阅读说明：本技术 接地线夹和接地装置 (Grounding wire clamp and grounding device ) 是由 吴强 魏福庆 陈家辉 于 2020-12-25 设计创作，主要内容包括：本发明涉及一种接地线夹和接地装置。接地线夹包括夹线器可调承载体、与夹线器可调承载体转动连接的夹线器主体、与夹线器主体对应设置并形成倾斜夹口的压块、与夹线器可调承载体相连接并能够弯折的弯折组件、与压块相连接并能够调节压块位置的调节组件。弯折组件包括滑动套筒承载体、可调压板连接体、与滑动套筒承载体相连接的第一可调压板、与可调压板连接体相连接的第二可调压板,第一可调压板和第二可调压板转动连接。调节组件包括与压块固定连接的旋紧丝杆、一端与旋紧丝杆相连接的万向节、连接在万向节另一端的脱卸轴头。接地装置包括前述的接地线夹和绝缘操作杆。本发明能够安全、可靠、灵活地实现接地挂接,保证作业安全,保障作业效率。(The invention relates to a grounding wire clamp and a grounding device. The earthing clamp comprises a wire clamp adjustable bearing body, a wire clamp main body connected with the wire clamp adjustable bearing body in a rotating mode, a pressing block arranged corresponding to the wire clamp main body and forming an inclined clamping opening, a bending assembly connected with the wire clamp adjustable bearing body and capable of being bent, and an adjusting assembly connected with the pressing block and capable of adjusting the position of the pressing block. The bending component comprises a sliding sleeve bearing body, an adjustable pressure plate connector, a first adjustable pressure plate connected with the sliding sleeve bearing body, and a second adjustable pressure plate connected with the adjustable pressure plate connector, and the first adjustable pressure plate and the second adjustable pressure plate are rotatably connected. The adjusting assembly comprises a screwing screw rod fixedly connected with the pressing block, a universal joint with one end connected with the screwing screw rod, and a detachable shaft head connected to the other end of the universal joint. The grounding device comprises the grounding wire clamp and the insulating operating rod. The invention can safely, reliably and flexibly realize grounding hanging, ensure the operation safety and ensure the operation efficiency.)

1. The utility model provides a ground clamp which characterized in that: earthing clamp include the adjustable supporting body of wire holder, with the adjustable supporting body of wire holder rotates the wire holder main part of connecting, with the wire holder main part corresponds the setting and forms the briquetting of slope clamp mouth, with the adjustable supporting body of wire holder is connected and the bending assembly that can buckle, with the briquetting is connected and can adjust the adjusting part of briquetting position.

2. A ground clamp according to claim 1, characterized in that: the bending component comprises a sliding sleeve bearing body connected with the adjustable bearing body of the wire clamp, an adjustable pressure plate connector arranged corresponding to the sliding sleeve bearing body, a first adjustable pressure plate connected with the sliding sleeve bearing body, and a second adjustable pressure plate connected with the adjustable pressure plate connector, wherein the first adjustable pressure plate is rotatably connected with the second adjustable pressure plate.

3. A ground clamp according to claim 2, characterized in that: two groups of first adjustable pressure plates and second adjustable pressure plates are arranged between the sliding sleeve bearing body and the adjustable pressure plate connecting body.

4. A ground clamp according to claim 2, characterized in that: the bending assembly further comprises an angle fine-adjustment module for fine-adjusting the angle formed by the first adjustable pressure plate and the second adjustable pressure plate.

5. A ground clamp according to claim 1, characterized in that: the adjusting assembly comprises a screwing screw rod, a universal joint and a detaching shaft head, wherein the screwing screw rod is fixedly connected with the pressing block and is in threaded connection with the adjustable supporting body of the wire clamp and/or the main body of the wire clamp, one end of the screwing screw rod is connected with the screwing screw rod and can rotate along with the bending of the bending assembly, the detaching shaft head is connected to the other end of the universal joint, the universal joint is arranged in the bending assembly in a penetrating mode, and the adjustable supporting body of the wire clamp and the detaching shaft head are respectively located at two ends of the bending assembly.

6. A ground clamp according to claim 1, characterized in that: the inclination angle of the clamping opening is 45 degrees.

7. An earthing device, characterized in that: the grounding device comprises a grounding clamp as claimed in any one of claims 1 to 6, an insulated operating rod connected with the grounding clamp.

Technical Field

The invention belongs to the field of electric power overhaul devices, and particularly relates to a grounding wire clamp and a grounding device.

Background

In the existing 110kV and 35kV voltage class transformer substation of the power system, in order to check and evaluate the state performance of the electrical equipment operated by the transformer substation and ensure the safe and stable operation of the electrical equipment, power failure overhaul or test needs to be carried out on the related electrical equipment of the transformer substation in a planned way. In order to prevent the problems that the power-cut maintenance equipment suddenly comes, is transmitted by mistake, has residual charges, induces the charges to generate induced charges and the like in the maintenance or test process, and causes unpredictable damage to the safety of maintenance, testing personnel, instruments and equipment, the power-cut maintenance equipment must be reliably grounded in the maintenance or test process, so that the power-cut maintenance equipment always keeps the ground potential.

At present, the grounding modes adopted by the power system are generally two types: firstly, the ground connection of electrical equipment can be realized by closing the grounding switch of each incoming call side of the maintenance equipment, and secondly, for electrical equipment without grounding switches, such as a capacitor bank, a grounding transformer and a main transformer bus bridge, the ground connection is realized by hanging a grounding wire.

However, there are problems or technical difficulties for the operators to operate daily:

for the capacitor bank, the grounding transformer and other equipment in the transformer substation, the equipment is usually closed equipment, and the metal shell or a net door is adopted around the equipment to isolate the live equipment so as to ensure the operation safety of the equipment. When the grounding wire is hung in power failure maintenance, a metal mesh door is generally required to be opened, and an operator operates the grounding wire insulation operating rod to hang the grounding wire. However, due to the limitation of the capacitor bank, the arrangement of the grounding transformer, the structure of the grounding transformer, the arrangement position of the grounding point and other factors, the problem that the grounding line cannot be normally, reliably and quickly hung by using the grounding line insulating operating rod often occurs in the process of hanging and arranging the grounding line, so that certain potential safety hazards exist.

In order to ensure the safety of switching operation and maintenance test work and improve the efficiency of switching operation and maintenance test work, the grounding wire hanging operation must be completed safely, conveniently and reliably. Therefore, a set of grounding wire hanging operation tool capable of realizing safe, reliable and flexible operation of the grounding wire is very necessary for improving the working efficiency and ensuring the safety of operation, maintenance personnel, instruments and equipment.

Disclosure of Invention

The invention aims to provide a grounding wire clamp which can realize safe, reliable and flexible hanging.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides an earth clamp, including the adjustable supporting body of wire holder, with the adjustable supporting body of wire holder rotates the wire holder main part of connecting, with the wire holder main part corresponds the setting and forms the briquetting that the slope pressed from both sides the mouth, with the adjustable supporting body of wire holder is connected and the bending assembly that can buckle, with the briquetting is connected and can be adjusted the adjusting part of briquetting position.

The bending component comprises a sliding sleeve bearing body connected with the adjustable bearing body of the wire clamp, an adjustable pressure plate connector arranged corresponding to the sliding sleeve bearing body, a first adjustable pressure plate connected with the sliding sleeve bearing body, and a second adjustable pressure plate connected with the adjustable pressure plate connector, wherein the first adjustable pressure plate is rotatably connected with the second adjustable pressure plate.

Two groups of first adjustable pressure plates and second adjustable pressure plates are arranged between the sliding sleeve bearing body and the adjustable pressure plate connecting body.

The bending assembly further comprises an angle fine-adjustment module for fine-adjusting the angle formed by the first adjustable pressure plate and the second adjustable pressure plate.

The adjusting assembly comprises a screwing screw rod, a universal joint and a detaching shaft head, wherein the screwing screw rod is fixedly connected with the pressing block and is in threaded connection with the adjustable supporting body of the wire clamp and/or the main body of the wire clamp, one end of the screwing screw rod is connected with the screwing screw rod and can rotate along with the bending of the bending assembly, the detaching shaft head is connected to the other end of the universal joint, the universal joint is arranged in the bending assembly in a penetrating mode, and the adjustable supporting body of the wire clamp and the detaching shaft head are respectively located at two ends of the bending assembly.

The inclination angle of the clamping opening is 45 degrees.

The invention also provides a grounding device which is based on the grounding wire clamp and is suitable for grounding hanging operation in a narrow space, and the scheme is as follows:

an earthing device comprises the earthing clamp and an insulating operating rod connected with the earthing clamp.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention can safely, reliably and flexibly realize grounding hanging, thereby ensuring the operation safety and the operation efficiency.

Drawings

Fig. 1 is a schematic view of a ground clamp of the present invention.

In the above drawings: 1. a wire gripper body; 2. briquetting; 3. screwing the screw rod; 4. the adjustable supporting body of the wire clamping device; 5. a sliding sleeve carrier; 6. a first adjustable platen; 7. a second adjustable pressure plate; 8. a universal joint; 9. an adjustable pressure plate connector; 10. and (4) detaching the shaft head.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings to which the invention is attached.

The first embodiment is as follows: as shown in the attached figure 1, the ground clamp comprises a clamp adjustable bearing body 4, a clamp main body 1, a pressing block 2, a bending assembly and an adjusting assembly.

The shape of the adjustable supporting body 4 of the wire clamping device is cylindrical, and the main body 1 of the wire clamping device is rotatably connected with the adjustable supporting body 4 of the wire clamping device and is positioned at one end of the adjustable supporting body. The main body 1 of the wire clamper is concave and forms a slope. The pressing block 2 is arranged corresponding to the wire clamping device main body 1, and the pressing block 2 is also provided with an inclined surface, so that the wire clamping device main body 1 and the pressing block 2 form an inclined clamping opening through a pair of inclined surfaces, and the inclined angle of the clamping opening is about 45 degrees. Because the wire clamping device main body 1 is connected with the adjustable wire clamping device bearing body 4 in a rotating mode, the wire clamping device main body 1 can rotate in the horizontal direction relative to the adjustable wire clamping device bearing body 4, and the angle adjustment of the first dimension is achieved. And a dish nut can be arranged on the adjustable supporting body 4 of the wire clamp, and when the main body 1 of the wire clamp rotates to a proper angle relative to the adjustable supporting body 4 of the wire clamp, the dish nut is utilized to lock the relative position of the main body and the adjustable supporting body.

The bending assembly is connected with the adjustable supporting body 4 of the wire clamp, and can be bent in the vertical direction (perpendicular to the direction of a drawing) so as to adjust the angle of the second dimension. In this embodiment, the bending assembly includes a sliding sleeve carrier 5, an adjustable pressing plate connector 9, a first adjustable pressing plate 6 and a second adjustable pressing plate 7, wherein two sets of the first adjustable pressing plate 6 and the second adjustable pressing plate 7 can be provided. The sliding sleeve bearing body 5 is connected with the adjustable bearing body 4 of the wire clamp, the adjustable pressure plate connecting body 9 is arranged corresponding to the sliding sleeve bearing body 5, and the appearance of the sliding sleeve bearing body 5 and the appearance of the adjustable pressure plate connecting body 9 are both approximately cylindrical. The first adjustable pressure plate 6 is connected with the sliding sleeve carrier 5, the second adjustable pressure plate 7 is connected with the adjustable pressure plate connector 9, and the first adjustable pressure plate 6 and the second adjustable pressure plate 7 are rotatably connected. Two groups of first adjustable pressure plates 6 and second adjustable pressure plates 7 are respectively arranged at two axial sides of the sliding sleeve bearing body 5 and the adjustable pressure plate connecting body 9. When the first adjustable pressing plate 6 rotates relative to the second adjustable pressing plate 7, the sliding sleeve bearing body 5 driven by the first adjustable pressing plate 6 and the adjustable pressing plate connecting body 9 driven by the second adjustable pressing plate 7 can be converted from a coaxial state to a non-coaxial state, so that bending is realized, and the bending angle is about 75 degrees. The bending assembly further comprises an angle fine-adjustment module for fine-adjusting the angle formed by the first adjustable pressing plate 6 and the second adjustable pressing plate 7.

The adjusting component is connected with the pressing block 2 and can adjust the position of the pressing block 2. In this embodiment, the adjusting assembly includes a screwing screw rod 3, a universal joint 8 and a detachable shaft head 10. One end of the screw-screwing screw rod 3 is fixedly connected with the pressing block 2, and the screw-screwing screw rod 3 is further in threaded connection with the adjustable supporting body 4 of the wire clamp and/or the wire clamp main body 1, so that the pressing block 2 can be driven to move when the screw-screwing screw rod 3 rotates. The universal joint 8 is arranged in the bending component in a penetrating way, one end of the universal joint penetrates through the sliding sleeve bearing body 5 to be connected with the screw-tightening screw rod 3, and the other end of the universal joint penetrates through the adjustable pressure plate connecting body 9 to be connected with the detaching shaft head 10, so that the adjustable bearing body 4 of the wire clamp and the detaching shaft head 10 are respectively positioned at two ends of the bending component. The universal joint 8 can rotate along with the bending of the bending assembly, and the dismounting shaft head 10 can be utilized to rotate to drive the universal joint 8 to rotate, so that the screwing screw rod 3 is driven to rotate.

The detaching shaft head 10 can be connected with an insulating operating rod, so that the connection of the grounding wire clamp and the insulating operating rod is realized, and a grounding device is formed.

The working principle and the use method of the grounding wire clamp are as follows:

the wire clamping device comprises a wire clamping device body 1 with a 45-degree clamping opening, and a pressing block 2, wherein the pressing block 2 is connected with a universal joint 8 through a screw-tight screw rod, the upper part and the lower part of the universal joint 8 are respectively a sliding sleeve bearing part and an adjustable pressing plate connector 9, the two sides of the universal joint are fixed by adjustable pressing plates (a first adjustable pressing plate 6 and a second adjustable pressing plate 7), the adjustable pressing plates are tightened or loosened by an adjustable angle adjusting fine adjustment module, the bottom of the wire clamping device body 1 is connected with an adjustable bearing body, and the adjustable pressing plate connector 9 is connected with a detachable shaft head 10.

When the insulating operating rod is rotated by hand and inserted into the detaching shaft head 10, the universal joint 8 and the screwing lead screw connected with the universal joint are driven by rotation, so that the pressing block 2 moves upwards, the pressing block 2 is tightly clamped with a busbar or a lead wire to be grounded, otherwise, the pressing block moves downwards, and the busbar or the lead wire is loosened. If the angle of the wire clamp main body 1 needs to be adjusted, the dish nut of the adjustable supporting body 4 of the wire clamp is loosened, the wire clamp main body 1 is enabled to be adjustable in 360 degrees horizontally, meanwhile, the dish nut on the adjustable pressing plate is loosened, the angle fine adjustment module is enabled to release the meshing force, and the wire clamp can be enabled to be adjustable in 75 degrees left and right.

When the grounding wire is used, the angle between the adjustable pressing plate and the angle between the adjustable supporting body 4 of the wire clamping device can be adjusted in advance according to the position of the grounding device required to be grounded, and then the movable jaw of the grounding wire can be controlled to be bitten and loosened by rotating the insulating operation rod, so that the grounding device required to be grounded.

Above-mentioned multi-angle earth clamp improves and innovates on the basis of flat spiral earth connection, compares with other earth connection commonly used and has following advantage:

1. the angle adjusting device is added, and the application range is wide. The fixed angle of the main body 1 of the wire clamping device is 45 degrees, the rotating angle range of the adjustable pressing plate is 0-75 degrees in the left-right direction, and the rotating angle range of the adjustable supporting body 4 of the wire clamping device is 0-360 degrees in the horizontal direction. After the insulation operating rod is rotated to be linked with the adjustable pressing plate and the angle of the adjustable supporting body 4 of the wire clamp, the busbar or the lead in any angle range of the upper hemispherical surface of the horizontal plane can be grounded.

2. The grounding wire clamp has no gear or spring device, does not need to use lubricating oil or other maintenance liquid for maintenance, and can keep dry and clean.

3. The angle adjusting device has simple design thought and convenient and fast operation. The angle adjusting device uses the connecting plate and the rotating shaft, and the angle adjusting can be realized without other tools, so that the labor and the time are saved.

4. The manufacturing or maintenance is simple, and the cost is saved. The used materials are common materials and objects in the market, so that the cost is low; the replacement or the maintenance is convenient and fast, and the practicability is strong.

The flexible multi-angle grounding wire clamp development achievement in the grounding transformer has the advantages of being simple in structure, convenient to operate, high in working efficiency and the like. The grounding wire clamp is applied to the transformer substation, so that the convenience and the safety of the grounding wire hanging operation of the power failure overhaul equipment and the reliability of the grounding wire hanging operation are greatly improved, the working efficiency is improved, the safety of operation operators, repair testers and equipment is ensured, and meanwhile, the grounding wire clamp has wide market prospect and further innovation and improvement possibility.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.