CN211038196U

CN211038196U - Locking device of low-voltage switch cabinet

Info

Publication number: CN211038196U
Application number: CN201920738315.4U
Authority: CN
Inventors: 刘雅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-07-17
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a locking device of low-voltage switchgear, including the internal closer of stop pin and cabinet on the cabinet door, the stop pin includes the bulb of the long and thin body of rod and body of rod tip, and the diameter of bulb is greater than the diameter of the body of rod, body of rod middle part is equipped with vertical locked groove, the closer includes casing and casing upper portion's cam lock, the casing is box body structure, and the left side is equipped with the horizontally cradling piece for the opening of orientation stop pin, is equipped with the horizontally in the middle part of the casing right side inner wall, and the cradling piece left end is equipped with last locking lamella and the lower locking lamella that can fold the locking bulb, goes up for hinged joint between locking lamella and the lower locking lamella, goes up the locking lamella and is equipped with barb portion, is equipped with the elasticity hoop that is used for reseing in barb portion, but cam lock bottom portion is equipped with horizontal pivoted rotation tongue, be equipped with the locking lever that is. The utility model discloses be difficult to wearing and tearing lead to interim locking inefficacy, the mode of firm locking is firm, and the tool to lock is difficult to the quilt and is broken.

Description

Locking device of low-voltage switch cabinet

Technical Field

The utility model relates to a locking device especially relates to a locking device of low-voltage switchgear.

Background

The low-voltage switch cabinet is very important for power supply safety, so that under a normal use state, firm locking is required, and misoperation of irrelevant personnel is avoided. The low-voltage switch cabinet in the prior art mostly adopts a common mechanical lock or a bolt device to lock, the switch cabinet needs to be opened and closed for many times when the low-voltage switch cabinet is overhauled, only temporary locking is needed at this time, and the traditional locking device needs to perform frequent locking and unlocking operations, which is very troublesome. Therefore, a locking device having a temporary locking function while ensuring locking safety is required. The patent number CN201410248351.4 discloses a locking device of a low-voltage switch cabinet, which comprises a locking pin arranged on a cabinet door of the low-voltage switch cabinet and a closer arranged on a cabinet body of the low-voltage switch cabinet, wherein the locking pin comprises a slender base body and a protruding head arranged at the end part of the base body, the protruding head has a width wider than that of the base body, and a hollowed-out locking hole is arranged in the middle of the front end of the protruding head; the closer comprises a locking pin insertion hole arranged on a top plate of the cabinet body and a closer shell arranged at the rear part of the locking pin insertion hole, and a first locking device and a second locking device are arranged in the closer shell; the first locking device locks the protruding head clamp owner through the acute angle protrusion on the spring clamping piece, the second locking device stretches into the protruding overhead lockhole through the crotch on the set bar and locks, the device can carry out secondary locking to the low-voltage switch cabinet, keep the safe locking of low-voltage switch cabinet in the operation, carry out interim locking to the low-voltage switch cabinet when overhauing, but the easy wearing and tearing of acute angle protrusion on the device spring clamping piece lead to interim locking to become invalid, and the mode that the crotch stretched into the overhead lockhole of protrusion and locks is not firm, the crotch is easily broken.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a locking device of low-voltage switchgear, be difficult to wearing and tearing lead to interim locking inefficacy, the mode of firm locking is firm, and the tool to lock is difficult to the quilt bad.

The utility model provides a technical scheme that its technical problem adopted: a locking device of a low-voltage switch cabinet comprises a locking pin on a door of the low-voltage switch cabinet and a closer in the low-voltage switch cabinet, wherein the locking pin comprises a slender rod body and a ball head at the end part of the rod body, the diameter of the ball head is larger than that of the rod body, a vertical locking groove is formed in the middle of the rod body, the closer comprises a shell and a rotating tongue lock on the upper part of the shell, the shell is of a box structure, the left side of the shell is an opening facing the locking pin, a horizontal support rod is arranged in the middle of the right inner wall of the shell, the left end of the support rod is provided with an upper locking petal and a lower locking petal which can be folded to lock the ball head, the upper locking petal and the lower locking petal are connected through a hinge, the left parts of the upper locking petal and the lower locking petal are provided with an inverted hook part, an elastic hoop ring for resetting is arranged on the inverted hook part, the bottom of the rotating tongue, the lock rod is perpendicular to the rotating tongue, the left parts of the upper inner wall and the lower inner wall of the shell are respectively provided with an auxiliary support power-assisted clamping seat, the two power-assisted clamping seats can be respectively clamped with the upper end and the lower end of the lock rod, and the two power-assisted clamping seats are respectively positioned right above and below the lock groove.

Further perfection, the right part of the upper inner wall and the lower inner wall of the shell is respectively provided with a positioning clamping seat, and the two positioning clamping seats can be respectively clamped with the upper end and the lower end of the lock rod.

Further perfection, be equipped with the screw on the bulb, the screw passes through the threaded connection body of rod.

Further perfection, be equipped with the magnet that can adsorb lock lamella and lower lock lamella in the screw, be equipped with the gasket between magnet and the body of rod.

Further perfection, a circle of abrasion-reducing balls are arranged on the inner side surface of the barb part.

The utility model discloses profitable effect is: 1. the utility model has two stations of temporary locking and firm locking, can perform secondary locking to the low-voltage switch cabinet, ensures the safety of the locking device by twice locking, and needs to open and close the switch cabinet for many times when convenient to overhaul; 2. the utility model uses the elastic hoop, the upper locking petal and the lower locking petal to lock temporarily, the upper locking petal and the lower locking petal can fold to lock the ball head, and has the advantages of good wear resistance and large clamping force; 3. the locking rod is firmly locked by rotating the locking rod through the rotating tongue to buckle the locking groove in the middle of the rod body, so that the locking is firm and the locking rod is not easy to be damaged by pulling; 4. the left parts of the upper and lower inner walls of the shell are respectively provided with an auxiliary support power-assisted clamping seat which can support the lock rod and protect the cam lock from being pulled loose or even damaged; 5. the magnet capable of adsorbing the upper locking clack and the lower locking clack is arranged in the ball head, so that the temporary locking is further ensured not to lose efficacy.

Drawings

Fig. 1 is a structural schematic diagram of the open state of the present invention;

fig. 2 is a schematic structural view of the present invention in a locked state;

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 in the direction B;

description of reference numerals: 1. the cabinet door comprises a cabinet door body, 2, a rod body, 3, a lock groove, 4, a ball head, 5, a cabinet body, 6, a power-assisted clamping seat, 7, a rotating tongue lock, 8, a rotating tongue, 9, a lock rod, 10, a support rod, 11, a shell, 12, a positioning clamping seat, 13, an upper lock flap, 14, a lower lock flap, 15, an elastic hoop, 16, a barb part, 17, a ball, 18, a screw hole, 19, a magnet, 20 and a gasket.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

with reference to the accompanying drawings: the locking device of the low-voltage switch cabinet comprises a locking pin on a door 1 of the low-voltage switch cabinet and a closer in a cabinet body 5 of the low-voltage switch cabinet, wherein the locking pin comprises a slender rod body 2 and a ball head 4 at the end part of the rod body 2, the diameter of the ball head 4 is larger than that of the rod body 2, a vertical locking groove 3 is arranged in the middle of the rod body 2, the closer comprises a shell 11 and a rotating tongue lock 7 on the upper part of the shell 11, the shell 11 is of a box body structure, the left side of the shell is an opening facing the locking pin, a horizontal support rod 10 is arranged in the middle of the right inner wall of the shell 11, an upper locking flap 13 and a lower locking flap 14 which can be folded to lock the ball head 4 are arranged at the left end of the support rod 10, the upper locking flap 13 and the lower locking flap 14 are connected through a hinge, a reverse hook part 16 is arranged at the left parts of the upper locking flap 13 and the lower locking flap 14, the rotary bolt 8 is positioned in the shell 11, the rotary bolt 8 is provided with a lock rod 9 for buckling the lock groove 3, the lock rod 9 is perpendicular to the rotary bolt 8, the left parts of the upper and lower inner walls of the shell 11 are respectively provided with an assistant support assistant clamping seat 6, the assistant clamping seats 6 can be respectively clamped at the upper and lower ends of the lock rod 9, and the assistant clamping seats 6 are respectively positioned right above and below the lock groove 3.

The right parts of the upper and lower inner walls of the shell 11 are respectively provided with a positioning clamping seat 12, and the two positioning clamping seats 12 can be respectively clamped with the upper and lower ends of the lock rod 9.

The bulb 4 is provided with a screw hole 18, and the screw hole 18 is connected with the rod body 2 through threads.

The screw hole 18 is internally provided with a magnet 19 which can absorb the upper locking petal 13 and the lower locking petal 14, and a gasket 20 is arranged between the magnet 19 and the rod body.

The inside surface of the barb 16 is provided with a ring of wear reducing balls 17.

The working principle is as follows: the locking device can perform secondary locking on the low-voltage switch cabinet, when the low-voltage switch cabinet needs to be temporarily closed or locked, the locking pin is inserted into the closer, the ball head 4 of the locking pin is pushed into the upper locking petal 13 and the lower locking petal 14, and the upper locking petal 13 and the lower locking petal 14 are folded under the action of the elastic hoop 15 to clamp the ball head 4, so that the low-voltage switch cabinet is temporarily locked; when the firm locking is needed, a key is inserted into the rotating tongue lock 7, the rotating tongue 8 is controlled to rotate by rotating the key, the lock rod 9 is driven to be separated from the positioning clamping seats 12 in the rotating process of the rotating tongue 8, the lock groove 3 in the middle of the rod body 2 is buckled, and meanwhile, the upper end and the lower end of the lock rod 9 are clamped into the two power-assisted clamping seats 6 on the left parts of the upper inner wall and the lower inner wall of the shell 11 respectively, so that the locking pin is locked secondarily, and the whole switch cabinet is in a safe locking state.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a locking device of low-voltage switchgear, includes the closer in stop pin and the low-voltage switchgear cabinet body (5) on low-voltage switchgear cabinet door (1), characterized by: the locking pin comprises a slender rod body (2) and a ball head (4) at the end part of the rod body (2), the diameter of the ball head (4) is larger than that of the rod body (2), a vertical locking groove (3) is arranged in the middle of the rod body (2), the closer comprises a shell (11) and a latch lock (7) on the upper part of the shell (11), the shell (11) is of a box structure, the left side of the shell is an opening facing the locking pin, a horizontal support rod (10) is arranged in the middle of the right inner wall of the shell (11), an upper lock flap (13) and a lower lock flap (14) which can fold the locking ball head (4) are arranged at the left end of the support rod (10), the upper lock flap (13) and the lower lock flap (14) are connected through a hinge, a barb part (16) is arranged at the left parts of the upper lock flap (13) and the lower lock flap (14), an elastic hoop (15) for resetting is arranged on the barb part (16), a horizontally rotatable latch (8, the rotary bolt (8) is positioned inside the shell (11), a lock rod (9) used for buckling the lock groove (3) is arranged on the rotary bolt (8), the lock rod (9) is perpendicular to the rotary bolt (8), the left part of the upper inner wall and the lower inner wall of the shell (11) is respectively provided with an auxiliary support power-assisted clamping seat (6), the two power-assisted clamping seats (6) can be respectively clamped with the upper end and the lower end of the lock rod (9), and the two power-assisted clamping seats (6) are respectively positioned right above and below the lock groove (3).

2. A locking device of a low-voltage switchgear cabinet, according to claim 1, characterized in that: the right parts of the upper inner wall and the lower inner wall of the shell (11) are respectively provided with a positioning clamping seat (12), and the two positioning clamping seats (12) can be respectively clamped with the upper end and the lower end of the lock rod (9).

3. A locking device of a low-voltage switchgear cabinet, according to claim 1, characterized in that: the ball head (4) is provided with a screw hole (18), and the screw hole (18) is connected with the rod body (2) through threads.

4. A locking device of a low-voltage switchgear cabinet, according to claim 3, characterized in that: a magnet (19) capable of adsorbing the upper locking flap (13) and the lower locking flap (14) is arranged in the screw hole (18), and a gasket (20) is arranged between the magnet (19) and the rod body.

5. A locking device of a low-voltage switchgear cabinet, according to claim 1, characterized in that: and a circle of abrasion-reducing balls (17) are arranged on the inner side surface of the barb part (16).