CN216749766U - Breaker protective cover fastener - Google Patents

Breaker protective cover fastener Download PDF

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Publication number
CN216749766U
CN216749766U CN202220419132.8U CN202220419132U CN216749766U CN 216749766 U CN216749766 U CN 216749766U CN 202220419132 U CN202220419132 U CN 202220419132U CN 216749766 U CN216749766 U CN 216749766U
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CN
China
Prior art keywords
lock
lock box
circuit breaker
convex block
box
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Active
Application number
CN202220419132.8U
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Chinese (zh)
Inventor
王宇鹏
张永旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Tuoxin Electric Power Electronic Co ltd
Original Assignee
Liaoning Tuoxin Electric Power Electronic Co ltd
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Publication date
Application filed by Liaoning Tuoxin Electric Power Electronic Co ltd filed Critical Liaoning Tuoxin Electric Power Electronic Co ltd
Priority to CN202220419132.8U priority Critical patent/CN216749766U/en
Application granted granted Critical
Publication of CN216749766U publication Critical patent/CN216749766U/en
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Abstract

The utility model provides a circuit breaker protection casing dead lock, includes the lock box, installs the lock core of turning about in the lock box, its characterized in that: the lock comprises a lock core, a lock box and a driving rod, wherein an oval convex block is fixedly arranged on the lock core, two lock tongues which are arranged left and right and slide left and right are arranged above the oval convex block in the lock box, the lower parts of the two lock tongues are respectively provided with a socket, the left side and the right side of the oval convex block in the lock box are respectively provided with the driving rod which rotates left and right, the upper end of the driving rod is inserted into the corresponding socket, the lower end of the driving rod is attached to the outer circular surface of the oval convex block, and the positions of the top surface of the lock box, which correspond to the outer sides of the two lock tongues, are respectively provided with a lock notch. The structure is simple, the operation is convenient, and the manufacturing cost is low.

Description

Breaker protective cover fastener
Technical Field
The utility model relates to a breaker protective cover, in particular to a breaker protective cover fastener.
Background
The circuit breaker protection casing is detained its interior device to the circuit breaker protection with the circuit breaker cover, in order to prevent that the circuit breaker protection casing from being opened by non-operation personnel maliciously, need carry out the shutting to the circuit breaker protection casing. The traditional breaker protective cover fastener comprises a lock box, a lock cylinder rotationally installed in the lock box, and a lock tongue which is installed in the lock box in a vertical sliding mode and driven by the lock cylinder to enter and exit the lock box. During the use, need install the frame on the grillage at circuit breaker place, circuit breaker protection casing dead lock fixed mounting is on the frame, and the circuit breaker protection casing inserts the keyhole that detains on inserting the circuit breaker protection casing through the spring bolt behind the frame along the fore-and-aft direction and locks the circuit breaker protection casing. The circuit breaker protective cover locking mode needs to be additionally provided with a frame for relatively fixing the circuit breaker protective cover and the circuit breaker protective cover locking device, and is complex in structure, complex to operate and high in manufacturing cost.
Disclosure of Invention
The utility model aims to solve the technical problems and provides a breaker protective cover locking device which is simple in structure, convenient to operate and low in manufacturing cost.
The technical solution of the utility model is as follows:
the utility model provides a circuit breaker protection casing dead lock, includes the lock box, installs the lock core of turning about in the lock box, its characterized in that: the lock comprises a lock core, a lock box and a driving rod, wherein an oval convex block is fixedly arranged on the lock core, two lock tongues which are arranged left and right and slide left and right are arranged above the oval convex block in the lock box, the lower parts of the two lock tongues are respectively provided with a socket, the left side and the right side of the oval convex block in the lock box are respectively provided with the driving rod which rotates left and right, the upper end of the driving rod is inserted into the corresponding socket, the lower end of the driving rod is attached to the outer circular surface of the oval convex block, and the positions of the top surface of the lock box, which correspond to the outer sides of the two lock tongues, are respectively provided with a lock notch.
Furthermore, a spring is connected between the two lock tongues, so that the lock tongues can return quickly.
Furthermore, a spring pin which is vertical and penetrates out of the lock box upwards is arranged on one side in the lock box, and during unlocking, the protective cover of the circuit breaker is automatically separated from the lock box under the action of the spring pin.
Furthermore, lock box and circuit breaker protection casing bottom surface front and back rotation installation make lock box and circuit breaker protection casing be connected structure as an organic whole.
The utility model has the beneficial effects that:
during installation, the left side and the right side of the bottom surface of the breaker protective cover are respectively provided with a lock ring extending along the left-right direction, the bottom of the breaker protective cover is installed at the top of a lock box through the front-back rotation of a pin shaft, and the lock box is fixedly installed on a plate frame where the breaker is located. During the shutting operation, the circuit breaker protection casing is buckled with the circuit breaker cover to the back rotation, and the catch inserts the lock box through the fore shaft that corresponds simultaneously, and two spring bolts in the lock box move to the outside and insert the catch that corresponds, and then are fixed with circuit breaker protection casing and lock box. When the unlocking operation is carried out, the lock core is rotated, the lower parts of the two driving levers are pushed by the protruding parts of the oval-shaped protruding blocks to rotate outwards, the two lock tongues are stirred by the upper ends of the two driving levers to move relatively, the two lock tongues are separated from the corresponding lock rings, the protective cover of the circuit breaker is rotated forwards, and the protective cover of the circuit breaker is separated from the lock box. The breaker protective cover locking device is arranged between the breaker protective cover locking devices on the plate frame where the breaker is arranged, a frame is omitted, the structure is simple, the operation is convenient, and the manufacturing cost is greatly reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the rear end of the lock case of FIG. 1 with the rear end removed;
FIG. 3 is a state diagram of the use of the present invention;
in the figure: 1-lock box, 2-lock core, 3-oval bump, 4-lock tongue, 5-socket, 6-spring, 7-deflector rod, 8-lock notch, 9-spring pin, 10-breaker shield, 11-lock ring.
Detailed Description
As shown in fig. 1-2, a breaker protective cover fastener comprises a lock case 1, a lock core 2 rotating left and right is installed in the lock case 1, an oval-shaped convex block 3 is fixedly installed on the lock core 2, two lock tongues 4 which are arranged left and right and slide left and right are installed above the oval-shaped convex block 3 in the lock case 1, the lower parts of the two lock tongues 4 are respectively provided with a socket 5, a spring 6 is connected between the two lock tongues 4, shift levers 7 rotating left and right are respectively installed on the left and right sides of the oval-shaped convex block 3 in the lock case 1, the upper ends of the shift levers 7 are inserted into the corresponding sockets 5, the lower ends of the shift levers 7 are attached to the outer circular surface of the oval-shaped convex block 3, lock openings 8 are respectively arranged at the positions, corresponding to the outer sides of the two lock tongues 4, and a spring pin 9 which vertically and upwards penetrates through the lock case 1 is installed on one side in the lock case 1.
As shown in fig. 3, during the installation operation, the left and right sides of the bottom of the breaker protection cover 10 are respectively provided with a lock ring 11 extending along the left and right directions, the bottom surface of the breaker protection cover 10 is installed on the top of the lock box 1 by rotating forward and backward through a pin shaft, and the lock box 1 is fixedly installed on a plate frame where the breaker is located.
During the shutting operation, rotate circuit breaker protection casing 10 backward and detain the circuit breaker protection casing, circuit breaker protection casing 10 compression spring catch 9, two catch 12 of circuit breaker protection casing 10 bottom insert the lock box 1 through the fore shaft 8 that corresponds, under the effect of spring 6 resilience force, two spring bolts 4 move and insert corresponding catch 12 to the outside, and then lock circuit breaker protection casing 10.
During unlocking operation, the lock core 2 is rotated by a key, the lower parts of the two shift levers 7 are pushed by the protruding parts of the oval convex blocks 3 to rotate outwards, the upper ends of the two shift levers 7 shift the two lock tongues 4 to compress the springs 6 to move relatively, the two lock tongues 4 are separated from the corresponding lock rings 11, under the elastic force action of the spring pins 9, the protective cover 10 of the circuit breaker rotates forwards, and the circuit breaker is in an open state.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a circuit breaker protection casing fastener, includes the lock box, the lock core of rotation about the installation in the lock box, its characterized in that: the lock comprises a lock core, a lock box and a driving rod, wherein an oval convex block is fixedly arranged on the lock core, two lock tongues which are arranged left and right and slide left and right are arranged above the oval convex block in the lock box, the lower parts of the two lock tongues are respectively provided with a socket, the left side and the right side of the oval convex block in the lock box are respectively provided with the driving rod which rotates left and right, the upper end of the driving rod is inserted into the corresponding socket, the lower end of the driving rod is attached to the outer circular surface of the oval convex block, and the positions of the top surface of the lock box, which correspond to the outer sides of the two lock tongues, are respectively provided with a lock notch.
2. The circuit breaker shield latch of claim 1 wherein: a spring is connected between the two lock tongues.
3. The circuit breaker shield latch of claim 1 wherein: a spring pin which is vertical and penetrates out of the lock box upwards is arranged on one side in the lock box.
4. The circuit breaker shield latch of claim 1 wherein: the lock box and the bottom surface of the breaker protective cover are installed in a front-back rotating mode.
CN202220419132.8U 2022-02-28 2022-02-28 Breaker protective cover fastener Active CN216749766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220419132.8U CN216749766U (en) 2022-02-28 2022-02-28 Breaker protective cover fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220419132.8U CN216749766U (en) 2022-02-28 2022-02-28 Breaker protective cover fastener

Publications (1)

Publication Number Publication Date
CN216749766U true CN216749766U (en) 2022-06-14

Family

ID=81920462

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220419132.8U Active CN216749766U (en) 2022-02-28 2022-02-28 Breaker protective cover fastener

Country Status (1)

Country Link
CN (1) CN216749766U (en)

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