Lifting type closure swing check valve

Abstract

The invention relates to a lifting type closure swing check valve, and belongs to the technical field of control devices on medium pipelines. The lifting type closure swing check valve comprises a valve body, a valve deck arranged on the valve body, a valve shaft which is arranged at the inner upper end of the valve body and is close to one end of a water inlet, and a valve clack fixedly connected to the valve shaft, wherein a valve seat used for being sealed with the valve clack is arranged at the water inlet end of the valve body, the inner side of the valve clack is fixedly connected with a position adjusting block, the valve deck is provided with an installation hole, a linear lifting driving device is installed inside the installation hole, the output end of the linear lifting driving device penetrates into the installation hole, and a position adjusting wheel matched with the position adjusting block is fixed to the output end of the linear lifting driving device. The lifting type closure swing check valve has the function of closure (flow adjustment), the linear driving lifting device is installed at the upper portion of the valve deck, and the shaft end of the linear driving lifting device acts on the position adjusting block to achieve adjustment of the opening degree of the valve.

Description

technical field [0001] The invention belongs to the technical field of control devices on medium pipelines, and in particular relates to a lift-type shut-off and spin-up check valve. Background technique [0002] The swing check valve is the most common and the most widely applicable check valve. It is widely used, but it has the following defects: the opening and closing space of the swing check valve is large, so the closing water of the swing check valve every time it is closed Hammers are large, damage pumping stations or pipelines, and are prone to clogging. At the same time, the opening of the disc is not adjustable. Contents of the invention [0003] The object of the present invention is to provide a lift-type shut-off and swing-up check valve aiming at the defects of the prior art. [0004] The technical scheme adopted by the present invention is: comprising a valve body, a valve cover arranged on the valve body, a valve shaft arranged at the upper end of the va...

AI Technical Summary

Problems solved by technology

[0002] The swing check valve is the most common and the most widely applicable check valve. It is widely used, but it has the following defects: the opening and closing space of the swing check valve is large, so the closing water of the swing check valve every time it is closed The hammer is very large, damages the pumping station or the pipeline, and is easy to block

At the same time, the opening of the disc is not adjustable

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