One-way valve

Abstract

The invention provides a one-way valve, which comprises a valve body, a valve core, a spring, a spring seat and an elbow, wherein the valve core is arranged in a valve body; the spring is arranged below the valve core and is used for supporting against the valve core; the spring seat is arranged below the spring and is used for limiting the spring; the elbow is connected to a charging port from the upper end of the valve body; the valve core comprises a valve rod and a valve head arranged at the top end of the valve rod; a spherical crown body is arranged at the top end of the valve head; a first circular truncated cone is arranged below the spherical crown body; a first annular clamping groove is arranged between the spherical crown body and the first circular truncated cone; a sealing ring is sleeved and clamped in the first annular clamping groove; an annular sealing line corresponding to the sealing ring is arranged at the lower end of the elbow connected to the charging port fromthe upper end of the valve body; the diameter of the sealing line is between the outside diameter of the bottom surface of the spherical crown body and the outside diameter of the sealing ring; and aplurality of connecting columns are inwards convexly arranged inside the valve body and are used for fixedly connecting the spring seat with the lower end of the valve body. The one-way valve provided by the invention has the advantages of reliable sealing and easiness for mounting and dismounting; and in addition, when the one-way valve works, the valve core is not easy to swing and dislocate aswell as leak and slip.

Description

technical field [0001] The invention relates to a one-way valve, which is used in a massage pool or a bathtub to control the flow of massage gas. Background technique [0002] The one-way valve is a common component in the water pipes of jacuzzi and pools. It is usually installed on the pipeline between the control box and the circular air channel of the jacuzzi or pool to control the flow of gas for massage and prevent water in the pool from reflow. [0003] Chinese Patent No. ZL200920208571.9, a utility model patent named "one-way valve" provides a one-way valve, such as figure 1 , 2 As shown, it includes a valve body 1, a valve core 2 set in the valve body 1 with a column rod 21 at one end and a spherical column head 22 at the other end, a sealing ring 4 set on the upper part of the valve body 1, and the sleeve and the valve core 2 The spring 3 on the column rod 21, the column head 22 of the valve core 2 is spherical, and the sealing ring 4 is in contact with the spher...

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a one-way valve to overcome the unreliable spherical surface seal of the existing one-way valve, the troublesome connection and assembly of the valve body and the elbow, and the integrated structure of the valve body and the spring fixing seat, which is not conducive to the later stage. Defects such as maintenance

Images