Multi-circulation-hole type safety cut-off flat valve

Abstract

The invention relates to a flat valve, and particularly relates to a multi-circulation-hole type safety cut-off flat valve. The upper end of a shell I is fixedly connected with a mounting ring; a buckle cover is rotationally connected in the mounting ring; the lower end of the buckle cover is fixedly connected with a plug column; the plug column is rotationally connected in the shell I; a center column is fixedly connected to the center of the lower end of the buckle cover; a middle through hole is formed in the middle of the center column from front to back; four shifting plates are uniformly and integrally connected to the center column in the circumferential direction; the upper ends of the two shifting plates located in front are each provided with a middle groove; the two shifting plates located in front are each provided with a bypass hole from front to back; the bypass holes communicate with the adjacent middle grooves; a plate body I is slidably connected in each middle groove; a communicating opening I is formed in the upper side of each plate body I; the communicating openings I can communicate with or be staggered from the corresponding bypass holes; the upper end of each plate body I is fixedly connected with a connecting block; a screw rod I is rotationally connected in each connecting block; the screw rods I penetrate through the plug column to be in threaded connection with the buckle cover; and a shell II is fixedly connected to the lower end of the shell I. According to the multi-circulation-hole type safety cut-off flat valve, the effect of single-inlet single-row, single-inlet double-row or single-inlet three-row of an upper-layer passage can be achieved according to adjustment.

Description

technical field [0001] The invention relates to a flat valve, in particular to a multi-hole safety shut-off flat valve. Background technique [0002] For example, the publication number is CN211779083U, a wear-resistant and corrosion-resistant oil production flat valve, comprising a flat valve main body and a control assembly arranged inside the flat valve main body. The oil pipe is connected; the control assembly is slidingly installed inside the main body of the flat valve along the longitudinal direction, the control assembly is provided with a through hole and its bottom is fixedly connected with the lower end cover, and the top of the control assembly extends to the outside of the main body of the flat valve through the upper end cover And it is provided with a turntable. The utility model adopts seals and coatings, which are leak-proof, anti-corrosion and wear-resistant, and enhances the service life of the device; it adopts a control valve stem with a through hole, a...

AI Technical Summary

Problems solved by technology

The utility model adopts seals and coatings, which are leak-proof, anti-corrosion and wear-resistant, and enhances the service life of the device; it adopts a control valve stem with a through hole, a control baffle plate and a control spring to control the communication and connection inside the main body of the flat valve. Partition; the combination of slider and L-shaped chute enables the control valve stem to be stuck at any position within the range of 0° to 90° clockwise rotation, thereby adjusting the flow rate inside the main body of the flat valve, but the flat valve cannot realize multi-flow function

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