A squeeze type automatic sealing gate valve

Abstract

The invention discloses an efficient extrusion type automatic sealing gate valve. The efficient extrusion type automatic sealing gate valve comprises a gate valve body, a valve rod and a positioning block, the valve rod is arranged on the inner side of the gate valve body, the inner wall of a side window is attached to the edge side of a filter cartridge, moreover, the filter cartridge is arrangedat the bottom of the inner side of the gate valve body, a bottom plate is fixed at the bottom end of a valve plate, moreover, the bottom end of the bottom plate is attached to the upper end surface of a contact plate, moreover, the contact plate is fixed in the gate valve body, the positioning block is fixed on the upper end surface of the contact plate, and the inner side of the positioning block is attached to the edge side of the bottom plate. According to the efficient extrusion type automatic sealing gate valve, a novel structural design is adopted so that the efficient extrusion type automatic sealing gate valve can perform extrusion self-locking after the valve rod rotates to control the gate plate for closing, the phenomenon that due to the fact that the valve rod and the gate plate are loosened, the sealing performance is affected is avoided, moreover, a extrusion positioning structure is designed, so that the stability of the gate plate during closing is further ensured, meanwhile, a detachable filtering structure is designed, and the filter structure can also cooperate with the gate plate for positioning and sealing, so that the overall sealing performance of the efficient extrusion type automatic sealing gate valve is ensured.

Description

technical field [0001] The invention relates to the technical field of gate valves, in particular to a squeeze-type automatic sealing gate valve. Background technique [0002] The gate valve is a valve that controls the full opening and closing of the internal liquid through the gate. The direction of movement of the gate is perpendicular to the direction of the fluid. According to the difference of the gate, it can be divided into two types: rigid gate valve and elastic gate valve. Different closing methods can be divided into lifting stem gate valve and rotary stem gate valve. Because the sealing effect of gate valve is better than that of butterfly valve and other valves, and because the internal medium channel is linear, the flow resistance is small, and it is convenient to open and close, and it is not easy to produce water hammer. phenomena are widely used. [0003] With the continuous use of gate valves, the structure design of traditional gate valves is simple. Afte...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a squeeze-type automatic sealing gate valve to solve the problems in the above-mentioned background technology that the valve stem and the valve plate cannot be stably fixed, the sealing effect is poor, and there is no filtering function.

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