Cabinet door mechanical locking interlocking device and feeder cabinet
A technology of mechanical locking and interlocking devices, applied in switchgear, substation/power distribution device shells, pull-out switch cabinets, etc., can solve problems such as endangering operators, and achieve the effect of simple mechanical structure and good practical value
Pending Publication Date: 2019-12-10
GUANGDONG MINGYANG ELECTRIC CO LTD
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Problems solved by technology
Generally, the cabinet door of the feeder cabinet is locked by an ordinary door lock. Therefore, when the circuit breaker trolley is in the working position, the cabinet door of the feeder cabinet can still be opened. If a fault occurs in the feeder cabinet, the personal safety of the operator will be endangered. Therefore, it is necessary to Design an interlocking device to realize the mechanical locking between the circuit breaker trolley and the feeder cabinet door when the circuit breaker trolley is in the working position, and the safety performance of the feeder cabinet with the interlocking device is guaranteed to a certain extent
Method used
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[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.
[0016] An embodiment of the present invention provides a mechanical locking and interlocking device for the cabinet door, which is used to realize the locking between the circuit breaker trolley and the cabinet door 210 of the feeder cabinet. Figure 1~2 , the mechanical locking interlocking device of the cabinet door includes a locking hook 160 and a locking pin 230; the locking pin 230 is arranged inside the cabinet door 210, and the locking hook 160 is rotatably arranged in the feeder cabinet; The pin 230 fits, and the other end is located between the circui...
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The embodiment of the invention provides a cabinet door mechanical locking interlocking device, which is used for realizing the locking between a circuit breaker trolley and a feeder cabinet door. Thecabinet door mechanical locking interlocking device comprises a locking hook and a locking pin, wherein the locking pin is arranged on the inner side of the cabinet door, the locking hook is rotatably arranged in the feeder cabinet, one end of the locking hook is hook-shaped and is matched with the locking pin, and the other end of the locking hook is positioned between the circuit breaker trolley and the feeder cabinet door. The scheme realizes the mechanical locking and unlocking between the circuit breaker trolley and the feeder cabinet door through a simple mechanical structure, and has important practical significance.
Description
technical field [0001] The invention belongs to the field of electric equipment, and more specifically relates to a mechanical locking and interlocking device for cabinet doors and a feeder cabinet. Background technique [0002] The rail transit DC traction power supply system provides traction power for subway trains, which is an important guarantee for the safe and reliable operation of rail transit. The feeder cabinet is a switch device for direct protection of rail locomotives. The handcart type circuit breaker (also known as circuit breaker trolley) is generally installed in the feeder cabinet, and the handcart type circuit breaker has three fixed operating positions: working position, inspection position and test position. Generally, the cabinet door of the feeder cabinet is locked by an ordinary door lock. Therefore, when the circuit breaker trolley is in the working position, the cabinet door of the feeder cabinet can still be opened. If a fault occurs in the feeder ...
Claims
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IPC IPC(8): H02B11/133H02B1/30
CPCH02B11/133H02B1/30
Inventor 傅亮招王光琦李勇罗紫强王建军黄燕杨杰常毅杭
Owner GUANGDONG MINGYANG ELECTRIC CO LTD