Circuit breaker static contact installation device

Abstract

The utility model relates to the field of circuit breaker installation, in particular to a circuit breaker static contact installation device. The device comprises a placing seat and a crimping assembly. The inner side of the upper portion of the placing base is provided with an annular placing groove, and the lower portion of the placing base is provided with an installation channel communicated with the placing groove. The crimping assemblies are detachably connected to the placing seat, are uniformly arranged around the placing groove, and comprise pressing sheets forming crimping spaces with the inner wall of the placing groove, and the pressing sheets are located on the inner side of the mounting channel. According to the utility model, the contact finger sheet can be pressed, and the shielding cover, the contact finger sheet and the spring are integrally mounted on the static contact seat after being mounted, so that the mounting difficulty is reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of circuit breaker installation, in particular to a static contact installation device for a circuit breaker. Background Art

[0002] Since the practical application of GIS (Gas Insulated Switchgear) equipment in the 1960s of the 20th century, it has been widely used all over the world. Its advantages include compact structure, small floor area, high reliability, flexible configuration, convenient installation, strong safety, strong environmental adaptability, etc., and the maintenance workload is very small. GIS consists of a circuit breaker, a disconnector, an earthing switch, an instrument transformer, a lightning arrester, a busbar, a connecting piece, an outgoing terminal, etc. Among them, the high-voltage circuit breaker has the ability to break and close normal or fault current. The circuit breaker generally consists of a moving contact, a static contact, a housing, an operating mechanism, etc. The quality of the static contact installation is directly related to the performance and quality of the circuit breaker.

[0003] The static contact of the circuit breaker consists of a shielding cover, finger pieces, springs, a static contact seat, etc. At the present stage, after the static contact is docked with the static contact seat, the finger pieces are installed one by one in the limiting grooves of the shielding cover and the static contact seat. The finger pieces are provided with contact pressure by springs and are annularly distributed in the limiting groove of the shielding cover. Due to the small gap of the limiting groove and the large operation difficulty, the finger pieces often pop out and skew due to the spring force, and the installation efficiency is very low. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the background art, and provide a static contact installation device for a circuit breaker, which can press the finger pieces and be integrally installed on the static contact seat after the shielding cover, the finger pieces and the springs are installed, reducing the installation difficulty and improving the assembly efficiency.

[0005] The technical solution of the utility model is a static contact installation device for a circuit breaker, including a placement seat and a crimping component; an inner side of the upper part of the placement seat has an annular placement groove, and a lower part has an installation channel axially penetrating and communicating with the placement groove; the crimping component is detachably connected to the placement seat, and a plurality of groups are evenly arranged around the placement groove, including a pressing piece forming a crimping space between the inner wall of the placement groove, and the pressing piece is located inside the installation channel.

[0006] Preferably, the bottom of the placement groove is a plane, and the peripheral wall of the groove is an annular surface.

[0007] Preferably, the lower part of the placement seat has a through hole penetrating in the radial direction, and a plurality of the through holes are evenly arranged around the central axis of the placement groove.

[0008] Preferably, the crimping component further includes a screw rod penetrating through the through hole, and the screw rod is threadedly connected with the pressing piece.

[0009] Preferably, in the same group of crimping components, a plurality of screws are arranged side by side vertically, and a corresponding plurality of through holes are provided.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] The utility model can press the finger piece through the crimping component, and after the shielding cover, the finger piece and the spring are installed, the whole is installed on the static contact seat, reducing the installation difficulty and improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the embodiment of the utility model applied to the assembly of the static contact;

[0013] Figure 2 is a schematic structural diagram of assembling the static contact onto the static contact seat.

[0014] Reference numerals: 1, placement seat; 101, placement groove; 2, pressing piece; 3, screw; 4, shielding cover; 401, card slot; 402, mounting hole; 5, finger piece; 6, spring; 7, static contact seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] As Figure 1 and Figure 2 shown, a static contact installation device for a circuit breaker proposed in this embodiment includes a placement seat 1 and a crimping component.

[0016] The inner side of the upper part of the placement seat 1 has an annular placement groove 101. The bottom of the placement groove 101 is a plane, and the circumferential wall of the groove is an annular surface. The shielding cover 4 is placed in the placement groove 101. The shielding cover 4 abuts against the bottom of the placement groove 101, and the outer circumference contacts the circumferential wall of the placement groove 101. The lower part of the placement seat 1 has an installation channel that penetrates axially and communicates with the placement groove 101. The lower part of the placement seat 1 has through holes that penetrate radially. A plurality of through holes are evenly arranged around the central axis of the placement groove 101.

[0017] The crimping component is detachably connected to the placement seat 1 and is evenly arranged in multiple groups around the placement groove 101. The crimping component includes a pressing piece 2 that forms a crimping space with the inner wall of the placement groove 101 and a screw 3 that penetrates the through hole. The pressing piece 2 is located inside the installation channel, and the screw 3 is threadedly connected to the pressing piece 2. In the same group of crimping components, a plurality of screws 3 are arranged side by side vertically, and a corresponding plurality of through holes are provided, which can be connected at multiple points, improving the connection reliability and ensuring the stability when the pressing piece 2 presses the finger piece 5.

[0018] During installation, first place the shielding cover 4 into the placement groove 101 of the placement seat 1. Then, install the spring 6 into the installation groove of the finger contact piece 5, and place the finger contact piece 5 into the card slot 401 of the shielding cover 4, so that the spring 6 abuts against the inner wall of the card slot 401 of the shielding cover 4. Next, press the pressing piece 2 against the finger contact piece 5, pass the screw rod 3 through the through hole of the placement seat 1, and thread-connect the screw rod 3 with the pressing piece 2, so that the pressing piece 2 stably presses the finger contact piece 5. By such an operation, multiple finger contact pieces 5 and springs 6 are pressed against the inner side of the shielding cover 4 through multiple crimping assemblies. Finally, dock the shielding cover 4, the finger contact piece 5, the spring 6 and this installation device with the static contact seat 7. Specifically, dock the shielding cover 4 with the static contact seat 7, the finger contact piece 5 is stuck between the shielding cover 4 and the static contact seat 7, and use screws to connect the shielding cover 4 with the static contact seat 7 at the installation hole 402 of the shielding cover 4. Then, loosen the screw rod 3, remove the crimping assembly, and disassemble the tooling.

[0019] In this embodiment, the finger contact piece 5 can be pressed by the crimping assembly, and after the shielding cover 4, the finger contact piece 5 and the spring 6 are installed, they are integrally installed on the static contact seat 7, reducing the installation difficulty and improving the assembly efficiency.

[0020] The above has described in detail the embodiments of the present invention in conjunction with the drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art to which the present invention pertains.

Claims

1. A circuit breaker static contact mounting device, characterized in that: include: A mounting seat (1) having an annular mounting groove (101) on the inner side of the upper portion and a mounting channel extending axially through the lower portion and communicating with the mounting groove (101); The crimping assembly is detachably connected to the mounting seat (1), and multiple groups are evenly arranged around the mounting groove (101), including a pressing sheet (2) that forms a crimping space with the inner wall of the mounting groove (101), and the pressing sheet (2) is located on the inner side of the installation channel.

2. A circuit breaker static contact installation device according to claim 1, characterized in that: The bottom of the placement groove (101) is a plane, and the peripheral wall of the groove is a circular ring surface.

3. A circuit breaker static contact installation device according to claim 1, characterized in that: The lower part of the placement seat (1) has a through hole which penetrates in the radial direction, and a plurality of through holes are evenly arranged around the central axis of the placement groove (101).

4. A circuit breaker static contact mounting device according to claim 3, characterized in that: The crimping assembly also includes a screw rod (3) penetrating the through hole, and the screw rod (3) is threadedly connected to the pressing sheet (2).

5. A circuit breaker static contact mounting device according to claim 4, characterized in that: In the same group of crimping assemblies, a plurality of screw rods (3) are vertically arranged side by side, and a plurality of through holes are correspondingly arranged.

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