Automatic locking type anti-loosening grounding wire clamp

Abstract

The invention discloses an automatic locking type anti-loosening grounding wire clamp, and relates to the technical field of electric power overhaul, the automatic locking type anti-loosening grounding wire clamp comprises a hook-shaped clamp head, a rotating rack rotatably connected to the hook-shaped clamp head, and a first arc-shaped clamp fixedly connected to the rotating rack. The first arc-shaped clamp is fixed to the mounting base, the mounting base and the hook-shaped chuck are rotationally mounted, mounting operation of the device is facilitated, the sliding rod rotates along with the first arc-shaped clamp and is embedded into the locking groove through the arc-shaped groove, the second arc-shaped clamp is pushed through transmission of the transmission part to clamp a wire, and clamping stability is achieved; the radians in the first arc-shaped clamp and the second arc-shaped clamp are fitted with the radian of the outer surface of a wire, so that the power-on stability is realized, the grounding wire clamp can be conveniently mounted and dismounted through the unlocking piece, and only the grip needs to be held to move up and down in the actual operation process. On the premise that the grounding wire clamp is stable in clamping, the labor intensity of operators is reduced, and manpower is saved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance, in particular to an automatic locking type anti-loosening grounding wire clamp. Background Art

[0002] The grounding clamp is a key component used to connect the grounding conductor in power systems, electrical equipment and lightning protection projects. Its main function is to reliably connect the equipment or line to the grounding grid, ensure the safe discharge of fault current, lightning current or static electricity, and protect the safety of personnel and equipment. During power maintenance operations, the line is often connected to the grounding clamp after power failure to avoid residual power in the wire or sudden power failure, thereby ensuring the safety of maintenance personnel during the maintenance process.

[0003] For example, a throwing and pulling type grounding wire clamp published with publication number CN214378924U includes a first clamp handle, a second clamp handle, and also includes a first rotating shaft, a tension spring, an active clamping plate, a second rotating shaft, a supporting pin and a supporting clamping block; the first clamp handle and the second clamp handle end are hinged by a first rotating shaft; the tension spring is arranged between the first clamp handle and the second clamp handle; the active clamping plate is arranged on the first clamp handle, and one end of the active clamping plate is rotatably connected to the first clamp handle through the second rotating shaft, and the first clamp handle and the second clamp handle are always opened to form a hook shape. When in use, an insulated wire can be used to throw it onto the transmission wire. After hooking the transmission wire, the connection and disconnection with the high-voltage wire can be achieved by pulling the soft connecting wire. The operation is simple and convenient, which reduces the labor intensity of maintenance personnel.

[0004] Another example is a grounding wire clamp disclosed in publication number CN220731809U, which is convenient for hanging and removing the grounding wire, including an operating rod, a sliding cavity is provided in the operating rod, a grounding body is slidably provided in the sliding cavity, a hook is fixedly provided on the top of the grounding body, the bottom of the grounding body is connected to the grounding wire, an adjustment section is fixedly provided between the grounding body and the grounding wire, a buckle plate detachably connected to the operating rod is provided above the adjustment section, an adjustment piece is provided on the right side of the adjustment section, and the adjustment piece includes a rotating gear, and both ends of the rotating gear are respectively hinged to the buckle plate and the operating rod; an adjustment tooth meshing with the rotating gear is provided on the right end face of the adjustment section, and the axial position of the grounding body in the operating rod is adjusted by adjusting the adjustment section through the adjustment piece, so that the hook can be conveniently controlled to realize the operation of hanging and removing the grounding wire.

[0005] In the prior art such as the above-mentioned patent, the wire clamp has the advantages of simple and convenient operation and reduced labor intensity of maintenance personnel. However, the clamping assembly is too simple to set up, which may lead to unstable clamping and poor contact with the wire. The grounding wire clamp in actual use requires the operator to rotate the rotating rod threaded with the mounting frame, and then push the clamping block to clamp the wire to achieve installation. During the operation, the rotating rod needs to be rotated many times to achieve clamping. Although the clamping is stable, the operation is too time-consuming. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic locking anti-loosening grounding wire clamp to solve the disadvantage that the rotating rod needs to be rotated many times to achieve clamping during the installation process in the above-mentioned prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic locking anti-loosening grounding wire clamp, comprising a hook-shaped clamp, and also comprising: a rotating frame, which is rotatably connected to the hook-shaped clamp; a first arc-shaped clamp, which is fixedly connected to the rotating frame; a second arc-shaped clamp, which is horizontally slidably connected to the hook-shaped clamp, and a first elastic member is provided between the second arc-shaped clamp and the hook-shaped clamp; a sliding rod, which is slidably connected to the rotating frame, and a second elastic member is provided between the second arc-shaped clamp and the rotating frame; the first arc-shaped clamp has: a preparation position with its opening facing downward, and a clamping position with its opening facing the opening of the second arc-shaped clamp in the stroke of rotating on the hook-shaped clamp through the rotating frame; when the first arc-shaped clamp is in the preparation position, it is sleeved on the wire, and during the process of the hook-shaped clamp descending, the first arc-shaped clamp rotates and switches to the clamping position, the elastic force of the second elastic member drives the sliding rod to slide into a locking groove on the hook-shaped clamp, and the sliding rod drives the second arc-shaped clamp to move closer to the first arc-shaped clamp through a transmission member to clamp the wire, and the first elastic member stores energy.

[0008] Furthermore, the first arc-shaped clamp is composed of a linear array of first clamps with multiple curved sides; the second arc-shaped clamp is composed of a linear array of second clamps with multiple curved sides, and the first clamps and the second clamps are arranged alternately.

[0009] Furthermore, the slide bar is slidably inserted in the guide slot on the rotating frame, and the second elastic member includes a compression spring located in the guide slot, one end of the compression spring abuts against the bottom of the guide slot, and the other end abuts against the slide bar.

[0010] Furthermore, the first elastic member is a tension spring, one end of the tension spring is fixedly connected to the second arc-shaped clamp, and the other end of the tension spring is fixedly connected to the hook-shaped clamp.

[0011] Furthermore, the transmission member includes a rotating sleeve rotatably installed on the hook-shaped clamp, one end of the rotating sleeve is slidably connected to the first connecting rod, and the other end is slidably connected to the second connecting rod. A force transmission block is slidably installed in the lock groove along the depth direction, the first connecting rod is rotatably connected to the second arc clamp, and the second connecting rod is rotatably connected to the force transmission block.

[0012] Furthermore, it also includes a reset component, which includes an unlocking member and a third elastic member. When the unlocking member drives the sliding rod to slide out of the locking groove, the elastic force of the third elastic member drives the first arc-shaped member to rotate and reset from the clamping position to the preparatory position.

[0013] Furthermore, the third elastic member includes an arc sleeve, an arc rod and an arc spring, the arc sleeve is fixedly mounted on the hook-shaped clamp, the arc rod is slidably mounted in the arc sleeve, one end of the arc spring is fixedly connected to the arc sleeve, and the other end of the arc spring is fixedly connected to the arc rod.

[0014] Furthermore, the end of the arc-shaped rod has an abutment end.

[0015] Furthermore, the unlocking member includes a rope and a push rod, the push rod is vertically slidably installed on the hook-shaped clamp, one end of the rope passes through the guide groove and is fixedly connected to the slide rod, and the other end is fixedly connected to the push rod, and two fixed pulleys are rotatably installed in the hook-shaped clamp to guide the rope to slide.

[0016] Furthermore, a handle is fixedly connected to the bottom of the push rod.

[0017] In the above technical scheme, the present invention provides an automatic locking anti-loosening grounding wire clamp, which is fixedly connected to the mounting seat through the first arc clamp, and the mounting seat and the hook-shaped clamp are rotatably installed, which is convenient for the installation operation of the grounding wire clamp, and the sliding rod is embedded in the locking groove through the arc groove as the first arc clamp rotates, and the second arc clamp is pushed to clamp the wire through the transmission of the transmission member to achieve clamping stability. The curvature settings inside the first arc clamp and the second arc clamp are both in line with the curvature of the outer surface of the wire, achieving power-on stability. The installation and disassembly of the overall grounding wire clamp can be facilitated by the unlocking member. During the actual operation, you only need to hold the handle and move it up and down. The overall grounding wire clamp reduces the labor intensity of operators and saves manpower under the premise of stable clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the clamping station of the present invention; Figure 4 It is a schematic diagram of the preparation station of the present invention; Figure 5 It is a structural schematic diagram of the reset assembly of the present invention; Figure 6 For the present invention Figure 5 A is an enlarged schematic diagram; Figure 7It is a schematic structural diagram of the first clip of the present invention.

[0020] Description of reference numerals: 1. Hook-shaped clamp; 2. Rotating frame; 3. First arc-shaped clamp; 31. First clamping piece; 4. Second arc-shaped clamp; 41. Second clamping piece; 42. First elastic member; 421. Tension spring; 5. Slide rod; 51. Second elastic member; 511. Compression spring; 52. Locking groove; 53. Arc-shaped slide groove; 6. Transmission member; 61. Rotating sleeve; 62. First connecting rod; 63. Second connecting rod; 64. Force transmission block; 7. Reset assembly; 71. Third elastic member; 711. Arc-shaped slide sleeve; 712. Arc-shaped rod; 713. Arc-shaped spring; 72. Unlocking member; 721. Rope; 722. Push rod; 8. Handle. DETAILED DESCRIPTION

[0021] In order 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] See also Figure 1-Figure 7 An automatic locking anti-loosening grounding wire clamp provided by an embodiment of the present invention comprises a hook-shaped clamp 1, a rotating frame 2, a first arc-shaped clamp 3, a second arc-shaped clamp 4 and a sliding rod 5, wherein the hook-shaped clamp 1 is in an inverted "J" shape as a whole, and is specifically composed of a straight rod portion and a hook portion connected to each other, the rotating frame 2 is rotatably connected near the hook portion of the hook-shaped clamp 1, the rotating frame 2 comprises two supporting rods at an angle to each other, the first arc-shaped clamp 3 is fixedly connected to the rotating frame 2, the first arc-shaped clamp 3 is composed of a linear array of multiple first clamps 31 with curved sides, the second arc-shaped clamp 4 is horizontally slidably connected to the hook-shaped clamp 1, the second arc-shaped clamp 4 is composed of a linear array of multiple second clamps 41 with curved sides, the first clamps 31 and the second clamps 41 are alternately arranged, and during the rotation of the first arc-shaped clamp 3 along the mounting seat, each first clamp 31 can just pass through the gap between the two second clamps 41 (refer to Figure 7 ). A first elastic member 42 is provided between the second arc clamp 4 and the hook clamp 1. The first arc clamp 3 has two extreme positions in the stroke of rotating on the hook clamp 1 through the rotating frame 2, namely the preparation position and the clamping position. When the first arc clamp 3 is in the preparation position, the opening of the first arc clamp 3 faces downward; when the first arc clamp 3 is in the clamping position, the opening of the first arc clamp 3 faces the opening of the second arc clamp 4.

[0023] A guide slot is provided on one of the supporting rods of the rotating frame 2, and the slide bar 5 is movably arranged in the guide slot, so that the slide bar 5 can slide relative to the rotating frame 2 through the guide slot, but the slide bar 5 will not completely leave the guide slot, and a compression spring 511 is installed in the guide slot, one end of the compression spring 511 abuts against the bottom of the guide slot, and the other end abuts against the end of the slide bar 5. Of course, the compression spring 511 can be replaced by other first elastic members 42, such as tension springs, air springs, etc., and it is required that the elastic force of the first elastic member 42 is released to drive the slide bar 5 to slide outside the guide slot.

[0024] The hook-shaped clamp 1 is provided with an arc-shaped slide groove 53 for use with the slide rod 5. The arc-shaped slide groove 53 is below the mouth of the locking groove 52. When the first arc-shaped clamp 3 is rotated and switched from the preparation position to the clamping position, the rotating frame 2 and the slide rod 5 rotate together with the first arc-shaped member. When it rotates to the vicinity of the clamping position, a sliding contact occurs between the end of the slide rod 5 away from the compression spring 511 and the arc-shaped slide groove 53, so that the slide rod 5 slides into the guide groove and squeezes the compression spring 511. The compression spring 511 accumulates energy until the first arc-shaped clamp 3 rotates to the clamping position. At this time, the slide rod 5 is opposite to the locking groove 52. The elastic potential energy accumulated in the compression spring 511 is released, so that the slide rod 5 is quickly inserted into the locking groove 52, thereby locking the first arc-shaped clamp 3 in the clamping position, and the position of the rotating clamp is also fixed.

[0025] A tension spring 421 is installed in the hook-shaped clamp 1, one end of the tension spring 421 is fixedly connected to the second arc clamp 4, and the other end is fixedly connected to the hook-shaped clamp 1. Of course, the tension spring 421 can be replaced by other second elastic members 51, such as compression springs, air springs, etc., and it is required that when the elastic force of the second elastic member 51 is released, the second arc clamp 4 is driven to slide in a direction away from the first arc clamp 3.

[0026] The transmission member 6 includes a rotating sleeve 61 rotatably mounted on the hook-shaped clamp 1, one end of the rotating sleeve 61 is slidably connected to the first connecting rod 62, and the other end is slidably connected to the second connecting rod 63. A force transmission block 64 is slidably installed in the lock groove 52 along the depth direction. The first connecting rod 62 is rotatably connected to the second arc clamp 4, and the second connecting rod 63 is rotatably connected to the force transmission block 64.

[0027] When the first arc clamp 3 is in the clamping position, the sliding rod 5 is embedded in the locking groove 52. In the process of the compression spring 511 releasing the elastic potential energy, the sliding rod 5 slides inward and pushes the force transmission block 64 to slide in the locking groove 52 along the horizontal direction. When the force transmission block 64 moves and the rotating sleeve 61 is rotated and installed, the force is transmitted through the first connecting rod and the second connecting rod 63 to push the second arc clamp 4 to move. At this time, the first connecting rod 62 and the second connecting rod 63 slide in the direction away from the rotating sleeve 61. Since the first connecting rod 62 is rotationally connected to the second arc clamp 4 and the second arc clamp 4 is horizontally slidably installed, the second arc clamp 4 slides in the horizontal direction, moves in the direction close to the wire and locks the wire.

[0028] The lock body 7 is provided with a lock member 721 and a third spring 71, wherein the lock member 721 is provided with a lock member 722 and a third spring 71. The lock member 721 is provided with a lock member 722 and a third spring 71. The lock member 721 is provided with a lock member 722 and a third spring 71. The lock member 721 is provided with a lock member 722 and a third spring 71. The lock member 721 is provided with a lock member 722 and a third spring 71. The lock member 721 is provided with a lock member 722 and a third spring 71. Push the handle 8 upward, the handle 8 drives the push rod 722 to slide along the sliding installation direction of the push rod 722, the sliding of the push rod 722 drives the rope 721 to move, the rope 721 pulls the slide bar 5 to move along the guide groove until the slide bar 5 moves to a position where it is no longer embedded in the lock groove 52. It is worth mentioning that during the resetting process of the slide bar 5, the elastic potential energy of the tension spring 421 is released, and during the movement of the slide bar 5, the tension spring 421 drives the second arc clamp 4 to move and reset.

[0029] A third elastic member 71 is provided in the hook-shaped chuck 1, and the third elastic member 71 includes an arc-shaped sleeve 711, an arc-shaped rod 712 and an arc-shaped spring 713. The arc-shaped sleeve 711 is fixedly installed near the hook portion of the hook-shaped chuck 1, and the arc-shaped rod 712 is slidably installed in the arc-shaped sleeve 711. One end of the arc-shaped spring 713 abuts against the arc-shaped sleeve 711, and the other end of the arc-shaped spring 713 abuts against the arc-shaped rod 712. The end of the arc-shaped rod 712 located outside the arc-shaped sleeve 711 is the abutting end.

[0030] The arc spring 713 in the arc sleeve 711 releases its elastic potential energy, driving the arc rod 712 to slide, and the arc rod 712 drives the abutment end to move, and the abutment end pushes the side wall of the first arc clamp 3 to rotate along the rotation direction of the rotating seat until the first arc clamp 3 rotates to the preparation position. Of course, the arc spring 713 can be replaced by other elastic members, such as compression springs, air springs, etc., requiring that the elastic force of the elastic member drives the arc rod 712 to slide in a direction away from the arc sleeve 711 when released.

[0031] When the first arc clamp 3 is in use, the first arc clamp 3 is in a state of opening vertically downward, that is, the preparation position. The operator holds the handle 8 and moves the hook clamp 1, so that the first arc clamp 3 approaches the wire from above the wire downward until the wire is embedded in the opening of the first arc clamp 3. At this time, the operator pulls the handle 8 downward, and the first arc clamp 3 rotates toward the clamping position together with the rotating frame 2 under the obstruction of the wire, and the rotating frame 2 drives the sliding rod 5 to rotate together. During the rotation process, on the one hand, the first clamp 31 passes through the gap formed by the second arc clamp, and on the other hand, the side wall of the support rod fixedly connected to the first arc clamp 3 pushes the abutting end and drives the arc rod 712 to slide along the arc sliding sleeve 711, and the arc spring 713 is energized. On the other hand, when approaching the clamping position, the end of the sliding rod 5 away from the compression spring 511 is in sliding contact with the arc sliding groove 53, so that the sliding rod 5 slides into the guide groove and squeezes the compression spring 511, and the compression spring 511 is energized.

[0032] Next, when the rotating frame 2 rotates to the point where the slide bar 5 is facing the locking groove 52, that is, the first arc clamp 3 moves to the clamping position, the compression spring 511 releases energy, pushing the slide bar 5 to slide, the slide bar 5 is embedded in the locking groove 52, and pushing the force transmission block 64 to slide in the horizontal direction. The force transmission block 64, with the cooperation of the transmission member 6, pushes the second arc clamp 4 to move toward the first arc clamp 3, so that the second arc clamp 4 cooperates with the first arc clamp 3 to clamp and lock the wire. At this time, the tension spring 421 is in an energy storage state, and the installation operation on the grounding wire clamp is completed.

[0033] After the power maintenance work is completed, it is necessary to remove the grounding wire clamp, push the handle 8 upward, move the push rod 722 upward, and pull the slide bar 5 along the guide groove to exit the lock groove 52 through the rope 721. At the same time, after the force transmission block 64 loses the squeezing of the slide bar 5, the elastic potential energy of the tension spring 421 is released, driving the second arc clamp 4 to move away from the wire and reset, and the force transmission block 64 also slides to a position close to the notch of the lock groove 52.

[0034] After the slide rod 5 exits the locking groove 52, the elastic potential energy of the arc spring 713 in the arc sleeve 711 begins to be released immediately, driving the arc rod 712 to slide, and the arc rod 712 drives the abutting end to move, and the abutting end pushes the side wall of the first arc clamp 3 to rotate along the rotation direction of the rotating seat until the first arc clamp 3 rotates and returns to the preparatory position with the rotating frame 2, and continues to push the handle 8 upward until the wire leaves the first arc clamp 3, removes the grounding wire clamp, and the operation is completed.

[0035] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that 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 above 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 automatic locking anti-loosening grounding wire clamp, comprising a hook-shaped clamp, characterized in that: Also includes: A rotating frame rotatably connected to the hook-shaped clamp; A first arc-shaped clamp, which is fixedly connected to the rotating frame; A second arc-shaped clamp is horizontally slidably connected to the hook-shaped clamp, and a first elastic member is provided between the second arc-shaped clamp and the hook-shaped clamp; A sliding rod, which is slidably connected to the rotating frame, and a second elastic member is provided between the sliding rod and the rotating frame; The first arc-shaped clamp has a preparation position with its opening facing downward and a clamping position with its opening facing the opening of the second arc-shaped clamp during the rotation of the first arc-shaped clamp on the hook-shaped clamp through the rotating frame; When the first arc clamp is in the preparation position, it is sleeved on the wire. During the descending process of the hook-shaped clamp, the first arc clamp rotates and switches to the clamping position. The elastic force of the second elastic member drives the slide bar to slide into a locking groove on the hook-shaped clamp, and the slide bar drives the second arc clamp to move closer to the first arc clamp through a transmission member to clamp the wire and store energy in the first elastic member.

2. The automatic locking anti-loosening grounding clamp according to claim 1, characterized in that: The first arc-shaped clamp is composed of a linear array of first clamps with multiple curved sides; the second arc-shaped clamp is composed of a linear array of second clamps with multiple curved sides, and the first clamps and the second clamps are arranged alternately.

3. The automatic locking anti-loosening grounding clamp according to claim 1, characterized in that: The slide bar is slidably inserted in the guide slot on the rotating frame, and the second elastic member comprises a compression spring located in the guide slot, one end of the compression spring abuts against the bottom of the guide slot, and the other end abuts against the slide bar.

4. The automatic locking anti-loosening grounding clamp according to claim 1, characterized in that: The first elastic member is a tension spring, one end of which is fixedly connected to the second arc-shaped clamp, and the other end of which is fixedly connected to the hook-shaped clamp.

5. The automatic locking anti-loosening grounding clamp according to claim 1, characterized in that: The transmission member includes a rotating sleeve rotatably installed on the hook-shaped clamp, one end of the rotating sleeve is slidably connected to the first connecting rod, and the other end is slidably connected to the second connecting rod. A force transmission block is slidably installed in the lock groove along the depth direction. The first connecting rod is rotatably connected to the second arc clamp, and the second connecting rod is rotatably connected to the force transmission block.

6. The automatic locking anti-loosening grounding clamp according to claim 1, characterized in that: It also includes a reset component, which includes an unlocking member and a third elastic member. When the unlocking member drives the slide bar to slide out of the lock slot, the elastic force of the third elastic member drives the first arc-shaped member to rotate and reset from the clamping position to the preparatory position.

7. The automatic locking anti-loosening grounding clamp according to claim 6, characterized in that: The third elastic member includes an arc sleeve, an arc rod and an arc spring. The arc sleeve is fixedly mounted on the hook-shaped clamp, the arc rod is slidably mounted in the arc sleeve, one end of the arc spring is fixedly connected to the arc sleeve, and the other end of the arc spring is fixedly connected to the arc rod.

8. The automatic locking anti-loosening grounding clamp according to claim 7, characterized in that: The end of the arc-shaped rod has an abutment end.

9. The automatic locking anti-loosening grounding clamp according to claim 6, characterized in that: The unlocking member includes a rope and a push rod, the push rod is vertically slidably installed on the hook-shaped clamp, one end of the rope passes through the guide groove and is fixedly connected to the slide rod, and the other end is fixedly connected to the push rod. Two fixed pulleys are rotatably installed in the hook-shaped clamp to guide the rope to slide.

10. The automatic locking anti-loosening grounding clamp according to claim 9, characterized in that: The bottom of the push rod is fixedly connected with a handle.

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