Transmission interlocking device of switch cabinet

Abstract

The invention discloses a transmission interlocking device of a switch cabinet. An interlocking device shell (1) is arranged on one of two cabinet doors; a door lock pin (2) and a crosspiece lock pin (14) which are mutually perpendicular are arranged inside the interlocking device shell (1); the door lock pin (2) and the crosspiece lock pin (14) extend out of the interlocking device shell (1) respectively, and are respectively inserted into lock pin holes in the other cabinet door and a crosspiece (19) in a locked state; the door lock pin (2) and the crosspiece lock pin (14) are connected through an interlocking mechanism; the interlocking mechanism locks through a locking operating handle (5) and unlocks through an unlocking button (8). Through the adoption of the technical scheme, the transmission interlocking device is convenient to mount and reliable in transmission; interchange can be fully achieved; double-workstation interlocking can be achieved; the cost is reduced; the transmission interlocking device is safe and reliable; through the button-type transmission design, the transmission interlocking device is more user-friendly and the operation is more convenient; the transmission interlocking device can be popularized and used in the field.

Description

technical field [0001] The invention belongs to the technical field of low-voltage complete switchgear. More specifically, the present invention relates to a transmission interlocking device for a switchgear. Background technique [0002] With the continuous development of economy and technology, the demand for power distribution cabinets is increasing, and the safety requirements for the use of power distribution cabinets are getting higher and higher. [0003] The door panel of the distribution cabinet is the last safety barrier for the operation of the distribution cabinet. In the actual application of the prior art, the installation of the back door is carried out in the following two ways: [0004] The first way, such as figure 1 As shown: the back door needs to restrict the lock bar 2 to the lock bar baffle plate 1 on the cabinet frame through the door lock 3 with the lock bar to meet the protection requirements. The price of the door lock 3 and the lock rod 2 is v...

AI Technical Summary

Problems solved by technology

The price of the door lock 3 and the lock rod 2 is very high; in addition, the lock rod baffle 1 is required to limit the position, and the upper lock rod baffle 1 is the source of the accident, because it protrudes downward, and the construction personnel only need to pay attention to it , you will encounter, or even have a bloody head, which is a great safety hazard;

[0005] The second way, such as figure 2 Shown: the choice made in consideration of the hidden dangers of the first method, installing a central column 1 in the middle of the rear of the power distribution cabinet, changing the big lock to at least six small door locks 3, in order to realize the security of the rear door 2 of the distribution cabinet Locking; this method increases the original material cost, and the use of the central column 1 makes the limited space in the cabinet sharply reduced, which brings great inconvenience to the processing and production of copper bars

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