CN113223880B

CN113223880B - Interlocking system for grounding switch of electrical cabinet

Info

Publication number: CN113223880B
Application number: CN202110527006.4A
Authority: CN
Inventors: 冉子晗; 崔天赢; 关山; 辛业春
Original assignee: Jilin Kechuang Electric Power Co ltd; Northeast Dianli University
Current assignee: Jilin Kechuang Electric Power Co ltd; Northeast Electric Power University
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-11-04
Anticipated expiration: 2041-05-14
Also published as: CN113223880A

Abstract

The invention belongs to the technical field of earthing switch interlocking systems, and particularly relates to an interlocking system of an earthing switch for an electric cabinet, which comprises a cabinet body, wherein an underframe is arranged in the cabinet body, a contact is arranged at one end of the underframe, a shaft lever is rotatably connected in the underframe, a first auxiliary lever is fixedly connected at one end of the shaft lever, a first connecting lug is rotatably connected at one end of the first auxiliary lever, which is far away from the shaft lever, a straight lever is fixedly connected at one end of the first connecting lug, a second connecting lug is fixedly connected at one end of the straight lever, which is far away from the first connecting lug, a second auxiliary lever is rotatably connected at one end of the second connecting lug, a main lever is fixedly connected in the second auxiliary lever, a contact knife is fixedly connected in the middle of the shaft lever, two ends of the main lever are connected with the side wall of the cabinet body through bearings, one end of the main lever extends to the outside of the cabinet body, and a rotating block is fixedly connected with the main lever, so that the problem that the earthing switch cannot be adjusted before the electric cabinet is opened and operators are unprotected is solved.

Description

Interlocking system for grounding switch of electrical cabinet

Technical Field

The invention belongs to the technical field of earthing switch interlocking systems, and particularly relates to an interlocking system of an earthing switch for an electrical cabinet.

Background

The grounding switch is a mechanical grounding device which releases static electricity of the maintained equipment and a return circuit and ensures the personal safety of maintenance personnel during power failure maintenance. The electric cabinet can endure current for a certain time under abnormal conditions (such as short circuit), but does not pass load current under normal conditions, and is usually a part of an isolating switch; in view of the problems exposed during the use of the prior art earthing switch interlocking system, there is a need for structural improvement and optimization of the earthing switch interlocking system.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an interlocking system for an earthing switch of an electrical cabinet, which has the characteristics of regulating the earthing switch and a knob switch door.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an interlock system for earthing switch of regulator cubicle, includes the cabinet body, the internally mounted of the cabinet body has the chassis, the contact is installed to the one end of chassis, the inside of chassis is rotated and is connected with the axostylus axostyle, the first auxiliary rod of one end fixedly connected with of axostylus axostyle, the one end rotation that the axostylus axostyle was kept away from to first auxiliary rod is connected with first engaging lug, the one end fixedly connected with straight-bar of first auxiliary rod is kept away from to first engaging lug, the one end fixedly connected with second engaging lug of first engaging lug is kept away from to the straight-bar, the one end rotation that the straight-bar was kept away from to the second engaging lug is connected with the second auxiliary rod, the inside fixedly connected with mobile jib of second auxiliary rod, the middle part fixedly connected with touch sword of axostylus axostyle.

As a preferred technical scheme of the interlocking system of the grounding switch for the electrical cabinet, two ends of the main rod are connected with the side wall of the cabinet body through bearings, wherein one end of the main rod extends to the outside of the cabinet body and is fixedly connected with a rotating block.

According to the preferred technical scheme of the interlocking system of the grounding switch for the electrical cabinet, the positioning seat is fixed at the front end of the upper inner wall and the lower inner wall of the cabinet body, the straight groove is formed in the positioning seat, the arc-shaped groove is formed in one side of the straight groove, the first limiting block and the second limiting block are connected to the inside of the straight groove in a sliding mode, and one end of the first limiting block and one end of the second limiting block are connected with the support.

According to the preferred technical scheme of the interlocking system of the grounding switch for the electrical cabinet, one side, far away from a support, of the bottom of a positioning seat is rotatably connected with a driving rod, one end, far away from the positioning seat, of the driving rod is rotatably connected with a driven rod, one end, far away from the driving rod, of the driven rod is rotatably connected with one end of the support, far away from the end fixed with the driven rod, of the support is fixedly provided with a back door.

As the preferred technical scheme of the interlocking system of the grounding switch for the electrical cabinet, a connecting rod is fixedly connected between the driven rods at two ends.

As the preferred technical scheme of the interlocking system of the grounding switch for the electric cabinet, the knob is mounted at the top of the cabinet body, and the bottom end of the knob penetrates through the top of the cabinet body to extend to the inside to be fixedly connected with one end of the active rod.

As the preferred technical scheme of the interlocking system of the grounding switch for the electrical cabinet, the outer layers of the rotating block and the knob are provided with rubber sleeves.

As a preferred technical scheme of the interlocking system of the grounding switch for the electrical cabinet, the front end of the contact knife is provided with a groove.

Compared with the prior art, the invention has the beneficial effects that: through the installation interlock system, be of value to can directly adjust earthing switch's connection and disconnection outside the regulator cubicle, can not adjust earthing switch before having solved and opening the regulator cubicle, lose the problem of protection to operating personnel, open the regulator cubicle back door through installing outside knob, be of value to avoid directly opening the back door with the hand, through at knob externally mounted rubber sleeve, be of value to avoiding operating personnel to produce static, solved operating personnel and produced static, lead to the fact the problem of harm to safety.

Drawings

The accompanying drawings, which 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 principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic cross-sectional view of an electrical cabinet according to the present invention;

FIG. 2 is a schematic structural diagram of the front end of an interlocking device in the electrical cabinet according to the present invention;

FIG. 3 is a schematic diagram of a rear end structure of an interlocking device in the electrical cabinet according to the present invention;

FIG. 4 is a structural diagram illustrating a rear door closed state of the electrical cabinet according to the present invention;

FIG. 5 is a structural schematic diagram of an electrical cabinet rear door in an open state according to the present disclosure;

in the figure: 1. a cabinet body; 2. a chassis; 3. a contact; 4. a shaft lever; 5. a first sub-lever; 6. a first connecting lug; 7. a straight rod; 8. a second engaging lug; 9. a second sub-bar; 10. a main rod; 11. contacting a knife; 12. rotating the block; 13. positioning seats; 14. a straight groove; 15. an arc-shaped slot; 16. a first stopper; 17. a second limiting block; 18. a support; 19. a driving lever; 20. a driven lever; 21. a connecting rod; 22. a knob; 23. a rear door.

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.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides an interlock for earthing switch of regulator cubicle, includes the cabinet body 1, its characterized in that: the internally mounted of the cabinet body 1 has chassis 2, contact 3 is installed to the one end of chassis 2, the inside of chassis 2 is rotated and is connected with axostylus axostyle 4, the first auxiliary rod 5 of one end fixedly connected with of axostylus axostyle 4, the one end that first auxiliary rod 5 kept away from axostylus axostyle 4 is rotated and is connected with first engaging lug 6, the one end fixedly connected with straight-bar 7 that first auxiliary rod 5 was kept away from to first engaging lug 6, the one end fixedly connected with second engaging lug 8 of first engaging lug 6 is kept away from to straight-bar 7, the inside fixedly connected with mobile jib 10 of the vice pole 9 of second, the middle part fixedly connected with touching sword 11 of axostylus axostyle 4, in this embodiment, it rotates to drive second auxiliary rod 9 when rotating mobile jib 10, second auxiliary rod 9 drives straight-bar 7 through second engaging lug 8 and goes up and down, straight-bar 7 drives first auxiliary rod 5 through first engaging lug 6 and rotates, first auxiliary rod 5 drives touching sword 11 through axostylus axostyle 4 and rotates, make touching sword 11 and contact 3 break off with contact when mobile jib 10 anticlockwise rotation.

Specifically, the both ends of mobile jib 10 are passed through the bearing and are connected with the lateral wall of the cabinet body 1, and wherein the one end of mobile jib 10 extends to the outside of the cabinet body 1, and fixedly connected with commentaries on classics piece 12, in this embodiment through rotating commentaries on classics piece 12 and drive mobile jib 10 and rotate.

Specifically, the upper and lower inner wall front end of the cabinet body 1 is fixed with positioning seat 13, the rectilinear groove 14 has been seted up to positioning seat 13's inside, arc wall 15 has been seted up to one side of rectilinear groove 14, the inside sliding connection of rectilinear groove 14 has first stopper 16 and second stopper 17, the one end of first stopper 16 and second stopper 17 is connected with support 18, through first stopper 16 and second stopper 17 along rectilinear groove 14 and the inside removal of arc wall 15 when making support 18 remove in this embodiment.

Specifically, one side of the bottom of the positioning seat 13, which is away from the support 18, is rotatably connected with a driving rod 19, one end of the driving rod 19, which is away from the positioning seat 13, is rotatably connected with a driven rod 20, one end of the driven rod 20, which is away from the driving rod 19, is rotatably connected with one end of the support 18, which is away from the driven rod 20, is fixed with a back door 23, in this embodiment, when the driving rod 19 rotates, the driven rod 20 is driven to move and rotate simultaneously, the driven rod 20 drives the support 18 to move and rotate, and the support 18 drives the driven rod 20 to open and close.

Specifically, a connecting rod 21 is fixedly connected between the two driven rods 20, and in this embodiment, one end is controlled to drive the other end to move simultaneously.

Specifically, knob 22 is installed at the top of cabinet body 1, and the bottom of knob 22 passes the top of cabinet body 1 and extends to inside and the one end fixed connection of active rod 19, drives active rod 19 through rotating knob 22 in this embodiment and rotates.

Specifically, the outer layers of the rotary block 12 and the knob 22 are provided with rubber sleeves, and in the embodiment, the rubber sleeves are insulated by rubber to prevent static electricity.

Specifically, the front end of the contact blade 11 is provided with a groove, and in this embodiment, when the contact blade 11 is connected with the contact 3, the protrusion of the contact 3 is embedded in the groove of the contact blade 11, so that the connection is more secure.

The working principle and the using process of the invention are as follows: firstly, the main rod 10 is driven to rotate through the rotating block 12, the second auxiliary rod 9 is driven to rotate when the main rod 10 is rotated, the second auxiliary rod 9 drives the straight rod 7 to lift through the second connecting lug 8, the straight rod 7 drives the first auxiliary rod 5 to rotate through the first connecting lug 6, the first auxiliary rod 5 drives the contact knife 11 to rotate through the shaft rod 4, when the main rod 10 rotates anticlockwise to disconnect the contact knife 11 from the contact 3, the main rod 10 rotates clockwise to enable the contact knife 11 to be in contact with the contact 3; when the back door needs to be opened, the clockwise rotation knob 22 drives the driving rod 19 to rotate, when the driving rod 19 rotates, the driven rod 20 is driven to move, the driven rod 20 drives the support 18 to move, meanwhile, the second limiting block 17 slides to the top end inside the straight groove 14, the first limiting block 16 slides to the intersection of the straight groove 14 and the arc-shaped groove 15, then the second limiting block 17 slides to the top end inside the arc-shaped groove 15, and the back door 23 is driven to rotate through the support 18 to be opened.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An interlock system for a grounding switch of an electrical cabinet comprises a cabinet body (1), and is characterized in that: the improved multifunctional wardrobe is characterized in that an underframe (2) is installed inside the wardrobe body (1), a contact (3) is installed at one end of the underframe (2), a shaft lever (4) is rotatably connected inside the underframe (2), a first auxiliary lever (5) is fixedly connected at one end of the shaft lever (4), a first connecting lug (6) is rotatably connected at one end of the first auxiliary lever (5) far away from the shaft lever (4), a straight lever (7) is fixedly connected at one end of the first connecting lug (6) far away from the first connecting lug (7), a second connecting lug (8) is fixedly connected at one end of the second connecting lug (8) far away from the straight lever (7), a second auxiliary lever (9) is rotatably connected at one end of the second connecting lug (8) far away from the straight lever (7), a main lever (10) is fixedly connected inside the second auxiliary lever (9), and a contact knife (11) is fixedly connected in the middle of the shaft lever (4); two ends of the main rod (10) are connected with the side wall of the cabinet body (1) through bearings, wherein one end of the main rod (10) extends to the outside of the cabinet body (1) and is fixedly connected with a rotating block (12); a positioning seat (13) is fixed at the front end of the upper inner wall and the lower inner wall of the cabinet body (1), a straight-going groove (14) is formed in the positioning seat (13), an arc-shaped groove (15) is formed in one side of the straight-going groove (14), a first limiting block (16) and a second limiting block (17) are connected in the straight-going groove (14) in a sliding mode, and a support (18) is connected at one end of the first limiting block (16) and one end of the second limiting block (17); one side, far away from the support (18), of the bottom of the positioning seat (13) is rotatably connected with a driving rod (19), one end, far away from the positioning seat (13), of the driving rod (19) is rotatably connected with a driven rod (20), one end, far away from the driving rod (19), of the driven rod (20) is rotatably connected with one end of the support (18), and one end, far away from the driven rod (20), of the support (18) is fixedly provided with a rear door (23); a connecting rod (21) is fixedly connected between the two driven rods (20); the top of the cabinet body (1) is provided with a knob (22), and the bottom end of the knob (22) penetrates through the top of the cabinet body (1) and extends to the inside and one end of the driving rod (19) to be fixedly connected.

2. The interlock system of the grounding switch for the electrical cabinet according to claim 1, wherein: the outer layers of the rotating block (12) and the knob (22) are provided with rubber sleeves.

3. The interlock system of the grounding switch for the electrical cabinet according to claim 1, wherein: the front end of the contact knife (11) is provided with a groove.