Rotary wire clamp and spacer

Abstract

The utility model discloses a rotary wire clamp which comprises a supporting body, a clamping body used for clamping a power transmission conductor and a connecting piece arranged between the supporting body and the clamping body, the clamping body is rotatably installed on the connecting piece, the clamping body is provided with at least two elastic blocking pieces which can abut against the connecting piece when the clamping body rotates, and the elastic blocking pieces can abut against the connecting piece when the clamping body rotates. The clamping body is provided with at least two elastic blocking pieces which can abut against the connecting piece when the clamping body rotates, on one hand, the two elastic blocking pieces can limit free rotation of the wire clamp within a certain angle range, and on the other hand, the two elastic blocking pieces can limit the moving stroke of the clamping body; on one hand, the elastic blocking piece can prevent the wire clamp from swinging excessively under the action of wind or other external force, so that the stability and safety of the power transmission wire are kept, on the other hand, the elastic blocking piece can reduce the impact force of collision between the clamping body and the connecting piece during rotation, the damage risk of the wire clamp can be reduced, and the service life of the wire clamp can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission, in particular to a rotary wire clamp and a spacer rod. Background Art

[0002] The split spacer is an anti-dancing device for overhead transmission lines and has been widely used in domestic lines. The split spacer is equipped with a fixed wire clamp and a rotary wire clamp symmetrical with the central axis. The rotary wire clamp is set on the windward side of the line. The wire clamp is provided with a clamping hole for clamping the wire. The center line of the clamping hole is used as the axis to enable the wire clamped therein to vibrate and rotate within a certain angle range, thereby offsetting the impact of the wire dancing on the line.

[0003] A Chinese utility model patent with application number CN201620101605.4 discloses a spacer rod rotary wire clamp, including a wire clamp head, a connector and a wire clamp seat. A slide groove is provided on the wire clamp head, and the connector head is connected to the slide groove so that the wire clamp head can rotate within the range of the slide groove. The connector is arranged on the wire clamp seat through a fixing member. When the wire clamp rotates on the connector, the connector will collide with both ends of the slide groove. After long-term use, it is easy to cause damage to the clamp head and the connector structure, thereby affecting the service life of the wire clamp. Utility Model Content

[0004] The utility model aims to provide a rotary wire clamp so as to improve the service life of the rotary wire clamp.

[0005] The utility model is realized through the following technical solutions.

[0006] A rotary wire clamp comprises a support body, a clamping body for clamping a power transmission line, and a connecting piece arranged between the support body and the clamping body, wherein the clamping body is rotatably mounted on the connecting piece, and the clamping body is provided with at least two elastic blocking pieces which can abut against the connecting piece when the clamping body rotates, and the two elastic blocking pieces can limit the moving stroke of the clamping body.

[0007] As a further improvement of the present invention, a limit assembly is provided at one end of the connecting member close to the clamping body, and the limit assembly includes two limit parts arranged at intervals, and a limited space is formed between the two limit parts. The ends of the two limit members away from the support body are bent inward to form a sliding part, and two arc-shaped grooves are provided on the clamping body corresponding to the two sliding parts. The sliding parts are embedded in the arc-shaped grooves, and the clamping body is clamped in the limit space so that the clamping body cannot be separated from the limit assembly, and two elastic blocking members are provided on each of the arc-shaped grooves.

[0008] As a further improvement of the utility model, the two elastic blocking members are respectively arranged at the two ends of the arc-shaped slide groove, one end of the elastic blocking member away from the connecting member is fixed on the arc-shaped slide groove, and the other end extends along the arc-shaped slide groove toward the limiting assembly, and the shape of the elastic blocking member matches the shape of the arc-shaped slide groove.

[0009] As a further improvement of the present invention, the arc angle of the arc-shaped slide groove is 120°~150°.

[0010] As a further improvement of the present invention, at least one of the limiting portions is detachably connected to the connecting member.

[0011] As a further improvement of the utility model, the clamping body includes a first clamping part and a second clamping part, and the first clamping part and the second clamping part can be connected in an opening and closing manner, the arc-shaped slide groove is arranged on the first clamping part, and the relative wall surfaces of the first clamping part and the second clamping part are respectively recessed inward to form a channel for the transmission wire to pass through.

[0012] As a further improvement of the present invention, the first clamping portion and the second clamping portion are detachably connected.

[0013] As a further improvement of the present invention, protective pads are provided on the inner sides of the first clamping portion and the second clamping portion.

[0014] As a further improvement of the utility model, the elastic blocking member is made of rubber.

[0015] The utility model also provides a spacer rod, comprising an annular mounting frame and a plurality of the swivel wire clamps in the above technical solution, wherein the plurality of swivel wire clamps are evenly spaced and arranged on the annular mounting frame along the circumference of the annular mounting frame.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a swivel wire clamp, by arranging at least two elastic blocking members on the clamping body which can contact with the connecting member when the clamping body rotates. On the one hand, the two elastic blocking members can limit the free rotation of the wire clamp within a certain angle range, and prevent the wire clamp from excessively swinging under the action of wind or other external forces, thereby maintaining the stability and safety of the power transmission line. On the other hand, it can reduce the impact force when the clamping body collides with the connecting member during the rotation process, thereby reducing the risk of damage to the wire clamp and extending the service life of the wire clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a detailed description of the preferred implementation examples of the present invention with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0019] Figure 1 Structural schematic diagram of a rotary wire clamp of the present utility model;

[0020] Figure 2 Connection structure diagram of the limit component and the clamping body in the present utility model;

[0021] Figure 3 Structural schematic diagram of a spacer of the present utility model;

[0022] In the figure:

[0023] 1. Support body; 2. Clamping body; 21. Arc-shaped sliding groove; 22. First clamping part; 23.

[0024] Second clamping part; 24. Buffer pad; 3. Connecting piece; 4. Elastic blocking piece; 5. Limit component; 51. Limiting part; 52. Sliding part; 6. Ring-shaped mounting bracket Specific implementation manner

[0025] The present utility model will be further described in detail below with reference to the drawings and embodiments.

[0026] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined with respect to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0027] Embodiment 1:

[0028] This embodiment provides a rotary wire clamp. Referring to Figures 1 to 3 , it includes a support body 1, a clamping body 2 for clamping a transmission wire, and a connecting piece 3 disposed between the support body 1 and the clamping body 2. The support body 1 is installed on the spacer. One end of the connecting piece 3 is fixedly connected to the support body 1, and the other end is rotatably matched with the clamping body 2. The clamping body 2 can rotate relative to the connecting piece 3. At least two elastic blocking pieces 4 that can contact the connecting piece 3 when the clamping body 2 rotates are provided on the clamping body 2, and the two elastic blocking pieces 4 can limit the moving stroke of the clamping body 2. On the one hand, the elastic blocking pieces 4 can limit the free rotation of the wire clamp within a certain angle range, prevent the wire clamp from swinging excessively under the action of wind or other external forces, thereby maintaining the stability and safety of the transmission wire. On the other hand, the elastic blocking pieces 4 have a certain elastic force, which can reduce the impact force when the clamping body 2 collides with the connecting piece 3 during rotation, thereby reducing the risk of damage to the wire clamp and extending the service life of the wire clamp.

[0029] Specifically, a limiting component 5 is provided at one end of the connecting piece 3 close to the clamping body 2. The limiting component 5 includes two relatively spaced limiting parts 51. One end of each limiting part 51 is connected to the connecting piece 3. A limiting space is formed between the two limiting parts 51. The ends of the two limiting parts away from the support body 1 are bent inward to form sliding parts 52. At the same time, two arc-shaped sliding grooves 21 are provided on the clamping body 2 corresponding to the two sliding parts 52. The sliding parts 52 are in sliding fit with the sliding grooves. The sliding parts 52 are embedded in the arc-shaped sliding grooves 21. And the outer edge of the clamping body 2 close to the connecting piece 3 is clamped in the limiting space so that the clamping body 2 cannot be separated from the limiting component 5. When the wire clamp is affected by external forces such as wind and ice, the sliding parts 52 can slide on the wire clamp, enabling the clamping body 2 to rotate relative to the connecting piece 3 within the range of the arc-shaped sliding grooves 21. The clamping body 2 cannot be separated from the connecting piece 3 under the action of the limiting component 5 either, and the structure is stable. At the same time, at least one limiting part 51 is detachably connected to the connecting piece 3, which facilitates the disassembly, assembly and maintenance of the clamping body 2.

[0030] Further, two elastic blocking parts 4 are provided in each arc-shaped sliding groove 21, and the two elastic blocking parts 4 are respectively arranged at both ends of the arc-shaped sliding groove 21. The end of the elastic blocking part 4 away from the connecting piece 3 is fixed on the arc-shaped sliding groove 21, and the other end extends towards the limiting component 5 along the extending direction of the arc-shaped sliding groove 21. And the shape of the elastic blocking part 4 matches the shape of the arc-shaped sliding groove 21. When the clamping body 2 rotates relative to the connecting piece 3 under the action of external force, the elastic blocking part 4 will be impacted by the sliding part 52, and it can absorb and buffer the impact force of the sliding part 52 on the clamping body 2, thereby reducing the damage risk of the wire clamp and helping to extend the service life of the wire clamp. In this embodiment, the elastic blocking part 4 is preferably made of rubber material. Rubber can effectively buffer and disperse the impact force when being impacted, and has good wear resistance and can be used for a long time.

[0031] In this embodiment, the radian of the arc-shaped sliding groove is 120° - 150°.

[0032] In this embodiment, the clamping body 2 includes a first clamping part 22 and a second clamping part 23. Among them, the first clamping part 22 is connected to the connecting piece 3, and the arc-shaped sliding groove 21 is arranged on the first clamping part 22. The first clamping part 22 and the second clamping part 23 are connected in an openable and closable manner. The opposite wall surfaces of the first clamping part 22 and the second clamping part 23 are respectively recessed inward to form a clamping channel for the transmission wire to pass through. In this embodiment, the first clamping body 2 and the second clamping body 2 can be connected by a rotating shaft to achieve free opening and closing.

[0033] Preferably, the first clamping part 22 and the second clamping part 23 can be set to be detachably connected. When the clamping body 2 fails after long-term use, it is convenient to replace the second clamping part 23.

[0034] Further, buffer pads 24 are provided on the inner sides of both the first clamping portion 22 and the second clamping portion 23. When the power transmission guide dances under the action of an external force, the buffer pads 24 can play a buffering role and reduce the impact of the external force on the power transmission wire. The buffer pads 24 are made of an elastic material, such as rubber.

[0035] Embodiment 2:

[0036] This embodiment provides a spacer dampener. Refer to Figure 3 , which includes an annular mounting frame 6 and a plurality of the rotary wire clamps in the above embodiment provided on the annular mounting frame 6. The rotary wire clamps are set to four and are evenly spaced along the circumferential direction of the annular mounting frame 6 on the annular mounting frame 6.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary wire clamp, characterized in that, The invention comprises a support body (1), a clamping body (2) for clamping a power transmission line, and a connecting member (3) arranged between the support body (1) and the clamping body (2), wherein the clamping body (2) is rotatably mounted on the connecting member (3), and the clamping body (2) is provided with at least two elastic blocking members (4) capable of abutting against the connecting member (3) when the clamping body (2) rotates, and the two elastic blocking members (4) are capable of limiting the movement stroke of the clamping body (2).

2. The rotary wire clamp according to claim 1, wherein A limiting assembly (5) is provided at one end of the connecting member (3) close to the clamping body (2), the limiting assembly (5) comprising two limiting portions (51) arranged at intervals, a limiting space being formed between the two limiting portions (51), one end of the two limiting portions (51) away from the supporting body (1) being bent inwardly to form a sliding portion (52), two inwardly recessed arcuate sliding grooves (21) are provided on the clamping body (2) corresponding to the two sliding portions (52), the sliding portions (52) are embedded in the arcuate sliding grooves (21), and the clamping body (2) is clamped in the limiting space so that the clamping body (2) cannot be separated from the limiting assembly (5), and two elastic blocking members (4) are provided in each of the arcuate sliding grooves (21).

3. The rotary wire clamp according to claim 2, wherein The two elastic blocking members (4) are respectively arranged at the two ends of the arc-shaped slide groove (21); one end of the elastic blocking member (4) away from the limiting assembly (5) is fixed to the arc-shaped slide groove (21); the other end extends toward the limiting assembly (5) along the extension direction of the arc-shaped slide groove (21); and the shape of the elastic blocking member (4) matches the shape of the arc-shaped slide groove (21).

4. The rotary wire clamp according to claim 3, wherein The arc angle of the arc-shaped slide groove (21) is 120° to 150°.

5. The rotary wire clamp according to claim 2, characterized in that, At least one of the limiting portions (51) is detachably connected to the connecting member (3).

6. The rotary wire clamp according to claim 2, wherein, The clamping body (2) comprises a first clamping portion (22) and a second clamping portion (23), and the first clamping portion (22) and the second clamping portion (23) are connected in an openable and closable manner, the arc-shaped slide groove (21) is arranged on the first clamping portion (22), and the wall surfaces opposite to each other of the first clamping portion (22) and the second clamping portion (23) are respectively recessed inwards to form a clamping channel for the transmission wire to pass through.

7. A rotary wire clamp according to claim 6, characterized in that, The first clamping portion (22) and the second clamping portion (23) are detachably connected.

8. The rotary wire clamp according to claim 6, wherein, Buffer pads (24) are provided on the inner sides of the first clamping portion (22) and the second clamping portion (23).

9. A rotary wire clamp according to any one of claims 1 to 8, characterized in that The elastic blocking member (4) is made of rubber.

10. A spacer, characterized in that, It comprises an annular mounting frame (6) and a plurality of swivel wire clamps according to any one of claims 1 to 9, wherein the plurality of swivel wire clamps are evenly spaced and arranged on the annular mounting frame (6) along the circumference of the annular mounting frame (6).

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