Anti-sliding damper for overhead transmission line

Abstract

The utility model provides an overhead transmission line anti-sliding vibration damper which comprises a damper handle, damper bodies are fixedly arranged at the two ends of the damper handle, a clamp is fixedly arranged in the middle of the damper handle, the clamp is provided with a connecting base fixedly arranged on the outer side of the damper handle, and a supporting plate is fixedly arranged on one side of the top of the connecting base. An upper clamping table is fixedly arranged at the top of the supporting plate, at least two lower clamping tables corresponding to the upper clamping table are slidably arranged on one side, below the upper clamping table, of the supporting plate, the bottoms of the lower clamping tables and the top of the connecting base are in threaded supporting mechanisms, and a baffle is hinged to the side, away from the supporting plate, of the connecting base. The top end of the baffle is detachably and fixedly connected with one side of the upper clamping table. According to the utility model, the upper clamping table and the at least two lower clamping tables are matched, clamped and fixed at the outer side of the power transmission cable, and compared with a fixing mode of clamping by a single cable clamp in the prior art, the contact area between the power transmission cable and the power transmission cable is larger, and the stability is better.

Description

Technical Field

[0001] This utility model belongs to the technical field of line vibration prevention facilities, specifically relating to an anti-slip vibration damper for overhead transmission lines. Background Technology

[0002] High-voltage overhead lines have high pole positions and long spans, making the conductors prone to vibration when subjected to wind. The working conditions at the conductor suspension point are most unfavorable during this vibration. Repeated vibrations can cause fatigue failure due to periodic bending of the conductor. When the span of an overhead line exceeds 120 meters, vibration dampers are generally used for vibration control.

[0003] In existing technologies, vibration dampers are usually fixed to the outside of the conductor by a single clamp. When the clamp loosens, the vibration damper will slip on the transmission line. This slippage will not only deviate from the designed position and reduce the vibration damping effect, but may also collide with insulator strings, equipotential rings or towers during the slippage, causing line faults.

[0004] Therefore, it is necessary to design an anti-slip vibration damper for overhead transmission lines to improve connection stability and prevent slippage of the damper, in order to solve the current technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-slip vibration damper for overhead transmission lines that improves connection stability and prevents slippage of the damper.

[0006] The technical solution of this utility model is as follows: an anti-slip and anti-vibration hammer for overhead transmission lines, including a hammer handle, hammer bodies fixedly installed at both ends of the hammer handle, a clamp fixedly installed in the middle of the hammer handle, the clamp having a connecting seat fixedly installed on the outside of the hammer handle, a support plate fixedly installed on one side of the top of the connecting seat, an upper clamping platform fixedly installed on the top of the support plate, at least two lower clamping platforms corresponding to the upper clamping platform slidably installed on one side of the support plate below the upper clamping platform, the bottom of the lower clamping platforms being threadedly supported by the top of the connecting seat, a baffle hinged to the side of the connecting seat away from the support plate, and the top of the baffle being detachably fixedly connected to one side of the upper clamping platform.

[0007] Furthermore, the threaded support mechanism has a screw rotatably disposed at the bottom of the lower clamping platform, and the top of the connecting seat is provided with a threaded tube threadedly fitted on the outside of the screw, and the outer thread of the screw is fitted with a locking nut that abuts against the top end of the threaded tube.

[0008] Furthermore, the upper end of the screw has a hexagonal prism, and the upper end of the hexagonal prism is rotatably connected to the bottom of the lower clamping platform.

[0009] Furthermore, a T-shaped groove corresponding to the lower clamping platform is formed vertically on the side of the support plate near the lower clamping platform, and a slider is fixedly provided on one side of the lower clamping platform, and the slider is slidably disposed inside the T-shaped groove.

[0010] Furthermore, the bottom of the upper clamping platform is provided with an upper clamping groove, and the top of the lower clamping platform is provided with a lower clamping groove.

[0011] Furthermore, both the upper and lower clamping grooves are V-shaped grooves with an included angle of 120°.

[0012] Furthermore, a pad is provided on both the upper and lower clamping grooves.

[0013] Furthermore, the top of the baffle is detachably and fixedly connected to one side of the upper clamping platform by fixing bolts.

[0014] The beneficial effects of this utility model are:

[0015] (1) In this utility model, the upper clamping platform and at least two lower clamping platforms cooperate to clamp and fix the outer side of the power transmission cable. Compared with the existing technology of clamping by a single clamp, the contact area between the upper clamping platform and the power transmission cable is larger and the stability is better. Furthermore, the threaded support mechanisms between the lower clamping platforms are independent of each other. When a single lower clamping platform is loose, it does not affect the clamping of other lower clamping platforms, resulting in better reliability.

[0016] (2) After the upper clamping platform and the lower clamping platform are clamped, the end of the upper clamping platform that is away from the support plate is fixedly connected to the connecting seat through the baffle. This can balance the tension at both ends of the upper clamping platform and prevent deformation between the upper clamping platform and the support plate, which would cause the clamp to loosen and affect the stability of the clamping. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anti-slip vibration damper for overhead transmission lines in this utility model.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle. Detailed Implementation

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0020] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figure 1 and 2 As shown, an anti-slip vibration hammer for overhead transmission lines includes a hammer handle 2, hammer bodies 3 fixedly mounted at both ends of the hammer handle 2, and a clamp 1 fixedly mounted in the middle of the hammer handle 2. The clamp 1 has a connecting seat 12 fixedly mounted on the outside of the hammer handle 2. A support plate 11 is fixedly mounted on one side of the top of the connecting seat 12, and an upper clamping platform 13 is fixedly mounted on the top of the support plate 11. At least two lower clamping platforms 14 corresponding to the upper clamping platform 13 are slidably mounted on one side of the support plate 11 below the upper clamping platform 13. The bottom of the lower clamping platforms 14 is threadedly supported by the top of the connecting seat 12. A baffle 18 is hinged to the side of the connecting seat 12 away from the support plate 11, and the top of the baffle 18 is detachably fixedly connected to one side of the upper clamping platform 13. In this embodiment, the upper clamping platform 13 and at least two lower clamping platforms 14 cooperate to clamp and fix the upper clamping platform 13 to the outside of the power transmission cable. Compared with the existing technology of clamping with a single clamp, the contact area between the upper clamping platform 13 and the power transmission cable is larger and the stability is better. Furthermore, the threaded support mechanisms between the lower clamping platforms 14 are independent of each other. When a single lower clamping platform 14 becomes loose, it does not affect the clamping of the other lower clamping platforms 14, resulting in better reliability. After the upper clamping platform 13 and the lower clamping platforms 14 are clamped, the end of the upper clamping platform 13 facing away from the support plate 11 is fixedly connected to the connecting seat 12 through the baffle 18. This can balance the tension at both ends of the upper clamping platform 13 and prevent deformation between the upper clamping platform 13 and the support plate 11, which would cause the clamp 1 to loosen and affect the stability of the clamping.

[0022] In some embodiments, the threaded support mechanism has a screw 16 rotatably disposed at the bottom of the lower clamping platform 14, and a threaded tube 15 threadedly fitted onto the outside of the screw 16 at the top of the connecting seat 12. A locking nut 17 is threaded onto the outside of the screw 16 and abuts against the top of the threaded tube 15. Rotating the screw 16 engages the threaded structure between the screw 16 and the threaded tube 15, which drives the lower clamping platform 14 to move upward and engage with the upper clamping platform 13, clamping and fixing it to the outside of the cable. After clamping, the locking nut 17 is screwed on so that it abuts against the top of the threaded tube 15, which can prevent the screw 16 and the threaded tube 15 from loosening and ensure the stability of the clamping.

[0023] In some embodiments, the upper end of the screw 16 has a hexagonal prism 161, the upper end of which is rotatably connected to the bottom of the lower clamping platform 14. The hexagonal prism 161 can be clamped with a wrench to facilitate the rotation of the screw 16.

[0024] In some embodiments, as a specific implementation of the lower clamping platform 14 slidingly disposed on one side of the support plate 11, a T-shaped groove 111 corresponding to the lower clamping platform 14 is formed in the vertical direction on the side of the support plate 11 near the lower clamping platform 14. A slider (not shown in the slider diagram) is fixedly disposed on one side of the lower clamping platform 14. The slider is slidably disposed inside the T-shaped groove 111. The slider is a T-shaped block structure that matches the inside of the T-shaped groove 111.

[0025] In some embodiments, the bottom of the upper clamping platform 13 is provided with an upper clamping groove 131, and the top of the lower clamping platform 14 is provided with a lower clamping groove 141. The upper clamping groove 131 and the lower clamping groove 141 are used to increase the contact area between the upper clamping platform 13, the lower clamping platform 14 and the cable.

[0026] In some embodiments, the upper clamping groove 133 and the lower clamping groove 141 are both V-shaped grooves with an included angle of 120°. Through the V-shaped groove, it is possible to clamp and fix the outside of cables of different specifications and different outer diameters.

[0027] In some embodiments, a pad 19 is provided on both the upper clamping groove 131 and the lower clamping groove 141. The pad 19 is made of materials such as silicone rubber or polyurethane and has a large coefficient of friction to further ensure the stability of clamping. Micro-textures or particles can be added to the surface of the pad 19 to enhance anti-slip properties.

[0028] In some embodiments, the top of the baffle 18 is detachably fixed to one side of the upper clamping platform 131 by a fixing bolt 181, and the upper clamping platform 131 has a threaded hole on the side opposite to the support plate 11 that matches the fixing bolt 181.

[0029] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0030] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A slip-resistant and vibration-damping hammer for overhead transmission lines, comprising a hammer handle, hammer bodies fixedly mounted at both ends of the hammer handle, and a clamp fixedly mounted in the middle of the hammer handle, characterized in that: The clamp has a connecting seat fixedly disposed on the outside of the hammer handle. A support plate is fixedly disposed on one side of the top of the connecting seat. An upper clamping platform is fixedly disposed on the top of the support plate. At least two lower clamping platforms corresponding to the upper clamping platform are slidably disposed on one side of the support plate below the upper clamping platform. The bottom of the lower clamping platforms is threadedly supported by the top of the connecting seat. A baffle is hinged to the side of the connecting seat opposite to the support plate. The top of the baffle is detachably fixedly connected to one side of the upper clamping platform.

2. The anti-slip vibration damper for overhead transmission lines according to claim 1, characterized in that: The threaded support mechanism has a screw rotatably mounted at the bottom of the lower clamping platform, and a threaded tube threadedly fitted on the outside of the screw at the top of the connecting seat. A locking nut that abuts against the top of the threaded tube is threaded onto the outside of the screw.

3. The anti-slip vibration damper for overhead transmission lines according to claim 2, characterized in that: The upper end of the screw has a hexagonal prism, and the upper end of the hexagonal prism is rotatably connected to the bottom of the lower clamping platform.

4. The anti-slip vibration damper for overhead transmission lines according to claim 1, characterized in that: The support plate has a T-shaped groove corresponding to the lower clamping platform in the vertical direction on the side near the lower clamping platform. A slider is fixedly installed on one side of the lower clamping platform and is slidably disposed inside the T-shaped groove.

5. The anti-slip vibration damper for overhead transmission lines according to claim 1, characterized in that: The bottom of the upper clamping platform is provided with an upper clamping groove, and the top of the lower clamping platform is provided with a lower clamping groove.

6. The anti-slip vibration damper for overhead transmission lines according to claim 5, characterized in that: Both the upper and lower clamping grooves are V-shaped grooves with an included angle of 120°.

7. The anti-slip vibration damper for overhead transmission lines according to claim 5, characterized in that: Both the upper and lower clamping grooves are provided with pads.

8. The anti-slip vibration damper for overhead transmission lines according to claim 1, characterized in that: The top of the baffle is detachably and fixedly connected to one side of the upper clamping platform by fixing bolts.

Images