CN215408946U - High-pressure oil pipe joint with guide device - Google Patents
High-pressure oil pipe joint with guide device Download PDFInfo
- Publication number
- CN215408946U CN215408946U CN202121943881.2U CN202121943881U CN215408946U CN 215408946 U CN215408946 U CN 215408946U CN 202121943881 U CN202121943881 U CN 202121943881U CN 215408946 U CN215408946 U CN 215408946U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- pressure oil
- pipe joint
- pier head
- conical
- 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.)
- Active
Links
Images
Landscapes
- Joints With Pressure Members (AREA)
Abstract
The utility model discloses a high-pressure oil pipe joint with a guiding device, which comprises a high-pressure oil pipe, a connecting nut and a conical washer, wherein a pier head is arranged at the front end of the high-pressure oil pipe, the guiding device is arranged at the front end of the pier head, the high-pressure oil pipe is inserted into the connecting nut through an oil pipe hole on the connecting nut, and the guiding device is used for being matched with a guiding groove of an external high-pressure oil pipe joint to realize the accurate centering of the axis of the pier head of the high-pressure oil pipe and the axis of the external high-pressure oil pipe joint; the oil pipe hole on the coupling nut is provided with a conical transition surface, and the conical transition surface is matched with the conical gasket to realize sealing of the oil pipe hole.
Description
Technical Field
The utility model relates to the field of oil pipe connecting devices, in particular to a high-pressure oil pipe joint with a guiding device.
Background
At present, a bending elastic high-pressure oil pipe is generally used in the diesel engine industry, the oil pipe is machined and formed by a pipe bending machine, but the deformation of the high-pressure oil pipe is extremely easy to cause in the transferring and machining processes, in addition, the positions of an oil pump and an oil sprayer in the assembling process can also have deviation, the complete centering of a pier head of the high-pressure oil pipe and an external high-pressure oil pipe joint is difficult to ensure in the installation process, once the pier head and the external high-pressure oil pipe joint are not completely centered, an installation angle exists between two axial lines, the oil leakage is easy to occur after a nut is pre-tightened, the stress deformation is easy to generate on the surface of the pier head due to uneven stress, and the oil leakage caused by the above centering problems can be finally leaked from the outside of an oil pipe hole of a connecting nut.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a joint device which can realize accurate centering of a pier head and an externally connected high-pressure oil pipe joint in the installation process of a high-pressure oil pipe, reduce uneven stress deformation of a pier head spherical surface caused by bending deformation or machining and installation errors of the high-pressure oil pipe, and avoid leakage of high-pressure oil of a diesel engine.
The purpose of the utility model is realized by the following technical scheme:
a high-pressure oil pipe joint with a guiding device comprises a high-pressure oil pipe, a connecting nut and a conical washer, wherein a pier head is arranged at the front end of the high-pressure oil pipe, the guiding device is arranged at the front end of the pier head, the high-pressure oil pipe is inserted into the connecting nut through an oil pipe hole in the connecting nut, and the guiding device is used for being matched with a guiding groove of an external high-pressure oil pipe joint to realize accurate centering of the axis of the pier head of the high-pressure oil pipe and the axis of the external high-pressure oil pipe joint; the oil pipe hole on the coupling nut is provided with a conical transition surface, and the conical transition surface is matched with the conical gasket to realize sealing of the oil pipe hole.
Furthermore, the pier head is of an elliptical spherical structure.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the high-pressure oil pipe joint comprises a spherical pier head at the end part of an oil pipe, wherein the spherical pier head is used for establishing a sealing surface with an external high-pressure oil pipe joint, the connecting nut can be prevented from being separated, the sealing of the high-pressure oil pipe hole on the connecting nut is realized by combining a conical washer with a conical transition surface at the oil pipe hole of the nut, and a guide device at the front end of the pier head is designed, so that the pier head and the external high-pressure oil pipe joint can be accurately centered, and the surface deformation and oil leakage of the pier head caused by installation dislocation are effectively avoided.
Drawings
Fig. 1 and 2 are schematic structural views of the present invention.
Reference numerals: 1-high-pressure oil pipe, 2-pier head, 3-guiding device, 4-oil pipe hole, 5-conical transition surface, 6-conical washer, 7-coupling nut, 8-guiding groove and 9-external high-pressure oil pipe joint
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
As shown in fig. 1, a high pressure oil pipe joint with a guiding device comprises a high pressure oil pipe 1 with a pier head 2 at one end, the guiding device 3 for guiding is arranged at the front end of the high pressure oil pipe pier head 2, the high pressure oil pipe 1 is inserted into a coupling nut 7 through an oil pipe hole 4, and a conical washer 6 with a conical surface is arranged between the coupling nut 7 and the high pressure oil pipe pier head 2.
As shown in fig. 2, when the coupling nut 7 is pre-tightened with the external high-pressure oil pipe joint 9, the spherical surface of the pier head 2 of the high-pressure oil pipe is matched with the conical surface of the external high-pressure oil pipe joint 9 to establish a line seal, so as to establish a sealing passage of a high-pressure oil line, the guide device 3 at the front end of the pier head 2 is inserted into the guide groove 8 of the external high-pressure oil pipe joint 9, when the axis of the pier head 2 is misaligned with the axis of the external high-pressure oil pipe joint 9 due to the deformation of the oil pipe 1, the guide device 3 cannot be inserted into the guide groove 8, and the high-pressure oil pipe joint cannot be connected, so that the accurate alignment between the pier head 2 and the external high-pressure oil pipe joint 9 in the installation process of the high-pressure oil pipe is ensured, and it is ensured that the line seal can be established and the sealing position is unchanged every installation. The conical washer 6 is pressed when the coupling nut 7 is pre-tightened, and at the moment, the conical transition surface 5 in the oil pipe hole 4 is matched with the conical washer 6 to form a linear seal, so that fuel oil can be prevented from leaking from the oil pipe hole 4.
The above is an embodiment of the present invention, the guiding of the front end of the high pressure oil pipe can be realized by using various types of guiding devices such as rectangular, i-shaped, cross-shaped, etc., the external high pressure oil pipe joint can be adapted to the guiding device by using corresponding guiding grooves, and various improvements made to the guiding device should also be regarded as the protection scope of the present invention.
The present invention is not limited to the above-described embodiments. The foregoing description of the specific embodiments is intended to describe and illustrate the technical solutions of the present invention, and the above specific embodiments are merely illustrative and not restrictive. Those skilled in the art can make many changes and modifications to the utility model without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (2)
1. A high-pressure oil pipe joint with a guiding device is characterized by comprising a high-pressure oil pipe, a coupling nut and a conical washer, wherein a pier head is arranged at the front end of the high-pressure oil pipe, the front end of the pier head is provided with the guiding device, the high-pressure oil pipe is inserted into the coupling nut through an oil pipe hole in the coupling nut, and the guiding device is used for being matched with a guiding groove of an external high-pressure oil pipe joint to realize accurate centering of the axis of the pier head of the high-pressure oil pipe and the axis of the external high-pressure oil pipe joint; the oil pipe hole on the coupling nut is provided with a conical transition surface, and the conical transition surface is matched with the conical gasket to realize sealing of the oil pipe hole.
2. The guided high pressure tubing joint of claim 1, wherein the pier nose is a ball-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121943881.2U CN215408946U (en) | 2021-08-17 | 2021-08-17 | High-pressure oil pipe joint with guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121943881.2U CN215408946U (en) | 2021-08-17 | 2021-08-17 | High-pressure oil pipe joint with guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215408946U true CN215408946U (en) | 2022-01-04 |
Family
ID=79663780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121943881.2U Active CN215408946U (en) | 2021-08-17 | 2021-08-17 | High-pressure oil pipe joint with guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215408946U (en) |
-
2021
- 2021-08-17 CN CN202121943881.2U patent/CN215408946U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204961138U (en) | High pressure fuel pipe pipe end structure | |
| CN216590386U (en) | Sealing joint structure free of steel pipe welding | |
| CN215408946U (en) | High-pressure oil pipe joint with guide device | |
| CN212898756U (en) | Positioning sealing device for preventing ball head from being scratched and engine | |
| CN213236423U (en) | Press-fit pipe joint | |
| CN201858451U (en) | Conveniently dismounted high-pressure hydraulic pipe joint | |
| CN210218966U (en) | Flaring type pipe joint | |
| CN212616928U (en) | Hydraulic hose connector with good sealing performance | |
| CN214579444U (en) | Sealing element of safety joint for channel steel pipe | |
| CN202327443U (en) | Conical surface spherical composite sealing steel ring with for high-pressure pipeline | |
| CN211202999U (en) | Spherical check valve | |
| CN213040019U (en) | Pipeline connecting and sealing device for conveying fluid | |
| CN111120756B (en) | Blind-mating connector for liquid | |
| CN207279078U (en) | A kind of hydralic hose high sealing connector | |
| CN206191130U (en) | A quick connector grafting device for truck hydraulic system | |
| CN208041399U (en) | Built-up joint | |
| CN218845153U (en) | Valve plug and valve rod connection structure | |
| CN220688295U (en) | High-pressure sealing threaded joint | |
| CN221032898U (en) | Sealing structure of high-pressure oil pipe of engine | |
| CN212804456U (en) | High-sealing valve body | |
| CN210890539U (en) | Quick connecting joint for oil pipe | |
| CN106499556A (en) | A kind of injection pump discharge outlet and the attachment structure of high-pressure oil pipe | |
| CN210637175U (en) | High-pressure oil pipe connecting structure capable of realizing internal and external sealing | |
| CN220647077U (en) | Leak-proof connecting pipe fitting and connecting pipe structure | |
| CN104089113A (en) | Eccentric spherical externally-conical sealing structure for engine pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |