CN206072407U - Blowout-prevention plug valve in a kind of oil pipe - Google Patents
Blowout-prevention plug valve in a kind of oil pipe Download PDFInfo
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- CN206072407U CN206072407U CN201620993852.XU CN201620993852U CN206072407U CN 206072407 U CN206072407 U CN 206072407U CN 201620993852 U CN201620993852 U CN 201620993852U CN 206072407 U CN206072407 U CN 206072407U
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Abstract
This utility model is related to blowout-prevention plug valve in a kind of oil pipe, and the top connection is arranged in valve body one end；Ball valve is provided with the body cavity；The upper end of the ball valve is connected with spanner by steering block；The upper valve base and lower valve base positioned at ball valve both sides is provided with the valve body, and upper valve base and lower valve base and ball valve are mating spherical surfaces；Cannelure is provided with the contact surface of ball valve on the upper valve base and lower valve base；Composite sealing ring is provided with the cannelure；Wavy spring is provided with the right side of the lower valve base and valve body between；Ring washer is additionally provided with the left of the upper valve base, and upper ring washer is arranged in valve body by hole back-up ring, blowout-prevention plug valve in oil pipe of the present utility model, make between lower valve base and ball valve, to remain sealing by the elastic force of wavy spring, two pressure ports be increased in the left and top of ball valve simultaneously, switch torque, compact overall structure, wear-resistant and good seal performance is reduced, long service life, with preferable practicality.
Description
Technical field
This utility model is related to a kind of plug valve, more particularly to a kind of oil pipe plug valve.
Background technology
Plug valve is the rotary valve of closure member or plunger shape, is made on passway on valve plug and valve body by being rotated by 90 °
Passway communicates or separates, and realizes a kind of valve being turned on and off.
Existing plug valve is mainly made up of parts such as ball valve, upper valve base, lower valve base, top connection and steering blocks, but
It is to find after long-term use to there are some shortcomings, is hard sealing first between ball valve and upper valve base, lower valve base, seals
Performance determines that according to the gap length for adjusting the left side top connection Jing use abrasions after a while, will also enter after mixing up every time
The appropriate regulation of row, otherwise will seepage；Secondly, ball valve surface and upper and lower sealing surface of seat are all martensitic stain less steel sheets
Surfacing Ni60 alloys on body, because ball valve Geometrical Tolerance Principle is higher, sealing surface roughness will reach Ra0.4, and sealing surface
The alloy of surfacing is harder, so difficulty of processing is than larger, it is difficult to ensure that precision increased production cost again；3rd, top connection,
Sealing between valve body, upper lower valve base and steering block is sealed using 0 shape circle, and such sealing effectiveness is poor, makes for a long time
With rear easy seepage, inconvenience is brought to actual use.
Utility model content
This utility model purpose is to provide a kind of compact conformation to overcome the deficiencies in the prior art, wear-resistant, sealing
Performance is good and opens blowout-prevention plug valve in the oil pipe of labour-saving.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：Blowout-prevention plug valve in a kind of oil pipe, bag
Include top connection, valve body, ball valve, steering block, spanner, upper valve base, lower valve base, composite sealing ring, wavy spring, upper ring washer and
Hole back-up ring；The top connection is arranged in valve body one end；Ball valve is provided with the body cavity；The ball valve
Upper end be connected with spanner by steering block；The upper valve base and lower valve base positioned at ball valve both sides is provided with the valve body, and
Upper valve base and lower valve base and ball valve are mating spherical surfaces；On the upper valve base and lower valve base with open on the contact surface of ball valve
There is cannelure；Composite sealing ring is provided with the cannelure；Wavy spring is provided with the right side of the lower valve base and valve body between；It is described
Ring washer is additionally provided with the left of upper valve base, and upper ring washer is arranged in valve body by hole back-up ring.
Preferably, the left and top in cock spheroid is provided with pressure port；A diameter of 3mm of the pressure port.
Preferably, the first O-ring seal is provided between the upper valve base and valve body；The first O-ring seal both sides set
There is the first gasket seal；The second O-ring seal is provided between the lower valve base and valve body；The second O-ring seal both sides set
There is the second gasket seal.
Preferably, the 3rd O-ring seal is provided between the top connection and valve body；Set on the right side of 3rd O-ring seal
There is right gasket seal.
Preferably, the 4th O-ring seal is provided between the steering block and valve body；Set above 4th O-ring seal
There is upper gasket seal.
Preferably, first gasket seal, the second gasket seal, right gasket seal and upper gasket seal are band R grooves
Gasket seal.
Preferably, lining ring is provided with the upper ring washer.
Due to the utilization of above-mentioned technical proposal, this utility model has following advantages compared with prior art：This practicality is new
The oil pipe plug valve of type scheme, makes sealing is remained between lower valve base and ball valve by the elastic force of wavy spring, while
Two pressure ports be increased in the left and top of ball valve, switch torque is reduced, it is compact overall structure, wear-resistant and close
Sealing property is good, long service life, with preferable practicality, meets the demand for using.
Description of the drawings
Below in conjunction with the accompanying drawings technical solutions of the utility model are described further.
Accompanying drawing 1 is structural representation of the present utility model.
Partial enlarged drawing of the accompanying drawing 2 for accompanying drawing 1.
Partial enlarged drawing of the accompanying drawing 3 for accompanying drawing 1.
Front view of the accompanying drawing 4 for ball valve.
Side view of the accompanying drawing 5 for accompanying drawing 4.
Top view of the accompanying drawing 6 for accompanying drawing 4.
Wherein：1st, top connection；2nd, valve body；3rd, ball valve；4th, steering block；5th, spanner；6th, upper valve base；7th, lower valve base；8、
Composite sealing ring；9th, wavy spring；10th, upper ring washer；11st, hole back-up ring；12nd, the first O-ring seal；13rd, the first gasket seal；
14th, the second O-ring seal；15th, the second gasket seal；16th, the 3rd O-ring seal；17th, the 4th O-ring seal；18th, right sealing
Pad；19th, upper gasket seal；20th, lining ring；21st, pressure port.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Blowout-prevention plug valve in described in the utility model a kind of oil pipe as illustrated in the accompanying drawings from 1 to 3, including top connection 1,
Valve body 2, ball valve 3, steering block 4, spanner 5, upper valve base 6, lower valve base 7, composite sealing ring 8, wavy spring 9, upper ring washer 10
With hole back-up ring 11；The top connection 1 is arranged in 2 one end of valve body；Ball valve 3 is provided with 2 inner chamber of the valve body；It is described
The upper end of ball valve 3 is connected with spanner 5 by steering block 4；The upper valve positioned at 3 both sides of ball valve is provided with the valve body 2
Seat 6 and lower valve base 7, and upper valve base 6 and lower valve base 7 and ball valve 3 are mating spherical surfaces；On the upper valve base 6 and lower valve base 7 with
Cannelure is provided with the contact surface of ball valve 3；Composite sealing ring 8 is provided with the cannelure；On the right side of the lower valve base 7 and valve
Wavy spring 9 is provided between body 2；Ring washer 10 is additionally provided with the left of the upper valve base 6, and upper ring washer 10 is set by hole back-up ring 11
Put in valve body 2；The left and top of the ball valve 3 is provided with pressure port 21；A diameter of 3mm of the pressure port 21；Institute
State and between upper valve base 6 and valve body 2, be provided with the first O-ring seal 12；First O-ring seal, 12 both sides are provided with the first sealing gasket
Piece 13；The second O-ring seal 14 is provided between the lower valve base 7 and valve body 2；Second O-ring seal, 14 both sides are provided with
Two gasket seals 15；The 3rd O-ring seal 16 is provided between the top connection 1 and valve body 2；3rd O-ring seal 16 is right
Side is provided with right gasket seal 18；The 4th O-ring seal 17 is provided between the steering block and valve body；4th O-ring seal
Gasket seal 19 is provided with above in the of 17；First gasket seal 13, the second gasket seal 15, right gasket seal 18 and upper sealing
Pad 19 is the gasket seal with R grooves；Lining ring 20 is provided with the upper back-up ring 10.
Blowout-prevention plug valve in oil pipe of the present utility model, increased back-up ring on the left of upper valve base, limits upper valve
Seat is moved to the left side, serves the effect of positioning, and upper back-up ring is arranged in valve body by hole back-up ring, and upper inner retainer sets
There is lining ring, mainly play a part of sealing；A wavy spring is added between the right side of lower valve base and valve body simultaneously, in reality
In use, can make between lower valve base and ball valve, to remain sealing by the elastic force of wavy spring, change and leaned on originally
The cumbersome method in top connection gap is adjusted, so as to improve overall sealing.
A cannelure has been cut on the sealing surface of upper valve base, lower valve base and ball valve respectively, by ready-made compound seal
Circle is pressed in the cannelure of valve seat, and so as to be processed into sealing surface, wherein composite sealing ring has high rigidity, high intensity and wear-resisting
Property, using this sealing surface, good seal performance, wear-resistant, easy processing and interchangeability is strong.
Further, in the first O-ring seal and the both sides of the second O-ring seal, and a left side for the 3rd O-ring seal
Side, is provided with the gasket seal with R grooves above the 4th O-ring seal, so as to ensure that sealing property is durable in use, uses
Life-span length.
Ball valve as shown in figures 5-6, increased two pressure ports, pressure port in the left and top of ball valve
A diameter of 3mm or so, so when ball valve is closed, play a part of to balance pressure differential, so as to alleviate
Switch torque.
Blowout-prevention plug valve in oil pipe of the present utility model, is made between lower valve base and ball valve by the elastic force of wavy spring
Sealing is remained, while two pressure ports are increased in the left and top of ball valve, reduces switch torque, it is overall to tie
Structure is compact, wear-resistant and good seal performance, long service life, with preferable practicality, meets the demand for using.
The above is only concrete application example of the present utility model, any limit is not constituted to protection domain of the present utility model
System.All employing equivalents or equivalence replacement and the technical scheme that formed, all fall within this utility model rights protection scope it
It is interior.
Claims (7)
1. blowout-prevention plug valve in a kind of oil pipe, it is characterised in that：Including top connection, valve body, ball valve, steering block, pull
Handss, upper valve base, lower valve base, composite sealing ring, wavy spring, upper ring washer and hole back-up ring；The top connection is arranged on valve body one
In end；Ball valve is provided with the body cavity；The upper end of the ball valve is connected with spanner by steering block；It is described
The upper valve base and lower valve base positioned at ball valve both sides is provided with valve body, and upper valve base and lower valve base are matched somebody with somebody for sphere with ball valve
Close；Cannelure is provided with the contact surface of ball valve on the upper valve base and lower valve base；It is provided with compound close in the cannelure
Seal；Wavy spring is provided with the right side of the lower valve base and valve body between；Ring washer, and upper ring washer are additionally provided with the left of the upper valve base
It is arranged in valve body by hole back-up ring.
2. blowout-prevention plug valve in oil pipe according to claim 1, it is characterised in that：The left of the cock spheroid and
Top is provided with pressure port；A diameter of 3mm of the pressure port.
3. blowout-prevention plug valve in oil pipe according to claim 1 and 2, it is characterised in that：The upper valve base and valve body
Between be provided with the first O-ring seal；The first O-ring seal both sides are provided with the first gasket seal；The lower valve base and valve body
Between be provided with the second O-ring seal；The second O-ring seal both sides are provided with the second gasket seal.
4. blowout-prevention plug valve in oil pipe according to claim 3, it is characterised in that：Between the top connection and valve body
It is provided with the 3rd O-ring seal；Right gasket seal is provided with the right side of 3rd O-ring seal.
5. blowout-prevention plug valve in oil pipe according to claim 4, it is characterised in that：Between the steering block and valve body
It is provided with the 4th O-ring seal；Gasket seal is provided with above 4th O-ring seal.
6. blowout-prevention plug valve in oil pipe according to claim 5, it is characterised in that：First gasket seal,
Two gasket seals, right gasket seal and upper gasket seal are the gasket seal with R grooves.
7. blowout-prevention plug valve in oil pipe according to claim 1, it is characterised in that：Lining is provided with the upper ring washer
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993852.XU CN206072407U (en) | 2016-08-31 | 2016-08-31 | Blowout-prevention plug valve in a kind of oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993852.XU CN206072407U (en) | 2016-08-31 | 2016-08-31 | Blowout-prevention plug valve in a kind of oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206072407U true CN206072407U (en) | 2017-04-05 |
Family
ID=58434297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620993852.XU Active CN206072407U (en) | 2016-08-31 | 2016-08-31 | Blowout-prevention plug valve in a kind of oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206072407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906242A (en) * | 2017-11-06 | 2018-04-13 | 肇庆市大旺大庆炉具制品企业有限公司 | A kind of anti-dropout valve body |
-
2016
- 2016-08-31 CN CN201620993852.XU patent/CN206072407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906242A (en) * | 2017-11-06 | 2018-04-13 | 肇庆市大旺大庆炉具制品企业有限公司 | A kind of anti-dropout valve body |
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