CN201027994Y

CN201027994Y - Pipe valve

Info

Publication number: CN201027994Y
Application number: CNU2007200208927U
Authority: CN
Inventors: 刘旭明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-20
Filing date: 2007-04-20
Publication date: 2008-02-27
Anticipated expiration: 2017-04-20

Abstract

The utility model relates to a pipeline valve, comprising a valve cover, a valve body, a valve rod, a valve plate, a sealing cushion and a pressure ring. The structure of the utility model is characterized in that: the valve rod is integrated with a valve rod end plate; the sealing cushion is positioned in a groove between the valve plate and a convex part on the lower part of the valve plate, and is stuck on the lower surface of the valve plate; the outer edge of the valve plate is provided with a convex circular ring upwards; an outer wire of the pressure ring engages with an inner wire of the circular ring; the lower end of the circular ring pushes against the upper surface of the outer end of the valve rod end plate. The utility model is very good in effect, which ensures that water cannot seep inversely as screws are removed and the valve plate is seamless. As the sealing cushion is stuck under the valve plate, the lower end of the valve rod cannot be fixed with the valve plate, and a sealing ring cannot rotate along with the valve rod, thereby reducing wear and prolonging life-span.

Description

Pipeline valve

[affiliated technical field]

The utility model relates to the valve of fluid flow in the controlling plumbing fixtures, belong to the pipeline valve field.

[background technique]

The utility model artificer is a plumber, and according to the used stop valve of PPR pipeline on the examination Domestic market as shown in Figure 1: valve plate 3 is fixed on the lower end of valve rod 4 by screw 5, and sealing gasket 2 also pastes by screw 5 and fixes on the lower wall of valve plate 3.In use there are two big weakness in the pipe valve of this structure, and the one, inner water leakage phenomenon easily takes place hydraulic action: fluid flows out between the lower end surface of upper surface by valve plate 3 and valve rod 4 along screw 5 outer walls from bottom to top again in the valve body 1; The 2nd, valve plate 3 and sealing gasket 2 also rotated thereupon when valve rod 4 rotated, and caused the wearing and tearing of sealing gasket 2 easily, caused valve to be not closed completely when closing, and formed the valve internal water leakage phenomenon.

[summary of the invention]

The purpose of this utility model provides a kind of above-mentioned shortcoming that overcomes, long-lived pipeline valve.

The purpose of this utility model specific design scheme is as follows:

A kind of pipeline valve comprises valve plate, valve rod, sealing gasket, and its structural feature is that valve rod and valve rod end plate are one, in the groove of sealing gasket between valve plate and valve plate lower lobes part, and is attached on the valve plate lower surface; Protruding circular ring is upwards established in the valve plate outer; The outer silk of pressure ring and the internal thread interlock of annulus, the annulus lower end is against the outer end upper surface of valve rod end plate.

Effect of the present utility model is very good, owing to removed screw, valve plate is seamless, water can't be flowed out by reverse osmosis, because sealing gasket is fitted in below the valve plate, do not fixedly connected with valve plate in the valve rod lower end, seal ring can not rotate with valve rod, has reduced wearing and tearing, has prolonged working life.

[description of drawings]

Fig. 1 is existing pipeline valve structural representation

Fig. 2 is the utility model structural representation

1 is valve body among the figure, the 2nd, and sealing gasket, the 3rd, valve plate, the 4th, valve rod, the 5th, screw, the 6th, valve gap, the 7th, pressure ring.

[embodiment]

By accompanying drawing 2 as can be known the utility model structure comprise: valve plate 3, valve rod 4, sealing gasket 2, pressure ring 7, valve rod 4 is an one with valve rod end plate 4-1, sealing gasket 2 is stuck in the groove between valve plate 3 and the protruding 3-2 and is attached on valve plate 3 lower surfaces, and valve plate 3 outers are protruding circular ring 3-1; The outer silk of pressure ring 7 and the internal thread interlock of annulus 3-1, pressure ring 7 lower ends are against valve rod end plate 4-1 outer end upper surface.Valve rod 4 is an one with valve rod end plate 4-1, processing charges point thing, but can accomplish fully.Valve plate 3 lower lobes part 3-2 and valve plate 3 and valve plate 3 outer edge bulge annulus 3-1, the three also is an one.This structure valve effect has improved a lot: the one, because there is not screw to penetrate valve plate 3, there is not small sircle hole in the middle of the valve plate 3, and whole valve plate 3 does not seep water a little, has solved fluid in the original pipeline valve along the interior leakage phenomenon of screw 5.The 2nd, when whole valve rod 4 and valve plate 3 and sealing gasket 2 rotations descend and during throttle down; sealing gasket 2 contact valve bodies are hampered power and sealing gasket 2 and valve plate 3 are no longer rotated with valve rod 4; thereby protected sealing gasket 2 not frayed, avoided the interior leakage that produces because of sealing gasket 2 wearing and tearing.

Claims

1. a pipeline valve comprises valve plate, valve rod, sealing gasket, is characterized in: valve rod and valve rod end plate are one; In the groove of sealing gasket between valve plate and valve plate lower lobes part, and be attached on the valve plate lower surface; Protruding circular ring is upwards established in the valve plate outer; The outer silk of pressure ring and the internal thread interlock of annulus; The annulus lower end is against the outer end upper surface of valve rod end plate.