CN204553952U - A kind of gas charging valve - Google Patents
A kind of gas charging valve Download PDFInfo
- Publication number
- CN204553952U CN204553952U CN201520200091.3U CN201520200091U CN204553952U CN 204553952 U CN204553952 U CN 204553952U CN 201520200091 U CN201520200091 U CN 201520200091U CN 204553952 U CN204553952 U CN 204553952U
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- CN
- China
- Prior art keywords
- valve
- cavity
- gas charging
- duct
- gas
- 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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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
A kind of gas charging valve, comprise valve body, described valve body is provided with gas ducting, gas ducting sidewall is communicated with cavity one through inlet air pathway, the sidewall of cavity one is communicated with outlet pipe two with outlet pipe one with duct two respectively through duct one, be provided with one-way valve one in described cavity one, the opening portion of cavity one is provided with end cap, and described end cap is provided with the outlet valve for isolated cavity one and gas charging valve outside; It is characterized in that: described inlet air pathway comprises duct three, cavity two and duct four, in described cavity two, be provided with one-way valve two.The beneficial effects of the utility model: owing to turn increasing the one-way valve that prevents Leakage Gas on the basis of original structure, and this worry is sent out, and to have structure simple, and there will not be aging, the phenomenon such as to come off so just prevents leaking of combustion gas further, thus adds Security.
Description
Technical field
The utility model relates to vehicle air supply system field, is specifically related to a kind of gas charging valve for vehicle make-up gas fuel.
Background technique
Vehicle-mounted natural gas supply system comprises gas holder, and gas holder is engine with fuel gas by delivery line, and conveyance conduit is provided with gas charging valve, thinks gas holder make-up examination fuel gas.The applying date is 2012.11.15 day, application number utility model patent gas charging valve disclosed in 2012206042593 is provided with a cavity in gas fill port, the one-way valve preventing gaseous fuel from leaking outside is provided with in cavity, one-way valve comprises check valve body, spherical valve core and is arranged at bottom check valve body and keeps bubble-tight rubber seal, but the aging of rubber can be caused in long-term use, be out of shape and come off; Thus cause leaking of gas, there is potential safety hazard.
Model utility content
It is simple that the purpose of this utility model is to provide a kind of structure, and a nearlyer step prevents combustion gas from leaking outside and increases the one-way valve of Security.
The utility model is the technological scheme solving the problems of the technologies described above employing: a kind of gas charging valve, comprise valve body, described valve body is provided with gas ducting, gas ducting sidewall is communicated with cavity one through inlet air pathway, the sidewall of cavity one is communicated with outlet pipe two with outlet pipe one with duct two respectively through duct one, be provided with one-way valve one in described cavity one, the opening portion of cavity one is provided with end cap, and described end cap is provided with the outlet valve for isolated cavity one and gas charging valve outside; Described inlet air pathway comprises duct three, cavity two and duct four, is provided with one-way valve two in described cavity two.
As optimization: described one-way valve two comprises the annular protrusion that circumferential cavity two inside is stretched into along air outlet, duct three one, the sidewall thickness of described projection is reduced to one end of giving vent to anger gradually by air inlet one end, described one-way valve two also comprises the spool be located in cavity two, cavity two opening portion is provided with valve gap two, be provided with spring two between spool and valve gap two, valve gap two is positioned at cavity two opening portion and is also provided with seal ring two.
As optimization: described spool is nylon material and is cylindrical structural.
As optimization: the cross section of described annular protrusion is trapezium structure.
As optimization: described one-way valve two also comprises filter screen, described filter screen is the cup-like structure of one end open, and described annular protrusion, spool and spring two is enclosed in filter screen chamber.
As optimization: described one-way valve one comprises the check valve body in mating connection with cavity one inwall, described check valve body interior bore is provided with spherical valve core and spherical valve core is positioned at the air inlet end of one-way valve one, described one-way valve one exhaust end is provided with the valve gap one matched with check valve body, be provided with air outlet hole in the middle part of described valve gap one, between described spherical valve core and valve gap one, be provided with spring one; Described check valve body is that a pipe is formed, and position corresponding with duct one and duct two on this pipe wall offers through hole respectively, is provided with the seal ring one carrying out with check valve body lower end surface and spherical valve core outer circumferential face being sealed and matched in described body.
As optimization: described outlet valve comprises threaded stem, described threaded stem is provided with exhaust passageway, one end that described threaded stem is positioned at cavity one inside is provided with round platform, described exhaust passageway comprises the section of vestibule always that threadingly club body is axially offered, the two ends of described straight hole chamber section respectively threadingly bar radially outward offer first, two auxiliary holes, described first, two auxiliary holes form air intake and the air outlet of exhaust dead circuit, described first auxiliary hole is positioned at the threaded stem figure of gas charging valve outside, second auxiliary hole is arranged near position with round platform, first, spacing between two auxiliary holes is greater than the hole depth of the tapped hole matched with threaded stem that end cap is offered.
As optimization: described round platform and the end cap madial wall place of fitting are provided with Sealing, and the end that described threaded stem extends to gas charging valve outside arranges rotatable handle.
The beneficial effects of the utility model: owing to turn increasing the one-way valve that prevents Leakage Gas on the basis of original structure, and this worry is sent out, and to have structure simple, and there will not be aging, the phenomenon such as to come off so just prevents leaking of combustion gas further, thus adds Security.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing gas charging valve;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of one-way valve one of the present utility model;
Fig. 4 is exhaust structure schematic diagram of the present utility model.
Embodiment
As shown in Fig. 2,3 and 4, a kind of gas charging valve, comprise valve body 1, valve body 1 is provided with gas ducting 2, gas ducting 2 sidewall is communicated with cavity 1 through inlet air pathway, and the sidewall of cavity 1 is communicated with outlet pipe 27 with outlet pipe 1 with duct 25 respectively through duct 1, is provided with one-way valve 1 in cavity 1, the opening portion of cavity 1 is provided with end cap 8, and end cap 8 is provided with the outlet valve 9 for isolated cavity 1 and gas charging valve outside; Above-mentioned inlet air pathway comprises duct 3 15, cavity 2 10 and duct 4 16, is provided with one-way valve two in described cavity 2 10; One-way valve two comprises the annular protrusion 11 that circumferential cavity 2 10 inside is stretched into along air outlet, duct 3 15 one, the described sidewall thickness of protruding 11 is reduced to one end of giving vent to anger gradually by air inlet one end, described one-way valve two also comprises the spool 12 be located in cavity 2 10, cavity 2 10 opening portion is provided with valve gap 2 14, be provided with spring 2 13 between spool 12 and valve gap 2 14, valve gap 2 14 is positioned at cavity 2 10 opening portion and is also provided with seal ring 2 17;
Above-mentioned one-way valve 1 comprises the check valve body 21 in mating connection with cavity 1 inwall, described check valve body 21 interior bore is provided with spherical valve core 22 and spherical valve core 22 is positioned at the air inlet end of one-way valve 1, described one-way valve 1 exhaust end is provided with the valve gap 1 matched with check valve body 21, be provided with air outlet hole in the middle part of described valve gap 1, between described spherical valve core 22 and valve gap 1, be provided with spring 1; Described check valve body 21 is that a pipe is formed, position corresponding with duct 1 and duct 25 on this pipe wall offers through hole (211 respectively, 212) seal ring 1 carrying out with check valve body 21 lower end surface and spherical valve core 22 outer circumferential face being sealed and matched, is provided with in described body;
Above-mentioned outlet valve 9 comprises threaded stem 95, threaded stem 95 is provided with exhaust passageway, one end that threaded stem 95 is positioned at cavity 1 inside is provided with round platform 91, above-mentioned exhaust passageway comprises the section of vestibule always 94 that threadingly bar 95 shaft is axially offered, the two ends of straight hole chamber section 94 respectively threadingly bar radially outward offer first, two auxiliary holes (93, 92), described first, two auxiliary holes (93, 92) air intake and the air outlet of exhaust dead circuit is formed, described first auxiliary hole 93 is positioned at threaded stem 95 figure of gas charging valve outside, second auxiliary hole 92 is arranged near position with round platform 91, first, two auxiliary holes (93, 92) spacing between is greater than the hole depth of the tapped hole matched with threaded stem 95 that end cap 8 is offered,
Above-mentioned round platform 91 is provided with Sealing with the end cap 8 madial wall place of fitting, and the end that described threaded stem 95 extends to gas charging valve outside arranges rotatable handle.
Above-mentioned spool 12 can be nylon material, and structure can be cylindrical structural.
The cross section of above-mentioned annular protrusion 11 can be trapezium structure.
Due to charge gun Long-Time Service, in order to prevent the rubber ring on charge gun due to aging come off to enter in valve body cause gas leakage, above-mentioned one-way valve two also comprises filter screen 18, described filter screen 18 is the cup-like structure of one end open, and described annular protrusion 11, spool 12 and spring 2 13 are enclosed in filter screen 18 chamber.
Claims (9)
1. a gas charging valve, comprise valve body, described valve body is provided with gas ducting, gas ducting sidewall is communicated with cavity one through inlet air pathway, the sidewall of cavity one is communicated with outlet pipe two with outlet pipe one with duct two respectively through duct one, be provided with one-way valve one in described cavity one, the opening portion of cavity one is provided with end cap, and described end cap is provided with the outlet valve for isolated cavity one and gas charging valve outside; It is characterized in that: described inlet air pathway comprises duct three, cavity two and duct four, in described cavity two, be provided with one-way valve two.
2. a kind of gas charging valve according to claim 1, it is characterized in that: described one-way valve two comprises the annular protrusion that circumferential cavity two inside is stretched into along air outlet, duct three one, the sidewall thickness of described projection is reduced to one end of giving vent to anger gradually by air inlet one end, described one-way valve two also comprises the spool be located in cavity two, cavity two opening portion is provided with valve gap two, be provided with spring two between spool and valve gap two, valve gap two is positioned at cavity two opening portion and is also provided with seal ring two.
3. a kind of gas charging valve according to claim 2, is characterized in that: described spool is nylon material and is cylindrical structural.
4. a kind of gas charging valve according to claim 2, is characterized in that: the cross section of described annular protrusion is trapezium structure.
5. the gas charging valve according to claim 2,3 or 4, is characterized in that: described one-way valve two also comprises filter screen.
6. gas charging valve according to claim 5, is characterized in that: filter screen is the cup-like structure of one end open, and described annular protrusion, spool and spring two is enclosed in filter screen chamber.
7. a kind of gas charging valve according to claim 1, it is characterized in that: described one-way valve one comprises the check valve body in mating connection with cavity one inwall, described check valve body interior bore is provided with spherical valve core and spherical valve core is positioned at the air inlet end of one-way valve one, described one-way valve one exhaust end is provided with the valve gap one matched with check valve body, be provided with air outlet hole in the middle part of described valve gap one, between described spherical valve core and valve gap one, be provided with spring one; Described check valve body is that a pipe is formed, and position corresponding with duct one and duct two on this pipe wall offers through hole respectively, is provided with the seal ring one carrying out with check valve body lower end surface and spherical valve core outer circumferential face being sealed and matched in described body.
8. gas charging valve according to claim 1, it is characterized in that: described outlet valve comprises threaded stem, described threaded stem is provided with exhaust passageway, one end that described threaded stem is positioned at cavity one inside is provided with round platform, described exhaust passageway comprises the section of vestibule always that threadingly club body is axially offered, the two ends of described straight hole chamber section respectively threadingly bar radially outward offer first, two auxiliary holes, described first, two auxiliary holes form air intake and the air outlet of exhaust dead circuit, described first auxiliary hole is positioned at the threaded stem figure of gas charging valve outside, second auxiliary hole is arranged near position with round platform, first, spacing between two auxiliary holes is greater than the hole depth of the tapped hole matched with threaded stem that end cap is offered.
9. gas charging valve according to claim 8, is characterized in that: described round platform and the end cap madial wall place of fitting are provided with Sealing, and the end that described threaded stem extends to gas charging valve outside arranges rotatable handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200091.3U CN204553952U (en) | 2015-04-07 | 2015-04-07 | A kind of gas charging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200091.3U CN204553952U (en) | 2015-04-07 | 2015-04-07 | A kind of gas charging valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553952U true CN204553952U (en) | 2015-08-12 |
Family
ID=53829063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520200091.3U Expired - Fee Related CN204553952U (en) | 2015-04-07 | 2015-04-07 | A kind of gas charging valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728477A (en) * | 2015-04-07 | 2015-06-24 | 张海平 | Inflation valve |
| CN106235767A (en) * | 2016-08-17 | 2016-12-21 | 喜临门家具股份有限公司 | A kind of air fluidized bed barometric control unit |
-
2015
- 2015-04-07 CN CN201520200091.3U patent/CN204553952U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728477A (en) * | 2015-04-07 | 2015-06-24 | 张海平 | Inflation valve |
| CN106235767A (en) * | 2016-08-17 | 2016-12-21 | 喜临门家具股份有限公司 | A kind of air fluidized bed barometric control unit |
| CN106235767B (en) * | 2016-08-17 | 2018-10-16 | 喜临门家具股份有限公司 | A kind of air bed air pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |