Double-moving valve

Abstract

The invention relates to a double-moving valve. The double-moving valve comprises a valve body for providing a flow space for a fluid, a valve block and a pressure pipe, wherein a water inlet pipe anda water outlet pipe are arranged at the bottom of the valve body, a sealing hole is formed between the tail end of the water inlet pipe and the tail end of the water outlet pipe, and a sealing pipe is coaxially arranged on the sealing hole; the valve block is used for sealing the sealing pipe, the valve block is connected to the interior of the water outlet pipe through a valve rod, and is coaxially located on the upper part of the sealing pipe; the pressure pipe is connected to the upper part of the valve body, a valve block driving mechanism is connected in the pressure pipe, and the valveblock driving mechanism comprises a pressure valve block and a pushing valve block; and a sealing cover is arranged at the top of the pressure pipe by the pressure pipe, a push rod is connected to thesealing cover through threads, the end part of the push rod is rotationally connected with the middle of the pushing valve block through a bearing, the top of the pressure valve block is connected tothe bottom of the pressure pipe through a diastolic spring A, the top of the pressure valve block is elastically connected with the bottom of the pushing valve block through a diastolic spring B, anda one-way valve used for supplementing pressure in the pressure pipe is arranged on the side wall of the pressure pipe.

Description

technical field [0001] The invention relates to a double-acting valve, which belongs to the field of pipeline safety equipment. Background technique [0002] As a shut-off device, valves are generally electric and manual hybrid structures. In emergency situations such as power outages, the valve can be closed manually, but obviously the manual closing method requires the valve stem to be rotated to close The rate is relatively low, and in an emergency, it is difficult to manually close the valve for such a long time, so a mechanism that can quickly close the valve in an emergency is needed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a double-action valve by overcoming the technical problems in the prior art. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A double acting valve comprising: [0006] A valve body that provides a flow space for the...

AI Technical Summary

Problems solved by technology

[0002] As a shut-off device, valves are generally electric and manual hybrid structures. In emergency situations such as power outages, the valve can be closed manually, but obviously the manual closing method requires the valve stem to be rotated to close The speed is relatively low. In an emergency, it is difficult to manually close the valve for such a long time, so a mechanism that can quickly close the valve in an emergency is needed.

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