Door stop mechanism used for built-in contact box of switch cabinet and using method thereof

Abstract

The invention relates to the protection technology field of a built-in contact box of a switch cabinet, and especially relates to a door stop mechanism used for the built-in contact box of the switchcabinet and a using method thereof. The door stop mechanism comprises a box body. A horizontally-arranged supporting plate is fixed to a bottom of the box body. An upper baffle plate and a lower baffle plate used for shielding a static contact are included. A vertically upward guide column is fixed to the supporting plate. A balance weight plate is slidably connected to the guide column, a liftingmechanism is arranged on the supporting plate, the lifting mechanism is connected with the balance weight plate, side plates are symmetrically fixed to two side walls in the box body, opening and closing mechanisms used for opening or closing the upper baffle plate and the lower baffle plate are arranged on the side plates, and the opening and closing mechanisms are connected with the balance weight plate. By using the door stop mechanism used for the built-in contact box of the switch cabinet and the using method thereof, the lifting mechanism has a labor-saving effect, and the opening and closing mechanism has a stroke amplifying effect so that a space occupation volume is reduced, quick opening or closing of the static contact is realized, and connection / disconnection efficiency of thecontact box is improved.

Description

technical field [0001] The invention relates to the technical field of protection for a built-in contact box of a switch cabinet, in particular to a doorstop mechanism for a built-in contact box of a switch cabinet and a method for using the same. Background technique [0002] In order to ensure the safety of use, the built-in contact box of the switchgear usually has a valve mechanism at the static contact, which is convenient for the protection of the static contact when the switchgear is in the operating state or maintenance state. The existing contact box For the door stop mechanism, since the valve baffle adopts the method of translation in the same direction to block the static contacts, the valve mechanism takes up a large space, and requires a large moving stroke of the circuit breaker trolley to fully open the valve baffle , so that the connection / disconnection efficiency of the contact box is low. In view of this, we propose a doorstop mechanism for the built-in co...

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Problems solved by technology

[0002] In order to ensure the safety of use, the built-in contact box of the switchgear usually has a valve mechanism at the static contact, which is convenient for the protection of the static contact when the switchgear is in the operating state or maintenance state. The existing contact box For the door stop mechanism, since the valve baffle adopts the method of translation in the same direction to block the static contacts, the valve mechanism takes up a large space, and requires a large moving stroke of the circuit breaker trolley to fully open the valve baffle , so that the connection / disconnection efficiency of the contact box is low. In view of this, we propose a door stop mechanism for the built-in contact box of the switch cabinet and its use method

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