Multifunctional check valve capable of cleaning away and filtering impurities conveniently

Abstract

The invention discloses a multifunctional check valve capable of cleaning away and filtering impurities conveniently. The multifunctional check valve comprises a valve body, an adjusting assembly, a motor and a limiting assembly. A mounting pipe and a water outlet pipe are arranged at the left end and the right end of the valve body correspondingly, a fixed ring is fixed to the right side of a movable rod, the motor is fixed to the right side of the valve body, the output end of the motor is connected with a lead screw, and trapezoidal blocks are slidably connected to the upper end and the lower end in the mounting pipe. The multifunctional check valve capable of cleaning away and filtering impurities conveniently is provided with a sliding groove and limiting blocks, impurities in fluid can be filtered through a filter screen in a water inlet pipe, blockage caused by impurity attachment is avoided, the water inlet pipe and a filter plate can be conveniently mounted in the mounting pipe through the sliding groove in the surface of the water inlet pipe, meanwhile, the water inlet pipe can be rotated to enable the limiting blocks at the two ends of the inner wall of the mounting pipe to be clamped into limiting grooves in the surface of the water inlet pipe, so that the water inlet pipe is limited, the water inlet pipe can be conveniently dismounted after long-time use to replace the filter plate, and practicability is improved.

Description

technical field [0001] The invention relates to the related technical field of check valves, in particular to a multifunctional check valve which is convenient for cleaning and filtering impurities. Background technique [0002] The check valve is a kind of automatic valve, its function is to make the medium flow in one direction only, and prevent the flow in the opposite direction, so that the valve disc will open under the pressure of the fluid flowing in one direction, and when the fluid flows in the opposite direction, it will be in the fluid. Under the pressure, the valve clack is automatically closed to cut off the flow. As the types of check valves continue to increase, the existing check valves are not convenient to filter impurities in the fluid during use, and it is easy for the impurities in the fluid to adhere to the valve. Because the check valve usually works automatically, it is inconvenient to adjust the flow of fluid during use, and because the opening of th...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-functional check valve that is convenient for cleaning and filtering impurities, so as to solve the problem that the existing check valves proposed in the above background technology are inconvenient to filter impurities in the fluid during use, and are not easy to adjust. The flow rate of the fluid, and it is not convenient to keep the valve flap in the open state under the condition of low flow rate, the problem of low functionality

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