阅读说明：本技术 一种高压柜的门联锁装置 (Door interlocking device of high-voltage board ) 是由 叶建川 王涛 于 2021-05-24 设计创作，主要内容包括：本发明属于电气柜技术领域,具体涉及一种高压柜的门联锁装置。其技术方案为：一种高压柜的门联锁装置,包括滑动连接于高压柜的柜门内侧的联锁板,联锁板上固定有若干与环网开关的开关连锁件配合的开关联锁挂钩；高压柜内还固定有若干开关支撑梁,开关支撑梁上设置有挂台,联锁板上固定有与挂台配合的门锁挂钩。本发明提供了一种环网开关与高压柜的柜门可联锁的门联锁装置。(The invention belongs to the technical field of electrical cabinets, and particularly relates to a door interlocking device of a high-voltage cabinet. The technical scheme is as follows: a door interlocking device of a high-voltage cabinet comprises an interlocking plate which is connected to the inner side of a cabinet door of the high-voltage cabinet in a sliding manner, wherein a plurality of switch interlocking hooks which are matched with a switch interlocking piece of a ring network switch are fixed on the interlocking plate; a plurality of switch supporting beams are further fixed in the high-voltage cabinet, a hanging table is arranged on each switch supporting beam, and a door lock hook matched with the hanging table is fixed on the interlocking plate. The invention provides a door interlocking device capable of interlocking a looped network switch and a cabinet door of a high-voltage cabinet.)

1. A door interlocking device of a high-voltage cabinet is characterized by comprising an interlocking plate (1) connected to the inner side of a cabinet door of the high-voltage cabinet in a sliding manner, wherein a plurality of switch interlocking hooks (3) matched with a switch interlocking piece (21) of a ring network switch (2) are fixed on the interlocking plate (1); a plurality of switch supporting beams (4) are further fixed in the high-voltage cabinet, hanging platforms (41) are arranged on the switch supporting beams (4), and door lock hooks (5) matched with the hanging platforms (41) are fixed on the interlocking plates (1).

2. The door interlock device of a high voltage cabinet according to claim 1, wherein the switch interlock hook (3) is provided with an open slot (31), and a padlock step (311) for hooking the boss of the switch interlock member (21) is provided in the open slot (31) of the switch interlock hook (3).

3. A door interlock device for a high voltage cabinet according to claim 2, characterized in that the outside of the open slot (31) of the switch interlock hook (3) is gradually enlarged.

4. A door interlock device for a high voltage cabinet according to claim 2, characterized in that the padlock step (311) is directed downwards.

5. The door interlocking device of the high-voltage cabinet as claimed in claim 1, characterized in that the interlocking plate (1) comprises a longitudinal plate (11), a plurality of transverse plates (12) are arranged on the longitudinal plate (11), and the switch interlocking hook and the door lock hook (5) are fixed on the transverse plates (12).

6. The door interlock device of a high-voltage cabinet according to claim 1, characterized in that the interlock plate (1) is provided with a longitudinally arranged slot (13), a sliding rod (14) is fixed on the cabinet door of the high-voltage cabinet, and the sliding rod (14) is sleeved in the slot (13).

7. The door interlock device of a high-voltage cabinet according to claim 6, wherein the sliding rod (14) is provided with a stopper (141) for stopping the sliding rod (14) from coming out of the slot (13).

8. A door interlock device for a high voltage cabinet according to claim 1, characterized in that a handle (15) is fixed to said interlock plate (1).

9. The door interlock device for a high voltage cabinet according to claim 1, wherein the switch support beam (4) is provided with an opening (42) for the switch interlock hook (3) to extend into.

10. The door interlock device for a high voltage cabinet according to any one of claims 1 to 9, wherein the switch interlock hook (3) is connected to the interlock plate (1) by a bolt.

Technical Field

The invention belongs to the technical field of electrical cabinets, and particularly relates to a door interlocking device of a high-voltage cabinet.

Background

A plurality of ring network switches are installed in the high-voltage cabinet, and switch interlocking pieces are arranged on the ring network switches. When the ring network switch needs to be in an operation state, the cabinet door of the high-voltage cabinet needs to be locked. The looped netowrk switch of current high-voltage board can't interlock between the cabinet door of high-voltage board, leads to the high-voltage board cabinet door to close unreliable to the condition that the cabinet door of high-voltage board still can be opened when the looped netowrk switch is in the separating brake state appears, brings the risk of potential safety hazard and maloperation.

Disclosure of Invention

In order to solve the above problems in the prior art, an object of the present invention is to provide a door interlock device for interlocking a looped network switch and a cabinet door of a high voltage cabinet.

The technical scheme adopted by the invention is as follows:

a door interlocking device of a high-voltage cabinet comprises an interlocking plate which is connected to the inner side of a cabinet door of the high-voltage cabinet in a sliding manner, wherein a plurality of switch interlocking hooks which are matched with a switch interlocking piece of a ring network switch are fixed on the interlocking plate; a plurality of switch supporting beams are further fixed in the high-voltage cabinet, a hanging table is arranged on each switch supporting beam, and a door lock hook matched with the hanging table is fixed on the interlocking plate.

The interlocking plate can slide up and down relative to the cabinet door, and the switch supporting beam and the looped network switch are fixed, so that when the interlocking plate is at a low position, the switch interlocking piece blocks the switch interlocking hook, and the cabinet door of the high-voltage cabinet cannot be closed. When the interlocking plate is moved to a high position, the cabinet door of the high-voltage cabinet is closed, the switch interlocking hook is clamped into the switch interlocking piece, and then the cabinet door can be closed. After the cabinet door is closed, the interlocking plate is pulled downwards, and then the switch interlocking hook pulls the switch interlocking piece downwards. And at this moment, the door lock hook on the interlocking plate is hooked into the hanging table on the switch supporting beam, and the cabinet door cannot be directly opened. If the door needs to be opened, the interlocking plate needs to be pushed upwards. At this moment, if the looped netowrk switch is in when separating brake position, because switch self design, the unable rebound of switch interlock spare, then switch interlock spare blocks switch interlocking couple and interlocking board and shifts up, and the cabinet door can't be opened promptly. If the looped network switch is in the state of closing the earthing switch, the switch interlocking piece can move upwards due to the design of the switch. At the moment, the interlocking plate is pushed upwards, the door lock hook is separated from the hanging platform of the switch supporting beam, and therefore the cabinet door of the high-voltage cabinet can be opened. Because the looped netowrk switch has a plurality of, then when all looped netowrk switches all were in ground connection sword combined floodgate state, the cabinet door could be opened.

As a preferable scheme of the invention, an open slot is arranged on the switch interlocking hook, and a padlock step for hanging a boss of the switch interlocking piece is arranged in the open slot of the switch interlocking hook. One side of the open slot is opened, and the small-diameter end of the switch interlocking piece can be smoothly clamped into the open slot of the switch interlocking hook in the process that the interlocking plate is in a high position and is closed. The padlock step is arranged in the open slot, so that the large-diameter end of the switch interlocking piece can be hung on the padlock step, and the switch interlocking hook can pull the switch interlocking piece to move downwards. Switch even the latch fitting can move, has decided whether the interlocking board can move to whether indirect decision cabinet door can be opened, thereby looped netowrk switch's state has decided whether the cabinet door can be opened, realizes looped netowrk switch and cabinet door interlocking.

As a preferable scheme of the invention, the outer sides of the opening grooves of the switch interlocking hooks are gradually enlarged. The notch of the open slot of the switch interlocking hook is gradually increased, so that when the cabinet door is closed, the switch interlocking piece can be clamped into the open slot more easily.

As a preferred aspect of the present invention, the padlock step faces downward. The steps of the padlock steps are downward, so that the padlock steps can pull the switch interlocking piece to move downward, and the interlocking is realized.

As a preferable scheme of the invention, the interlocking plate comprises a longitudinal plate, a plurality of transverse plates are arranged on the longitudinal plate, and the switch interlocking hook and the door lock hook are both fixed on the transverse plates. The transverse plate extends out of the longitudinal plate, so that the switch interlocking hook and the door lock hook are convenient to install, and the interference between the interlocking plate and the looped network switch or the switch supporting beam is avoided.

As a preferable scheme of the invention, the interlocking plate is provided with a long hole which is longitudinally arranged, a sliding rod is fixed on a cabinet door of the high-voltage cabinet, and the sliding rod is sleeved in the long hole. When the interlocking plate moves relative to the cabinet door, the sliding rod always slides in the long hole, the interlocking plate can only move upwards or downwards, the limit position of the interlocking plate is limited, and the switch interlocking hook on the interlocking plate can be smoothly clamped with the switch interlocking piece.

As the preferable scheme of the invention, the sliding rod is provided with a limiting block for blocking the sliding rod from coming out of the long hole. The limiting block can block the interlocking plate, and the sliding rod is prevented from being separated from the long hole, so that the interlocking plate is separated from the cabinet door.

In a preferred embodiment of the present invention, a handle is fixed to the interlock plate. When the interlocking plate is moved upwards or downwards, the handle is pulled, and the operation is more convenient.

In a preferred embodiment of the present invention, the switch support beam is provided with an opening for inserting the switch interlock hook. The upper end of the switch supporting beam is provided with an opening, the switch interlocking hook can smoothly pass through the opening of the switch supporting beam, and then the switch interlocking hook can be clamped with the switch interlocking piece.

In a preferred embodiment of the present invention, the switch interlock hook is connected to the interlock plate by a bolt. The switch interlocking hook is connected with the interlocking plate through a bolt, so that the switch interlocking hook is convenient to disassemble and assemble.

The invention has the beneficial effects that:

according to the invention, when the ring network switch is in the opening position, due to the design of the switch, the switch interlocking piece cannot move upwards, the switch interlocking piece blocks the switch interlocking hook and the interlocking plate from moving upwards, the door lock hook is always hung in the hanging table of the switch supporting beam, and the cabinet door cannot be opened. When all looped netowrk switches are in ground connection sword combined floodgate state, because switch self design, switch interlock spare can the rebound. At the moment, the interlocking plate is pushed upwards, the door lock hook is separated from the hanging platform of the switch supporting beam, and therefore the cabinet door of the high-voltage cabinet can be opened. Switch even the latch fitting can move, has decided whether the interlocking board can move to whether indirect decision cabinet door can be opened, thereby looped netowrk switch's state has decided whether the cabinet door can be opened, realizes looped netowrk switch and cabinet door interlocking. The cabinet door of the high-voltage cabinet is reliably locked when the ring network switch is in the opening state, so that potential safety hazards and misoperation risks are avoided.

Drawings

FIG. 1 is a schematic diagram of the present invention with the switch support beam removed;

a partial enlarged view at a in fig. 2;

fig. 3 is an assembly view of the invention and a part of the structure of the ring network switch;

fig. 4 is a left side view of the ring network switch;

fig. 5 is an exploded view of the invention and the structure of a portion of the ring network switch;

fig. 6 is a schematic structural view of a switch support beam.

In the figure, 1-interlocking plate; 2-ring network switch; 3-switching an interlocking hook; 4-switching a support beam; 5-door lock hook; 11-a longitudinal plate; 12-a transverse plate; 13-long holes; 14-a slide bar; 15-a handle; 21-switch interlock; 31-open slots; 41-hanging a table; 42-opening; 141-a limiting block; 311-Padlock step.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 6, the door interlock device of the high-voltage board of the present embodiment includes an interlock plate 1 slidably connected to an inner side of a door of the high-voltage board, and a plurality of switch interlock hooks 3 engaged with a switch interlock member 21 of a ring network switch 2 are fixed on the interlock plate 1; a plurality of switch supporting beams 4 are further fixed in the high-voltage cabinet, hanging platforms 41 are arranged on the switch supporting beams 4, and door lock hooks 5 matched with the hanging platforms 41 are fixed on the interlocking plates 1.

Wherein, the model of the looped network switch 2 is SF6 inflatable switch. The looped network switch 2 is installed in the high-voltage board and is connected with the switch supporting beam 4. The ring network switch 2 has four states of door opening, grounding, locking and working. The ring network switch 2 is connected with a switch coupling piece 21, and when the ring network switch 2 is in a closing state, the switch coupling piece 21 cannot move upwards; when the ring network switch 2 is in a grounding switch closing state, the switch interlocking part 21 can move upwards.

Interlocking plate 1 can slide from top to bottom for the cabinet door, and switch supporting beam 4 and looped netowrk switch 2 are fixed, and then when interlocking plate 1 was in the low level, switch interlock piece 21 blockked switch interlocking couple 3, and the cabinet door of high-voltage board can't close. When the interlocking plate 1 is moved to a high position, the cabinet door of the high-voltage cabinet is closed, the switch interlocking hook 3 is clamped into the switch interlocking piece 21, and then the cabinet door can be closed. After the cabinet door is closed, the interlocking plate 1 is pulled downwards, and then the switch interlocking hook 3 pulls the switch interlocking piece 21 downwards. At this time, the door lock hook 5 of the interlock plate 1 is hooked on the hanging table 41 of the switch support beam 4, and the cabinet door cannot be opened directly. If the door needs to be opened, interlocking plate 1 needs to be pushed up. At this moment, if looped netowrk switch 2 is in when separating brake position, because switch self design, switch interlock piece 21 can't the rebound, then switch interlock piece 21 blocks switch interlocking couple 3 and interlocking plate 1 and moves upward, and the cabinet door can't be opened promptly. If the ring network switch 2 is in the closing state of the grounding switch, the switch interlocking part 21 can move upwards due to the design of the switch. At this time, the interlocking plate 1 is pushed up, and the door lock hook 5 is disengaged from the hanging table 41 of the switch support beam 4, so that the door of the high voltage cabinet can be opened. Because looped netowrk switch 2 has a plurality of, then when all looped netowrk switches 2 all were in ground connection sword combined floodgate state, the cabinet door could be opened.

Switch interlock piece 21 can not remove, has decided whether interlocking plate 1 can remove to indirect decision cabinet door can not be opened, thereby looped netowrk switch 2's state has decided whether the cabinet door can be opened, realizes looped netowrk switch 2 and cabinet door interlocking. The cabinet door of the high-voltage cabinet is reliably locked when the ring network switch 2 is in the opening state, so that potential safety hazards and misoperation risks are avoided.

Specifically, as shown in fig. 2, an opening groove 31 is provided on the switch interlocking hook 3, and a padlock step 311 for hooking a boss of the switch interlocking piece 21 is provided in the opening groove 31 of the switch interlocking hook 3. When the interlocking plate 1 is in a high position and the door is closed, the small-diameter end of the switch interlocking piece 21 can be smoothly clamped into the opening groove 31 of the switch interlocking hook 3 by opening the opening 42 at one side of the opening groove 31. The padlock step 311 is provided in the opening groove 31, and the large diameter end of the switch interlocking member 21 can be hung on the padlock step 311, so that the switch interlocking hook 3 can pull the switch interlocking member 21 to move downward. Switch interlock piece 21 can not remove, has decided whether interlocking plate 1 can remove to indirect decision cabinet door can not be opened, thereby looped netowrk switch 2's state has decided whether the cabinet door can be opened, realizes looped netowrk switch 2 and cabinet door interlocking. The outside of the opening groove 31 of the switch interlocking hook 3 is gradually enlarged. The notch of the opening groove 31 of the switch interlocking hook 3 is gradually enlarged, so that the switch interlocking piece 21 can be more easily clamped into the opening groove 31 when the cabinet door is closed. The padlock step 311 is directed downwards. The step of the padlock step 311 is downward, so that the padlock step 311 can pull the switch interlocking member 21 to move downward, and the interlocking is realized.

As shown in fig. 1, the specific structure of interlocking plate 1 is: the interlocking plate 1 comprises a longitudinal plate 11, a plurality of transverse plates 12 are arranged on the longitudinal plate 11, and the switch interlocking hook and the door lock hook 5 are fixed on the transverse plates 12. The transverse plate 12 extends out of the longitudinal plate 11, so that a switch interlocking hook and a door lock hook 5 are convenient to install, and the interference of the interlocking plate 1 and the looped network switch 2 or the switch supporting beam 4 is avoided.

The interlocking plate 1 is provided with a long hole 13 which is longitudinally arranged, a sliding rod 14 is fixed on a cabinet door of the high-voltage cabinet, and the sliding rod 14 is sleeved in the long hole 13. When the interlocking plate 1 moves relative to the cabinet door, the sliding rod 14 always slides in the long hole 13, so that the interlocking plate 1 can only move upwards or downwards, the limit position of the interlocking plate 1 is limited, and the switch interlocking hook 3 on the interlocking plate 1 can be smoothly clamped with the switch interlocking piece 21. All set up slot hole 13 on vertical plate 11 and the diaphragm 12, every slide bar 14 of corresponding slot hole 13's position all fixed on the cabinet door, then interlocking plate 1 is more stable when removing, avoids interlocking plate 1 dislocation and leads to the unable block's of switch interlock piece 21 and switch interlocking couple 3 the condition. The slide rod 14 is provided with a limit block 141 for preventing the slide rod 14 from coming out of the long hole 13. The limiting block 141 can block the interlocking plate 1, and the sliding rod 14 is prevented from being separated from the slot hole 13, so that the interlocking plate 1 is separated from the cabinet door.

A handle 15 is fixed to the interlocking plate 1. When interlocking plate 1 is moved up or down, handle 15 is pulled, and the operation is more convenient.

And the switch interlocking hook 3 is connected with the interlocking plate 1 through a bolt. Switch interlocking couple 3 is connected with interlocking plate 1 through the bolt, makes things convenient for switch interlocking couple 3 dismouting.

Further, as shown in fig. 6, the switch support beam 4 is provided with an opening 42 into which the switch interlock hook 3 is inserted. The opening 42 is provided at the upper end of the switch support beam 4, and the switch interlock hook 3 can smoothly pass through the opening 42 of the switch support beam 4, so that the switch interlock hook 3 can be engaged with the switch interlock member 21.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.