Switching-on and switching-off mechanism of drawer cabinet circuit breaker

Abstract

The present invention belongs to the switch cabinet technical field and discloses a switching-on and switching-off mechanism of a drawer cabinet circuit breaker. The switching-on and switching-off mechanism comprises a drawer and a circuit breaker which is fixed on a drawer bottom plate, the front surface of the circuit breaker facing upwards; the circuit breaker is provided with a switch operation support and a sliding plate connected with the switch operation support; the switching-on and switching-off mechanism further comprises a crank connecting rod mechanism, a support and a handle; the connecting rod of the crank connecting rod mechanism is hinged to the sliding plate; the crankshaft of the crank of the crank connecting rod mechanism is fixed on the support; the support is fixed on the drawer bottom plate; and one end of the handle is connected with the crank, and the other end of the handle extends to the exterior of the drawer and can be shifted up and down. According to the switching-on and switching-off mechanism provided by the invention, the circuit breaker which is installed horizontally with the front surface facing upwards is adopted, a handle rotation operation mode is converted into a handle linear operation mode, and therefore, operation is convenient and labor-saving, and switching-on and switching-off states are intuitive; the universality of the mechanism is high; the circuit breaker is convenient to install; and debugging and maintenance can be facilitated.

Description

technical field [0001] The invention relates to the technical field of switch cabinets, in particular to an opening and closing mechanism of a drawer cabinet circuit breaker. Background technique [0002] At present, there are many types of opening and closing operating mechanisms for circuit breakers in various types of drawer-type switch cabinets produced and selected by electrical complete sets of equipment, and their performances are different. This type of operating mechanism uses the external handle rotation operation to realize the opening and closing of circuit breakers. The advantage of this method is that the operation range is small and the operation space is saved, but at the same time there are some defects and hidden dangers, such as laborious operation, slow opening and closing speed, easy damage to the handle, and easy misjudgment if the opening and closing state is not obvious. It is inconvenient to install and disassemble the circuit breaker, and it is inco...

AI Technical Summary

Problems solved by technology

[0006] In the existing operating mechanism, the external operating torque is converted and transmitted by the square shaft, and the rotation of the square shaft is a laborious lever transmission. It is laborious for the mechanism to separate and close a circuit breaker with a large frame level, and thus easily cause damage to the external handle.

[0007] The opening and closing of the existing operating mechanism is completed by the rotation of the external handle of the drawer. The result is that the opening and closing state is reflected by the rotation position of the handle. This reflection is not intuitive. If the handle is installed incorrectly, it is easy to cause the opening and closing judgment mistake

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