A T-type silent check valve

Abstract

The invention discloses a T-type mute check valve which comprises a valve body. A left flange and a right flange are arranged at the two ends of the valve body respectively, a lower flange is arranged on the lower side of the valve body, a valve rod support, a left valve rod and a right valve rod are arranged in a cavity body of the valve body, the valve rod support is fixed with the valve body, the left valve rod is hollow and transversely penetrates through the valve rod support, one end of the left valve rod is fixedly connected with a left valve petal located on the inner side of the left flange in a sleeved mode, and movably connected with a left flange support fixed at the position of the left flange in a sleeved mode, an inner reset spring is arranged in an inner cavity in the left valve rod, and the outer side of the left valve rod is in sleeved connection with an outer reset spring. One end of the right valve rod is movably connected in the inner cavity in the left valve rod in a sleeved mode, and the other end of the right valve rod is fixedly connected with a right valve pedal located on the inner side of the right flange in a sleeved mode and movably connected with a right flange support fixed at the position of the right flange in a sleeved mode. The design of the T-type valve body is combined with the specific valve rod structure so as to achieve multi-direction input and one-direction output of media, and the T-type mute check valve has the advantages of being low in noise and suitable for various horizontal medium pipelines, and meanwhile being simple in structure and easy to obtain.

Description

technical field [0001] The invention relates to a check valve, in particular to a silent check valve for multi-directional input and vertical pipelines of petroleum, chemical industry and water supply. Background technique [0002] Check valves are mainly used on pipelines where the medium flows in one direction, and only allow the medium to flow in one direction to prevent accidents, including valve body, bonnet ring, valve stem, return spring, valve disc and other components. Its main working principle The valve disc slides along the valve stem to realize the opening and closing of the valve port. The noise-absorbing check valve is suitable for installation in various horizontal pipelines. The traditional check valve can only be used to stop the flow of a single pipeline. For multi-directional input and output The pipeline must use multiple check valves, which increases the production cost and use cost. Contents of the invention [0003] The technical problem to be solv...

AI Technical Summary

Problems solved by technology

[0002] Check valves are mainly used on pipelines where the medium flows in one direction, and only allow the medium to flow in one direction to prevent accidents, including valve body, bonnet ring, valve stem, return spring, valve disc and other components. Its main working principle The valve disc slides along the valve stem to realize the opening and closing of the valve port. The noise-absorbing check valve is suitable for installation in various horizontal pipelines. The traditional check valve can only be used to stop the flow of a single pipeline. For multi-directional input and output The pipeline must use multiple check valves, which increases the production cost and use cost

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