一种断路器解锁装置
By designing a circuit breaker unlocking device, which uses locking components and linkage assemblies to restrict the rotation of the handle wheel and prevent the moving iron core from moving, the problem of accidental closing of the circuit breaker during maintenance is solved, improving safety and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XJ GRP CORP
- Filing Date
- 2025-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing circuit breakers can be easily opened when closed, posing a risk of electric shock, especially during appliance or wiring maintenance, which could lead to safety accidents.
A circuit breaker unlocking device is designed, including a lock, a linkage assembly, and a handle wheel. The linkage assembly restricts the rotation of the handle wheel to prevent the moving iron core from moving, thus ensuring that the circuit breaker cannot be closed.
It effectively prevents the circuit breaker from accidentally closing during maintenance, improves the safety of construction and maintenance personnel, simplifies operation and reduces the risk of errors caused by complex operations, and enhances the stability and safety of the device.
Smart Images
Figure CN224519847U_ABST
Abstract
Claims
1. A circuit breaker unlocking device characterized by comprising: The circuit breaker unlocking device includes a circuit breaker body (1), a locking element (2), a connecting rod assembly (3), and a handle wheel (4); The circuit breaker body (1) has a first mounting hole (1a) on one side. The locking member (2) is slidably connected to the first mounting hole (1a). The locking member (2) abuts against the connecting rod assembly (3). The connecting rod assembly (3) abuts against the handle wheel (4). The connecting rod assembly (3) is rotatably connected to the circuit breaker body (1). The handle wheel (4) is rotatably connected to the circuit breaker body (1). The circuit breaker body (1) is provided with a moving iron core (11). The handle wheel (4) abuts against the moving iron core (11).
2. The circuit breaker unlocking device of claim 1, wherein, The linkage assembly (3) includes a first linkage (31), a second linkage (32) and a third linkage (33). A second mounting hole (31a) is formed on the first linkage (31). The first linkage (31) is rotatably connected to the circuit breaker body (1) through the second mounting hole (31a). One end of the locking member (2) is provided with a baffle (21). The baffle (21) abuts against the first end of the first linkage (31). The second end of the first linkage (31) is connected to the first end of the second linkage (32). The second linkage (32) is connected to the third linkage (33). The first end of the third linkage (33) is rotatably connected to the circuit breaker body (1). The second end of the third linkage (33) abuts against the handle wheel (4).
3. The circuit breaker unlocking device of claim 2, wherein, The first end of the first connecting rod (31) is provided with a swing column (311), and a swing groove (1b) is formed in the circuit breaker body (1). The swing column (311) is slidably connected to the swing groove (1b).
4. The circuit breaker unlocking device of claim 2, wherein, The contact surface between the third link (33) and the handle wheel (4) is a combination of a plane and an arc surface.
5. The circuit breaker unlocking device of claim 4, wherein, A buffer is provided between the third link (33) and the handle wheel (4).
6. The circuit breaker unlocking device of claim 2, wherein, The distance from the second mounting hole (31a) to the first end of the first connecting rod (31) is less than the distance from the second mounting hole (31a) to the second end of the first connecting rod (31).
7. The circuit breaker unlocking device of claim 1, wherein, The circuit breaker body (1) also has a slot (1c) formed on one side of the first mounting hole (1a), and the locking member (2) has a spring piece (22) on the side near the slot (1c), and the spring piece (22) engages with the slot (1c).
8. The circuit breaker unlocking device of claim 7, wherein, A third mounting hole (2a) is formed on the locking member (2), and a limiting post (23) is movably connected in the third mounting hole (2a). The limiting post (23) is used to restrict the locking member (2) from resetting.
9. The circuit breaker unlocking device of claim 8, wherein, The third mounting hole (2a) is provided with two limiting posts (23), and a spring (24) is provided between the two limiting posts (23).
10. The circuit breaker unlocking device of claim 9, wherein, A countersunk hole (2b) is formed on the locking member (2), and a sensor (12) is provided inside the circuit breaker body (1). The sensor (12) is located below or above the countersunk hole (2b).