Device for interlocking chassis vehicle with cabinet door of circuit breaker chamber
A circuit breaker room and interlocking device technology, which is applied to switchgear, pull-out switch cabinets, electrical components, etc., can solve the problems of high spring production requirements, reduced interlock reliability, and low mechanical strength of the door panel lock tongue and hook. problems, to achieve the effect of safe and reliable operation and convenient control
Active Publication Date: 2012-01-18
EATON ELECTRICAL EQUIP CO LTD
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Problems solved by technology
Although the bolt structure is simple, on the one hand, the locking force of the bolt is controlled by the spring, which requires high production of the spring; The mechanical strength of the part is not high, which also reduces the reliability of the interlock
Method used
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[0019] See Figure 1~3 As shown, the chassis car and circuit breaker chamber door interlocking device of the present invention includes a positioning frame 4 installed in the circuit breaker chamber, a frame 3 of the chassis car, and a cabinet door 2 hinged on the end face of the circuit breaker chamber. The device room is located in the middle of the cabinet body 1. The positioning frame 4 is composed of the rear baffle plate, the front baffle plate 4-2, the two side plates and the reinforcing beam in the middle. The chassis car is used to place the circuit breaker, the frame 3 The rollers 3-1 installed on both sides respectively, the rollers 3-1 are arranged on the guide rails 4-1 on both sides of the positioning frame 4, the screw mandrel 12 is installed on the positioning frame 4 through the support seat 13, and the screw mandrel 12 is screwed on the On the nut seat 22 connected to the frame 3, when the circuit breaker is placed on the chassis, the operating handle 11 is i...
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The invention relates to a device for interlocking a chassis vehicle with a cabinet door of a circuit breaker chamber. A front baffle plate of a positioning frame is provided with a locking plate; an elastic member is sleeved on a connector; an external supporting plate covers the locking plate and is connected with the front baffle plate; a first stop block of a lead screw position-limiting mechanism is connected with a first rotary shaft through a first connecting shaft; a second connecting shaft installed on the first rotary shaft is arranged in a spiral guide groove of a first sleeve; an offsetting spring is installed between the first rotary shaft and the first sleeve; the first sleeve in a free state drives the first stop block to be installed between the locking plate and the frontbaffle plate; a second rotary shaft of a cabinet door position-limiting mechanism is installed on the external supporting plate; a second stop block is connected with the second rotary shaft through the first connecting shaft; the second connecting shaft installed on the second rotary shaft is arranged in a spiral guide groove of a second sleeve; an offsetting spring is installed between the first rotary shaft and the second sleeve; and the second sleeve in a free state drives the second stop block to be installed in a position-limiting groove of the cabinet door baffle plate. The device forinterlocking the chassis vehicle with the cabinet door of the circuit breaker chamber has the advantages of rational and compact structure, reliability for interlocking, and reduction of production cost.
Description
technical field [0001] The invention relates to an interlocking device for a chassis car and a cabinet door of a circuit breaker room, and belongs to the technical field of medium and high voltage removable switchgear. Background technique [0002] The medium and high voltage switchgear is usually composed of a control room, a circuit breaker room, a busbar room and a cable room. A group of static contact seats as a static contact device are fixed in the circuit breaker room. The static contacts of the incoming and outgoing lines on the static contact seat are The head is connected with the external high-voltage power supply circuit. When the circuit breaker chassis is pushed into the circuit breaker room, the upper and lower contacts of the circuit breaker chassis are respectively engaged with the static contacts of the incoming and outgoing lines. After the circuit breaker is closed, the connection on the circuit is realized. After operating the propulsion mechanism to pu...
Claims
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IPC IPC(8): H02B11/133
Inventor 王玉军李庆跃王世峰周凯曹孝祖顾志伟钱松江军陈军
Owner EATON ELECTRICAL EQUIP CO LTD
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