阅读说明：本技术 一种真空断路器 (Vacuum circuit breaker ) 是由 陈威翰 陈威衡 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种真空断路器,包括活动安装板,所述活动安装板的内部安装有圆杆,且圆杆的上端安装有连动轮,所述圆杆的上端与连动轮的下端构成蜗轮蜗杆结构,且连动轮的外侧固定安装有连接轮,所述连接轮的外侧连接有移动板；安装固定轮,其安装在移动板的前端,所述移动板的下端固定连接有转动连接杆,且转动连接杆的上端转动连接有衔接活动杆,所述衔接活动杆的内侧连接有转动半齿轮,且转动半齿轮的前端连接有转动衔接轮,所述转动衔接轮的上端固定安装有第一圆盘。该真空断路器,方便真空断路器进行安装,不易使真空断路器出现晃动,且方便对真空断路器进行防护,方便对真空断路器的高度进行调节。(The invention discloses a vacuum circuit breaker, which comprises a movable mounting plate, wherein a round rod is arranged in the movable mounting plate, a linkage wheel is arranged at the upper end of the round rod, the upper end of the round rod and the lower end of the linkage wheel form a worm and gear structure, a connecting wheel is fixedly arranged on the outer side of the linkage wheel, and a movable plate is connected to the outer side of the connecting wheel; the installation tight pulley, it is installed at the front end of movable plate, the lower extreme fixedly connected with of movable plate rotates the connecting rod, and rotates the upper end of connecting rod and rotate and be connected with the linking movable rod, the inboard that links up the movable rod is connected with rotates half-gear, and rotates the front end of half-gear and be connected with and rotate the linking wheel, the upper end fixed mounting who rotates the linking wheel has first disc. This vacuum circuit breaker makes things convenient for vacuum circuit breaker to install, and difficult messenger vacuum circuit breaker appears rocking, and conveniently protects vacuum circuit breaker, and the convenience is adjusted vacuum circuit breaker's height.)

1. A vacuum interrupter, comprising:

the movable mounting plate is internally provided with a round rod, the upper end of the round rod is provided with a linkage wheel, the upper end of the round rod and the lower end of the linkage wheel form a worm and gear structure, the outer side of the linkage wheel is fixedly provided with a connecting wheel, and the outer side of the connecting wheel is connected with a movable plate;

the mounting fixed wheel is mounted at the front end of the movable plate, the lower end of the movable plate is fixedly connected with a rotating connecting rod, the upper end of the rotating connecting rod is rotatably connected with a connecting movable rod, the inner side of the connecting movable rod is connected with a rotating half gear, the front end of the rotating half gear is connected with a rotating connecting wheel, and a first disc is fixedly mounted at the upper end of the rotating connecting wheel;

the limiting fixing block is mounted at the upper end of the first disc, a vacuum circuit breaker body is mounted on the inner side of the limiting fixing block, a protection mechanism is connected to the outer side of the vacuum circuit breaker body, movable blocks are mounted on the front side and the rear side of the vacuum circuit breaker body in a clamped mode, and the lower end of each movable block is connected with a first cross rod;

the fixed mounting board, it is installed in the outside of movable mounting board, the internally mounted of fixed mounting board has adjustment mechanism, and adjustment mechanism's upper end fixed mounting has and links up the montant, it has the removal to link up the piece to link up the outside upper end threaded connection of montant.

2. A vacuum interrupter as claimed in claim 1, characterized in that: the limiting fixing block is connected with the first disc in a sliding mode, and the limiting fixing block is connected with the vacuum circuit breaker body in a clamping mode and plays a role in fixing the vacuum circuit breaker body.

3. A vacuum interrupter as claimed in claim 1, characterized in that: the connecting movable rod is connected with the rotating half gear in a rotating mode, and the rotating half gear is connected with the rotating connecting wheel in a meshing mode.

4. A vacuum interrupter as claimed in claim 1, characterized in that: the first cross rod is connected with the movable block in a threaded mode, and the vertical section of the movable block is L-shaped.

5. A vacuum interrupter as claimed in claim 1, characterized in that: the connecting wheel is connected with the movable plate in a threaded mode, and the movable plate is connected with the mounting fixed wheel in a meshed mode.

6. A vacuum interrupter as claimed in claim 1, characterized in that: the protection mechanism comprises an installation block, a fixing plate, a protection plate, a first elastic piece and a second elastic piece;

a mounting block mounted on an outer side of the vacuum circuit breaker body;

a fixing plate fixedly mounted on the outer side of the mounting block;

a second elastic member installed at an outer side of the fixing plate;

a first elastic member disposed outside the second elastic member;

and the protection plate is fixedly arranged on the outer side of the first elastic piece.

7. A vacuum interrupter as claimed in claim 6, characterized in that: the mounting blocks are connected with the vacuum circuit breaker body in a clamping mode, and the mounting blocks are distributed in a bilateral symmetry mode about the center line of the vacuum circuit breaker body.

8. A vacuum interrupter as claimed in claim 1, characterized in that: the adjusting mechanism comprises a second cross rod, a second disc, a fixed rod, a connecting moving rod and a moving block;

a second cross bar installed inside the fixed mounting plate;

a moving block installed at an outer side of the second rail;

the linking moving rod is rotatably arranged at the upper end of the moving block;

a fixed rod rotatably installed at an inner side of the linking moving rod;

and the second disc is fixedly arranged at the upper end of the fixing rod.

9. A vacuum interrupter as claimed in claim 8, wherein: the moving blocks are connected with the second cross rods in a threaded mode, and the moving blocks are distributed in bilateral symmetry about the center line of the second disc.

10. A vacuum interrupter as claimed in claim 8, wherein: the movable connecting block is connected with the fixed mounting plate in a sliding mode, and the vertical section of the movable connecting block is U-shaped.

Technical Field

The invention relates to the technical field of vacuum circuit breakers, in particular to a vacuum circuit breaker.

Background

The vacuum circuit breaker is a current switching device which has high vacuum insulating medium, can close and open a normal circuit and open an abnormal circuit, has the advantages of small volume, light weight and the like, but the existing vacuum circuit breaker still has some defects, such as:

chinese patent No. CN104319163B discloses a vacuum circuit breaker, which belongs to the technical field of high-voltage electrical equipment manufacturing. The invention comprises a vacuum switch unit, an isolating switch unit, a grounding switch unit and an operating mechanism: the vacuum circuit breaker is characterized in that the isolating switch unit, the vacuum switch unit and the grounding switch unit are sequentially and longitudinally arranged on a vacuum circuit breaker rack, the isolating switch unit and the grounding switch unit are in linkage connection through a connecting rod mechanism, and the operating mechanism arranged on a partition plate on the side edge of the rack and the isolating switch unit and the grounding switch unit realize interlocking braking among the isolating switch unit, the vacuum switch unit and the grounding switch unit. The vacuum circuit breaker is simple in structure and provided with the grounding switch-isolating switch integrated linkage mechanism, so that the vacuum circuit breaker is small in size and convenient to install and maintain, and the limiting assembly on the operating mechanism and the linkage mechanism are interlocked and braked, so that the vacuum circuit breaker is flexible to operate and low in failure rate.

Chinese patent publication No. CN105023796A discloses a vacuum circuit breaker, has the end support board, the symmetry is provided with two and moves the connecting rod in the end support board, two upper portions that move the connecting rod are connected with the dwang, the intermediate position department of dwang is provided with rather than looks vertically insulating pull rod, end support board. Still the symmetry is provided with two support angle seats on the dwang, two support angle seats are connected with the heat dissipation frame that is located the frame inside, the inside of heat dissipation frame is provided with the vacuum frame that is used for the insulating pull rod of parcel: the vacuum frame is provided with a longitudinal magnetic contact between the upper contact and the lower contact. The contact and separation between the contacts in the vacuum circuit breaker are easy to control, and the working stability is higher.

The above prior art solutions have the following drawbacks: vacuum circuit breaker installs not convenient for, easily makes vacuum circuit breaker appear rocking, and is not convenient for protect vacuum circuit breaker, is not convenient for highly adjusting vacuum circuit breaker, consequently, we provide a vacuum circuit breaker to in the solution the problem that proposes in the aforesaid.

Disclosure of Invention

The invention aims to provide a vacuum circuit breaker, which aims to solve the problems that the vacuum circuit breaker is inconvenient to install, shake and protect and adjust the height of the vacuum circuit breaker in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a vacuum circuit breaker comprises a movable mounting plate, wherein a round rod is mounted inside the movable mounting plate, a linkage wheel is mounted at the upper end of the round rod, the upper end of the round rod and the lower end of the linkage wheel form a worm and gear structure, a connecting wheel is fixedly mounted on the outer side of the linkage wheel, and a movable plate is connected to the outer side of the connecting wheel;

the mounting fixed wheel is mounted at the front end of the movable plate, the lower end of the movable plate is fixedly connected with a rotating connecting rod, the upper end of the rotating connecting rod is rotatably connected with a connecting movable rod, the inner side of the connecting movable rod is connected with a rotating half gear, the front end of the rotating half gear is connected with a rotating connecting wheel, and a first disc is fixedly mounted at the upper end of the rotating connecting wheel;

the limiting fixing block is mounted at the upper end of the first disc, a vacuum circuit breaker body is mounted on the inner side of the limiting fixing block, a protection mechanism is connected to the outer side of the vacuum circuit breaker body, movable blocks are mounted on the front side and the rear side of the vacuum circuit breaker body in a clamped mode, and the lower end of each movable block is connected with a first cross rod;

the fixed mounting plate is mounted on the outer side of the movable mounting plate, an adjusting mechanism is mounted inside the fixed mounting plate, a connecting vertical rod is fixedly mounted at the upper end of the adjusting mechanism, and a movable connecting block is connected to the upper end of the outer side of the connecting vertical rod in a threaded manner;

by adopting the technical scheme, the movable connecting block is driven by the connecting vertical rod to slide with the fixed mounting plate by conveniently moving the connecting block through the moving connecting block which is connected with the outer side of the upper end of the vertical rod in a threaded manner, so that the movable mounting plate and the fixed mounting plate are driven by the moving connecting block to move, and the height of the vacuum circuit breaker body is conveniently adjusted.

As a preferred technical scheme of the invention, the limit fixing block is connected with the first disc in a sliding manner, and the limit fixing block is connected with the vacuum circuit breaker body in a clamping manner and plays a role in fixing the vacuum circuit breaker body;

by adopting the technical scheme, the first disc is rotated, so that the limiting fixing block connected with the first disc in a sliding manner slides with the movable mounting plate, the limiting fixing block is clamped with the vacuum circuit breaker body and is connected with the vacuum circuit breaker body, and the vacuum circuit breaker body is convenient to install.

As the preferred technical scheme of the invention, the connecting movable rod is connected with the rotating half gear in a rotating mode, and the rotating half gear is connected with the rotating connecting wheel in a meshing mode;

by adopting the technical scheme, the connecting movable rod rotates, so that the rotating half gear connected with the connecting movable rod in a rotating mode rotates, the rotating connecting wheel connected with the rotating half gear in a meshing mode rotates, and the first disk fixedly connected with the rotating connecting wheel rotates.

As a preferred technical scheme of the invention, the first cross bar is connected with the movable block in a threaded manner, and the vertical section of the movable block is L-shaped;

by adopting the technical scheme, the first cross rod is rotated with the movable mounting plate by rotating the first cross rod, so that the movable block in threaded connection with the first cross rod slides with the movable mounting plate, and the movable block is clamped with the vacuum circuit breaker body to be connected, and the vacuum circuit breaker body is conveniently and further installed.

As the preferred technical scheme of the invention, the connecting wheel is connected with the movable plate in a threaded manner, and the movable plate is connected with the mounting fixed wheel in a meshed manner;

by adopting the technical scheme, the movable plate and the movable mounting plate are driven to slide by the connecting wheel, so that the mounting fixed wheel meshed and connected with the movable plate rotates.

As a preferred technical scheme of the invention, the protection mechanism comprises an installation block, a fixing plate, a protection plate, a first elastic piece and a second elastic piece;

a mounting block mounted on an outer side of the vacuum circuit breaker body;

a fixing plate fixedly mounted on the outer side of the mounting block;

a second elastic member installed at an outer side of the fixing plate;

a first elastic member disposed outside the second elastic member;

a protection plate fixedly installed at an outer side of the first elastic member;

adopt above-mentioned technical scheme, through guard plate fixed mounting in the outside of first elastic component, the convenience is protected the vacuum circuit breaker body.

As a preferred technical scheme of the invention, the mounting blocks are connected with the vacuum circuit breaker body in a clamping manner, and the mounting blocks are distributed in bilateral symmetry about the center line of the vacuum circuit breaker body;

by adopting the technical scheme, the installation block is conveniently installed on the outer side of the vacuum circuit breaker body through the clamping connection between the installation block and the vacuum circuit breaker body.

As a preferred technical solution of the present invention, the adjusting mechanism includes a second cross bar, a second disc, a fixed bar, a linking moving bar, and a moving block;

a second cross bar installed inside the fixed mounting plate;

a moving block installed at an outer side of the second rail;

the linking moving rod is rotatably arranged at the upper end of the moving block;

a fixed rod rotatably installed at an inner side of the linking moving rod;

the second disc is fixedly arranged at the upper end of the fixed rod;

by adopting the technical scheme, the linking movable rod drives the second disc to rotate through the rotating connection between the linking movable rod and the movable block.

As a preferred technical scheme of the invention, the moving blocks are connected with the second cross bar in a threaded manner, and the moving blocks are distributed in bilateral symmetry about the center line of the second disc;

by adopting the technical scheme, the second cross rod is rotated, so that the moving block in threaded connection with the second cross rod slides with the fixed mounting plate.

As a preferred technical scheme of the invention, the movable connecting block is connected with the fixed mounting plate in a sliding manner, and the vertical section of the movable connecting block is U-shaped;

by adopting the technical scheme, the connecting vertical rod rotates to drive the movable connecting block to slide with the fixed mounting plate.

Compared with the prior art, the invention has the beneficial effects that: the vacuum circuit breaker is convenient to install, the vacuum circuit breaker is not easy to shake, the vacuum circuit breaker is convenient to protect, and the height of the vacuum circuit breaker is convenient to adjust;

1. the connecting wheel is driven to rotate by the interlocking wheel which forms a worm and gear structure with the round rod through rotating the round rod, so that the movable plate in threaded connection with the connecting wheel slides with the movable mounting plate, the mounting fixed wheel in meshed connection with the movable plate drives the rotating connecting rod to rotate, the connecting movable rod drives the rotating half gear to rotate, the rotating interlocking wheel in meshed connection with the rotating half gear drives the first disc to rotate, the limiting fixed block in sliding connection with the first disc slides with the movable mounting plate, the limiting fixed block is in clamping connection with the vacuum circuit breaker body, and the vacuum circuit breaker body is convenient to mount;

2. the first cross rod and the movable mounting plate are rotated by rotating the first cross rod, so that the movable block in threaded connection with the first cross rod slides with the movable mounting plate, and the movable block is clamped and connected with the vacuum circuit breaker body, and the vacuum circuit breaker body is convenient to further mount;

3. move to the inboard through the guard plate, make the guard plate drive first elastic component and compress with the second elastic component to the convenience protects the vacuum circuit breaker body, through rotating the second horizontal pole, make the movable block with second horizontal pole threaded connection drive and link up the carriage release lever and rotate with the dead lever, thereby make the second disc drive link up the montant and rotate, and then make and link up the piece with the removal that links up montant threaded connection and slide with fixed mounting panel, conveniently carry out altitude mixture control to the vacuum circuit breaker body.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;

FIG. 4 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 5 is a schematic diagram of a rear view cross-sectional structure of the connection between the circular rod and the linkage wheel according to the present invention;

FIG. 6 is a schematic top view of the cross-sectional structure of the fixing block and the first disk;

FIG. 7 is a schematic side sectional view of the connection between the first rail and the movable block according to the present invention;

FIG. 8 is a schematic top sectional view of the movable plate and the fixed wheel assembly of the present invention;

FIG. 9 is a schematic view of the overall structure of the fixed rod and the movable connecting rod according to the present invention.

In the figure: 1. a movable mounting plate; 2. a vacuum circuit breaker body; 3. a limit fixing block; 4. a first disc; 5. rotating the joining wheel; 6. connecting the movable rod; 7. rotating the half gear; 8. a round bar; 9. rotating the connecting rod; 10. mounting a fixed wheel; 11. moving the plate; 12. a connecting wheel; 13. a linkage wheel; 14. a first cross bar; 15. a movable block; 16. mounting blocks; 17. a fixing plate; 18. a protection plate; 19. a first elastic member; 20. a second elastic member; 21. a second cross bar; 22. a second disc; 23. fixing the rod; 24. connecting the movable rod; 25. a moving block; 26. fixing the mounting plate; 27. connecting the vertical rods; 28. and moving the connecting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a vacuum circuit breaker comprises a movable mounting plate 1, wherein a round rod 8 is mounted inside the movable mounting plate 1, a linkage wheel 13 is mounted at the upper end of the round rod 8, the upper end of the round rod 8 and the lower end of the linkage wheel 13 form a worm gear structure, a connecting wheel 12 is fixedly mounted on the outer side of the linkage wheel 13, a movable plate 11 is connected to the outer side of the connecting wheel 12, a vacuum circuit breaker body 2 is placed at the upper end of the movable mounting plate 1, the vacuum circuit breaker body 2 is clamped and connected with the movable mounting plate 1, the round rod 8 is rotated, the linkage wheel 13 which forms the worm gear structure with the round rod 8 is rotated with the movable mounting plate 1, the connecting wheel 12 fixedly connected with the linkage wheel 13 is rotated, and the movable plate 11 which is in threaded connection with the connecting wheel 12 slides with the movable mounting plate 1;

the mounting fixed wheel 10 is mounted at the front end of the movable plate 11, the lower end of the movable plate 11 is fixedly connected with a rotating connecting rod 9, and the upper end of the rotating connecting rod 9 is rotatably connected with a linking movable rod 6, so that the mounting fixed wheel 10 engaged with the movable plate 11 rotates, and the rotating connecting rod 9 fixedly connected with the mounting fixed wheel 10 drives the linking movable rod 6 to rotate, and further a rotating half gear 7 rotatably connected with the linking movable rod 6 rotates, the inner side of the linking movable rod 6 is connected with the rotating half gear 7, and the front end of the rotating half gear 7 is connected with a rotating linking wheel 5, the upper end of the rotating linking wheel 5 is fixedly mounted with a first disk 4, a limiting fixed block 3 is mounted at the upper end of the first disk 4, a vacuum circuit breaker body 2 is mounted at the inner side of the limiting fixed block 3, so that the rotating linking wheel 5 engaged with the rotating half gear 7 drives the first disk 4 to rotate, therefore, the limiting fixed block 3 connected with the first disc 4 in a sliding mode is connected with the vacuum circuit breaker body 2 in a clamping mode, and the vacuum circuit breaker body 2 is convenient to install;

the protection mechanism is connected to the outer side of the vacuum circuit breaker body 2, the vacuum circuit breaker body 2 is protected conveniently, the movable blocks 15 are mounted on the front side and the rear side of the vacuum circuit breaker body 2 in a clamped mode, the lower end of each movable block 15 is connected with a first cross rod 14, the first cross rods 14 are rotated, the first cross rods 14 and the movable mounting plates 1 are rotated, the movable blocks 15 in threaded connection with the first cross rods 14 slide with the movable mounting plates 1, the movable blocks 15 are connected with the vacuum circuit breaker body 2 in a clamped mode, and the vacuum circuit breaker body 2 is further mounted conveniently;

the fixed mounting board 26 is installed in the outside of movable mounting board 1, the internally mounted of fixed mounting board 26 has adjustment mechanism, and adjustment mechanism's upper end fixed mounting has linking montant 27, the outside upper end threaded connection that links up montant 27 has the removal to link up piece 28, rotate adjustment mechanism, make adjustment mechanism and fixed mounting board 26 rotate, thereby make and rotate with adjustment mechanism fixed connection's linking montant 27, and then make and link up piece 28 and fixed mounting board 26 and slide with linking montant 27 threaded connection's removal, make the removal link up piece 28 drive movable mounting board 1 and slide with fixed mounting board 26, conveniently adjust the height of vacuum circuit breaker body 2.

When using the vacuum circuit breaker, firstly, the vacuum circuit breaker body 2 is placed on the upper end of the movable mounting plate 1, and the vacuum circuit breaker body 2 is clamped and connected with the movable mounting plate 1, as shown in figure 4, figure 5 and figure 8, the connecting wheel 12 is connected with the moving plate 11 in a threaded manner, the moving plate 11 is connected with the mounting fixed wheel 10 in a meshed manner, by rotating the round rod 8, the interlocking wheel 13 which forms a worm gear structure with the round rod 8 rotates, so that the connecting wheel 12 fixedly connected with the interlocking wheel 13 rotates, further, the movable plate 11 screwed with the connecting wheel 12 slides on the movable mounting plate 1, the mounting fixed wheel 10 meshed with the movable plate 11 rotates, thereby rotating the rotating connecting rod 9 fixedly connected with the mounting fixed wheel 10 and further rotating the linking movable rod 6 rotatably connected with the rotating connecting rod 9;

specifically, as shown in fig. 1, 3 and 6, the connecting movable rod 6 is connected with the rotating half gear 7 in a rotating manner, and the rotating half gear 7 is connected with the rotating connecting wheel 5 in a meshing manner, so that the connecting movable rod 6 drives the rotating half gear 7 which is rotatably connected with the connecting movable rod 6 to rotate with the movable mounting plate 1, thereby rotating the rotating connecting wheel 5 which is engaged with the rotating half gear 7, further rotating the first disk 4 which is fixedly connected with the rotating connecting wheel 5, the limiting fixed block 3 is connected with the first disk 4 in a sliding manner, and the limiting fixed block 3 is connected with the vacuum circuit breaker body 2 in a clamping manner and plays a fixing role for the vacuum circuit breaker body 2, so that the limiting fixed block 3 which is slidably connected with the first disk 4 slides with the movable mounting plate 1, and the limiting fixed block 3 is connected with the vacuum circuit breaker body 2 in a clamping manner, the vacuum circuit breaker body 2 is convenient to install;

specifically, as shown in fig. 1 and 7, the first cross bar 14 is connected with the movable block 15 in a threaded manner, and the vertical cross section of the movable block 15 is in an L shape, and the first cross bar 14 is rotated to rotate the first cross bar 14 and the movable mounting plate 1, so that the movable block 15 in threaded connection with the first cross bar 14 slides on the movable mounting plate 1, and the movable block 15 is in clamping connection with the vacuum circuit breaker body 2, thereby facilitating further installation of the vacuum circuit breaker body 2;

specifically, as shown in fig. 2, the mounting blocks 16 are connected with the vacuum circuit breaker body 2 in a clamping manner, and the mounting blocks 16 are distributed in bilateral symmetry about the center line of the vacuum circuit breaker body 2, and the mounting blocks 16 are conveniently mounted on the outer side of the vacuum circuit breaker body 2 through the clamping connection between the mounting blocks 16 and the vacuum circuit breaker body 2, and are moved inwards through the protection plate 18, so that the first elastic member 19 fixedly mounted with the protection plate 18 is compressed, and the second elastic member 20 connected with the first elastic member 19 is compressed, and further the second elastic member 20 protects the fixing plate 17, so that the vacuum circuit breaker body 2 is conveniently protected;

specifically, as shown in fig. 1 and 9, the moving block 25 is connected to the second cross bar 21 in a threaded manner, and the moving blocks 25 are symmetrically distributed about the center line of the second disc 22, and the second cross bar 21 is rotated to rotate the second cross bar 21 and the fixed mounting plate 26, so that the moving block 25 connected to the second cross bar 21 in a threaded manner slides on the fixed mounting plate 26, and further the engaging moving rod 24 connected to the moving block 25 in a rotating manner rotates, and the fixed rod 23 connected to the engaging moving rod 24 in a rotating manner drives the second disc 22 fixedly connected to the fixed rod 23 to rotate, so that the engaging vertical rod 27 fixedly connected to the second disc 22 rotates, and further the moving engaging block 28 connected to the vertical rod 27 in a threaded manner slides on the fixed mounting plate 26, and the moving engaging block 28 drives the movable mounting plate 1 fixedly connected to the moving engaging block 28 to move up and down, thereby make the vacuum circuit breaker body 2 who is connected with 1 block of movable mounting panel go up and down, conveniently adjust the height of vacuum circuit breaker body 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.