Protective valve seat structure of gate valve

Abstract

The invention discloses a protective valve seat structure of a gate valve, comprising a valve body, wherein through holes are arranged in the valve body, a flashboard mutually matched with the through holes is arranged in the valve body, the upper end of the flashboard is connected with a valve rod arranged on the valve body, a diagonal upper guard plate is fixedly arranged in the through hole above the flashboard, and a separate lower guide plate is fixedly arranged in the through hole below the flashboard. The invention has the advantages that simple structure and convenient operation are realized; the arranged diagonal upper guard plate can prevent materials from entering a guide rail region of the flashboard during the material falling down process so as to reduce the material stacking phenomenon of the guide rail region of the flashboard, keep the flashboard to flexibly open and close, reduce the direct abrasion of the flashboard from the materials and prolong the service life of the flashboard; the arranged separate guide plate can support the flashboard when the flashboard is closed so as to prevent the deformation of the flashboard due to the material load; simultaneously, the residual materials in the guide rail region of the flashboard can be cleared during the flashboard opening and closing processes, thus the blocking phenomenon of the flashboard can be avoided.

Description

technical field [0001] The invention relates to a gate valve, in particular to a protective valve seat structure of the gate valve. Background technique [0002] Plug-in valves are widely used in metallurgy, mining, building materials and other industries to adjust and cut off material transportation. During use, the valve seat is often worn or blocked by materials and dust, resulting in the plug-in valve not being able to If it is completely closed, the phenomenon of material flow will occur, thus losing the function of the flapper valve to adjust and cut off the medium, which will bring the loss of system materials to the enterprise and increase the management and maintenance costs of the enterprise. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a protective valve seat structure of a flapper valve with a simple structure and good flapper closing effect. [0004] In order to solve the above technical problems...

AI Technical Summary

Problems solved by technology

[0002] Plug-in valves are widely used in metallurgy, mining, building materials and other industries to adjust and cut off material transportation. During use, the valve seat is often worn or blocked by materials and dust, resulting in the plug-in valve not being able to Completely closed, resulting in the phenomenon of material flow, thus losing the function of the flapper valve to adjust and cut off the medium, bringing the loss of system materials to the enterprise, and increasing the management and maintenance costs of the enterprise

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