CN2345790Y

CN2345790Y - Double-conical-surface sealed stop valve

Info

Publication number: CN2345790Y
Application number: CN 98238659
Authority: CN
Inventors: 潘克
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-25
Filing date: 1998-08-25
Publication date: 1999-10-27
Anticipated expiration: 2008-08-25

Abstract

The utility model relates to a sealed stop valve with a double conical surface, which is composed of a valve body, a valve cover, a valve core, and a sealing washer. After the assembly of the valve body and the valve cover, an inner cavity whose upper part and lower part are respectively provided with a conical surface inside the valve; the valve core can carry out an axial movement in a smooth round hole of the inner cavity, and the opening and the closing process of the valve can be completed. In the utility model, the rotary opening and closing form of the existing stop is changed into the axial movement, and the opening and the closure of the valve can be completed by the fit of the two pairs of conical surfaces; so the utility model has the advantages of flexible opening and closure, reliable sealing performance, and long service life.

Description

Bipyramid face seal stop valve

The utility model relates to a kind of hand stop valve, particularly its keying form.

The keying form of existing stop valve mostly is flashboard or commutating structure, in working life, and sealability, manufacture costs etc. all have deficiency in various degree.

The utility model proposes a kind of and existing stop valve and opens and closes the diverse bipyramid face seal of form stop valve for overcoming above-mentioned deficiency.

Bipyramid face seal stop valve has valve body, the useful valve gap that is threaded on the valve body, the inner chamber of valve has spool, is characterized in: body cavity is a circular hole, and there is the screw thread that links to each other with valve gap the circular hole upper end, there is conical surface at the fluid input place at circular hole middle part, and the circular hole lower end is a fluid output; Conical surface is arranged in the valve gap, and middle porose, the outside thread of valve gap connects valve body, and there is seal washer the centre; Spool is installed in the inner chamber circular hole of valve body, and the pull bar on the spool penetrates from the valve gap mesopore, and there is handle ball the pull bar upper end, and the two ends, rubber column surface of spool are conical surface, and the centre is the cylndrical surface, and the rubber column of spool and pull bar are the assembly parties of making one.

The utility model bipyramid face seal stop valve has been compared following benefit with existing stop valve: one, the rotation of existing stop valve is opened and closed form, make axial push-and-pull into and open and close, elsewhere, there is conical surface valve body and valve gap inside, be respectively applied for when closing and open and seal, the cylndrical surface, rubber column stage casing of spool and the smooth circular hole of valve body are resilient engagement, thus the utlity model has, simple in structure, open and close flexibly, seal reliable characteristics.Its two, the valve body of this valve and valve gap can be used the plastics manufacturing, have good anti-corrosion and lower manufacture cost, long working life.Its three, this valve can be made the usefulness of the stop valve in the pipeline, or makes the usefulness of terminal water tap.Also can be used for jet, have good leak resistance.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the main sectional view of bipyramid face seal stop valve in the accompanying drawing.

Fluid input 11 is arranged on the valve body 1 among the figure, fluid output 12, the inlet outside is useful on the outside thread 16 of connecting pipeline, export 12 outsides outside thread 13 is arranged, valve gap 2 is connected with valve body 1 usefulness screw thread, there is seal washer 4 centre, conical surface 21 is arranged in the valve gap 2, six sides 22 are arranged above the valve gap 2, be used for valve gap 2 is tightened in valve body 1, valve body 1 has circle hole shape inner chamber 15, there is one section conical surface 14 at the fluid input place of inner chamber 15, spool 3 is installed in the smooth circular hole of inner chamber 15, rubber column 31 surperficial stage casings on the spool 3 are that the smooth circular hole of cylndrical surface and inner chamber 15 is a resilient engagement, in opening-closing process, promptly play the guiding role and seal, rubber column 31 surfaces are up and down conical surface, last conical surface matches with the internal conical surface 21 of valve gap 2, the top seal of valve when being used to open, following conical surface matches with the conical surface 14 of valve body 1 inner chamber 15, seal during throttle down, in the rubber column 31 of spool 3 pull bar 32 is arranged, pull bar 32 passes from valve gap 2 mesopores, pull bar 32 is a Spielpassung with valve gap 2 holes, handle ball 33 is threaded on the pull bar, drawing handle ball 33, make spool 3 in the inner chamber 15 of valve, make axial motion, to finish closing or opening of stop valve.

Claims

1. a bipyramid face seal stop valve has the useful valve gap that is threaded on valve body, the valve body, and the inner chamber of valve has spool, it is characterized in that: body cavity is a circular hole, there is the screw thread that links to each other with valve gap the circular hole upper end, and there is conical surface at the fluid input place at circular hole middle part, and the circular hole lower end is a fluid output; Conical surface is arranged in the valve gap, and middle porose, the outside thread of valve gap connects valve body, and there is seal washer the centre; Spool is installed in the inner chamber circular hole of valve body, and the pull bar on the spool penetrates from the valve gap mesopore, and there is handle ball the pull bar upper end, and the two ends, rubber column surface of spool are conical surface, and the centre is the cylndrical surface.

2. by the described stop valve of claim 1, it is characterized in that: described spool, its rubber column and pull bar are the assembly parties of making one.