CN214359791U

CN214359791U - Lifting type cable pulley

Info

Publication number: CN214359791U
Application number: CN202022267014.3U
Authority: CN
Inventors: 陶智; 万兵; 余裕; 熊李; 杜清波; 代晖; 宋楷; 武天海; 吕攀; 罗志贤; 许静; 罗建文; 曾强
Original assignee: State Grid Sichuan Electric Power Co Ltd
Current assignee: State Grid Sichuan Electric Power Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-10-08
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses an over-and-under type cable pulley has solved the problem that traditional cable pulley altitude mixture control is complicated, control range undersize. The utility model discloses mainly used carries out the cable unwrapping wire in mouth of pipe position, including the cable pulley, still include hoisting accessory, hoisting accessory is including pulling end and free end, the free end is connected with the cable pulley, the pulling end is used for adjusting the height of free end, still including being used for establishhing in the crossbeam of mouth of pipe top, hoisting accessory with the crossbeam cooperation, pulling end and free end are located respectively the both sides of crossbeam. The utility model has the advantages of large height adjusting range, convenient adjustment, simple structure, etc.

Description

Lifting type cable pulley

Technical Field

The utility model relates to a technical field is carried to the cable, concretely relates to over-and-under type cable pulley.

Background

The cable pulley is mainly used for playing a role in protecting when laying cable wires, time and labor are saved, and the cable is protected from friction by changing the extending direction of the cable when in use.

The utility model provides a height-adjustable's cable pulley among the prior art, cable pulley support upper end and lug threaded connection, through making the height that lug and cable pulley support relative rotation finely tuned cable pulley, highly easily adjust, but when some mouth of pipe positions were unwrapped wire to large-scale cable, the height control scope is great, and prior art is no longer suitable for, even increase prior art's control range, carrying out the unwrapping wire, the height control process is more troublesome: need earlier cable pulley and mouth of pipe position calibration, pass the cable pulley with the cable again, just can carry out the cable unwrapping wire, require highly to the size, if the size is not accurate enough, still need take out the readjustment with the cable, the unwrapping wire process is no longer convenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: make cable pulley altitude mixture control simple and convenient, reduce cable pulley altitude mixture control man-hour, the utility model provides a solve the above-mentioned problem's an over-and-under type cable pulley.

The utility model discloses a following technical scheme realizes:

a lifting type cable pulley is used for paying off a cable at a pipe orifice and comprises a cable pulley and a lifting device, wherein the lifting device comprises a pulling end and a free end, the free end is connected with the cable pulley, and the pulling end is used for adjusting the height of the free end; in a working state, firstly, a cross beam is arranged above a pipe orifice needing to be paid off or a position needing to be paid off, the lifting device is connected with the cross beam in a matching mode, the free end is vertical under the action of self weight and the gravity of the cable pulley, the pulling end is pulled, the free end drives the cable pulley to ascend to the position of the pipe orifice, and a cable penetrates through the cable pulley and is inserted into the pipe orifice; the cable can also pass through the cable pulley firstly, and then the height of the cable pulley can be adjusted.

The utility model discloses a cooperation of hoisting accessory and cable pulley makes cable pulley altitude mixture control scope can increase according to hoisting accessory's configuration, and it is very convenient to use in the operating mode of mouth of pipe unwrapping wire, the utility model discloses compare with prior art: the cable pulley does not need to rotate or relatively rotate when the height is adjusted, a cable can pass through the cable pulley in advance when the height is adjusted, the height of the cable pulley is adjusted, and the height of the cable pulley is determined according to the relative position of the cable and the pipe orifice, so that repeated adjustment is avoided; and need change under the operating mode of cable pulley height at some unwrapping wire in-process, be very much to large-scale cable, the utility model discloses need not to take out the cable when carrying out cable pulley altitude mixture control, avoid moving the work of heavy cable, improve the unwrapping wire efficiency of cable.

Preferably, the lifting device comprises a herringbone support, and the lifting device is connected with a cross beam of the herringbone support; the herringbone support reduces the work of temporarily additionally arranging the cross beam on site, the cross beam of the herringbone support is directly used as a supporting beam of the lifting device, the construction workload is reduced, and the cable paying-off efficiency is improved.

Preferably, the hoisting device is a chain block or a chain with a shackle; the chain is used as a lifting device, so that the cost is low and the chain is easy to obtain; when the chain block is used, the relative position of the pulling end is not fixed.

Preferably, the lifting device is a chain with shackles at two ends, the two ends of the chain are respectively used as a free end and a pulling end, and the free end of the chain rotates for a circle around the cross beam of the herringbone support and then is connected with the middle part of the chain through the shackles; the height of the cable pulley is realized by adjusting the connecting position of the pulling end of the chain and the middle part of the chain, and after the adjustment is completed, the pulling end cannot swing, so that the friction between the lifting device and the cable is avoided.

Preferably, the cable pulley bracket is a square bracket, a lifting lug is arranged on the upper end face of the square bracket, and the lifting lug is connected with the free end of the lifting device through a shackle; a notch for cutting off the side wall is formed in the middle section of the side wall of the square support, an adaptive sealing plate is arranged on the notch, one end of the sealing plate is hinged with the lower end of the notch, and the opposite end of the sealing plate is in pin connection with the upper end of the notch; the setting of breach cooperation shrouding is separated cable and cable pulley when making things convenient for the unwrapping wire to accomplish, has avoided numerous and diverse cable pulley dismantlement work, makes cable pulley be applicable to and need carry out the operating mode of unwrapping wire to cable middle section position temporarily.

Preferably, the number of the wire guide wheels of the cable pulley is two, and the notch is positioned between the two guide wheels; after fixing cable pulley lower extreme position, the unwrapping wire angle can two direction squints from top to bottom during the setting of two wire wheels, and at unwrapping wire speed too fast, when the wire wheel of cable and unwrapping wire breaks away from, can temporarily carry out the unwrapping wire by another wire wheel, prevents that cable and cable pulley frame from producing collision or friction.

Preferably, flexible protective cushion blocks are respectively arranged on the side wall of the cable pulley bracket and the sealing plate; the cable is prevented from sliding out of two sides of the guide wheel and then directly contacting the cable pulley bracket to cause abrasion.

The utility model discloses have following advantage and beneficial effect:

1. the utility model discloses altitude mixture control is convenient, promotes the height of cable pulley through setting up hoisting accessory, and accommodation is bigger, can take the cable to adjust, makes things convenient for cable and orificial direct proofreading in some mouth of pipe positions, avoids iterative altitude mixture control, improves unwrapping wire efficiency.

2. The utility model discloses service condition is simple, only needs to erect the crossbeam at the scene and can use as hoisting accessory's bracing piece, has reduced unwrapping wire preparation work, saves man-hour, reduces the cost such as instrument, processing when the construction simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

the method comprises the following steps of 1-hoisting device, 2-herringbone support, 3-beam, 4-cable pulley support, 5-wire guide wheel, 6-sealing plate, 7-protective cushion block, 8-shackle and 9-lifting lug.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

A lifting type cable pulley is mainly used for paying off cables at a pipe orifice position, and comprises a cable pulley and a lifting device 1, wherein the lifting device 1 comprises a pulling end and a free end, the free end is detachably connected with a cable pulley support frame, and the pulling end is used for adjusting the height of the free end; in a working state, firstly, a cross beam 3 is arranged above a pipe orifice needing to be paid off or a position needing to be paid off, the lifting device 1 is connected with the cross beam 3 in a matching mode, the free end is vertical under the action of self weight and the gravity of the cable pulley, the pulling end is pulled, the free end drives the cable pulley to rise to the position of the pipe orifice, and a cable passes through the cable pulley and is inserted into the pipe orifice; the cable can also pass through the cable pulley firstly, and then the height of the cable pulley can be adjusted.

When the utility model works, a beam 3 is needed to be arranged above the position needing paying-off on site, the lifting device 1 is connected with the beam 3, and the beam 3 is used as a support piece of the whole cable pulley; the pulling end of pulling hoisting accessory 1 makes hoisting accessory 1's free end height obtain promoting, when altitude mixture control: the cable pulley and the paying-off position can be calibrated firstly, then the cable is threaded into the cable pulley for fine adjustment and then is paid off, and the height of the cable pulley can be adjusted according to the actual state of the cable after the cable is threaded into the cable pulley, so that repeated height adjustment is avoided.

Example 2

The embodiment is an improvement on the basis of the embodiment 1, and further comprises a herringbone support 2, wherein a cross beam 3 of the herringbone support 2 is connected with the hoisting device 1 to serve as a support of a cable pulley; the lifting device 1 is a chain with shackles 8 at two ends, the two ends of the chain are respectively used as a free end and a pulling end of the lifting device 1, the free end of the chain is detachably connected with the cable pulley through the shackles 8, and the pulling end of the chain is detachably connected with the middle section of the chain through the shackles 8 after rotating around the cross beam 3 of the herringbone support 2 in the circumferential direction for a circle; the number of the wire guide wheels 5 in the cable pulley is two; cable pulley support 4 is square support, and 4 upper ends of cable pulley support are equipped with lug 9, and lug 9 is used for being connected with 1 free end of hoisting accessory, and 4 lateral walls of cable pulley support open there is the breach that cuts this lateral wall, are provided with shrouding 6 in the breach, and shrouding 6 is articulated, pin junction with both ends about the breach respectively, has flexible protection cushion 7 through bolted connection on shrouding 6 and the another lateral wall of support.

In the embodiment, the hoisting device 1 is a chain with shackles 8 at two ends, and when the height of the cable pulley is adjusted, the height can be adjusted simply and conveniently by changing the connecting position of the pulling end of the chain and the middle section of the chain; the arrangement of the number of the wire guide wheels 5 ensures that when the cable paying-off speed is too high to be separated from the wire guide wheels 5, the other wire guide wheel 5 limits the cable and prevents the cable from rubbing with the upper end of the cable pulley bracket 4; the arrangement of the sealing plate 6 facilitates the separation of the cable and the cable pulley; the arrangement of the protective pad 7 prevents the cable from being worn due to direct contact with the side wall of the cable pulley holder 4.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A lifting type cable pulley is used for paying off a cable at a pipe orifice and comprises a cable pulley and is characterized by further comprising a lifting device (1), wherein the lifting device (1) comprises a pulling end and a free end, the free end is connected with the cable pulley, and the pulling end is used for adjusting the height of the free end;

the pipe lifting device is characterized by further comprising a cross beam (3) arranged above the pipe orifice, the lifting device (1) is matched with the cross beam (3), and the pulling end and the free end are respectively located on two sides of the cross beam (3).

2. The lifting cable trolley as claimed in claim 1, comprising a trestle (2), wherein the lifting device (1) is connected to the cross beam (3) of the trestle (2).

3. An elevating cable trolley as claimed in claim 2, characterised in that the hoisting means (1) is a chain block or a chain with shackles (8).

4. The lifting cable pulley as claimed in claim 3, wherein the hoisting device (1) is a chain with shackles (8) at both ends, the two ends of the chain are respectively used as a free end and a pulling end, and the free end of the chain is connected with the middle part of the chain through the shackles (8) after rotating around the cross beam (3) of the herringbone bracket (2) in a circumferential direction for one circle.

5. The lifting cable pulley as claimed in claim 1, wherein the cable pulley support (4) of the cable pulley is a square support, a lifting lug (9) is arranged on the upper end surface of the square support, and the lifting lug (9) is connected with the free end of the lifting device (1) through a shackle (8);

the middle section department opens the breach that has the truncation lateral wall on cable pulley support (4) lateral wall, be provided with in the breach with shrouding (6) of breach adaptation, shrouding (6) one end is articulated with the breach lower extreme, shrouding (6) relative one end and breach upper end pin joint.

6. The elevating cable pulley as claimed in claim 5, wherein the number of the cable pulley guide rollers (5) is two, and the gap is located between the two cable pulley guide rollers (5).

7. The lifting cable pulley as claimed in claim 5, wherein flexible protective spacers (7) are mounted on the side walls of the cable pulley support (4) and on the sealing plate (6), respectively.