A static contact anti-mistouch locking device of a handcart switch cabinet

Abstract

The invention relates to the field of a switch cabinet, and particularly relates to a handcart switch cabinet fixed contact anti-misoperation locking device. The handcart switch cabinet fixed contactanti-misoperation locking device comprises a driving device; the driving device comprises a longitudinal linkage rod, an electrical push rod and a transverse linkage rod; connection pillars are arranged at one end of the transverse linkage rod; a plurality of chutes corresponding to the connection pillars one to one are formed on the longitudinal linkage rod; the connection pillars are arranged inthe corresponding chutes in a sliding mode; a plurality of locking mechanisms are arranged on the transverse linkage rod; each locking mechanism comprises a base, a main rotary table rotationally arranged on the base and a transmission rotary table; the transmission rotary tables are hinged onto the transverse linkage rod; the transmission rotary tables are meshed with the main rotary tables by transmission teeth; a fixed contact hole and a hole cover covered on the fixed contact hole are arranged in the middle of each base; each hole cover consists of a plurality of movable plates hinged onthe corresponding base; stays for pulling the movable plates are arranged on the movable plates; and both ends of the stays are respectively hinged on the movable plates and the main rotary tables. The handcart switch cabinet fixed contact anti-misoperation locking device is compact in structure and convenient to operate and can effectively prevent a handcart from being jammed when the handcart moves forwards and back in the switch cabinet.

Description

technical field [0001] The invention relates to the field of switch cabinets, in particular to an anti-mistouch locking device for static contacts of a handcart switch cabinet. Background technique [0002] In the handcart switch cabinet, the handcart is the main part of the withdrawable switch cabinet. After laying the guide rail, it can be pulled out from the switch cabinet by hand. During maintenance, only the handcart needs to be pulled out, which can shorten the scope of maintenance power failure. The static contacts are generally closed by a locking device to prevent maintenance personnel from accidentally touching the static contacts and causing electrical safety problems. When the handcart is pushing the switch cabinet, the locking device is gradually opened to allow the moving contacts on the handcart and the switch cabinet The static contacts in the combination. At present, the locking devices on the handcart switch cabinet are mostly realized by the opening and c...

AI Technical Summary

Problems solved by technology

At present, the locking devices on the handcart switch cabinet are mostly realized by the opening and closing of mechanical linkage baffles. This kind of locking device has high resistance, which often causes the handcart to be stuck in the process of moving and retreating, and is in a dilemma. stop for overhaul and cause a lot of trouble

[0003] China Patent Authorization Announcement No. CN 206432611 U, the date of the authorized announcement is 2017.08.22, the name is "a double-swing type handcart switch cabinet", which discloses a swing-in locking device, which meets the requirements of the double-line cabinet body, but This swing-in locking device still does not solve the problem that the handcart is easy to get stuck in the process of retreating

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