Bellows globe valve

Abstract

The invention discloses a bellows globe valve, comprising a lower valve body and an upper valve body. The upper end of the lower valve body is detachably provided with the upper valve body; a transferbar penetrates through the upper valve body and the lower valve body; the outer side of the upper end of the transfer bar is provided with a turning disc in a manner of matching; a thread bushing isarranged at a middle position in the turning disc; the thread bushing and the transfer bar are in threaded connection; the upper valve body on which the turning disc is located is provided with a fixed seat; and the fixed seat and the thread bushing are rotatably connected. The bellows globe valve is simple and reasonable in structure; a tapered filter plate is arranged, and impurities can be conveniently stacked to the outer side of the tapered filter plate by such a tapered structure, therefore preventing the impurities from being laid flat on the filter plate, and guaranteeing the long-termeffective filter effect of the filter plate; when water flows past a filter nozzle, under the drive of fluid, a live shaft can be driven to rotate by driving blades, a rotating rod is driven to rotate by the live shaft, and scraping treatment can be performed on the surface of the filter plate by a hairbrush on the rotating rod; and such a rotary scraping way is good for the impurities on the surface of the filter plate to be converged from all directions.

Description

technical field [0001] The invention relates to the technical field of valve equipment, in particular to a bellows stop valve. Background technique [0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. [0003] The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications. [0004] The existing bellows stop valve lacks a mechanism for effectively filtering water quality, which leads...

AI Technical Summary

Problems solved by technology

[0004] The existing bellows stop valve lacks a mechanism for effectively filtering water quality, which leads to the problem of blockage of the filter inside the valve body after a short period of use

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