Ground wire device of power transmission line

Abstract

The invention relates to a power transmission line grounding wire device which comprises a jointing clamp set, a grounding cable and a grounding contact pin arranged at the bottom of the grounding cable, and further comprises an insulating rubber sleeve, the jointing clamp set comprises a shell sliding in the insulating rubber sleeve, and an arc-shaped wire clamping plate is arranged at the top of the shell in a sliding mode. A driving assembly is arranged in the shell, and the arc-shaped wire clamping plate is matched with the shell through the driving assembly to form a circular accommodating cavity for clamping a wire; and the grounding cable is electrically connected to the arc-shaped wire clamping plate, so that manual screwing is not needed when a wire is hung, and the safety of an operator can be guaranteed to a greater extent.

Description

Technical Field

[0001] The invention relates to a grounding wire device for a power transmission line, belonging to the technical field of power grid maintenance. Background Art

[0002] Traditional grounding rods are too heavy, so manual operation is very time-consuming and labor-intensive, which makes it difficult to effectively improve the efficiency of maintenance work. Taking the 220KV voltage level as an example, the entire set of grounding rods can be more than 2 meters long and weigh about 10kg. In addition, the engagement and disengagement of the grounding rod and the high-voltage line are all done by hand-tightening the handle. It is extremely laborious to rotate the handle while holding a heavy grounding rod. In actual operation, this manual tightening method not only takes up a lot of time for on-site operators, but also requires a lot of physical strength from the operators, which seriously affects the progress of on-site maintenance.

[0003] For example, CN103956595A discloses a transmission line change-of-direction hook grounding rod, comprising an insulating rod and a wire hook, wherein the insulating rod and the wire hook are connected via a universal shaft; the universal shaft comprises a transverse rotating shaft connected to the top of the insulating rod and a front-rear rotating shaft connected to the front end of the transverse rotating shaft; the wire hook is fixedly connected to the front end of the front-rear rotating shaft; the transverse rotating shaft and the front-rear rotating shaft are respectively provided with transverse rotating shaft fixing bolts and front-rear rotating shaft fixing bolts for positioning, which can facilitate operators to hang wires in different directions on the transmission line, but manual tightening is still required. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a grounding wire device for a power transmission line, which does not require manual tightening when hanging the wires, and can ensure the safety of operators to a greater extent.

[0005] The technical solution of the present invention is as follows:

[0006] A power transmission line grounding wire device comprises a wiring clamp group, a grounding cable and a grounding pin arranged at the bottom of the grounding cable, and also comprises an insulating rubber sleeve. The wiring clamp group comprises a shell sliding inside the insulating rubber sleeve, an arc-shaped wire clamping plate is slidably arranged on the top of the shell, and a driving component is arranged inside the shell. Through the driving component, the arc-shaped wire clamping plate cooperates with the shell to form a circular accommodating cavity for clamping the wire; the grounding cable is electrically connected to the arc-shaped wire clamping plate.

[0007] The shell includes a sliding part and a crescent part arranged on the top of the sliding part. The sliding part is slidably installed inside the insulating rubber sleeve. The front end of the crescent part is a semicircular notch. The arc-shaped clamping plate is slidably connected to the crescent part.

[0008] Among them, the driving assembly includes a rack vertically arranged inside the insulating rubber sleeve, a driving gear is rotatably arranged at the bottom of the sliding part, one end of the driving gear rotates through the side wall of the sliding part and meshes with the rack, a driven gear is arranged on the upper part of the sliding part, and the driving gear and the driven gear are connected by a toothed belt transmission; the upper and lower ends of the crescent part are respectively rotatably installed with a first gear and a second gear, and the first gear is meshed with the driven gear.

[0009] An arc-shaped channel is provided in the middle of the crescent part, and slideways are provided on both sides of the arc-shaped channel. Both sides of the arc-shaped clamping plate are slidably inserted into the slideways and slidably connected with the crescent part.

[0010] Wherein, the outer arc surface of the arc-shaped clamping plate is provided with teeth, and the teeth pass through the arc-shaped channel and mesh with the first gear and the second gear inside the crescent part.

[0011] Among them, a first through hole is provided on the side wall surface of the insulating rubber sleeve and a self-locking structure is provided inside the side wall of the insulating rubber sleeve, the self-locking structure includes a ring, the ring is fixedly arranged on the side away from the inside of the insulating rubber sleeve, a spring is also provided inside the side wall of the insulating rubber sleeve, one side of the spring is fixedly connected to the ring, and the other side of the spring is fixedly provided with an abutment block, a telescopic rod is fixedly connected to the abutment block, one end of the telescopic rod passes through the ring, and a pull ring is fixedly provided at the end of the telescopic rod passing through the ring, and a second through hole matching the first through hole is provided on the lower side wall of the sliding part.

[0012] Wherein, the rack is arranged on a side close to the arc-shaped clamping plate.

[0013] Wherein, the grounding cable is electrically connected to the side surface of the arc-shaped clamping plate.

[0014] Wherein, the arc shape of the arc-shaped clamping plate is three-quarters ring.

[0015] The present invention has the following beneficial effects:

[0016] The present invention greatly reduces the length of the overall grounding wire device compared to the existing device by sliding between the shell and the insulating rubber sleeve. The entire grounding rod of the existing device can be more than 2 meters long, which is quite inconvenient for operators to hold. Therefore, the device can reduce the length of the overall structure for easy use, and can also avoid the risk of operators falling after climbing to a high altitude due to the difficulty in holding due to the long length.

[0017] The present invention also uses an internal driving structure to wrap the wire by hooking the device onto the wire and pulling it downward, and locks it through a self-locking structure, which can avoid the risk of the wire falling off in strong winds and the like; at the same time, it can also avoid the need for operators to tighten the wire manually, thereby avoiding danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a half-section diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the local structure of the sliding part of the present invention when it slides to the top;

[0020] Figure 3 A half-section diagram of the self-locking structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the arc channel structure of the present invention.

[0022] The reference numerals in the figure are as follows:

[0023] 1. Insulating rubber sleeve; 2. Shell; 4. Arc-shaped clamping plate; 5. Circular accommodating chamber; 6. Grounding cable; 101. Rack; 102. Ring; 103. Spring; 104. Abutment block; 105. Telescopic rod; 106. Pull ring; 107. First through hole; 201. Sliding part; 202. Crescent part; 203. Driving gear; 204. Driven gear; 205. Toothed belt; 206. First gear; 207. Second gear; 208. Second through hole; 401. Tooth; 2021. Arc-shaped channel; 2022. Slideway. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] See also Figures 1 to 4 , the invention provides a technical solution:

[0026] A power transmission line grounding wire device, comprising a wiring clamp group, a grounding cable 6 and a grounding pin arranged at the bottom of the grounding cable 6, and also comprising an insulating rubber sleeve 1, the wiring clamp group comprises a shell 2 sliding inside the insulating rubber sleeve 1, an arc-shaped clamping plate 4 is slidably arranged on the top of the shell 2, and a driving component is arranged inside the shell 2, through which the arc-shaped clamping plate 4 cooperates with the shell 2 to form a circular accommodating cavity 5 for clamping the wire; the grounding cable 6 is electrically connected to the arc-shaped clamping plate 4;

[0027] Specifically, the housing 2 includes a sliding portion 201 and a crescent portion 202 arranged at the top of the sliding portion 201, the sliding portion 201 is slidably installed inside the insulating rubber sleeve 1, the front end of the crescent portion 202 is a semicircular notch, and the arc-shaped clamping plate 4 is slidably connected to the crescent portion 202; the arc of the arc-shaped clamping plate 4 is a three-quarter ring; specifically, the arc-shaped clamping plate 4 performs a circular motion on the semicircular notch at the front end of the crescent portion 202 through the up and down sliding of the sliding portion 201 of the arc-shaped clamping plate 4 inside the insulating rubber sleeve 1, when the sliding portion 201 is at the bottom inside the insulating rubber sleeve 1, the upper end of the arc-shaped clamping plate 4 exceeds the semicircular notch at the front end of the crescent portion 202, and the lower end of the arc-shaped clamping plate 4 is located On the semicircular notch at the front end of the crescent portion 202, the grounding cable 6 is electrically connected to the side of the upper end of the arc-shaped clamping plate 4 that exceeds the semicircular notch at the front end of the crescent portion 202, and is close to the upper end position of the semicircular notch; and when the sliding portion 201 slides to the top inside the insulating rubber sleeve 1, the arc-shaped clamping plate 4 is driven by the internal driving component to perform a circular motion until the upper and lower ends of the arc-shaped clamping plate 4 are both located inside the semicircular notch, and the upper and lower ends of the arc-shaped clamping plate 4 are on the same vertical line. At this time, the grounding cable 6 is electrically connected to the arc-shaped clamping plate 4 located outside the semicircular notch, so during the rotation process, the existence of the grounding cable 6 will not hinder the rotation;

[0028] The driving assembly includes a rack 101 vertically arranged inside the insulating rubber sleeve 1, and the rack 101 is arranged near one side of the arc-shaped clamping plate 4; a driving gear 203 is rotatably arranged at the bottom of the sliding part 201, one end of the driving gear 203 rotates through the side wall of the sliding part 201 and meshes with the rack 101, and a driven gear 204 is arranged on the upper part of the sliding part 201, and the driving gear 203 and the driven gear 204 are connected by a toothed belt 205; the upper and lower ends of the crescent part 202 are respectively rotatably installed with a first gear 206 and a second gear 207, and the first gear 206 meshes with the driven gear 204; when the sliding part 201 slides inside the insulating rubber sleeve 1, due to the meshing of the driving gear 203 and the rack 101, the driving gear 203 will start to rotate under the movement, and due to the action of the toothed belt 205, the driven gear 204 and the first gear 206 will be driven to rotate in turn;

[0029] Furthermore, an arc-shaped channel 2021 is provided in the middle of the crescent portion 202, and slideways 2022 are provided on both sides of the arc-shaped channel 2021. Both sides of the arc-shaped clamping plate 4 are slidably inserted in the slideways 2022 and slidably connected to the crescent portion 202; the teeth of the first gear 206 and the second gear 207 both pass through the arc-shaped channel 2021; at the same time, the outer arc surface of the arc-shaped clamping plate 4 is provided with teeth 401, and the teeth 401 pass through the arc-shaped channel 2021 and mesh with the first gear 206 and the second gear 207 inside the crescent portion 202; therefore, when the first gear 206 rotates as described above, it will drive the arc-shaped clamping plate 4 to perform a circular motion, and at the same time, the teeth 401 mesh with the second gear 207, which will drive the second gear 207 to rotate;

[0030] At the same time, when the sliding part 201 slides to the top inside the insulating rubber sleeve 1, the self-locking structure will be activated to fix the position of the sliding part 201 and the insulating rubber sleeve 1; and when the device needs to be removed, it is only necessary to loosen the self-locking structure after the operation is completed. Due to the weight of the shell 2, it will slide down into the bottom of the insulating rubber sleeve 1. At the same time, the operator can quickly move the insulating rubber sleeve 1 upward. Due to the fast moving speed, the rotation speed of each gear is also fast. Therefore, the arc clamping plate 4 will move in the opposite direction, and the wire can be separated from the device;

[0031] Specifically, the side wall surface of the insulating rubber sleeve 1 is provided with a first through hole 107 and the side wall of the insulating rubber sleeve 1 is provided with a self-locking structure, the self-locking structure includes a collar 102, the collar 102 is fixedly arranged at a side away from the inside of the insulating rubber sleeve 1, and a spring 103 is also arranged inside the side wall of the insulating rubber sleeve 1, one side of the spring 103 is fixedly connected to the collar 102, and the other side of the spring 103 is fixedly provided with an abutment block 104, and the abutment block 104 is fixedly connected to the telescopic rod 105 One end of the telescopic rod 105 passes through the ring 102, and a pull ring 106 is fixedly provided at the end of the telescopic rod 105 passing through the ring 102. A second through hole 208 matching the first through hole 107 is provided on the lower side wall of the sliding part 201; when the sliding part 201 slides to the top of the insulating rubber sleeve 1, the second through hole 208 matches the first through hole 107, and the spring 103 is no longer hindered by the side wall of the sliding part 201 and is released, and the locking is completed by inserting into the inside of the insulating rubber sleeve 1.

[0032] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A power transmission line grounding wire device, comprising a wiring clamp group, a grounding cable (6) and a grounding pin arranged at the bottom of the grounding cable (6), characterized in that: It also includes an insulating rubber sleeve (1), the wiring clamp group includes a shell (2) sliding inside the insulating rubber sleeve (1), an arc-shaped clamping plate (4) is slidably arranged on the top of the shell (2), and a driving component is arranged inside the shell (2), through which the arc-shaped clamping plate (4) cooperates with the shell (2) to form a circular accommodating cavity (5) for clamping the wire; the grounding cable (6) is electrically connected to the arc-shaped clamping plate (4).

2. A power transmission line grounding wire device as claimed in claim 1, characterized in that: The housing (2) comprises a sliding portion (201) and a crescent portion (202) arranged at the top of the sliding portion (201); the sliding portion (201) is slidably mounted inside the insulating rubber sleeve (1); the front end of the crescent portion (202) is a semicircular notch; and the arc-shaped clamping plate (4) is slidably connected to the crescent portion (202).

3. A power transmission line grounding wire device as claimed in claim 2, characterized in that: The driving assembly comprises a rack (101) vertically arranged inside the insulating rubber sleeve (1); a driving gear (203) is rotatably arranged at the bottom of the sliding portion (201); one end of the driving gear (203) rotates through the side wall of the sliding portion (201) and meshes with the rack (101); a driven gear (204) is arranged at the upper portion of the sliding portion (201); the driving gear (203) and the driven gear (204) are connected to each other through a toothed belt (205); and a first gear (206) and a second gear (207) are rotatably arranged at the upper and lower ends of the crescent portion (202), respectively, and the first gear (206) meshes with the driven gear (204).

4. A power transmission line grounding wire device as claimed in claim 3, characterized in that: An arc-shaped channel (2021) is provided in the middle of the crescent portion (202), and slideways (2022) are provided on both sides of the arc-shaped channel (2021). Both sides of the arc-shaped clamping plate (4) are slidably inserted into the slideways (2022) and are slidably connected to the crescent portion (202).

5. A power transmission line grounding wire device as claimed in claim 4, characterized in that: The outer arc surface of the arc-shaped clamping plate (4) is provided with teeth (401), and the teeth (401) pass through the arc-shaped channel (2021) and mesh with the first gear (206) and the second gear (207) inside the crescent portion (202).

6. A power transmission line grounding wire device as claimed in claim 5, characterized in that: The side wall surface of the insulating rubber sleeve (1) is provided with a first through hole (107), and a self-locking structure is provided inside the side wall of the insulating rubber sleeve (1), wherein the self-locking structure comprises a collar (102), wherein the collar (102) is fixedly arranged at a side away from the inside of the insulating rubber sleeve (1), and a spring (103) is also provided inside the side wall of the insulating rubber sleeve (1), wherein one side of the spring (103) is fixedly connected to the collar (102), and an abutment block (104) is fixedly arranged on the other side of the spring (103), and a telescopic rod (105) is fixedly connected to the abutment block (104), wherein one end of the telescopic rod (105) passes through the collar (102), and a pull ring (106) is fixedly arranged at the end of the telescopic rod (105) passing through the collar (102), and a second through hole (208) matching the first through hole (107) is provided on the lower side wall of the sliding portion (201).

7. A power transmission line grounding wire device as claimed in claim 3, characterized in that: The rack (101) is arranged on a side close to the arc-shaped clamping plate (4).

8. A power transmission line grounding wire device as claimed in claim 1, characterized in that: The grounding cable (6) is electrically connected to the side surface of the arc-shaped clamping plate (4).

9. A power transmission line grounding wire device as claimed in claim 1, characterized in that: The arc shape of the arc-shaped clamping plate (4) is three-quarters of a ring.

10. A power transmission line grounding wire device as claimed in claim 6, characterized in that: The diameter of the pull ring (106) is greater than the length of the first through hole (107).

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