CN103196036B - CNG (Compressed Natural Gas) inflation valve conversion joint - Google Patents
CNG (Compressed Natural Gas) inflation valve conversion joint Download PDFInfo
- Publication number
- CN103196036B CN103196036B CN201310112799.9A CN201310112799A CN103196036B CN 103196036 B CN103196036 B CN 103196036B CN 201310112799 A CN201310112799 A CN 201310112799A CN 103196036 B CN103196036 B CN 103196036B
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- Prior art keywords
- joint
- valve
- gun
- gas charging
- protective housing
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- Expired - Fee Related
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a CNG (Compressed Natural Gas) inflation valve conversion joint. A shaft body (1) is in a step-shaped cylindrical structure; the small shaft section of the shaft body (1) is a valve joint (2); the large shaft section of the shaft body (1) is a nozzle joint (3); an annular clamping groove (4) is formed in the periphery wall of the nozzle joint (3); an inner hole (5) is formed in the axis of the nozzle joint (3); one end of the inner hole (5) passes through the end surface of the nozzle joint (3); the other end of the inner hole (5) extends to the middle of the valve joint (2) and is communicated with an air outlet (6) in the radial direction of the valve joint (2); a nut (7) is sleeved at the shaft end part of the valve joint (2); and the nut (7) is in threaded match with the valve joint (2). The CNG inflation valve conversion joint is simple in structure, easy to machine and manufacture, low in production cost and wide in application range; an inflation port of an inflation valve is externally connected into a male joint type from a female port type; the installation is simple, convenient and rapid; and convenience is brought for both automobile production and automobile gas refilling.
Description
Technical field
The invention belongs to motor car engine air supply system technical field, specifically, particularly a kind of CNG gas charging valve crossover sub.
Background technique
Owing to producing without waste residue, waste water after combustion of natural gas, clean environment firendly, has the advantages such as the safety of use, calorific value are high, clean compared to coal, oil equal energy source.Rock gas is widely used in motor car engine as desirable internal-combustion engine alternative fuel, and vehicle CNG (compressed natural gas) gas charging valve is as the safety attachment in natural gas used for automobile pipe-line system, its major function is the opening and closing device that fills, exits as automobile, for automobile pipeline system provides motivational guarantee.
Existing CNG filling gun is divided into male and female type, and gas charging valve also has corresponding male and female type like this.At present domestic application is more is that the inflation inlet of gas charging valve is female mouthful, and the male rifle head of filling gun extend in female mouthful of gas charging valve.Foreign applications is more is that the rifle head of filling gun is female mouthful, and the inflation male of gas charging valve is clamped by female mouthful, the rifle head of filling gun.Above two kinds of forms exist larger difference on the filling interface structure of gas charging valve, and existing CNG gas charging valve only has independent male type or the inflation inlet of parent form, gas charging valve is inflation male can only be applicable to rifle head and annotate for the filling gun of female mouthful, gas charging valve is female mouthful of inflation, and can only to be applicable to rifle head be that the filling gun of male is annotated, so be very restricted in application: on the one hand, during automobile production, for domestic, need to be equipped with separately different CNG gas charging valves with the automobile of outlet, increased the process complexity of producing assembling; On the other hand, automobile is when aerating, if run into filling gun and gas charging valve male-female port cannot be inflated when unpaired, for the inflation of automobile has brought inconvenience.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of CNG gas charging valve crossover sub of realizing the conversion of gas charging valve inflation inlet.
Technological scheme of the present invention is as follows: a kind of CNG gas charging valve crossover sub, axis body (1) is stepped shape column structure, the little shaft part of this axis body (1) is valve joint (2), large shaft part is gun joint (3), on the periphery wall of described gun joint (3), be provided with annular draw-in groove (4), and have endoporus (5) in the axle center of gun joint (3), one end of this endoporus (5) connects to the end face of gun joint (3), the other end of endoporus (5) extends to the middle part of valve joint (2), and be communicated with air outlet hole (6) radially on valve joint (2), shaft end at described valve joint (2) is set with nut (7), this nut (7) and valve joint (2) screw-thread fit.
The present invention is step-like crossover sub by designing a kind of axis body, and during assembling, the valve joint of little shaft part extend in the inflation inlet of gas charging valve, and the shaft end of valve joint passes and by nut check from inflation inlet.In the time of need to inflating, the muzzle of filling gun is aimed to gun joint of the present invention, and the clip promoting on filling gun clamps the draw-in groove on gun joint, can carry out aerating operation.
The present invention can be directly installed on the gas charging valve that inflation inlet is female shape of the mouth as one speaks, and the inflation inlet of gas charging valve is connected into male type outward by female shape of the mouth as one speaks, installs simple and convenient.When automobile production, can be according to selecting whether to install the present invention additional by the type of filling gun used in regional extent, and do not need to select different gas charging valves, and reduced the trouble of assembling, also reduced the cost of assembling.When refueling, if run into filling gun, be public type, can pass through the direct aerating of gas charging valve; If run into filling gun and be parent form, the present invention can be directly installed on gas charging valve, and not need to change gas charging valve, like this for the inflation of automobile has brought convenience, greatly improved the efficiency of inflation.
In order to increase the sealing of docking between filling gun head and the present invention, prevent that joint from producing gas leakage, at the place, aperture of described endoporus (5), an O shape circle (10) is housed.
Air outlet hole (6) on described valve joint (2) is criss-crossing hole radially.The smoothness that air outlet hole is given vent to anger has not only been improved in criss-crossing hole radially, and has improved gas and flow to the uniformity in gas charging valve inflation inlet by endoporus of the present invention, makes flowing of gas in duct more steady.
Described valve joint (2) has a pair of annular groove on the axis body on air outlet hole (6) both sides, and the 2nd O shape circle (11) is all housed in each annular groove.Like this, after valve joint extend in the inflation inlet of gas charging valve, the axis body of valve joint and the inflation inlet of gas charging valve have been realized sealing, in the time of effectively preventing from inflating, the gap of gas between inflation inlet and valve joint, spill.
On the axial wall of described gun joint (3), milling has a pair of platform about axle center symmetry (9), and this is to the draw-in groove (4) on the close gun joint (3) of platform (9).On gun joint, after milling platform, can be used as the clamping part of spanner.When the nut on valve joint axle head carries out locking operation, can clamp platform place by spanner, also and then rotation of valve joint and gun joint while preventing turn nut.
On described gun joint (3), be provided with protective housing (8), this protective housing (8) is " U " shape, the first side wall of protective housing (8) is set on the outer wall of gun joint (3) one end, the second sidewall of protective housing (8) is close to the end face of gun joint (3) the other end, and by the orifice sealing of endoporus (5); The internal surface of described protective housing (8) second sidewalls extends towards the direction one of valve joint (2), be formed with sleeve (12), this sleeve (12) ring set is at the outer circumferential side of gun joint (3), on the inwall of described sleeve (12), be formed with pair of projections, this is stuck on the platform (9) that gun joint (3) is corresponding boss.
Protective housing is designed to " U " shape, and moulding is simple, and processing and fabricating is easy, and cost is low; Protective housing is sleeved on gun joint by the first side wall, can make the end face of the second sidewall and gun joint be close on the one hand, realizes good sealing, to prevent that dust from entering in endoporus; On the other hand, when inflating, the second sidewall leaves the aperture of endoporus, but the first side wall is still connected with gun joint, can prevent that protective housing from occurring to lose or lose, and it is more convenient, quick to reseal endoporus.Sleeve set on the second sidewall can play better proofing dust and protecting effect to the port of gun joint, also can protect the outer wall of gun joint to be polluted simultaneously.The boss forming on sleeve lining coordinates with the platform on gun joint, can prevent from producing mutually and rotating between protective housing and gun joint, has improved the fixing of protective housing suit.
Beneficial effect of the present invention is as follows:
1) the present invention can be directly installed on the gas charging valve that inflation inlet is female shape of the mouth as one speaks, and the inflation inlet of gas charging valve is connected into male type outward by female shape of the mouth as one speaks, easy to use, installs simple and fast.
2) when automobile production, can select whether on the gas charging valve of female shape of the mouth as one speaks, to install the present invention additional according to the type of the filling gun with the same employing of regional extent, and not need to select different gas charging valves, reduced the trouble of assembling, also reduced the cost of assembling.
3) when refueling, if run into filling gun, be female shape of the mouth as one speaks, the present invention can be directly installed on gas charging valve, and not need to change gas charging valve, not only improved the using scope of gas charging valve, also for the inflation of automobile has brought convenience.
4) simple in structure, processing and fabricating is easy, and cost of production is low, has wide range of applications.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A cross-sectional view in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1 and Figure 2, the crossover sub of gas charging valve has axis body 1, and this axis body 1 is stepped shape column structure, and the little shaft part of axis body 1 is valve joint 2, and the large shaft part of axis body 1 is gun joint 3.Described valve joint 2 is positioned at gun joint 3 left side as shown in Figure 1, and both shaft axiss point-blank.On the periphery wall of described gun joint 3, be provided with annular draw-in groove 4, the section of this draw-in groove 4 is the little trapezoid shaped of the large bottom land of notch.On the axial wall of gun joint 3, milling has a pair of platform 9 about axle center symmetry, this to platform 9 between draw-in groove 4 and valve joint 2, and near draw-in groove 4.In the axle center of described gun joint 3, have endoporus 5, the right-hand member of this endoporus 5 connects to the right side of gun joint 3, and at the place, aperture of endoporus 5, an O shape circle 10 is housed; The left end of endoporus 5 extends to the middle part of valve joint 2 left, and endoporus 5 is little in the aperture of the aperture ratio gun joint 3 hole sections of valve joint 2 hole sections, and the left part of endoporus 5 is communicated with the air outlet hole 6 of offering on valve joint 2.Described air outlet hole 6 is positioned at the middle part of valve joint 2, and air outlet hole 6 is criss-crossing hole radially.At valve joint 2, be positioned on the axis body of air outlet hole 6 the right and lefts and have a pair of annular groove (each two totally four, limit, left and right), the 2nd O shape circle 11 is all housed in each annular groove.Left part at described valve joint 2 is also set with nut 7, this nut 7 and valve joint 2 screw-thread fit.
As shown in Figure 1 and Figure 2, on described gun joint 3, be equipped with protective housing 8, this protective housing 8 is " U " shape, by EVA material (ethylene-vinyl acetate copolymer), is made.Described protective housing 8 has two sidewalls, the left side be the first side wall, the right be the second sidewall.The first side wall of protective housing 8 is set on the outer wall of gun joint 3 left ends, and the second sidewall of protective housing 8 is close to the end face of gun joint 3 right-hand members, and by the orifice sealing of endoporus 5.The internal surface of described protective housing 8 second sidewalls extends towards the direction one of valve joint 2, is formed with sleeve 12, and these sleeve 12 ring sets are at the outer circumferential side of gun joint 3, and annular groove 4 and platform 9 are covered.On the inwall of described sleeve 12, be formed with pair of projections, this is stuck in boss on the platform 9 of gun joint 3 correspondences, to prevent that protective housing 8 is with respect to gun joint 3 rotations.
Working principle of the present invention is as follows:
If run into filling gun and be public type, can pass through the direct aerating of gas charging valve; If run into filling gun and be parent form, need the present invention to change: valve joint 2 is extend in the inflation inlet of gas charging valve, the shaft end of valve joint 2 passes and locked by nut 7 from inflation inlet.In the time of need to inflating, first the sleeve of protective housing 8 12 is taken off from gun joint 3, make the aperture of endoporus 5 open, then the muzzle of filling gun is aimed to gun joint 3, and the clip promoting on filling gun clamps the draw-in groove 4 on gun joint, filling gun can be sleeved on gun joint 3, realize aerating operation.After adding gas, then the sleeve of protective housing 8 12 is enclosed within on gun joint 3.
Claims (5)
1. a CNG gas charging valve crossover sub, it is characterized in that: axis body (1) is stepped shape column structure, the little shaft part of this axis body (1) is valve joint (2), large shaft part is gun joint (3), on the periphery wall of described gun joint (3), be provided with annular draw-in groove (4), and have endoporus (5) in the axle center of gun joint (3), one end of this endoporus (5) connects to the end face of gun joint (3), the other end of endoporus (5) extends to the middle part of valve joint (2), and be communicated with air outlet hole (6) radially on valve joint (2), shaft end at described valve joint (2) is set with nut (7), this nut (7) and valve joint (2) screw-thread fit, on the axial wall of described gun joint (3), milling has a pair of platform about axle center symmetry (9), and this is to the draw-in groove (4) on the close gun joint (3) of platform (9), on described gun joint (3), be provided with protective housing (8), this protective housing (8) is " U " shape, the first side wall of protective housing (8) is set on the outer wall of gun joint (3) one end, the second sidewall of protective housing (8) is close to the end face of gun joint (3) the other end, and by the orifice sealing of endoporus (5), the internal surface of described protective housing (8) second sidewalls extends towards the direction one of valve joint (2), be formed with sleeve (12), this sleeve (12) ring set is at the outer circumferential side of gun joint (3), on the inwall of described sleeve (12), be formed with pair of projections, this is stuck on the platform (9) that gun joint (3) is corresponding boss.
2. CNG gas charging valve crossover sub as claimed in claim 1, is characterized in that: an O shape circle (10) is equipped with at the place, aperture at described endoporus (5).
3. CNG gas charging valve crossover sub as claimed in claim 1 or 2, is characterized in that: the air outlet hole (6) on described valve joint (2) is criss-crossing hole radially.
4. CNG gas charging valve crossover sub as claimed in claim 3, is characterized in that: described valve joint (2) has a pair of annular groove on the axis body on air outlet hole (6) both sides, and the 2nd O shape circle (11) is all housed in each annular groove.
5. CNG gas charging valve crossover sub as claimed in claim 1, is characterized in that: described protective housing (8) is made by EVA material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112799.9A CN103196036B (en) | 2013-04-02 | 2013-04-02 | CNG (Compressed Natural Gas) inflation valve conversion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112799.9A CN103196036B (en) | 2013-04-02 | 2013-04-02 | CNG (Compressed Natural Gas) inflation valve conversion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103196036A CN103196036A (en) | 2013-07-10 |
| CN103196036B true CN103196036B (en) | 2014-10-29 |
Family
ID=48718762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310112799.9A Expired - Fee Related CN103196036B (en) | 2013-04-02 | 2013-04-02 | CNG (Compressed Natural Gas) inflation valve conversion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103196036B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500806B (en) * | 2014-11-06 | 2017-01-18 | 北京控制工程研究所 | Inflation valve and assembly method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445626C (en) * | 2004-01-27 | 2008-12-24 | 施托布利法韦日公司 | Female connector element, quick connector and filling installation comprising the said female element |
| CN203190034U (en) * | 2013-04-02 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Conversion joint for compressed natural gas charging valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09310791A (en) * | 1996-05-23 | 1997-12-02 | Togo Seisakusho:Kk | Connector |
| JP4367746B2 (en) * | 2003-03-04 | 2009-11-18 | 臼井国際産業株式会社 | Connector for small diameter pipe connection |
| US8251084B2 (en) * | 2006-08-11 | 2012-08-28 | Husky Corporation | Swivel safety breakaway connector |
-
2013
- 2013-04-02 CN CN201310112799.9A patent/CN103196036B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445626C (en) * | 2004-01-27 | 2008-12-24 | 施托布利法韦日公司 | Female connector element, quick connector and filling installation comprising the said female element |
| CN203190034U (en) * | 2013-04-02 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Conversion joint for compressed natural gas charging valve |
Non-Patent Citations (1)
| Title |
|---|
| CNF16L37/23A 2007.10.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103196036A (en) | 2013-07-10 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: 400037 Chongqing city Beibei District caijiagang Zhen Tong Xing Industrial Park Fengqi Road No. 16 Patentee after: Lifan Industry (Group) Co., Ltd. Address before: 400037 Chongqing city Shapingba District No. 60 Zhangjiawan Bridge Patentee before: Lifan Industry (Group) Co., Ltd. |
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| 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: 20141029 Termination date: 20200402 |