CN201462246U - High-pressure pipe connecting structure in CNG automobile - Google Patents
High-pressure pipe connecting structure in CNG automobile Download PDFInfo
- Publication number
- CN201462246U CN201462246U CN2009201275699U CN200920127569U CN201462246U CN 201462246 U CN201462246 U CN 201462246U CN 2009201275699 U CN2009201275699 U CN 2009201275699U CN 200920127569 U CN200920127569 U CN 200920127569U CN 201462246 U CN201462246 U CN 201462246U
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- CN
- China
- Prior art keywords
- cng
- voltage tube
- pressure pipe
- locking nut
- component joints
- 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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Abstract
The utility model relates to a high-pressure pipe connecting structure in a CNG automobile. A counter bore is formed in the connecting end of a CNG component joint; internal threads are formed on the wall of the counter bore; external threads are formed on a lock nut; the lock nut is sleeved on a high-pressure pipe; the front end of the high-pressure pipe is inserted into the counter bore of the CNG component joint; a positioning end surface is arranged at the front end of the high-pressure pipe; the lock nut is screwed into the counter bore of the CNG component joint through the threads; and the front end surface of the lock nut acts on the positioning end surface of the high-pressure pipe to ensure that the front end surface of the high-pressure pipe compresses at the counter bore step of the CNG component joint. The utility model has the advantages that firstly, the high-pressure pipe can not be withdrawn without loosening the lock nut, so that the withdraw of the high-pressure pipe after connection is barely influenced by external factors; secondly, the sealing of the joint of the high-pressure pipe and the CNG component joint is decided by the tightening level of the lock nut, thereby realizing easy mastery and control, and thirdly, a sleeve is eliminated and the structure is simplified, thereby reducing the cost.
Description
Technical field
The utility model relates to the linkage structure of a kind of CNG automobile high-voltage tube and CNG component joints.
Background technique
CNG (compressed natural gas) automobile need be transported to CNG and use the gas position from the device (as steel cylinder) of storing CNG.Carrying the pipe of CNG is high-voltage tube, and high-voltage tube is connected with steel cylinder by the CNG component joints, and promptly high-voltage tube is connected with the CNG component joints, and the CNG component joints is connected with steel cylinder again.The linkage structure of the high-voltage tube of present domestic CNG automobile and CNG component joints as shown in Figure 1, the connecting end outer wall of CNG component joints 2 is provided with outside thread, be provided with vent 4 in the CNG component joints 2, CNG can be transported to high-voltage tube 1 by this vent 4, one end of this vent 4 is a horn mouth, this end links to each other with the connecting end of high-voltage tube 1, connecting end at high-voltage tube 1 is with lining 10 and locking nut 3, the connecting end of high-voltage tube 1 inserts in the horn mouth of vent 4, locking nut 3 is rotatably connected on CNG component joints 2 outside threads, and the front end of lining 10 then is clamped between CNG component joints 2 horn mouths and the high-voltage tube 1.
Screw locking nut, thereby lining is pushed in the CNG component joints, along with locking nut is further rotated, lining is producing plastic deformation with CNG component joints and high-voltage tube contacting point, thereby realize sealing in distortion place, utilize the lining inside and outside wall to realize being connected of high-voltage tube and CNG component joints simultaneously with the frictional force of high-voltage tube and CNG component joints.The advantage of this Placement is that the high-voltage tube head need not specially be processed, so by repacking field extensive use.Shortcoming is that the degree of depth that pipe inserts depends on personal factor fully, and insertion depth is shallow excessively, and the head of pipe is caused the ventilation cross section to diminish by lining extruding back distortion; Even more serious is that high-voltage tube is subjected to withdraw from easily after the extraneous factor, has hidden danger of quality, and therefore this Placement is prohibited in ECE R110 international standard.
The model utility content
At the prior art above shortcomings, the purpose of this utility model is to provide a kind of reliable, CNG automobile high-voltage tube linkage structure of being difficult for withdrawing from and not influencing Throughput easy to connect.
The purpose of this utility model is achieved in that CNG automobile high-voltage tube linkage structure, comprise high-voltage tube, CNG component joints and locking nut, it is characterized in that: be provided with counterbore in the described CNG component joints connecting end, the counterbore wall is provided with internal thread, locking nut is provided with the outside thread corresponding with this internal thread, locking nut is placed on the high-voltage tube, the high-voltage tube front end inserts in the CNG component joints counterbore, the high-voltage tube front end is provided with the location end face, locking nut is by being threaded in the CNG component joints counterbore, and the locking nut front-end face acts on the end face of high-voltage tube location the high-voltage tube front-end face is pressed on the CNG component joints counterbore step.
Further, have the pyramidal projections towards high-voltage tube on the described CNG component joints counterbore step, high-voltage tube is provided with the horn mouth corresponding with this pyramidal projections, and horn mouth is enclosed within on the pyramidal projections.
The utility model links together high-voltage tube and CNG component joints by locking nut, and process mesohigh pipe that locking nut screws and CNG component joints both ends of the surface are combined closely, and realizes sealing thus.
Compared to existing technology, advantage of the present utility model is:
1, because the high-voltage tube front end is provided with the location end face, do not unclamp locking nut, high-voltage tube can not withdraw from, and promptly connecting withdrawing from of back high-voltage tube, influenced by extraneous factor very little;
2, the seal degree of high-voltage tube and CNG component joints joint is easily grasped and is controlled by the degree of tightness decision of locking nut.Pyramidal projections direction on the step is just in time consistent by direction with pressurized gas, and sealability further is guaranteed;
3, the utility model has been cancelled lining, simplifies the structure, and cost is reduced.
Description of drawings
Fig. 1-prior art structural representation;
Fig. 2-the utility model structural representation.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 2, from the figure as can be seen, CNG automobile high-voltage tube linkage structure of the present utility model, comprise high-voltage tube 1, CNG component joints 2 and locking nut 3, CNG component joints 2 is provided with vent 4, utilize this vent in the connecting end of CNG component joints, to be provided with counterbore 5, counterbore 5 walls are provided with internal thread, locking nut 3 is provided with the outside thread corresponding with this internal thread, locking nut 3 is placed on the high-voltage tube 1, high-voltage tube 1 front end inserts in the CNG component joints counterbore 5, high-voltage tube 1 front end is provided with location end face 6, locking nut 3 is by being threaded in the CNG component joints counterbore 5, and locking nut 3 front-end faces act on the end face 6 of high-voltage tube location high-voltage tube 1 front-end face is pressed on the CNG component joints counterbore step 7.
Further, have the pyramidal projections 8 towards high-voltage tube on the described CNG component joints counterbore step 7, high-voltage tube 1 is provided with the horn mouth corresponding with this pyramidal projections 9, and horn mouth 9 is enclosed within on the pyramidal projections 8.Promote high-voltage tube horn mouth 9 in the process that locking nut 3 is tightened and press to pyramidal projections 8, by the closely cooperate realization reliable sealing of horn mouth 9 with pyramidal projections 8.Pyramidal projections 8 directions are just in time consistent by direction with pressurized gas, and sealability further is guaranteed.
The utility model links together high-voltage tube and CNG component joints by locking nut, and process mesohigh pipe that locking nut screws and CNG component joints both ends of the surface are combined closely, and realizes sealing thus.
Claims (2)
1.CNG automobile high-voltage tube linkage structure, comprise high-voltage tube (1), CNG component joints (2) and locking nut (3), it is characterized in that: be provided with counterbore (5) in described CNG component joints (2) connecting end, the counterbore wall is provided with internal thread, locking nut (3) is provided with the outside thread suitable with this internal thread, locking nut (3) is placed on the high-voltage tube (1), high-voltage tube (1) front end inserts in the CNG component joints counterbore (5), high-voltage tube (1) front end is provided with location end face (6), locking nut (3) is by being threaded in the CNG component joints counterbore (5), and locking nut (3) front-end face acts on the high-voltage tube location end face (6) the high-voltage tube front-end face is pressed on the CNG component joints counterbore step.
2. CNG automobile high-voltage tube linkage structure according to claim 1, it is characterized in that: have pyramidal projections (8) on the described CNG component joints counterbore step (7) towards high-voltage tube, high-voltage tube (1) is provided with the horn mouth corresponding with this pyramidal projections (9), and horn mouth (9) is enclosed within on the pyramidal projections (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201275699U CN201462246U (en) | 2009-06-05 | 2009-06-05 | High-pressure pipe connecting structure in CNG automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201275699U CN201462246U (en) | 2009-06-05 | 2009-06-05 | High-pressure pipe connecting structure in CNG automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462246U true CN201462246U (en) | 2010-05-12 |
Family
ID=42389599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201275699U Expired - Fee Related CN201462246U (en) | 2009-06-05 | 2009-06-05 | High-pressure pipe connecting structure in CNG automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673964A (en) * | 2016-04-20 | 2016-06-15 | 扬州良诚汽车部件有限公司 | Oil path sealing device and processing method thereof |
| CN108194734A (en) * | 2018-01-04 | 2018-06-22 | 北京新能源汽车股份有限公司 | A kind of pipeline jointing construction and automobile |
-
2009
- 2009-06-05 CN CN2009201275699U patent/CN201462246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673964A (en) * | 2016-04-20 | 2016-06-15 | 扬州良诚汽车部件有限公司 | Oil path sealing device and processing method thereof |
| CN108194734A (en) * | 2018-01-04 | 2018-06-22 | 北京新能源汽车股份有限公司 | A kind of pipeline jointing construction and automobile |
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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: CHONGQING XIAOKANG AUTOMOBILE GROUP CO., LTD. Free format text: FORMER OWNER: CHONGQING XIAOKANG AUTOMOBILE INDUSTRY (GROUP) CO., LTD. Effective date: 20110330 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400033 NO. 2, JINGXI ROAD, JINGKOU TOWN, SHAPINGBA DISTRICT, CHONGQING CITYTO: 400037 NO. 61-1, JINQIAO ROAD, SHAPINGBA DISTRICT, CHONGQING CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110330 Address after: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing Patentee after: Chongqing Sokon Automobile Group Co., Ltd. Address before: 400033, No. 2 ho Xi Road, wellhead Town, Shapingba District, Chongqing Patentee before: Chongqing Xiaokang Automotive Industry (Group) Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dongfeng Xiaokang Motor Co., Ltd. Assignor: Chongqing Xiaokang Industry Group Co., Ltd. Contract record no.: 2011500000044 Denomination of utility model: High-pressure pipe connecting structure in CNG automobile Granted publication date: 20100512 License type: Exclusive License Record date: 20110707 |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING SOKON INDUSTRY GROUP CO., LTD. Free format text: FORMER NAME: CHONGQING SOKON AUTOMOBILE GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing Patentee after: Chongqing Xiaokang Industry Group Co., Ltd. Address before: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing Patentee before: Chongqing Sokon Automobile Group Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG SOKON MOTOR COMPANY LIMITED, CHONGQING BR Free format text: FORMER OWNER: CHONGQING XIAOKANG INDUSTRY GROUP CO., LTD. Effective date: 20121022 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400037 SHAPINGBA, CHONGQING TO: 402260 JIANGJIN, CHONGQING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121022 Address after: 402260 Jiujiang Road, Jiangjin District, Chongqing Patentee after: CHONGQING BRANCH, DFSK AUTOMOBILE CO., LTD. Address before: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing Patentee before: Chongqing Xiaokang Industry Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20150605 |
|
| EXPY | Termination of patent right or utility model |