CN104675593A - High-pressure oil pipe - Google Patents
High-pressure oil pipe Download PDFInfo
- Publication number
- CN104675593A CN104675593A CN201310631242.6A CN201310631242A CN104675593A CN 104675593 A CN104675593 A CN 104675593A CN 201310631242 A CN201310631242 A CN 201310631242A CN 104675593 A CN104675593 A CN 104675593A
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- Prior art keywords
- oil pipe
- pressure oil
- nut
- lining
- conehead
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Abstract
The invention provides a high-pressure oil pipe, belongs to the technical field of mechanisms, and aims at solving the problems of poor pressure resistance and easy breaking of the existing high-pressure oil pipe. The high-pressure oil pipe comprises a pipe body, and a nut which sleeves the end part of the pipe body; a tapered head is fixedly connected to the end part of the pipe body; a stopping edge is arranged in the nut; a tapered bushing is arranged between the tapered head and the stopping edge of the nut on the pipe body; a tapered surface in match with the bushing in appearance is arranged at the inner side of the stopping edge of the nut; an axial breaking opening is formed in the bushing. The high-pressure oil pipe has the advantages of being simple in structure, convenient to use, high in pressure resistance, and high in sealing performance.
Description
Technical field
The invention belongs to field of mechanical technique, particularly a kind of high-pressure oil pipe.
Background technique
High-pressure oil pipe is made up of body, retainer ring and nut, it is a pith of diesel engine and injection system high pressure volume, high-pressure oil pipe amount of pressure is operationally cyclic fluctuation, this fluctuation makes high-pressure oil pipe produce vibration, therefore requires that high-pressure oil pipe under high pressure can ensure to seal also the effectively resistance to ability of shaking and less elastic expandable.The two ends of existing high-pressure oil pipe joint is be rigidly connected with Injection Pump and oil sprayer respectively, and some surface of contact are too large again, by nut firmly and tight time, make head produce mount stress.If mounting point and off size suitable, hard draw is to installation place, and at a slant that nut is tight, then problem is just even more serious, in use easily ruptures from head.
Summary of the invention
The object of the invention is to there is above-mentioned problem for existing high-pressure oil pipe, provide that a kind of structure is simple, easy for installation, compressive strength is high, the high-pressure oil pipe of good seal performance.
Object of the present invention realizes by following technical proposal: a kind of high-pressure oil pipe, comprise body and the nut being socketed in body end, described body end is fixed with conehead, there is in described nut gear edge, it is characterized in that, described body is provided with cone shape lining between above-mentioned conehead and the gear edge of nut, and described nut gear is provided with the conical surface matched with lining profile along inner side, described lining has a fracture port vertically.
When this high-pressure oil pipe is installed on oil pump or oil sprayer, due to lining to be arranged on body and conehead and nut gear along between, lining is so just made to be limited in nut and can not to spin off in nut, simultaneously lining profile matches with the conical surface on nut and lining contacts with nut surface, make the tightr of lining and nut screw connection like this, install more convenient, sealability is better.Lining has fracture port makes lining have certain elasticity, and the extruding lining when nut is also tight, makes lining to contact with body more closely, thus opened by the pressure dissipation on body, greatly improve its resistance to anti-pressure ability that shakes like this.
In above-mentioned high-pressure oil pipe, described lining is tightly fixed on body.
In above-mentioned high-pressure oil pipe, described lining has fixing part cylindrically, described fixing part external diameter and nut internal diameter match.In installation process, make body can not double swerve in nut like this, install more convenient.
In above-mentioned high-pressure oil pipe, described lining is fixed on body by screw thread.Make lining firmly can link together with body like this.
In above-mentioned high-pressure oil pipe, described conehead is annular centrum and the end of conehead has R head joint, and described joint port outside diameter is less than outer tube diameter.Make this high-pressure oil pipe both be applicable to be connected with large diameter pipeline like this, be also applicable to small-bore pipeline and be connected, R head joint makes this high-pressure oil pipe can better be inserted into fuel pump outlet or oil sprayer import simultaneously.
In above-mentioned high-pressure oil pipe, described conehead is fixed on body by screw thread.
In above-mentioned high-pressure oil pipe, described conehead is welded on body.
Compared with prior art, the gear on this high-pressure oil pipe nut along having conical surface, and is provided with cone shape lining between gear edge and conehead, lining profile matches with conical surface, make the tightr of lining and nut screw connection like this, install more convenient, antidetonation, locking, anti-leak performance is good.
Lining has a fracture port vertically, fracture port makes lining have certain elasticity, when nut is also tight, nut can extrude lining, lining can be held body tightly and lining is contacted with body more closely, thus by the pressure dissipation on body on lining, can greatly improve its resistance to anti-pressure ability that shakes.
There is in the end of conehead R head joint, joint port outside diameter is less than outer tube diameter, this high-pressure oil pipe is made both to be applicable to be connected with large diameter pipeline like this, also be applicable to small-bore pipeline be connected, R head joint makes this high-pressure oil pipe can better be inserted into fuel pump outlet or oil sprayer import simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of this high-pressure oil pipe.
Fig. 2 is the sectional structure schematic diagram of this high-pressure oil pipe.
Fig. 3 is the structural representation of lining in this high-pressure oil pipe.
In figure, 1, body; 2, conehead; 21, joint; 3, lining; 31, fixing part; 32, fracture port; 4, nut; 41, edge is kept off; 42, conical surface.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As depicted in figs. 1 and 2, this high-pressure oil pipe comprises body 1, conehead 21, lining 3 and is socketed in the nut 4 of body 1 end, and wherein conehead 21 is connected in body 1 end, has gear along 41 in nut 4.
Conehead 21 is annular centrum and the end of conehead 21 has R head joint 21, joint 21 port outside diameter is less than body 1 external diameter, this high-pressure oil pipe is made both to be applicable to be connected with large diameter pipeline like this, also be applicable to small-bore pipeline be connected, R head joint 21 makes this high-pressure oil pipe can better be inserted into fuel pump outlet or oil sprayer import simultaneously.Conehead 21 is fixed on body 1 by screw thread, conehead 21 and body 1 is made firmly to link together like this, certainly and conehead 21 self can be needed to be welded on body 1 according to actual conditions, same like this conehead 21 and the body 1 of making can firmly link together.
Lining 3 is arranged on conehead 21 and nut 4 gear in coniform and lining 3 is along between 41, and lining 3 is tightly fixed on body 1.Also can lining 3 be fixed on body 1 by screw thread according to actual conditions, make lining 3 firmly can link together with body 1 like this.As shown in Figure 3, lining 3 has a fracture port 32 vertically, fracture port 32 makes lining 3 have certain elasticity, when nut 4 is also tight, nut 41 can extrude lining 3, lining 3 can be held body 1 tightly and lining 3 is contacted with body 1 more closely, thus by the pressure dissipation on body 1 on lining 3, can greatly improve its resistance to anti-pressure ability that shakes.Lining 3 also has fixing part 31 cylindrically, and fixing part 31 external diameter and nut 4 internal diameter match.In installation process, make body 1 can not double swerve in nut 4 like this, install more convenient.
Keep off the conical surface 42 being provided with inside along 41 and matching with lining 3 profile at nut 4, lining 3 contacts for face with the conical surface 42 on nut 4, and what make lining 3 coordinate with nut 4 like this is tightr, and install more convenient, sealability is better.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (5)
1. a high-pressure oil pipe, comprise body and the nut being socketed in body end, described body end is fixed with conehead, there is in described nut gear edge, it is characterized in that, described body is provided with cone shape lining between above-mentioned conehead and the gear edge of nut, and described nut gear is provided with the conical surface matched with lining profile along inner side, described lining has a fracture port vertically.
2. high-pressure oil pipe according to claim 1, is characterized in that, described lining is tightly fixed on body.
3. high-pressure oil pipe according to claim 2, is characterized in that, described lining has fixing part cylindrically, and described fixing part external diameter and nut internal diameter match.
4. high-pressure oil pipe according to claim 3, is characterized in that, described conehead is annular centrum and the end of conehead has R head joint, and described joint port outside diameter is less than outer tube diameter.
5. high-pressure oil pipe according to claim 4, is characterized in that, described conehead is fixed on body by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631242.6A CN104675593A (en) | 2013-11-28 | 2013-11-28 | High-pressure oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631242.6A CN104675593A (en) | 2013-11-28 | 2013-11-28 | High-pressure oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675593A true CN104675593A (en) | 2015-06-03 |
Family
ID=53311072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310631242.6A Pending CN104675593A (en) | 2013-11-28 | 2013-11-28 | High-pressure oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095725A (en) * | 2022-07-04 | 2022-09-23 | 东风（十堰）汽车管业有限公司 | High pressure fuel pipe multi-level sealing structure |
-
2013
- 2013-11-28 CN CN201310631242.6A patent/CN104675593A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095725A (en) * | 2022-07-04 | 2022-09-23 | 东风（十堰）汽车管业有限公司 | High pressure fuel pipe multi-level sealing structure |
| CN115095725B (en) * | 2022-07-04 | 2024-02-06 | 东风（十堰）汽车管业有限公司 | Multi-level sealing structure of high-pressure oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |