Wire tightening device for high-voltage power transmission and transformation circuit

Abstract

The utility model discloses a stringing device for a high voltage power transmission and transformation line, which comprises a base, positioning pulleys, a support plate, tightening pulleys and a cable body, the support plate is fixedly connected to the upper end of the base, the positioning pulleys are rotatably connected to the two ends of the base, the tightening pulleys are arranged in the support plate, and the cable body is arranged in the base. The front end and the rear end of the tightening pulley are movably connected with movable blocks through bearings, the movable blocks are slidably connected to the interior of the supporting plate, the upper ends of the movable blocks are fixedly connected with sliding rods, a movable groove is formed in the supporting plate, and plastic buckles are fixedly connected to the interior of the movable groove in a circumferential array mode. According to the utility model, the sliding rod is pulled to drive the movable block to drive the tightening pulley to slide, so that the cable body is tensioned, and the sliding rod can be fixed through the mutual cooperation between the fastening bolt and the plastic buckle, so that the tightening pulley is fixed, and the cable body is kept in a tightened state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wire tightening, in particular to a wire tightening device for high-voltage transmission and distribution line. BACKGROUND

[0002] With the progress of society and the acceleration of economic construction, power customers have increasingly high requirements for the power department to provide high-quality and reliable power supply. Live working maintenance not only provides continuous and uninterrupted power supply for users, but also improves the power supply reliability of the power grid. During work, the staff need to tighten the wire, so the wire tightening device is used.

[0003] For the problems in the related art, no effective solution has been proposed so far.

[0004] 1. The existing wire tightening device for high-voltage transmission and distribution line needs to be manually tightened by the staff during use, and cannot be released. If it is released, it will be loose, causing the wire to be loose and affecting normal work, which is not convenient for the staff to use during work. UTILITY MODEL CONTENTS

[0005] For the problems in the related art, the utility model provides a wire tightening device for high-voltage transmission and distribution line to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] A wire tightening device for high-voltage transmission and distribution line, comprising a base, a positioning pulley, a support plate, a tightening pulley and a cable body, the support plate is fixedly connected to the upper end of the base, the positioning pulley is rotatably connected to both ends of the base, the tightening pulley is arranged inside the support plate, the front and rear ends of the tightening pulley are movably connected with a movable block through bearings, the movable block is slidably connected to the inside of the support plate, the upper end of the movable block is fixedly connected with a sliding rod, the inside of the support plate is provided with an active slot, a plurality of plastic buckles are fixedly connected in the inside circumference of the active slot, a fastening bolt is threadedly engaged in the inside of the active slot, the upper end of the plastic buckle is provided with a first inclined surface, the inner side of the bottom of the fastening bolt is provided with a second inclined surface, and the cable body is arranged between the positioning pulley and the tightening pulley.

[0008] The further improvement of the utility model technical scheme is that the inside of the support plate is provided with a slot, the movable block is slidably connected to the inside of the slot, the inner upper wall of the slot is provided with a first through slot communicating with the active slot, and the sliding rod is slidably connected to the inside of the first through slot.

[0009] A further improvement of this utility model is that: the first through groove is opened at the center of the plastic buckle arranged in a circumferential array; the fastening bolt has a second through groove inside, the second through groove and the first through groove are adapted to each other; the inner wall of the movable groove is provided with threaded texture; and the fastening bolt is threaded into the interior of the movable groove through the threaded texture.

[0010] Using the above technical solution, the second through groove allows the slide rod to slide. Rotating the fastening bolt allows it to slide inside the movable groove under the action of the thread, thereby causing the first inclined surface and the second inclined surface to rub against each other. Under the action of the friction and squeezing force of the first inclined surface and the second inclined surface, the plastic buckle moves closer to each other, thereby clamping and fixing the slide rod, and then fixing the tightening pulley, so that the cable body remains in a tightened state.

[0011] A further improvement of this utility model is that: limiting grooves are provided on the inner walls of both sides of the slot, and limiting blocks are fixedly connected to both ends of the movable block. The movable block is slidably connected to the inside of the slot through the limiting blocks and the limiting grooves.

[0012] Using the above technical solution, the limiting block and limiting groove in the solution can limit the movement of the moving block, so that the moving block will not fall out of the groove.

[0013] A further improvement of this utility model is that: a hook is fixedly connected to the outer wall of the tightening pulley, a turntable is fixedly connected to one end of the tightening pulley, and a ratchet is fixedly connected to the end of the tightening pulley away from the turntable.

[0014] In the above technical solution, the hook is used to hook the cable body.

[0015] A further improvement of the present invention is that: a connecting block is fixedly connected to one side of the movable block at one end of the tightening pulley, a wedge-shaped stop is provided on the inner side of the connecting block, a return spring is fixedly connected to one end of the wedge-shaped stop, and the wedge-shaped stop is located on one side of the ratchet.

[0016] Using the above technical solution, the reset spring in the solution can drive the wedge-shaped stop to perform a reset movement, thereby blocking the ratchet and preventing the ratchet from rotating in the opposite direction after it rotates, thus providing a certain degree of stability for tightening the pulley.

[0017] A further improvement of this utility model is that: the inner side of the connecting block is provided with a movable cavity, the wedge-shaped stop is slidably connected to the inside of the movable cavity, and the end of the reset spring away from the wedge-shaped stop is fixedly connected to the inner wall of the movable cavity.

[0018] The further improvement in the technical scheme of the utility model lies in that: the upper and lower inner walls of the movable cavity are provided with sliding grooves, the upper and lower ends of the wedge-shaped blocking block are fixedly connected with sliding blocks, the wedge-shaped blocking block is slidably connected to the inside of the movable cavity through the sliding blocks and the sliding grooves, and one side of the wedge-shaped blocking block is fixedly connected with a push block.

[0019] By adopting the above technical scheme, the sliding block and the sliding groove in the scheme can limit the wedge-shaped blocking block, so that the wedge-shaped blocking block cannot be separated from the movable cavity, and the push block can drive the wedge-shaped blocking block to move, so that the wedge-shaped blocking block is disengaged from the blocking of the ratchet wheel, and the ratchet wheel can rotate in the reverse direction.

[0020] The utility model has the advantages of:

[0021] 1. The sliding rod is fixed by the cooperation between the fastening bolt and the plastic buckle, and the tightening pulley is fixed, so that the cable body remains in the tightened state.

[0022] 2. The hook hooks the cable body, and then the tightening pulley is driven by rotating the rotating disc to further tighten the cable body, so that the cable body can be tightened for a longer length. When rotating, the ratchet wheel is driven to rotate, and the wedge-shaped blocking block is driven by the return spring to block the ratchet wheel, so that the ratchet wheel cannot rotate in the reverse direction after rotating. The tightening pulley provides certain stability, so that the cable body does not loosen. DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 It is the front view according to the embodiment of the utility model

[0025] Figure 2 It is the internal structure diagram of the supporting plate according to the embodiment of the utility model

[0026] Figure 3 It is the fastening bolt structure diagram according to the embodiment of the utility model

[0027] Figure 4 It is the tightening assembly structure diagram according to the embodiment of the utility model

[0028] In the drawings:

[0029] 1, base; 2, positioning pulley; 3, support plate; 301, slot; 302, limiting groove; 303, first through slot; 304, movable slot; 305, thread; 306, plastic buckle; 307, first inclined surface; 4, tightening pulley; 401, hook; 402, turntable; 403, ratchet; 404, movable block; 4041, limiting block; 4042, sliding rod; 4043, connecting block; 4044, movable cavity; 4045, sliding groove; 4046, wedge-shaped block; 4047, sliding block; 4048, return spring; 4049, push block; 5, fastening bolt; 501, second inclined surface; 502, second through slot; 6, cable body. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] According to the embodiments of the utility model, a line tightening device for high-voltage transmission and distribution line is provided.

[0032] Embodiment one;

[0033] As Figures 1-4 shown, the line tightening device for high-voltage transmission and distribution line according to the embodiments of the utility model comprises a base 1, a positioning pulley 2, a support plate 3, a tightening pulley 4 and a cable body 6. The support plate 3 is fixedly connected to the upper end of the base 1. The positioning pulley 2 is rotatably connected to the two ends of the base 1. The tightening pulley 4 is arranged inside the support plate 3. The front and rear ends of the tightening pulley 4 are movably connected with a movable block 404 through bearings. The movable block 404 is slidably connected to the inside of the support plate 3. The upper end of the movable block 404 is fixedly connected with a sliding rod 4042. The inside of the support plate 3 is provided with a movable slot 304. The inside of the movable slot 304 is fixedly connected with a plastic buckle 306 in a circumferential array. The inside of the movable slot 304 is threadedly engaged with a fastening bolt 5. The upper end of the plastic buckle 306 is provided with a first inclined surface 307. The inside of the bottom of the fastening bolt 5 is provided with a second inclined surface 501. The cable body 6 is arranged between the positioning pulley 2 and the tightening pulley 4.

[0034] In this embodiment, the sliding rod 4042 is pulled to drive the movable block 404 to drive the tightening pulley 4 to slide, so as to tighten the cable body 6. The sliding rod 4042 can be fixed through the cooperation between the fastening bolt 5 and the plastic buckle 306, and the tightening pulley 4 is fixed, so that the cable body 6 remains in the tightened state.

[0035] Example two;

[0036] As Figures 1-4 shown, according to the high-voltage transmission line device of the utility model embodiment, the support plate 3 is internally provided with a slot 301, the movable block 404 is slidingly connected to the inside of the slot 301, the inner upper wall of the slot 301 is provided with a first through slot 303 communicated with the movable slot 304, the slide rod 4042 is slidingly connected to the inside of the first through slot 303, the first through slot 303 is provided at the center position of the circumferentially arranged plastic buckle 306, the inside of the fastening bolt 5 is provided with a second through slot 502, the second through slot 502 is matched with the first through slot 303, the inner wall of the movable slot 304 is provided with a thread 305, the fastening bolt 5 is threadedly engaged with the inside of the movable slot 304 through the thread 305, the two inner walls of the slot 301 are provided with limiting grooves 302, the two ends of the movable block 404 are fixedly connected with limiting blocks 4041, and the movable block 404 is slidingly connected to the inside of the slot 301 through the limiting blocks 4041 and the limiting grooves 302.

[0037] In the embodiment, the second through slot 502 can be used for sliding the slide rod 4042, and rotating the fastening bolt 5 can make it slide in the movable slot 304 under the action of the thread 305, so that the first inclined surface 307 and the second inclined surface 501 are rubbed with each other, the plastic buckle 306 is close to each other under the action of the friction and extrusion force of the first inclined surface 307 and the second inclined surface 501, so as to clamp and fix the slide rod 4042, and then fix the tightening pulley 4, so that the cable body 6 remains in a tightened state, the limiting blocks 4041 and the limiting grooves 302 can limit the movable block 404, so that the movable block 404 cannot be separated from the slot 301.

[0038] Example three;

[0039] As Figures 1-4As shown, the tight wire device for high-voltage transmission line according to the utility model embodiment, the outer wall of the take-up pulley 4 is fixedly connected with a hook 401, one end of the take-up pulley 4 is fixedly connected with a turntable 402, the end of the take-up pulley 4 away from the turntable 402 is fixedly connected with a ratchet wheel 403, one side of the movable block 404 at one end of the take-up pulley 4 is fixedly connected with a connecting block 4043, the inner side of the connecting block 4043 is provided with a wedge-shaped stop block 4046, one end of the wedge-shaped stop block 4046 is fixedly connected with a return spring 4048, the wedge-shaped stop block 4046 is arranged on one side of the ratchet wheel 403, the inner side of the connecting block 4043 is provided with a movable cavity 4044, the wedge-shaped stop block 4046 is slidably connected in the movable cavity 4044, one end of the return spring 4048 away from the wedge-shaped stop block 4046 is fixedly connected to the inner wall of the movable cavity 4044, the upper and lower inner walls of the movable cavity 4044 are provided with a sliding groove 4045, the upper and lower ends of the wedge-shaped stop block 4046 are fixedly connected with a sliding block 4047, the wedge-shaped stop block 4046 is slidably connected in the movable cavity 4044 through the sliding block 4047 and the sliding groove 4045, one side of the wedge-shaped stop block 4046 is fixedly connected with a push block 4049.

[0040] In the embodiment, the hook 401 is used for hooking the cable body 6, the return spring 4048 can drive the wedge-shaped stop block 4046 to perform a reset movement, so that the wedge-shaped stop block 4046 blocks the ratchet wheel 403, so that the ratchet wheel 403 cannot rotate in the reverse direction after rotating, thereby providing a certain stability for the take-up pulley 4, the sliding block 4047 and the sliding groove 4045 can limit the wedge-shaped stop block 4046, so that the wedge-shaped stop block 4046 cannot be separated from the movable cavity 4044, driving the push block 4049 can drive the wedge-shaped stop block 4046 to move, so that the wedge-shaped stop block 4046 releases the blocking of the ratchet wheel 403, so that the ratchet wheel 403 can rotate in the reverse direction.

[0041] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process is described in detail below.

[0042] In actual application, the sliding rod 4042 is pulled to drive the movable block 404 to drive the tightening pulley 4 to slide, so as to tighten the cable body 6. After the cable body 6 is tightened, the fastening bolt 5 is rotated to slide in the movable groove 304 under the action of the screw thread 305, so that the first inclined surface 307 and the second inclined surface 501 are rubbed against each other, the plastic buckle 306 is pressed and extruded under the action of the frictional force between the first inclined surface 307 and the second inclined surface 501, and the sliding rod 4042 is clamped and fixed, so that the tightening pulley 4 is fixed, and the cable body 6 is kept in the tightened state. When it is needed to further tighten the cable body 6, the cable body 6 is hung on the hook 401, then the rotating disc 402 is rotated to drive the tightening pulley 4 to further tighten the cable body 6, so that the cable body 6 can be tightened to a longer length, and the ratchet 403 can be rotated at the same time, and the wedge-shaped block 4046 can be driven by the return spring 4048 to block the ratchet 403, so that the ratchet 403 cannot be rotated in the reverse direction after being rotated, so that the tightening pulley 4 is fixed, and the cable body 6 cannot be loosened. When it is needed to loosen the cable body 6, the wedge-shaped block 4046 is driven by the push block 4049 to move, so that the wedge-shaped block 4046 is disengaged from the ratchet 403, so that the ratchet 403 can be rotated in the reverse direction, and the cable body 6 can be loosened.

[0043] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A line tensioning device for high-voltage transmission lines, comprising a base (1), a positioning pulley (2), a support plate (3), a tightening pulley (4), a cable body (6), characterized in that, The support plate (3) is fixedly connected to the upper end of the base (1), the positioning pulley (2) is rotatably connected to the two ends of the base (1), the tightening pulley (4) is arranged in the support plate (3), the front and rear ends of the tightening pulley (4) are movably connected with the movable block (404) through bearings, the movable block (404) is slidably connected to the inside of the support plate (3), the upper end of the movable block (404) is fixedly connected with the sliding rod (4042), the inside of the support plate (3) is provided with the movable groove (304), the inside of the movable groove (304) is circumferentially fixedly connected with the plastic buckle (306), the inside of the movable groove (304) is threadedly engaged with the fastening bolt (5), the upper end of the plastic buckle (306) is provided with the first inclined surface (307), the inner side of the bottom of the fastening bolt (5) is provided with the second inclined surface (501), and the cable body (6) is arranged between the positioning pulley (2) and the tightening pulley (4).

2. A line tensioning device for high voltage transmission lines according to claim 1, characterized in that The inside of the support plate (3) is provided with the slot (301), the movable block (404) is slidably connected to the inside of the slot (301), and the inner upper wall of the slot (301) is provided with the first through groove (303) communicated with the movable groove (304).

3. A line tensioning device for high voltage transmission lines according to claim 2, characterized in that The first through groove (303) is arranged at the center position of the circumferentially arranged plastic buckle (306), the inside of the fastening bolt (5) is provided with the second through groove (502), the second through groove (502) is matched with the first through groove (303), the inner wall of the movable groove (304) is provided with the thread pattern (305), and the fastening bolt (5) is threadedly engaged in the inside of the movable groove (304) through the thread pattern (305).

4. A line tensioning device for high voltage transmission lines according to claim 3, characterized in that The inner walls of the slot (301) on both sides are provided with the limiting groove (302), the two ends of the movable block (404) are fixedly connected with the limiting block (4041), and the movable block (404) is slidably connected to the inside of the slot (301) through the limiting block (4041) and the limiting groove (302).

5. A line tensioning device for high voltage transmission lines according to claim 4, characterized in that The outer wall of the tightening pulley (4) is fixedly connected with the hook (401), one end of the tightening pulley (4) is fixedly connected with the rotating disc (402), and the end, away from the rotating disc (402), of the tightening pulley (4) is fixedly connected with the ratchet wheel (403).

6. A line tensioning device for high voltage transmission lines according to claim 5, characterized in that One side of the movable block (404) at one end of the tightening pulley (4) is fixedly connected with the connecting block (4043), the inner side of the connecting block (4043) is provided with the wedge-shaped stop block (4046), one end of the wedge-shaped stop block (4046) is fixedly connected with the reset spring (4048), and the wedge-shaped stop block (4046) is arranged at one side of the ratchet wheel (403).

7. A line tensioning device for high voltage transmission lines according to claim 6, characterized in that The inner side of the connecting block (4043) is provided with the movable cavity (4044), the wedge-shaped stop block (4046) is slidably connected to the inside of the movable cavity (4044), and the end, away from the wedge-shaped stop block (4046), of the reset spring (4048) is fixedly connected to the inner wall of the movable cavity (4044).

8. A line tensioning device for high voltage transmission lines according to claim 7, characterized in that The upper and lower inner walls of the movable cavity (4044) are provided with sliding grooves (4045), the upper and lower ends of the wedge-shaped stopper (4046) are fixedly connected with sliding blocks (4047), the wedge-shaped stopper (4046) is slidably connected to the inside of the movable cavity (4044) through the sliding blocks (4047) and the sliding grooves (4045), and one side of the wedge-shaped stopper (4046) is fixedly connected with a push block (4049).

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