A tension clamp equipotential device

Abstract

The present invention proposes a potential-equalizing device for a tension clamp, the structure of which includes a clamp frame (1), a bolt (2), a slider (3), and a puncture (5); wherein a threading slot (8) is provided on the clamp frame (1), the bolt (2) and the puncture (5) are respectively located on the side walls of the threading slot (8), one end of the bolt (2) passes through the side wall of the threading slot (8) and extends into the threading slot (8), the end of the bolt (2) extending into the threading slot (8) is fixedly connected to the slider (3), and the slider (3) and the puncture (5) are placed opposite to each other; the clamp frame (1) is connected to the tension clamp (9) through a conductive connection device. The present invention utilizes the puncture principle to directly cut into the insulation layer of the wire and directly contact the wire core, thereby achieving the same potential as the wire core and the tension clamp, thereby achieving the effect of eliminating the potential difference and effectively terminating the discharge fault of the tension clamp.

Description

Technical Field

[0001] The invention relates to a tension clamp equipotential device and belongs to the technical field of power equipment maintenance. Background Art

[0002] Discharge failures of tension clamps on distribution network lines are relatively common and are caused by many factors, including equipment quality, construction technology, personnel skill level, and line aging. Currently, such failures are mainly handled by manual live-line operations, in which operators need to wear thick insulating clothing and take complex insulation protection safety measures. This is labor-intensive and carries high risks. Not only are the professional qualities of operators required to be high, but the operating efficiency is also limited by their physical fitness, and various factors can easily lead to personal injury and equipment safety accidents. With the development of social economy and science and technology, the level of intelligent production is constantly improving, and robots are becoming increasingly important in modern production and life, especially in some situations with high risk factors and high labor intensity.

[0003] In actual operation, the discharge of the tension clamp is mainly due to the damage of the insulation layer of the conductor. The tension clamp is often easily broken at the contact point between the conductor and the tension clamp, resulting in a gap between the conductor and the insulation. Therefore, there will be a potential difference between the metal tension clamp and the conductor; a potential difference is generated between the conductor core and the metal tension clamp, and the conductor discharges to the tension clamp through the damaged part; therefore, how to eliminate the potential difference between the conductor core and the tension clamp is very important to ultimately eliminate the discharge failure of the tension clamp.

[0004] In addition, some areas have begun to use intelligent robots to perform live-line operations, freeing workers from heavy and repetitive work, and enabling rapid assembly operations, improving work efficiency, reducing the labor intensity of workers, and greatly reducing personal safety risks; but currently live-line operation robots only have a few functions such as connecting lead wires and installing grounding rings. Therefore, it is very important to develop a tooling that can cooperate with robot operations to solve the problem of partial discharge fault handling of tension clamps and expand the actual operation content of live-line operation robots. Summary of the Invention

[0005] The present invention proposes a tension clamp equipotential device, the purpose of which is to terminate the tension clamp discharge fault by achieving the same potential as the conductor core and the tension clamp.

[0006] The technical solution of the present invention is: a tension clamp equipotential device, whose structure includes a clamp frame 1, a bolt 2, a slider 3, and a puncture 5; wherein, the clamp frame 1 is provided with a threading slot 8, the bolt 2 and the puncture 5 are respectively located on the side walls on both sides of the threading slot 8, one end of the bolt 2 passes through one side wall of the threading slot 8 and extends into the threading slot 8, the end of the bolt 2 extending into the threading slot 8 is fixedly connected to the slider 3, and the slider 3 is placed opposite to the puncture 5; the clamp frame 1 is connected to the tension clamp 9 through a conductive connection device.

[0007] Furthermore, the bolt 2 is a hexagonal bolt; the puncture 5 and the wire clamp frame 1 are both made of conductive materials.

[0008] Furthermore, the threading slot 8 on the wire clamp frame 1 includes a left side wall 8-1 and a right side wall 8-2, and there is a first threaded hole 8-3 on the right side wall 8-2. The internal thread in the first threaded hole 8-3 matches the external thread on the bolt 2, and the threaded end of the bolt 2 passes through the right side wall 8-2 and is fixedly connected to the slider 3; the inner side of the left side wall 8-1 is fixedly connected to the puncture 5; when in use, the threading slot 8 of the wire clamp frame 1 is used to pass the wire, and the depth of the bolt 2 inserted into the threading slot 8 through the right side wall 8-2 is controlled by rotating the bolt 2, thereby controlling the size of the gap between the slider 3 and the puncture 5, so that the slider 3 and the puncture 5 can clamp or loosen the wire.

[0009] Furthermore, one end of the slider 3 is fixedly connected to the bolt 2, and the other end of the slider 3 faces the puncture 5. The end of the slider 3 facing the puncture 5 has a groove 3-1; the size of the groove 3-1 matches the cross-sectional size of the wire 10 to be clamped; when in use, when the slider 3 and the puncture 5 are required to clamp the wire 10, the inner surface of the groove 3-1 is just clamped with the outer surface of the wire 10.

[0010] Furthermore, the slider 3 has a threaded column 3-2 on one end facing the bolt 2, and the bolt 2 has a second threaded hole 2-1 on one side facing the slider 3, and the external thread on the side of the threaded column 3-2 matches the internal thread of the second threaded hole 2-1; the slider 3 and the bolt 2 are fixedly connected by screwing the threaded column 3-2 into the second threaded hole 2-1.

[0011] Furthermore, the groove 3 - 1 is a V-shaped groove. When the slider 3 and the puncture 5 are required to clamp the wire 10 , the wire 10 is clamped into the V-shaped groove.

[0012] Furthermore, the puncture 5 has a plurality of teeth 5-1 distributed on one end toward the slider 3, each tooth is in the shape of a needle, the length of the teeth on both sides of the puncture 5 is greater than the length of the teeth in the middle, and the ends of all the tooth tips form a concave surface as a whole, and the shape of the concave surface matches the cross-section of the wire to be clamped.

[0013] Furthermore, the conductive connecting device includes a torsion spring 6 and a conductive spring clip 7; there is a torsion spring groove 11 above the wire clamp frame 1; the torsion spring 6 is installed in the torsion spring groove 11 above the wire clamp frame 1, the torsion spring 6 is in contact with one end of the conductive spring clip 7, and the other end of the conductive spring clip 7 is in contact with the tension clamp 9, and there is a spring clip support device in the torsion spring groove 11, the conductive spring clip 7 is installed above the wire clamp frame 1 through the spring clip support device, and the conductive spring clip 7 is rotatably connected to the spring clip support device; the torsion spring 6 and the tension clamp 9 are respectively located on both sides of the spring clip support device, the torsion spring 6 is located below one end of the conductive spring clip 7, and the tension clamp 9 is located below the other end of the conductive spring clip 7.

[0014] Furthermore, the spring support device includes a pin hole 12, which is located on both side walls of the torsion spring slot 11. A pin is inserted into the pin hole 12, and the pin passes through the conductive spring 7 in the torsion spring slot 11. The conductive spring 7 can rotate around the pin.

[0015] Furthermore, the aforementioned tension clamp equipotential device is characterized in that it also includes a limiting groove 4 , which is located on the clamp frame 1 .

[0016] Beneficial effects of the present invention:

[0017] 1) The present invention utilizes the puncture principle to directly cut into the insulation layer of the conductor and directly contact the core, achieving the same potential between the conductor core and the tension clamp, thereby eliminating the potential difference and effectively terminating the discharge fault of the tension clamp;

[0018] 2) Through further design, it is convenient to further connect with the robotic arm, so that the corresponding live-working robot can perform the operation, thereby reducing personal safety risks and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attachment Figure 1 It is a structural diagram of the tension clamp equipotential device.

[0020] Attachment Figure 2 It is a schematic diagram of the connection structure between the wire clamp frame 1, the bolt 2 and the slider 3.

[0021] Attachment Figure 3 It is a schematic diagram of the internal structure of the tension clamp equipotential device.

[0022] In the accompanying drawings, 1 is the wire clamp frame, 2 is the bolt, 2-1 is the second threaded hole, 3 is the slider, 3-1 is the groove, 3-2 is the threaded column, 4 is the limit groove, 5 is the puncture, 5-1 is the tooth, 6 is the torsion spring, 7 is the conductive spring, 8 is the threading slot, 8-1 is the left side wall, 8-2 is the right side wall, 8-3 is the first threaded hole, 9 is the tension clamp, 10 is the conductor, 11 is the torsion spring groove, and 12 is the pin shaft hole. DETAILED DESCRIPTION

[0023] A tension clamp equipotential device, whose structure includes a clamp frame 1, a bolt 2, a slider 3, and a puncture 5; wherein, the clamp frame 1 is provided with a threading slot 8, the bolt 2 and the puncture 5 are respectively located on the side walls of the threading slot 8, one end of the bolt 2 passes through one side wall of the threading slot 8 and extends into the threading slot 8, the end of the bolt 2 extending into the threading slot 8 is fixedly connected to the slider 3, and the slider 3 is placed opposite to the puncture 5; the clamp frame 1 is connected to the tension clamp 9 through a conductive connection device.

[0024] The bolt 2 is preferably a hexagonal bolt.

[0025] The wire threading slot 8 on the wire clamp frame 1 includes a left side wall 8-1 and a right side wall 8-2. There is a first threaded hole 8-3 on the right side wall 8-2. The internal thread in the first threaded hole 8-3 matches the external thread on the bolt 2. The threaded end of the bolt 2 passes through the right side wall 8-2 and is fixedly connected to the slider 3.

[0026] The inner side of the left side wall 8-1 is fixedly connected to the puncture 5; when in use, the wire threading slot 8 of the wire clamp frame 1 is used to pass the wire, and the depth of the bolt 2 inserted into the wire threading slot 8 through the right side wall 8-2 is controlled by rotating the bolt 2, thereby controlling the size of the gap between the slider 3 and the puncture 5, so that the slider 3 and the puncture 5 can clamp or loosen the wire.

[0027] One end of the slider 3 is fixedly connected to the bolt 2, and the other end of the slider 3 faces the puncture 5. The end of the slider 3 facing the puncture 5 has a groove 3-1; the size of the groove 3-1 matches the cross-sectional size of the wire 10 to be clamped; when in use, when the slider 3 and the puncture 5 are needed to clamp the wire 10, the inner surface of the groove 3-1 is just clamped with the outer surface of the wire 10, which facilitates the clamping and fixation of the wire 10.

[0028] The slider 3 has a threaded column 3-2 on one end facing the bolt 2, and the bolt 2 has a second threaded hole 2-1 on one side facing the slider 3. The external thread on the side of the threaded column 3-2 matches the internal thread of the second threaded hole 2-1; the slider 3 and the bolt 2 are fixedly connected by screwing the threaded column 3-2 into the second threaded hole 2-1.

[0029] The groove 3-1 is preferably a V-shaped groove. When the slider 3 and the puncture 5 are needed to clamp the wire 10, the wire is stuck in the V-shaped groove. Since the opening of the V-shaped groove has the characteristics of being large on the outside and small on the inside, the same V-shaped groove can be suitable for wires of more diameters.

[0030] The puncture 5 is distributed with several teeth 5-1 at one end facing the slider 3, each tooth is in the shape of a puncture needle, the length of the teeth on both sides of the puncture 5 is greater than the length of the tooth in the middle, and the ends of all the tooth tips form a concave surface as a whole, and the shape of the concave surface matches the cross-section of the wire to be clamped; when in use, the puncture 5 and the slider 3 are used in combination to ensure that no matter what position the wire is inserted into the threading slot 8, it can eventually be adjusted to the center position of the threading slot 8 and pierced by the puncture 5 during the movement of the slider 3 toward the middle.

[0031] The puncture 5 and the wire clamp frame 1 are both made of conductive materials; when the present invention is working, the wire passes through the threading slot 8, and the slider 3 is controlled to move toward the center to squeeze the wire until the wire is completely inserted into the puncture 5, so that the voltage inside and outside the wire is conductive, and the potential difference between the wire and the tension clamp is finally eliminated through the conductive effect of the puncture 5, the wire clamp frame 1, and the conductor connecting device; the present invention is suitable for eliminating the potential difference between the high-voltage wire and the tension clamp.

[0032] The conductive connecting device includes a torsion spring 6 and a conductive spring clip 7; a torsion spring slot 11 is provided above the wire clamp frame 1; the torsion spring 6 is installed in the torsion spring slot 11 above the wire clamp frame 1, the torsion spring 6 is in contact with one end of the conductive spring clip 7, and the other end of the conductive spring clip 7 is in contact with the tension clamp, and a spring clip supporting device is provided in the torsion spring slot 11, the conductive spring clip 7 is installed above the wire clamp frame 1 through the spring clip supporting device, and the conductive spring clip 7 is rotatably connected to the spring clip supporting device; the torsion spring 6 and the tension clamp 9 are respectively located on both sides of the spring clip supporting device, the torsion spring 6 is located below one end of the conductive spring clip 7, and the tension clamp 9 is located below the other end of the conductive spring clip 7; when in use, by pressing down one end of the conductive spring clip 7, the torsion spring 6 and the conductive spring clip 7 are compressed. It rotates around the spring support device to facilitate the placement of the tension clamp 9 under the other end of the conductive spring clip 7; when it is necessary to eliminate the potential difference between the wire core and the tension clamp 9, one end of the conductive spring clip 7 is no longer pressed down, and under the elastic force of the torsion spring 6, one end of the conductive spring clip 7 is tilted upward under the action of the torsion spring 6, and the other end of the conductive spring clip 7 is pressed downward to achieve close contact between the conductive spring clip 7 and the tension clamp 9. During the entire process of eliminating the potential difference between the wire core and the tension clamp 9, the corresponding pressure is maintained between the conductive spring clip 7 and the tension clamp 9 to avoid the conductive spring clip 7 and the tension clamp 9 from being offset. The torsion spring 6 ensures that the conductive spring clip 7 is always in contact with the tension clamp, and the internal and external voltages are equal, so no local discharge occurs.

[0033] The spring support device includes a pin hole 12, which is located on both side walls of the torsion spring slot 11. A pin is inserted into the pin hole 12, and the pin passes through the conductive spring 7 in the torsion spring slot 11. The conductive spring 7 can rotate around the pin.

[0034] The structure of the described tension wire clamp and other potential devices also includes a limit slot 4, which is located on the wire clamp frame 1; during actual work, when it is necessary to rotate the bolt 2 by a manipulator, the manipulator arm for live work is buckled on the limit slot 4 to ensure that the manipulator can always be stable and not move when rotating the bolt 2. During the process of the manipulator rotating the bolt 2 on the manipulator arm pushing the slider 3 to move toward the middle, the wire is adjusted to the center position of the threading slot 8 and is pierced by the piercer 5.

[0035] The present invention designs a potential device equivalent to a tension clamp as a special short-circuiting device based on the specifications, shape, structure and installation position of conventional tension clamps. The present invention uses the puncture principle to directly cut into the insulation layer of the wire and directly contact the wire core. The puncture is connected to the tension clamp through the clamp frame 1, thereby eliminating the potential difference between the wire core and the tension clamp, and achieving the purpose of terminating and eliminating the discharge fault of the tension clamp.

[0036] By further designing the limit slot 4, when it is necessary to rotate the bolt 2 by the manipulator to perform work, the manipulator arm for live working is buckled on the limit slot 4 to ensure that the manipulator can always be stable and not move when rotating the bolt 2. The manipulator on the manipulator arm rotates the bolt 2 to push the slider 3 to move to the middle, and the wire is adjusted to the center position of the threading slot 8 to be pierced by the puncture 5. The corresponding live working robot only needs to control the bolt 2 through the manipulator arm to perform the operation; the manual operation only needs to control the robot to position it to the discharge position, and the robot can handle the discharge failure problem of the tension clamp by controlling the bolt 2, thereby reducing personal safety risks and improving work efficiency.

Claims

1. A tension clamp equipotential device, characterized in that The invention comprises a wire clamp frame (1), a bolt (2), a slider (3), a limiting groove (4), and a puncture (5); wherein, a wire clamp frame (1) is provided with a wire threading groove (8), the bolt (2) and the puncture (5) are respectively located on the side walls of the wire threading groove (8), one end of the bolt (2) passes through one side wall of the wire threading groove (8) and extends into the wire threading groove (8), the end of the bolt (2) extending into the wire threading groove (8) is fixedly connected to the slider (3), and the slider (3) and the puncture (5) are placed opposite to each other; the wire clamp frame (1) is connected to the tension wire clamp (9) through a conductive connecting device; the limiting groove (4) is located on the wire clamp frame (1); the conductive connecting device comprises a torsion spring (6), a conductive spring (7); a torsion spring slot (11) is provided above the clamp frame (1); the torsion spring (6) is installed in the torsion spring slot (11) above the clamp frame (1); the torsion spring (6) is in contact with one end of the conductive spring sheet (7); the other end of the conductive spring sheet (7) is in contact with the tension clamp (9); a spring support device is provided in the torsion spring slot (11); the conductive spring sheet (7) is installed above the clamp frame (1) through the spring support device; the conductive spring sheet (7) is rotatably connected to the spring support device; the torsion spring (6) and the tension clamp (9) are respectively located on both sides of the spring support device; the torsion spring (6) is located below one end of the conductive spring sheet (7); and the tension clamp (9) is located below the other end of the conductive spring sheet (7).

2. A tension clamp equipotential device according to claim 1, characterized in that The bolt (2) is a hexagonal bolt; the puncture (5) and the wire clamp frame (1) are both made of conductive materials.

3. A tension clamp equipotential device according to claim 1, characterized in that The threading slot (8) on the wire clamp frame (1) includes a left side wall (8-1) and a right side wall (8-2), and a first threaded hole (8-3) is provided on the right side wall (8-2), wherein the internal thread in the first threaded hole (8-3) matches the external thread on the bolt (2), and the threaded end of the bolt (2) is fixedly connected to the slider (3) after passing through the right side wall (8-2); the inner side of the left side wall (8-1) is fixedly connected to the puncture (5); when in use, the threading slot (8) of the wire clamp frame (1) is used to pass the wire (10), and the depth of the bolt (2) passing through the right side wall (8-2) and inserted into the threading slot (8) is controlled by rotating the bolt (2), thereby controlling the size of the gap between the slider (3) and the puncture (5), so that the slider (3) and the puncture (5) can clamp or loosen the wire.

4. A tension clamp equipotential device according to claim 1, characterized in that One end of the slider (3) is fixedly connected to the bolt (2), and the other end of the slider (3) faces the puncture (5). The end of the slider (3) facing the puncture (5) has a groove (3-1); the size of the groove (3-1) matches the cross-sectional size of the wire (10) to be clamped; when in use, when the slider (3) and the puncture (5) are required to clamp the wire (10), the inner surface of the groove (3-1) is just clamped with the outer surface of the wire (10).

5. A tension clamp equipotential device according to claim 1, characterized in that The slider (3) has a threaded column (3-2) on one end facing the bolt (2), and a second threaded hole (2-1) is provided on one side of the bolt (2) facing the slider (3). The external thread on the side of the threaded column (3-2) matches the internal thread of the second threaded hole (2-1); the slider (3) and the bolt (2) are fixedly connected by screwing the threaded column (3-2) into the second threaded hole (2-1).

6. A tension clamp equipotential device according to claim 4, characterized in that The groove (3-1) is a V-shaped groove. When the slider (3) and the puncture (5) are required to clamp the wire (10), the wire (10) is clamped into the V-shaped groove.

7. The potential equivalence device for a tension clamp according to claim 1, characterized in that The puncture (5) has a plurality of teeth (5-1) distributed at one end of the slider (3), each of which is in the shape of a needle. The length of the teeth on both sides of the puncture (5) is greater than the length of the tooth in the middle. The ends of the tips of all the teeth form a concave surface as a whole, and the shape of the concave surface matches the cross section of the wire to be clamped.

8. The tension clamp equipotential device according to claim 1, characterized in that The spring support device includes a pin hole (12), the pin hole (12) is located on both side walls of the torsion spring slot (11), a pin is inserted into the pin hole (12), the pin passes through the conductive spring (7) in the torsion spring slot (11), and the conductive spring (7) can rotate around the pin.

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