CN205504180U - Corrugated pipe ball valve - Google Patents
Corrugated pipe ball valve Download PDFInfo
- Publication number
- CN205504180U CN205504180U CN201620152600.4U CN201620152600U CN205504180U CN 205504180 U CN205504180 U CN 205504180U CN 201620152600 U CN201620152600 U CN 201620152600U CN 205504180 U CN205504180 U CN 205504180U
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- bellows
- lower ring
- valve rod
- valve
- ring
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Abstract
The utility model discloses a corrugated pipe ball valve, from bottom to up adorns first bellows subassembly, second bellows subassembly in proper order on the valve rod, first bellows subassembly includes upper and lower ring, sets up first bellows between the upper and lower ring, and upper and lower intra -annular hole sets up the groove of assembly usefulness, and groove and a follow -up guide that pierces through the valve rod on just fitting with a contraceptive ring connect, and the runner band welds with the plane angle of topping bar of valve rod, second bellows subassembly includes and sets up the second bellows between the upper and lower ring by upper and lower ring, fits with a contraceptive ring through the fastener and sets up and be connected at bush first, second bellows subassembly periphery to realize the static seal through sealed pad of second, the circumference symmetry is equipped with the stop pin on the runner band, and the stop pin cup joints with the axial groove on lining inner cavity upper portion, a seal gasket is equipped with to topping bar between bottom surface and the valve body tang plane suitable for reading of bush, second bellows subassembly top sets up the apron. The utility model discloses fly rational in infrastructurely, sealing performance is good, convenient to use.
Description
Technical field
The utility model relates to a kind of bellows ball valve.
Background technology
The valve that high temperature and high pressure condition uses uses traditional packing seal structure, not only service life is short, and leak and exceed standard, the gate valve of many revolutions, stop valve all use bellows component seal form, but metal bellows can only be made axial displacement and bear load, circumference torsion loads and circumference angular displacement must not be born.
Summary of the invention
The utility model flies purpose and is to provide a kind of rational in infrastructure, good seal performance, bellows ball valve easy to use.
Technical solution of the present utility model is:
A kind of bellows ball valve, including valve body, valve seat, spheroid, valve rod, is characterized in that: fill the first bellows component, the second bellows component on valve rod the most successively；Described first bellows component includes upper and lower ring, arranges the first bellows between upper and lower ring, and upper and lower ring endoporus arranges the groove of assembling, and groove and the follower peg penetrating valve rod on upper ring is socketed, lower ring and the terrace welded corner joint of appearing on the stage of valve rod；Described second bellows component includes upper and lower ring, second bellows is set between upper and lower ring, upper ring is connected with the lining being arranged on first, second bellows component periphery by securing member, and realize static seal by the second sealing gasket, on lower ring, circumference is arranged with stop pin, stop pin is socketed with the axial groove on lining inner chamber top, with the angular movement of spacing second bellows component；Lining top bar between bottom surface and valve body seam plane suitable for reading, equipped with the first gasket seal；Second bellows component is provided above the cover plate being sleeved on valve rod, being fixedly connected with the valve body.
The length of the first bellows is 0.5-2 times of the second Bellows Length.
The utility model is rational in infrastructure, good seal performance, easy to use.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the utility model.
Detailed description of the invention
A kind of bellows ball valve, including valve body 1, valve seat, spheroid 3, valve rod 4, valve rod fills the first bellows component, the second bellows component the most successively；Described first bellows component includes upper and lower ring 5,6, first bellows 7 is set between upper and lower ring, upper and lower ring endoporus arranges the groove 8,9 of assembling, and groove and the follower peg 10 penetrating valve rod on upper ring is socketed, lower ring and the terrace welded corner joint of appearing on the stage of valve rod；Described second bellows component includes upper and lower ring 11,12, second bellows 13 is set between upper and lower ring, upper ring is connected with the lining 14 being arranged on first, second bellows component periphery by securing member, and realize static seal by the second sealing gasket 15, on lower ring, circumference is arranged with stop pin 16, stop pin is socketed with the axial groove 17 on lining inner chamber top, with the angular movement of spacing second bellows component；Lining top bar between bottom surface and valve body seam plane suitable for reading, equipped with the first gasket seal 18；Second bellows component is provided above the cover plate 19 being sleeved on valve rod, being fixedly connected with the valve body.
The length of the first bellows is 0.5-2 times of the second Bellows Length.
The assembly method of a kind of bellows ball valve, comprises the following steps:
(1) welding bellows assembly: use argon arc welding method to be welded with corresponding upper ring and lower ring respectively by first, second bellows, form first, second bellows component；During the first bellows components welding, the groove of upper and lower ring endoporus to be on same median plane；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
(2) assembling: valve rod inserts valve body from the top down, valve rod lower end is connected with spheroid corresponding aperture by flat tenon, side's tenon, spline or band key cylindrical section；Lining is inserted from the top down valve body, the bottom endoporus cylindrical corresponding with valve rod of lining coordinates, lining lower surface is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, prevent operating mode lower valve rod from flying out, topping bar of lining fills the first gasket seal between bottom surface and valve body seam plane suitable for reading, and is placed on by the second gasket seal in the seam of lining upper surface；Lower annular distance at the second bellows component is inserted into stop pin；Second bellows component is inserted in lining from the top down, stop pin and the axial groove matched in clearance on lining inner chamber top, slide up and down steadily；Cover plate is inserted in valve rod and under push away, the first bellows component lower plane and the gasket seal of lining lower plane is compressed by securing member, bellows has the predeformation amount of setting simultaneously, to guarantee plane and the seal pressure of the second bellows component lower plane on the first bellows component under original state.
The course of work: during valve opening and closing, driving means band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, first bellows component under the effect of follower peg with stem movement, second bellows component is inactive state under the effect of stop pin, and the upper plane of the first bellows component tightly contacts with the lower plane of the second bellows component, and has the precompressed responsive to axial force of bellows, despite the motion of relative 90 °, remain to reliably seal.
Claims (2)
1. a bellows ball valve, including valve body, valve seat, spheroid, valve rod, is characterized in that: fill the first bellows component, the second bellows component on valve rod the most successively；Described first bellows component includes upper and lower ring, arranges the first bellows between upper and lower ring, and upper and lower ring endoporus arranges the groove of assembling, and groove and the follower peg penetrating valve rod on upper ring is socketed, lower ring and the terrace welded corner joint of appearing on the stage of valve rod；Described second bellows component includes upper and lower ring, second bellows is set between upper and lower ring, upper ring is connected with the lining being arranged on first, second bellows component periphery by securing member, and realize static seal by the second sealing gasket, on lower ring, circumference is arranged with stop pin, stop pin is socketed with the axial groove on lining inner chamber top, with the angular movement of spacing second bellows component；Lining top bar between bottom surface and valve body seam plane suitable for reading, equipped with the first gasket seal；Second bellows component is provided above the cover plate being sleeved on valve rod, being fixedly connected with the valve body.
A kind of bellows ball valve the most according to claim 1, is characterized in that: the length of the first bellows is 0.5-2 times of the second Bellows Length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152600.4U CN205504180U (en) | 2016-03-01 | 2016-03-01 | Corrugated pipe ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152600.4U CN205504180U (en) | 2016-03-01 | 2016-03-01 | Corrugated pipe ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205504180U true CN205504180U (en) | 2016-08-24 |
Family
ID=56727517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620152600.4U Active CN205504180U (en) | 2016-03-01 | 2016-03-01 | Corrugated pipe ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205504180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546146A (en) * | 2016-03-01 | 2016-05-04 | 江苏神通阀门股份有限公司 | Corrugated-pipe ball valve and assembly method thereof |
-
2016
- 2016-03-01 CN CN201620152600.4U patent/CN205504180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546146A (en) * | 2016-03-01 | 2016-05-04 | 江苏神通阀门股份有限公司 | Corrugated-pipe ball valve and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |