CN213583617U

CN213583617U - High-voltage isolating switch for power distribution cabinet

Info

Publication number: CN213583617U
Application number: CN202022638829.8U
Authority: CN
Inventors: 薛明亮; 黄凌志; 崔高鹏; 刘征; 黄立强
Original assignee: Cetc North Intelligent Electric Co ltd
Current assignee: Cetc North Intelligent Electric Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-06-29
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a high-voltage isolating switch for a power distribution cabinet, which comprises a shell, wherein an opening and closing component is arranged in the shell, insulating columns are fixed at the positions at the two sides of the opening and closing component in the shell, one insulating column top end is fixed with a static contact through a mounting plate, the other insulating column top end is connected with a moving contact through the mounting plate in a rotating way, the opening and closing component comprises a chute, a push block, a spring, a press block, a first connecting rod, a second connecting rod, a third connecting rod, a first clamping block, a fixed rod, a second clamping block, a guide rod, a guide sleeve and a push rod, the first clamping block rotates around the connecting point between the first clamping block and the fixed rod through pressing the press block, thereby realizing that the moving contact is fixed through the buckling of the first clamping block and the second clamping block, preventing the moving contact from being mistakenly bumped during opening to cause the closing or the occurrence of the, the safety and reliability of the isolating switch are improved.

Description

High-voltage isolating switch for power distribution cabinet

Technical Field

The utility model relates to an isolator technical field specifically is a high voltage isolator for switch board.

Background

The isolating switch is a switch device which is mainly used for isolating a power supply and switching off operation and is used for connecting and cutting off a small current circuit and has no arc extinguishing function, the operating principle and the structure of the isolating switch are simple, but the isolating switch has high requirements on the operating reliability due to large use amount, and has great influence on the design, the establishment and the safe operation of a substation and a power plant. The main characteristics of the isolating switch are that there is no arc extinguishing ability, and only can open and close the circuit under the condition of no load current, but the existing isolating switch lacks corresponding fixed structure when in use, and when the switch is in an open state, the switch is easily touched by mistake to cause closing, the potential safety hazard is high, and when the switch is closed, the instant of the switch-on current is because the excessive movable contact is flicked, and the use is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high voltage isolator for switch board to solve the problem that proposes in the 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 voltage isolator for switch board, includes the shell, the inside subassembly that opens and shuts that is provided with of shell, the inside both sides position department that is located the subassembly that opens and shuts of shell all is fixed with the insulating post, one the insulating top of the post end is fixed with the static contact through the mounting panel, and another the insulating top of the post end is connected with the moving contact through the mounting panel rotation.

The opening and closing assembly comprises a sliding groove, a push block, a spring, a pressing block, a first connecting rod, a second connecting rod, a third connecting rod, a first clamping block, a fixed rod, a second clamping block, a guide rod, a guide sleeve and a push rod, the sliding groove is formed in the middle of the outer side of the shell, the push block is connected to the inner side of the sliding groove in a sliding mode, the middle of one side, away from the sliding groove, of the push block is connected with the pressing block through the spring, one end, located inside the shell, of the pressing block is rotatably connected with the first connecting rod, one end, away from the pressing block, of the first connecting rod is rotatably connected with the second connecting rod, one end, away from the first connecting rod, of the second connecting rod is rotatably connected with the end of the first clamping block, the fixed rod is fixed on the outer side of the push block corresponding to the position, and second clamping blocks matched with the first clamping blocks are fixed at two ends of the sliding groove on the outer side of the shell, a guide rod is fixed at one side of the push block positioned in the shell, a guide sleeve is rotatably sleeved outside the guide rod, a push rod is fixed at the top end of the guide sleeve, and one end of the push rod, far away from the guide sleeve, is rotatably connected with the moving contact.

As a further aspect of the present invention: the static contact and the moving contact are respectively connected with two wire connectors.

As a further aspect of the present invention: the mounting hole has been seted up in the shell outside, the radiating groove has been seted up to the outside both sides of shell.

Compared with the prior art, the beneficial effects of the utility model are that:

make first fixture block rotate round its and the tie point between the dead lever through pressing down the pressing block to realize between first fixture block and the second fixture block, through the fixed moving contact of the lock of first fixture block and second fixture block, prevent that the moving contact from being bumped by the mistake during opening and leading to closed or closed because the emergence of the too big rebound condition that appears of electric current, increased isolator's security and reliability.

Drawings

FIG. 1 is a front view of a high-voltage isolation switch for a power distribution cabinet;

FIG. 2 is an enlarged schematic view of the structure at the position A of the high-voltage isolating switch for the power distribution cabinet;

FIG. 3 is a front structural sectional view of a high-voltage isolating switch for a power distribution cabinet;

FIG. 4 is a schematic view of a guide rod mounting structure of a high-voltage isolating switch for a power distribution cabinet;

in the figure: 1. a housing; 2. an opening and closing assembly; 21. a chute; 22. a push block; 23. a spring; 24. a pressing block; 25. a first connecting rod; 26. a second connecting rod; 27. a third connecting rod; 28. a first clamping block; 29. fixing the rod; 210. a second fixture block; 211. a guide bar; 212. a guide sleeve; 213. a push rod; 3. an insulating column; 4. static contact; 5. a moving contact; 6. and a wire joint.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, a high voltage isolation switch for a power distribution cabinet includes a housing 1, an opening and closing component 2 is disposed inside the housing 1, insulating columns 3 are fixed inside the housing 1 at positions on two sides of the opening and closing component 2, a fixed contact 4 is fixed at the top end of one insulating column 3 through an installation plate, and a movable contact 5 is rotatably connected at the top end of the other insulating column 3 through the installation plate.

The opening and closing assembly 2 comprises a sliding groove 21, a push block 22, a spring 23, a pressing block 24, a first connecting rod 25, a second connecting rod 26, a third connecting rod 27, a first clamping block 28, a fixing rod 29, a second clamping block 210, a guide rod 211, a guide sleeve 212 and a push rod 213, the sliding groove 21 is formed in the middle of the outer side of the shell 1, the push block 22 is connected to the inner portion of the sliding groove 21 in a sliding manner, the middle of one side of the push block 22, which is far away from the sliding groove 21, is connected with the pressing block 24 through the spring, when an external force acting on the pressing block 24 is cancelled, the spring 23 drives the pressing block 24 to be restored to the original state, one end, which is located inside the shell 1, of the pressing block 24 is rotatably connected with the first connecting rod 25, one end, which is far away from the pressing block 24, of the first connecting rod 25 is rotatably connected with the second connecting rod, a fixing rod 29 is fixed on the outer side of the pushing block 22 corresponding to the position of the first fixture block 28, when the pushing block 24 is pressed, the first fixture block 28 rotates around the joint of the first fixture block 28 and the fixing rod 29, the fixing rod 29 is rotatably connected with the middle position of the first fixture block 28 through a movable pin, a second fixture block 210 used in cooperation with the first fixture block 28 is fixed at two ends of the sliding groove 21 on the outer side of the shell 1, a guide rod 211 is fixed on one side of the pushing block 22 inside the shell 1, a guide sleeve 212 is rotatably sleeved outside the guide rod 211, the pushing rod 213 is convenient to drive the moving contact 5 to move by the pushing rod 213, and the pushing rod 213 is rotatably connected with the moving contact 5 at.

The static contact 4 and the moving contact 5 are respectively connected with two wire connectors 6 and are connected with an external wire through the wire connectors 6.

The mounting hole has been seted up in the 1 outside of shell, and the radiating groove has been seted up to 1 outside both sides of shell, and isolator of being convenient for dispels the heat.

When the utility model is used, when the push block 22 is pushed upwards or the push block 22 is pushed downwards, the push block 22 pushes the push rod 213 to drive the movable contact 5 to rotate around the connection part of the movable contact and the mounting plate, thereby realizing the opening and closing, when the pressing block 24 is pressed, the pressing block 24 drives the first connecting rod 25 to move, the distance between the two ends of the first connecting rod 25 and the second connecting rod 26 is shortened, the third connecting rod 27 moves towards the inside of the pushing block 22, thereby driving the first latch 28 to rotate around the connection position of the first latch 28 and the fixing rod 29, when the push block 22 is located at the topmost end or the bottommost end of the sliding slot 21, the push block 22 is released, the spring 23 drives the push block 22 to return to the original state, the first latch 28 is buckled with the second latch 210, therefore, the movable contact 5 is fixed, the movable contact is prevented from being touched by mistake, and when the state of the movable contact 5 is changed, the pressing block 24 is pressed, the first latch 28 is separated from the second latch 210, and the push block 22 can be moved to change the position of the movable contact 5.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A high-voltage isolating switch for a power distribution cabinet comprises a shell and is characterized in that an opening and closing assembly is arranged inside the shell, insulating columns are fixed at positions on two sides of the opening and closing assembly inside the shell, a fixed contact is fixed at the top end of one insulating column through an installation plate, a movable contact is rotatably connected at the top end of the other insulating column through the installation plate,

2. The high voltage isolation switch for the power distribution cabinet according to claim 1, wherein the fixed contact and the movable contact are respectively connected with two wire connectors.

3. The high-voltage isolating switch for the power distribution cabinet according to claim 1, wherein a mounting hole is formed in the outer side of the housing, and heat dissipation grooves are formed in two sides of the outer portion of the housing.