Overhead transmission line short circuit grounding clamping wire clamp

Abstract

The utility model relates to the technical field of power transmission line construction tools, and discloses an overhead power transmission line short circuit grounding clamping wire clamp which comprises a main body structure and an adjusting structure, the adjusting structure is arranged at the bottom of the main body structure, the main body structure comprises a supporting rod, and a U-shaped clamp is fixedly connected to the outer wall of the left side of the supporting rod. A servo motor is started to drive a screw rod to rotate, the rotating screw rod drives a movable clamping block to move in a U-shaped clamp, a long-strip-shaped copper grounding wire is clamped through the movable clamping block, a control motor is started to drive a gear to rotate, and the rotating gear drives a meshed rack to move. According to the clamping wire clamp, the motor drives the arc-shaped clamping block to move in the arc-shaped clamping seat, the arc-shaped clamping block driven by the motor clamps the circular copper grounding wire, so that compared with manual operation, clamping of the grounding wire is firmer, and the clamping wire clamp can clamp two different types of copper grounding wires and is good in practicability and universality.

Description

Technical Field

[0001] The utility model discloses a short-circuit grounding clamp for an overhead power transmission line, and relates to the technical field of power transmission line construction tools. Background Art

[0002] Power lines refer to the lines used to transmit electric energy between power plants, substations and power users. They are an important part of the power supply system and are responsible for the transmission and distribution of electric energy. Power lines are conductor loops that connect transformers and distribution stations with various electric energy users or electrical equipment, and transmit and distribute electric energy from the power supply end (transformer and distribution station) to the load end (electric energy users or electrical equipment). Power lines are divided into high-voltage lines and low-voltage lines according to voltage. High-voltage lines refer to power lines with voltages of 1kV and above, and low-voltage lines refer to power lines below 1kV. Some people call power lines from 1kV to 10kV or 35kV medium-voltage lines, power lines from 35kV to 110kV or 220kV high-voltage lines, and power lines above 220kV or 330kV ultra-high-voltage lines. Power lines are divided into overhead lines, cable lines and indoor lines according to their structural forms. The basic requirements of power lines are: safe and reliable power supply, convenient operation, flexible operation, economy and conducive to development. When electrical lines are shut down for construction and maintenance, a short-circuit grounding wire must be connected to ensure that construction personnel work within the protection range of the short-circuit grounding.

[0003] According to the "A short-circuit grounding clamp for overhead power transmission line construction" disclosed in Chinese patent publication number CN209434425U, by setting a fixed sleeve, a fastening bolt and a threaded hole, it is convenient to disassemble the operating rod and the clamp device, so as to achieve the purpose of convenient carrying. Through the cooperation of the fixed clamp block, the movable clamp block, the fixed block, the threaded column and the knob, the threaded column is rotated using the knob to move the movable clamp block up and down, so that the line can be clamped in cooperation with the fixed clamp block. Through the setting of the fixed disk, the rotating shaft and the rotating disk, the rotating disk can rotate around the fixed disk, so that the use angle of the clamp device can be adjusted, so as to achieve the purpose of convenient use.

[0004] However, in actual use, the above device has the problem that the clamp block cannot clamp the line firmly by rotating the threaded column manually and can only clamp one type of copper grounding wire, which results in poor practicality and versatility. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a short-circuit grounding clamp for overhead power transmission lines, which clamps the grounding wire more firmly than manual operation, and the clamp can clamp two different types of copper grounding wires, with good practicality and versatility.

[0006] The purpose of the utility model is achieved in this way:

[0007] An overhead power transmission line short-circuit grounding clamp comprises a main structure and an adjustment structure, wherein the adjustment structure is arranged at the bottom of the main structure;

[0008] The main structure includes a support rod, a U-shaped clip is fixedly connected to the left outer wall of the support rod, a servo motor is fixedly connected to the top of the U-shaped clip, a screw is fixedly connected to the output end of the servo motor, a movable clamp is threadedly connected to the outer surface of the screw, an arc-shaped clamp is fixedly connected to the right outer wall of the support rod, an arc-shaped clamp is arranged inside the arc-shaped clamp, a rack is fixedly connected to the bottom of the arc-shaped clamp, a gear is meshed on the outer surface of the rack, and a control motor is fixedly connected to the outer wall of one side of the gear;

[0009] The adjustment structure comprises an insulating rod, a telescopic rod is slidably connected inside the insulating rod, and an adjustment groove is formed on the outer wall of the insulating rod.

[0010] Preferably, a movable groove is formed on the inner wall of the U-shaped clamp, and one end of the screw rod away from the servo motor extends into the movable groove.

[0011] Preferably, sliding grooves are provided on both sides of the inner wall of the arc-shaped holder, a slider is slidably connected inside the sliding groove, and the outer surface of the slider is fixedly connected to the outer wall of the rack.

[0012] Preferably, the control motor is fixedly connected to the outer wall of the arc-shaped holder.

[0013] Preferably, a fixing groove is formed on the outer wall of the telescopic rod, a fixing block is arranged inside the fixing groove, and the top of the fixing block is semicircular.

[0014] Preferably, a return spring is fixedly connected to the inner wall of the fixing groove, and the top of the return spring is fixedly connected to the bottom of the fixing block.

[0015] Preferably, the inner wall of the insulating rod is provided with equidistant positioning grooves, and the shape and size of the positioning grooves are matched with the fixing grooves.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, the utility model starts a servo motor to drive the screw to rotate, and the rotating screw drives the movable clamping block to move in the U-shaped clamp, and the moving movable clamping block clamps the long copper grounding wire. By starting the control motor, the control motor drives the gear to rotate, and the rotating gear drives the meshing rack to move, and also drives the arc clamping block to move in the arc clamping seat. The movable clamping block and the U-shaped clamp can cooperate to clamp one copper grounding wire, and the arc clamping block and the arc clamping seat can cooperate to clamp another copper grounding wire. The arc clamping block driven by the motor clamps the circular copper grounding wire, which is more firmly clamped than manual operation, and the clamping wire clamp can clamp two different types of copper grounding wires, and has good practicality and versatility.

[0018] Secondly, the utility model rotates the insulating rod so that the fixing block is squeezed out of the positioning groove, thereby releasing the limit fixation of the telescopic rod. The fixing block is moved to the adjustment groove, the telescopic rod is pulled, the required length is selected, and the insulating rod is rotated again to align the fixing groove with the positioning groove. The reset spring applies an outward force to the fixing block, so that the fixing block is stuck in the positioning groove, thereby completing the limit fixation of the telescopic rod. The structure is simple and convenient for staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the main structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0022] Figure 4 For the utility model Figure 3 A schematic diagram of the structure at point A;

[0023] Figure 5 For the utility model Figure 3 Enlarged schematic diagram of the structure at point B.

[0024] Wherein: 1. Main structure; 101. Support rod; 102. U-shaped clamp; 103. Servo motor; 104. Screw; 105. Movable clamp block; 106. Clamp seat; 107. Arc clamp block; 108. Rack; 109. Gear; 110. Control motor; 111. Slider; 2. Adjustment structure; 201. Insulating rod; 202. Telescopic rod; 203. Adjustment slot; 204. Fixed groove; 205. Fixed block; 206. Reset spring; 207. Positioning groove. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0026] The overhead transmission line short-circuit grounding clamp under this specific implementation method is as follows: Figure 1-5 As shown, it includes a main structure 1 and an adjustment structure 2, and the adjustment structure 2 is arranged at the bottom of the main structure 1;

[0027] The main structure 1 includes a support rod 101, a U-shaped clamp 102 is fixedly connected to the left outer wall of the support rod 101, a servo motor 103 is fixedly connected to the top of the U-shaped clamp 102, a screw 104 is fixedly connected to the output end of the servo motor 103, a movable clamp 105 is threadedly connected to the outer surface of the screw 104, an arc-shaped clamp 106 is fixedly connected to the right outer wall of the support rod 101, an arc-shaped clamp 107 is arranged inside the arc-shaped clamp 106, a rack 108 is fixedly connected to the bottom of the arc-shaped clamp 107, a gear 109 is meshed on the outer surface of the rack 108, and a control motor 110 is fixedly connected to the outer wall of one side of the gear 109;

[0028] The adjustment structure 2 comprises an insulating rod 201 , a telescopic rod 202 is slidably connected inside the insulating rod 201 , and an adjustment slot 203 is formed on the outer wall of the insulating rod 201 .

[0029] Through the above technical scheme, by starting the servo motor 103, the servo motor 103 drives the screw 104 to rotate, and the rotating screw 104 drives the movable clamping block 105 to move in the U-shaped clamp 102, and the movable clamping block 105 is used to clamp the long copper grounding wire. By starting the control motor 110, the control motor 110 drives the gear 109 to rotate, and the rotating gear 109 drives the meshing rack 108 to move, and also drives the arc clamping block 107 to move in the arc clamping seat 106. The movable clamping block 105 and the U-shaped clamp 102 can cooperate to clamp one copper grounding wire, and the arc clamping block 107 and the arc clamping seat 106 can cooperate to clamp another copper grounding wire. The arc clamping block 107 driven by the motor clamps the circular copper grounding wire, so that the grounding wire is clamped more firmly than manual operation, and the clamping wire clamp can clamp two different types of copper grounding wires, and has good practicality and versatility.

[0030] By rotating the insulating rod 201, the fixing block 205 is squeezed out of the positioning groove 207, and the limit fixation of the telescopic rod 202 is released. The fixing block 205 is moved to the adjustment groove 203, and the telescopic rod 202 is pulled to select the required length. The insulating rod 201 is rotated again to align the fixing groove 204 with the positioning groove 207. The return spring 206 gives the fixing block 205 an outward force, so that the fixing block 205 is stuck in the positioning groove 207, and the limit fixation of the telescopic rod 202 is completed. The structure is simple and convenient for staff to use.

[0031] Specifically, a movable groove is formed on the inner wall of the U-shaped clip 102 , and one end of the screw rod 104 away from the servo motor 103 extends into the movable groove.

[0032] Through the above technical solution, by providing the moving groove, the screw rod 104 drives the movable clamping block 105 to move in the U-shaped clamp 102 .

[0033] Specifically, sliding grooves are provided on both sides of the inner wall of the arc-shaped clamping seat 106 , and a slider 111 is slidably connected inside the sliding groove. The outer surface of the slider 111 is fixedly connected to the outer wall of the rack 108 .

[0034] Through the above technical solution, by arranging sliders 111 on both sides of the rack 108 , the rack 108 and the arc-shaped clamping block 107 can slide in the arc-shaped clamping seat 106 .

[0035] Specifically, the control motor 110 is fixedly connected to the outer wall of the arc-shaped holder 106 .

[0036] Through the above technical solution, the control motor 110 is fixedly connected to the outer wall of the arc-shaped holder 106 to support the control motor 110, and the control motor 110 drives the gear 109 to rotate.

[0037] Specifically, a fixing groove 204 is formed on the outer wall of the telescopic member 201 , a fixing block 205 is disposed inside the fixing groove 204 , and the top of the fixing block 205 is semicircular.

[0038] Through the above technical solution, the top of the fixing block 205 is semicircular, which makes it easy for the fixing block 205 to be squeezed and retracted into the fixing groove 204.

[0039] Specifically, a return spring 206 is fixedly connected to the inner wall of the fixing groove 204 , and the top of the return spring 206 is fixedly connected to the bottom of the fixing block 205 .

[0040] Through the above technical solution, by providing the return spring 206 , the return spring 206 applies an outward force to the fixing block 205 , so that the fixing block 205 is separated from the fixing groove 204 .

[0041] Specifically, the inner wall of the insulating rod 201 is provided with equidistant positioning grooves 207 , and the shape and size of the positioning grooves 207 are matched with the fixing grooves 204 .

[0042] Through the above technical solution, by setting equidistant positioning grooves 207 on the inner wall of the telescopic rod 202, the fixed block 207 is inserted into the positioning groove 207 to complete the limited fixation of the telescopic rod 202. The shape and size of the positioning groove 207 are adapted to the fixing groove 204, which facilitates the fixed block 205 to detach from the positioning groove 207.

[0043] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A short-circuit grounding clamp for an overhead power transmission line, comprising a main structure (1) and an adjustment structure (2), characterized in that: An adjustment structure (2) is provided at the bottom of the main structure (1); The main structure (1) comprises a support rod (101), a U-shaped clamp (102) is fixedly connected to the left outer wall of the support rod (101), a servo motor (103) is fixedly connected to the top of the U-shaped clamp (102), a screw rod (104) is fixedly connected to the output end of the servo motor (103), a movable clamp block (105) is threadedly connected to the outer surface of the screw rod (104), an arc-shaped clamping seat (106) is fixedly connected to the right outer wall of the support rod (101), an arc-shaped clamping block (107) is arranged inside the arc-shaped clamping seat (106), a rack (108) is fixedly connected to the bottom of the arc-shaped clamping block (107), a gear (109) is meshed on the outer surface of the gear (109), and a control motor (110) is fixedly connected to the outer wall of one side of the gear (109); The adjustment structure (2) comprises an insulating rod (201), a telescopic rod (202) is slidably connected inside the insulating rod (201), and an adjustment groove (203) is provided on the outer wall of the insulating rod (201).

2. The short-circuit grounding clamp for overhead power transmission lines according to claim 1, characterized in that: The inner wall of the U-shaped clamp (102) is provided with a moving groove, and one end of the screw rod (104) away from the servo motor (103) extends into the moving groove.

3. The short-circuit grounding clamp for overhead power transmission lines according to claim 1, characterized in that: Slide grooves are provided on both sides of the inner wall of the arc-shaped clamping seat (106), a slider (111) is slidably connected inside the slide groove, and the outer surface of the slider (111) is fixedly connected to the outer wall of the rack (108).

4. The short-circuit grounding clamp for overhead power transmission lines according to claim 1, characterized in that: The control motor (110) is fixedly connected to the outer wall of the arc-shaped holder (106).

5. The short-circuit grounding clamp for overhead power transmission lines according to claim 1, characterized in that: The outer wall of the telescopic rod (202) is provided with a fixing groove (204), a fixing block (205) is arranged inside the fixing groove (204), and the top of the fixing block (205) is semicircular.

6. The short-circuit grounding clamp for overhead power transmission lines according to claim 5, characterized in that: A return spring (206) is fixedly connected to the inner wall of the fixing groove (204), and the top of the return spring (206) is fixedly connected to the bottom of the fixing block (205).

7. The short-circuit grounding clamp for overhead power transmission lines according to claim 1, characterized in that: The inner wall of the insulating rod (201) is provided with equidistant positioning grooves (207), and the shape and size of the positioning grooves (207) are matched with the fixing grooves (204).

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