CN202532055U - Spherical pier head structure of high-pressure oil pipe - Google Patents
Spherical pier head structure of high-pressure oil pipe Download PDFInfo
- Publication number
- CN202532055U CN202532055U CN2012201948991U CN201220194899U CN202532055U CN 202532055 U CN202532055 U CN 202532055U CN 2012201948991 U CN2012201948991 U CN 2012201948991U CN 201220194899 U CN201220194899 U CN 201220194899U CN 202532055 U CN202532055 U CN 202532055U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- pressure oil
- pier nose
- locking nut
- spherical
- 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 - Lifetime
Links
- 238000009434 installation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 46
- 210000001331 nose Anatomy 0.000 description 35
- 238000007789 sealing Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 3
- 210000000887 face Anatomy 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a high-pressure oil pipe spherical pier head structure, which comprises a high-pressure oil pipe pier head, a connector body with an inner conical surface and a locking nut for connecting and fixing the high-pressure oil pipe pier head and the connector body, wherein the inner conical surface of the connector body is contacted with the high-pressure oil pipe pier head; the pier head surface contacting with the inner conical surface of the joint body is a spherical surface. The utility model discloses fine assurance the sealed of high pressure fuel pipe tip, need not consider the centering problem of high pressure fuel pipe tip and oil-out during the installation, even if intersect on the straightway space in high pressure fuel pipe both ends, at the in-process of screwing up the nut, the realization that also can be fine is sealed, has made things convenient for oil pipe's installation, has improved the installation effectiveness.
Description
Technical field
The utility model belongs to the engine fuel oil system technical field, is specifically related to the spherical pier nose structure of a kind of high-pressure oil pipe.
Background technique
Current, engine fuel oil system develops to common rail, high pressure direction, and being connected of common rail pipe and oil sprayer be unable to do without high-pressure oil pipe, and the sealing of high-pressure oil pipe end becomes a difficult point of boost in pressure.The structure at high-pressure oil pipe pier nose position is roughly divided two kinds, a kind of not lined structure, and locking nut directly contacts with the high-pressure oil pipe pier nose back side; A kind of lined structure, locking nut contacts with lining.But the sealing means of these two kinds of structures all is the sealing of the conical surface and the conical surface; Conical surface seal is face seal; Sealing effect is poor, and the conical surface and cone match are exigent to neutrality, as far as the spatial form of the strict control point of high-pressure oil pipe coordinate with the assurance high-pressure oil pipe.When high-pressure oil pipe two ends straightway out of plumb or when not parallel, when promptly spatially intersecting, high-pressure oil pipe pier nose axle center is difficult to guarantee coaxial with the axle center of the interface conical surface; In this case; Can have pier nose unbalance stress on every side, sealing effect is bad, oil leakage phenomenon can occur when serious.
Summary of the invention
The technical problem that the utility model will solve is; A kind of spherical high-pressure oil pipe pier nose structure is provided, makes high-pressure oil pipe when installation, easy mounting; Guarantee the sealing of joint, end simultaneously; Even when high-pressure oil pipe two ends straightway is space crossed, utilize the advantage of ball face sealing, can well guarantee the sealing of oil pipe end.
For solving the problems of the technologies described above; The technological scheme that the utility model provides is: the spherical pier nose structure of a kind of high-pressure oil pipe; Comprise with the high-pressure oil pipe pier nose, have the fittings body of inner conical surface and the high-pressure oil pipe pier nose is connected fixing locking nut with fittings body that the inner conical surface of fittings body contacts with the high-pressure oil pipe pier nose; The said pier nose face that contacts with the inner conical surface of fittings body is a sphere.
Said locking nut is connected the high-pressure oil pipe pier nose fixing with fittings body; Be meant that locking nut has inner ball surface; The high-pressure oil pipe pier nose has outer spherical surface, locking nut and fittings body scyewed joint when the inner ball surface of locking nut contacts with the outer spherical surface of high-pressure oil pipe pier nose.
Perhaps, between locking nut and high-pressure oil pipe pier nose, be provided with lining, the surface of contact of lining and high-pressure oil pipe pier nose is the plane; The surface of contact of lining and locking nut is a sphere, locking nut and fittings body scyewed joint.
The utility model changes high-pressure oil pipe pier nose front end into spheric structure, and high-pressure oil pipe pier nose and fittings body are sphere and conical surface seal; The conical surface with nut intracavity changes spheric structure into simultaneously; Seal with buss face that contacts with the nut sphere or pier nose back-end sealing face also change spheric structure into; Nut and lining contacting point or with pier nose back-end sealing face be sphere and ball face sealing; The sealing of two kinds of structures all is the linear sealing form, has guaranteed effective seal.The high-pressure oil pipe pier nose by envelope between fittings body and nut; The sphere of nut intracavity makes the high-pressure oil pipe pier nose that certain rotation can be arranged on the fittings body conical surface; The error that when making and assemble, exists can be remedied, thereby has guaranteed effective contact of sealing surface.
The effect of the utility model is: well guaranteed the sealing of high-pressure oil pipe end; Need not consider the centering problem of high-pressure oil pipe end and oil outlet during installation; Even if the high-pressure oil pipe two ends intersect on the straightway space, in the process of fastening nut, also can well realize sealing; Make things convenient for the installation of oil pipe, improved installation efficiency.
Description of drawings
Fig. 1 is the structural representation of the spherical pier nose lined of a kind of high-pressure oil pipe of the utility model.
Fig. 2 is the not structural representation of lined of the spherical pier nose of a kind of high-pressure oil pipe of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
The spherical pier nose lined of a kind of high-pressure oil pipe structure shown in Figure 1 comprises high-pressure oil pipe pier nose 1, lining 2, nut 3, fittings body 4, and said high-pressure oil pipe pier nose 1 front end is a sphere, and the rear end is the plane; Lining 2 is the plane with the pier nose contact jaw, with nut 3 contact jaws be sphere; Form interference fit between lining 2 and the high-pressure oil pipe outer wall; Nut 3 bore seal faces are sphere, and nut 3 passes through screwed with fittings body 4, during fastening nut 3, and high-pressure oil pipe pier nose 1 front end and fittings body 4 conical surface seals, nut 3 extruding linings 2 form sealing.
The spherical pier nose of a kind of high-pressure oil pipe shown in Figure 2 is the lined structure not; Comprise high-pressure oil pipe pier nose 5, nut 6, fittings body 7, said high-pressure oil pipe pier nose 5 front ends and rear end are sphere, and nut 6 bore seal faces are sphere; Nut 6 passes through screwed with fittings body 7; During fastening nut 6, high-pressure oil pipe pier nose 5 front ends and fittings body 7 conical surface seals, nut 6 extruding high-pressure oil pipe pier noses 5 rear ends form sealing.
Claims (3)
1. the spherical pier nose structure of high-pressure oil pipe comprises the high-pressure oil pipe pier nose, has the fittings body of inner conical surface and the high-pressure oil pipe pier nose is connected fixing locking nut with fittings body, and the inner conical surface of fittings body contacts with the high-pressure oil pipe pier nose; It is characterized in that: the said high-pressure oil pipe pier nose face that contacts with the inner conical surface of fittings body is a sphere.
2. the spherical pier nose structure of high-pressure oil pipe according to claim 1; It is characterized in that: said locking nut is connected the high-pressure oil pipe pier nose fixing with fittings body; Be meant that locking nut has inner ball surface; The high-pressure oil pipe pier nose has outer spherical surface, locking nut and fittings body scyewed joint when the inner ball surface of locking nut contacts with the outer spherical surface of high-pressure oil pipe pier nose.
3. the spherical pier nose structure of high-pressure oil pipe according to claim 1, it is characterized in that: between locking nut and high-pressure oil pipe pier nose, be provided with lining, the surface of contact of lining and high-pressure oil pipe pier nose is the plane; The surface of contact of lining and locking nut is a sphere, locking nut and fittings body scyewed joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201948991U CN202532055U (en) | 2012-05-03 | 2012-05-03 | Spherical pier head structure of high-pressure oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201948991U CN202532055U (en) | 2012-05-03 | 2012-05-03 | Spherical pier head structure of high-pressure oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202532055U true CN202532055U (en) | 2012-11-14 |
Family
ID=47133242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201948991U Expired - Lifetime CN202532055U (en) | 2012-05-03 | 2012-05-03 | Spherical pier head structure of high-pressure oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202532055U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397965A (en) * | 2013-07-04 | 2013-11-20 | 广西玉柴机器股份有限公司 | Engine oil atomizer installation structure |
| CN103410645A (en) * | 2013-07-31 | 2013-11-27 | 杭州奥加汽车零部件制造有限公司 | High-pressure oil pipe for diesel engine |
| CN105156820A (en) * | 2015-09-18 | 2015-12-16 | 南京汽车集团有限公司 | Oil pipe joint-burst test bench connecting device |
| CN106150802A (en) * | 2016-07-29 | 2016-11-23 | 中国北方发动机研究所(天津) | A kind of high pressure seal structure |
| CN108150327A (en) * | 2018-01-11 | 2018-06-12 | 东风商用车有限公司 | Connection structure of oil sprayer and high-pressure oil pipe |
| CN108612935A (en) * | 2018-06-21 | 2018-10-02 | 江苏腾驰科技有限公司 | A kind of secondary sealer for automobile engine mesohigh pipeline |
| CN108612938A (en) * | 2018-06-21 | 2018-10-02 | 江苏腾驰科技有限公司 | A kind of double-sealing device for automobile engine mesohigh pipeline |
-
2012
- 2012-05-03 CN CN2012201948991U patent/CN202532055U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397965A (en) * | 2013-07-04 | 2013-11-20 | 广西玉柴机器股份有限公司 | Engine oil atomizer installation structure |
| CN103410645A (en) * | 2013-07-31 | 2013-11-27 | 杭州奥加汽车零部件制造有限公司 | High-pressure oil pipe for diesel engine |
| CN105156820A (en) * | 2015-09-18 | 2015-12-16 | 南京汽车集团有限公司 | Oil pipe joint-burst test bench connecting device |
| CN106150802A (en) * | 2016-07-29 | 2016-11-23 | 中国北方发动机研究所(天津) | A kind of high pressure seal structure |
| CN108150327A (en) * | 2018-01-11 | 2018-06-12 | 东风商用车有限公司 | Connection structure of oil sprayer and high-pressure oil pipe |
| CN108612935A (en) * | 2018-06-21 | 2018-10-02 | 江苏腾驰科技有限公司 | A kind of secondary sealer for automobile engine mesohigh pipeline |
| CN108612938A (en) * | 2018-06-21 | 2018-10-02 | 江苏腾驰科技有限公司 | A kind of double-sealing device for automobile engine mesohigh pipeline |
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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: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130903 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic Development Zone, Hanyang District, Hubei, China, No. 10, No. Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |