CN203627887U - Valve base spring dust-proof structure for ball valve - Google Patents
Valve base spring dust-proof structure for ball valve Download PDFInfo
- Publication number
- CN203627887U CN203627887U CN201320660265.5U CN201320660265U CN203627887U CN 203627887 U CN203627887 U CN 203627887U CN 201320660265 U CN201320660265 U CN 201320660265U CN 203627887 U CN203627887 U CN 203627887U
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- Prior art keywords
- valve
- ring
- spring
- valve seat
- pressure ring
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- Expired - Lifetime
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- 239000000428 dust Substances 0.000 claims description 27
- 238000010276 construction Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 abstract description 10
- 239000003245 coal Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a valve base spring dust-proof structure for a ball valve. The valve base spring dust-proof structure for the ball valve comprises a valve body, a ball body, a valve base, a valve base sealing ring, a valve base pressing ring and springs. The ball body is installed inside the valve body in a rotating mode. The valve base is installed between the ball body and the valve body. A sealing boss coaxial with the valve base is manufactured on the valve base and makes contact with the ball body. The valve base pressing ring is coaxially installed between the valve base and the valve body in a pressing mode. The valve base sealing ring is coaxially installed between the axial contact faces of the valve base pressing ring and the valve base. Spring blind holes are formed in the end face, making axial contact with the valve body, of the valve base pressing ring. The springs are installed inside the spring blind holes in a pressing mode. A plurality of spring blind holes and the springs are evenly distributed in the radial direction. A dust-proof device is installed between the springs and the valve body. The valve base spring dust-proof structure is scientific in design and simple, and has the good dust-proof function, media are prevented from corroding the springs, the service life of the valve base and the springs of the ball valve is greatly prolonged, the service life of the valve is prolonged, and the valve base spring dust-proof structure can be widely applicable to various coal chemical industry devices.
Description
Technical field
The invention belongs to valve field, relate to ball valve, especially a kind of seating spring dustproof construction of ball valve.
Background technique
At present, general ball-valve structure comprises valve body, valve seat, spheroid, valve seat pressure ring and spring, in valve body, be rotatablely equipped with spheroid, between spheroid and valve body, valve seat is installed, between valve seat and valve body, be coaxially pressed with a valve seat pressure ring, between this valve seat pressure ring and valve body, be pressed with spring, the pretightening force of spring makes the gap between pressure ring compensation valve seat and spheroid, guarantees the sealing of spheroid and valve seat.But present spring lacks dustproof construction, cause the medium can be easily and spring contact, after long-term use, spring is by dielectric corrosion, and the effect that follows the string, causes valve leak, has reduced life of valve.
Above-mentioned existing valve seat construction and present patent application structurally have larger difference.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, the seating spring dustproof construction of the ball valve of a kind of simple in structure, reasonable in design, good airproof performance, long service life is provided.
The present invention solves its technical problem and takes following technological scheme to realize:
A seating spring dustproof construction for ball valve, comprises valve body, spheroid, valve seat, valve seat insert, valve seat pressure ring and spring, is rotatablely equipped with spheroid in valve body, between spheroid and valve body, valve seat is installed, and valve seat is shaped with coaxial seal boss and contacts with spheroid, between valve seat and valve body, be coaxially pressed with a valve seat pressure ring, between this valve seat pressure ring and the axial surface of contact of valve seat, be coaxially installed with a valve seat insert, on the valve seat pressure ring end face axially contacting with valve body, be shaped with spring blind hole, in this spring blind hole, be pressed with spring, described spring blind hole and spring are the multiple of radial equipartition setting, it is characterized in that: between described spring and valve body, dust guard is installed, this dust guard comprises upper press ring, lower pressure ring, outer dust ring, interior dust ring, spring top is pressed on an axial sidewall of upper press ring, between spring and valve body, coaxial order is provided with upper press ring and lower pressure ring, upper press ring adopts the coaxial relative snapping of tongue and groove structure with lower pressure ring, and be coaxially installed with dust ring between upper press ring and lower pressure ring.
And, described upper press ring middle part is shaped with a co-axial grooves, lower pressure ring middle part is shaped with together crown of roll rib, described co-axial grooves setting-in relative to coaxial fin coordinates, be coaxially installed with an outer dust ring in upper press ring and the coaxial fin outside between lower pressure ring, the fin inner side between upper press ring and lower pressure ring is coaxially installed with an interior dust ring.
And, between described valve seat pressure ring and valve seat, between valve seat pressure ring and upper press ring, all leave gap between upper press ring and lower pressure ring.
Advantage of the present invention and good effect are:
1, a kind of seating spring dustproof construction of ball valve, comprise valve body, spheroid, valve seat, spring, valve seat insert, valve seat pressure ring, upper press ring, outer dust ring, interior dust ring, lower pressure ring, valve seat insert, valve seat pressure ring, upper press ring, outer dust ring, interior dust ring, lower pressure ring are coaxially arranged on valve seat, in the spring eye of valve seat pressure ring, spring are housed.There is seal ring sealing at the two ends of spring, thereby make medium and spring isolation, have increased spring life.
2, seating spring dustproof construction design science of the present invention, simple in structure, has good dust reduction capability, prevents dielectric corrosion, greatly increased the life-span of ball seat spring, increased the life time of valve, is widely used in multiple coal chemical engineering equipment.
Accompanying drawing explanation
Fig. 1 is broken section structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of seating spring dustproof construction of ball valve, comprise valve body 2, spheroid 1, valve seat 4, valve seat insert 3, valve seat pressure ring 5 and spring 6, in valve body, be rotatablely equipped with spheroid, between spheroid and valve body, valve seat be installed, valve seat is shaped with coaxial seal boss 11 and contacts with spheroid; Between valve seat and valve body, be coaxially pressed with a valve seat pressure ring, between this valve seat pressure ring and the axial surface of contact of valve seat, be coaxially installed with a valve seat insert, on the valve seat pressure ring end face axially contacting with valve body, be shaped with spring blind hole, in this spring blind hole, be pressed with spring, the sealing that spring provides pretightening force to keep valve seat and spheroid, described spring blind hole and spring are the multiple of radial equipartition setting.
Innovative point of the present invention is:
Between described spring and valve body, dust guard is installed, this dust guard comprises upper press ring 7, lower pressure ring 9, outer dust ring 8, interior dust ring 10, spring top is pressed on an axial sidewall of upper press ring, between spring and valve body, coaxial order is provided with upper press ring and lower pressure ring, upper press ring adopts the coaxial relative snapping of tongue and groove structure with lower pressure ring, and is coaxially installed with multiple dust rings between upper press ring and lower pressure ring.The present embodiment accompanying drawing is depicted as upper press ring middle part and is shaped with a co-axial grooves, and lower pressure ring middle part is shaped with together crown of roll rib, and described co-axial grooves setting-in relative to coaxial fin coordinates, and leaves a compensate for clearance between upper press ring and lower pressure ring; Be coaxially installed with an outer dust ring in upper press ring and the coaxial fin outside between lower pressure ring, the fin inner side between upper press ring and lower pressure ring is coaxially installed with an interior dust ring.
Between described valve seat pressure ring and valve seat, between valve seat pressure ring and upper press ring, all leave gap between upper press ring and lower pressure ring, protection valve seat can carry out elastic compensating distortion among a small circle, extends the working life of valve seat.
Working principle of the present invention is:
After installation, spheroid contacts and compresses with valve seat and reaches sealing effect, and spring applies axial pressure to valve seat pressure ring, reaches sealing thereby make valve seat insert and valve body, valve seat be adjacent to and be squeezed; Meanwhile, spring is exerted pressure to upper press ring, and exterior seal ring and valve body are adjacent to, and inner seal ring and valve seat are adjacent to, and reach dust sealing.
Thereby realize the sealing of both ends of the spring, made medium and spring isolation, prevented that dielectric corrosion from damaging spring, increased spring life, strengthened the working life of valve entirety, lift-off seal reliability.
Claims (3)
1. the seating spring dustproof construction of a ball valve, comprise valve body, spheroid, valve seat, valve seat insert, valve seat pressure ring and spring, in valve body, be rotatablely equipped with spheroid, between spheroid and valve body, valve seat be installed, valve seat is shaped with coaxial seal boss and contacts with spheroid, between valve seat and valve body, be coaxially pressed with a valve seat pressure ring, between this valve seat pressure ring and the axial surface of contact of valve seat, be coaxially installed with a valve seat insert, on the valve seat pressure ring end face axially contacting with valve body, be shaped with spring blind hole, in this spring blind hole, be pressed with spring, described spring blind hole and spring are the multiple of radial equipartition setting, it is characterized in that: between described spring and valve body, dust guard is installed, this dust guard comprises upper press ring, lower pressure ring, outer dust ring, interior dust ring, spring top is pressed on an axial sidewall of upper press ring, between spring and valve body, coaxial order is provided with upper press ring and lower pressure ring, upper press ring adopts the coaxial relative snapping of tongue and groove structure with lower pressure ring, and be coaxially installed with dust ring between upper press ring and lower pressure ring.
2. the seating spring dustproof construction of ball valve according to claim 1, it is characterized in that: described upper press ring middle part is shaped with a co-axial grooves, lower pressure ring middle part is shaped with together crown of roll rib, described co-axial grooves setting-in relative to coaxial fin coordinates, be coaxially installed with an outer dust ring in upper press ring and the coaxial fin outside between lower pressure ring, the fin inner side between upper press ring and lower pressure ring is coaxially installed with an interior dust ring.
3. the seating spring dustproof construction of ball valve according to claim 1, is characterized in that: between described valve seat pressure ring and valve seat, between valve seat pressure ring and upper press ring, all leave gap between upper press ring and lower pressure ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660265.5U CN203627887U (en) | 2013-10-24 | 2013-10-24 | Valve base spring dust-proof structure for ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660265.5U CN203627887U (en) | 2013-10-24 | 2013-10-24 | Valve base spring dust-proof structure for ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627887U true CN203627887U (en) | 2014-06-04 |
Family
ID=50814368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320660265.5U Expired - Lifetime CN203627887U (en) | 2013-10-24 | 2013-10-24 | Valve base spring dust-proof structure for ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440022A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of dual-seal high temperature and pressure elastic ball valve valve seat construction |
-
2013
- 2013-10-24 CN CN201320660265.5U patent/CN203627887U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440022A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of dual-seal high temperature and pressure elastic ball valve valve seat construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |