Manually-opened-and-closed gate valve

Abstract

The invention discloses a manually-opened-and-closed gate valve. The gate valve comprises a valve frame, a gate plate and a pushing mechanism, wherein the gate plate is arranged in the valve frame, the pushing mechanism is fixed to the valve frame and is in thread connection with the gate plate, a screw rod of the pushing mechanism rotates to push the gate plate to slide to open and close a valveport in the valve frame, and the top end of the gate plate corresponds to a scale on the valve frame to control the opening and closing size of the valve port. According to the gate valve, the problems that the opening and closing flow is not easy to control and the opening and closing labor intensity is high in the original solid particulate matter intercepting and opening and closing process aresolved, and the advantages that the structure is simple, opening and closing are accurate, the flow can be conveniently controlled, the operation strength is low, and the operation is easy and convenient are achieved.

Description

technical field [0001] The invention belongs to the technical field of valves and relates to a manually opened and closed slide valve. Background technique [0002] Valves are widely used, and usually cut off or control the flow of fluid or granular or powder materials. At present, the methods of cutting and flow control are different for solid particles and powder materials. Solid materials are usually stored in containers, relying on their own weight To discharge from the bottom of the container, an insert is often used at the discharge port, and the discharge port is opened and closed by pulling the insert. The problem is that the size of the discharge port cannot be precisely controlled, which affects the flow rate. High labor intensity. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a manual opening and closing flapper valve, which has a simple structure, adopts a gate plate in the valve frame, the propuls...

AI Technical Summary

Problems solved by technology

[0002] Valves are widely used, and usually cut off or control the flow of fluid or granular or powder materials. At present, the methods of cutting and flow control are different for solid particles and powder materials. Solid materials are usually stored in containers, relying on their own weight To discharge from the bottom of the container, an insert is often used at the discharge port, and the discharge port is opened and closed by pulling the insert. The problem is that the size of the discharge port cannot be precisely controlled, which affects the flow rate. High labor intensity

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