POSITION INDICATING DEVICE OF CIRCUIT BREAKER DRAWER SEAT

• Main Authors: YANG, YINGJIE, LUO, JINGXIANG, WANG, KEMING
• Format: Patent
• Language: English
• Published: 27.05.2021

A position indicating device of a circuit breaker drawer seat comprises a body switch (3) of a circuit breaker and a handle screw rod assembly and further comprises a position indicating assembly (1) and an indicating drive piece (4), wherein the body switch (3) of the circuit breaker is detachably installed on a guide rail (22) of the drawer seat (2), the handle screw rod assembly drives the body switch (3) to linearly move along the guide rail (22) to the three positions where the body switch (3) and the drawer seat (2) are separated, tested and connected, the indicating drive piece (4) is fixed to a small side plate (31) of the body switch (3), the position indicating assembly (1) comprises three contact switches (12, 13, 14), three pairs of forward gear and backward gear protruding columns (12a & 12b, 13a & 13b, 14a & 14b), a separation lever (15), a test lever (16) and a connection lever (17), wherein the three contact switches (12, 13, 14) are fixed to a fixing plate (11) of a big side plate (21) of the drawer seat (2), and the separation lever (15), the test lever (16) and the connection lever (17) are pivoted to the fixing plate (11) through rotating pair structures. An execution shaft pin (41) on the indicating drive piece (4) is in knocking fit with the corresponding levers of the position indicating assembly (1) when the body switch (3) is moved to the three working positions, so that the separation lever (15) can be driven to be in contact fit with the separation contact switch (12), the test lever (16) can be driven to be in contact fit with the test contact switch (13), and the connection lever (17) can be driven to be in contact fit with the connection contact switch (14).