CN212434534U

CN212434534U - Interlocking device for preventing mistaken closing of grounding switch during electrification

Info

Publication number: CN212434534U
Application number: CN202021318677.7U
Authority: CN
Inventors: 孙利; 李强; 马有亮
Original assignee: Zhenjiang Changzheng Power Equipment Co ltd
Current assignee: Zhenjiang Changzheng Power Equipment Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-01-29
Anticipated expiration: 2030-07-08

Abstract

The utility model relates to the technical field of switch cabinets, and discloses an interlocking device for preventing from mistakenly closing a grounding switch when electrified, which solves the problems of complex structure and potential safety hazard existing in the interlocking device for preventing from mistakenly closing the grounding switch when electrified on the current market, and comprises an interlocking frame, wherein the top and the bottom of the inner cavity of the interlocking frame are fixedly connected with a sliding device, the upper part of one side of the inner cavity of the interlocking frame is penetrated with a clamping frame, the bottom of the clamping frame is fixedly connected with a first straight toothed plate, one side of the inner cavity of the interlocking frame is penetrated with a connecting rod, one end of the connecting rod is penetrated and extended into the interlocking frame, one end of the connecting rod positioned in the interlocking frame is fixedly connected with a pulling block, one side of the pulling block is fixedly connected with a fixed plate, the top of the fixed plate is fixedly connected with a second straight toothed plate, the interlocking device for preventing from mistakenly closing the grounding switch when electrified, not only the reliable operation has also improved the safety in utilization of high and medium voltage switchgear.

Description

Interlocking device for preventing mistaken closing of grounding switch during electrification

Technical Field

The utility model belongs to the technical field of the cubical switchboard, specifically be a prevent to close earthing switch's interlock by mistake when electrified.

Background

The high-low voltage switch cabinet is a device for connecting high-voltage or low-voltage cables as the name implies, a high-voltage cabinet is used by a common power supply station and a substation, the high-voltage cabinet is subjected to voltage reduction by a transformer and then enters a low-voltage cabinet, the low-voltage cabinet enters each power distribution box, and protective devices such as switch breakers and the like are assembled into an integrated electrical device without the inside.

The existing interlocking device for preventing the earthing switch from being closed by mistake in the live process is complex in structure, and an operator can still insert an earthing switch operating handle onto an earthing switch operating shaft to carry out forced operation in the live operation process of the switch equipment, so that serious potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a prevent to miss when electrified and close earthing switch's interlock, the effectual current interlock that prevents to miss when electrified among the above-mentioned background art structure complicacy and the problem that has the potential safety hazard of use of solving.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent to close earthing switch's interlock by mistake when electrified, includes the interlock frame, the top and the equal fixedly connected with slider in bottom of interlock frame inner chamber, the upper portion of interlock frame inner chamber one side is run through and is had the card frame, the first straight-tooth plate of bottom fixedly connected with of card frame, the connecting rod has been run through to interlock frame inner chamber one side, the one end of connecting rod runs through and extends to the inside of interlock frame, the connecting rod is located the inside one end fixedly connected with of interlock frame and draws the piece, one side fixedly connected with fixed plate of drawing the piece, the top fixedly connected with second straight-tooth plate of fixed plate.

Preferably, the inside of interlocking frame rotates and is connected with the dwang, the one end fixedly connected with rotary disk of dwang, and the surface mounting of rotary disk has a slewing gear, and the surface of slewing gear meshes with first straight toothed plate and second straight toothed plate respectively.

Preferably, the two sliding devices comprise two sliding frames, two sliding rods, two sliding blocks and two connecting blocks, the two sliding frames are fixedly connected with the top and the bottom of the inner cavity of the interlocking frame respectively, and the two connecting blocks are fixedly connected with the top of the clamping frame and the bottom of the fixing plate respectively.

Preferably, two equal fixedly connected with slide bar between the both sides of slide frame inner chamber, the equal sliding connection in surface of two slide bars has the slider, the equal fixedly connected with connecting block of one end of two sliders.

Preferably, the connecting rod is located the outside one end fixedly connected with rotating turret of interlocking frame, and the surface cover that the connecting rod is located the interlocking frame inside is equipped with expanding spring, expanding spring's one end and the one side fixed connection who draws the piece.

Preferably, the surface of the interlocking frame is fixedly connected with a mounting sleeve, and rotating screws are mounted at the top and the bottom of the mounting sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) in the working process, the interlocking frame, the clamping frame, the first straight toothed plate, the connecting rod, the pull block, the fixed plate, the second straight toothed plate, the rotary disk, the rotary gear, the rotary frame and the telescopic spring are arranged, so that the rotary frame drives the connecting rod and the pull block to move, the fixed plate and the second straight toothed plate can be driven to move along with the movement of the pull block, the rotary disk and the rotary gear on the surface can be driven to rotate by utilizing the teeth on the surface of the second straight toothed plate in the moving process, and the first straight toothed plate and the clamping frame are driven to move by utilizing the rotary gear;

(2) the sliding block slides on the surface of the sliding rod, the sliding block drives the clamping frame and the fixing plate to move in the sliding process, the grounding switch of the high-voltage switch cabinet is stably in a closing grounding state, and accordingly safety of workers is guaranteed to the greatest extent.

Drawings

The accompanying drawings 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 invention and not to limit the invention.

In the drawings:

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

fig. 2 is a schematic structural view of the sliding device of the present invention;

fig. 3 is a schematic structural view of the outside of the interlocking frame of the present invention;

in the figure: 1. an interlocking frame; 2. a sliding device; 201. a sliding frame; 202. a slide bar; 203. a slider; 204. connecting blocks; 3. a clamping frame; 4. a first straight toothed plate; 5. a connecting rod; 6. pulling the block; 7. a fixing plate; 8. a second spur plate; 9. rotating the rod; 10. rotating the disc; 11. rotating the screw; 12. a rotating gear; 13. a rotating frame; 14. a tension spring; 15. and (7) installing a sleeve.

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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment one, given by fig. 1, the utility model discloses, including interlocking frame 1, interlocking frame 1 can prevent that the mistake from closing, the top and the equal fixedly connected with slider 2 in bottom of interlocking frame 1 inner chamber, the card frame 3 has been run through on the upper portion of interlocking frame 1 inner chamber one side, the first straight-tooth plate 4 of bottom fixedly connected with of card frame 3, utilize first straight-tooth plate 4 to be convenient for drive card frame 3 and carry out the side-to-side motion, connecting rod 5 has been run through to interlocking frame 1 inner chamber one side, the one end of connecting rod 5 runs through and extends to interlocking frame 1's inside, connecting rod 5 is located interlocking frame 1 inside one end fixedly connected with pull block 6, one side fixedly connected with fixed plate 7 of pull block 6, the top fixedly connected with second straight-tooth plate 8 of fixed plate 7, utilize second straight-tooth plate 8 to be convenient for drive fixed plate 7 to carry out the side-to.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 1, the interlocking frame 1 is rotatably connected with a rotating rod 9, one end of the rotating rod 9 is fixedly connected with a rotating disk 10, a rotating gear 12 is mounted on the surface of the rotating disk 10, the rotating gear 12 and the surface of the rotating gear 12 are respectively meshed with the first spur gear plate 4 and the second spur gear plate 8, and the rotating disk 10 is rotated to conveniently drive the first spur gear plate 4 and the second spur gear plate 8 to rotate.

In the third embodiment, based on the first embodiment, as shown in fig. 1 and 2, the two sliding devices 2 include two sliding frames 201, two sliding rods 202, two sliding blocks 203, and two connecting blocks 204, the two sliding frames 201 are respectively and fixedly connected with the top and the bottom of the inner cavity of the interlocking frame 1, the two connecting blocks 204 are respectively and fixedly connected with the top of the clamping frame 3 and the bottom of the fixing plate 7, and the two sliding devices 2 are convenient to move.

Fourth embodiment, on the basis of third embodiment, as shown in fig. 2, sliding rods 202 are fixedly connected between two sides of the inner cavities of the two sliding frames 201, sliding blocks 203 are slidably connected to the surfaces of the two sliding rods 202, a connecting block 204 is fixedly connected to one ends of the two sliding blocks 203, and the sliding blocks 203 drive the connecting block 204 to move.

Fifth embodiment, on the basis of the first embodiment, as shown in fig. 1, one end of the connecting rod 5 located outside the interlocking frame 1 is fixedly connected with a rotating frame 13, a telescopic spring 14 is sleeved on the surface of the connecting rod 5 located inside the interlocking frame 1, one end of the telescopic spring 14 is fixedly connected with one side of the pull block 6, and the connecting rod 5 and the telescopic spring 14 are used for driving the pull block 6 to perform stretching movement.

Sixth embodiment, on the basis of the first embodiment, as shown in fig. 3, a mounting sleeve 15 is fixedly connected to the surface of the interlocking frame 1, the top and the bottom of the mounting sleeve 15 are both provided with rotating screws 11, and the entire interlocking frame 1 is conveniently mounted by using the rotating screws 11.

The working principle is as follows: the during operation, utilize installation cover 15 and rotation screw 11 to install whole interlock frame 1, interlock frame 1 prevents mistake and closes when using, utilize rotating turret 13 to drive connecting rod 5 and carry out tensile motion, will drive fixed plate 7 and second spur gear 8 along with the motion of connecting rod 5 and move, second spur gear 8 utilizes surperficial tooth will drive rotary disk 10 and surperficial bull gear 12 to rotate at the in-process of motion, it drives first spur gear 4 and card frame 3 and moves to recycle bull gear 12, and finally, the interlocking of mistake closure ground switch when realizing electrified through the concertina movement of card frame 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An interlock device for preventing a grounding switch from being mistakenly closed when electrified comprises an interlock frame (1), and is characterized in that: the top and the equal fixedly connected with slider (2) in bottom of interlocking frame (1) inner chamber, the upper portion of interlocking frame (1) inner chamber one side is run through and is had card frame (3), the first straight-teeth board of bottom fixedly connected with (4) of card frame (3), interlocking frame (1) inner chamber one side is run through and is had connecting rod (5), the one end of connecting rod (5) is run through and extends to the inside of interlocking frame (1), connecting rod (5) are located the inside one end fixedly connected with pull block (6) of interlocking frame (1), one side fixedly connected with fixed plate (7) of pull block (6), the top fixedly connected with second straight-teeth board (8) of fixed plate (7).

2. An interlock device for preventing false closing of a grounding switch when energized according to claim 1, wherein: the inside of interlocking frame (1) rotates and is connected with dwang (9), the one end fixedly connected with rotary disk (10) of dwang (9), and the surface mounting of rotary disk (10) has a driving gear (12), and the surface of driving gear (12) meshes with first straight toothed plate (4) and second straight toothed plate (8) mutually respectively.

3. An interlock device for preventing false closing of a grounding switch when energized according to claim 1, wherein: the two sliding devices (2) comprise two sliding frames (201), two sliding rods (202), two sliding blocks (203) and two connecting blocks (204), the two sliding frames (201) are fixedly connected with the top and the bottom of an inner cavity of the interlocking frame (1) respectively, and the two connecting blocks (204) are fixedly connected with the top of the clamping frame (3) and the bottom of the fixing plate (7) respectively.

4. An interlock device for preventing false closing of a grounding switch when energized according to claim 3, wherein: two equal fixedly connected with slide bar (202) between the both sides of slide frame (201) inner chamber, the equal sliding connection in surface of two slide bar (202) has slider (203), the equal fixedly connected with connecting block (204) of one end of two sliders (203).

5. An interlock device for preventing false closing of a grounding switch when energized according to claim 1, wherein: connecting rod (5) are located interlocking frame (1) outside one end fixedly connected with rotating turret (13), and connecting rod (5) are located the inside surface cover of interlocking frame (1) and are equipped with expanding spring (14), the one end of expanding spring (14) and the one side fixed connection who draws piece (6).

6. An interlock device for preventing false closing of a grounding switch when energized according to claim 1, wherein: the surface of the interlocking frame (1) is fixedly connected with an installation sleeve (15), and the top and the bottom of the installation sleeve (15) are both provided with rotating screws (11).