CN-224232597-U - Column circuit breaker with self-locking function

Abstract

The utility model discloses a pole-mounted circuit breaker with a self-locking function, and relates to the technical field of pole-mounted circuit breakers. The circuit breaker comprises a box body, a supporting part, locking parts and circuit breaking parts, wherein the supporting part is positioned below and used for providing support, the locking parts are arranged on the supporting part, two locking parts are arranged and are arranged in a mirror image mode, the circuit breaking parts are arranged on the top of the supporting part and are arranged in a linear array, the supporting part is used for providing support for the locking parts and the circuit breaking parts, and the locking parts are used for locking the circuit breaking parts when the circuit breaking parts break the whole circuit. By arranging the locking part, the utility model solves the problems that in the use process of the existing pole-mounted circuit breaker, when the fault is removed and the power supply is restored, automatic closing is possibly caused by misoperation of operators or other reasons, a fault circuit which is not restored is electrified again, secondary faults are caused, further damage is caused to equipment, and the safety of personnel is even endangered.

Inventors

• MOU MENGDAN
• CHEN XIAOKE
• WANG XIAODENG
• HUANG YUAN

Assignees

• 华通机电股份有限公司

Dates

Publication Date

20260512

Application Date

20250419

Claims (10)

1. 1. The utility model provides a post circuit breaker with self-locking function, includes the box, its characterized in that still includes: a support portion located below for providing support; a locking part arranged on the supporting part and provided with two locking parts which are arranged in mirror images, and The circuit breaking parts are arranged at the top of the supporting part, are arranged in a linear array; wherein the support portion is used for providing support for the locking portion and the circuit breaking portion, and when the circuit breaking portion breaks the whole circuit, the locking portion is used for locking the circuit breaking portion.
2. 2. The pole-mounted circuit breaker with the self-locking function according to claim 1, wherein the supporting part comprises two L-shaped supporting feet fixedly connected to the bottom of the box body, a cross beam is fixedly connected to the front side of the box body, and a plurality of insulating pieces are arranged on the top of the box body; The two L-shaped supporting feet are respectively positioned on the left side and the right side of the box body and are arranged in a mirror image mode, and are used for supporting the box body, and the locking part and the breaking part are arranged on the cross beam.
3. 3. The pole-mounted circuit breaker with self-locking function as in claim 2 wherein said locking portion comprises a connection assembly mounted on an inner wall of the beam, and The elastic component is arranged on the front side of the connecting component, and the front side of the elastic component is connected with the cross beam; Wherein, the rotation of coupling assembling can tensile elastic component, locks circuit breaker through elastic component.
4. 4. The pole-mounted circuit breaker with self-locking function as in claim 3 wherein said circuit breaking section comprises a first circuit breaking assembly mounted on a connection assembly, the rear side of said first circuit breaking assembly being connected to an insulator, and The second circuit breaking assembly is arranged at the top of the cross beam and positioned at the front side of the first circuit breaking assembly The first circuit breaking assembly is used for connecting the connecting assembly and the second circuit breaking assembly, and when the connecting assembly rotates, the first circuit breaking assembly moves along with the second circuit breaking assembly to form circuit breaking.
5. 5. The pole-mounted circuit breaker with the self-locking function according to claim 4, wherein the connecting assembly comprises a shaft rotatably connected to the inner wall of the cross beam, the right side of the shaft extends out of the cross beam, a switching handle is fixedly connected to the right side extending part of the shaft, and a connecting rod I is fixedly connected to the outer wall of the shaft; The split handle is used for applying external driving force on the shaft and transmitting the external driving force to the elastic component through the first connecting rod.
6. 6. The pole-mounted circuit breaker with the self-locking function according to claim 5, wherein the elastic component comprises a support rod hinged with a front side of a connecting rod, the front side of the support rod is fixedly connected with a spring, and the front side of the spring is fixedly connected with a cross beam; When the connecting component rotates, the spring can elastically deform and generate elastic force, and the elastic force acts on the breaking part under the connection of the connecting component, so that the breaking state of the breaking part is locked.
7. 7. The pole-mounted circuit breaker with the self-locking function according to claim 6, wherein the circuit breaking assembly I comprises a connecting rod II fixedly connected to the outer wall of the shaft, an insulating pull rod is hinged to the front side of the connecting rod II, a connecting block is hinged to the top of the insulating pull rod, and a connecting piece is arranged at the top of the connecting block; the insulating pull rod is made of insulating materials, so that electric conduction is avoided, and the split handle is ensured to be in an insulating state.
8. 8. The pole-mounted circuit breaker with the self-locking function according to claim 7, wherein the circuit breaking assembly II comprises an insulating support fixedly connected to the top of a cross beam, an isolating tool bit is arranged on the top of the insulating support, a contact is arranged on the top of the insulating support, and the contact is matched with the isolating tool bit; The isolating tool bit is arranged on the connecting piece and matched with the contact, and is used for controlling the circuit breaking or the passage of the whole circuit.
9. 9. The pole-mounted circuit breaker with self-locking function according to claim 8, wherein the insulating member comprises an insulating sleeve fixedly connected to the top of the case; wherein, insulating sleeve is hollow design, and its inner wall contains vacuum interrupter.
10. 10. The pole-mounted circuit breaker with the self-locking function according to claim 9, wherein the connecting piece comprises an isolating blade fixedly connected to the top of the connecting block, the front side of the isolating blade is hinged with the isolating blade, the front side of the insulating sleeve is provided with a loading type current transformer, and the front side of the loading type current transformer is hinged with the isolating blade; The isolating knife is used for connecting the connecting block, the isolating knife head and the loading type current transformer and is used for isolating the separation and combination between the knife head and the contact.

Description

Column circuit breaker with self-locking function Technical Field The utility model belongs to the technical field of column circuit breakers, and particularly relates to a column circuit breaker with a self-locking function. Background The pole-mounted circuit breaker is used as an important low-voltage electrical equipment and is widely applied to power supply and distribution systems in various places such as industry, business, civilian use and the like, and can switch on and off load current under normal conditions, automatically cut off a circuit under fault conditions, and protect safe operation of electrical equipment and circuits. However, in the use process of the existing pole-mounted circuit breaker, when the fault is removed and the power supply is restored, automatic closing can be caused by misoperation or other reasons of operators, so that a fault circuit which is not restored is electrified again, secondary faults are caused, further damage is caused to equipment, and even personnel safety is endangered. Disclosure of utility model The utility model aims to provide a pole-mounted circuit breaker with a self-locking function, and solves the problems that in the use process of the existing pole-mounted circuit breaker, when a fault is removed and a power supply is restored, automatic closing is possibly caused by misoperation of an operator or other reasons, a fault circuit which is not restored is electrified again, secondary faults are caused, further damage is caused to equipment, and even safety of personnel is endangered. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to a pole-mounted circuit breaker with a self-locking function, which comprises a box body, a supporting part, locking parts and a circuit breaking part, wherein the supporting part is positioned below and used for providing support, the locking parts are arranged on the supporting part, two locking parts are arranged and are arranged in a mirror image mode, the circuit breaking parts are arranged at the top of the supporting part and are arranged in a linear array, the supporting part is used for providing support for the locking parts and the circuit breaking parts, and the locking parts are used for locking the circuit breaking parts when the circuit breaking parts break the whole circuit. Further, the supporting part comprises two L-shaped supporting feet fixedly connected to the bottom of the box body, the front side of the box body is fixedly connected with a cross beam, the top of the box body is provided with a plurality of insulating pieces, the two L-shaped supporting feet are respectively positioned on the left side and the right side of the box body and are arranged in a mirror image mode, and are used for supporting the box body, and the locking part and the breaking part are arranged on the cross beam. Further, the locking part comprises a connecting component and an elastic component, wherein the connecting component is installed on the inner wall of the cross beam, the elastic component is installed on the front side of the connecting component, the front side of the elastic component is connected with the cross beam, and the rotation of the connecting component stretches the elastic component to lock the circuit breaking part through the elastic component. The circuit breaking part comprises a first circuit breaking component and a second circuit breaking component, wherein the first circuit breaking component is arranged on the connecting component, the rear side of the first circuit breaking component is connected with the insulating piece, the second circuit breaking component is arranged on the top of the cross beam and is positioned on the front side of the first circuit breaking component, the first circuit breaking component is used for connecting the connecting component and the second circuit breaking component, and when the connecting component rotates, the first circuit breaking component moves along with the connecting component, and a circuit breaking is formed through the second circuit breaking component. Further, the connecting assembly comprises a shaft which is rotatably connected to the inner wall of the cross beam, the right side of the shaft extends out of the cross beam, a split handle is fixedly connected to the extending part on the right side of the shaft, a connecting rod I is fixedly connected to the outer wall of the shaft, and the split handle is used for acting external driving force on the shaft and transmitting the external driving force to the elastic assembly through the connecting rod I. The elastic assembly comprises a supporting rod hinged with the front side of the connecting rod, the front side of the supporting rod is fixedly connected with a spring, the front side of the spring is fixedly connected with the cross beam, and when the connecting assembly rotates, the spring can elasti