A micro-resistance slow-closing noise reduction check valve

Abstract

The invention discloses a micro-resistance slow-closing noise-eliminating check valve, which specifically relates to the field of check valves. It includes a valve body. Two joints are arranged at both ends of the valve body. The valve body is movably connected with the joint, the upper end of the valve body is fixedly installed with a mounting seat, and the inside of the valve body is fixedly installed with a retaining ring. In the present invention, by setting the first magnetic button, the second magnetic button, the guide column and the spring, when the water flow stops, the spring will push the valve clack back to its original position, and at the same time, the valve clack will drive the first magnetic knob to the fixed block during the moving process. The second magnetic button on one side is close, and the first magnetic button and the second magnetic button are at the same level. When the first magnetic button and the second magnetic button are close to each other, a certain repulsion will be generated. When the spring is damaged or the elastic coefficient drops At the same time, the repulsive force generated between the first magnetic button and the second magnetic button will also push the valve disc back to its original position, and the dual protection of the spring and the magnetic button will avoid affecting the use of the noise reduction check valve.

Description

technical field [0001] The invention relates to the field of check valves, and more specifically, the invention relates to a micro-resistance slow-closing noise-eliminating check valve. Background technique [0002] The micro-resistance slow-closing noise-reducing check valve is used in industrial, urban water supply and drainage pipelines, high-rise residential buildings, high-end hotels, and pressurized water pumps. . [0003] However, when the above-mentioned technical solution is actually used, if the buffer mechanism inside the existing noise-absorbing check valve is mainly supported by a spring, after a period of use, the spring is prone to damage or the coefficient of elasticity decreases, which affects the movement of the disc. Thus affecting the use of the muffler check valve. Contents of the invention [0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a micro-resistance slow-closing noise-...

AI Technical Summary

Problems solved by technology

[0003] However, when the above-mentioned technical solution is actually used, if the buffer mechanism inside the existing noise-absorbing check valve is mainly supported by a spring, after a period of use, the spring is prone to damage or the coefficient of elasticity decreases, which affects the movement of the disc. Thus affecting the use of the muffler check valve

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