A drawer type circuit breaker isolation position interlocking device
A drawer-type circuit breaker and interlocking device technology, which is applied to circuit devices, switch devices, and pull-out switch cabinets, etc., can solve the problem that circuit breakers cannot be interlocked, and achieve the effect of preventing misoperation and protecting the system.
Active Publication Date: 2017-07-18
XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD
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Problems solved by technology
However, in the literature, the circuit breaker locks the working positions of "connection", "test" and "disconnection", and some circuit breakers on the market can also be locked at any position, but none of the existing circuit breakers can achieve this. Interlock function
Method used
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[0021] The present invention will be further described below in conjunction with accompanying drawing:
[0022] refer to figure 1 , the circuit breaker body 1 is installed in the drawer seat 2, and the handle or other operating parts are used to rotate the screw 3 ( image 3 Middle) Adjust the circuit breaker body 1 forward and backward, put the circuit breaker in three working positions, and the circuit breaker has three corresponding working states: connection, test, and separation (the test and separation positions can also be called isolation positions) , the above-mentioned screw 3 is linked with the position indicator 4 on one side, and the end of the position indicator 4 indicates the corresponding three working positions: when it is in the separated state, the circuit breaker body can be removed from the drawer seat, and the circuit breaker can be adjusted Carry out maintenance or replacement; when it is in the test state, the secondary circuit of the circuit breaker ...
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The invention discloses an isolation position interlocking device for a drawer type circuit breaker, which includes a position indicating piece arranged on a drawer seat, at least one locking piece and an actuator, and each locking piece is linked and interacts with the position indicating piece through the actuator , the circumferential side wall of the position indicator is provided with at least one relief groove, and the actuator is provided with a protrusion. When the circuit breaker is in the separation or test position, the corresponding relief groove of the position indicator is facing the actuator. The protrusion and each locking piece are linked to drive the actuating piece closer to the position indicator so that the protrusion is inserted into the relief slot to realize interlocking. The present invention realizes the interlocking function of multiple switch circuit breakers through the cooperation of more than one lock piece and the position indicating piece, and is especially suitable for workplaces requiring uninterrupted power supply. The key turns on another power circuit, which really protects the system and prevents misoperation.
Description
technical field [0001] The invention discloses a drawer-type circuit breaker isolation position interlocking device, which belongs to the technical field of circuit breaker manufacturing according to the International Patent Classification (IPC). Background technique [0002] Drawer type circuit breaker is a kind of circuit breaker commonly used in power distribution appliances. Its structure is that the circuit breaker body is installed in the drawer seat. The drawer seat includes a sliding system for carrying and installing the circuit breaker body. The sliding system passes through the operating part or Driven by the handle, adjust the circuit breaker body to advance or retreat, and put the circuit breaker in different working positions, namely the innermost "connection" position, the middle "test" position and the outermost "separation" position: connection position, circuit breaker The main circuit and secondary circuit of the circuit breaker body and the drawer base ar...
Claims
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IPC IPC(8): H02B11/133H02B11/10H02J9/04
Inventor 殷国庭尤安顺李家路
Owner XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD