CN207261799U - A kind of fixing ball valve of valve-stem popping preventive - Google Patents
A kind of fixing ball valve of valve-stem popping preventive Download PDFInfo
- Publication number
- CN207261799U CN207261799U CN201721054837.XU CN201721054837U CN207261799U CN 207261799 U CN207261799 U CN 207261799U CN 201721054837 U CN201721054837 U CN 201721054837U CN 207261799 U CN207261799 U CN 207261799U
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- CN
- China
- Prior art keywords
- valve
- stuffing
- box
- valve deck
- shoulder
- 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 provides a kind of fixing ball valve of valve-stem popping preventive,More particularly to ball valve technical field,Including valve rod,Driving device,Push up flange,Stuffing-box,Valve deck,Sphere and valve body,Driving device,Push up flange,Stuffing-box,Valve deck and sphere are sequentially distributed from top to down,It is arranged at intervals between valve deck and sphere,Push up flange,Positioning pin is additionally provided between stuffing-box and valve deck,Positioning pin passes through top flange and stuffing-box,Positioning pin end is located in valve deck,Stem lower portion is equipped with and its integrally formed shoulder,Valve deck is located at the periphery of shoulder,Stuffing-box is located at shoulder top,Valve deck inner wall at shoulder upper contact with being equipped with the 3rd annular groove,Pendant collet is arranged in the 3rd annular groove,Pendant collet is equipped with arc groove,Circlip for shaft is equipped with arc groove,Stuffing-box is set in pendant collet top,Stuffing-box is in contact with circlip for shaft.The utility model has the advantages that valve rod does not also fly out after pushing up flange and stuffing-box dismounting.
Description
Technical field
The utility model belongs to ball valve technical field, and in particular to a kind of fixing ball valve of valve-stem popping preventive.
Background technology
The torque of fixing ball valve is small, and valve seat deformation is small, and sealing performance is stablized, service life length, at present, most fixation
The anti-blow sealing structure of ball valve is all to be attached fixation using bolt, and the pressure that bolt is born is big, spiral shell during long-time service
Bolt easily loosens, and valve rod, which may fly out, to be come, and there are security risk, and is not easy to safeguard.
Anti-blow structure (the publication number of valve rod of patent fixing ball valve：CN202280932U), which discloses one
The anti-blow structure of valve rod of kind fixing ball valve, including valve body, valve rod, gland, stuffing box, support convex shoulder, positioning pin and bolt, pressure
Lid and valve body by positioning finger setting and coaxially connected by bolt, in gland and valve body coaxial operation have valve rod, in gland
Stuffing box is filled with gap between the valve rod and valve body of lower section, stuffing box lower end top is mounted in the made support convex shoulder of valve rod
On, it is characterised in that：Valve interior wall in valve body inner valve body and gland joint is formed with an annular groove, coaxially pacifies in the annular groove
Equipped with a pendant collet, in gland lower end, outer rim is formed with the annular groove coordinated with pendant collet.The utility model service life is long, knot
Structure is simple, safe and reliable, easy for installation, easy to maintain, and pendant collet is protected from valve rod blowout with bolt shape into dual, and conveniently
Safeguard, effectively eliminate security risk, ensure pipeline normal work, if but valve rod after the utility model stuffing box and gland dismounting
It can fly out.
Therefore, it is badly in need of the fixing ball valve of the valve-stem popping preventive that valve rod does not also fly out after a kind of top flange and stuffing-box are removed.
Utility model content
In order to solve the problems, such as that existing ball-valve valve rod flies out there may be security risk, the purpose of this utility model is to carry
For a kind of fixing ball valve of valve-stem popping preventive, have the advantages that valve rod does not also fly out after pushing up flange and stuffing-box dismounting.
The utility model provides following technical solution：
A kind of fixing ball valve of valve-stem popping preventive, including valve rod, driving device, top flange, stuffing-box, valve deck, sphere and
Valve body, the driving device, top flange, the stuffing-box, the valve deck and the sphere are sequentially distributed from top to down, institute
State and be arranged at intervals between valve deck and the sphere, the top flange is bolted with the driving device, the stuffing-box and institute
State valve deck to be bolted, be additionally provided with positioning pin between the top flange, the stuffing-box and the valve deck, the positioning pin passes through
The top flange and the stuffing-box, the positioning pin end are located in the valve deck, spiral shell between the valve deck and the valve body
Tether and connect, the stem lower portion is equipped with is located at the periphery of the shoulder, the filler with its integrally formed shoulder, the valve deck
Letter is located at the shoulder top, and with being equipped with the 3rd annular groove at the shoulder upper contact, pendant collet is set the valve deck inner wall
Put in the 3rd annular groove, the pendant collet is equipped with arc groove, and be equipped with axis in the arc groove is kept off with elasticity
Circle, the stuffing-box are set in the pendant collet top, and the stuffing-box is in contact with the circlip for shaft.
After the stuffing-box and the top flange are removed, the valve deck is fixedly connected with the valve body, the pendant collet
In the valve deck, it is stuck at the shoulder, prevents the valve rod from flying out.
Preferably, the valve deck inner wall is equipped with fourth annular groove, the shoulder outer wall with the shoulder outer wall contact position
Fixed block is fixed with circumferential direction, the fixed block is located in the fourth annular groove.The setting of the fixed block can be into one
Step prevents the valve rod from flying out.
Preferably, the stuffing-box inner wall is equipped with bearing, and the bearing is fixed on the stuffing-box, the stuffing-box bottom
Portion is additionally provided with thrust washer, and the thrust washer is arranged between the shoulder and the stuffing-box.
Preferably, stuffing box gasket is additionally provided between the stuffing-box and the valve deck, the stuffing box gasket is located at institute
State valve deck top and the stuffing-box contact position.
Preferably, the inner wall of the stuffing-box and the valve stem contacts is equipped with first annular groove, the stuffing-box and
The outer wall of the valve deck contact is equipped with second annular groove, is all provided with the first annular groove and the second annular groove
There is O-ring.
The beneficial effects of the utility model are：After stuffing-box and top flange are removed, valve deck is fixedly connected with valve body, and four open
Ring is located in valve deck, is stuck at shoulder, prevents valve rod from flying out；The setting of fixed block further can prevent valve rod from flying out.
Brief description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form the limitation to the utility model.In the accompanying drawings：
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model partial enlarged view；
In figure mark for：1st, valve rod；11st, shoulder；111st, fixed block；2nd, driving device；3rd, flange is pushed up；4th, stuffing-box；41、
Bearing；42nd, thrust washer；43rd, stuffing box gasket；44th, first annular groove；45th, second annular groove；46th, O-ring；5th, four
Open loop；51st, arc groove；52nd, circlip for shaft；6th, valve deck；61st, the 3rd annular groove；62nd, fourth annular groove；7th, ball
Body；8th, positioning pin；9th, valve body.
Embodiment
Specific embodiment of the present utility model is described below in conjunction with the accompanying drawings.
As shown in Figs. 1-2, a kind of fixing ball valve of valve-stem popping preventive, including valve rod 1, driving device 2, top flange 3, filler
Letter 4, valve deck 6, sphere 7 and valve body 9, driving device 2, top flange 3, stuffing-box 4, valve deck 6 and sphere 7 divide successively from top to bottom
Cloth, is arranged at intervals between valve deck 6 and sphere 7, and top flange 3 is bolted with driving device 2, and stuffing-box 4 connects with 6 bolt of valve deck
Connect, positioning pin 8 is additionally provided between top flange 3, stuffing-box 4 and valve deck 6, positioning pin 8 passes through top flange 3 and stuffing-box 4, positioning pin
8 ends are located in valve deck 6, are bolted between valve deck 6 and valve body 9,1 lower part of valve rod be equipped with its integrally formed shoulder 11,
Valve deck 6 is located at the periphery of shoulder 11, and stuffing-box 4 is located at 11 top of shoulder, and 6 inner wall of valve deck at 11 upper contact of shoulder with being equipped with
3rd annular groove 61, pendant collet 5 are arranged in the 3rd annular groove 61, and pendant collet 5 is equipped with arc groove 51, and arc is recessed
Circlip for shaft 52 is equipped with groove 51, stuffing-box 4 is set in 5 top of pendant collet, and stuffing-box 4 connects with circlip for shaft 52
Touch.After stuffing-box 4 and top flange 3 are removed, valve deck 6 is fixedly connected with valve body 9, and pendant collet 5 is located in valve deck 6, is stuck in shoulder
At 11, prevent valve rod 1 from flying out.
Specifically, 6 inner wall of valve deck and 11 outer wall contact position of shoulder are equipped with fourth annular groove 62, in 11 outer wall circumferential direction of shoulder
Fixed block 111 is fixed with, fixed block 111 is located in fourth annular groove 62.The setting of fixed block 111 can further prevent valve
Bar 1 flies out.
Specifically, 4 inner wall of stuffing-box is equipped with bearing 41, bearing 41 is fixed on stuffing-box 4, and 4 bottom of stuffing-box is additionally provided with
Thrust washer 42, thrust washer 42 are arranged between shoulder 11 and stuffing-box 4；Stuffing box is additionally provided between stuffing-box 4 and valve deck 6
Gasket 43, stuffing box gasket 43 are located at the top of valve deck 6 and 4 contact position of stuffing-box；Set on the inner wall that stuffing-box 4 is contacted with valve rod 1
There is first annular groove 44, the outer wall that stuffing-box 4 is contacted with valve deck 6 is equipped with second annular groove 45, first annular groove 44
With O-ring 46 is equipped with second annular groove 45.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, although ginseng
The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with
Modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on, should be included in this practicality
Within new protection domain.
Claims (5)
1. a kind of fixing ball valve of valve-stem popping preventive, including valve rod, driving device, top flange, stuffing-box, valve deck, sphere and valve
Body, the driving device, top flange, the stuffing-box, the valve deck and the sphere are sequentially distributed from top to down, described
Be arranged at intervals between valve deck and the sphere, it is described top flange be bolted with the driving device, the stuffing-box with it is described
Valve deck is bolted, and is additionally provided with positioning pin between the top flange, the stuffing-box and the valve deck, the positioning pin passes through institute
State top flange and the stuffing-box, the positioning pin end are located in the valve deck, bolt between the valve deck and the valve body
Connection, the stem lower portion is equipped with is located at the periphery of the shoulder, the stuffing-box with its integrally formed shoulder, the valve deck
Positioned at the shoulder top, it is characterised in that the 3rd annular groove is equipped with the valve deck inner wall and the shoulder upper contact,
Pendant collet is arranged in the 3rd annular groove, and the pendant collet is equipped with arc groove, and axis is equipped with the arc groove
With circlip, the stuffing-box is set in the pendant collet top, and the stuffing-box is in contact with the circlip for shaft.
2. the fixing ball valve of a kind of valve-stem popping preventive according to claim 1, it is characterised in that the valve deck inner wall and institute
State shoulder outer wall contact position and be equipped with fourth annular groove, fixed block, the fixed block position are fixed with the shoulder outer wall circumferential direction
In in the fourth annular groove.
3. the fixing ball valve of a kind of valve-stem popping preventive according to claim 1, it is characterised in that the stuffing-box inner wall is set
There is bearing, the bearing is fixed on the stuffing-box, and the stuffing-box bottom is additionally provided with thrust washer, and the thrust washer is set
It is placed between the shoulder and the stuffing-box.
A kind of 4. fixing ball valve of valve-stem popping preventive according to claim 1, it is characterised in that the stuffing-box and described
Stuffing box gasket is additionally provided between valve deck, the stuffing box gasket is located at the top of the valve deck and the stuffing-box contact position.
A kind of 5. fixing ball valve of valve-stem popping preventive according to claim 1, it is characterised in that the stuffing-box with it is described
The inner wall of valve stem contacts is equipped with first annular groove, and the outer wall that the stuffing-box is contacted with the valve deck is equipped with the second annular
O-ring is equipped with groove, the first annular groove and the second annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054837.XU CN207261799U (en) | 2017-08-22 | 2017-08-22 | A kind of fixing ball valve of valve-stem popping preventive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054837.XU CN207261799U (en) | 2017-08-22 | 2017-08-22 | A kind of fixing ball valve of valve-stem popping preventive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261799U true CN207261799U (en) | 2018-04-20 |
Family
ID=61925813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721054837.XU Expired - Fee Related CN207261799U (en) | 2017-08-22 | 2017-08-22 | A kind of fixing ball valve of valve-stem popping preventive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131439A (en) * | 2019-05-21 | 2019-08-16 | 天津市塘沽第一阀门有限公司 | A kind of anti-blow valve stem equipment of welding ball valve |
| CN112594410A (en) * | 2020-12-16 | 2021-04-02 | 武昌船舶重工集团有限公司 | Top entry valve rod type ball valve |
-
2017
- 2017-08-22 CN CN201721054837.XU patent/CN207261799U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131439A (en) * | 2019-05-21 | 2019-08-16 | 天津市塘沽第一阀门有限公司 | A kind of anti-blow valve stem equipment of welding ball valve |
| CN112594410A (en) * | 2020-12-16 | 2021-04-02 | 武昌船舶重工集团有限公司 | Top entry valve rod type ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20200822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |