CN213745399U - Articulated oil pipe joint - Google Patents
Articulated oil pipe joint Download PDFInfo
- Publication number
- CN213745399U CN213745399U CN202022848392.0U CN202022848392U CN213745399U CN 213745399 U CN213745399 U CN 213745399U CN 202022848392 U CN202022848392 U CN 202022848392U CN 213745399 U CN213745399 U CN 213745399U
- Authority
- CN
- China
- Prior art keywords
- spherical head
- joint
- sealing
- hollow bolt
- oil
- 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 Allowing Movement (AREA)
Abstract
The utility model relates to a coupling field, specific articulated oil pipe connects that says so, including the joint body and hollow bolt. The joint body includes a spherical head and a first joint. A cavity is formed in the spherical head, an oil delivery channel is formed in the first joint, and an oil delivery port is formed at the free end of the first joint. An oil inlet channel is formed inside the hollow bolt, a through assembling hole is formed in the spherical head, and a through hole is formed in the position, located in the cavity, of the hollow bolt. The first joint is provided with a plurality of check rings, the diameter of each check ring gradually increases from the oil delivery port to the spherical head, and a straight section with the outer diameter equal to that of the free end of the first joint is arranged between the end, farthest away from the oil delivery port, of each check ring and the spherical head. And a sealing nut which is in threaded connection with the hollow bolt is arranged on one side of the spherical head opposite to the bolt head of the hollow bolt. The utility model discloses sealing performance is good, cup joint that oil pipe can be more firm on first joint.
Description
Technical Field
The utility model relates to a coupling field, specific articulated oil pipe connects that says so.
Background
An oil pipe joint is a common oil transportation fitting and is used for transporting oil for equipment such as an engine. However, the oil pipe joint in the prior art has low sealing performance, and meanwhile, the sleeving part of the joint and the oil pipe has danger factors that the oil pipe falls off from the joint due to insufficient friction force.
Disclosure of Invention
The utility model discloses an articulated oil pipe connects, the utility model discloses sealing performance is good, cup jointing that oil pipe can be more firm on first joint.
The utility model relates to an articulated oil pipe joint, including joint body and hollow bolt. The joint body comprises a spherical head and a first joint, a cavity is formed in the spherical head, an oil conveying channel is formed in the first joint, and an oil conveying port is formed at the free end of the first joint. The screw rod portion of the hollow bolt is a second joint, and an oil inlet channel is formed inside the second joint. The spherical head is further formed with a through assembly hole, the assembly hole is matched with the outer diameter of a screw rod of the hollow bolt, and the hollow bolt penetrates through the assembly hole to be installed on the joint body. The hollow bolt is provided with a through hole at the position of the cavity and used for communicating the oil transportation channel and the oil inlet channel. The first joint is provided with a plurality of check rings arranged along the axial direction of the first joint, and the diameter of each check ring gradually increases from the oil delivery port to the spherical head. A straight section with the outer diameter equal to that of the free end of the first joint is arranged between one end, farthest away from the oil delivery port, of the check ring and the spherical head, and a sealing nut in threaded connection with the hollow bolt is arranged on one side, opposite to the bolt head of the hollow bolt, of the spherical head.
Furthermore, a plurality of check rings with gradually decreasing diameters are arranged from the check ring with the largest diameter to the spherical head.
Furthermore, a first sealing gasket is arranged between the bolt head of the hollow bolt and the spherical head.
Further, a second sealing gasket is arranged between the sealing nut and the spherical head.
Furthermore, one side of the first sealing gasket, which is close to the spherical head, is provided with a first annular boss, and one side of the spherical head, which is in contact with the first sealing gasket, is provided with a first groove matched with the first annular boss, so that the first annular boss is clamped in the first groove.
Furthermore, one side of the second sealing gasket, which is close to the spherical head, is provided with a second annular boss, and one side of the spherical head, which is in contact with the second sealing gasket, is provided with a second groove matched with the second annular boss, so that the second annular boss is clamped in the second groove.
Furthermore, a third groove matched with the first sealing gasket is formed in one side, close to the spherical head, of the bolt head of the hollow bolt, and the first sealing gasket is clamped in the third groove.
Furthermore, one side of the sealing nut, which is close to the spherical head, is provided with a fourth groove matched with the second sealing gasket, and the second sealing gasket is clamped in the fourth groove.
Furthermore, the screw rod of the hollow bolt comprises a sealing section and a connecting section, and a step is arranged between the sealing section and the connecting section, so that the outer diameter of the sealing section is larger than that of the connecting section. The assembling hole is matched with the outer diameter of the sealing section, the connecting section is provided with a connecting external thread for being connected with an oil pipe thread, the sealing section is provided with a sealing external thread at the position connected with the sealing nut, and the sealing nut is provided with a sealing internal thread matched with the sealing external thread.
The utility model has the advantages that: the utility model discloses sealing performance is good, cup joint that oil pipe can be more firm on first joint.
Drawings
The invention will be further explained with reference to the accompanying drawings, which are simplified schematic drawings and which illustrate, by way of illustration only, the basic structure of the invention and do not constitute an undue limitation on the invention:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
in the figure: 101. the sealing structure comprises a spherical head portion, a cavity 112, a mounting hole, 113, a first groove, 114, a second groove, 102, a first joint, 121, an oil delivery passage, 122, an oil delivery port, 123, a check ring, 124, a straight section, 201, a second joint, 202, an oil inlet passage, 203, a through hole, 204, a third groove, 205, a step, 210, a sealing section, 211, a sealing external thread, 220, a connecting section, 221, a connecting external thread, 300, a sealing nut, 301, a fourth groove, 302, a sealing internal thread, 400, a first sealing gasket, 401, a first annular boss, 500, a second sealing gasket, 501 and a second annular boss.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure, as the terms used are used to describe particular embodiments only, and are not intended to limit the exemplary embodiments based on the disclosure.
The first embodiment:
fig. 1 shows, the utility model relates to an articulated oil pipe joint, including the joint body and hollow bolt.
The joint body comprises a spherical head 101 and a first joint 102. A cavity 111 is formed in the spherical head 101, an oil delivery passage 121 is formed in the first joint 102, and an oil delivery port 122 is formed at a free end thereof. The screw portion of the hollow bolt is a second joint 201, and an oil inlet channel 202 is formed inside the second joint. The spherical head 101 is further formed with a through-hole 112, the hole 112 matches with the outer diameter of the bolt shaft of the hollow bolt, and the hollow bolt is installed on the joint body through the hole 112. The hollow bolt is provided with a through hole 203 at the position of the cavity 111 for communicating the oil transportation channel 121 and the oil inlet channel 202. The first joint 102 and the second joint 201 are respectively connected to oil pipes to be connected, so that oil enters the oil transportation channel 121 from the oil inlet channel 202 and then enters the oil demand equipment through the oil pipes.
A first sealing gasket 400 is arranged between the bolt head of the hollow bolt and the spherical head 101, so that the sealing effect between the bolt head of the hollow bolt and the spherical head 101 is enhanced. First sealed 400 of filling up is close to one side of spherical head 101 is equipped with first annular boss 401, spherical head 101 with one side that first sealed 400 of filling up the contact be equipped with first annular boss 401 assorted first recess 113, make first annular boss 401 card advance in the first recess 113, strengthened the sealing performance between first sealed 400 of filling up and the spherical head 101. One side of the bolt head of the hollow bolt, which is close to the spherical head 101, is provided with a third groove 204 matched with the first sealing gasket 400, and the first sealing gasket 400 is clamped in the third groove 204, so that the sealing performance between the first sealing gasket 400 and the bolt head of the hollow bolt is enhanced.
The sealing nut 300 which is in threaded connection with the hollow bolt is arranged on one side, opposite to the bolt head of the hollow bolt, of the spherical head part 101, the second sealing gasket 500 is arranged between the sealing nut 300 and the spherical head part 101, and the sealing performance between the middle part of the hollow bolt and the spherical head part 101 is enhanced through the arrangement of the sealing nut 300 and the second sealing gasket 500. The second is sealed 500 is close to one side of spherical head 101 is equipped with second annular boss 501, spherical head 101 with one side that the second sealed pad 500 contacts be equipped with second annular boss 501 assorted second recess 114, make second annular boss 501 card advances in the second recess 114, strengthened the sealing performance between second sealed pad 500 and spherical head 101. One side that gland nut 300 is close to spherical head 101 is equipped with the second is sealed fills up 500 assorted fourth recess 301, the second is sealed fills up 500 card and is advanced in the fourth recess 301, has strengthened the sealing performance between gland nut 300 and the second is sealed to fill up 500.
The first joint 102 is provided with a plurality of check rings 123 arranged along the axial direction of the first joint 102, and the diameter of each check ring 123 gradually increases from the oil delivery port 122 to the spherical head 101. A straight section 124 with the outer diameter equal to that of the free end of the first joint 102 is arranged between the end of the check ring 123 farthest from the oil delivery port 122 and the spherical head 101. When the oil pipe is sleeved on the first joint 102, the diameter of the check ring 123 is larger than that of the oil pipe sleeved on the check ring 123, each level of check ring 123 with gradually increasing diameter enables the oil pipe to generate radial elastic deformation, but when the oil pipe is continuously sleeved on the first joint 102, the end part of the oil pipe reaches the straight section 124, as the diameter of the straight section 124 is equal to the diameter of the outer end of the free end of the first joint 102 (the diameter of the outer end of the free end of the first joint 102 is smaller than the inner diameter of the oil pipe), the shape of the end part of the oil pipe is restored to the original state due to the disappearance of the external force, namely, the end part of the oil pipe forms a section of a reducing mouth relative to the part on the check ring 123, when the oil pipe needs to be taken off from the first joint 102, the force acting on the oil pipe needs to resist not only the friction force between the oil pipe and the check ring 123, but also needs to resist the elastic force of the end part of the oil pipe, therefore, the setting of the straight section 124 can prevent the oil pipe from falling off from the first joint 102 when the oil pressure is suddenly overlarge, the safety performance is improved.
The screw of the hollow bolt comprises a sealing section 210 and a connecting section 220, a step 205 is arranged between the sealing section 210 and the connecting section 220, so that the outer diameter of the sealing section 210 is larger than that of the connecting section 220, and the assembling hole 112 is matched with the outer diameter of the sealing section 210. The connecting section 220 is provided with a connecting external thread 221 for being in threaded connection with an oil pipe, the sealing section 210 is provided with a sealing external thread 211 at the position connected with the sealing nut 300, and the sealing nut 300 is provided with a sealing internal thread 302 matched with the sealing external thread 211. The step 205 is configured such that the outer diameter of the sealing section 210 is larger than the outer diameter of the connecting section 220, which facilitates the sealing nut 300 to be screwed onto the sealing external thread 211 of the sealing section 210.
Second embodiment:
in addition to the first embodiment, as shown in fig. 2, a plurality of check rings 123 having gradually decreasing diameters are added in the direction of the spherical head 101 from the check ring 123 having the largest diameter. The part of the oil pipe in the straight section 124 is subjected to the minimum external force, the part of the check ring 123 with the maximum direct reduction is subjected to the maximum external force, and the additionally arranged check ring 123 can enable the external force applied to the oil pipe from the part of the check ring 123 with the maximum diameter to the part of the straight section 124 to be gradually reduced, so that the oil pipe is prevented from being broken after working for a certain time by the suddenly changed external force. Meanwhile, the additionally arranged check ring 123 can also increase the friction force between the oil pipe and the first joint 102, so that the oil pipe is prevented from falling off from the first joint 102, and the safety performance is further improved.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides an articulated oil pipe joint, includes and connects body and hollow bolt, it includes spherical head and first joint to connect the body, form the cavity in the spherical head, the inside oil transportation passageway that forms of first joint, its free end forms oil transportation mouth, the screw rod portion of hollow bolt connects for the second, and its inside oil feed passageway that forms, spherical head still shaping has the pilot hole that link up, the pilot hole with hollow bolt's screw rod external diameter phase-match, hollow bolt passes the pilot hole is installed connect on the body, hollow bolt is located the position department of cavity has seted up the through-hole, is used for the intercommunication oil transportation passageway with the oil feed passageway, be equipped with a plurality of circles on the first joint and follow the non-return ring of the axial setting of first joint, its characterized in that: the diameters of the check rings at all levels gradually increase from the oil conveying port to the spherical head, a straight section with the outer diameter equal to that of the free end of the first joint is arranged between one end, farthest away from the oil conveying port, of each check ring and the spherical head, and a sealing nut which is in threaded connection with the hollow bolt is arranged on one side, opposite to the bolt head of the hollow bolt, of each spherical head.
2. The articulated tubing joint of claim 1, wherein: and a plurality of check rings with gradually reduced diameters are arranged from the check ring with the largest diameter to the spherical head.
3. The articulated tubing joint of claim 1, wherein: a first sealing gasket is arranged between the bolt head of the hollow bolt and the spherical head.
4. The articulated tubing joint of claim 1, wherein: and a second sealing gasket is arranged between the sealing nut and the spherical head.
5. The articulated tubing joint of claim 3, wherein: one side that first sealed pad is close to spherical head is equipped with first annular boss, spherical head with one side that first sealed pad contacted be equipped with first annular boss assorted first recess makes first annular boss card advances in the first recess.
6. The articulated tubing joint of claim 4, wherein: one side of the second sealing gasket, which is close to the spherical head, is provided with a second annular boss, and one side of the spherical head, which is in contact with the second sealing gasket, is provided with a second groove matched with the second annular boss, so that the second annular boss is clamped into the second groove.
7. An articulated tubing joint according to claim 3 or 5, wherein: and a third groove matched with the first sealing gasket is arranged on one side, close to the spherical head, of the bolt head of the hollow bolt, and the first sealing gasket is clamped into the third groove.
8. An articulated tubing joint according to claim 4 or 6, wherein: one side of the sealing nut, which is close to the spherical head, is provided with a fourth groove matched with the second sealing gasket, and the second sealing gasket is clamped in the fourth groove.
9. An articulated tubing joint according to any of claims 1-6, wherein: the screw rod of the hollow bolt comprises a sealing section and a connecting section, a step is arranged between the sealing section and the connecting section, so that the outer diameter of the sealing section is larger than that of the connecting section, the assembling hole is matched with the outer diameter of the sealing section, a connecting external thread is arranged on the connecting section and is used for being connected with an oil pipe thread, a sealing external thread is arranged at the position, connected with a sealing nut, of the sealing section, and a sealing internal thread matched with the sealing external thread is arranged on the sealing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022848392.0U CN213745399U (en) | 2020-12-02 | 2020-12-02 | Articulated oil pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022848392.0U CN213745399U (en) | 2020-12-02 | 2020-12-02 | Articulated oil pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213745399U true CN213745399U (en) | 2021-07-20 |
Family
ID=76832165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022848392.0U Active CN213745399U (en) | 2020-12-02 | 2020-12-02 | Articulated oil pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213745399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757008A (en) * | 2021-09-29 | 2021-12-07 | 广西玉柴机器股份有限公司 | Low pressure oil pipe joint structure that little space was arranged |
-
2020
- 2020-12-02 CN CN202022848392.0U patent/CN213745399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757008A (en) * | 2021-09-29 | 2021-12-07 | 广西玉柴机器股份有限公司 | Low pressure oil pipe joint structure that little space was arranged |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101180490B (en) | Threaded joint for pipes provided with seal | |
| US5996636A (en) | Tube joint | |
| US4619472A (en) | Pipe coupling | |
| CN101438089B (en) | Tubular threaded joint | |
| OA12918A (en) | Threaded tube joint. | |
| CN213745399U (en) | Articulated oil pipe joint | |
| JP6646166B2 (en) | Threaded joint | |
| CN107606342A (en) | Pipeline connects equipment | |
| CN202327418U (en) | Pipe union | |
| CN203978318U (en) | There is the tool joint of varying pitch all-sealed structure | |
| CN217632307U (en) | Economical oil and casing thread structure | |
| CN212718487U (en) | With stop valve complex joint and idle call test system | |
| CN203978319U (en) | There is the tool joint of all-sealed structure | |
| JP4691904B2 (en) | Oil well steel pipe fittings | |
| CN210830942U (en) | Novel quick connector | |
| EP2937612B1 (en) | Threaded joint for pipe | |
| CN113324120A (en) | Conveying control component of liquid rocket propellant | |
| CN211730957U (en) | Light weight type automobile control arm | |
| CN214787954U (en) | Plunger assembly structure | |
| CN114673846B (en) | Hydraulic hose joint | |
| CN201090869Y (en) | Automobile power steering equipment coupling head | |
| CN210218520U (en) | Exempt from spring that anti sizing material of welding extruded | |
| CN220152084U (en) | Connecting pipe assembly and vehicle | |
| CN220267797U (en) | Connecting structure of self-locking cylinder cover and oil inlet pipe | |
| CN215928708U (en) | Connecting mechanism for pipe body and joint of high-pressure oil pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |