CN210296915U

CN210296915U - Interlocking structure suitable for 6kV switch cabinet door

Info

Publication number: CN210296915U
Application number: CN201921437015.9U
Authority: CN
Inventors: 张晓铭; 徐帅; 万闻炜
Original assignee: Shanghai Caojing Cogeneration Co ltd
Current assignee: Shanghai Caojing Cogeneration Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-04-10
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses an interlocking structure suitable for 6kV cubical switchboard door, including the cubical switchboard body, and the cabinet door that links to on the cubical switchboard body, still include the first slider that links to on the cabinet door, the first slider even has the second slider through first connecting rod, the second slider even has the third slider through the second connecting rod, the third slider even has the fourth slider through the third connecting rod; this internal level to slide rail that is equipped with of cubical switchboard, the second slider, the fourth slider links on the slide rail to along slide rail level to the removal, this internal top of cubical switchboard is equipped with a perpendicular to spout, the third slider is located in the spout, and along the perpendicular to removal of spout, be equipped with the fourth connecting rod in the spout, the lower extreme of fourth connecting rod links to each other with the third slider, the top of cubical switchboard body is worn to establish to the upper end of fourth connecting rod, and even there is the connecting plate in the outside at cubical switchboard body top. The utility model discloses a chain technique between circuit breaker and the cabinet door can ensure the problem of the safety of staff when the operation.

Description

Interlocking structure suitable for 6kV switch cabinet door

Technical Field

The utility model relates to a circuit breaker cubical switchboard technique, more specifically say, relate to an interlocking structure suitable for on 6kV cubical switchboard door.

Background

The high-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like, and comprises a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic coincidence and sectionalizer, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the like.

Statistics of a large number of electrical accidents over the years shows that human body electric shock casualty accidents and electrical equipment accidents are often in direct relation with technical business levels of electrical workers, operation is strictly carried out according to electrical safety work rules, misoperation accidents can be effectively reduced and avoided, and in order to prevent accidents caused by the fact that field operators unconsciously carry out wrong operation, forced competition devices or prompt measures are added in the design of a switch cabinet besides training of the operators. For a high-voltage switch cabinet, five misoperation prevention functions are required to be provided, which are called five-prevention interlocking for short, namely, the circuit breaker is prevented from being switched on or off by mistake, an upper isolating switch and a lower isolating switch are prevented from being switched on or off with load or a handcart of the circuit breaker is prevented from being pushed in or pulled out with load, a grounding switch is prevented from being switched on or a temporary grounding wire is prevented from being connected with electricity, the electricity is prevented from being transmitted when the temporary grounding wire or the grounding switch is switched on, and people are prevented from. However, the prior art does not have the technology of interlocking the circuit breaker and the cabinet door, and the safety of workers during operation cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that exists among the prior art, the utility model aims at providing a be applicable to the interlocking structure on the 6kV cubical switchboard door, realized the interlocking technique between circuit breaker and the cabinet door, can ensure the problem of the safety of staff when the operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a linkage structure suitable for a 6kV switch cabinet door comprises a switch cabinet body, a cabinet door and a first sliding block, wherein the cabinet door is connected to the switch cabinet body, the first sliding block is connected to the cabinet door through a first connecting rod, the second sliding block is connected to a third sliding block through a second connecting rod, and the third sliding block is connected to a fourth sliding block through a third connecting rod;

a horizontal sliding rail is arranged in the switch cabinet body, the second sliding block and the fourth sliding block are connected to the sliding rail and move horizontally along the sliding rail, a vertical sliding groove is formed in the top of the switch cabinet body, the third sliding block is arranged in the sliding groove and moves vertically along the sliding groove, a fourth connecting rod is arranged in the sliding groove, the lower end of the fourth connecting rod is connected with the third sliding block, the upper end of the fourth connecting rod penetrates through the top of the switch cabinet body, and a connecting plate is connected to the outer side of the top of the switch cabinet body;

and a return spring is sleeved on the fourth connecting rod between the lower surface of the connecting plate and the outer surface of the top of the switch cabinet body.

The first sliding block, the first connecting rod, the second sliding block, the second connecting rod, the third sliding block, the third connecting rod and the fourth sliding block are connected through rotating shafts.

One end of the sliding rail is connected to the inner side wall of the switch cabinet body opposite to the cabinet door, and a clamping groove matched with the third sliding block is arranged on the position, corresponding to the third sliding block, of the sliding rail.

And a baffle is arranged on the slide rail between the inner side wall of the switch cabinet body with the opposite cabinet door and the fourth slide block.

And a spring piece is arranged on the baffle and is in contact with the fourth sliding block.

A movable groove is formed in the inner side face of the switch cabinet body at the connecting position of the cabinet door and the switch cabinet body, and the first sliding block is located in the movable groove.

The switch cabinet is characterized in that a limiting point is arranged on the outer side surface of the switch cabinet body at the connecting position of the cabinet door and the switch cabinet body, and a groove is formed in the top of the first sliding block.

In the technical scheme, the utility model provides a be applicable to the interlocking structure on the 6kV cubical switchboard door, solved and still not have circuit breaker and the chain technique of cabinet door among the prior art, can not ensure the problem of the safety of staff when the operation. And simple structure, convenient assembling, easy operation has made things convenient for the use, has reduced the potential safety hazard, has improved work efficiency.

Drawings

Fig. 1 is a schematic view of the interlocking structure of the present invention in a state of closing the cabinet door;

fig. 2 is a schematic view of the interlocking structure of the present invention in a state of opening the cabinet door;

FIG. 3 is a schematic view of the interlocking structure of the present invention in a state ready to close the cabinet door;

fig. 4 is an enlarged view of a portion a in fig. 3.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Please refer to fig. 1 to 4, the present invention provides a linkage structure for a 6kV switch cabinet door, which includes a switch cabinet body 1 and a cabinet door 2 connected to the switch cabinet body 1, and the above is the prior art and will not be described herein again. Different from the prior art, the cabinet door further comprises a first sliding block 3 connected to the cabinet door 1, the first sliding block 3 is connected with a second sliding block 5 through a first connecting rod 4, the second sliding block 5 is connected with a third sliding block 7 through a second connecting rod 6, and the third sliding block 7 is connected with a fourth sliding block 9 through a third connecting rod 8.

Preferably, be connected with a horizontal to slide rail 10 in the cubical switchboard body 1 on the inside wall relative to cabinet door 2, second slider 5, fourth slider 9 are installed on slide rail 10, and move to the level along slide rail 10, the top is connected with a vertical to spout 11 in the cubical switchboard body 1, third slider 7 is installed in spout 11, and move to the perpendicular along spout 11, still install fourth connecting rod 12 in the spout 11, the lower extreme of fourth connecting rod 12 links to each other with third slider 7, the top of cubical switchboard body 1 is worn to establish by the upper end of fourth connecting rod 12, and even there is connecting plate 13 in the outside at cubical switchboard body 1 top, the top of connecting plate 13 is the operating position of circuit breaker.

Preferably, a return spring 14 is sleeved on the fourth connecting rod 12 between the lower surface of the connecting plate 13 and the outer surface of the top of the switch cabinet body 1, so that the connecting plate 13 is convenient to return when the cabinet door 2 is closed.

Preferably, a clamping groove 15 matched with the third slider 7 in shape is arranged at a position of the sliding rail 10 corresponding to the third slider 7, and when the cabinet door 2 is opened, the third slider 7 moves downwards along the sliding groove 11 and is clamped in the clamping groove 15, so that the cabinet door 2 can be positioned and is always in a door opening state.

Preferably, a baffle 16 is installed on the slide rail 10 between the connecting end of the slide rail 10 and the fourth slider 9, a spring leaf 17 is connected to the baffle 16, the spring leaf 17 contacts with the fourth slider 9, when the cabinet door 2 is opened, the fourth slider 9 moves rightwards along the slide rail 10, when the fourth slider touches the spring leaf 17, the fourth slider is limited and cannot move rightwards any more, and the spring leaf 17 plays a role in buffering at the same time.

Preferably, the first slider 3, the first connecting rod 4, the second slider 5, the second connecting rod 6, the third slider 7, the third connecting rod 8 and the fourth slider 9 are connected through a rotating shaft, so as to form a connecting rod structure.

Preferably, a movable groove 18 is formed in the inner side surface of the switch cabinet body 1 located at the connecting position with the cabinet door 2, and the first sliding block 3 is located in the movable groove 18.

Preferably, a limiting point 19 is arranged on the inner side surface of the switch cabinet body 1 at the connecting position with the cabinet door 2, and an inverted triangular groove 20 is formed at the top of the first sliding block 3.

During the use, when cabinet door 1 is opened to needs and the operation is carried out, only need place the circuit breaker in the top of connecting plate 13, when the circuit breaker begins work, under the effect of gravity, drive fourth connecting rod 12 and promote third slider 7 and begin the downstream, promote second connecting rod 6 simultaneously, third connecting rod 8 drives second slider 5, fourth slider 9 is along slide rail 10 removal in opposite directions, second slider 5 promotes first connecting rod 4 and drives first slider 3 and remove to cubical switchboard body 1 outside along activity groove 18, cabinet door 10 is opened under first slider 3 effect, third slider 7 is located the card and goes into recess 15 this moment, make the axial central line of third slider 7 be located slide rail 10 below, thereby make cabinet door 1 can be in the open mode always. When the breaker is separated from the connecting plate 13, when the breaker is not in operation, only the cabinet door 1 needs to be lifted outwards by a small section (as arrow direction in fig. 3), so that the cabinet door 1 rotates around the limiting point 19, the lower end of the cabinet door 1 is clamped into the inverted triangular groove 20 of the first slider 3, the first slider 3 is pulled to move outwards by a small end distance, the first connecting rod 4 is pulled to drive the second slider 5 to move rightwards by a small end distance, the second connecting rod 6 is pulled to separate the third slider 7 from the clamping groove 15, and the fourth connecting rod 12 automatically moves upwards under the action of the reset spring 14, so that the cabinet door 1 is closed.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides an interlocking structure suitable for on 6kV cubical switchboard door, includes the cubical switchboard body, and links in the cabinet door on the cubical switchboard body, its characterized in that: the cabinet door further comprises a first sliding block connected to the cabinet door, the first sliding block is connected with a second sliding block through a first connecting rod, the second sliding block is connected with a third sliding block through a second connecting rod, and the third sliding block is connected with a fourth sliding block through a third connecting rod;

2. The interlocking structure suitable for 6kV switch cabinet doors according to claim 1, wherein: the first sliding block, the first connecting rod, the second sliding block, the second connecting rod, the third sliding block, the third connecting rod and the fourth sliding block are connected through rotating shafts.

3. The interlocking structure suitable for 6kV switch cabinet doors according to claim 1, wherein: one end of the sliding rail is connected to the inner side wall of the switch cabinet body opposite to the cabinet door, and a clamping groove matched with the third sliding block is arranged on the position, corresponding to the third sliding block, of the sliding rail.

4. The interlocking structure suitable for 6kV switch cabinet doors according to claim 3, wherein: and a baffle is arranged on the slide rail between the inner side wall of the switch cabinet body with the opposite cabinet door and the fourth slide block.

5. The interlocking structure suitable for 6kV switch cabinet doors according to claim 4, wherein: and a spring piece is arranged on the baffle and is in contact with the fourth sliding block.

6. The interlocking structure suitable for 6kV switch cabinet doors according to claim 1, wherein: a movable groove is formed in the inner side face of the switch cabinet body at the connecting position of the cabinet door and the switch cabinet body, and the first sliding block is located in the movable groove.

7. The interlocking structure suitable for 6kV switch cabinet doors according to claim 6, wherein: the switch cabinet is characterized in that a limiting point is arranged on the outer side surface of the switch cabinet body at the connecting position of the cabinet door and the switch cabinet body, and a groove is formed in the top of the first sliding block.