Wire clamping device for overhead power wire

Abstract

The utility model relates to the technical field of wire clamping devices for overhead power wires, and provides a wire clamping device for overhead power wires, which comprises a first clamping plate, a second clamping plate, an upper pressing plate, a clamping spring, an adjusting seat and a rod body seat, the free end of the first clamping plate extends outwards to be fixedly provided with an adjusting seat, the adjusting seat is provided with an arc-shaped through hole, the outer side of the arc-shaped through hole is provided with a rod body inlet and outlet, the left end of the adjusting seat is provided with a first groove, the free end of the second clamping plate extends outwards to be provided with a rod body seat, the rod body seat is hinged to a second rod body, and the right end of the rod body seat is provided with a second groove. The second rod body enters the arc-shaped through hole from the rod body inlet and outlet, the left end of the clamping spring is placed in the first groove, and the right end of the clamping spring is placed in the second groove. The porcelain insulator clamping device has the advantages that the size of the clamping opening defined by the first clamping plate and the second clamping plate is continuously adjusted, the first clamping plate and the second clamping plate can clamp a porcelain insulator, the first clamping plate and the second clamping plate can be locked, and the adjusting precision of the clamping opening is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead power line installation, in particular to a wire clamp for an overhead power conductor. Background Art

[0002] Porcelain insulators are commonly used to secure power conductors. Installed at the top of utility poles, they allow overhead power conductors to be replaced with high-voltage wires. The conductors are placed snugly against the porcelain insulator's cable tray and typically secured to the insulator using a tying wire. However, this method is inefficient and can become loose or even detach over time. Furthermore, the tying wires are typically wrapped directly around the conductor sheath, which can damage the conductor. As an alternative, wire clamps are now available for use with porcelain insulators to secure power conductors.

[0003] The invention patent document with publication number CN115566617A discloses a wire fixing clamp, including an upper pressure plate, a first clamping plate and a second clamping plate, one end of the first clamping plate is hinged to one end of the second clamping plate, and the first clamping plate and the second clamping plate can be rotated to open and close; one end of the upper pressure plate is hinged to a first rod body, the free end of the first rod body is vertically arranged at the hinge of the first clamping plate and the second clamping plate, the upper pressure plate can rotate back and forth relative to the first clamping plate and the second clamping plate, and the other end of the upper pressure plate is provided with a clamping portion; the free end of the first clamping plate is provided with an adjustment slot, the free end of the second clamping plate is hinged to a second rod body that cooperates with the adjustment slot, and the free end of the second rod body is provided with a clamping piece that cooperates with the clamping portion. An adjustment seat extends from the free end of the first clamping plate, which is equipped with multiple adjustment slots. A rod seat extends from the free end of the second clamping plate, which is hingedly connected to the second rod. When the first and second clamping plates rotate relative to each other until the adjustment slots face the second rod, the second rod can rotate into the adjustment slots. This allows the clamp's clamping diameter to be adjusted according to the diameter of the porcelain insulator, ensuring a tight fit.

[0004] The technical solution of this patent document has the following disadvantages: when the second rod body enters the adjustment slot at different positions, although the size of the clamping opening surrounded by the first clamping plate and the second clamping plate can be adjusted, this is an intermittent adjustment method with low adjustment accuracy; there are porcelain insulators of different sizes on the market, and it is easy for the second rod body to be unable to align with the adjustment slot when the first clamping plate and the second clamping plate first clamp the porcelain insulator, and the second rod body cannot enter the adjustment slot, thereby failing to lock the first clamping plate and the second clamping plate; or although the second rod body can enter the adjustment slot, thereby locking the first clamping plate and the second clamping plate, the clamping opening surrounded by the first clamping plate and the second clamping plate is too large, and the porcelain insulator cannot be clamped, resulting in looseness.

[0005] Therefore, how to continuously adjust the size of the clamping opening surrounded by the first clamping plate and the second clamping plate so that the first clamping plate and the second clamping plate can clamp the porcelain insulator and lock the first clamping plate and the second clamping plate to improve the adjustment accuracy of the clamping opening is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0006] The technical problem to be solved by the present utility model is to provide a wire clamp for an overhead power conductor, which continuously adjusts the size of a clamping opening surrounded by a first clamping plate and a second clamping plate, so that the first clamping plate and the second clamping plate can clamp the porcelain insulator and lock the first clamping plate and the second clamping plate, thereby improving the adjustment accuracy of the clamping opening.

[0007] The utility model is implemented as follows: a wire clamp for an overhead power line, comprising a first clamping plate, a second clamping plate and an upper pressure plate, one end of the first clamping plate is hinged to one end of the second clamping plate, the first clamping plate and the second clamping plate can rotate to open and close, one end of the upper pressure plate is hinged to a first rod body, the free end of the first rod body is perpendicularly arranged at the hinge of the first clamping plate and the second clamping plate, the upper pressure plate can reciprocate relative to the first clamping plate and the second clamping plate, the other end of the upper pressure plate is provided with a clamping portion, and further comprises a clamping spring, an adjustment seat and a rod body seat;

[0008] The free end of the first clamping plate extends outward and is fixedly provided with the adjustment seat, the adjustment seat has an arc-shaped through hole, and a rod body entrance and exit is opened on the outside of the arc-shaped through hole, the left end of the adjustment seat has a first groove, the free end of the second clamping plate extends outward and is provided with the rod body seat, the rod body seat is hinged with the second rod body, the free end of the second rod body is provided with a clamping piece that cooperates with the clamping part, the right end of the rod body seat has a second groove, the second rod body enters the arc-shaped through hole from the rod body entrance and exit, the second rod body is slidably connected to the arc-shaped through hole, the left end of the retaining spring is placed in the first groove, and the right end of the retaining spring is placed in the second groove.

[0009] Furthermore, it also includes elastic corner blocks, and the corner ends of the two elastic corner blocks are arranged opposite to each other and are fixedly arranged on the left side and the right side of the rod body entrance and exit respectively.

[0010] Furthermore, the upper pressing plate is flat, the clamping portion is a slot, the clamping piece is a nut, the free end of the second rod enters the slot, and the nut is connected to the free end of the second rod via a threaded connection.

[0011] Furthermore, the lower surface of the free end of the first clamping plate has an arc-shaped sliding groove, and the upper surface of the free end of the second clamping plate has a protrusion. When the first clamping plate and the second clamping plate are closed, the protrusion is slidably connected to the arc-shaped sliding groove.

[0012] Furthermore, a buffer block is included, which is fixedly arranged on the upper pressure plate and is used to press the power wire.

[0013] Furthermore, the retaining spring is replaced with a throat clamp, and the adjustment seat and the rod body seat are connected through the throat clamp.

[0014] Furthermore, it also includes a bird repeller, which is fixedly arranged on the upper pressure plate.

[0015] Compared with the background technology, the beneficial effects of the present invention are as follows: the staff first surrounds the porcelain insulator with the first clamp and the second clamp, and the second rod body enters the arc-shaped through hole from the rod body entrance and exit, and then during the process of closing the first clamp and the second clamp, the second rod body continuously slides in the arc-shaped through hole, thereby continuously adjusting the size of the clamping opening surrounded by the first clamp and the second clamp; after the first clamp and the second clamp clamp the porcelain insulator, the adjustment seat and the rod body seat are connected with a retaining spring to lock the first clamp and the second clamp, and the first groove and the second groove serve to limit the position of the retaining spring; the adjustment accuracy of the clamping opening is improved, the operation is convenient, and looseness between the first clamp, the second clamp and the porcelain insulator is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 The utility model is a schematic three-dimensional diagram of the structure of the overhead power conductor clamp.

[0018] Figure 2 This is a diagram showing the use status of the overhead power conductor clamp of the utility model.

[0019] Figure 3 This is a schematic diagram of the position of the elastic corner block at the entrance and exit of the rod body in an embodiment of the utility model.

[0020] Figure 4 It is a connection diagram of the clamping spring, the adjustment seat and the rod body seat in the embodiment of the utility model.

[0021] Figure 5 It is a schematic diagram of the connection between the throat clamp, the adjustment seat and the rod body seat in the embodiment of the utility model.

[0022] Figure numerals: first clamping plate 1; adjustment seat 11; first groove 111; arc-shaped through hole 12; rod body entrance and exit 13; elastic corner block 131; arc-shaped slide groove 14; second clamping plate 2; rod body seat 21; second groove 211; protrusion 22; upper pressure plate 3; clamping portion 31; buffer block 32; first rod body 4; second rod body 5; clamping member 51; retaining spring 6; throat clamp 7; rotating portion 71; strip portion 72; power conductor 8; porcelain insulator 9. DETAILED DESCRIPTION

[0023] The embodiment of the present utility model provides a wire clamp for an overhead power conductor, which overcomes the problem in the background technology that when the second rod body of the wire fixing clamp enters the adjustment slot at different positions, although the size of the clamping opening surrounded by the first clamping plate and the second clamping plate can be adjusted, this is an intermittent adjustment method with low adjustment accuracy; it realizes continuous adjustment of the size of the clamping opening surrounded by the first clamping plate and the second clamping plate, which can not only make the first clamping plate and the second clamping plate clamp the porcelain insulator, but also lock the first clamping plate and the second clamping plate, thereby improving the adjustment accuracy of the clamping opening, convenient operation, and effectively avoiding the technical effect of loosening between the first clamping plate, the second clamping plate and the porcelain insulator.

[0024] The overall idea of ​​the technical solution of the embodiment of the utility model is as follows:

[0025] The wire fixing clamp of the background technology is improved by eliminating the adjustment slot structure; an arc-shaped through hole is selected to be opened in the adjustment seat, and a rod entrance and exit is opened on the outside of the arc-shaped through hole. During the operation of closing the first clamp and the second clamp to surround the porcelain insulator, the second rod enters the arc-shaped through hole from the rod entrance and exit, and the second rod slides continuously in the arc-shaped through hole until the first clamp and the second clamp clamp the porcelain insulator, and then a retaining spring is used to connect the adjustment seat and the rod seat, locking the first clamp and the second clamp, and finally the upper pressure plate is pressed against the power conductor at the top of the porcelain insulator, and the free end of the second rod is connected to the clamping part of the upper pressure plate through a clamping piece.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] See Figures 1 to 5 , a preferred embodiment of the present utility model.

[0028] A wire clamp for an overhead power line, comprising a first clamping plate 1, a second clamping plate 2, and an upper pressure plate 3. One end of the first clamping plate 1 is hinged to one end of the second clamping plate 2, and the first clamping plate 1 and the second clamping plate 2 can rotate to open and close. One end of the upper pressure plate 3 is hinged to a first rod 4, and the free end of the first rod 4 is perpendicularly arranged at the hinge of the first clamping plate 1 and the second clamping plate 2. The upper pressure plate 3 can reciprocate relative to the first clamping plate 1 and the second clamping plate 2. The other end of the upper pressure plate 3 is provided with a clamping portion 31, and further comprises a clamping spring 6, an adjustment seat 11, and a rod body seat 21.

[0029] The free end of the first splint 1 extends outward and is fixedly provided with the adjustment seat 11, the adjustment seat 11 has an arc-shaped through hole 12, and a rod body entrance and exit 13 is opened on the outside of the arc-shaped through hole 12. The left end of the adjustment seat 11 has a first groove 111, and the free end of the second splint 2 extends outward and is provided with the rod body seat 21, and the rod body seat 21 is hinged with the second rod body 5, and the free end of the second rod body 5 is provided with a clamping piece 51 that cooperates with the clamping portion 31, and the right end of the rod body seat 21 has a second groove 211, and the second rod body 5 enters the arc-shaped through hole 12 from the rod body entrance and exit 13, and the second rod body 5 is slidably connected to the arc-shaped through hole 12, and the left end of the retaining spring 6 is placed in the first groove 111, and the right end of the retaining spring 6 is placed in the second groove 211.

[0030] Compared with the background technology, the beneficial effects of the present invention are as follows: the staff first surrounds the porcelain insulator 9 with the first clamping plate 1 and the second clamping plate 2, and the second rod body 5 enters the arc-shaped through hole 12 from the rod body entrance and exit 13, and then during the closing process of the first clamping plate 1 and the second clamping plate 2, the second rod body 5 continuously slides in the arc-shaped through hole 12, thereby continuously adjusting the size of the clamping opening surrounded by the first clamping plate 1 and the second clamping plate 2; after the first clamping plate 1 and the second clamping plate 2 clamp the porcelain insulator 9, the retaining spring 6 is used to connect the adjustment seat 11 and the rod body seat 21 to lock the first clamping plate 1 and the second clamping plate 2, and the first groove 111 and the second groove 211 play the role of limiting the position of the retaining spring 6; the adjustment accuracy of the clamping opening is improved, the operation is convenient, and looseness between the first clamping plate 1, the second clamping plate 2 and the porcelain insulator 9 is effectively avoided.

[0031] The two ends of the clamping spring 6 are respectively placed in the first groove 111 and the second groove 211 , which helps to prevent the clamping spring 6 from sliding away from the adjustment seat 11 and the rod body seat 21 in the front-back direction.

[0032] The device further includes elastic corner blocks 131, with the corner ends of the two elastic corner blocks 131 facing each other and fixedly mounted on the left and right sides of the rod entrance 13, respectively. This technical solution has the beneficial effect that when a worker operates the second rod 5 to pass through the rod entrance 13 and move it to the arcuate through-hole 12, the worker applies a push-pull force to the second rod 5, causing the second rod 5 to contact the elastic corner blocks 131, causing the elastic corner blocks 131 to deform, allowing the second rod 5 to move smoothly through the rod entrance 13. After the second rod 5 leaves the rod entrance 13, the elastic corner blocks 131 return to their original shape. When the second rod 5 is not subjected to a push-pull force applied by the worker, the elastic corner blocks 131 in their original shape effectively prevent the second rod 5 from escaping the arcuate through-hole 12. The elastic corner blocks 131 may be rubber blocks.

[0033] The upper pressing plate 3 is flat, the clamping portion 31 is a slot, and the clamping member 51 is a nut. The free end of the second rod 5 enters the slot, and the nut is threadedly connected to the free end of the second rod 5. This technical solution has the beneficial effect of locking the nut on the free end of the second rod 5 and tightly contacting the upper pressing plate 3, pressing the upper pressing plate 3 against the power conductor 8, making operation convenient.

[0034] The lower surface of the free end of the first clamping plate 1 has an arcuate slot 14, and the upper surface of the free end of the second clamping plate 2 has a protrusion 22. When the first clamping plate 1 and the second clamping plate 2 are closed, the protrusion 22 slides in connection with the arcuate slot 14. The beneficial effect of this technical solution is that the cooperation between the protrusion 22 and the arcuate slot 14 ensures that the first clamping plate 1 and the second clamping plate 2 are in stable rotation during the process of opening or closing the first clamping plate 1 and the second clamping plate 2.

[0035] The upper platen 3 also includes a buffer block 32, which is fixed to the upper platen 3 and is used to press the power conductor 8. This technical solution has the beneficial effect of the arc-shaped contact surface between the buffer block 32 and the power conductor 8, thereby improving the compression effect of the upper platen 3 on the power conductor 8. The buffer block 32 is a rubber block.

[0036] The clamping spring 6 is replaced with a throat clamp 7, and the adjustment seat 11 and the rod body seat 21 are connected via the throat clamp 7. The beneficial effect of this technical solution is that the throat clamp 7 has a rotating portion 71 and a belt portion 72, the rotating portion 71 is mounted on the adjustment seat 11, one end of the belt portion 72 is mounted on the rod body seat 21, and the other end of the belt portion 72 passes through the rotating portion 71. The knob of the rotating portion 71 is operated to pull the belt portion 72, thereby locking the adjustment seat 11 and the rod body seat 21.

[0037] The device also includes a bird repellent (not shown), which is fixed to the upper platen. This technical solution effectively prevents birds from resting on the upper platen, preventing bird droppings from contaminating the device. The bird repellent comprises multiple spiral wires fixed to the upper platen. For more information on the bird repellent, please refer to the utility model patent document, "A Bird-Repellent Stand Easily Disassembled," published under Publication No. CN218736814U.

[0038] The working method of the present invention is as follows: the porcelain insulator 9 is pre-installed on the top of the electric pole, the power conductor 8 is placed in the top wire groove of the porcelain insulator 9, the free ends of the first splint 1 and the second splint 2 of the present invention are opened, the first splint 1 and the second splint 2 surround the porcelain insulator 9, and then the second rod body 5 is operated to enter the arc-shaped through hole 12 from the rod body entrance and exit 13, and then the first splint 1 and the second splint 2 are closed, and the second rod body 5 slides continuously in the arc-shaped through hole 12, thereby continuously adjusting the size of the clamping opening surrounded by the first splint 1 and the second splint 2. After the first splint 1 and the second splint 2 clamp the porcelain insulator 9, the adjusting seat 11 and the rod body seat 21 are connected with the retaining spring 6 or the throat clamp 7 to lock the first splint 1 and the second splint 2. Finally, the upper pressing plate 3 is pressed against the power conductor 8 located at the top of the porcelain insulator 9, and the free end of the second rod body 5 is connected to the clamping part 31 of the upper pressing plate 3 through the clamping piece 51.

[0039] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A wire clamp for an overhead power line, comprising a first clamping plate, a second clamping plate, and an upper pressure plate, wherein one end of the first clamping plate is hinged to one end of the second clamping plate, the first clamping plate and the second clamping plate being capable of rotating to open and close, one end of the upper pressure plate being hinged to a first rod, the free end of the first rod being perpendicularly disposed at the hinged joint between the first clamping plate and the second clamping plate, the upper pressure plate being capable of reciprocating relative to the first clamping plate and the second clamping plate, and the other end of the upper pressure plate being provided with a clamping portion, characterized in that: It also includes a circlip, an adjustment seat and a rod seat; The free end of the first clamping plate extends outward and is fixedly provided with the adjustment seat, the adjustment seat has an arc-shaped through hole, and a rod body entrance and exit is opened on the outside of the arc-shaped through hole, the left end of the adjustment seat has a first groove, the free end of the second clamping plate extends outward and is provided with the rod body seat, the rod body seat is hinged with the second rod body, the free end of the second rod body is provided with a clamping piece that cooperates with the clamping part, the right end of the rod body seat has a second groove, the second rod body enters the arc-shaped through hole from the rod body entrance and exit, the second rod body is slidably connected to the arc-shaped through hole, the left end of the retaining spring is placed in the first groove, and the right end of the retaining spring is placed in the second groove.

2. The overhead power conductor clamp according to claim 1, characterized in that: It also includes elastic corner blocks, wherein the corner ends of the two elastic corner blocks are arranged opposite to each other and are fixedly arranged on the left side and the right side of the rod body entrance and exit respectively.

3. The overhead power conductor clamp according to claim 1, characterized in that: The upper pressing plate is in a flat plate shape, the clamping portion is a clamping groove, the clamping piece is a nut, the free end of the second rod body enters the clamping groove, and the nut is connected to the free end of the second rod body through a threaded connection.

4. The overhead power conductor clamp according to claim 1, characterized in that: The lower surface of the free end of the first clamping plate has an arc-shaped sliding groove, and the upper surface of the free end of the second clamping plate has a protrusion. When the first clamping plate and the second clamping plate are closed, the protrusion is slidably connected to the arc-shaped sliding groove.

5. The overhead power conductor clamp according to claim 1, characterized in that: It also includes a buffer block, which is fixedly arranged on the upper pressing plate and is used to press the power conductor.

6. The overhead power conductor clamp according to claim 1, characterized in that: The clamping spring is replaced with a throat clamp, and the adjusting seat is connected to the rod body seat through the throat clamp.

7. The overhead power conductor clamp according to claim 1, characterized in that: It also includes a bird repeller, which is fixedly arranged on the upper pressure plate.

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