CN212725129U

CN212725129U - High-low voltage isolating switch

Info

Publication number: CN212725129U
Application number: CN202021492240.5U
Authority: CN
Inventors: 王安平
Original assignee: Suzhou Zonghe Electromechanical Equipment Co ltd
Current assignee: Suzhou Zonghe Electromechanical Equipment Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-16
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a high-low voltage isolating switch, which comprises a base, wherein an insulating support is symmetrically and fixedly arranged at the top of the base, a first wiring board and a second wiring board are respectively and fixedly arranged at the top end of the insulating support, a connecting seat is fixedly arranged on the first wiring board, a knife switch is arranged between the first wiring board and the second wiring board, one end of the knife switch is hinged with the connecting seat, a movable contact block is fixedly arranged at the other end of the knife switch, a connecting groove is fixedly arranged on the second wiring board, a fixed contact block is arranged in the inner cavity of the connecting groove, the bottom of the fixed contact block is connected with the bottom of the inner cavity of the connecting groove through a spring, a limit lug is fixedly arranged on the inner wall of the side plate of the connecting groove, a limit groove is arranged at the position corresponding to the limit lug on the two sides of, the stability of its connection is increased, and is more reliable when using.

Description

High-low voltage isolating switch

Technical Field

The utility model relates to a high low pressure isolator belongs to isolator technical field.

Background

The isolating switch is an electrical appliance which is used most in high-voltage switching electrical appliances, has a simple working principle and structure, has high requirements on working reliability due to large usage amount, and has large influence on the design, establishment and safe operation of a substation and a power plant, and has the main function of establishing a reliable insulating gap after switching off, and separating a device or a circuit to be overhauled from a power supply by an obvious disconnection point so as to ensure the safety of maintainers and equipment; in the related technology, the isolating switch is difficult to be switched in place when the moving contact is switched on and off due to the fact that the moving contact is light in weight, the contact area between the static contact and the moving contact is small, and the contact pressure is small, and the hidden danger of power grid accidents caused by poor contact of the isolating switch exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-low voltage isolator lets the stationary contact piece of switch contact with the movable contact piece all the time for electric conductive property is good, increases the stability of its connection, and is more reliable when using, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-low voltage isolator, includes the base, the fixed insulating pillar that is provided with of base top symmetry, there are first wiring board, second wiring board on insulating pillar top fixed mounting respectively, the fixed connecting seat that is provided with on the first wiring board, be provided with the plug-in strip between first wiring board, the second wiring board, plug-in strip one end is articulated with the connecting seat, the fixed movable contact block that is provided with of plug-in strip other end, last fixed spread groove that is provided with on the second wiring board, the spread groove inner chamber is provided with quiet contact block, pass through spring coupling between quiet contact block bottom and the spread groove inner chamber bottom, the fixed spacing lug that is provided with on the spread groove curb plate inner wall, spacing recess has been seted up with spacing lug corresponding position in quiet contact block.

Furthermore, the base cross-section is the type of protruding, just evenly seted up the mounting hole on the base.

Furthermore, first wiring board, second wiring board all install on insulating pillar through fixing bolt, and the junction is provided with insulating rubber pad.

Furthermore, all fixedly provided with the terminal on first wiring board, the second wiring board, the terminal is located the one side of keeping away from connecting seat, spread groove.

Furthermore, the connecting groove side plate is an elastic plate, and the width in the connecting groove is matched with the width of the movable contact block.

Furthermore, the outer surfaces of the first wiring board, the second wiring board and the knife switch are coated with anti-corrosion layers.

The utility model has the advantages that:

1. by arranging the wiring board, the stability of the device is enhanced after the isolating switch is fixedly installed through the base; the structure is simple, the operation is convenient, and the circuit is electrically cut off and closed by adopting a knife switch type structure for switching on and off;

2. move touch multitouch and quiet touch multitouch through setting up, with the plug-in strip downstream for during isolator closing, move touch multitouch can get into in the card goes into the spread groove, and will quiet touch multitouch extrusion downwards, after spacing lug card goes into spacing recess, move touch multitouch fixed in the spread groove, prevent that the switch from being bumped by the mistake and leading to cutting off, and the spring can let quiet touch multitouch contact with moving touch multitouch all the time through elasticity, increases the stability of its connection.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic structural diagram of a high-low voltage isolating switch of the present invention;

fig. 2 is a schematic view of a connection seat structure of a high-low voltage isolation switch of the present invention;

fig. 3 is a schematic view of a base of a high-low voltage isolating switch of the present invention;

reference numbers in the figures: 1. a base; 2. an insulating support; 3. a first wiring board; 4. a second wiring board; 5. a connecting seat; 6. a knife switch; 7. a movable contact block; 8. connecting grooves; 9. a stationary contact block; 10. a spring; 11. a limiting bump; 12. a limiting groove; 13. mounting holes; 14. and (4) binding posts.

Detailed Description

The preferred embodiment of the present invention is described below with reference to the accompanying drawings, which allows the stationary contact block of the switch to be always in contact with the movable contact block, so that the electrical conductivity is good, the stability of the connection is increased, and the present invention is more reliable in use and is not limited to the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-low voltage isolating switch comprises a base 1, wherein insulating support columns 2 are symmetrically and fixedly arranged at the top of the base 1, a first wiring board 3 and a second wiring board 4 are respectively and fixedly arranged at the top ends of the insulating support columns 2, a connecting seat 5 is fixedly arranged on the first wiring board 3, a switch blade 6 is arranged between the first wiring board 3 and the second wiring board 4, and the stability of the device is enhanced after the isolating switch is fixedly arranged through the base 1; the structure is simple, the operation is convenient, the structure of the switch blade 6 is adopted to switch on and off to achieve the electric cutting and closing circuit, one end of the switch blade 6 is hinged with the connecting seat 5, the other end of the switch blade 6 is fixedly provided with a movable contact block 7, the upper part of the second wiring board 4 is fixedly provided with a connecting groove 8, the inner cavity of the connecting groove 8 is provided with a static contact block 9, the bottom of the static contact block 9 is connected with the bottom of the inner cavity of the connecting groove 8 through a spring 10, the inner wall of the side plate of the connecting groove 8 is fixedly provided with a limit lug 11, the two sides of the static contact block 9 are provided with limit grooves 12 corresponding to the limit lug 11, the switch blade 6 is moved downwards, when the isolation is closed, the movable contact block 7 can enter the card and be clamped into the connecting groove 8, the static contact block 9 is extruded downwards, after the limit lug 11 is clamped into the limit groove 12, and the spring 10 can make the static contact block 9 always contact with the movable contact block 7 through the elastic force, thereby increasing the connection stability.

Specifically, as shown in fig. 3, the cross section of the base 1 is in a convex shape, and the base 1 is uniformly provided with mounting holes 13, so that the base 1 can be fixedly mounted conveniently, and the stability of the isolating switch in mounting and use is improved.

Specifically, as shown in fig. 1, first wiring board 3, second wiring board 4 all install on insulating pillar 2 through fixing bolt, and the junction is provided with insulating rubber pad, increase the insulating nature of switch, avoid the phenomenon of electric leakage, all fixedly on first wiring board 3, the second wiring board 4 be provided with terminal 14, terminal 14 is located the one side of keeping away from connecting seat 5, spread groove 8, conveniently is connected wire and wiring board stable, and is more reliable when using.

Specifically, as shown in fig. 2, the side plate of the connecting groove 8 is an elastic plate, the width in the connecting groove 8 is matched with the width of the movable contact block 7, so that the movable contact block 7 is conveniently fixed in the connecting groove 8, the conductivity is good, and the outer surfaces of the first wiring board 3, the second wiring board 4 and the switch blade 6 are coated with anti-corrosion layers, so that the surfaces of the isolating switch are prevented from being corroded, and the service life of the isolating switch is prolonged.

The utility model discloses the theory of operation: when using, with plug-in strip 6 downstream for during isolator closing, movable contact 7 can get into and block into spread groove 8 in, and extrude quiet contact 9 downwards, after spacing lug 11 blocks into spacing recess 12, movable contact 7 is fixed in spread groove 8, prevents that the switch from being bumped by the mistake and leading to cutting off, and spring 10 can let quiet contact 9 contact with movable contact 7 all the time through elasticity, increases its stability of connecting.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a high-low voltage isolator, includes base (1), its characterized in that: the top of the base (1) is symmetrically and fixedly provided with insulating pillars (2), the top end of each insulating pillar (2) is respectively and fixedly provided with a first wiring board (3) and a second wiring board (4), a connecting seat (5) is fixedly arranged on each first wiring board (3), a knife switch (6) is arranged between each first wiring board (3) and each second wiring board (4), one end of each knife switch (6) is hinged with the corresponding connecting seat (5), the other end of each knife switch (6) is fixedly provided with a movable contact block (7), a connecting groove (8) is fixedly arranged on each second wiring board (4), a static contact block (9) is arranged in an inner cavity of each connecting groove (8), the bottom of each static contact block (9) is connected with the bottom of the inner cavity of each connecting groove (8) through a spring (10), and a limiting convex block (11) is fixedly arranged on the inner wall of, and limiting grooves (12) are formed in the positions, corresponding to the limiting convex blocks (11), of the two sides of the static contact block (9).

2. A high and low voltage isolator switch according to claim 1, wherein: the cross section of the base (1) is in a convex shape, and mounting holes (13) are uniformly formed in the base (1).

3. A high and low voltage isolator switch according to claim 1, wherein: first wiring board (3), second wiring board (4) all install on insulating pillar (2) through fixing bolt, and the junction is provided with insulating rubber pad.

4. A high and low voltage isolator switch according to claim 1, wherein: all fixedly provided with terminal (14) on first wiring board (3), second wiring board (4), terminal (14) are located the one side of keeping away from connecting seat (5), spread groove (8).

5. A high and low voltage isolator switch according to claim 1, wherein: the side plate of the connecting groove (8) is an elastic plate, and the width in the connecting groove (8) is matched with that of the movable contact block (7).

6. A high and low voltage isolator switch according to claim 1, wherein: and the outer surfaces of the first wiring board (3), the second wiring board (4) and the switch blade (6) are coated with anti-corrosion layers.