Vertical check valve

Abstract

The invention discloses a vertical check valve. The vertical check valve comprises a valve body, a valve core seat and a valve core, wherein the valve core seat is mounted in the valve body; the valvecore is mounted in the valve core seat; the valve body is formed by welding; a water through hole of the valve core seat is a conical hole; the valve core comprises a movable valve core and a guide plate; the movable valve core is arranged in the form of a frustum and corresponds to the water through hole of the valve core seat; the guide plate is mounted at the part, facing a water outlet, of the valve core; the valve core is opened when the water passes through; and along a guide groove of the valve body, the guide plate enters the guide groove. According to the vertical check valve, the structural design is simple; as a control power supply does not need to be additionally mounted, power is saved and energy is saved; the valve core adopts a conical polyurethane material so that the valve core is wear-resistant; as the valve core is arranged in the form of the frustum, the sealing effect is not affected by water pressure by using a screw rod and a press plate; and moreover, the larger the water pressure is, the better the sealing is; and therefore, product materials are greatly saved, and the machining cost is greatly reduced.

Description

technical field [0001] The invention relates to a check valve, in particular to a vertical check valve. Background technique [0002] At present, most of the check valves on the market are castings, which are heavy in structure, high in casting cost, and cause great environmental pollution. And the structure of the spool is too simple, the inside is sealed with copper inserts, and backflow will occur when the pressure is too high, so the sealing effect is not ideal. Moreover, the sealing joint surface is easy to wear after being used for a period of time, causing the non-normal use of the non-return valve. Contents of the invention [0003] In order to solve the above problems, the present invention provides a light weight and low cost vertical check valve constructed by welding. The valve core is made of conical polyurethane material, which is wear-resistant. Affected by water pressure. [0004] In order to achieve the above object, the technical solution adopted by th...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the check valves on the market are castings, which are heavy in structure, high in casting cost, and cause great environmental pollution.

And the structure of the spool is too simple, the interior is sealed with copper inserts, and backflow will occur when the pressure is too high, so the sealing effect is not ideal

Moreover, the sealing joint surface is easy to cause wear after being used for a period of time, causing the non-normal use of the check valve

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