CN203190034U - Conversion joint for compressed natural gas charging valve - Google Patents

Conversion joint for compressed natural gas charging valve Download PDF

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Publication number
CN203190034U
CN203190034U CN 201320160878 CN201320160878U CN203190034U CN 203190034 U CN203190034 U CN 203190034U CN 201320160878 CN201320160878 CN 201320160878 CN 201320160878 U CN201320160878 U CN 201320160878U CN 203190034 U CN203190034 U CN 203190034U
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CN
China
Prior art keywords
joint
valve
gun
gas charging
compressed natural
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.)
Withdrawn - After Issue
Application number
CN 201320160878
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Chinese (zh)
Inventor
徐义滔
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Lifan Technology Group Co Ltd
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Lifan Industry Group Co Ltd
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Filing date
Publication date
Application filed by Lifan Industry Group Co Ltd filed Critical Lifan Industry Group Co Ltd
Priority to CN 201320160878 priority Critical patent/CN203190034U/en
Application granted granted Critical
Publication of CN203190034U publication Critical patent/CN203190034U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a conversion joint for a compressed natural gas charging valve. A shaft body (1) is of a step-shaped columnar 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 gun joint (3), the peripheral wall of the gun joint (3) is provided with an annular clamp slot (4), the shaft center of the gun joint (3) is provided with an inner hole (5), one end of the inner hole (5) penetrates the end face of the gun joint (3), the other end of the inner hole (5) extends to the middle part of the valve joint (2) and communicated with a radial air outlet hole (6) on the valve joint (2), the shaft end part of the valve joint (2) is sleeved with a nut (7), and the nut (7) is in threaded connection with the valve joint (2). The conversion joint disclosed by the utility model is simple in structure, easy to process and manufacture, low in production cost and wide in application range; the charging port of the charging valve can be changed from a female mouth form into a male head form through external connection, so that the conversion joint is installed simply, conveniently and rapidly, and brings convenience to the production and gas charging of automobiles.

Description

Compressed natural gas gas charging valve crossover sub
Technical field
The utility model belongs to motor car engine air supply system technical field, specifically, and particularly a kind of compressed natural gas gas charging valve crossover sub.
Background technique
Because do not have waste residue, waste water generation behind the combustion of natural gas, clean environment firendly has advantages such as the safety of use, calorific value height, cleaning compared to coal, oil equal energy source.Rock gas is widely used on motor car engine as desirable internal-combustion engine alternative fuel, and compressed natural gas used as vehicle fuel (compressed natural gas) gas charging valve is as the safety attachment on the natural gas used for automobile pipe-line system, its major function is the opening and closing device that fills, exits as automobile, for the automobile pipe-line system provides motivational guarantee.
Existing compressed natural gas filling gun is divided into the male and female type, and gas charging valve also has corresponding male and female type like this.Present domestic application is more is that the inflation inlet of gas charging valve is female mouthful, and the public rifle head of filling gun extend in female mouthful of gas charging valve.External to use more be that the rifle head of filling gun is female mouthful, and the inflation male of gas charging valve is clamped for female mouthful by the rifle head of filling gun.More than two kinds of forms exist bigger difference at the filling interface structure of gas charging valve, and existing compressed natural gas gas charging valve has only independent male type or the inflation inlet of parent form, gas charging valve is annotated for female mouthful filling gun for the rifle head that can only be applicable to of inflation male, gas charging valve is that the filling gun of male is annotated for the rifle head that can only be applicable to of female mouthful of inflation, so be very restricted in application: on the one hand, during automobile production, need to be equipped with separately different compressed natural gas gas charging valves for domestic with the automobile of outlet, increased the process complexity of producing assembling; On the other hand, automobile can't be inflated when unpaired if run into filling gun and gas charging valve male-female port when aerating, for the inflation of automobile has brought inconvenience.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of compressed natural gas gas charging valve crossover sub of realizing the conversion of gas charging valve inflation inlet.
The technical solution of the utility model is as follows: a kind of compressed natural gas gas charging valve crossover sub, axis body (1) is the stepped shape column structure, the little shaft part of this axis body (1) is valve joint (2), big shaft part is gun joint (3), be provided with the draw-in groove (4) of annular at the periphery wall of described gun joint (3), 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 radially air outlet hole (6) on the 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 utility model 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 from inflation inlet and by nut check.When needing inflation, the muzzle of filling gun is aimed at gun joint of the present utility model, and promote clip on the filling gun and clamp draw-in groove on the gun joint, can carry out the aerating operation.
The utility model 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 the male type outward by female shape of the mouth as one speaks, installs simple and convenient.When automobile production, can select whether to install the utility model additional according to the type of using used filling gun in the regional extent, and not need to select different gas charging valves, reduced the trouble of assembling, also reduced the cost of assembling.When refueling, be public type if run into filling gun, can pass through the direct aerating of gas charging valve; If run into filling gun and be parent form, can directly at gas charging valve the utility model be installed, and not need to change gas charging valve, brought convenience for the inflation of automobile like this, improved the efficient of inflation greatly.
In order to increase the sealing of docking between filling gun head and the utility model, prevent that the joint from producing gas leakage, at the place, aperture of described endoporus (5) O shape circle (10) is housed.
Air outlet hole (6) on the described valve joint (2) is criss-crossing hole radially.Criss-crossing hole radially not only improved the smoothness that air outlet hole is given vent to anger, and improved gas and flow to uniformity in the gas charging valve inflation inlet by the utility model endoporus, makes in the duct gas flow more steady.
Described valve joint (2) has a pair of annular groove at the axis body on air outlet hole (6) both sides, and the 2nd O shape circle (11) all is 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 had been realized sealing, spill the gap of gas between inflation inlet and valve joint in the time of effectively preventing from inflating.
Milling has a pair of platform about the axle center symmetry (9) on the axial wall of described gun joint (3), and this is to the draw-in groove (4) on the close gun joint (3) of platform (9).Behind the milling platform, can be used as the clamping part of spanner on the gun joint.When the nut on the valve joint axle head carries out locking operation, can clamp the platform place by spanner, also and then rotation of valve joint and gun joint when preventing the turn nut.
Described gun joint (3) is 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 ends, second sidewall of protective housing (8) is close to the end face of gun joint (3) the other end, and the aperture of endoporus (5) is sealed; Described protective housing (8) second inside surface of side wall are extended 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), inwall at described sleeve (12) is formed with pair of projections, and this is stuck on the corresponding platform (9) of gun joint (3) 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 the gun joint by the first side wall, on the one hand the end face of second sidewall and gun joint is close to, and realizes good sealing, enters in the endoporus to prevent dust; On the other hand, when inflating, second sidewall leaves the aperture of endoporus, but the first side wall still links to each other with gun joint, can prevent that protective housing from taking place to lose or lose, and it is more convenient, quick to reseal endoporus.Sleeve set on 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 that forms on the sleeve lining cooperates with platform on the gun joint, can prevent from producing mutually between protective housing and the gun joint rotating, and has improved the fixing of protective housing suit.
The beneficial effects of the utility model are as follows:
1) the utility model 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 the male type outward by female shape of the mouth as one speaks, and is easy to use, installs simple and fast.
2) when automobile production, can be according to using regional extent whether to select to install the utility model additional at the gas charging valve of female shape of the mouth as one speaks with the type of the filling gun that adopts, and do not need to select different gas charging valves, and reduced the trouble of assembling, also reduced the cost of assembling.
3) when refueling, be female shape of the mouth as one speaks if run into filling gun, can directly at gas charging valve the utility model be installed, and not need to change gas charging valve, not only improved the using scope of gas charging valve, also brought convenience for the inflation of automobile.
4) simple in structure, processing and fabricating is easy, and cost of production is low, has wide range of applications.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cross-sectional view among Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
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 the stepped shape column structure, and the little shaft part of axis body 1 is valve joint 2, and the big 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.Periphery wall at described gun joint 3 is provided with annular draw-in groove 4, and the section of this draw-in groove 4 is the little trapezoid shaped of the big bottom land of notch.Milling has a pair of platform 9 about the axle center symmetry on the axial wall of gun joint 3, this to platform 9 between draw-in groove 4 and valve joint 2, and near draw-in groove 4.Have endoporus 5 in the axle center of described gun joint 3, 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 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 littler than the aperture of gun joint 3 hole sections in the aperture of valve joint 2 hole sections, and the air outlet hole of offering on the left part of endoporus 5 and the valve joint 26 is communicated with.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.The axis body that is positioned at air outlet hole 6 the right and lefts at valve joint 2 has a pair of annular groove (each two totally four on limit, the left and right sides), and the 2nd O shape circle 11 all is housed in each annular groove.Left part at described valve joint 2 also is set with nut 7, this nut 7 and valve joint 2 screw-thread fit.
As shown in Figure 1 and Figure 2, be equipped with protective housing 8 at described gun joint 3, this protective housing 8 is " U " shape, is made by EVA material (ethylene-vinyl acetate copolymer).Described protective housing 8 has two sidewalls, the left side be the first side wall, the right be second sidewall.The first side wall of protective housing 8 is set on the outer wall of gun joint 3 left ends, and second sidewall of protective housing 8 is close to the end face of gun joint 3 right-hand members, and the aperture of endoporus 5 is sealed.Described protective housing 8 second inside surface of side wall are extended towards the direction one of valve joint 2, are 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.Inwall at described sleeve 12 is formed with pair of projections, and 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 utility model 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, then need the utility model conversion: valve joint 2 is extend in the inflation inlet of gas charging valve, the shaft end of valve joint 2 passes from inflation inlet and by nut 7 lockings.When needing inflation, the sleeve 12 with protective housing 8 takes off from gun joint 3 earlier, makes the aperture of endoporus 5 open, then the muzzle of filling gun is aimed at gun joint 3, and the clip on the promotion filling gun clamps the draw-in groove 4 on the gun joint, filling gun can be sleeved on the gun joint 3, realizes the aerating operation.After adding gas, the sleeve 12 with protective housing 8 is enclosed within on the gun joint 3 again.

Claims (7)

1. compressed natural gas gas charging valve crossover sub, it is characterized in that: axis body (1) is the stepped shape column structure, the little shaft part of this axis body (1) is valve joint (2), big shaft part is gun joint (3), be provided with the draw-in groove (4) of annular at the periphery wall of described gun joint (3), 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 radially air outlet hole (6) on the 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.
2. compressed natural gas gas charging valve crossover sub as claimed in claim 1 is characterized in that: at the place, aperture of described endoporus (5) an O shape is housed and encloses (10).
3. compressed natural gas gas charging valve crossover sub as claimed in claim 1 or 2 is characterized in that: the air outlet hole (6) on the described valve joint (2) is radially criss-crossing hole.
4. compressed natural gas gas charging valve crossover sub as claimed in claim 3, it is characterized in that: described valve joint (2) has a pair of annular groove at the axis body on air outlet hole (6) both sides, and the 2nd O shape circle (11) all is housed in each annular groove.
5. as claim 1 or 2 or 4 described compressed natural gas gas charging valve crossover subs, it is characterized in that: milling has a pair of platform about the axle center symmetry (9) on the axial wall of described gun joint (3), and this is to the draw-in groove (4) on the close gun joint (3) of platform (9).
6. compressed natural gas gas charging valve crossover sub as claimed in claim 5, it is characterized in that: described gun joint (3) is 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 ends, second sidewall of protective housing (8) is close to the end face of gun joint (3) the other end, and the aperture of endoporus (5) is sealed; Described protective housing (8) second inside surface of side wall are extended 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), inwall at described sleeve (12) is formed with pair of projections, and this is stuck on the corresponding platform (9) of gun joint (3) boss.
7. compressed natural gas gas charging valve crossover sub as claimed in claim 6, it is characterized in that: described protective housing (8) is made by the EVA material.
CN 201320160878 2013-04-02 2013-04-02 Conversion joint for compressed natural gas charging valve Withdrawn - After Issue CN203190034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320160878 CN203190034U (en) 2013-04-02 2013-04-02 Conversion joint for compressed natural gas charging valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320160878 CN203190034U (en) 2013-04-02 2013-04-02 Conversion joint for compressed natural gas charging valve

Publications (1)

Publication Number Publication Date
CN203190034U true CN203190034U (en) 2013-09-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320160878 Withdrawn - After Issue CN203190034U (en) 2013-04-02 2013-04-02 Conversion joint for compressed natural gas charging valve

Country Status (1)

Country Link
CN (1) CN203190034U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196036A (en) * 2013-04-02 2013-07-10 力帆实业(集团)股份有限公司 CNG (Compressed Natural Gas) inflation valve conversion joint
CN108930910A (en) * 2017-05-23 2018-12-04 陕西重型汽车有限公司 CNG fuel gas vehicle aerating mode conversion equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196036A (en) * 2013-04-02 2013-07-10 力帆实业(集团)股份有限公司 CNG (Compressed Natural Gas) inflation valve conversion joint
CN103196036B (en) * 2013-04-02 2014-10-29 力帆实业(集团)股份有限公司 CNG (Compressed Natural Gas) inflation valve conversion joint
CN108930910A (en) * 2017-05-23 2018-12-04 陕西重型汽车有限公司 CNG fuel gas vehicle aerating mode conversion equipment

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GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20130911

Effective date of abandoning: 20141029

RGAV Abandon patent right to avoid regrant