CN207377687U - A kind of end part of high-pressure oil pipe welding structure - Google Patents
A kind of end part of high-pressure oil pipe welding structure Download PDFInfo
- Publication number
- CN207377687U CN207377687U CN201721040084.7U CN201721040084U CN207377687U CN 207377687 U CN207377687 U CN 207377687U CN 201721040084 U CN201721040084 U CN 201721040084U CN 207377687 U CN207377687 U CN 207377687U
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- China
- Prior art keywords
- oil pipe
- chase
- pipe
- end part
- welding
- 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 discloses a kind of end part of high-pressure oil pipe welding structures, it is related to engine high pressure playpipe field, including the oil pipe welded with globe joint, the oil pipe offers a plurality of chase with globe joint weld, chase circle distribution on oil-pipe external wall, the utility model is processed by doing special structure in tube end, ensure gap uniformity of the forming head with ensureing weld seam after pipe grafting of receiving, ensure welded gaps in the size connect most useful for Welding again, so as to be effectively improved the welding quality between connector and pipe, it weld strength and is all greatly improved in the ability of resistance to internal high pressure pulse, chase by being processed in pipe end outer wall simultaneously, it efficiently avoids unwelded part and qualified situation is detected in leak test process.
Description
Technical field
The utility model is related to engine high pressure playpipe fields, and in particular to a kind of end part of high-pressure oil pipe welding structure.
Background technology
In engine high pressure playpipe welding technique, common tube end does not make special size processing, same globe joint
Coordinated using slight interference.Usually there is the situation that brazing solder can not be sufficient filling with entire weld seam, while if due to solder
Missing is omitted, and connector and pipe way are there is no any welding, but when postorder is revealed and tested, since connector and pipe way were
It is full of cooperation, leak test result is caused not revealed for part.There is very big outflow risk in the defects of not welding part.
China Patent No. CN201405166Y discloses a kind of Seal welding of metal tube for electric resistance welding particularly steel pipe
End construction is connect, for carrying out electric resistance welding, the outer profile of the longitudinal section of the tube wall of the sealing end of the steel pipe with hush panel
Shape is gradually narrows along steel pipe axis to welding ends, and the sealing end for forming the tube wall of the steel pipe is evagination rounding off, i.e.,
The outer contour shape of the longitudinal section of tube wall is semicircle, arc, half elliptic, double outer convex arc tapers etc..Said structure causes gold
Belong to pipe and instantaneously reach enough current densities with what sealed piece was powered during welding;Also ensure the end of metal tube simultaneously
With enough intensity, prevent that welding process welding position is crushed, the ring convex weldering particularly with thin-wall steel tube is more conducive to
It avoids being crushed, avoids the occurrence of splash phenomena, so that the utility model reaches simplified technique, reduce cost, reduce pollution
Effect.
How this improves the welding quality of soldering again without solution primarily directed in the welding manner of electric resistance welding.
The content of the invention
The purpose of this utility model is to provide a kind of end part of high-pressure oil pipe welding structure, to solve to cause in the prior art
The above-mentioned defects.
A kind of end part of high-pressure oil pipe welding structure, including the oil pipe welded with globe joint, the oil pipe and spherical shape
A plurality of chase, chase circle distribution on oil-pipe external wall are offered at weld.
Preferably, the appearance profile of the longitudinal section of the oil pipe weld is circle.
Preferably, the radius of the longitudinal section of the oil pipe weld is 7.96-8.04cm.
Preferably, the length of the chase is 4.6-4.7cm.
Preferably, the depth B of the chase is 0.05cm.The angle of chase and horizontal plane is C, and the angle of C is 60 °.
Preferably, the oil-pipe external wall is further opened with two annular ditch, and the annular ditch is vertically arranged with the chase.
The utility model has the advantage of：It is processed by doing special structure in tube end, it is ensured that forming head of receiving and pipe
Ensure the gap uniformity of weld seam after sub- grafting, and ensure welded gaps in the size connect most useful for Welding, thus effectively
Ground improves the welding quality between connector and pipe, weld strength and has in the ability of resistance to internal high pressure pulse very big
Raising, while the chase by being processed in pipe end outer wall efficiently avoids unwelded part and examined in leak test process
Survey qualified situation.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the sectional view of the utility model.
Fig. 3 is the enlarged diagram at A in Fig. 2.
Wherein, 1- oil pipes, 2- chases, 3- annular ditch.
Specific embodiment
Technical means, creative features, achievable purpose and effectiveness to realize the utility model are easy to understand, below
With reference to specific embodiment, the utility model is expanded on further.
As shown in Figure 1 to Figure 3, a kind of end part of high-pressure oil pipe welding structure, including the oil pipe welded with globe joint
1, the oil pipe 1 offers a plurality of chase 2, the chase 2 circle distribution on 1 outer wall of oil pipe with globe joint weld.
In the present embodiment, the appearance profile of the longitudinal section of 1 weld of oil pipe is circle.
In the present embodiment, the radius of the longitudinal section of 1 weld of oil pipe is 7.96-8.04cm.
In the present embodiment, the length of the chase 2 is 4.6-4.7cm.
In the present embodiment, the depth B of the chase 2 is 0.05cm.The angle of chase 2 and horizontal plane is C, the angle of C
For 60 °.
In the present embodiment, 1 outer wall of oil pipe is further opened with two annular ditch 3, the annular ditch 3 and the chase 2
It is vertically arranged, annular ditch 3 accommodates mechanism with tube welding and is in contact, and directly large area will not be caused to wear oil pipe 1.
During welding, using inserting mode pre-connection between the weld of globe joint and oil pipe 1, realized afterwards by being brazed
The close connection of the two, and in weld seam solder is needed to be sufficient filling with, without any leakage under the working condition of internal high pressure.
It based on above-mentioned, is processed by doing special structure in tube end, it is ensured that forming head of receiving and i.e. guarantor after pipe grafting
The gap uniformity of weld seam is demonstrate,proved, and ensures welded gaps in the size connect most useful for Welding, so as to be effectively improved connector
Welding quality between pipe, weld strength and is all greatly improved in the ability of resistance to internal high pressure pulse, simultaneously
By the chase 2 processed in pipe end outer wall, it is qualified in the detection of leak test process to efficiently avoid unwelded part
Situation.
As known by the technical knowledge, the utility model can pass through other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above, all things considered are all merely illustrative, and are not only
's.It is all in the scope of the utility model or in the change being equal in the scope of the utility model by the utility model bag
Contain.
Claims (6)
1. a kind of end part of high-pressure oil pipe welding structure, including the oil pipe welded with globe joint（1）, which is characterized in that institute
State oil pipe（1）A plurality of chase is offered with globe joint weld（2）, the chase（2）In oil pipe（1）Circumference point on outer wall
Cloth.
2. a kind of end part of high-pressure oil pipe welding structure according to claim 1, it is characterised in that：The oil pipe（1）Welding
The appearance profile of the longitudinal section at place is circle.
3. a kind of end part of high-pressure oil pipe welding structure according to claim 2, it is characterised in that：The oil pipe（1）Welding
The radius of the longitudinal section at place is 7.96-8.04cm.
4. a kind of end part of high-pressure oil pipe welding structure according to claim 1, it is characterised in that：The chase（2）Length
It spends for 4.6-4.7cm.
5. a kind of end part of high-pressure oil pipe welding structure according to claim 1, it is characterised in that：The chase（2）Depth
Degree B is 0.05cm chases（2）Angle with horizontal plane is C, and the angle of C is 60 °.
6. a kind of end part of high-pressure oil pipe welding structure according to claim 1, it is characterised in that：The oil pipe（1）Outer wall
It is further opened with two annular ditch（3）, the annular ditch（3）With the chase（2）It is vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721040084.7U CN207377687U (en) | 2017-08-18 | 2017-08-18 | A kind of end part of high-pressure oil pipe welding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721040084.7U CN207377687U (en) | 2017-08-18 | 2017-08-18 | A kind of end part of high-pressure oil pipe welding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207377687U true CN207377687U (en) | 2018-05-18 |
Family
ID=62342626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721040084.7U Expired - Fee Related CN207377687U (en) | 2017-08-18 | 2017-08-18 | A kind of end part of high-pressure oil pipe welding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207377687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013455A (en) * | 2022-05-30 | 2022-09-06 | 上海裴椒汽车部件制造有限公司 | Brake oil pipe joint and forming process thereof |
-
2017
- 2017-08-18 CN CN201721040084.7U patent/CN207377687U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013455A (en) * | 2022-05-30 | 2022-09-06 | 上海裴椒汽车部件制造有限公司 | Brake oil pipe joint and forming process thereof |
| CN115013455B (en) * | 2022-05-30 | 2024-05-03 | 上海裴椒汽车部件制造有限公司 | Brake oil pipe joint and forming process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tian Yongfu Inventor after: Qi Zhanshuang Inventor after: Zhang Yuanyuan Inventor before: Tian Yongfu |
|
| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20180818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |