CN205423918U - Bolt manner fixes ball valve seating structure - Google Patents
Bolt manner fixes ball valve seating structure Download PDFInfo
- Publication number
- CN205423918U CN205423918U CN201620198177.1U CN201620198177U CN205423918U CN 205423918 U CN205423918 U CN 205423918U CN 201620198177 U CN201620198177 U CN 201620198177U CN 205423918 U CN205423918 U CN 205423918U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- bolt
- disk seat
- valve body
- conical surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a bolt manner fixes ball valve seating structure, including the disk seat of assembly in the valve body, the disk seat is close to spheroidal terminal surface and ball sealing laminating, the disk seat with valve body sliding seal connects, the disk seat is kept away from spheroidal tip and is adopted conical surface structure, be equipped with the bolt rather than threaded connection on the valve body, conical surface structure is adopted to the bottom of bolt, and bolt bottom conical surface structure compresses tightly at the disk seat conical surface structurally identically. The utility model discloses an adoption is kept away from spheroidal tip at the disk seat and is set up clamp bolt to make the two form the conical surface and compress tightly propulsive structure, make disk seat and the inseparable degree of spheroidal laminating adjustable, can solve disk seat and spheroid laminating clearance leakage and the not enough problem of sealed specific pressure, simultaneously the utility model discloses still have simple structure, convenient assembling, advantage that sealing performance is good, longe -lived.
Description
Technical field
This utility model belongs to valve field, especially relates to the bolt type valve seat of fixed ball valve structure that a kind of reliability is high.
Background technology
The design of valve is typically to arrange spring in the behind of valve seat, makes valve seat be adjacent to spheroid by the pressure medium in the pretightning force of spring and pipeline, thus reaches the purpose of sealing.Design can be calculated by valve seat and the necessary seal pressure of spheroid the pretightning force size of spring, valve seat can be made in theory to fit tightly spheroid and obtain enough seal pressures.But in reality, owing to the reason such as quality of manufacture, rigging error and the spring of valve seat is likely to result in valve seat and spheroid laminating closely and the problem such as seal pressure is not enough, thus cause valve to there is leakage in actual applications.
Summary of the invention
This utility model provides a kind of bolt type valve seat of fixed ball valve structure for solving technical problem present in known technology, this structure can make spheroid fit tightly with valve seat, the actual seal pressure that can make fixing ball valve is reasonable, and simple in construction, easy to assembly, seal reliable.
This utility model is adopted the technical scheme that by solving technical problem present in known technology: one bolt type valve seat of fixed ball valve structure, including the valve seat being assemblied in valve body, described valve seat is fitted with ball seal near the end face of spheroid, described valve seat is tightly connected with described valve body slides, and described valve seat uses cone structure away from the end of spheroid；Being provided with the bolt threadeded with it on described valve body, the bottom of described bolt uses cone structure, and stud base's cone structure is pressed on valve seat cone structure in consistent manner.
The cone angle of described stud base's cone structure is 12 °～24 °.
The outer surface of described bolt and described valve body is by full solder design.
Described bolt has symmetrically arranged two, and two described bolts are arranged along the same diametric(al) of described valve seat.
It is provided with sealing ring between described valve seat and described valve body.
Described sealing ring is arranged in seal groove, and described seal groove is arranged on described valve seat, is respectively provided with a back-up ring in the both sides of described sealing ring, and described back-up ring is arranged in described seal groove.
This utility model has the advantage that with good effect: arrange hold-down bolt at valve seat away from the end of spheroid by using, and make the two form the structure that conical surface compression advances, make valve seat adjustable with the laminating tightness degree of spheroid, can solve the problem that valve seat and the problem that spheroid laminating is not tight and seal pressure is not enough, this utility model also has simple in construction, easy to assembly, good seal performance, the advantage of life-span length simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model application；
Fig. 2 is the enlarged drawing on Fig. 1 top；
Fig. 3 is bolt arrangement schematic diagram of the present utility model.
In figure: 1, valve body；2, bolt；3, Sealing shield ring；4, sealing ring；5, valve seat；6, spheroid；7, full weld seam.
Detailed description of the invention
For summary of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
Refer to Fig. 1～Fig. 3, a kind of bolt type valve seat of fixed ball valve structure, including the valve seat 5 being assemblied in valve body 1, described valve seat 5 seals laminating near the end face of spheroid with spheroid 6, described valve seat 5 is connected with the slipper seal of described valve body 6, and described valve seat 5 uses cone structure away from the end of spheroid；Being provided with the bolt 2 threadeded with it on described valve body 1, the bottom of described bolt 2 uses cone structure, and stud base's cone structure is pressed on valve seat cone structure in consistent manner.When the bolts are tightened, stud base's cone structure compresses valve seat cone structure, makes valve seat obtain the power to spheroid direction, and valve seat is fitted and presses spheroid, and regulation bolt can make to obtain between valve seat and spheroid rational seal pressure.
In the present embodiment, the cone angle of described stud base's cone structure is 12 °～24 °, bolt and valve seat end thereof contacts, energy self-locking after tighting a bolt, and cone angle can make bolt entire length less in this range, it is possible to increase the rigidity of bolt.Described bolt 2 is connected by full weld seam 7 with the outer surface of described valve body 1, and full weld seam 7 can not exist the defect such as pore, crackle, to ensure to seal.Full weld seam 7 can make bolt 2 be sealedly connected on valve body 1.Described bolt 2 has symmetrically arranged two, and two described bolts 2 are arranged along the same diametric(al) of described valve seat 5.Regulate two bolts, valve seat 5 can be made by thrust two lateral balance to spheroid direction, it is possible to avoid between valve seat 5 and valve body 1 stuck, produce the problem that valve seat is more not enough than pressure with ball seal face seal.It is provided with sealing ring 4 between described valve seat 5 and described valve body 1.Described sealing ring 4 is arranged in seal groove, and described seal groove is arranged on described valve seat 5, is respectively provided with a back-up ring 3 in the both sides of described sealing ring 4, and described back-up ring 3 is arranged in described seal groove.When tight a bolt 2 make valve seat 5 move to spheroid 6 and press time, the existence of back-up ring 3 can make sealing ring be not easy deformation, it is possible to increase sealing reliability.
During assembling, first two bolts assemblies being entered valve body, one end of bolt slightly the most i.e. stops beyond valve inner tightening.By sealing ring and both sides back-up ring fit on valve seat thereof, then valve seat is fitted into valve body, makes the cone structure of valve seat and the cone structure laminating of stud base.Treat that valve assembling is complete, slowly tighten two bolts simultaneously, make valve seat fit with spheroid.
During delivery test, regulate the tightness of two bolts simultaneously, terminate to valve No leakage.Again by bolt and valve outer surface joint surrounding full weld, detection full weld stitches whether existing defects, such as nothing, then and can factory inspection and acceptance.
Although preferred embodiment of the present utility model being described above in conjunction with accompanying drawing; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematically; it is not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the case of without departing from this utility model objective and scope of the claimed protection, it is also possible to make a lot of form, within these belong to protection domain of the present utility model.
Claims (6)
1. a bolt type valve seat of fixed ball valve structure, including the valve seat being assemblied in valve body, described valve seat is fitted with ball seal near the end face of spheroid, it is characterised in that, described valve seat is tightly connected with described valve body slides, and described valve seat uses cone structure away from the end of spheroid；Being provided with the bolt threadeded with it on described valve body, the bottom of described bolt uses cone structure, and stud base's cone structure is pressed on valve seat cone structure in consistent manner.
Bolt type valve seat of fixed ball valve structure the most according to claim 1, it is characterised in that the cone angle of described stud base's cone structure is 12 °～24 °.
Bolt type valve seat of fixed ball valve structure the most according to claim 1, it is characterised in that the outer surface of described bolt and described valve body is by full solder design.
Bolt type valve seat of fixed ball valve structure the most according to claim 1, it is characterised in that described bolt has symmetrically arranged two, two described bolts are arranged along the same diametric(al) of described valve seat.
Bolt type valve seat of fixed ball valve structure the most according to claim 1, it is characterised in that be provided with sealing ring between described valve seat and described valve body.
Bolt type valve seat of fixed ball valve structure the most according to claim 5, it is characterized in that, described sealing ring is arranged in seal groove, and described seal groove is arranged on described valve seat, be respectively provided with a back-up ring in the both sides of described sealing ring, described back-up ring is arranged in described seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620198177.1U CN205423918U (en) | 2016-03-15 | 2016-03-15 | Bolt manner fixes ball valve seating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620198177.1U CN205423918U (en) | 2016-03-15 | 2016-03-15 | Bolt manner fixes ball valve seating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423918U true CN205423918U (en) | 2016-08-03 |
Family
ID=56545810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620198177.1U Expired - Fee Related CN205423918U (en) | 2016-03-15 | 2016-03-15 | Bolt manner fixes ball valve seating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587888A (en) * | 2016-03-15 | 2016-05-18 | 天津大学 | Valve seat structure of fixed ball valve |
-
2016
- 2016-03-15 CN CN201620198177.1U patent/CN205423918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587888A (en) * | 2016-03-15 | 2016-05-18 | 天津大学 | Valve seat structure of fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20180315 |