting plate 352 through the first baffle 342 and the second baffle 343, and the rotating shaft 344 is disposed in the roping disk, and the user is from the upper layer. When the jump is made, the rope 320 is continuously stretched, so that the reel of the rope 320 is continuously rotated, and the rotating shaft 344 in the reel is rotated.

The first mounting plate 351 and the second mounting plate 352 are each provided with a shaft groove. The shaft groove is provided with a sleeve. The two sleeves are disposed coaxially with the rotating shaft 344, and the rotating shaft 344 is disposed in the two sleeves. It is convenient to set the rotating shaft 344 to make the rotating shaft 344 easier to rotate.

The shifting mechanism 360 is disposed in the end cover 353, so that the structure of the entire high-rise escape descent device 300 is more compact and reasonable, and does not affect the appearance of the high-rise escape descent device 300, so that the high-rise escape descent device 300 can be safely and stably descended. .

FIG. 6 is a schematic structural view of a shifting mechanism 360 according to an embodiment of the present invention; FIG. 7 is a schematic structural view of an end cap 353 according to the embodiment. Referring to FIGS. 6 and 7, in the present embodiment, the shifting mechanism 360 includes a driving wheel 361 and at least one speed reducing mechanism 370 that move in synchronization with the roping disc, that is, the driving wheel 361 is disposed on the rotating shaft 344 away from the roping ring 341. At one end, when the roping ring 341 is rotated, the first baffle 342 and the second baffle 343 connected to the roping ring 341 are rotated, and the rotating shaft 344 connected to the first baffle 342 and the second baffle 343 is generated. Rotate to rotate the drive wheel 361 on the drive shaft.

Each of the speed reduction mechanisms 370 includes a driven wheel 371 that meshes with the driving wheel 361, a connecting shaft 372 that is disposed on the driven wheel 371, a friction wheel 373, and a friction portion 374 for generating a frictional force with the frame body 350. The diameter of the driving wheel 361 The friction wheel 373 is disposed on a side of the connecting shaft 372 away from the driven wheel 371, and the friction portion 374 is located between the friction wheel 373 and the frame body 350, that is, the friction portion 374 is located on the friction wheel 373 and the end cover. Between 353, that is, the connecting shaft 372, the friction wheel 373, the friction portion 374, and the end cover 353 are disposed in order from the inside to the outside.

The fixing member 310 is hung on the pre-installed hook. When the user jumps from the high-rise, the rope 320 is continuously stretched out, so that the roping disc of the rope 320 is continuously rotated, thereby driving the driving wheel that synchronously moves with the roping disc. When the diameter of the driving wheel 361 is larger than the diameter of the driven wheel 371, the driven wheel 371 that meshes with the driving wheel 361 rotates more rapidly, so that the connecting shaft 372 rotates rapidly, and the friction wheel that is sleeved on the connecting shaft 372 373 also rotates rapidly. When the friction portion 374 rotates at a high speed due to the centrifugal force, the friction portion 374 moves toward the radial direction away from the friction wheel 373, that is, toward the direction away from the friction wheel 373, thereby bringing the friction portion 374 into contact with the end cover 353. A frictional force is generated between the friction portion 374 and the end cap 353, thereby achieving the purpose of slowing down the descending speed. Through the friction between the friction portion 374 and the end cover 353, the user can safely and stably descend to achieve the purpose of high-level escape.

Preferably, the diameter of the driving wheel 361 is 5-8 times the diameter of the driven wheel 371. On the basis of being able to be effectively installed, the rotational speed of the driven wheel 371 is doubled as much as possible so that braking can be achieved, and the user can be safely and stably Landing.

Referring to FIG. 4 and FIG. 5, in the embodiment, the end cover 353 includes a cover plate 354 and a side wall plate 355 surrounding the outer periphery of the cover plate 354. The side of the side wall plate 355 away from the cover plate 354 is disposed at the second side. The mounting plate 352 rubs against the inner wall of the side wall plate 355 when the friction portion 374 moves in the radial direction of the friction wheel 373, so that a frictional force is generated between the friction portion 374 and the side wall plate 355, thereby the high-rise escape descent device 300. Brake.

In this embodiment, the inner wall of the side wall plate 355 which is in contact with the friction portion 374 is provided with a plurality of annular groove walls 381, that is, the inner wall of the side wall plate 355 which is in contact with the friction portion 374 is not smooth, and the friction portion can be increased. The friction between the 374 and the side wall plate 355; at the same time, if the annular groove wall 381 is not provided, when the friction portion 374 rubs against the side wall plate 355 for a long time, the friction portion 374 is rubbed on the surface. The resulting powder adheres to the inner wall of the side wall panel 355 to cause it to slip. Therefore, an annular groove wall 381 is provided on the inner wall of the side wall plate 355, and the powder generated by the friction falls into the annular groove wall 381. The friction between the friction portion 374 and the inner wall of the side wall plate 355 is not affected, and the purpose of uniform velocity reduction is achieved.

Preferably, two speed reduction mechanisms 370 are provided, and two speed reduction mechanisms 370 are respectively disposed on both sides of the driving wheel 361. That is, the driven wheel 371, the friction wheel 373 and the friction portion 374 are both provided. The driven wheel 371, the friction wheel 373 and the friction portion 374 of each speed reduction mechanism 370 are connected in the same manner, and the axes of the two driven wheels 371 pass through the driving wheel 361. The axis is symmetrically arranged to further improve the safety of the use of the high-rise escape descent device 300. When the user uses the high-level escape descent device 300, the user can be safer and more stable, thereby avoiding panic when the user uses the device.

Cooperating with the speed reduction mechanism 370 is that the side wall plate 355 is two annular side plates, and the friction portion 374 of one speed reduction mechanism 370 rubs against the inner wall of one side plate when moving in the radial direction of the corresponding friction wheel 373. When the brake is applied, the friction portions 374 of the two speed reduction mechanisms 370 can be rubbed with the side plates to further improve the braking effect of the high-rise escape descent device 300, and further improve the safety of the high-rise escape descent device 300. Achieve a smoother drop effect.

Preferably, the friction portion 374 of each of the speed reduction mechanisms 370 is provided with two, and the two friction portions 374 are spaced apart and connected by a spring 378. When the friction wheel 373 rotates at a high speed, the two friction portions 374 move toward the direction away from the friction wheel 373. If the rotation speed of the friction wheel 373 is too fast, the centrifugal force of the friction portion 374 is excessive, and the friction portion 374 is Will be in close contact with the side wall plate 355, so that the locking phenomenon is easily generated, and friction between the friction portion 374 and the side wall plate 355 is not generated, so that a spring 378 is provided between the two friction portions 374, that is, two Two springs 378 are disposed between the friction portions 374, and two ends of each spring 378 are respectively connected with a friction portion 374. When the contact between the friction portion 374 and the side wall plate 355 is too close, due to the action of the spring 378, A pulling force is generated on the friction portion 374, and the friction portion 374 is pulled back, and the friction portion 374 and the side wall plate 355 are positioned at an appropriate position to be rubbed against each other to achieve the purpose of braking.

Preferably, the outer wheel surface of the friction wheel 373 is provided with two mounting grooves 377, and one friction block 375 is respectively disposed in one mounting groove 377. By the arrangement of the mounting groove 377, the friction portion 374 can be restricted toward the driving wheel 361 or the cover plate 354. The directional movement causes the friction portion 374 to move only in the radial direction away from the friction wheel 373 due to the centrifugal force, and the frictional force with the side wall plate 355 of the end cover 353 is greater, and the descending effect is better, thereby achieving The purpose of safe and stable decline.

More preferably, the friction portion 374 includes a friction block 375 disposed in the mounting groove 377 and located outside the friction wheel 373, and the friction plate 376 is disposed outside the friction block 375 and located in the side wall plate 355. The friction block 375 is a metal friction block, and the friction plate 376 is an asbestos friction plate. The gravity of the metal friction block is large. In the case where the friction wheel 373 rotates at a high speed, the centrifugal force of the friction block 375 is larger, and the friction block 375 is better to move away from the friction wheel 373; and the arrangement of the asbestos friction plate can be The friction between the friction plate 376 and the side wall plate 355 is increased to further improve the lowering stability of the high-rise escape descent device 300. At the same time, the asbestos friction plate has a good high temperature resistance and can withstand the high temperature generated by the friction force. Increase the service life of the friction plate 376.

Preferably, a fixing ring 379 is disposed at both ends of the friction block 375 of each friction portion 374, and two ends of the spring 378 are respectively installed in the fixing ring 379 of the two friction blocks 375, and the spring 378 is installed, and two The elastic force distribution between the friction blocks 375 is more uniform. In the present embodiment, the friction piece 376 and the friction block 375 are connected by screws, and can also be joined by bonding, which can be combined and easily disassembled and replaced.

FIG. 8 is a first schematic structural view of a rope limiting device 400 according to the embodiment. FIG. 9 is a second structural schematic diagram of the rope limiting device 400 according to the embodiment. Referring to FIG. 8 and FIG. 9 together, in the embodiment, the roping mechanism 340 further includes a rope limiting device 400. Both ends of the rope limiting device 400 are fixed to the first mounting plate 351 and the second mounting plate 352. A limit hole 410 is disposed on the rope limiting device 400, and the rope 320 is connected to the fixing member 310 through the limiting hole 410. The orientation of the rope 320 is varied by the arrangement of the rope restraint 400 to ensure that the cord 320 is centered on the high rise escape descent 300.

Preferably, the rope limiting device 400 includes a sliding roller assembly 420 and a rope baffle 430. Both ends of the sliding roller assembly 420 and the rope baffle 430 are fixed to the first mounting plate 351 and the second mounting plate 352, and the rope baffle 430 Located above the sliding roller assembly 420, the rope baffle 430 is provided with a limiting hole 410, and the rope 320 is sequentially connected to the fixing member 310 through the sliding roller and the limiting hole 410. The direction of the rope 320 is changed by the arrangement of the sliding roller assembly 420 and the rope baffle 430, ensuring that the rope 320 is at the center of the high-rise escape descent 300, while the arrangement of the sliding roller assembly 420 can reduce the rope 320 and the rope baffle The friction of 430 avoids the wear of the rope 320 and prolongs the service life of the high-rise escape descent 300.

More preferably, the sliding roller assembly 420 includes two first sliding rollers 421 and two second sliding rollers 422, the first sliding roller 421 being disposed closer to the planetary reduction mechanism 370 than the second sliding roller 422, that is, using the upper layer to escape At the time of the backpack 100, the second sliding roller 422, the first sliding roller 421 and the planetary reduction mechanism 370 are disposed in order from top to bottom, and both ends of the two second sliding rollers 422 are disposed on the rope baffle 430, two first Two ends of the sliding roller 421 are respectively disposed on the first mounting plate 351 and the second mounting plate 352, the axes of the two first sliding rollers 421 intersect with the axes of the two second sliding rollers 422, and one end of the rope 320 is mounted on the roping On the disk, the other end passes through the middle of the two first sliding rollers 421, passes through the middle of the two second sliding rollers 422, passes through the limiting hole 410, and is connected to the fixing member 310 through the backpack body 220.

By the arrangement of the two first sliding rollers 421 and the two second sliding rollers 422, preferably the axes of the two first sliding rollers 421 are perpendicular to the axes of the two second sliding rollers 422, so that the ropes 320 can be made in two first The sliding roller 421 and the two second sliding rollers 422 shuttle between each other, which has a certain restriction on the movement direction of the rope 320. When the single-reduction high-rise escape backpack is used, the rope 320 is prevented from being stuck, the sliding is smooth, and the rope 320 is avoided. The amplitude swings, reduces the frictional force on the rope 320, increases the service life of the rope 320, and improves the safety of use of the high-rise escape backpack 100.

Preferably, the two first sliding rollers 421 are respectively one big and one small, and the rope 320 is wound from the larger first sliding roller 421 and passes between the two second sliding rollers 422 to further avoid the rope. The shaking of 320 improves the safety and comfort of the high-rise escape backpack 100.

In this embodiment, the rope 320 is a steel wire rope, which is not burnt, and has high strength and long service life. Or other ropes 320 capable of high-rise descent are also within the scope of this application.

The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the foregoing embodiments, and the description of the embodiments and the description are only to explain the principles of the present application. Various changes and modifications are intended to fall within the scope of the appended claims. The scope of the claims is defined by the appended claims and their equivalents.

Industrial applicability

The high-level escape backpack of the present application carries the backpack body on the user body, and the setting of the backpack body makes the user have no sense of restraint, so that the use of the high-rise escape backpack is more comfortable. The setting of the frame body can realize the installation of the high-level escape descending device and the backpack body. When the user jumps from the high-rise, the rope is continuously pulled out from the body of the backpack, so that the rope reel of the rope is continuously rotated, thereby driving and The driving wheel of the synchronous movement of the roping disc rotates. Since the diameter of the driving wheel is larger than the diameter of the driven wheel, the driven wheel that meshes with the driving wheel rotates more rapidly, so that the connecting shaft rotates rapidly and the friction is set on the connecting shaft. The wheel also rotates rapidly. Due to the centrifugal force, when the friction part rotates at a high speed, the friction part moves toward the radial direction away from the friction wheel, that is, away from the friction wheel, so that the friction part contacts the frame body, and the friction part and the frame body Friction is generated between them to achieve the purpose of slowing down the speed. Through the friction between the friction part and the frame body, the user can safely and stably descend to achieve the purpose of high-level escape, and the use of the high-level escape backpack is more comfortable through the setting of the backpack body.

Claims

A high-rise escape backpack, comprising: a backpack body and a high-rise escape descender, the high-rise escape descender comprising a rope, a roping mechanism and a shifting mechanism, the roping mechanism comprising a frame body and a rotating arrangement a roping disc of the rack body, the rack body is disposed in the body of the backpack, the rope is wound around the roping disc and one end is fixed to the roping disc, and the other end is passed through the backpack body and the fixing member Connecting, the shifting mechanism includes a driving wheel and at least one speed reducing mechanism that move in synchronization with the roping disc, each of the speed reducing mechanisms includes a driven wheel that meshes with the driving wheel, and a connection provided to the driven wheel a shaft, a friction wheel and a friction portion for generating a frictional force with the frame body, wherein the diameter of the driving wheel is larger than a diameter of the driven wheel, and the friction wheel is sleeved away from the driven wheel away from the driven wheel On one side, the friction portion is located between the friction wheel and the frame.
The high-rise escape backpack according to claim 1, wherein the backpack body comprises a backpack body and a backpack safety belt, the frame body is disposed in the backpack body, and the rope passes through the backpack body and the seat. The fixing member is connected, and the backpack safety belt is coupled to the backpack body.
The high-rise escape backpack according to claim 2, wherein the backpack safety belt is coupled to the backpack body, and the high-rise escape descender is disposed in the backpack body.
The high-rise escape backpack according to claim 2, wherein the backpack safety belt comprises a connecting belt, two shoulder straps, two waist straps and two ankle straps, the strap having a One end and a second end, one end of each of the shoulder straps is connected to the backpack body, and the other end is disposed at the first end, one end of each of the waist straps is connected to the backpack body, and the other end is Provided at the first end, one end of each of the crotch straps is connected to the backpack body, the other end is disposed at the second end, and the shoulder strap, the waist strap and the seat The crotch straps are arranged from top to bottom.
The high-rise escape backpack according to claim 4, wherein the first end is provided with a buckle, the second end is provided with a buckle; the shoulder strap and the waist strap pass the The buckle is connected to the first end, and the crotch strap is connected to the second end by the buckle.
The high-rise escape backpack according to any one of claims 1 to 5, wherein the outer wheel surface of the friction wheel is provided with a mounting groove, and the friction portion is disposed in the mounting groove and outside the friction wheel. .
The high-rise escape backpack according to claim 6, wherein the friction portion is provided with two, and the two friction portions are spaced apart and connected by a spring.
The high-rise escape backpack according to claim 7, wherein the friction portion comprises a friction block and a friction plate, the friction block is disposed in the mounting groove and located outside the friction wheel, and the friction plate is disposed Outside the friction block and in the frame body, two ends of the spring are respectively disposed on the friction blocks of the two friction portions.
The high-rise escape backpack according to claim 8, wherein the friction block is a metal friction block, and the friction plate is an asbestos friction plate.
The high-rise escape backpack according to claim 8, wherein a fixing ring is disposed at both ends of the friction block of each of the friction portions, and both ends of the spring are respectively mounted on the two friction blocks. Inside the fixed ring
The high-rise escape backpack according to claim 6, wherein the outer wheel surface of the friction wheel is provided with two mounting slots, and one of the friction blocks is disposed in one of the mounting slots.
The high-rise escape backpack according to claim 1, wherein the speed reduction mechanism is provided with two, and the two speed reduction mechanisms are respectively disposed on two sides of the driving wheel.
The high-rise escape backpack according to claim 7, wherein the frame body comprises an end cover and oppositely disposed first mounting plates and second mounting plates, wherein the roping reels are disposed on the first mounting plate and Between the second mounting plates, the end cover is disposed on a side of the second mounting plate that is away from the first mounting plate, and the shifting mechanism is disposed in the end cover.
The high-rise escape backpack according to claim 13, wherein the roping mechanism further comprises a rope limiting device, and both ends of the rope limiting device are fixed to the first mounting plate and the second The mounting plate is provided with a limiting hole on the rope limiting device, and the rope is connected to the fixing member through the limiting hole.
The high-rise escape backpack according to claim 14, wherein the rope limiting device comprises a sliding roller assembly and a rope baffle, and both ends of the sliding roller assembly and the rope baffle are fixed to the first a mounting plate and the second mounting plate, the rope baffle is located above the sliding roller assembly, and the rope baffle is provided with a limiting hole, the rope passing through the sliding roller and the limiting hole in sequence Connected to the fixing member.
A high-rise escape backpack according to claim 15, wherein said sliding roller assembly comprises two first sliding rollers and two second sliding rollers, the axes of said two first sliding rollers and said two The axis of the second sliding roller is perpendicular.
The high-rise escape backpack according to claim 16, wherein the two first sliding rollers are different in size.
The high-rise escape backpack according to claim 13, wherein the end cover comprises a cover plate and a side wall plate surrounding the outer periphery of the cover plate, and a side of the side wall plate remote from the cover plate Provided on the second mounting plate, the friction portion rubs against the inner wall of the side wall plate when moving in the radial direction of the friction wheel.
The high-rise escape backpack according to claim 18, wherein the side wall plate is two annular side plates, and the friction portion of one of the speed reduction mechanisms moves in a radial direction of the corresponding friction wheel. Rubbing against the inner wall of one of the side panels.