Insulator holder

Abstract

The invention discloses an insulator clamp holder, and relates to the technical field of electrical engineering, the insulator clamp holder comprises an insulator, and further comprises a mounting part, a clamping assembly, a sliding clamp, a rotating clamp and a locking piece, the mounting part is used for clamping the neck of the top end of the insulator and is matched with the outer diameter of a high-voltage line, and the lower surface of the rotating clamp is also provided with an arc-shaped surface matched with the outer diameter of the high-voltage line; when the sliding clamp and the rotating clamp are matched to clamp the high-voltage wire, the sliding clamp and the rotating clamp abut against the high-voltage wire so that clamping can be stable, when the sliding clamp enters the clamping station, the locking piece is triggered through the transmission piece, the locking piece locks sliding of the sliding clamp, and then clamping is changed from elastic clamping to fixed clamping. Furthermore, in a more stable clamping process, an operator only needs to hold the mounting part by hand to align at the high-voltage wire to move upwards and then move the mounting part downwards, so that a threaded connection fixing mode that the operator needs to manually screw a bolt in the prior art is avoided, the working efficiency is improved, the high-altitude operation time is shortened, and the high-voltage wire is stably clamped; and the high-voltage line is prevented from falling off.

Description

Technical Field

[0001] This invention relates to the field of electrical engineering technology, specifically to an insulator clamp. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a grounding component, capable of withstanding voltage and mechanical stress. Insulators come in many types and shapes. Although different types of insulators vary considerably in structure and appearance, they all consist of two main parts: insulating components and connecting hardware. An insulator is a special type of insulating control that plays a crucial role in overhead transmission lines. In earlier times, insulators were mostly used on utility poles. Gradually, they evolved into the use of disc-shaped insulators hung at one end of high-voltage power line towers to increase creepage distance; these are typically made of glass or ceramic and are called insulators.

[0003] The prior art disclosed in CN211319855U is an insulator with a variable number of wire bundles, including an insulator body, a guide post at the top of the insulator body, the guide post passing through a lifting plate, and clamping plates on the bottom surface of the lifting plate and the top surface of the insulator body. Insulated wires are clamped between the two clamping plates, and a compression spring is provided on the bottom surface of the lifting plate, with the bottom end of the compression spring fixed to the surface of a connecting ring. The connecting ring is fixed to the top of the insulator body, and a limit ring is provided on the upper part of the lifting plate. The beneficial effect is that the variable number of wire bundles insulator proposed in this utility model adds a clamping plate between the lifting plate and the insulator, which can clamp multiple insulated wires. This allows for the installation of different numbers of insulated wires according to actual needs, thus improving the applicability of the insulator.

[0004] High-voltage insulators are insulators used in high-voltage and ultra-high-voltage overhead transmission lines and substations. To meet the needs of different voltage levels, insulator strings or multi-section insulating supports are usually composed of different numbers of single insulators of the same type. The high-voltage line is placed in a pre-set conductor groove on top of the insulator. In reality, slippage is prone to occur. Slippage of the high-voltage line will reduce the isolation effect of the insulator on the high-voltage line, leading to a short circuit.

[0005] In existing technologies, a common solution to prevent high-voltage lines from slipping is to install a wire clamping device with a thread on top of the insulator to fix the high-voltage line to the top of the insulator. However, in actual operation, the installation requires the operator to tighten the bolts at close range, which is very inconvenient and increases the time the operator spends at height, thus increasing the risk of the operation. Summary of the Invention

[0006] The purpose of this invention is to provide an insulator clamp to solve the shortcomings of the prior art, which requires operators to manually tighten bolts for fixing during actual operation, which is time-consuming and labor-intensive, and increases the time that operators spend at height, thus increasing the risk of operation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an insulator clamp, comprising an insulator, and further comprising a mounting part, a clamping assembly, a sliding clamp, a rotating clamp, and a locking member; the mounting part is used to clamp the neck of the top end of the insulator; the clamping assembly includes a base fixedly connected to the mounting part; the sliding clamp is vertically slidably connected to the base via two symmetrically fixed wing plates; two symmetrically arranged rotating clamps are respectively rotatably connected to a sliding plate, and both sliding plates are horizontally slidably connected to the base; the locking member is disposed on the base for locking the sliding clamp's vertical sliding. When the clamping assembly is not clamping the high-voltage line, the rotating clamp is in a preparatory position. When the clamping assembly clamps the high-voltage line, the sliding clamp is pushed upward by a first elastic element and presses against the two rotating clamps to the clamping position. The two sliding plates are locked by a locking element triggered by a transmission element to prevent the sliding clamp from sliding. The sliding clamp and the rotating clamp cooperate to clamp the high-voltage line.

[0008] Furthermore, both of the aforementioned rotating clamps are composed of a linear array of multiple clamping plates with curved sides, and the two sets of clamping plates are staggered. A third torsion spring is installed between the rotating clamp and the sliding plate.

[0009] Furthermore, the transmission component includes a first connecting rod, a second connecting rod, and a third connecting rod. The first connecting rod is rotatably connected to the slide plate, the second connecting rod is vertically slidably connected to the base and rotatably connected to the first connecting rod, and the third connecting rod is rotatably connected to the second connecting rod.

[0010] Furthermore, the locking component includes a sliding sleeve slidably connected to the base, one end of which is rotatably connected to the third connecting rod. A locking plate is slidably connected inside the sliding sleeve through a second elastic element, and the upper surface of the locking plate is fitted against the lower surface of the wing plate.

[0011] Furthermore, it also includes an unlocking component, which includes an unlocking rod that is horizontally slidably connected to the base, with one end extending through the base and the other end fixedly connected to the lock plate.

[0012] Furthermore, the first elastic element includes a first spring.

[0013] Furthermore, a third elastic element is provided between the slide plate and the base, which pushes the slide plate and the rotating clamp toward the ready position under the action of its elastic force.

[0014] Furthermore, the mounting part includes a half-ring rod, the base is fixedly connected to the half-ring rod, and a first arc rod and a second arc rod are rotatably connected to both ends of the half-ring rod, the first arc rod and the second arc rod rotate to form a complete ring with the half-ring rod, the complete ring is adapted to the neck of the top of the insulator, and a locking component is provided at the ends of the first arc rod and the second arc rod.

[0015] Furthermore, the locking assembly includes a locking pin rotatably connected to the first arc-shaped rod, one end of which extends out of the side of the first arc-shaped rod, and a locking groove for cooperating with the locking pin is provided on the second arc-shaped rod.

[0016] Furthermore, a first torsion spring is installed between the arc-shaped rod and the semi-circular rod, a second torsion spring is installed between the locking pin and the first arc-shaped rod, and a guide rod for use with the pre-set conductor groove at the top of the insulator is fixedly connected to the base.

[0017] In the above technical solution, the insulator clamp provided by the present invention has an installation part that can be clamped on the neck of the insulator top, so that the installation part is fixed. The upper surface of the sliding clamp is provided with an arc-shaped groove to adapt to the outer diameter of the high-voltage line, and the lower surface of the rotating clamp is also provided with an arc-shaped surface to adapt to the outer diameter of the high-voltage line. Thus, when the sliding clamp and the rotating clamp cooperate to clamp the high-voltage line, they are in close contact with the high-voltage line, so that the clamping is stable. When the rotating clamp enters the clamping position, the locking part is triggered by the transmission component. The locking part locks the sliding clamp to prevent the sliding, so that the clamping changes from elastic clamping to fixed clamping, which further makes the clamping more stable. During the process, the operator only needs to hold the installation part, align it with the high-voltage line, move the installation part upward and then downward, avoiding the threaded connection fixing method of the prior art that requires the operator to tighten the bolt at close range, improving work efficiency, reducing high-altitude work time, and ensuring stable clamping of the high-voltage line, preventing the high-voltage line from falling off. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the insulator of the present invention; Figure 3 This is a three-dimensional schematic diagram of the high-voltage wire clamping device of the present invention; Figure 4 This is a three-dimensional structural diagram of the preparatory station of the present invention; Figure 5 This is a schematic diagram of the high-voltage line embedded clamping assembly of the present invention; Figure 6 This is a front view of the preparatory station of the present invention; Figure 7 For the present invention Figure 6 An enlarged schematic diagram of point A in the middle; Figure 8 This is a front view of the clamping station of the present invention; Figure 9 For the present invention Figure 8 An enlarged diagram of point B in the middle; Figure 10 This is a schematic diagram of the clamping component of the present invention; Figure 11 This is a schematic diagram of the locking state of the locking component of the present invention; Figure 12 This is a schematic diagram of the unlocked state of the locking component of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Insulator; 2. Mounting part; 21. Semi-ring rod; 22. First arc rod; 23. Second arc rod; 24. Locking assembly; 241. Locking pin; 3. Clamping assembly; 31. Base; 311. Guide rod; 32. Sliding clamp; 321. First spring; 323. Wing plate; 33. Rotating clamp; 331. Slide plate; 332. Third spring; 333. Clamping piece; 4. Locking component; 41. Sliding sleeve; 42. Locking plate; 421. Second spring; 5. Transmission component; 51. First connecting rod; 52. Second connecting rod; 53. Third connecting rod; 6. Unlocking component; 61. Unlocking rod. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Please see Figures 1-12 An insulator clamp provided in this embodiment of the invention includes an insulator 1, a mounting part 2, a clamping assembly 3, a sliding clamp 32, a rotating clamp 33, and a locking member 4. The mounting part 2 is used to clamp the neck of the top end of the insulator 1. The clamping assembly 3 includes a base 31 fixedly connected to the mounting part 2. Two symmetrically arranged wing plates 323 are vertically slidably connected to the base 31. The sliding clamp 32 is fixedly connected to the wing plates 323 and then slidably connected to the base 31. There are two rotating clamps 33, and the two sliding plates 331 are horizontally slidably connected to the base 31. The two rotating clamps 33 and the two sliding plates 331 are fixedly connected one-to-one. The locking member 4 is provided on the base 31 and is used to lock the sliding clamp 32 up and down after the insulator clamp clamps the high-voltage line. When the clamping assembly 3 is not clamping the high-voltage line, the rotating clamp 33 is in a preparatory position. During the installation process, the sliding clamp 32 is pushed upward by a first elastic element and pushes the two rotating clamps 33 to the clamping position by pushing the high-voltage line against it. The two sliding plates 331 are locked by a locking element 4 triggered by a transmission element 5 to stop the sliding of the sliding clamp 32. The sliding clamp 32 and the rotating clamp 33 cooperate to clamp the high-voltage line.

[0023] In the above technical solution, the mounting part 2 can be clamped on the top neck of the insulator 1 to fix the mounting part. The upper surface of the sliding clamp 32 is provided with an arc-shaped groove to adapt to the outer diameter of the high-voltage line. The lower surface of the rotating clamp 33 is also provided with an arc-shaped surface to adapt to the outer diameter of the high-voltage line. Thus, when the sliding clamp 32 and the rotating clamp 33 cooperate to clamp the high-voltage line, they are in close contact with the high-voltage line, making the clamping more stable. During the process, the operator only needs to hold the mounting part, align it with the high-voltage line, move it upward and then downward, avoiding the threaded connection fixing method that requires the operator to manually tighten the bolts in the prior art. This improves work efficiency, reduces the time spent working at height, and ensures stable clamping of the high-voltage line, preventing the high-voltage line from falling off.

[0024] Both rotating clamps 33 are composed of a linear array of multiple clamping pieces 333 with curved sides. The two sets of clamping pieces 333 are staggered. A third torsion spring is installed between the rotating clamp 33 and the slide plate 331. A third elastic element is provided between the slide plate 331 and the base 31. Under the action of its elastic force, the slide plate 331 and the rotating clamp 33 are pushed towards the ready position.

[0025] After the handheld mounting part is aligned with the high-voltage line, during the upward movement of the mounting part, the high-voltage line contacts and pushes the two rotating clamps 33. The two rotating clamps 33 rotate under force. Due to the staggered arrangement of the clamping pieces 333, when the two rotating clamps 33 rotate downward and reach a state where they separate from each other, the high-voltage line is embedded inside the clamping assembly 3 and presses against the arc-shaped groove on the upper surface of the sliding clamp 32. In this embodiment, the first elastic element is selected as the first spring 321, and the third elastic element is selected as the third spring 332. The high-voltage line continues to slide downward against the sliding clamp 32. At this time, the first spring 321 is compressed. After the high-voltage line no longer contacts the two rotating clamps 33, the elastic potential energy of the third spring 332 is released. Release, causing the two slide plates 331 to reset. At the same time, the two rotating clamps 33 begin to reset under the force of the torsion springs until they return to the preparatory position (at this time, the rotating clamps 33 rotate to their limit position and can no longer rotate upward). Then, the mounting part moves downward. When the mounting part moves downward, the first spring 321 pushes the sliding clamp 32 to keep it pressed against the high voltage line. The high voltage line presses against the two intersecting rotating clamps 33. Then, the arc-shaped openings of the two rotating clamps 33 begin to slide to both sides along the sliding mounting direction of the slide plate 331 under the pushing force of the high voltage line. The rotating clamps 33 drive the slide plate 331 to slide together. The sliding of the slide plate 331 triggers the locking part 4 through the transmission part 5, completing the locking of the sliding clamp 32.

[0026] In another embodiment, the first elastic element and the third elastic element may be other elastic devices that can apply an upward elastic force to the sliding clamp 32, such as elastic rubber, etc., all of which are within the protection scope of the present invention.

[0027] The transmission component 5 includes a first connecting rod 51, a second connecting rod 52, and a third connecting rod 53. The first connecting rod 51 is rotatably connected to the slide plate 331. The second connecting rod 52 is vertically slidably connected to the base 31 and rotatably connected to the first connecting rod 51. The third connecting rod 53 is rotatably connected to the second connecting rod 52. The locking component 4 includes a sliding sleeve 41 slidably connected to the base 31, one end of which is rotatably connected to the third connecting rod 53. A locking plate 42 is slidably connected inside the sliding sleeve 41 through a second elastic member. The upper surface of the locking plate 42 is fitted against the lower surface of the wing plate 323.

[0028] When the slide plate 331 is subjected to force and slides, the slide plate 331 pushes the first connecting rod 51 to move, and then the first connecting rod 51 pushes the second connecting rod 52 to slide downward in the vertical direction. The second connecting rod 52 pushes the third connecting rod 53 to move, and the third connecting rod 53 pushes the sliding sleeve 41 to slide in the horizontal direction. The movement of the sliding sleeve 41 causes the locking plate 42 to slide until the locking plate 42 slides below the wing plate 323, thus completing the locking of the wing plate 323.

[0029] It also includes an unlocking component 6, which includes an unlocking rod 61. The unlocking rod 61 is horizontally slidably connected to the base 31, with one end extending through the base 31 and the other end fixedly connected to the locking plate 42. When it is necessary to disassemble the insulator holder, pulling the unlocking rod 61 can drive the locking plate 42 to slide, thereby making the locking plate 42 no longer jammed, which facilitates the disassembly of the insulator holder.

[0030] The mounting part 2 includes a half-ring rod 21, with a first arc rod 22 and a second arc rod 23 rotatably connected to its two ends respectively. The first arc rod 22 and the second arc rod 23 rotatably form a complete ring with the half-ring rod 21. The complete ring is adapted to the neck of the top end of the insulator 1. A locking assembly 24 is provided at the ends of the first arc rod 22 and the second arc rod 23. The locking assembly 24 includes a locking pin 241 rotatably connected to the first arc rod 22. One end of the locking pin 241 extends out of the side of the first arc rod 22. A locking groove is provided on the second arc rod 23 to cooperate with the locking pin 241.

[0031] After clamping the high-voltage line, hold the mounting part and align the guide rod 311 with the wire groove at the top of the insulator 1. Then, push the mounting part horizontally toward the insulator 1. The guide rod 311 moves along the wire groove. At this time, the first arc rod 22 and the second arc rod 23 are in an open state. During the movement, the neck of the top of the insulator 1 presses against the inner ends of the first arc rod 22 and the second arc rod 23. As the neck of the top of the insulator 1 moves toward the semi-ring rod 21, the inner ends of the first arc rod 22 and the second arc rod 23 are subjected to force, causing the first arc rod 22 and the second arc rod 23 to rotate. When the neck of the top of the insulator 1 is in contact with the inner wall of the semi-ring rod 21, the first arc rod 22 and the second arc rod 23 are closed. During the closing process of the first arc rod and the second arc rod 23, the locking pin 241 is embedded in the locking groove and abuts and locks, completing the installation of the mounting part 2 on the top of the insulator 1.

[0032] A second torsion spring is installed between the locking pin 241 and the first arc-shaped rod 22, and a guide rod 311 is fixedly connected to the base 31 to cooperate with the wire groove preset on the top of the insulator 1.

[0033] Working principle: During installation, the operator aligns the mounting part with the high-voltage line and moves it upwards. During this process, the high-voltage line contacts and pushes the two rotating clamps 33. The two rotating clamps 33 rotate under force. Due to the staggered arrangement of the clamping plates 333, as the two rotating clamps 33 rotate downwards, when they separate, the high-voltage line embeds into the clamping assembly 3 and presses against the arc-shaped groove on the upper surface of the sliding clamp 32. The high-voltage line continues to slide downwards against the sliding clamp 32, at which point the first spring 321 is compressed. After the high-voltage line no longer contacts the two rotating clamps 33, the two rotating clamps 33 begin to reset under the force of the torsion spring, returning to the preparatory position (at this point, the rotating clamps 33 have rotated to their limit position, not...). (It can rotate upwards again). At this time, the mounting part moves downwards. When the mounting part moves downwards, the first spring 321 pushes the sliding clamp 32 to keep it pressed against the high voltage line. The high voltage line presses against the two intersecting rotating clamps 33. Then, the two rotating clamps 33 begin to slide to both sides under the pushing force of the high voltage line. The rotating clamps 33 drive the slide plate 331 to slide together. The slide plate 331 pushes the first connecting rod 51 to move. Then, the first connecting rod 51 pushes the second connecting rod 52 to slide downwards in the vertical direction. The second connecting rod 52 pushes the third connecting rod 53 to move. The third connecting rod 53 pushes the sliding sleeve 41 to slide. The sliding sleeve 41 drives the locking plate 42 to move together. The movement is until the locking plate 42 clamps the lower surface of the wing plate 323, completing the locking of the sliding clamp 32.

[0034] After clamping the high-voltage line, hold the mounting part and align the guide rod 311 with the groove on the top of the insulator 1. Then, push the mounting part horizontally toward the insulator 1. The guide rod 311 moves along the groove. At this time, the first arc rod 22 and the second arc rod 23 are in an open state. During the movement, the neck of the top of the insulator 1 presses against the inner ends of the first arc rod 22 and the second arc rod 23. As the neck of the top of the insulator 1 moves toward the semi-ring rod 21, the inner ends of the first arc rod 22 and the second arc rod 23 are subjected to force, causing the first arc rod 22 and the second arc rod 23 to rotate. When the neck of the top of the insulator 1 is in contact with the inner wall of the semi-ring rod 21, the first arc rod 22 and the second arc rod 23 are closed. During the closing process of the first arc rod and the second arc rod 23, the locking pin 241 is embedded in the locking groove and abuts and locks, completing the installation of the mounting part 2 on the top of the insulator 1, and thus the overall device is installed.

[0035] When disassembly is required, the end of the first arc-shaped rod 22 extending from the locking pin 241 is moved so that the end of the locking pin 241 with the locking tongue no longer abuts against the locking groove. The device is then moved backward to fix the device on the insulator 1. Then, the unlocking rod 61 is pulled, and the unlocking rod 61 slides, causing the locking plate 42 to slide (at this time, the second spring 421 begins to compress and is in an energy storage state. After disassembly, the elastic potential energy of the second spring 421 is released, pushing the locking plate 42 to reset). The locking plate 42 no longer abuts against the lower surface of the wing plate 323. Then, the device is moved upward to make the sliding clamp 32 of the high voltage line slide downward. After unlocking, the device is disassembled and removed from the high voltage line, thus completing the disassembly.

[0036] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An insulator holder comprising a holding assembly held to a top end neck of an insulator by a mounting portion, characterized in that, The clamping assembly comprises: a base arranged on the mounting portion; a sliding clamp vertically and slidably connected to the base via the wing plate, and provided with a locking member between the sliding clamp and the base; two oppositely arranged sliding plates, each of which is horizontally and slidably connected to the base; two oppositely arranged rotating clamps, each of which has an arc-shaped opening at the lower portion and is elastically and rotatably connected to the corresponding sliding plate; when the clamping assembly is not clamping the high-voltage line, the two rotating clamps are in a standby position; when the clamping assembly is clamping the high-voltage line, the sliding clamp slides upward under the elastic force of the first elastic member, and pushes the rotating clamps to slide along the sliding plate to a clamping position by abutting against the arc-shaped opening of the rotating clamps via the high-voltage line; the two sliding plates trigger the locking member to lock the sliding clamp via a transmission member; and the sliding clamp and the rotating clamp cooperate to clamp the high-voltage line.

2. A holder for insulators according to claim 1, characterised in that Each of the two rotating clamps is composed of a plurality of clamping pieces with an arc on the side surface, and the two groups of clamping pieces are arranged alternately; a third torsional spring is arranged between the rotating clamp and the sliding plate.

3. A holder for insulators as claimed in claim 1, wherein The transmission member comprises a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod is rotatably connected to the sliding plate; the second connecting rod is vertically and slidably connected to the base and rotatably connected to the first connecting rod; and the third connecting rod is rotatably connected to the second connecting rod.

4. A holder for insulators as claimed in claim 3, wherein The locking member comprises a sliding sleeve slidably connected to the base, one end of which is rotatably connected to the third connecting rod; and a locking plate is slidably connected to the sliding sleeve via a second elastic member, and the upper surface of the locking plate is arranged in abutment with the lower surface of the wing plate.

5. A holder for insulators as claimed in claim 4, characterised in that The unlocking member comprises an unlocking rod, which is horizontally and slidably connected to the base, one end of which extends out of the base, and the other end of which is fixedly connected to the locking plate.

6. A holder for insulators as claimed in claim 1, wherein The first elastic member comprises a first spring.

7. A holder for insulators as claimed in claim 1, wherein A third elastic member is arranged between the sliding plate and the base, and the sliding plate and the rotating clamp tend to the standby position under the elastic force of the third elastic member.

8. A holder for insulators as defined in claim 1, characterized in that The mounting portion comprises a half-ring rod, the base is fixedly connected to the half-ring rod, first and second arc-shaped rods are rotatably connected to the two ends of the half-ring rod respectively, the first and second arc-shaped rods are rotatably connected to the half-ring rod to form a whole ring, the whole ring is adapted to the top end neck portion of the insulator, and a locking assembly is arranged at the end portion of the first and second arc-shaped rods.

9. A holder for insulators according to claim 8, wherein The locking assembly comprises a locking pin rotatably connected to the first arc-shaped rod, and a locking groove is arranged on the second arc-shaped rod to cooperate with the locking pin.

10. A holder for insulators according to claim 9, wherein A first torsional spring is arranged between the arc-shaped rod and the half-ring rod, a second torsional spring is arranged between the locking pin and the first arc-shaped rod, and a guide rod is fixedly connected to the base to cooperate with a wire groove prearranged at the top portion of the insulator.

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