A circuit breaker drawer seat
A drawer seat, circuit breaker technology, applied in the direction of pull-out switch cabinets, electrical components, switch devices, etc., can solve problems such as difficulty in operation, and achieve the effect of simple operation
Active Publication Date: 2020-10-02
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In the existing electric drawer seat with clutch, when the operator realizes manual driving through the handle, it often needs to overcome the spring force of the clutch itself, which makes the operator need to overcome the elastic force of the spring during manual operation, giving Difficulty in operation
Method used
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Embodiment Construction
[0037] The applicant will describe in detail the specific implementation of the present invention below in conjunction with the accompanying drawings, but the applicant's description of the embodiments is not a limitation to the technical solution, and any changes made in form but not in substance according to the concept of the present invention should be regarded as the present invention. scope of protection.
[0038] The invention relates to a circuit breaker, specifically, the circuit breaker includes a circuit breaker body and a drawer base 1; the drawer base 1 is electrically connected to an external power grid, and the circuit breaker body includes a contact system, which can realize the conduction of the circuit Or disconnect, when the circuit breaker body is pushed into the drawer base 1, the circuit breaker body and the drawer base 1 are electrically connected. Therefore, the circuit breaker can switch on or off the electrical connection between the load and the grid...
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A drawer holder of a circuit breaker comprises an outer housing, a handle, a clutch mechanism, a transmission assembly and a screw rod. The clutch mechanism is used for establishing or disconnecting atransmission relationship between the transmission assembly and the screw rod. The clutch mechanism and the screw rod realize synchronous rotation and the clutch mechanism can vertically slide on thescrew rod; A return spring provides a driving force for the clutch mechanism in combination with the transmission assembly. A loc tab is laterally movable between a first position and a second position; When the locking piece is in the first position, the clutch mechanism establishes a transmission relationship with the transmission assembly; and when the locking piece is in the first position, the clutch mechanism establishes a transmission relationship with the transmission assembly. As that loc piece moves from the first position to the second position, the loc piece pushes the clutch mechanism to move vertically on the screw rod; The locking tab is in the second position, the clutch mechanism is disconnected from the transmission assembly, the handle is engaged with the clutch mechanism, and the locking tab abuts against the side of the handle in the transverse direction. As that operator doe not need to resist the clutch mechanism when rotate the handle, the operation is simplerand labor is saved.
Description
technical field [0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a circuit breaker drawer seat. Background technique [0002] Due to the convenience of inspection and maintenance, the withdrawable universal circuit breaker is widely used. The withdrawable universal circuit breaker is divided into two parts: the circuit breaker body and the drawer seat. The drawer seat is directly connected to the external power supply. Through the drive of the drawer seat, the circuit breaker body can be pushed or pulled out in the drawer seat to realize the connection between the body and the drawer seat. Connect and disconnect. As a large-capacity switching element, there are certain risks when pushing or pulling out the circuit breaker body. For example, the arc and secondary phenomena generated by circuit faults pose a greater threat to the personal safety of surrounding operators; in addition, with the continuous increase in the capa...
Claims
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IPC IPC(8): H02B11/173H02B11/127
CPCH02B11/127H02B11/173
Inventor 钱锦丰陈斌朱永清
Owner CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)