Gate valve with movable protection range

Abstract

The protective range movable gate valve comprises a valve body, a hydraulic assembly, a sealing assembly, a first pull rope and a second pull rope, the hydraulic assembly is installed at the upper end of the valve body through a bolt, the output end of the hydraulic assembly is fixedly connected with the sealing assembly, and the sealing assembly is installed in the valve body; a first air bag assembly is connected to the outer surface of the sealing assembly in an adhesive mode, and a first air conveying hose is installed at the outer end of the first air bag assembly in a penetrating mode. According to the gate valve with the movable protection range, the self-moving nested protection assembly is arranged, along with rising of the water level, a reserved floating block making contact with the nested protection assembly moves upwards, then the nested protection assembly is driven to extend upwards along the inner end of a built-in protection plate through a corresponding pull rope, and therefore the vertical protection range of the valve body is automatically increased; and in cooperation with dynamic changes of the water level, movable self-adaptive protection range adjustment treatment work is achieved, and the practicability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of plug-in valves, in particular to a protective range movable plug-in valve. Background technique [0002] As a relatively common closed valve, the plug-in valve is widely used in various production fields. It is popularized and loved by users for its convenient operation mode and protective effect. Therefore, the production quality of the plug-in valve is also more important and rigorous, but The existing plug-in valve still has certain defects, such as: [0003] For example, the high-temperature water-cooled flapper valve with publication number CN216078365U can use the water jacket inlet metal hose to introduce external cooling water into the inside of the flapper valve flapper, and then use the water jacket outlet metal hose to insert the flapper valve The cooling water inside the plate is discharged, so that the plug-in valve has a cooling water cooling structure, but most of the existing plug-in valv...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a movable sliding plate valve with a protective range to solve the problem that most of the directly closed hard-sealed waterproof structures proposed in the above-mentioned background technology lead to large closed gaps and are prone to accumulation of impurities or water leakage The phenomenon, the range is relatively fixed, and it cannot adapt to the change of the use environment to automatically adjust its protection range, resulting in the problem that the environment it contacts cannot be protected in time due to climate influence or water level changes.

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