CN218976168U - Composite wire interval maintaining device convenient for sliding adjustment - Google Patents

Abstract

The utility model discloses a composite wire space keeping device convenient for sliding adjustment, which comprises a fixed plate, an upper movable pulley for clamping an upper sub-wire from the upper part, a lower fixed pulley for clamping a lower sub-wire from the lower part, an upper movable pulley frame and a space adjusting mechanism for longitudinally adjusting the space between the upper movable pulley and the lower fixed pulley, wherein the fixed plate is connected with the space adjusting mechanism; the holding device respectively traction, guiding and controlling the distance to the upper sub-conductor and the lower sub-conductor through the upper movable pulley and the lower fixed pulley, can always maintain the distance between the complex conductors in the complex conductor repairing process, can conveniently move the holding device, lightens the working strength of operators, and can avoid damaging insulators on the surfaces of the conductors.

Description

Composite wire interval maintaining device convenient for sliding adjustment

Technical Field

The utility model relates to the technical field of working tools for electric power transmission lines, in particular to a complex wire spacing maintaining device convenient for sliding adjustment.

Background

At present, a 66kV-220kV two-split conductor transmission line adopts a vertical arrangement structure in most northeast areas, and no spacer is arranged in the middle. The wire is broken often due to lightning stroke and external damage, an maintainer is required to take the wire-walking flyer to reach the operation position for carrying out defect eliminating operation, the wire-walking flyer needs to be hung on a nondestructive wire in order to ensure safety, if the defect position is in the middle of a gear, the wire sag of the maintainer reaching the defect position can be reduced by 1-4 meters due to self weight, a counter pulley is hung on the defective sub-wire in the past, and ground personnel pull down method is adopted, so that the personnel and difficulty are increased in the operation process, and secondary damage can be caused to the defective wire. In addition, the traditional middle double-wire defect eliminating operation often uses a rope binding method or a ground personnel rope traction method, and the main purpose is to keep the operation position, and the distance between the double wires meets the operation requirement, for example, when one wire is damaged at a plurality of positions, the operation needs to be moved, so that the distance between the double wires is kept by the operators, the physical consumption is high, and the risk factors are many.

Disclosure of Invention

The present utility model is directed to a device for maintaining a distance between multiple wires for easy sliding adjustment, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a complex wire interval keeping device convenient to slip regulation, fixed plate with driving fixed connection, press from both sides the last movable pulley of upper sub-wire by the top, press from both sides the lower fixed pulley of lower sub-wire by the below, go up movable pulley frame and the interval adjustment mechanism of vertical adjustment between upper movable pulley and the lower fixed pulley, fixed plate supports and connects interval adjustment mechanism, go up movable pulley frame and interval adjustment mechanism upper end fixed connection, go up movable pulley and be rotationally fixed on last movable pulley frame through connecting pin, lower fixed pulley and interval adjustment mechanism lower extreme fixed connection, lower fixed pulley is rotationally fixed through the fixed pin, fixed pin both ends are connected with fixed plate and interval adjustment mechanism respectively, go up movable pulley and lower fixed pulley are parallel to each other and set up from top to bottom, and its periphery middle part has round arc wall for guiding and spacing upper sub-wire and lower sub-wire.

Preferably, the interval adjusting mechanism comprises an upper screw and a screw connecting sleeve screwed with the upper screw, the screw connecting sleeve is connected with the fixed plate and can rotate, a connecting bearing is sleeved at the lower end of the screw connecting sleeve, a fixed pin shaft is fixedly connected with the outer circumferential surface of the connecting bearing, the upper movable pulley frame is fixedly arranged at the upper end of the upper screw, and an interval adjusting handle capable of driving the screw connecting sleeve to rotate is arranged on the outer circumferential surface of the screw connecting sleeve.

More preferably, the space adjusting mechanism further comprises a lower movable pulley and a lower movable pulley frame used for rotatably fixing the lower movable pulley, the space adjusting mechanism further comprises a lower screw rod which is in threaded connection with the screw rod connecting sleeve and is positioned at the lower end of the lower screw rod, the lower screw rod is opposite to the upper screw rod in threaded direction, the lower movable pulley and the upper movable pulley are parallel up and down and are symmetrical relative to the central transverse plane of the screw rod connecting sleeve, the lower movable pulley is also provided with a circle of arc-shaped groove, and a lower sub-lead guiding area is enclosed between the lower fixed pulley and the lower movable pulley.

Further preferably, the device also comprises an upper fixed pulley, and the upper fixed pulley is connected with the upper end of the screw rod connecting sleeve through a fixed pin shaft and a connecting bearing, the upper movable pulley is provided with a circle of arc-shaped groove, the upper fixed pulley and the lower fixed pulley are vertically parallel and symmetrical relative to the central transverse plane of the screw rod connecting sleeve, and an upper sub-lead guiding area is enclosed between the upper fixed pulley and the upper movable pulley.

Further preferably, the upper movable pulley frame and the lower movable pulley frame each comprise a U-shaped steel plate, a foot plate on one side of the U-shaped steel plate is connected with the interval adjusting mechanism, a connecting pin is connected in series with foot plates on two sides of the U-shaped steel plate and an upper movable pulley and a lower movable pulley which are positioned between the foot plates on two sides of the U-shaped steel plate, and the upper movable pulley and the lower movable pulley are rotatably fixed on the U-shaped steel plate.

Further preferably, the upper safety lock and the lower safety lock are arranged on the outer side face of the foot plate on the other side of the U-shaped steel plate of the upper movable pulley frame in a sliding manner, the lower safety lock is arranged on the lower portion of the fixed plate in a sliding manner, and the upper safety lock and the lower safety lock cover the upper sub-lead guide area and the lower sub-lead guide area respectively in a sliding manner.

Further preferably, the upper safety lock and the lower safety lock are steel plates with U-shaped connecting grooves, the upper safety lock is inserted on the connecting pin shaft through the connecting grooves and clamped at the end parts of the connecting pin shaft, in the sealing cover state, the lower part of the connecting groove of the upper safety lock is inserted on the fixed pin shaft for fixing the upper fixed pulley, likewise, the lower safety lock is inserted on the fixed pin shaft for fixing the lower fixed pulley through the connecting grooves and clamped at the end parts of the lower safety lock, and in the sealing cover state, the lower part of the connecting groove of the lower safety lock is inserted on the connecting pin shaft for fixing the lower movable pulley.

Further preferably, the anti-slip lock is arranged on the upper movable pulley frame, the anti-slip lock is an anti-slip screw which is in threaded connection with the foot plate at the other side of the U-shaped steel plate and is arranged on the foot plate, and in a locking state, the end part of the anti-slip screw abuts against the end surface of the upper movable pulley to prevent the upper movable pulley from rotating.

Compared with the prior art, the complex wire spacing maintaining device convenient for sliding adjustment has the following beneficial effects:

1. the holding device respectively carries out traction guiding and distance control on the upper sub-lead and the lower sub-lead through the upper movable pulley and the lower fixed pulley, so that the distance between the two sub-leads can be always kept in the repairing process of the two sub-leads, and the working intensity of operators is reduced.

2. After the pulley block is meshed with the composite wire, the movable holding device which can be conveniently pulled reduces the friction force acting on the composite wire, and prevents the insulator on the surface of the wire from being damaged.

3. The distance between the upper movable pulley and the lower movable pulley can be adjusted simultaneously through the forward rotation or reverse rotation of the distance adjusting handle, so that the upper sub-conductor and the lower sub-conductor can be conveniently placed in the upper sub-conductor guide area and the lower sub-conductor guide area respectively, the distance between the upper sub-conductor and the lower sub-conductor in a normal state or a tension relaxation state can be conveniently adjusted, and the air operation difficulty of operators is reduced.

Drawings

FIG. 1 is a front view of the present utility model;

fig. 2 is a side view of the present utility model.

In the figure: 1. a safety lock is arranged; 1a, a connecting groove; 2. an upper movable pulley frame; 3. an upper movable pulley; 4. a connecting pin shaft; 5. a lead screw is arranged; 6. connecting a bearing; 7. a non-slip lock; 8. an upper fixed pulley; 9. a screw connecting sleeve; 10. a fixing plate; 11. a lower safety lock; 12. a fixed pin shaft; 13. a lower fixed pulley; 14. a spacing adjustment handle; 15. a lower lead screw; 16. a positioning block; 17. a lower pulley frame; 18. a lower movable pulley; a. an upper subconductor guide section; b. and a lower sub-wire guide area.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only preferred embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The device for keeping the space between the compound wires is fixedly arranged on a flying car and is used for assisting an operator in maintaining the space between the compound wires in the defect eliminating operation, and comprises a fixed plate 10 fixedly connected with the flying car, an upper movable pulley 3 for clamping the upper sub-wires from the upper part, a lower fixed pulley 13 for clamping the lower sub-wires from the lower part, an upper movable pulley frame 2 and a space adjusting mechanism for longitudinally adjusting the space between the upper movable pulley 3 and the lower fixed pulley 13, wherein the fixed plate 10 supports and is connected with the space adjusting mechanism, the upper movable pulley frame 2 is fixedly connected with the upper end of the space adjusting mechanism, the upper movable pulley 3 is rotatably fixed on the upper movable pulley frame 2 through a connecting pin shaft 4, the lower fixed pulley 13 is fixedly connected with the lower end of the space adjusting mechanism, the lower fixed pulley 13 is rotatably fixed through a fixed pin shaft 12, and two ends of the fixed pin shaft 12 are respectively connected with the fixed plate 10 and the space adjusting mechanism, the upper movable pulley 3 and the lower fixed pulley 13 are arranged in parallel up and down and are perpendicular to the adjusting direction of the spacing adjusting mechanism, a circle of arc-shaped grooves are formed in the middle of the outer circumferential surfaces of the upper movable pulley 3 and the lower fixed pulley 13, the diameter of each arc-shaped groove is larger than the outer diameter of a complex wire, the arc-shaped angle of each arc-shaped groove is smaller than 180 degrees, the arc-shaped grooves are used for guiding and limiting the upper sub-wire and the lower sub-wire, when the device is installed, the arc-shaped grooves of the upper movable pulley 3 are hooked with the upper sub-wire downwards under the action of gravity and meshed with the upper sub-wire, the arc-shaped grooves of the lower fixed pulley 13 are hooked with the lower sub-wire downwards under the action of gravity and meshed with the lower sub-wire, a certain distance is kept under the limiting action of the upper movable pulley 3 and the lower fixed pulley 13, meanwhile, the upper movable pulley 3 and the lower fixed pulley 13 can roll along with the movement of operators, and the position of a holding device can be moved and adjusted conveniently, simultaneously, the friction force acting on the compound lead is reduced, the insulator on the surface of the lead is prevented from being damaged, in addition, the upper movable pulley 3 and the lower fixed pulley 13 can relatively move or reversely move through the interval adjusting mechanism, and the distance between the upper movable pulley 3 and the lower fixed pulley 13 is adjusted according to the field condition, so that the aim of controlling the interval between the upper sub-lead and the lower sub-lead is fulfilled.

As a further technical scheme of the spacing adjusting mechanism, the spacing adjusting mechanism comprises an upper screw 5 on the upper side and a screw connecting sleeve 9 which is positioned on the lower side and is screwed with the upper screw 5, the upper screw 5 adopts a ball screw or a ball-free linear screw, the screw connecting sleeve 9 is connected with a fixed plate 10 and can rotate, the connecting mode can be realized through a connecting bearing 6 which is about to be unfolded below, the connecting mode can also be realized through a sleeving mode or a hinge connection mode, the lower end of the screw connecting sleeve 9 is sleeved with the connecting bearing 6, the connecting mode is shown in fig. 2, a boss is arranged at the lower end of the screw connecting sleeve 9, the connecting bearing 6 is clamped between the boss and a bearing cover, the bearing cover is screwed with the lower end of the screw connecting sleeve 9, one end of a fixed pin shaft 12 is fixed on the outer circumferential surface of the bearing, the upper movable pulley frame 2 is fixedly arranged at the upper end of the upper screw 5 through welding or a clamp ring, the outer circumferential surface in the middle of the screw connecting sleeve 9 is provided with a spacing adjusting handle 14 which can drive the screw connecting sleeve 9 to rotate, the screw connecting sleeve 9 is driven to rotate by the connecting sleeve 10, the connecting handle 14 is driven by the connecting the screw connecting sleeve 9 to rotate, the lower end of the screw connecting sleeve 5 is easy to move up and down to realize the lifting of the upper pulley 3, the spacing adjusting mechanism is simple in operation, and convenient for workers to hang the operation.

For the problem of insufficient tension of the lower sub-wire existing on site, after the holding device is installed, the distance between the lower sub-wire and the upper sub-wire is still larger, and the lower fixed pulley 13 cannot be meshed with the lower sub-wire to control the distance, so that in order to facilitate the adjustment when the distance between the lower sub-wire and the upper sub-wire is too large or due to looseness, the holding device further comprises a lower movable pulley 18 and a lower movable pulley frame 17 for rotatably fixing the lower pulley, the distance adjusting mechanism further comprises a lower lead screw 15 which is in threaded connection with the lead screw connecting sleeve 9 and is positioned at the lower end of the lower movable pulley, the lower lead screw 15 is opposite to the thread direction of the upper lead screw 5, the lower movable pulley 18 is parallel to the upper movable pulley 3 up and down and is symmetrical to the central transverse plane of the lead screw connecting sleeve 9, the central transverse plane is a horizontal plane passing through the middle part of the lead screw connecting sleeve 9, or can be described as the symmetrical central plane of the two end faces of the lead screw connecting sleeve 9, and therefore, when the lead screw 9 is rotated, the upper movable pulley 3 and the lower movable pulley 18 move relatively or reversely, the distance between the upper movable pulley 18 and the lower movable pulley 18 is controlled by the distance between the upper movable pulley 3 and the lower movable pulley 18, the lower movable pulley 18 is also provided with a circle of grooves, the lower movable pulley 18 and the lower movable pulley 18 is correspondingly placed between the lower movable sub-wire and the lower sub-guide area 18 and the lower sub-wire, and the lower sub-guide area is placed in the corresponding area.

In order to solve the problem of insufficient tension of the upper sub-wire existing on the spot, after the holding device is installed, the holding device is supported by the lower sub-wire, the distance between the upper sub-wire and the lower sub-wire is smaller, and the upper movable pulley 3 cannot bite the upper sub-wire to control the distance, therefore, in order to facilitate the adjustment of the lower upper sub-wire due to the looseness or the too small distance between the upper sub-wire and the lower sub-wire, the upper fixed pulley 8 is installed in the same way as the lower fixed pulley 13, and is connected with the upper end of the screw connecting sleeve 9 through the fixed pin shaft 12 and the connecting bearing 6, the upper fixed pulley 8 is not expanded any more, the upper fixed pulley 8 is provided with the same circle of arc-shaped grooves, the upper fixed pulley 8 and the lower fixed pulley 13 are parallel up and down and symmetrical relative to the central transverse plane of the screw connecting sleeve 9, an upper sub-wire guiding area a is enclosed between the upper fixed pulley 8 and the upper movable pulley 3, the upper sub-wire is placed in the upper sub-wire guiding area a from the open side of the upper sub-wire guiding area a, and the distance between the lower sub-wire and the upper sub-wire is kept in the same as the preset initial distance between the upper fixed pulley 8 and the lower fixed pulley 13.

As a further technical scheme, the upper movable pulley frame 2 and the lower movable pulley frame 17 are both U-shaped steel plates or channel steel, one side foot plate of the U-shaped steel plates is fixed on the upper screw rod 5 or the lower screw rod 15, two ends of the connecting pin shaft 4 are limited by connecting nuts, the connecting pin shaft 4 is connected with the two side foot plates of the U-shaped steel plates in series and the upper movable pulley 3 and the lower movable pulley 18 positioned between the two side foot plates respectively, the upper movable pulley 3 and the lower movable pulley 18 are rotatably fixed on the respective U-shaped steel plates, and in addition, in order to ensure that the arrays of the upper movable pulley 3, the upper fixed pulley 8, the lower fixed pulley 13 and the lower movable pulley 18 are vertically aligned, positioning blocks 16 positioned between the upper movable pulley 3 and the lower movable pulley 18 and one side foot plate respectively are arranged at the end parts of the upper movable pulley 3 and the lower movable pulley 18, so as to prevent the upper movable pulley 3 and the lower movable pulley 18 from being in series when rolling.

As a further technical solution, in order to prevent the complex conductor from escaping from the upper sub-conductor guiding area a and the lower sub-conductor guiding area b by external force during operation, the holding device further comprises an upper safety lock 1 and a lower safety lock 11, the upper safety lock 1 is slidably arranged on the outer side surface of the foot plate on the other side of the U-shaped steel plate of the upper movable pulley frame 2, the lower safety lock 11 is slidably arranged on the outer side surface of the lower part of the fixed plate 10, the upper safety lock 1 and the lower safety lock 11 are slidably sealed on the upper sub-conductor guiding area a and the lower sub-conductor guiding area b respectively, the upper sub-conductor and the lower sub-conductor are prevented from escaping from the holding device, the upper safety lock 1 and the lower safety lock 11 can be steel plates with a U-shaped connecting groove 1a, lock type structures such as a bolt structure in the prior art can also be used, the steel plates with simple structure and high cost performance are preferred as the safety locks, the two connecting pins 4 are arranged at one end of the other side foot plate, a mortise lock gap between the nut and the other side foot plate is reserved at one end of the other side foot plate, the other end of the two fixed pins 12 is also provided with a nut limit, the mortise lock gap between the fixed plate 10 and the nut is reserved at the other end of the other side foot plate, the upper safety lock 1 is inserted on the connecting pins 4 through the connecting grooves 1a and limited in the mortise lock gap at the end of the connecting pins, in a sealing state, the lower part of the connecting grooves 1a of the upper safety lock 1 is inserted in the mortise lock gap of the fixed pin 12 for fixing the upper fixed pulley 8, likewise, the lower safety lock 11 is inserted on the fixed pin 12 for fixing the lower fixed pulley 13 through the connecting grooves 1a and is blocked and limited in the mortise lock gap at the end of the fixed pulley 13, and in a sealing state, the lower part of the connecting grooves 1a of the lower safety lock 11 is inserted in the mortise lock gap of the connecting pins 4 for fixing the lower movable pulley 18.

As a further technical scheme, the retaining device further comprises a non-slip lock 7 arranged on the upper movable pulley frame 2, the non-operation movement phenomenon of the retaining device can be prevented, the non-slip lock 7 is a non-slip screw which is in threaded connection with a foot plate on the other side of the U-shaped steel plate and is arranged on the foot plate, the non-slip screw is positioned right below the connecting pin shaft 4 for fixing the upper movable pulley 3 and in a sliding area of the U-shaped connecting groove 1a for preventing interference, and when the retaining device is locked, the end part of the non-slip screw is abutted against the end face of the upper movable pulley 3 through screwing and tightening, so that the upper movable pulley 3 is prevented from rotating.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (8)

1. A complex wire pitch retention device for facilitating sliding adjustment, comprising: the device comprises a fixed plate fixedly connected with a gallows, an upper movable pulley which clamps an upper sub-conductor from above, a lower fixed pulley which clamps a lower sub-conductor from below, an upper movable pulley frame and a spacing adjusting mechanism which longitudinally adjusts the spacing between the upper movable pulley and the lower fixed pulley, wherein the fixed plate is in supporting connection with the spacing adjusting mechanism, the upper movable pulley frame is fixedly connected with the upper end of the spacing adjusting mechanism, the upper movable pulley is rotatably fixed on the upper movable pulley frame through a connecting pin shaft, the lower fixed pulley is fixedly connected with the lower end of the spacing adjusting mechanism, the lower fixed pulley is rotatably fixed through a fixed pin shaft, two ends of the fixed pin shaft are respectively connected with the fixed plate and the spacing adjusting mechanism, the upper movable pulley and the lower fixed pulley are mutually parallel and are arranged up and down, and the middle part of the outer circumference of the upper movable pulley frame is provided with a circle of arc-shaped groove which is used for guiding and limiting the upper sub-conductor and the lower sub-conductor.

2. The complex wire pitch maintaining apparatus facilitating sliding adjustment according to claim 1, wherein: the interval adjusting mechanism comprises an upper screw and a screw connecting sleeve screwed with the upper screw, the screw connecting sleeve is connected with the fixed plate and can rotate, a connecting bearing is sleeved at the lower end of the screw connecting sleeve, a fixed pin shaft is fixedly connected with the outer circumferential surface of the connecting bearing, the upper moving pulley frame is fixedly arranged at the upper end of the upper screw, and an interval adjusting handle capable of driving the screw connecting sleeve to rotate is arranged on the outer circumferential surface of the screw connecting sleeve.

3. The complex wire pitch maintaining apparatus facilitating sliding adjustment according to claim 2, wherein: the space adjusting mechanism further comprises a lower screw rod which is in threaded connection with the screw rod connecting sleeve and is positioned at the lower end of the lower screw rod, the lower screw rod is opposite to the upper screw rod in threaded direction, the lower movable pulley and the upper movable pulley are vertically parallel and are symmetrical relative to the central transverse plane of the screw rod connecting sleeve, the lower movable pulley is also provided with a circle of arc-shaped groove, and a lower sub-lead guiding area is enclosed between the lower fixed pulley and the lower movable pulley.

4. A complex wire pitch maintaining apparatus facilitating sliding adjustment according to claim 3, wherein: the upper fixed pulley is connected with the upper end of the screw rod connecting sleeve through a fixed pin shaft and a connecting bearing, the upper movable pulley is provided with a circle of arc-shaped groove, the upper fixed pulley and the lower fixed pulley are vertically parallel and symmetrical relative to the central transverse plane of the screw rod connecting sleeve, and an upper sub-lead guiding area is enclosed between the upper fixed pulley and the upper movable pulley.

5. The complex wire pitch maintenance device facilitating sliding adjustment according to claim 4, wherein: the upper movable pulley frame and the lower movable pulley frame respectively comprise a U-shaped steel plate with two side foot plates, one side foot plate of the U-shaped steel plate is connected with the interval adjusting mechanism, and the connecting pin shaft is connected with the two side foot plates of the U-shaped steel plate in series, and the upper movable pulley and the lower movable pulley which are positioned between the two side foot plates respectively, so that the upper movable pulley and the lower movable pulley can be rotationally fixed on the U-shaped steel plate respectively.

6. The complex wire pitch maintaining apparatus facilitating sliding adjustment according to claim 5, wherein: the upper safety lock is slidably arranged on the outer side face of the side foot plate of the U-shaped steel plate of the upper movable pulley frame, the lower safety lock is slidably arranged on the lower portion of the fixed plate, and the upper safety lock and the lower safety lock are respectively and slidably covered on the upper sub-lead guide area and the lower sub-lead guide area.

7. The complex wire pitch maintaining apparatus facilitating sliding adjustment according to claim 6, wherein: the upper safety lock and the lower safety lock are steel plates with U-shaped connecting grooves, the upper safety lock is inserted on the connecting pin shaft through the connecting grooves and clamped at the end parts of the connecting pin shaft, in a sealing cover state, the lower parts of the connecting grooves of the upper safety lock are inserted on the fixed pin shaft for fixing the upper fixed pulley, likewise, the lower safety lock is inserted on the fixed pin shaft for fixing the lower fixed pulley through the connecting grooves and clamped at the end parts of the connecting pin shaft, and in the sealing cover state, the lower parts of the connecting grooves of the lower safety lock are inserted on the connecting pin shaft for fixing the lower movable pulley.

8. The complex wire pitch maintenance device facilitating sliding adjustment according to claim 7, wherein: the anti-slip lock is a non-slip screw which is in threaded connection with the other side foot plate of the U-shaped steel plate and arranged on the side foot plate, and when in a locking state, the end part of the non-slip screw is abutted against the end surface of the upper movable pulley to prevent the upper movable pulley from rotating.

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