Automatic telescopic grounding wire

Abstract

The utility model discloses an automatic telescopic ground wire, relates to the technical field of electric power facility maintenance, and particularly aims to solve the problems that in the background technology, an existing ground wire cannot be telescopic according to different inspection heights, and an existing telescopic self-locking mechanism is used as a clamping part, so that the cost is too high and the use is inconvenient. According to the technical scheme, the automatic telescopic ground wire comprises a ground wire clamp and an insulating rod, the ground wire clamp comprises a first clamp body and a second clamp body which are matched with each other, the first clamp body and the second clamp body are used in cooperation with a driving rod through a driving mechanism, and the driving rod penetrates into the insulating rod and is used in cooperation with the insulating rod. The effects of stretching according to different inspection heights, being convenient to store and transport and being economical and practical are achieved, and the problems existing in the background technology are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power facility maintenance, and particularly relates to an automatic telescopic grounding wire. Background Art

[0002] Substations are an important part of the power system, and the safety of their equipment needs to be guaranteed. However, during the maintenance of substation equipment, there are some potential dangers, and the installation of grounding wires is to solve these problems.

[0003] The first function of a maintenance grounding wire is to prevent electric shock accidents. In power systems, voltages and currents are high, and an accidental electric shock can cause an accident, endangering the lives of workers. Maintenance grounding wires are designed to address this problem by transferring electrical charges from the equipment to the ground, thereby ensuring worker safety. The second function is to ensure the electrical safety of the equipment. During the maintenance and repair of substation equipment, personnel must touch the equipment's electrical components, including high-voltage and high-temperature components. By transferring electrical charges from the equipment to the ground, maintenance grounding wires remove surface charge accumulation, reducing the risk of electric shock for maintenance personnel and ensuring the electrical safety of the equipment. The third function is to protect the environment. During maintenance of substation equipment, if the charges are not transferred to the ground, they will flow into the environment, causing environmental pollution. By transferring the charges to the ground, maintenance grounding wires can protect the environment and reduce the risk of environmental pollution. Existing grounding wires are generally divided into two types: hand-held grounding wires and flat-end rotary grounding wires.

[0004] A grounding wire with a rotatable grounding clamp, published as CN208820073U, was retrieved. The grounding wire includes a grounding clamp and an insulating rod. The grounding clamp is mounted on the upper end of the insulating rod. The grounding clamp is rotated to clamp the busbar, thereby connecting the grounding wire to the busbar and ensuring safety during equipment maintenance.

[0005] However, when the grounding wire is in use, due to its limited length, it is difficult to clamp the busbar at a higher position. When fixing it, the existing telescopic self-locking mechanism is used as the external driving force for clamping. Most of them need to be charged or connected to a power source, resulting in high costs and inconvenience in use.

[0006] Therefore, it is urgent to design a kind of automatic telescopic grounding wire to solve the above problems. Utility Model Content

[0007] In view of the problems that the existing grounding wire cannot be telescoped according to different inspection heights, and the use of the existing telescopic self-locking mechanism as a clamping component leads to high cost and inconvenience in use, the utility model provides an automatically telescopic grounding wire, including a grounding wire clamp composed of a clamp body one and a clamp body two and an insulating rod. The insulating rod is a telescopic structure, which is convenient for storage and transportation when not in use, and can be extended when in use. The driving rod is driven to rotate by the insulating rod, and the driving rod drives the driving mechanism to move, thereby facilitating the clamp body one and the clamp body two to clamp the busbar.

[0008] The core technical idea of ​​the present invention is: based on considerations of storage and transportation, and taking into account the problem of insufficient length during use, the insulating rod is set to a retractable structure to solve the problem of insufficient length during storage, transportation and use. At the same time, the grounding wire clamp is set to a structure consisting of a clamp body one and a clamp body two, which is convenient for clamping the busbar in different states.

[0009] In order to achieve the above purpose, the technical solutions adopted by this utility model are as follows:

[0010] An automatically retractable grounding wire comprises a grounding wire clamp and an insulating rod. The grounding wire clamp comprises a first clamp body and a second clamp body that are adapted to each other. The first clamp body and the second clamp body are adapted to the driving rod through a driving mechanism. The driving rod penetrates into the insulating rod and is adapted to the insulating rod. The insulating rod is arranged at the lower end of the driving mechanism.

[0011] Preferably, the driving mechanism comprises:

[0012] Two movable rods, one end of which is connected to the corresponding turbine, and the other end of which is connected to the first clamping body and the second clamping body respectively;

[0013] Two turbines are rotatably mounted in the mounting sleeve and symmetrically meshed on both sides of the driving rod;

[0014] The mounting sleeve is arranged on the top of the insulating rod, and a grounding wire is arranged on the mounting sleeve.

[0015] Preferably, the insulating rod comprises:

[0016] The insulating sleeve rod has a first slide groove on both sides and a circular slide groove connected to the first slide groove on the bottom;

[0017] The insulating plug rod is movably inserted in the insulating sleeve rod, and a slider 1 and a slider 2 are respectively provided on both sides of the insulating plug rod. The slider 1 is respectively matched with the slide groove 1 and the circular slide groove, and the slider 2 is matched with the driving rod.

[0018] Preferably, the drive rod comprises:

[0019] A worm gear meshes with the two worm gears and is disposed in the mounting sleeve;

[0020] The rotating rod is formed integrally with the worm, and a second sliding groove matched with the second sliding block is provided on the body of the rotating rod.

[0021] Preferably, a limiting piece is movably provided on the outer side of the insulating sleeve rod, the limiting piece is threadedly connected to the insulating sleeve rod, and the limiting piece is adapted to the insulating plug rod.

[0022] The beneficial effects of the utility model are as follows: the utility model discloses an automatic retractable grounding wire. Compared with the prior art, the improvements of the utility model are:

[0023] (1) The utility model solves the problem that the traditional grounding wire can only clamp the busbar in the horizontal direction by setting the grounding wire clamp as a split structure so that it can clamp the busbar in different directions.

[0024] (2) The utility model solves the problem of insufficient length when clamping a busbar at a higher position during use by setting the insulating rod to be telescopic.

[0025] (3) The utility model further enhances the clamping force of the grounding wire clamp on the busbar by setting a limiter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a cross-sectional view of the grounding wire of the utility model;

[0027] Figure 2 This is the front view of the driving machine of the utility model;

[0028] Figure 3 This is an enlarged view of part A of the utility model;

[0029] Figure 4 This is a schematic diagram of the installation of the limiter of the utility model;

[0030] Among them: 1. Grounding wire clamp; 101. Clamp body 1; 102. Clamp body 2; 2. Driving mechanism; 201. Moving rod group; 202. Turbine; 203. Mounting sleeve; 3. Insulating rod; 301. Insulating sleeve rod; 301-1. Slide groove 1; 301-2. Circular slide groove; 302. Insulating plug rod; 302-1. Slider 1; 302-2. Slider 2; 4. Driving rod; 401. Worm; 402. Rotating rod; 402-1. Slide groove 2; 5. Limiting piece. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Example:

[0033] Refer to the attached Figure 1-4The illustrated embodiment of an automatically retractable grounding wire comprises a grounding wire clamp 1 and an insulating rod 3. The grounding wire clamp 1 comprises a matching clamp body 101 and a matching clamp body 102. The clamp bodies 101 and 102 are adapted to a driving rod 4 via a driving mechanism 2. The driving rod 4 penetrates into and mates with the insulating rod 3, which is disposed at the lower end of the driving mechanism 2. During use, the insulating rod 3 drives the driving rod 4 to rotate, which in turn drives the clamp bodies 101 and 102 to open and close, thereby clamping the busbar and completing the connection between the grounding wire and the busbar.

[0034] Specifically, the drive mechanism 2 includes two moving rods 201, two turbines 202, and a mounting sleeve 203. One end of the two moving rods 201 is fixedly connected to the corresponding turbine 202, and the other end is fixedly connected to the corresponding clamp body 101 and clamp body 2 102. The two turbines 202 are rotatably mounted within the mounting sleeve 203 and symmetrically engage with the two sides of the drive rod 4. The mounting sleeve 203 is arranged on the top of the insulating rod 3 and is provided with a grounding wire 203-1. The two sets of moving rods 201 and the two turbines 202 are in a corresponding relationship.

[0035] When in use, the turbine 202 rotates to drive the two moving rods 201 to rotate, so that the clamping body 101 and the clamping body 2 102 are opened and closed, thereby clamping the busbar;

[0036] The insulating rod 3 is a retractable structure. Specifically, the insulating rod 3 includes an insulating sleeve rod 301 and an insulating plug rod 302. The insulating plug rod 302 is movably inserted into the insulating sleeve rod 301 and can be freely extended and retracted within the insulating sleeve rod 301 to increase the length of the insulating sleeve rod 301. The insulating sleeve rod 301 is fixedly connected to the mounting sleeve 203.

[0037] The specific structure for achieving free extension and retraction of the insulating rod 302 within the insulating sleeve 301 to increase the length of the insulating sleeve 301 is as follows: a sliding groove 301-1 is formed on both sides of the insulating sleeve 301, and a slider 302-1 is provided on the insulating rod 302 for use with the sliding groove 301-1. The slider 302-1 slides in the sliding groove 301-1 to achieve free extension and retraction of the insulating rod 302 within the insulating sleeve 301;

[0038] In order to achieve the purpose of the insulating rod 3 driving the driving rod 4 to rotate, a circular slide 301-2 is opened at the bottom of the insulating sleeve rod 301 and connected to the slide 1 301-1. At the same time, the circular slide 301-2 is adapted to the slider 1 302-1. The insulating plug rod 302 is provided with a slider 2 302-2 used in conjunction with the driving rod 4.

[0039] Specifically, the driving rod 4 includes an integrally formed worm 401 and a rotating rod 402. The worm 401 is engaged with both turbines 202 and is disposed within the mounting sleeve 203. The rotating rod 402 is provided with a second slide groove 402-1 adapted to the second slider 302-2.

[0040] When in use, when the slider 1 302-1 slides into the circular slide 301-2 through the slide groove 1 301-1, the synchronous slider 2 302-2 also moves down in the slide groove 2 402-1. After the slider 1 302-1 slides into the circular slide groove 301-2, the insulating plug 302 is rotated. At this time, the slider 1 302-1 rotates in the circular slide groove 301-2. Under the action of the slider 2 302-2 and the slide groove 2 402-1, the insulating plug 302 drives the rotating rod 402 to rotate, and the rotating rod 402 drives the worm 401 to rotate. The worm 401 drives the two turbines 202 to rotate synchronously in different directions. The rotation of the two turbines 202 drives the moving rod 201 to rotate, and the moving rod 201 drives its corresponding clamping body 101 and clamping body 2 102 to rotate, thereby realizing the closing and opening of the clamping body 101 and clamping body 2 102.

[0041] Considering that after the first and second clamping bodies 101 and 102 clamp the busbar, they are prone to fall off the busbar under the action of gravity due to the lack of a positioning device, a limiting member 5 is provided to facilitate positioning of the insulating sleeve rod 301 and the insulating plug rod 302, thereby positioning the first and second clamping bodies 101 and 102, and further increasing the stability of the first and second clamping bodies 101 and 102 in clamping the busbar;

[0042] Specifically, the limiting member 5 is movably inserted on the outside of the insulating sleeve 301 and is threadedly connected to the insulating sleeve 301, and is used in conjunction with the insulating plug 302. Preferably, the limiting member 5 is a bolt. When the limiting member 5 is rotated, the limiting member 5 enters the insulating sleeve 301, and the end of the limiting member 5 is close to the outer wall of the insulating plug 302, and then tightly abuts against the outer wall of the insulating plug 302, thereby achieving the positioning of the insulating sleeve 301 and the insulating plug 302.

[0043] The principle and process of using the automatic retractable grounding wire of the preferred embodiment are as follows: when it is necessary to inspect and repair the busbar at a higher position, the insulating rod 3 is first extended to facilitate clamping the busbar at a higher position. Specifically, the insulating plug rod 302 is pulled to make the insulating plug rod 302 move downward relative to the insulating sleeve rod 301. At this time, the slider 1 302-1 slides down in the slide groove 1 301-1, and the slider 2 302-2 moves down along the slide groove 2 402-1. After the slider 1 302-1 slides into the circular slide groove 301-2, the insulating plug rod 302 is rotated, and the slider 1 302-1 rotates in the circular slide groove 301-2. At the same time, the insulating plug rod 302 drives the rotating rod 402 to rotate synchronously, and the rotating rod 402 drives the worm 401 to rotate, and the worm 401 drives the two turbines 20 2 rotate synchronously, the two turbines 202 rotate to drive the moving rod 201 to rotate, and the moving rod 201 drives its corresponding clamp body 101 and clamp body 2 102 to rotate, thereby realizing the closing and opening of clamp body 101 and clamp body 2 102. When clamp body 101 and clamp body 2 102 are closed, the busbar is clamped in the enclosed space formed by clamp body 101 and clamp body 2 102, and then the limiter 5 is rotated. The limiter 5 slowly enters the insulating sleeve rod 301 and finally tightly abuts against the outer wall of the insulating plug rod 302 to realize the positioning of the insulating sleeve rod 301 and the insulating plug rod 302, thereby realizing the clamping positioning of clamp body 101 and clamp body 2 102, making it more firmly clamped to the busbar, and then the grounding wire 203-1 is inserted into the ground.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An automatically retractable grounding wire, comprising a grounding wire clamp (1) and an insulating rod (3), characterized in that: The grounding wire clamp (1) comprises a first clamp body (101) and a second clamp body (102) adapted to each other. The first clamp body (101) and the second clamp body (102) are adapted to a driving rod (4) via a driving mechanism (2). The driving rod (4) penetrates into an insulating rod (3) and is adapted to the insulating rod (3). The insulating rod (3) is arranged at the lower end of the driving mechanism (2).

2. The automatic retractable grounding wire according to claim 1, characterized in that: The driving mechanism (2) comprises: Two movable rods (201), one end of which is connected to the corresponding turbine (202), and the other end of which is connected to the first clamp (101) and the second clamp (102); Two turbines (202) are rotatably mounted in the mounting sleeve (203) and symmetrically engaged on both sides of the driving rod (4); The mounting sleeve (203) is arranged on the top of the insulating rod (3), and a grounding wire (203-1) is arranged on the mounting sleeve (203).

3. The automatic retractable grounding wire according to claim 2, characterized in that: The insulating rod (3) comprises: The insulating sleeve rod (301) has a first slide groove (301-1) formed on both sides, and a circular slide groove (301-2) in communication with the first slide groove (301-1) formed on the bottom; The insulating plug rod (302) is movably inserted into the insulating sleeve rod (301), and a slider 1 (302-1) and a slider 2 (302-2) are respectively provided on both sides of the insulating plug rod (302), the slider 1 (302-1) is respectively adapted to the slide groove 1 (301-1) and the circular slide groove (301-2), and the slider 2 (302-2) is adapted to the driving rod (4).

4. The automatic retractable grounding wire according to claim 3, characterized in that: The driving rod (4) comprises: A worm (401) meshing with the two turbines (202) and disposed in a mounting sleeve (203); The rotating rod (402) is integrally formed with the worm (401), and a second sliding groove (402-1) adapted to the second sliding block (302-2) is provided on the body of the rotating rod (402).

5. The automatic retractable grounding wire according to claim 3, characterized in that: A limiting member (5) is movably provided on the outside of the insulating sleeve rod (301), the limiting member (5) is threadedly connected to the insulating sleeve rod (301), and the limiting member (5) is adapted to the insulating plug rod (302).

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