CN203398345U - Improved ground wire - Google Patents

Abstract

Provided is an improved ground wire. The improved ground wire comprises a wire clamp, an insulation rod and a ground wire and also comprises a bidirectional connecting piece, wherein the wire clamp is connected with the insulation rod through the bidirectional connecting piece, and the bidirectional connecting piece is movably connected with the wire clamp and the insulation rod in a rotating manner respectively. According to the improved ground wire, the bidirectional connecting piece is utilized so that the wire clamp and the insulation rod can realize angle rotation, and under the condition that a bus and a drainage wire are vertical, the insulation rod and the ground wire are enabled to be vertical to the ground, so that the stress distribution is improved, the wire clamp does not easily fallen off, the operation of the working personnel is facilitated, and the operation time and operation strength are reduced. The improved ground wire is also applied to such application occasions of a busbar, soft connection, a steel-cored aluminum strand wire, irregular wiring and the like.

Description

An improved ground wire

technical field

The utility model belongs to the mechanical field, relates to the installation and maintenance of electric equipment, in particular to an improved ground wire.

Background technique

For circuit breakers, isolating switches and other primary equipment in some substations, due to the structural relationship of the equipment in the substation, the connection and drainage lines between the circuit breaker and the busbar switch and other equipment are connected at 90 degrees, which is extremely inconvenient to install the grounding wire.

In the existing grounding wire, since the clamp and the insulating rod are fixedly mortised, the direction of the insulating rod and the grounding wire are consistent, so the angle between the clamp and the grounding wire is fixed. After the grounding wire is installed, because there is no firm contact and fixed relationship between the clamp and the drain wire, plus the weight of the grounding wire itself and the weight of the insulating rod, the installed grounding wire is easy to fall off. In order to ensure that the grounding wire is installed, It is not easy to fall off. The insulating rods are cross-stacked on the circuit breaker frame, but the grounding wire will still fall off under the impact of external force or the operating power of the circuit breaker.

Utility model content

In order to overcome the technical defect that the angle between the connecting clamp and the insulating rod in the existing grounding wire cannot be adjusted, and the grounding wire is easy to fall off in the application occasion where the bus bar and the drain wire are vertical, the utility model provides an improved grounding wire.

An improved grounding wire according to the utility model includes a wire clip, an insulating rod and a grounding wire, and is characterized in that it also includes a two-way connector, the wire clip and the insulating rod are connected by a two-way connector, and the two-way connector Both the wire clip and the insulating rod are rotatable and movable.

Preferably, the upper end of the two-way connector has a cylindrical cavity, and the cylindrical cavity has internal threads, and the connection end between the clamp and the two-way connector is a threaded column that fits in a clearance with the cylindrical cavity, The external thread of the threaded post is in shape fit with the internal thread.

Specifically, the ground wire is connected to the connecting end of the clamp and the bidirectional connector.

Preferably, the lower end of the two-way connector has a rectangular groove, and the connecting end of the insulating rod and the two-way connector has a plugboard that fits into the rectangular groove, and the same bolts are provided on the sidewall of the plugboard and the rectangular groove hole, and the insulating rod is connected to the two-way connector by bolts.

Preferably, the connecting end of the insulating rod and the two-way connector and its inserting plate are made of stainless steel.

Preferably, the two-way connector is made of stainless steel.

The improved grounding wire described in the utility model is adopted, and the two-way connector is used to make the terminal clamp and the insulating rod realize angular rotation, and the insulating rod and the grounding wire can be perpendicular to the ground when the bus bar and the drainage wire are vertical, thereby improving the wiring The force distribution of the clamp makes it difficult for the clamp to fall off, which is convenient for the operator to operate, shortens the operation time and reduces the operation intensity. The utility model is also suitable for application occasions such as bus bars, soft connections, steel-cored aluminum stranded wires, and irregular connections.

Description of drawings

Fig. 1 shows a schematic diagram of a specific embodiment of the present invention.

The names of reference signs in each figure are: 1-insulating rod 2-clamp 3-ground wire 4-two-way connector 5-plug board 6-connecting end of insulating rod and two-way connector.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described in further detail.

As shown in Figure 1, a specific embodiment of the utility model is provided, including a wire clip 2, an insulating rod 1 and a ground wire 3, and also includes a two-way connector 4, and the wire clip and the insulating rod are connected through a two-way connector. The two-way connector is rotatably connected to the wire clip and the insulating rod.

The two-way connector is used to connect the insulating rod and the clamp, so that the clamp and the two-way connector can rotate at an angle. At the same time, the two-way connector and the insulating rod are also rotatably connected. The angle can be changed in a wide range, and it is suitable for use when the bus bar and the drain wire are vertical, so that the wire clamp clamps the drain wire in a horizontal direction, and at the same time, the insulating rod and the ground wire are perpendicular to the ground, which improves the force distribution and makes the The wire clip is not easy to fall off.

Various ways can be adopted for the rotary connection of the two-way connector, the insulating rod and the clamp, and the utility model provides a rotary connection realization mode that can be implemented independently for the two connections respectively.

For the connection mode between the two-way connector and the clamp, the upper end of the two-way connector has a cylindrical concave cavity, and there is an internal thread in the cylindrical cavity, and the connection end of the clamp and the two-way connector is connected to the cylindrical concave cavity. The cavity forms a threaded column with clearance fit, and the external thread of the threaded column is in shape fit with the internal thread. The cylindrical concave cavity and threaded column with internal and external threads are used to enable the two-way connector and the clamp to adjust the angle stably. After adjustment, the angle is not easy to change, and the connection method of the threaded column has high connection strength and reliable connection. The ground wire can be connected to the connecting end of the clamp and the bidirectional connector.

For the connection mode between the two-way connector and the insulating rod, the lower end of the two-way connector has a rectangular groove, and the connecting end 6 of the insulating rod and the two-way connector has a plug-in plate 5 that matches the rectangular groove, and the plug-in board and The side wall of the rectangular groove is provided with the same bolt hole, and the insulating rod is connected with the two-way connecting piece through bolts. The rectangular groove and the plug-in plate are used to connect, and the rotation angle of the insulating rod and the two-way connector can be adjusted by adjusting the tightness of the bolt. This way of adjusting the angle value is more accurate, because the rotation direction is not the same as the aforementioned method of adjusting the angle of the threaded column. direction, so the two can be used together to achieve a large range of angle adjustments in three-dimensional directions.

Preferably, the connecting end of the insulating rod and the two-way connector and its inserting plate are made of stainless steel.

Preferably, the two-way connector is made of stainless steel.

The use of stainless steel for the above components improves the mechanical strength of the rotating part and enhances the service life.

The improved grounding wire described in the utility model is adopted, and the two-way connector is used to make the terminal clamp and the insulating rod realize angular rotation, and the insulating rod and the grounding wire can be perpendicular to the ground when the bus bar and the drainage wire are vertical, thereby improving the wiring The force distribution of the clamp makes it difficult for the clamp to fall off, which is convenient for the operator to operate, shortens the operation time and reduces the operation intensity. The utility model is also suitable for application occasions such as bus bars, soft connections, steel-cored aluminum stranded wires, and irregular connections.

The foregoing are various preferred embodiments of the present utility model. If the preferred implementations in each preferred embodiment are not obviously self-contradictory or based on a certain preferred implementation, each preferred implementation can be arbitrarily superimposed and combined. The specific parameters in the described embodiments and the embodiments are only for clearly expressing the utility model verification process of the utility model inventor, and are not used to limit the patent protection scope of the utility model, and the patent protection scope of the utility model is still defined by its claims. The book shall prevail, and all equivalent structural changes made by using the description of the utility model and the contents of the accompanying drawings shall be included in the protection scope of the utility model in the same way. the

Claims (6)

1. a modified model earth connection, comprise wire clamp (2), insulating bar (1) and ground wire (3), it is characterized in that, also comprise connection arrangement (4), described wire clamp (2) is connected by connection arrangement (4) with insulating bar (1), and described connection arrangement (4) is rotatable flexible connection with wire clamp (2) and insulating bar (1).

2. modified model earth connection as claimed in claim 1, it is characterized in that, described connection arrangement (4) upper end has reentrant cylindrical cavity, in described reentrant cylindrical cavity, there is internal thread, described wire clamp (2) is with the link of connection arrangement (4) for to become the threaded post of matched in clearance with reentrant cylindrical cavity, the external screw thread of described threaded post coordinates with described internal screw thread form.

3. modified model earth connection as claimed in claim 2, is characterized in that, described ground wire (3) is connected to the link of wire clamp and connection arrangement.

4. modified model earth connection as claimed in claim 1 or 2, it is characterized in that, there is rectangular recess described connection arrangement lower end, described insulating bar has with the link (6) of connection arrangement the plate (5) coordinating with rectangular recess, described plate (5) and rectangular recess sidewall have identical bolt hole, and described insulating bar and connection arrangement are bolted.

5. modified model earth connection as claimed in claim 4, is characterized in that, the link of described insulating bar and connection arrangement (6) and plate (5) thereof are stainless steel and make.

6. modified model earth connection as claimed in claim 1, is characterized in that, described connection arrangement (4) is made for stainless steel.

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