CN203023506U - Natural gas pressure reducer for vehicle - Google Patents
Natural gas pressure reducer for vehicle Download PDFInfo
- Publication number
- CN203023506U CN203023506U CN 201220710273 CN201220710273U CN203023506U CN 203023506 U CN203023506 U CN 203023506U CN 201220710273 CN201220710273 CN 201220710273 CN 201220710273 U CN201220710273 U CN 201220710273U CN 203023506 U CN203023506 U CN 203023506U
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- CN
- China
- Prior art keywords
- valve body
- natural gas
- regulating valve
- gas used
- valve stem
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- 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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Abstract
The utility model discloses a natural gas pressure reducer for a vehicle. The natural gas pressure reducer for the vehicle comprises a valve body; the valve body is provided with a gas inlet and a gas outlet, and is internally provided with a valve assembly; the gas inlet is communicated with the gas outlet through the valve assembly; the valve assembly comprises a normally opened gas intake component and a resetting component; the normally opened gas intake component comprises a regulating valve rod which is provided with a circular truncated cone; the valve body is provided with a circular truncated cone corresponding to the conical surface of the regulating valve rod; the resetting component comprises an elastic membrane sheet; and one end of the regulating valve rod is fixedly connected with the membrane sheet. The natural gas pressure reducer for the vehicle is simple, reliable and compact in structure, is small and exquisite in appearance, and can reduce pressure in an intermittent air intake mode so as to achieve a stable pressure reduction effect.
Description
Technical field
The utility model relates to a kind of natural gas used for automobile decompressor.
Background technique
Existing vehicle fuel decompressor mostly is one-level decompressor or second depressurized device.What the one-level decompressor adopted is the structure of diaphragm lever formula, the unsettled characteristics of the delivery pressure of existence; The second depressurized device reaches the stable purpose of delivery pressure by twice decompression to gas, and because complex structure, the cost of production of second depressurized device are high, volume is larger in addition, is not easy to install, and causes the second depressurized device to safeguard and use comparatively trouble.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of simple in structure, natural gas used for automobile decompressor that volume is small and exquisite.
for solving the problems of the technologies described above, the utility model adopts following technological scheme: this natural gas used for automobile decompressor comprises valve body, described valve body is provided with suction port, the air outlet, described valve inner is provided with valve assembly, described suction port is communicated with the air outlet by valve assembly, described valve assembly comprises and often drives pneumatic module and reset assembly into, the described pneumatic module that often drives into comprises regulating valve stem, described regulating valve stem is provided with round table surface, described valve body is provided with the round table surface of the conical surface of corresponding regulating valve stem, described reset assembly comprises flexible sheet, one end of described regulating valve stem is fixedly connected on diaphragm.
In this scheme after air inlet the gas push flexible sheet to the motion of the little direction of air pressure, cause flexible sheet to pull regulating valve stem.There is relative round table surface due between regulating valve stem and valve body, connect therefore will form hermetic seal at the round table surface place when both combine, and then isolated gas passes into.Treat that gas exports from the air outlet, make the pressure difference of the diaphragm both sides Descemets membrane sheet that diminishes reset, regulating valve stem is connected disappearance with hermetic seal between valve body, thus again can air inlet, then repeat above-mentioned movement process.Therefore this natural gas used for automobile decompressor is realized decompression with the intermittent type intake method, has formed a kind of transformation effect of frequency conversion gas transmission.
As of the present utility model preferred, on described regulating valve stem, cover has nylon valve pocket, described nylon valve to put to be provided with round table surface.Can strengthen like this hermetic seal contiguity between regulating valve stem and valve body, reach better hermetic seal effect.Simultaneously, can extend the working life of regulating valve stem.
As of the present utility model preferred, the described regulating valve stem the other end is connected with valve body by the Returnning spring I.This Returnning spring plays buffer function, avoids regulating valve stem to clash into valve body when resetting.
As of the present utility model preferred, this end that described regulating valve stem is connected with the Returnning spring I also is connected with valve seal by seal ring.It is in order to guarantee that regulating valve stem remains on same straight line in the to-and-fro motion process that regulating valve stem is limited on valve body by seal ring.
As of the present utility model preferred, be connected by the Returnning spring II between described diaphragm one side and valve body.This is in order to increase the bearing capacity of diaphragm, to be avoided gas pressure excessive to the diaphragm injury.
As of the present utility model preferred, be connected by inner lid between described diaphragm opposite side and valve body.In the lid effect be in order to play the effect of damping, be that diaphragm is unlikely to fierce distortion under draught head.
As of the present utility model preferred, cover in described and be provided with damping hole.This damping hole is in order better to play damping, to make diaphragm with certain speed generation deformation.
The utility model adopts technique scheme: the natural gas used for automobile decompressor is simple in structure, reliable, compact, and profile is small and exquisite, and it realizes decompression with the intermittent type intake method, obtains thus stable effect of easing stress.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.
Fig. 1 is the structural representation of a kind of natural gas used for automobile decompressor of the utility model.
Embodiment
As shown in Figure 1, this natural gas used for automobile decompressor comprises valve body 1, solenoid valve 2.The interior position of valve body 1 hollow structure, valve body 1 is provided with suction port and air outlet; Be provided with valve assembly in valve body 1 inside, this valve assembly comprises and often drives pneumatic module and reset assembly into.Often drive pneumatic module into and comprise regulating valve stem 3 and Returnning spring I 4.Be provided with regulating valve seat 5 in valve body 1 inside, regulating valve seat 5 is sealedly connected on valve body 1 and with valve body 1 and forms one.Be provided with through hole in regulating valve seat 5, regulating valve seat 5 is provided with round table surface at an end of through hole.Regulating valve stem 3 is the reducing structure, and the two ends diameter is less than the diameter of intermediate portion.The intermediate portion of regulating valve stem 3 is round table-like, and the outside is provided with nylon valve pocket 6, is fixedly connected with between this nylon valve pocket 6 and regulating valve stem 3.Nylon valve pocket 6 also is round table-like profile with the shape of regulating valve stem 3 intermediate portions, and the surface is provided with round table surface.After regulating valve seat 5 is fixed on valve body 1, form air-inlet cavity 7 between it and valve body 1, regulating valve stem 3 is arranged in air-inlet cavity 7, and the round table surface on the round table surface of cotton garment and regulating valve seat 5 is corresponding relation, and this relation can allow both form afterwards the annexation of hermetic seal in contact.Regulating valve stem 3 one ends pass regulating valve seat 5, and the other end is embedded on valve body 1 and by seal ring and valve body 1 and is tightly connected.Regulating valve stem 3 is provided with flange, and Returnning spring I 4 is limited between regulating valve stem 3 and valve body 1, saves thus valve rod and is connected with valve body 1 by Returnning spring I 4.Reset assembly comprises diaphragm 8, Returnning spring II 9 and Li Gai 10.Diaphragm 8 is arranged on valve body 1 inside, it with valve body 1 between be in hermetic seal and be connected, form buffering air cavity 11 between diaphragm 8 and valve body 1.Returnning spring II 9 is positioned at buffering air cavity 11, and an end of Returnning spring II 9 contacts with diaphragm 8, and the other end contacts with valve body 1 by spring seat.Valve body 1 is provided with vacuum and takes over, and this vacuum is taken over buffering air cavity 11 and is communicated with.During work, vacuum connects the outer low pressure pipeline.The other end of regulating valve stem 3 is fixed on diaphragm 8, and under nature, diaphragm 8 pushes away regulating valve stem 3 to valve body 1 outside direction, and then nylon valve pocket 6 is separated with regulating valve seat 5, makes to regulate valve pocket and be communicated with air-inlet cavity 7 with decompression air cavity 12 between diaphragm 8.In lid 10 be fixed on valve body 1, it also is set with on regulating valve stem 3, is tightly connected between inner lid 10 and valve body 1.In have the gap between lid 10 and regulating valve stem 3, therefore the space between diaphragm 8 and inner lid 10 and Li Gai 10 are communicated with space between regulating valve seat 5; And in lid also be provided with tiny damping hole on 10, damping hole is through-hole structure, runs through whole inner lid 10, further makes space between diaphragm 8 and inner lid 10 and Li Gai 10 be communicated with space between regulating valve seat 5.
Under nature, air-inlet cavity 7 is communicated with decompression air cavity 12, and decompression air cavity 12 is isolated with buffering air cavity 11.Solenoid valve 2 is arranged on valve body 1, controls the connected relation of suction port and air-inlet cavity 7; The air outlet is communicated with decompression air cavity 12.During work, solenoid valve 2 is opened, and makes the pressurized gas that are positioned at the suction port place flow to air-inlet cavity 7, and pressurized gas are through entering decompression air cavity 12 after air-inlet cavity 7.Air pressure in decompression air cavity 12 slowly increases, and pressurized gas are collected in decompression air cavity 12, and portion gas is outwards exported from the air outlet simultaneously.After decompression air cavity 12 air pressure increased, 8 motions of gas push diaphragm made the space of buffering air cavity 11 dwindle gradually; Simultaneously, diaphragm 8 pulls regulating valve stem 3, impels nylon valve pocket 6 and regulating valve seat 5 to produce annexation.Because the round table surface on nylon valve pocket 6 is identical with round table surface on regulating valve seat 5, therefore contacting the back, both have suddenly reduced the connected relation of air-inlet cavity 7 with decompression air cavity 12, make at last air-inlet cavity 7 isolated with decompression air cavity 12.At this moment, the gas that is deposited in decompression air cavity 12 is still outwards carried, and simultaneously, air pressure reduces gradually, diaphragm 8 beginning reversing motions, and the space of buffering air cavity 11 begins to return to the size of nature.
Pressure reduction forces diaphragm 8 motions, but this movement process very relaxes, this is because the gas flow flux in the space between the space between diaphragm 8 and Li Gai 10 and inner lid 10 and regulating valve seat 5 is less, make diaphragm 8 reversing motions be subject to certain resistance, formed thus damped motion during diaphragm 8 reversing motion.
After diaphragm 8 reversing motions, regulating valve stem 3 and company's sealing of regulating between valve pocket connect the relation termination, and air-inlet cavity 7 continues to be communicated with decompression air cavity 12, and the pressurized gas that are positioned at air-inlet cavity 7 continue to pass into decompression air cavity 12, then repeat the above-mentioned gas output procedure.
Claims (7)
1. natural gas used for automobile decompressor, described natural gas used for automobile decompressor comprises valve body (1), described valve body (1) is provided with suction port, the air outlet, described valve body (1) inside is provided with valve assembly, described suction port is communicated with the air outlet by valve assembly, it is characterized in that: described valve assembly comprises and often drives pneumatic module and reset assembly into, the described pneumatic module that often drives into comprises regulating valve stem (3), described regulating valve stem (3) is provided with round table surface, described valve body (1) is provided with the round table surface of the conical surface of corresponding regulating valve stem (3), described reset assembly comprises flexible sheet (8), one end of described regulating valve stem (3) is fixedly connected on diaphragm (8).
2. natural gas used for automobile decompressor according to claim 1, it is characterized in that: the upper cover of described regulating valve stem (3) has nylon valve pocket (6), and described nylon valve pocket (6) is provided with round table surface.
3. natural gas used for automobile decompressor according to claim 1, it is characterized in that: described regulating valve stem (3) the other end is connected with valve body (1) by Returnning spring I (4).
4. natural gas used for automobile decompressor according to claim 3, it is characterized in that: this end that described regulating valve stem (3) is connected with Returnning spring I (4) also is tightly connected by seal ring and valve body (1).
5. natural gas used for automobile decompressor according to claim 1 is characterized in that: be connected by Returnning spring II (9) between described diaphragm (8) one sides and valve body (1).
6. natural gas used for automobile decompressor according to claim 1 is characterized in that: be connected by inner lid (10) between described diaphragm (8) opposite side and valve body (1).
7. natural gas used for automobile decompressor according to claim 1, it is characterized in that: described inner lid (10) is provided with damping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710273 CN203023506U (en) | 2012-12-20 | 2012-12-20 | Natural gas pressure reducer for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710273 CN203023506U (en) | 2012-12-20 | 2012-12-20 | Natural gas pressure reducer for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023506U true CN203023506U (en) | 2013-06-26 |
Family
ID=48647493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220710273 Expired - Fee Related CN203023506U (en) | 2012-12-20 | 2012-12-20 | Natural gas pressure reducer for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578593A (en) * | 2018-12-11 | 2019-04-05 | 合肥市久环给排水燃气设备有限公司 | A kind of high-pressure gas pressure regulator |
-
2012
- 2012-12-20 CN CN 201220710273 patent/CN203023506U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578593A (en) * | 2018-12-11 | 2019-04-05 | 合肥市久环给排水燃气设备有限公司 | A kind of high-pressure gas pressure regulator |
| CN109578593B (en) * | 2018-12-11 | 2023-10-27 | 合肥市久环给排水燃气设备有限公司 | High-pressure gas pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI EXON POWER SYSTEM CO., LTD. Free format text: FORMER OWNER: JIAXING XINGKAI TECHNOLOGY CO., LTD. Effective date: 20150211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 314001 JIAXING, ZHEJIANG PROVINCE TO: 201612 SONGJIANG, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150211 Address after: 201612 Shanghai City, Songjiang Caohejing Songjiang District hi tech park Xinzhuan Highway No. 258, building 40, Room 302 Patentee after: SHANGHAI E-XON POWER SYSTEM CO., LTD. Address before: Jiaxing City, Zhejiang province 314001 South Road No. 1369 Building 8 Room 205 Branch Center Patentee before: Jiaxing Xingkai Technology Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160315 Address after: Room 314001, Central Plaza (East Side), Nanhu District, Zhejiang City, Jiaxing province A-1503 Patentee after: Jiaxing E-Xon Power System Co., Ltd. Address before: 201612 Shanghai City, Songjiang Caohejing Songjiang District hi tech park Xinzhuan Highway No. 258, building 40, Room 302 Patentee before: SHANGHAI E-XON POWER SYSTEM CO., LTD. |
|
| 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: 20130626 Termination date: 20171220 |