CN214378203U

CN214378203U - Vacuum circuit breaker

Info

Publication number: CN214378203U
Application number: CN202120310007.9U
Authority: CN
Inventors: 汤浩; 王继贵
Original assignee: Zhejiang Fagao Electric Co ltd
Current assignee: Zhejiang Fagao Electric Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-10-08
Anticipated expiration: 2031-02-03

Abstract

The application relates to the technical field of circuit breakers, and discloses a vacuum circuit breaker which comprises a fixed box, wherein a fixed groove is formed above the fixed box, a fixed cover covers the upper part of the fixed box, a fixed hole communicated with the fixed groove is formed in the side surface of the fixed box, an operation plate covering the fixed hole is rotatably connected in the fixed hole, and a limiting mechanism for limiting the rotation of the operation plate is arranged on the fixed box; the draw-in groove has been seted up to one side that the vertical axis of fixed case was kept away from to the fixed orifices, the card hole of intercommunication draw-in groove is seted up to the lateral wall of fixed case, stop gear include with the operation panel towards fixed case one side fixed connection's limiting plate and set up the fixture block in the draw-in groove, the fixture block can be dismantled towards the one end in card hole and even has the kelly, the kelly is worn to locate in the draw-in groove, the jack that supplies the fixture block embedding is seted up towards one side of draw-in groove to the limiting plate, when the fixture block was embedded into the jack, the operation panel is in the horizontality, this application has the effect of conveniently maintaining the circuit breaker internals.

Description

Vacuum circuit breaker

Technical Field

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

Background

At present, vacuum circuit breakers are famous for their arc extinguishing medium and the insulating medium in the contact gap after arc extinguishing are both high vacuum, have the advantages of small volume and light weight, and are used for protection and control of electrical equipment in industrial and mining enterprises, power plants and transformer substations.

Outdoor vacuum circuit breaker among the correlation technique, including fixed case and fixed lid, the fixed slot has been seted up to the upper end of fixed case, and fixed lid is established on fixed case.

In view of the above-mentioned related art, the inventor believes that the conventional circuit breaker needs to separate the fixing cover from the fixing box during maintenance and then perform maintenance work, and it is inconvenient to re-mount the fixing cover above the fixing box after maintenance.

SUMMERY OF THE UTILITY MODEL

Very inconvenient when in order to improve the maintenance of circuit breaker internals, this application provides a vacuum circuit breaker.

The application provides a vacuum circuit breaker adopts following technical scheme:

a vacuum circuit breaker comprises a fixed box, wherein a fixed groove is formed above the fixed box, a fixed cover covers the upper part of the fixed box, a fixed hole communicated with the fixed groove is formed in the side surface of the fixed box, an operation plate covering the fixed hole is rotatably connected in the fixed hole, and a limiting mechanism for limiting the rotation of the operation plate is arranged on the fixed box; the fixed orifices is kept away from one side of the vertical axis of fixed case and is seted up the draw-in groove, the card hole of intercommunication draw-in groove is seted up to the lateral wall of fixed case, stop gear include with the operation panel towards fixed case one side fixed connection's limiting plate and set up the fixture block in the draw-in groove, the fixture block can be dismantled towards the one end in card hole and even have the kelly, the kelly is worn to locate in the draw-in groove, the jack that supplies the fixture block embedding is seted up towards one side of draw-in groove to the limiting plate, when the fixture block imbeds in the jack, the operation panel is in the horizontality.

Through adopting above-mentioned technical scheme, preceding movable operation board rotates and opens the operation panel, and when the draw-in groove aligns with the jack, the drive kelly removed, makes in the kelly imbeds the jack, and the restriction action moves, has the limiting displacement, prevents that the operation panel from reclosing, and the staff of being convenient for maintains the part of fixed case.

Optionally, an operating panel is arranged on one side, away from the clamping block, of the clamping rod, and the diameter of the operating panel is larger than that of the clamping hole.

By adopting the technical scheme, the operating panel is arranged, so that the holding area of a hand is increased, and a worker can drive the clamping rod to move along the axial direction of the clamping hole conveniently; in addition, the operating panel has a limiting function, and when the operating panel is abutted against the side wall of the fixed box, the fixture block is limited to continue moving towards the axial direction of the fixed hole.

Optionally, a spring is arranged in the clamping groove, two ends of the spring are respectively abutted against one side of the clamping groove far away from the fixing hole and the clamping block, and the spring is in a compression state.

Through adopting above-mentioned technical scheme, the spring exerts the effort to the fixture block, makes the fixture block embedding more stable in the jack when, prevents that the fixture block from breaking away from the jack.

Optionally, the spring is sleeved outside the clamping rod.

Through adopting above-mentioned technical scheme, the spring housing is established outside the kelly, has limiting displacement, and when spring compression or tensile, the position of spring can not take place the skew.

Optionally, a first groove is formed in one side, facing the fixed box, of the operating plate, a magnet is arranged in the first groove, a second groove opposite to the first groove is formed in one side, facing the operating plate, of the fixed box, and an iron sheet is arranged in the second groove.

Through adopting above-mentioned technical scheme, when magnet and iron sheet mutually supported, restriction operation panel rotated, when stop gear damaged, made the operation panel be difficult for being opened.

Optionally, the end face of the clamping block, which is far away from the clamping rod, is designed to be an arc-shaped face.

Through adopting above-mentioned technical scheme, it has the guide effect to set up the arcwall face, and when draw-in groove and jack were aligned, the fixture block was embedded into in the jack more easily.

Optionally, a handle is arranged on one side of the operating plate away from the fixing box.

Through adopting above-mentioned technical scheme, be convenient for the staff through the handle and rotate the operating panel and open.

Optionally, a support frame is arranged below the fixing box.

Through adopting above-mentioned technical scheme, set up the support frame, make the high rising of fixed case, make fixed case not with ground contact to when surface ponding, prevent that fixed case from being corroded, reduce the contact on fixed case and ground in addition, reduce the wearing and tearing of fixed case, improve the life of fixed case.

Optionally, the lower part of the fixing box is provided with a heat dissipation hole communicated with the fixing groove.

Through adopting above-mentioned technical scheme, set up the louvre, make the air of fixed incasement and external air exchange, reduce the temperature in the fixed incasement, have the radiating effect, guarantee the smooth work of circuit breaker.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the operation board is driven to rotate to open the operation board, when the clamping groove is aligned to the jack, the clamping rod is driven to move, the clamping rod is embedded into the jack, the movement of the operation rod is limited, the limiting effect is achieved, the operation board is prevented from being closed again, and workers can maintain parts of the fixed box conveniently;

2. the heat dissipation holes are arranged to accelerate the air circulation between the inside of the fixed box and the outside.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

fig. 2 is a partial cross-sectional view highlighting a spacing mechanism.

Reference numerals: 1. a fixed box; 11. fixing grooves; 12. a fixing hole; 13. a circular hole; 14. a card slot; 15. a clamping hole; 16. a support frame; 17. heat dissipation holes; 18. a second groove; 19. iron sheets; 2. a fixed cover; 3. an operation panel; 31. a handle; 32. a first groove; 33. a magnet; 4. a round bar; 5. a limiting mechanism; 51. a clamping block; 511. an arc-shaped surface; 512. a threaded hole; 52. a clamping rod; 521. a threaded rod; 53. a spring; 54. an operation panel; 55. a limiting plate; 551. and (4) inserting the jack.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment discloses a vacuum circuit breaker. Referring to fig. 1 and 2, the vacuum circuit breaker includes a fixing case 1 and a fixing cover 2, and the fixing cover 2 is covered on the fixing case 1. Fixed slot 11 has been seted up towards the one end of fixed lid 2 to fixed case 1, and two fixed orificess 12 have all been seted up to fixed case 1's relative both ends face, and four fixed orificess 12 all communicate with fixed slot 11. The two fixing holes 12 on the same side are symmetrically distributed along the vertical central axis of the fixing box 1.

Referring to fig. 1 and 2, an operation plate 3 is rotatably connected to each of the fixing holes 12, and the operation plate 3 covers the fixing holes 12. The horizontal both ends of fixed orifices 12 are rotated and are connected with round bar 4, and the round hole 13 that supplies round bar 4 embedding is all seted up at the horizontal both ends of fixed orifices 12. The operating plate 3 is sleeved outside the round rod 4, and the operating plate 3 can rotate along the axis of the round rod 4. One side fixedly connected with handle 31 of operation panel 3 far away from limiting plate 55 is convenient for the staff drive limiting plate 55 and rotates.

Referring to fig. 1 and 2, the fixed box 1 is provided with a stopper mechanism 5 for restricting the rotation of the operation panel 3. The limiting mechanism 5 is arranged on one side, far away from the vertical central axis of the fixing groove 11, of the fixing hole 12. One side of the fixing hole 12 far away from the vertical central axis of the fixing groove 11 is provided with a clamping groove 14, and the end face of the clamping groove 14 far away from the opening is provided with a clamping hole 15.

Referring to fig. 1 and 2, the stopper mechanism 5 includes a latch 51, a latch lever 52, a spring 53, an operation plate 54, and a stopper plate 55. The latch 51 is slidably disposed in the latch slot 14, and an end of the latch 51 away from the latch hole 15 is disposed as an arc surface 511. The clamping rod 52 penetrates through the clamping hole 15, one end of the clamping rod 52 facing the fixing hole 12 is detachably connected with the clamping block 51, and the detachable structure can be any one of connection structures such as a threaded connection structure and a magnetic connection structure. The detachable connection structure in the application adopts a threaded connection structure. A threaded rod 521 is fixedly connected to one end, facing the latch 51, of the latch 52, a threaded hole 512 is formed in one end, facing the latch 52, of the latch 51, and the threaded rod 521 is in threaded connection with the threaded hole 512.

Referring to fig. 1 and 2, the operating plate 54 is fixedly connected to an end surface of the latch lever 52 away from the latch 51, and a diameter of the operating plate 54 is larger than an inner diameter of the latch 51. The operator can drive the clamping rod 52 to move along the axial direction of the clamping hole 15 through the operating panel 54, and the limiting function is achieved. When the operation panel 54 abuts against the fixed box 1, the movement of the stopper rod 52 is restricted, and the stopper 51 is prevented from coming off the notch 14. The spring 53 is disposed in the latch slot 14 and sleeved outside the latch rod 52.

Referring to fig. 1 and 2, the stopper plate 55 is fixedly connected to an end surface of the operation plate 3 adjacent to the fixing groove 11, and the stopper plate 55 is located on a side of the operation plate 3 adjacent to the card slot 14. The limiting plate 55 is provided with a plurality of insertion holes 551 on one side facing the slot 14, the insertion holes 551 can allow the fixture block 51 to pass through, and the insertion holes 551 are circumferentially distributed along the axis of the round rod 4.

Referring to fig. 1, the operation panel 3 has first grooves 32 formed along both end surfaces of the round bar 4, the fixing holes 12 have second grooves 18 formed along both end surfaces of the round bar 4, and the second grooves 18 are opposite to the first grooves 32. Magnets 33 are fixedly connected in the two first grooves 32, iron sheets 19 are fixedly connected in the two second grooves 18, and when the magnets 33 are matched with the iron sheets 19, the operation plate 3 is limited to rotate.

Referring to fig. 1, fixed case 1's bottom is fixed even has support frame 16, and a plurality of louvres 17 have been seted up to fixed case 1's bottom, increase fixed case 1 inside air and outside air's circulation to the temperature reduction in fixed case 1 when the circuit breaker during operation.

The implementation principle of the vacuum circuit breaker in the embodiment of the application is as follows: when the latch groove 14 is aligned with the new insertion hole 551, the spring 53 drives the latch 51 to be inserted into the new insertion hole 551, thereby restricting the rotation of the operation panel 3, and the operation panel 3 is opened or closed.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a vacuum circuit breaker, includes fixed case (1), fixed slot (11) have been seted up to the top of fixed case (1), the top lid of fixed case (1) has closed fixed lid (2), its characterized in that: a fixing hole (12) communicated with the fixing groove (11) is formed in the side face of the fixing box (1), an operating plate (3) covering the fixing hole (12) is rotatably connected to the fixing hole (12), and a limiting mechanism (5) for limiting the rotation of the operating plate (3) is arranged on the fixing box (1); the clamping groove (14) is formed in one side, away from a vertical central axis of the fixed box (1), of the fixed hole (12), the clamping hole (15) communicated with the clamping groove (14) is formed in the side wall of the fixed box (1), the limiting mechanism (5) comprises a limiting plate (55) fixedly connected with the operating plate (3) towards one side of the fixed box (1) and a clamping block (51) arranged in the clamping groove (14), a clamping rod (52) is detachably connected with one end, towards the clamping hole (15), of the clamping block (51), the clamping rod (52) penetrates through the clamping hole (15), a jack (551) for embedding of the clamping block (51) is formed in one side, towards the clamping groove (14), of the limiting plate (55), and when the clamping block (51) is embedded into the jack (551), the operating plate (3) is in a horizontal state.

2. A vacuum interrupter as claimed in claim 1, characterized in that: an operation disc (54) is arranged on one side, away from the clamping block (51), of the clamping rod (52), and the diameter of the operation disc (54) is larger than that of the clamping hole (15).

3. A vacuum interrupter as claimed in claim 2, characterized in that: a spring (53) is arranged in the clamping groove (14), two ends of the spring (53) are respectively abutted against one side, far away from the fixing hole (12), of the clamping groove (14) and the clamping block (51), and the spring (53) is in a compression state.

4. A vacuum interrupter as claimed in claim 3, characterized in that: the spring (53) is sleeved outside the clamping rod (52).

5. A vacuum interrupter as claimed in claim 1, characterized in that: one side, facing the clamping groove (14), of the operating plate (3) is provided with a first groove (32), a magnet (33) is arranged in the first groove (32), a second groove (18) opposite to the first groove (32) is formed in the inner wall of the fixing hole (12), and an iron sheet (19) is arranged in the second groove (18).

6. A vacuum interrupter as claimed in claim 1, characterized in that: the end face of the fixture block (51) far away from the fixture rod (52) is provided with an arc-shaped face (511).

7. A vacuum interrupter as claimed in claim 1, characterized in that: and a handle (31) is arranged on one side of the operating plate (3) far away from the fixed box (1).

8. A vacuum interrupter as claimed in claim 1, characterized in that: a support frame (16) is arranged below the fixed box (1).

9. A vacuum interrupter as claimed in claim 1, characterized in that: and a heat dissipation hole (17) communicated with the fixing groove (11) is formed below the fixing box (1).