CN218449020U

CN218449020U - Novel safety interlocking device in fixed switchgear

Info

Publication number: CN218449020U
Application number: CN202222666446.0U
Authority: CN
Inventors: 孟祥军; 刘月侠; 王振芳
Original assignee: Anhui Changfeng Senyuan Electric Co ltd
Current assignee: Anhui Changfeng Senyuan Electric Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-02-03
Anticipated expiration: 2032-10-10

Abstract

The utility model relates to a switchgear field, specific be a novel safety interlock in fixed switchgear, including the cubical switchboard body, be equipped with back door and preceding lower door on the cubical switchboard body, the cubical switchboard body is gone up the parallel and is equipped with first link and second link, first spout has been seted up on the first link, the second spout has been seted up on the second link, sliding connection has the connecting rod on first link and the second link, the pressure spring has been cup jointed on the connecting rod, pressure spring bottom and second link top fixed connection, be equipped with the bracing piece on the connecting rod, the bracing piece is spacing to the pressure spring, the equal fixedly connected with stopper in connecting rod both ends, when needs closing device, can only close the back door earlier, the stopper limit connection of first spacing groove and connecting rod upper end pushes down the connecting rod, the stopper of connecting rod downstream connecting rod lower extreme corresponds with the spacing groove mouth of second, just can close preceding lower door this moment.

Description

Novel safety interlocking device in fixed switchgear

Technical Field

The utility model relates to a switchgear field, specific be a novel safety interlock in fixed switchgear.

Background

A switch cabinet is a common electrical device mainly including a circuit breaker, and is divided into a low-voltage switch cabinet and a high-voltage switch cabinet. When the cubical switchboard maintenance was overhauld, endangered personal safety in order to prevent that the cubical switchboard is electrified, the operating axis in the cubical switchboard of need rotatory earlier closes a floodgate ground connection with the earthing switch in the cubical switchboard, then just can open the preceding lower door or the back door of cubical switchboard and maintain and overhaul, but there are the back door and the preceding lower door switch of a lot of cubical switchboard not interlocking, promptly: the back door is opened and closed, the front lower door is opened and closed to be mutually independent, so that the grounding switch is easy to be grounded without closing, a maintainer opens the front lower door or the back door of the switch cabinet to maintain, or the grounding switch of the switch cabinet is disconnected and grounded by mistakenly separating the brake in the process of opening the door to maintain, so that the electric shock danger is easy to occur.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects mentioned in the background art, the utility model aims to provide a novel safety interlocking device in a fixed switch device.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a novel safety interlock in fixed switchgear, including the cubical switchboard body, be equipped with back door and preceding lower door on the cubical switchboard body, the cubical switchboard body is gone up the parallel and is equipped with first link and second link, first spout has been seted up on the first link, the second spout has been seted up on the second link, sliding connection has the connecting rod on first link and the second link, the pressure spring has been cup jointed on the connecting rod, pressure spring bottom and second link top fixed connection, be equipped with the bracing piece on the connecting rod, the bracing piece carries on spacingly to the pressure spring, the equal fixedly connected with stopper in connecting rod both ends.

Furthermore, the rear door side wall is fixedly connected with a first mounting plate through a bolt, the side end of the first mounting plate is fixedly connected with a first connecting plate, the first connecting plate is in limit connection with a first sliding groove, a first limit groove is formed in the first connecting plate, and the first limit groove is in limit connection with a limit block at the upper end of the connecting rod.

Furthermore, the side wall of the front lower door is fixedly connected with a second mounting plate through a bolt, the side end of the second mounting plate is fixedly connected with a second connecting plate, the second connecting plate is in limit connection with a second sliding groove, a second limit groove is formed in the second connecting plate, and the second limit groove is in limit connection with a limit block at the lower end of the connecting rod.

Furthermore, the first connecting frame and the second connecting frame are symmetrically arranged in the vertical direction.

Furthermore, the upper part of the first limiting groove is a chute, and the lower part of the first limiting groove is a U-shaped groove.

Furthermore, the second limiting groove is in an oblique U shape.

The utility model has the advantages that: when needs closing equipment, can only close the back door earlier, the stopper spacing connection of first spacing groove and connecting rod upper end pushes down the connecting rod, the stopper and the second spacing groove notch of connecting rod downstream end correspond, just can close preceding lower door this moment, when needs open switchgear, can only open preceding lower door earlier, upwards promote the connecting rod, the stopper of connecting rod upper end is located the upper portion chute notch of first spacing groove this moment, the back door can be opened this moment, the mistake has been avoided touching the earthing brake and has been produced the risk of electrocution.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts;

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the connecting rod of the present invention;

fig. 3 is a schematic diagram of the internal structure of the present invention.

In the figure: the switch cabinet comprises a switch cabinet body 1, a first fixing plate 11, a first connecting frame 12, a first sliding chute 121, a second fixing plate 13, a second connecting frame 14, a second sliding chute 141, a connecting rod 15, a pressure spring 16, a supporting rod 17, a limiting block 18, a rear door 2, a first mounting plate 21, a first connecting plate 22, a first limiting groove 23, a front lower door 3, a second mounting plate 31, a second connecting plate 32 and a second limiting groove 33.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a novel safety interlock in fixed switchgear, including the cubical switchboard body 1, be equipped with back door 2 and preceding lower door 3 on the cubical switchboard body 1, the cubical switchboard body 1 is gone up the parallel and is equipped with first link 12 and second link 14, first spout 121 has been seted up on the first link 12, second spout 141 has been seted up on the second link 14, first link 12 sets up at vertical direction symmetry with second link 14, sliding connection has connecting rod 15 on first link 12 and the second link 14, pressure spring 16 has been cup jointed on connecting

rod

15, 16 bottom and the 14 top fixed connection of second link of pressure spring, be equipped with bracing piece 17 on the connecting rod 15, bracing piece 17 is spacing to the pressure spring, connecting rod 15 both ends all fixedly connected with stopper 18.

The side wall of the back door 2 is fixedly connected with a first mounting plate 21 through a bolt, the side end of the first mounting plate 21 is fixedly connected with a first connecting plate 22, the first connecting plate 22 is in limit connection with a first sliding groove 121, a first limiting groove 23 is formed in the first connecting plate 22, the upper portion of the first limiting groove 23 is a chute, the lower portion of the first limiting groove is a U-shaped groove, and the first limiting groove 23 is in limit connection with a limiting block 18 at the upper end of a connecting rod 15.

The lateral wall of the front lower door 3 is fixedly connected with a second mounting plate 31 through a bolt, the side end of the second mounting plate 31 is fixedly connected with a second connecting plate 32, the second connecting plate 32 is in limit connection with a second sliding groove 141, a second limiting groove 33 is formed in the second connecting plate 32, the second limiting groove 33 is in an oblique U shape, and the second limiting groove 33 is in limit connection with a limiting block 18 at the lower end of the connecting rod 15.

The working principle is as follows: when equipment needs to be closed, the rear door 2 can only be closed firstly, when the rear door 2 is closed, the first limiting groove 23 is in limiting connection with the limiting block 18 at the upper end of the connecting rod 15 to press the connecting rod 15 downwards, the limiting block 18 at the lower end of the connecting rod 15 moves downwards to correspond to the notch of the second limiting groove 33, the front lower door 3 is closed at the moment, the limiting block 18 at the lower end of the connecting rod 15 is in limiting connection with the limiting block 18 at the lower end of the connecting rod 15 through the second limiting groove 33, the connecting rod 15 continues to move downwards until the front lower door 3 is closed, when the switch equipment needs to be opened, the front lower door 3 can only be opened firstly, the limiting block 18 at the upper end of the connecting rod 15 is in the upper chute notch of the first limiting groove 23 at the moment, and the rear door 2 can be opened at the moment.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a novel safety interlock in fixed switchgear, including the cubical switchboard body (1), a serial communication port, be equipped with back door (2) and preceding lower door (3) on the cubical switchboard body (1), the cubical switchboard body (1) is gone up the parallel and is equipped with first link (12) and second link (14), first spout (121) have been seted up on first link (12), second spout (141) have been seted up on second link (14), sliding connection has connecting rod (15) on first link (12) and second link (14), pressure spring (16) have been cup jointed on connecting rod (15), pressure spring (16) bottom and second link (14) top fixed connection, be equipped with bracing piece (17) on connecting rod (15), bracing piece (17) are spacing to the pressure spring, connecting rod (15) both ends are all fixedly connected with stopper (18).

2. The novel safety interlocking device in the fixed switch equipment according to claim 1, characterized in that the side wall of the back door (2) is fixedly connected with a first mounting plate (21) through bolts, the side end of the first mounting plate (21) is fixedly connected with a first connecting plate (22), the first connecting plate (22) is in limit connection with the first sliding groove (121), the first connecting plate (22) is provided with a first limit groove (23), and the first limit groove (23) is in limit connection with a limit block (18) at the upper end of the connecting rod (15).

3. The novel safety interlocking device in the fixed switchgear according to claim 1, wherein the side wall of the front lower door (3) is fixedly connected with a second mounting plate (31) through bolts, the side end of the second mounting plate (31) is fixedly connected with a second connecting plate (32), the second connecting plate (32) is in limit connection with a second sliding groove (141), a second limiting groove (33) is formed in the second connecting plate (32), and the second limiting groove (33) is in limit connection with a limiting block (18) at the lower end of the connecting rod (15).

4. A safety interlock device in a fixed switchgear according to claim 1, characterized in that the first connecting frame (12) and the second connecting frame (14) are arranged symmetrically in the vertical direction.

5. The safety interlock device of claim 2, wherein the first limit groove (23) is a chute at the upper part and a "U" shaped groove at the lower part.

6. A safety interlock device as claimed in claim 3, wherein the second limiting groove (33) is formed in a shape of a slanted "U".