CN214435911U

CN214435911U - Descent control device

Info

Publication number: CN214435911U
Application number: CN202022874347.2U
Authority: CN
Inventors: 赵宏斌; 张锋; 柴崑皓; 贺曾; 侯忠雪; 张俊峰; 金鑫; 王立恒; 荣诗嘉; 荣杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-10-22
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a descent control device, which comprises a shell, a rope wheel and a fixed shaft, wherein the rope wheel is screwed on the fixed shaft; one side of the rope wheel is provided with an escapement speed reducing unit and a friction speed reducing unit, and the other side of the rope wheel is provided with a cycloid speed reducing unit; the escapement speed reduction unit comprises an escapement wheel and an escapement fork, the escapement wheel and the rope wheel are coaxially fixed, and the escapement fork is in shaft connection fit with the shell; the friction speed reducing unit comprises a friction sleeve, a U-shaped friction plate and an adjusting rod for adjusting the tightness of the friction plate; the cycloid speed reduction unit comprises a gear shell and a cycloid wheel which are matched with each other, the gear shell and the rope wheel are coaxially fixed, and the cycloid wheel is matched with a pin column fixed on the shell through a hole on the cycloid wheel. Multiple speed reduction mode combines together in this scheme, and it is reliable to slow down, and has reduced the friction and has produced the heat, has improved the security. Meanwhile, when the structure is used, a user can adjust the descending speed, the controllability is improved, and the safety of the user is improved.

Description

Descent control device

Technical Field

The utility model belongs to the technical field of the equipment of fleing, concretely relates to ware slowly falls, the use of decline when mainly used people are in high building or other high altitude places emergency escape.

Background

With the development of economy, tall buildings are coming across the ground. When dangerous situations such as fire, earthquake and the like occur in high buildings or high altitudes, personnel need to escape or evacuate by self rescue in an emergency. Therefore, various high altitude descent control devices attract attention of people in various fields.

The key of the high-altitude descent control device technology is slow descent, and a slow descent device capable of effectively generating damping action is required to achieve slow descent. At present, the types of devices are many at home and abroad, but actually, the devices are not many which are put on the market and can be used by people at ease. The reason is mainly as follows: one is that some slow-descending devices are made by hydraulic pressure or pneumatic pressure. This often results in a complex structure and high cost; and the other is that the power is used as power. But power is often difficult to guarantee in emergency or critical situations; thirdly, most of existing descent control devices cannot automatically control speed and start and stop in the using process, and the confusion of users is increased.

Patent No. 201821453899.2, with the patent names: in the utility model patent of "a ware slowly falls in high altitude", the mode that adopts ratchet, pawl complex similar escapement to realize slowing down, and the effect is fine, but its main part adopts spiral column core wheel, and is bulky.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: provides a descent control device which is used for solving the problems in the prior art.

The utility model discloses a realize through following technical scheme: a descent control device is characterized in that: the rope wheel is screwed on the fixed shaft; one side of the rope wheel is provided with an escapement speed reducing unit and a friction speed reducing unit, and the other side of the rope wheel is provided with a cycloid speed reducing unit; the escapement speed reduction unit comprises an escapement wheel and an escapement fork which are matched with each other, the escapement wheel and the rope wheel are coaxially fixed, and the escapement fork is in shaft connection and matching with the shell; the friction speed reduction unit comprises a friction sleeve in screwed fit with the fixed shaft, a U-shaped friction plate sleeved outside the friction sleeve and an adjusting rod for adjusting the tightness of the friction plate; the cycloid speed reduction unit comprises a gear shell and a cycloid wheel which are matched with each other, the gear shell and the rope wheel are coaxially fixed, and the cycloid wheel is matched with a pin column fixed on the shell through a hole on the cycloid wheel.

Further: a safety belt is disposed outside the housing.

Further: the adjusting rod is connected with one side of the U-shaped friction plate in a screwing mode and is in threaded connection with the other side of the U-shaped friction plate, and the portion, extending out of the shell, of the adjusting rod is connected with the rotating handle.

The utility model has the advantages that: the scheme adopts a structure combining multiple speed reduction modes, so that the speed reduction is reliable, the friction heat generation quantity is reduced, and the safety is improved. Meanwhile, the rope wheel is used as a power source, so that the whole size is small, the structure is simple, and the reliability is high. When the structure is used, the user can actively open and descend by rotating the handle and can adjust the descending speed, the controllability is increased, and the safety of the user is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a friction deceleration unit;

fig. 3 is a schematic structural view of the escapement deceleration unit;

fig. 4 is a schematic structural view of the cycloid speed reduction unit.

The sequence numbers in the figures illustrate: 1 is a shell; 2 is a rope wheel; 3 is a fixed shaft; 4 an escape deceleration unit, 41 an escape wheel, 42 an escape fork and 43 a torsion spring; 5 is a friction speed reducing unit, 51 is a friction sleeve, 52 is a friction plate, 53 is an adjusting rod, 54 is a rotating handle, and 55 is a limiting fixture block;

a cycloid speed reduction unit 6, a gear shell 61, a cycloid wheel 62, a hole 63 and a pin 64; and 7 is a safety belt.

Detailed Description

As shown in fig. 1-4, the descent control device of the present invention comprises a housing 1, a fixed shaft 3 is disposed in the middle of the housing, and a rope pulley 2 is screwed with the fixed shaft; the rope pulley comprises a roller for winding the safety rope 21 and baffle plates arranged at two sides of the roller, the baffle plates are used for limiting the safety rope and can also be used as a fixing part for fixing the speed reducing unit; an escapement speed reduction unit 4 and a friction speed reduction unit 5 are arranged on one side of the rope wheel, and a cycloid speed reduction unit 6 is arranged on the other side of the rope wheel; the escapement speed reduction unit 4 comprises an escapement wheel 41 and an escapement fork 42 which are matched with each other, the escapement wheel is coaxially fixed with a baffle plate of the rope wheel, and the escapement fork is axially matched with the shell; the escape wheel is a gear, the front end of the escape fork is provided with two fixture blocks, the two fixture blocks are contacted with teeth on the escape wheel at intervals, the fixture blocks move outwards under the pushing of the teeth when in contact, when one fixture block is separated from the teeth, the other fixture block is contacted with the teeth to form a swinging process, the fixture blocks swing repeatedly, and resistance is continuously provided for the teeth, so that the aim of reducing speed is fulfilled; in order to facilitate the swing of the escapement fork, a torsion spring can be sleeved on a shaft matched with the shell; the friction speed reducing unit 5 comprises a friction sleeve 51 coaxially fixed with the rope pulley, a U-shaped friction plate 52 sleeved outside the friction sleeve and an adjusting rod 53 for adjusting the tightness of the friction plate, the adjusting rod is matched with the upper part of the friction plate, and the size of an opening of the friction plate, namely the tightness matched with the friction sleeve, can be adjusted through the adjusting rod, so that the magnitude of friction force is adjusted, the friction force is equivalent to a braking function, and the descending speed is controlled; the cycloid speed reduction unit 6 comprises a gear shell 61 and a cycloid wheel 62 which are matched with each other, the gear shell is fixed on the rope wheel, the cycloid wheel is located in a groove cavity of the gear shell, a plurality of holes 63 are formed in the cycloid wheel and matched with pin columns 64 fixed on the shell through the holes, and the inner diameter of each hole is larger than the diameter of each pin column, so that the cycloid wheel can move within a certain range. When the structure is in a descending state, the gear shell rotates, the teeth inside the gear shell are in contact with the teeth outside the cycloidal gear to generate resistance, the cycloidal gear is pushed to move, the cycloidal gear can only move in a small range under the influence of the pin, and other teeth can continuously generate contact and resistance during movement, so that the speed reduction effect is achieved.

Preferably: a safety strap 7 is provided on the outside of the housing for securing the structure to the user. Furthermore, the bicycle is also provided with a handle and a pedal, so that a user can conveniently hold the bicycle by hands and pedal by feet, the stability is improved, and the nervous mood is relieved. The handle and the pedal are directly fixed on the shell or are telescopically arranged on the shell.

Preferably: the adjusting rod is screwed with one side of the U-shaped friction plate and is in threaded connection with the other side of the U-shaped friction plate; or the two sides are connected with the threads, but the thread directions are opposite; the adjustment rod extends out of the housing portion and is connected to a rotary handle 54.

Preferably: the adjusting rod is provided with a limiting fixture block 55, the limiting fixture block is in threaded connection with the adjusting rod and is in sliding connection fit with the shell, and the rope wheel is provided with a fixing block matched with the limiting fixture block. When the rope wheel is in a state of being tightly matched with the friction plate and the friction sleeve, the rope wheel is limited from rotating.

Preferably: the adjusting rod is in screwed connection and matching with the shell through the bearing seat so as to improve the stability of the adjusting rod.

The utility model discloses the structure adopts the structure that multiple speed reduction mode combined together, makes to slow down reliably, and has reduced the friction and has produced the heat, has improved the security. Meanwhile, the rope wheel is used as a power source, so that the whole size is small, the structure is simple, and the reliability is high. When the structure is used, the user can actively open and descend by rotating the handle and can adjust the descending speed, the controllability is increased, and the safety of the user is improved.

Claims

1. A descent control device is characterized in that: the rope wheel is screwed on the fixed shaft, one side of the rope wheel is provided with an escapement speed reducing unit and a friction speed reducing unit, and the other side of the rope wheel is provided with a cycloid speed reducing unit;

the escapement speed reduction unit comprises an escapement wheel and an escapement fork which are matched with each other, the escapement wheel and the rope wheel are coaxially fixed, and the escapement fork is in shaft connection and matching with the shell;

the friction speed reduction unit comprises a friction sleeve in screwed fit with the fixed shaft, a U-shaped friction plate sleeved outside the friction sleeve and an adjusting rod for adjusting the tightness of the friction plate;

the cycloid speed reduction unit comprises a gear shell and a cycloid wheel which are matched with each other, the gear shell and the rope wheel are coaxially fixed, and the cycloid wheel is matched with a pin column fixed on the shell through a hole on the cycloid wheel.

2. The descent control device of claim 1, wherein: a safety belt is disposed outside the housing.

3. The descent control device of claim 1, wherein: the adjusting rod is connected with one side of the U-shaped friction plate in a screwing mode and is in threaded connection with the other side of the U-shaped friction plate, and the portion, extending out of the shell, of the adjusting rod is connected with the rotating handle.

4. The descent control device of claim 1, wherein: the rope wheel is characterized in that a limiting fixture block is arranged on the adjusting rod, the limiting fixture block is in threaded fit with the adjusting rod and is in sliding fit with the shell, and a fixing block matched with the limiting fixture block is arranged on the rope wheel.

5. The descent control device of claim 1, wherein: a torsion spring is provided between the pallet fork and the housing.