CN105805344B - A kind of ball valve - Google Patents
A kind of ball valve Download PDFInfo
- Publication number
- CN105805344B CN105805344B CN201610274541.2A CN201610274541A CN105805344B CN 105805344 B CN105805344 B CN 105805344B CN 201610274541 A CN201610274541 A CN 201610274541A CN 105805344 B CN105805344 B CN 105805344B
- Authority
- CN
- China
- Prior art keywords
- valve
- port
- cap
- card slot
- diameter
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/50—Couplings of the quick-acting type adjustable; allowing movement of the parts joined
Abstract
This technology provides a kind of with simple in structure, simple installation, ball valve of low cost, sealed reliable.It has valve body, and the cap port periphery of diameter a is provided with the card slot of width s, cap port front end face to card slot distance t；Clamp spring width f, thickness x；Clamp spring outer diameter b after embedded card slot；Movable nut includes front endoporus and rear portion necking, diameter of bore c, reentrant diameter e；It is step surface between necking and endoporus；The seal groove of diameter d, step surface to seal groove distance z are provided on inner hole wall；A≤e ＜ b≤c ＜ d, a+2f≤d, x≤s, z≤s+t；Sealing ring is located in seal groove；There are left diaphragm seal, valve ball, right diaphragm seal, valve seat left part to stretch into valve chamber, have cushion seal pad between the end face and valve seat right end of valve port right end in the valve chamber inside valve port；Another port of valve body other than cap port and valve port, which is periphery, has externally threaded external screw thread port.
Description
Technical field
This technology is related to ball valve, specifically, being a kind of three-way ball valve.
Background technology
Three-way ball valve common at present, referring to Fig. 1,2, it has valve body 1, and there are three the ports communicated for valve body tool, wherein
A port is the cap port 11 of connection activity nut 2, and a port is the valve port 12 of mounting ball valve 5.
Movable nut 2 includes the necking 22 of the endoporus 21 and rear portion of front, and step surface 23 is formed between necking and endoporus.Cap
Port and the specific connection structure of movable nut are：For the installation of movable nut 2, generally requires and pass through spiral shell in cap port 11
Line pair connects a pressure cap 4, and the bulge loop 41 of pressure cap limits movable nut and moves forward to be detached from cap port.But in this way, wanting
Increase an additional part pressure cap 4, increases manufacturing cost；And in order to which pressure cap is packed into cap port 11, generally in pressure cap
Endoporus is set as the tightening portion with interior hexagonal, and stretching into tightening portion by outer hexagonal spanner screws pressure cap, inevitable in this way
The fluid channel of three-way ball valve can be polluted；In addition, the screw thread pair between pressure cap and cap port will appear risk of leakage.
Ball valve 5 generally comprises left diaphragm seal 51, valve ball 52, right diaphragm seal 53, valve seat 54, valve rod 55, handle 56.Valve port
Connection structure with ball valve is：Left diaphragm seal, valve ball, right diaphragm seal, valve seat are set gradually in the valve chamber inside valve port 12
Left part, the left part 541 of valve seat stretches into valve chamber and is connected through a screw thread with valve chamber, the end face of valve port right end be located at valve
Valve seat right end diameter contact outside chamber is pressed on left diaphragm seal, valve ball, right diaphragm seal in valve chamber by left part 541.This
Kind of structure, to the parts such as the left part of left diaphragm seal, valve ball, right diaphragm seal, valve chamber, valve seat valve chamber axial direction ruler
It is very little, cooperation required precision is very high, very big to improve processing and assembly cost；If the size there are one parts goes wrong,
It just will appear leakage problem, especially will appear and seal unreliable caused leakage between valve ball and left diaphragm seal, right diaphragm seal
Problem.
This three-way ball valve, valve seat can not also be with the external hoses of other water equipments（Such as the hose of water purifier）Quickly connect
It connects.In order to quickly be connect with external hose, the quick coupling for installing an extra purchase again on valve seat is needed.Fast quick access
Head belongs to the prior art, but higher price.Valve seat can be connected to external hose by quick coupling.
Invention content
The purpose of this technology is to provide a kind of with simple in structure, simple installation, ball valve of low cost, sealed reliable.
Ball valve described in this technology has valve body, and for valve body tool there are three the port communicated, one of port is that connection is lived
The cap port of dynamic nut, a port are the valve port of mounting ball valve；Cap port and the specific connection structure of movable nut are：
The cap port periphery of a diameter of a is provided with the card slot that width is s, and clamp spring is embedded in card slot；The front end face of cap port to card slot away from
From for t；Clamp spring is f in the width of radial direction, and thickness in the axial direction is x；Clamp spring outer diameter after embedded card slot is b；It is living
Dynamic nut includes the endoporus of front and the necking at rear portion, diameter of bore c, reentrant diameter e；Platform is formed between necking and endoporus
Terrace；A diameter of d is provided on inner hole wall, the seal groove that width is y, the distance of step surface to seal groove is z；A≤e ＜
B≤c ＜ d, a+2f≤d, x≤s, z≤s+t；Sealing ring position in sealing contact is formed with the front end face of cap port under external force
In in seal groove；Movable spiro cap is mounted in cap port periphery, since the clamp spring outer diameter b in embedded card slot is more than reentrant diameter e,
Movable nut is prevented to move forward to be detached from cap port；Have on endoporus between movable nut front end and seal groove
Internal thread；The connection structure of valve port and ball valve is：Left diaphragm seal, valve ball, the right side are set gradually in the valve chamber inside valve port
The left part of the left part of diaphragm seal, valve seat, valve seat is stretched into valve chamber and is connected through a screw thread with valve chamber, the end face of valve port right end
Cushion seal pad is provided between valve seat right end；In three ports communicated of valve body, other than cap port and valve port
Another port, which is periphery, has externally threaded external screw thread port.
The advantageous effect of this technology：This technology has abandoned the limit of the pressure cap that is commonly connected through a screw thread to movable nut
Position, but the limit to movable nut is realized by a clamp spring in cap port periphery, it is simple in structure, cost is reduced,
It avoids and fluid channel is polluted when pressure cap is tightened using the tightening tool for stretching into pressure cap endoporus, while also eliminating pressure
Screw thread pair between cap and cap port connects the risk of leakage easily occurred.Step surface to seal groove trailing flank in the axial direction
On distance z≤card slot width s+ caps port in the axial direction front end face to card slot front side wall distance t so that work as card
When spring and step surface contact, seal groove trailing flank is in the rear portion of the front end face of cap port or front end face with cap port
Concordant position, in this way, when exterior line is connect with this ball valve, exterior line by with screw-internal thread fit on movable nut,
The end face of exterior line can be pressed on sealing ring in the front end face of cap port, realize reliable sealing.When sealing ring is embedded in
When in seal groove, sealing ring also limit movable nut axially direction displacement distance, it is compact in structure and convenient to use.
Another port other than cap port and valve port, which is periphery, has externally threaded external screw thread port.By outer
Threaded port may be implemented quickly to connect by screw thread with external pipeline.
Due to having cushion seal pad between the end face and valve seat right end of valve port right end（The end face of valve port right end and valve seat
It is not directly contacted in the axial direction between right end）, so the length for screwing in the left part of valve chamber part valve seat can be as needed
It freely adjusts, not only reduces the requirement on machining accuracy to parts such as left diaphragm seal, valve ball, right diaphragm seal, valve seats, also reduce
Matching requirements, and reliable sealing is realized between left part for enabling to left diaphragm seal, valve ball, right diaphragm seal, valve seat etc.；Separately
Outside, which also functions to sealing function between the end face and valve seat right end of valve port right end, just in case the screw thread of ball valve
Secondary sealing fails, and will not cause leakage problem, to play the role of reinforcing sealing.
Above-mentioned ball valve, c ＜ a+2f；x≤y.In this way, the size of movable nut can be further decreased, cost is reduced.
Above-mentioned ball valve, the limit that the rear portion setting limitation activity nut of card slot continues to move to backward on the periphery of cap port
Platform, when not installing sealing ring, movable nut can move axially between clamp spring and limiting stand；When movable nut and limiting stand
Contact be when cannot move backward, the trailing flank of seal groove and the trailing flank flush of card slot or positioned at the trailing flank of card slot
Rear.By the way that limiting stand is arranged, the moving range of movable nut in the axial direction is limited so that this ball-valve structure more steps up
It gathers, reduces cost.When installing clamp spring, in order to make clamp spring smoothly be packed into card slot, the trailing flank of seal groove is prevented
It may stop that clamp spring moves backward so that clamp spring cannot enter in card slot, so should require to connect with limiting stand when movable nut
It touches when cannot move backward, the trailing flank of seal groove and the trailing flank flush of card slot or behind the trailing flank of card slot
Side.As a further improvement, preferably c ＜ a+2f；x≤y；In this way, shape is more compact, it is of low cost；But at this time in order not to
Difficulty is brought to the installation of clamp spring, best right angle setting when assembling jump ring is covered, first clamp spring is sleeved on close to cap port front end face
On the periphery at place, and clamp spring is located in seal groove, then the tool push card by being stretched between endoporus and cap port
Spring moves backward, and movable nut can follow movement, and clamp spring is made smoothly to slide into card slot；And there are one excellent for such ball valve
Point is exactly that after clamp spring is installed in card slot, can not be removed out of card slot again, that is to say, that and clamp spring can not be detached from cap port periphery,
Certainly activity nut also can not just be removed（It is detached from cap port periphery）, safety when increasing use, transport.
Above-mentioned ball valve, a ＜ e ＜ b ＜ c ＜ a+2f ＜ d, x≤y, x=s, z=s+t；Thickness≤y of sealing ring.In this way, knot
While structure is small and exquisite, movable nut moves axially or is rotated about axis relative to cap port also more flexible.
The section of above-mentioned ball valve, clamp spring is circle, and the section of card slot is arc.Arc-shaped slot section can reduce cap end
Mouth periphery stress concentration at card slot, prevents from being broken.Above-mentioned ball valve, with round-corner transition between step surface and inner hole wall.Fillet
Transition reduces the stress concentration of junction between step surface and inner hole wall, and bearing capacity is big, prevents from being broken.
Above-mentioned ball valve is axially provided with O-ring seal and elasticity in the channel communicated with valve chamber inside valve seat
Set, resilient sleeve have the envelope for being looped around three or more circumferential arc spring laminations and being connect jointly with the same end of each arc spring lamination
Closed loop；Each arc spring lamination has the claw on same circumference.O-ring seal and resilient sleeve are zero in quick coupling
Part, this technology are applied to two main parts in quick coupling in this valve seat, play and quickly connect with external hose
The purpose connect.In this way, no longer needing to the quick coupling of purchasing price costliness, it can also realize and quickly be connect with external hose.In use,
External hose stretches into O-ring seal and resilient sleeve, and the O-ring seal of external hose and periphery is in sealing contact, while each claw
Under the elastic reaction of each arc spring lamination, hose clamping and positioning is being connect radially outward.
Description of the drawings
Fig. 1 is the sectional view of existing three-way ball valve；
Fig. 2 is another sectional view of existing three-way ball valve；
Fig. 3 is the sectional view of this three-way ball valve（Movable nut and clamp spring contact condition）；
Fig. 4 is the sectional view of this three-way ball valve（Movable nut and limiting stand contact condition）；
Fig. 5 is the sectional view of this three-way ball valve；
Fig. 6 is cap port and movable nut partial enlarged view；
Fig. 7 is resilient sleeve stereogram.
Specific implementation mode
This technology is described further with reference to the accompanying drawings and detailed description.
Referring to three-way ball valve shown in Fig. 3,4, there is valve body 1, there are three the port communicated, one of ports for valve body tool
For the cap port 11 of connection activity nut 2, a port is the valve port 12 of mounting ball valve 5, and a port is outside periphery has
The external screw thread port 13 of screw thread.
Movable nut includes the endoporus 21 of front and the necking 22 at rear portion, diameter of bore c, reentrant diameter e；Necking with
Step surface 23 is formed between endoporus；With round-corner transition between step surface and inner hole wall.
The section of clamp spring 4 is the circle of a diameter of R, it is clear that clamp spring 4 is f's=in the axial direction in the width of radial direction
Thickness is x=diameter R.It is provided with card slot 111 in the cap port periphery of a diameter of a, the width of card slot 111 in the axial direction is s>Directly
Diameter R.Clamp spring outer diameter after embedded card slot is b.
The front end face 112 of cap port arrives card slot leading flank（Card slot is with cap port periphery close to the front end face of cap port
112 intersection）Distance be t.
Be provided on the inner hole wall of movable nut a diameter of d, in the axial direction width be y seal groove 211, step surface
The trailing flank distance of 23 to seal groove is z；A ＜ e ＜ b ＜ c ＜ a+2f ＜ d, x ＜ s, z ＜ s+t；X ＜ y.
There is internal thread on endoporus between movable nut front end and seal groove.Sealing ring is located in seal groove,
The width y of the thickness ＜ seal grooves of sealing ring.Movable spiro cap be mounted in cap port periphery, when exterior line by with movable screw
The end face of screw-internal thread fit on cap, exterior line can be pressed on sealing ring in the front end face of cap port, realize reliable close
Envelope.Since the clamp spring outer diameter b in embedded card slot is more than reentrant diameter e, movable nut is prevented to move forward to be detached from cap end
Mouthful.
The limiting stand 3 that the rear portion setting limitation activity nut of card slot continues to move to backward on the periphery of cap port.Referring to figure
4, when not installing sealing ring, movable nut can move axially between clamp spring and limiting stand.
A left side for left diaphragm seal 51, valve ball 52, right diaphragm seal 53, valve seat 54 is set gradually in the valve chamber inside valve port 12
End 541.Left diaphragm seal 51, valve ball 52, right diaphragm seal 53, valve seat 54, valve rod 55, handle 56 etc. constitute ball valve 5.Valve seat
Left part is stretched into valve chamber and is connected through a screw thread with valve chamber, and 542 diameter of right end of valve seat is more than left part 541, the right end of valve seat
542 are located at outside valve chamber, and cushion seal pad 6 is provided between the end face 121 and valve seat right end of valve port right end.
It is axially from left to right provided with O-ring seal 7 and resilient sleeve in the channel communicated with valve chamber inside valve seat
8.Resilient sleeve 8, which has, to be looped around 4 or 4 or more circumferential arc spring laminations 81 and is connect jointly with the right end of each arc spring lamination
Closed-loop 82；Circumferentially the adjacent arc spring lamination 81 in direction has gap 84, this structure to make to the left end of arc spring lamination 81
The left end of arc spring lamination 81 has certain elasticity in radial direction.Each arc spring lamination has the claw 83 on same circumference.
Due to having cushion seal pad between the end face and valve seat right end of valve port right end（The end face of valve port right end and valve seat
It is not directly contacted in the axial direction between right end）, so the length for screwing in the left part of valve chamber part valve seat can be as needed
It freely adjusts, not only reduces the requirement on machining accuracy to parts such as left diaphragm seal, valve ball, right diaphragm seal, valve seats, also reduce
Matching requirements, and reliable sealing is realized between left part for enabling to left diaphragm seal, valve ball, right diaphragm seal, valve seat etc.；Separately
Outside, which also functions to sealing function between the end face and valve seat right end of valve port right end, just in case the screw thread of ball valve
Secondary sealing fails, and will not cause leakage problem, to play the role of reinforcing sealing.This technology is two in quick coupling
Main parts are applied in this valve seat, play the purpose quickly being connect with external hose.In this way, no longer needing to purchasing price
Expensive quick coupling, can also realize and quickly be connect with external hose.In use, external hose stretches into O-ring seal and elasticity
In set, the O-ring seal of external hose and periphery is in sealing contact, while each claw is under the elastic reaction of each arc spring lamination,
Hose clamping and positioning is connect radially outward.
Claims (4)
1. a kind of ball valve has valve body, for valve body tool there are three the port communicated, one of port is the cap of connection activity nut
Port, a port are the valve port of mounting ball valve；It is characterized in that：Cap port and the specific connection structure of movable nut are：
The cap port periphery of a diameter of a is provided with the card slot that width is s, and clamp spring is embedded in card slot；The front end face of cap port to card slot away from
From for t；Clamp spring is f in the width of radial direction, and thickness in the axial direction is x；Clamp spring outer diameter after embedded card slot is b；It is living
Dynamic nut includes the endoporus of front and the necking at rear portion, diameter of bore c, reentrant diameter e；Platform is formed between necking and endoporus
Terrace；A diameter of d is provided on inner hole wall, the seal groove that width is y, the distance of step surface to seal groove is z；A≤e ＜
B≤c ＜ d, a+2f≤d, x≤s, z≤s+t；Sealing ring position in sealing contact is formed with the front end face of cap port under external force
In in seal groove；Movable spiro cap is mounted in cap port periphery, since the clamp spring outer diameter b in embedded card slot is more than reentrant diameter e,
Movable nut is prevented to move forward to be detached from cap port；Have on endoporus between movable nut front end and seal groove
Internal thread；The connection structure of valve port and ball valve is：Left diaphragm seal, valve ball, the right side are set gradually in the valve chamber inside valve port
The left part of the left part of diaphragm seal, valve seat, valve seat is stretched into valve chamber and is connected through a screw thread with valve chamber, the end face of valve port right end
Cushion seal pad is provided between valve seat right end；In three ports communicated of valve body, other than cap port and valve port
Another port, which is periphery, has externally threaded external screw thread port.
2. ball valve as described in claim 1, it is characterized in that：C ＜ a+2f；x≤y.
3. ball valve as described in claim 1, it is characterized in that：Limitation activity nut is arranged in the rear portion of card slot on the periphery of cap port
The limiting stand continued to move to backward, when not installing sealing ring, movable nut can move axially between clamp spring and limiting stand；
When movable nut is contacted with limiting stand to be moved backward, the trailing flank of seal groove and the trailing flank flush of card slot or
Rear positioned at the trailing flank of card slot.
4. ball valve as described in claim 1, it is characterized in that：A ＜ e ＜ b ＜ c ＜ a+2f ＜ d, x≤y, x=s, z=s+t；Sealing
Thickness≤y of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274541.2A CN105805344B (en) | 2016-04-28 | 2016-04-28 | A kind of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274541.2A CN105805344B (en) | 2016-04-28 | 2016-04-28 | A kind of ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105805344A CN105805344A (en) | 2016-07-27 |
| CN105805344B true CN105805344B (en) | 2018-08-03 |
Family
ID=56457779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610274541.2A Expired - Fee Related CN105805344B (en) | 2016-04-28 | 2016-04-28 | A kind of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805344B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000054A (en) * | 2018-08-28 | 2018-12-14 | 无锡市奥凯金属制品有限公司 | Pipe fitting and high-pressure gas pipelines attachment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2283172Y (en) * | 1997-01-07 | 1998-06-03 | 程平 | Low pressure steam pipeline connecting piece |
| CN201057330Y (en) * | 2006-10-16 | 2008-05-07 | 北京万商集贸易有限责任公司 | Integral fast pipe interface, joint and blanking adapter |
| CN201696648U (en) * | 2010-06-12 | 2011-01-05 | 上海龙胜实业有限公司 | Three-way drain valve with loose joint structure |
-
2016
- 2016-04-28 CN CN201610274541.2A patent/CN105805344B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2283172Y (en) * | 1997-01-07 | 1998-06-03 | 程平 | Low pressure steam pipeline connecting piece |
| CN201057330Y (en) * | 2006-10-16 | 2008-05-07 | 北京万商集贸易有限责任公司 | Integral fast pipe interface, joint and blanking adapter |
| CN201696648U (en) * | 2010-06-12 | 2011-01-05 | 上海龙胜实业有限公司 | Three-way drain valve with loose joint structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105805344A (en) | 2016-07-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 211219 18 Fengfeng mountain road, Hong Lan town, Lishui District, Nanjing, Jiangsu, 18 Applicant after: Nanjing Huyou Metallurgy Machinery Manufacturing Co.,Ltd. Address before: 211222 sang yuan Pu, Lishui, Nanjing, Jiangsu Applicant before: Nanjing Huyou Metallurgy Machinery Manufacturing Co.,Ltd. |
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| CB02 | Change of applicant information | ||
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20190428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |