CN216235791U

CN216235791U - Pulley structure with anti-falling function

Info

Publication number: CN216235791U
Application number: CN202123027156.3U
Authority: CN
Inventors: 许琦
Original assignee: Hangzhou Siye Intelligent Equipment Co ltd
Current assignee: Hangzhou Siye Intelligent Equipment Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-08
Anticipated expiration: 2031-12-03

Abstract

The utility model belongs to the technical field of pulleys, and particularly relates to a pulley structure with an anti-falling function. This pulley structure with anticreep function through set up the cable anticreep region between connecting piece and loose pulley assembly, further highly inject through connecting piece and loose pulley assembly, realizes the connecting piece spacing of cable on to loose pulley assembly for when the connecting piece carries out fixed connection to flexible subassembly, can avoid the cable slippage on the loose pulley assembly, influence the holistic operation of pulley structure.

Description

Pulley structure with anti-falling function

Technical Field

The utility model relates to the technical field of pulleys, in particular to a pulley structure with an anti-falling function.

Background

In mechanics, a typical pulley is a round wheel that can rotate around a central shaft, the circumference of the round wheel is provided with a groove, a rope is wound in the groove, either end of the two ends of the rope is pulled by force, friction between the rope and the round wheel can cause the round wheel to rotate around the central shaft, the pulley is a deformed lever capable of rotating, the main functions of the pulley are to pull load, change force application direction, transmit power and the like, a machine formed by a plurality of pulleys is called a 'pulley block' or a 'compound pulley', the mechanical advantage of the pulley block is large, heavy load can be pulled, and the pulley can also be a chain transmission or belt transmission component, and power is transmitted from one rotating shaft to another rotating shaft.

In the ultraviolet curing construction process, materials and equipment lamp chains need to be dragged into the pipe, the pipe is generally buried deeply, a constructor and equipment generate position staggering on the road surface, the direction needs to be changed through the pulley block to be dragged, the pulley block needs to use an auxiliary instrument to limit the wires in the dragging process, the wires are prevented from vibrating and falling off in the guiding process through the pulley block, the normal operation of the pulley block is influenced, the installation process of the pulley assembly is increased through the arrangement of the auxiliary instrument, and the operation efficiency is influenced.

In view of the above problems, there is a high necessity for a pulley structure capable of providing stable support and preventing the wire from slipping.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pulley structure which can provide stable support and prevent a wire from slipping.

In order to achieve the purpose, the utility model provides the following technical scheme: a pulley structure with a drop-off prevention function includes:

the cable anti-falling device comprises at least two telescopic assemblies, connecting pieces and pulley assemblies, wherein the number of the telescopic assemblies is at least two, the pulley assemblies are rotatably connected between the at least two telescopic assemblies, the connecting pieces are fixedly connected between the at least two telescopic assemblies, a cable anti-falling area is defined between the connecting pieces and the pulley assemblies, and the connecting pieces are higher than the center height of the pulley assemblies.

Preferably, the connecting piece is a C-shaped connecting piece.

Preferably, the connector "C" shaped opening faces the sheave assembly.

Preferably, the connecting piece includes from last to arranging first connecting portion, second connecting portion and the third connecting portion that are "C" type in proper order down, first connecting portion and third connecting portion parallel, and the second connecting portion is perpendicular to first connecting portion and third connecting portion respectively.

Preferably, the first connecting portion has a height greater than a height of a center of the sheave assembly.

Preferably, the lower end face of the third connecting part is flush with the lower end face of the telescopic assembly.

Preferably, the telescopic assembly comprises a fixed part and a movable part nested in the fixed part, wherein the fixed part and the movable part have the same length direction.

Preferably, the number of the connecting pieces is two, wherein one connecting piece is fixed on the fixed piece, and the other connecting piece is fixed on the movable piece.

Preferably, the pulley assembly is mounted to a fixed member.

Preferably, the length from the pulley assembly to the end part of the fixed member far away from the movable member is smaller than the length from the pulley assembly to the end part of the movable member far away from the fixed member.

Compared with the prior art, the utility model has the beneficial effects that:

this pulley structure with anticreep function through set up the cable anticreep region between connecting piece and loose pulley assembly, further highly inject through connecting piece and loose pulley assembly, realizes the connecting piece spacing of cable on to loose pulley assembly for when the connecting piece carries out fixed connection to flexible subassembly, can avoid the cable slippage on the loose pulley assembly, influence the holistic operation of pulley structure.

Drawings

Fig. 1 is an overall schematic view of a pulley structure with an anti-dropping function according to the present invention.

Fig. 2 is a schematic bottom view of the pulley structure with anti-slip function according to the present invention.

Fig. 3 is a schematic side view of the structure of the pulley with anti-slip function according to the present invention.

Fig. 4 is a schematic structural view of the pulley structure with the anti-dropping function according to the present invention.

In the figure: 100. a telescoping assembly; 101. a fixing member; 102. a movable member; 200. a connecting member; 201. a first connection portion; 202. a second connecting portion; 203. a third connecting portion; 300. a sheave assembly; 301. a pulley body; 302. a pulley shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a pulley structure with a drop-off prevention function includes:

the cable-free telescopic assembly comprises telescopic assemblies 100, connecting pieces 200 and pulley assemblies 300, wherein the number of the telescopic assemblies 100 is at least two, the pulley assemblies 300 are rotatably connected between the at least two telescopic assemblies 100, the connecting pieces 200 are fixedly connected between the at least two telescopic assemblies 100, a cable-free area is defined between the connecting pieces 200 and the pulley assemblies 300, and the connecting pieces 200 are higher than the central height of the pulley assemblies 300.

Through set up the cable anticreep region between connecting piece 200 and loose pulley assembly 300, further highly inject through connecting piece 200 and loose pulley assembly 300, realize connecting piece 200 spacing to the cable on loose pulley assembly 300 for when connecting piece 200 carries out fixed connection to flexible subassembly 100, can avoid the cable slippage on loose pulley assembly 300, influence the holistic operation of pulley structure, the realization is to the reduction of installation procedure.

As shown in fig. 1, the link 200 is a "C" shaped link 200, and the "C" shaped link 200 opens toward the sheave assembly 300. By providing the connecting member 200 as a "C" shape, the "C" shape of the connecting member 200 is further opened to be installed toward the pulley assembly 300, so as to limit the side of the connecting member 200 to the cable outside the pulley assembly 300, and further prevent the cable from slipping off the pulley assembly 300.

As shown in fig. 1, the connection member 200 includes a first connection portion 201, a second connection portion 202, and a third connection portion 203, which are arranged in a "C" shape from top to bottom.

Specifically, the first connecting portion 201 and the third connecting portion 203 are parallel, and the second connecting portion 202 is perpendicular to the first connecting portion 201 and the third connecting portion 203, respectively. Through with first connecting portion 201 and third connecting portion 203 parallel arrangement, avoid first connecting portion 201 and loose pulley assembly 300 to go up the cable contact in-process and produce great resistance, prevent first connecting portion 201 avris fish tail cable simultaneously, wherein the terminal surface can stably contact with device outside mounting end face under the third connecting portion 203, further realize the holistic stable installation of device, through set up second connecting piece 200 perpendicularly in first connecting piece 200 and third connecting piece 200, make first connecting piece 200 and third connecting piece 200 can the stable connection, further realize first connecting piece 200, the connection stability between second connecting piece 200 and the third connecting piece 200, realize the fixed to the position between a plurality of flexible subassemblies 100.

Specifically, the height of the first connecting portion 201 is higher than the height of the center of the pulley assembly 300. Through highly being higher than the pulley assembly 300 center height setting with first connecting portion 201, guarantee that first connecting portion 201 can be at pulley assembly 300 to outside cable guide in-process, effectively carry on spacingly to the outside cable of pulley assembly 300, avoid the cable pine to take off and drop.

More specifically, the lower end surface of the third connecting portion 203 is flush with the lower end surface of the telescopic assembly 100. Through setting up telescopic component 100 and third connecting portion 203 lower terminal surface to the parallel and level for the device is in the arrangement process, and telescopic component 100's lower terminal surface and third connecting portion 203's lower terminal surface can contact with the installation face simultaneously, in order to realize the holistic stable support of device.

As shown in fig. 1-3, the telescopic assembly 100 includes a fixed member 101 and a movable member 102 nested in the fixed member 101, wherein the fixed member 101 and the movable member 102 have the same length direction.

Through moving on with moving part 102 on the flexible subassembly 100 inside mounting 101, realize the extension to flexible subassembly 100, when the device set up in the construction well head, the device of being convenient for is installed to different size well heads.

As one embodiment of the present invention, the pulley assembly 300 is mounted on the fixing member 101.

By installing the pulley assembly 300 on the fixing member 101, the pulley assembly 300 can rotate stably, and the pulley assembly 300 can further roll an external cable stably.

As shown in fig. 1-3, the length from the pulley assembly 300 to the end of the fixed member 101 away from the movable member 102 is smaller than the length from the pulley assembly 300 to the end of the movable member 102 away from the fixed member 101. Through installing loose pulley assembly 300 on mounting 101, further keep away from the length of moving part 102 tip to loose pulley assembly 300 to mounting 101 and loose pulley assembly 300 to moving part 102 keep away from the length of fixing 101 tip and restrict to realize the better fixed part 101 of support stability, can effectively support loose pulley assembly 300, further guarantee loose pulley assembly 300 to the stability of outside cable rolling in-process.

As shown in fig. 1 to 3, the number of the connecting members 200 is two, wherein one connecting member 200 is fixed to the fixed member 101, and the other connecting member 200 is fixed to the movable member 102.

As shown in fig. 1 to 4, the pulley assembly 300 includes a pulley body 301 and a pulley shaft 302 coaxially disposed with the pulley body 301, and the pulley body 301 is mounted on the two telescopic assemblies 100 through the pulley shaft 302.

Specifically, the pulley shaft 302 is mounted on the upper end of the fixed member 101 of the telescopic assembly 100. Install in the upper end of mounting 101 through with pulley shaft 302 to realize that mounting 101 passes through pulley shaft 302 and to the steady support of flexible subassembly 100, avoid pulley assembly 300 to lead the in-process to the cable, pulley assembly 300 supports the unstability and leads to the cable to rock the slippage, influences the whole result of use of device.

When the cable at the wellhead position needs to be guided by the device, the lower end face of the telescopic assembly 100 on the device is arranged at the wellhead position, and when the wellhead is too large or too small in size, the length of the telescopic assembly 100 is adjusted by pulling the fixed part and the movable part on the telescopic assembly 100, so that the adjusted telescopic assembly 100 is arranged at the wellhead;

as shown in fig. 1, a cable to be guided penetrates through a gap between a connecting piece 200 mounted on a fixing part and a pulley assembly 300, and the penetrating end of the cable is further pulled, wherein the cable falls into a groove formed in the periphery of a pulley body 301 on the pulley assembly 300, the cable drives the pulley body 301 to rotate through a pulley shaft 302, so as to guide the cable, when the cable needs to be steered by 90 degrees, the cable is transversely pulled to be located above the pulley assembly 300, the end face of the cable is further guided through a first connecting part 201 mounted on the connecting piece 200 at the upper end of a movable piece 102, and stable movement of the cable is ensured.

In conclusion, through set up the cable anticreep region between connecting piece 200 and loose pulley assembly 300, further highly inject through connecting piece 200 and loose pulley assembly 300, realize that connecting piece 200 is spacing to the cable on loose pulley assembly 300 for when connecting piece 200 carries out fixed connection to flexible subassembly 100, can avoid the cable slippage on loose pulley assembly 300, influence the holistic operation of pulley structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pulley structure with an anti-drop function is characterized by comprising:

2. The pulley structure with the anti-drop function according to claim 1, wherein: the connecting piece is a C-shaped connecting piece.

3. The pulley structure with the anti-drop function according to claim 2, wherein: the connecting piece C-shaped opening faces the pulley assembly.

4. The pulley structure with the anti-drop function according to claim 2, wherein: the connecting piece includes from last to arranging first connecting portion, second connecting portion and the third connecting portion that are "C" type in proper order down, first connecting portion and third connecting portion parallel, and the second connecting portion is perpendicular to first connecting portion and third connecting portion respectively.

5. The pulley structure with the anti-drop function according to claim 4, wherein: the first connecting portion has a height greater than a height of a center of the sheave assembly.

6. The pulley structure with the anti-drop function according to claim 4, wherein: the lower end face of the third connecting part is flush with the lower end face of the telescopic assembly.

7. The pulley structure with the anti-drop function according to claim 1, wherein: the telescopic assembly comprises a fixed piece and a movable piece nested in the fixed piece, wherein the fixed piece and the movable piece are identical in length direction.

8. The pulley structure with the anti-drop function according to claim 7, wherein: the quantity of connecting piece is two, and one of them connecting piece is fixed in on the mounting, and another connecting piece is fixed in on the moving part.

9. The pulley structure with the anti-drop function according to claim 7, wherein: the pulley assembly is mounted on the fixed member.

10. The pulley structure with the anti-drop function according to claim 7, wherein: the length from the pulley assembly to the end part of the fixed part far away from the movable part is less than the length from the pulley assembly to the end part of the movable part far away from the fixed part.