CN110975179A

CN110975179A - Panic quick-fall device

Info

Publication number: CN110975179A
Application number: CN201911255309.4A
Authority: CN
Inventors: 马恒; 吴芳芳; 李周选; 高义波; 韦一力; 薛迪龙; 杨丽莉; 周鑫卯
Original assignee: Zhejiang Zuoyi Electric Power Equipment Co ltd; Zhejiang Huadian Equipment Inspection Institute; State Grid Zhejiang Electric Power Co Ltd
Current assignee: Zhejiang Zuoyi Electric Power Equipment Co ltd; Zhejiang Huadian Equipment Inspection Institute; State Grid Zhejiang Electric Power Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-04-10
Anticipated expiration: 2039-12-10
Also published as: CN110975179B

Abstract

The invention relates to a panic quick-drop device, which comprises a body, a first cam and a second cam, wherein the first cam is rotationally connected to the body, a first gap is arranged between the first cam and the second cam, the body is also rotationally connected with a locking block, the locking block is arranged below the first cam, and convex teeth which are contacted with a rope are arranged on the locking block; the invention has the advantages that: through first rope, first cam and second cam twine the rope on the body with horizontal S type mode, and block the rope with the rope contact through the dogtooth on the locking piece, because the contact in-process of dogtooth and rope, the dogtooth has increased the frictional force with the rope, the locking quality has been improved, secondly, because the locking piece is connected for rotating with the body, the decline in-process is at the rope oscilaltion in-process, the rope drives the locking piece and slides from side to side on the body, thereby the effectual decline speed that slows down the rope, need not extra switch and trigger the opening of locking piece, the holistic structure has been simplified, the security performance has been improved.

Description

Panic quick-fall device

Technical Field

The invention relates to a panic-proof quick-falling device.

Background

In the field of high-rise fire fighting or work high above ground, it may happen that a person has to descend by means of a rope. The descending personnel can adopt a mode of directly grabbing the rope to climb, and although the rope is convenient, the requirements on physical strength and skills are high, and the rope is unsafe. At present, a special rope descender is arranged, a rope can be threaded in the rope descender, the descender is held by hands, the switch is opened, and then the rope descends, so that the safety is improved, the skill requirement of a user is reduced, and the physical strength is saved. However, the structure of the descender is not reasonable enough, if the user grips the switch all the time due to stress and the like, the descender is easy to descend too fast, even though the user may be in panic and lose his/her hands, and the descending speed is fast, and the landing impact is easy to generate.

Disclosure of Invention

The invention aims to provide a panic-proof quick-falling device which can effectively slow down the falling speed, prevent a user from scaring and losing hands and improve the safety performance.

In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides a ware falls fast in disorder of preventing hurry, includes body, first cam and second cam, be equipped with the lateral wall of injecing rope traffic route on the body, first cam rotates to be connected on the body, second cam fixed connection is on the body, be equipped with first clearance between first cam and the second cam, wear out the body and set up downwards behind the second cam along the first clearance after the one end of rope, wear out the body and upwards set up behind the first cam along the other end of rope behind the first clearance, it is connected with the locking piece still to rotate on the body, the locking piece sets up the below at first cam, be equipped with the dogtooth with the rope contact on the locking piece, still be equipped with the through-hole of connecting the safety catch on the body.

Preferably, the one end of locking piece is rotated through first pivot and is connected on the body, the other end of locking piece is equipped with the inclination, the dogtooth sets up on the inclination, and first pivot and locking piece formula structure as an organic whole.

Preferably, the body is further provided with a second rotating shaft, and the first cam is provided with a notch matched with the second rotating shaft.

Preferably, the first cam is rotatably connected to the body through a third rotating shaft, and the top end of the third rotating shaft is higher than the top end of the first cam.

Preferably, the speed reducer further comprises a cover plate, and the cover plate is rotatably connected to the second cam through a first pin shaft.

Preferably, the cover plate is provided with a limiting groove, the limiting groove is provided with a first limiting part and a second limiting part, the first limiting part is in contact with the second rotating shaft, and the second limiting part is in contact with the third rotating shaft.

Preferably, the cover plate is further provided with a mounting hole matched with the through hole.

Preferably, the body is further provided with a handle, and the handle and the body are of an integrated structure.

In conclusion, the invention has the advantages that: through first rope, first cam and second cam twine the rope on the body with horizontal S type mode, and block the rope through dogtooth and rope contact on the locking piece, because the contact in-process of dogtooth and rope, the dogtooth has increased the frictional force with the rope, the locking quality has been improved, secondly, because the locking piece is connected for rotating with the body, the decline in-process is at the rope oscilaltion in-process, the rope drives the locking piece and rotates on the body, thereby the effectual decline speed that slows down the rope, need not the opening that extra switch triggered the locking piece, the holistic structure has been simplified, the security performance has been improved, secondly, the lateral wall that is equipped with on the body, can effectual operation route of injecing the rope, prevent the separation of decline in-process rope and body, the security performance has further been improved.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of a panic-preventing speed reducer of the present invention;

fig. 2 is a schematic structural view of the rope inserted into the speed reducer when the cover plate is opened.

Reference numerals:

the device comprises a body 1, a through hole 11, a second rotating shaft 12, a first cam 2, a notch 21, a third rotating shaft 22, a second cam 3, a first gap 4, a locking block 5, a convex tooth 51, a first rotating shaft 52, an inclination angle 53, a cover plate 6, a first pin shaft 61, a limiting groove 62, a first limiting part 63, a second limiting part 64, a mounting hole 65, a handle 7 and a rope 8.

Detailed Description

As shown in fig. 1 and 2, a scratchy speed reducer comprises a body 1, a first cam 2 and a second cam 3, wherein a side wall for limiting a running path of a rope 8 is arranged on the body 1, the first cam 2 is rotatably connected to the body 1, the second cam 3 is fixedly connected to the body 1, a first gap 4 is formed between the first cam 2 and the second cam 3, one end of the rope 8 penetrates out of the body 1 and is arranged downwards after passing through the first gap 4 and the second cam 3, the other end of the rope 8 penetrates out of the body 1 and is arranged upwards after passing through the first gap 4 and the first cam 2, a lock block 5 is further rotatably connected to the body 1, the lock block 5 is arranged below the second cam 3, a convex tooth 51 in contact with the rope 8 is arranged on the lock block 5, and a through hole 11 for connecting a safety buckle is further arranged on the body 1.

The rope 8 is wound on the body 1 in a transverse S-shaped mode through the first rope 8, the first cam 2 and the second cam 3, the rope 8 is clamped through the contact of the convex teeth 51 on the locking block 5 and the rope 8, because the convex teeth 51 increase the friction force with the rope 8 during the contact process of the convex teeth 51 and the rope 8, the locking quality is improved, secondly, as the locking block 5 is rotationally connected with the body 1, the rope 8 drives the locking block 5 to rotate on the body 1 in the up-and-down lifting process of the rope 8 in the descending process, thereby effectively slowing down the descending speed of the rope 8, without needing an additional switch to trigger the opening of the locking block 5, simplifying the integral structure, improving the safety performance, secondly, the lateral wall that is equipped with on body 1 can effectual definite rope 8's moving path, prevents to descend the separation of in-process rope 8 and body 1, has further improved the security performance.

The one end of locking piece 5 is rotated through first pivot 52 and is connected on body 1, the other end of locking piece 5 is equipped with inclination 53, dogtooth 51 sets up on inclination 53, and first pivot 52 and locking piece 5 formula structure as an organic whole, can realize locking piece 5's quick installation, set the dogtooth 51 to inclination 53 on, can increase the area of contact of dogtooth 51 and rope 8, further improved rope 8, set first pivot 52 and locking piece 5 formula structure as an organic whole, can simplify the mounting process of first pivot 52 and locking piece 5, improve the joint strength of locking piece 5 and first pivot 52, ensure to rotate the fixed quality of in-process locking piece 5.

Still be equipped with second pivot 12 on the body 1, be equipped with on the first cam 2 with the breach 21 of 12 looks adaptations of second pivot, can ensure the rotation effect of rope 8 in second pivot 12, realized about the steady rising of rope 8 in body 1, first cam 2 rotates through third pivot 22 and connects on body 1, and the top of third pivot 22 is higher than the top of first cam 2, can realize that first cam 2 is steady to be installed on body 1, can avoid the separation of first cam 2 and body 1.

The speed reducer also comprises a cover plate 6, the cover plate 6 is rotationally connected to the first cam 2 through a first pin shaft 61, the whole speed reducer can be opened or closed through the rotation of the cover plate 6, thereby allowing or forbidding the insertion or extraction of the rope 8, the operation is simple and convenient, the cover plate 6 is provided with a limit groove 62, the limit groove 62 is provided with a first limit part 63 and a second limit part 64, the first limit part 63 contacts with the second rotating shaft 12, the second limit part 64 is contacted with the third rotating shaft 22, the closed position of the cover plate 6 can be effectively limited, the limit at double positions can be realized, the limit effect is improved, still be equipped with the mounting hole 65 with through-hole 11 looks adaptation on the apron 6, when the safety is detained and is connected, can realize apron 6 locking on body 1, can prevent that apron 6 and body 1 from taking place relative rotation, improve the fixed quality of apron 6.

Still be equipped with handle 7 on the body 1, just handle 7 and body 1 formula structure as an organic whole, the whole body 1 of being convenient for take, make things convenient for quick the inserting of operating personnel and extract rope 8, set handle 7 and body 1 formula structure as an organic whole, can simplify the mounting process between handle 7 and the body 1, and improved the intensity of handle 7 with the body 1 junction, prevent the separation of handle 7 and body 1.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims

1. A panic fast descent device is characterized in that: including body, first cam and second cam, be equipped with the lateral wall of injecing rope traffic route on the body, first cam rotates to be connected on the body, second cam fixed connection is on the body, be equipped with first clearance between first cam and the second cam, wear out the body and set up downwards behind the first clearance after following the second cam in the one end of rope, wear out the body and upwards set up behind the first cam in the other end of rope behind first clearance, still rotate on the body and be connected with the locking piece, the locking piece sets up the below at first cam, be equipped with the dogtooth with rope contact on the locking piece, still be equipped with the through-hole of connecting the safety knot on the body.

2. A panic exit velocity reduction device according to claim 1, characterized in that: one end of the locking block is rotatably connected to the body through a first rotating shaft, the other end of the locking block is provided with an inclination angle, the convex teeth are arranged on the inclination angle, and the first rotating shaft and the locking block are of an integrated structure.

3. A panic exit velocity reduction device according to claim 1, characterized in that: the body is further provided with a second rotating shaft, and the first cam is provided with a notch matched with the second rotating shaft.

4. A panic exit velocity reduction device according to claim 3, characterized in that: the first cam is rotatably connected to the body through a third rotating shaft, and the top end of the third rotating shaft is higher than the top end of the first cam.

5. A panic exit velocity reduction device according to claim 4, characterized in that: the speed reducer further comprises a cover plate, and the cover plate is rotatably connected to the second cam through a first pin shaft.

6. A panic exit velocity reduction device according to claim 5, characterized in that: the cover plate is provided with a limiting groove, the limiting groove is provided with a first limiting part and a second limiting part, the first limiting part is in contact with the second rotating shaft, and the second limiting part is in contact with the third rotating shaft.

7. A panic exit velocity reduction device according to claim 5, characterized in that: the cover plate is also provided with a mounting hole matched with the through hole.

8. A panic exit velocity reduction device according to any one of claims 1 to 7, characterized in that: the body is further provided with a handle, and the handle and the body are of an integrated structure.