CN108223933B - Pipeline connecting mechanism - Google Patents
Pipeline connecting mechanism Download PDFInfo
- Publication number
- CN108223933B CN108223933B CN201810223829.6A CN201810223829A CN108223933B CN 108223933 B CN108223933 B CN 108223933B CN 201810223829 A CN201810223829 A CN 201810223829A CN 108223933 B CN108223933 B CN 108223933B
- Authority
- CN
- China
- Prior art keywords
- joint
- pressing sleeve
- pipe
- side wall
- pipe joint
- 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.)
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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 88
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 210000002445 nipple Anatomy 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 210000003781 tooth socket Anatomy 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
- Joints With Pressure Members (AREA)
Abstract
The pipeline connecting mechanism comprises an outer joint, a pipe joint, an inner joint and a pressing sleeve, wherein the pressing sleeve and the inner joint are matched with each other and form a closed chamber together; the pipe joint is arranged in the pressing sleeve, extends out of the upper part of the pressing sleeve relative to the pressing sleeve, and is connected with a rubber pipe on the part of the pipe joint extending out of the tooth socket; the outer joint and the pipe joint are connected and fixed in a threaded mode. The invention ensures the sealing effect when the device body transmits the medium to the outside through the rubber tube through reasonable structural arrangement, thereby avoiding the field safety accident of the device caused by the leakage and seepage of the medium.
Description
Technical Field
The invention belongs to the technical field related to pipeline connection, and particularly relates to a pipeline connecting mechanism.
Background
It will be appreciated that the pipe connections are used more often in existing production sites, for example in hydraulic stations, where the connections between pipes are more frequent.
At present, in the prior art, the pipeline connection of the equipment body for transporting media outwards is mostly as shown in the attached drawing 1, an external joint is connected on the equipment body, and the external joint is connected with a pipe joint in a threaded connection mode and outwards connected through a rubber pipe on the pipe joint. The pipeline connecting structure realizes the transmission of the medium on the equipment body, but the connection state of the threaded connection between the pipe joint and the outer joint is easy to loosen, and the connection state of the pipe joint and the outer joint is also loosened and even damaged due to aging in the long-time use process, so that the leakage of the medium or related accidents of leakage are caused, and meanwhile, the large potential safety hazard and the waste of the medium can be caused to the field of the equipment.
Disclosure of Invention
Aiming at the defects in the technology, the invention provides a pipeline connecting mechanism with the functions of preventing leakage and leakage.
The pipeline connecting mechanism comprises an outer joint, a pipe joint, an inner joint and a pressing sleeve; one side of the pipe joint is fixedly connected with an outer joint in a threaded manner, and the other side of the pipe joint is outwards connected with a rubber pipe; the inner joint is attached to the equipment body, the outer joint is arranged in the cavity of the inner joint and extends downwards relative to the cavity part of the inner joint, and one side of the outer joint, which extends out of the inner joint, is connected with a pipeline on the equipment body; the pipe joint is arranged in the concave cavity of the pressing sleeve and extends outwards relative to the channel part arranged on the pressing sleeve; the outer side wall of the upper joint part of the pipe joint is matched with the inner side wall of the opening of the upper channel of the pressing sleeve, and the pipe joint and the upper channel of the pressing sleeve are sealed when the pipe joint is assembled on the pressing sleeve; the pressing sleeve and the inner joint are connected and fixed in a threaded mode.
As a preferable scheme of the present invention, the outer side wall of the pipe joint is set to be an outer arc-shaped annular structure, the inner side wall at the opening of the channel on the pressing sleeve is set to be an inner arc-shaped annular structure matched with the outer side wall on the pipe joint, and the sealing of the pipe joint to the channel on the pressing sleeve is realized by the close contact between the outer side wall on the pipe joint and the inner side wall at the opening of the channel on the pressing sleeve.
As a preferable aspect of the present invention, an outer side wall of the pipe joint upper connecting pipe portion is matched with an inner side wall of the pressing sleeve upper passage.
As a preferable scheme of the present invention, a sealing ring is embedded in a portion of the press sleeve, which is matched with the connecting pipe portion of the pipe joint, and the sealing ring protrudes outward relative to the press sleeve portion and is tightly matched with the connecting pipe portion of the pipe joint.
As a preferable aspect of the present invention, an internal thread is provided on an outer sidewall of the pressing sleeve, an external thread for matching the internal thread on the outer sidewall of the pressing sleeve is provided on an inner sidewall of the nipple, wherein a thread length of the internal thread on the outer sidewall of the pressing sleeve is smaller than a thread length of the external thread on the inner sidewall of the nipple, and when the pressing sleeve is screwed and fixed with the nipple, an inner sidewall of an opening of a passage on the pressing sleeve is attached to an outer sidewall of a joint portion of a pipe joint fitted to an outer joint.
In a preferred embodiment of the present invention, the lower portion of the outer joint extends out of the inner joint, and is limited and fixed by a nut.
Or, the invention claims a pipeline connecting mechanism, which comprises an outer joint, a pipe joint, an inner joint and a pressing sleeve, wherein the pressing sleeve and the inner joint are mutually matched and form a closed chamber together; the pipe joint is arranged in the pressing sleeve, extends out of the upper part of the pressing sleeve relative to the pressing sleeve, and is connected with a rubber pipe on the part of the pipe joint extending out of the tooth socket; the outer joint and the pipe joint are connected and fixed in a threaded mode.
Through the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the pipeline connecting mechanism claimed by the invention realizes one sealing of the outward connecting channel of the equipment body through the structural arrangement of the threaded connection between the pipe joint and the outer joint; the pressing sleeve, the inner joint and the pipe joint and the outer joint are reasonably arranged in a structure, so that two sealing of an outward connecting channel of the equipment body is realized; meanwhile, the pressing sleeve is assembled with the inner joint, and the pressing sleeve and the pipe joint and the outer joint realize the two-way sealing effect together, so that the assembly between the pipe joint and the outer joint is ensured to be in place, the sealing effect of the pipeline connecting mechanism is ensured, and further the field safety accidents of equipment caused by medium leakage and seepage are avoided.
Drawings
Fig. 1 is a schematic structural diagram of a pipe connection mechanism in the prior art.
Fig. 2 is a schematic structural diagram of a pipeline connecting mechanism provided by the invention.
FIG. 3 is a schematic view of an assembly structure of the inner joint, the outer joint and the device body according to the present invention.
Fig. 4 is a schematic view showing the result of assembling the pipe joint and the press sleeve in the present invention.
Wherein, 10, an external joint; 11. a nut; 20. a pipe joint; 21. a joint portion; 22. a connecting pipe portion; 30. an inner joint; 31. a concave cavity; 32. an external thread; 40. pressing the sleeve; 41. a channel; 42. an internal thread; 50. a hose; 200. an apparatus body; 210. a pipeline.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The claimed pipe connection mechanism is specifically used for connecting the pipeline 210 on the device body 200 outwards, so as to realize the transmission of media outwards from the device body 200.
Referring to fig. 2-4, the pipe connection mechanism of the present embodiment includes an outer joint 10, a pipe joint 20, an inner joint 30 and a pressing sleeve 40, wherein the pipe joint 20 is connected with the outer joint 10 in a threaded manner, and a rubber hose 50 is disposed on the pipe joint 20, and a medium on an apparatus body 200 can be transported to the outside through the rubber hose 50.
The inner joint 30 is attached to the apparatus body 200, the outer joint 10 is disposed in the cavity 31 of the inner joint 30 and partially protrudes downward relative to the cavity 31 of the inner joint 30, and the side of the outer joint 10 protruding out of the inner joint 30 is connected to the pipeline 210 of the apparatus body 200. In this embodiment, the outer joint 10 partially extends out of the inner joint 20 downward, and is fixed in a limiting manner by the nut 11. The pipe joint 20 is arranged in the cavity of the pressing sleeve 40 and extends outwards relative to the channel 41 formed on the pressing sleeve 40, and the rubber pipe 50 is connected to the side of the pipe joint 20 extending out of the channel 41 of the pressing sleeve 40. The pressure jacket 40 is connected in a threaded manner to the nipple 30.
In this embodiment, the outer side wall of the upper joint part 21 of the pipe joint 20 is matched with the inner side wall of the opening of the channel 41 of the press sleeve 40, and it can be realized that when the pipe joint 20 and the press sleeve 40 are assembled with each other, the outer side wall of the upper joint part 21 of the pipe joint 20 can be matched with the inner side wall of the opening of the channel 41 of the press sleeve 40, and the sealing of the channel 41 of the press sleeve 40 is realized. That is, after the outer joint 10, the pipe joint 20, the inner joint 30 and the pressure sleeve 40 of the present embodiment are assembled, the pipe joint 20 seals the passage 41 of the pressure sleeve 40.
Specifically, the outer side wall of the pipe joint 20 of the present embodiment is configured as an outer arc-shaped annular structure, the inner side wall of the opening of the channel 41 on the pressing sleeve 40 is configured as an inner arc-shaped annular structure matched with the outer side wall on the pipe joint 20, and the sealing of the channel 41 on the pressing sleeve 40 by the pipe joint 20 is realized by the close fit between the outer side wall on the pipe joint 20 and the inner side wall of the opening of the channel 41 on the pressing sleeve 30. In this embodiment, the outer side wall of the connecting tube portion 22 of the pipe joint 20 matches with the inner side wall of the channel 41 of the pressing sleeve 40, that is, when the pipe joint 20 and the pressing sleeve 40 are completely assembled, the portion of the pipe joint 20 located at the channel 41 of the pressing sleeve 40 is attached to the channel 41 of the pressing sleeve 40, so as to seal the channel 41 of the pressing sleeve 40 by the pipe joint 20. Further, the pressing sleeve 40 is fitted with a sealing ring (not shown) on the portion of the pressing sleeve 20 that fits the connecting tube portion 22, the sealing ring partially protrudes outward relative to the pressing sleeve 40 and is tightly fitted to the connecting tube portion 22 of the coupling 20, so as to ensure the sealing function of the coupling 20 against the passage 41 of the pressing sleeve 40 after the coupling 20 and the pressing sleeve 40 are assembled.
As can be seen from the above, the pressing sleeve 40 is screwed with the inner joint 30, and in combination with the sealing of the channel 41 of the pressing sleeve 40 by the pipe joint 20, so that after the pressing sleeve 40 and the inner joint 30 are assembled with each other, the pressing sleeve 40 and the inner joint 30 form a sealed chamber together, thereby achieving the resealing of the connection between the pipe joint 20 and the outer joint 10 and preventing the leakage or the leakage of the medium.
Specifically, an inner thread 42 is provided on an outer sidewall of the pressing sleeve 40, an outer thread 32 for matching the inner thread 42 on the outer sidewall of the pressing sleeve 40 is provided on an inner sidewall of the nipple 30, wherein a thread length of the inner thread 42 on the outer sidewall of the pressing sleeve 40 is smaller than a thread length of the outer thread 32 on the inner sidewall of the nipple 30, and when the pressing sleeve 40 is fixedly screwed with the nipple 30, an inner sidewall of an opening of the passage 41 on the pressing sleeve 40 is abutted against an outer sidewall of the joint part 21 of the pipe joint 20 assembled on the outer joint 10. That is, when the pressing sleeve 40 and the nipple 30 are assembled in place, the coupling portion 21 of the coupling 20 is engaged with the passage 41 of the pressing sleeve 40 and seals the passage 41 of the pressing sleeve 40.
In the pipe coupling of this embodiment, the pressing sleeve 40 is fitted over the coupling 20 in an inverted manner, and the coupling 20 is first screwed onto the outer joint 10, and then the pressing sleeve 40 is screwed onto the inner joint 30 until the pressing sleeve is screwed into place. It will be appreciated that when the pressing sleeve 40 and the inner joint 30 are screwed into place, the joint portion 21 of the pipe joint 20 will match with the opening of the channel 41 on the pressing sleeve 40 and achieve mechanical sealing, and the outer joint 10, the pipe joint 20, the inner joint 30 and the pressing sleeve 40 should be properly fitted. Therefore, when the pipe joint 20 and the outer joint 10 are loosened or not screwed in place during connection, the pressing sleeve 40 cannot be assembled with the inner joint 30, and accordingly, a tight seal cannot be realized between the joint part 21 of the pipe joint 20 and the channel 41 of the pressing sleeve 40, and the assembly between the pressing sleeve 40 and the inner joint 30 can be visually improved, so that the threaded assembly between the pressing sleeve 40 and the inner joint 30 of the present embodiment has a reverse checking function for the assembly between the pipe joint 20 and the outer joint 10, and the assembly between the pipe joint 20 and the outer joint 10 is ensured to be assembled in place.
In summary, the pipeline connecting mechanism claimed by the invention realizes one sealing of the outward connecting passage of the equipment body through the structural arrangement of the threaded connection between the pipe joint and the outer joint; the pressing sleeve, the inner joint and the pipe joint and the outer joint are reasonably arranged in a structure, so that two sealing of an outward connecting channel of the equipment body is realized; meanwhile, the pressing sleeve is assembled with the inner joint, and the pressing sleeve and the pipe joint and the outer joint realize the two-way sealing effect together, so that the assembly between the pipe joint and the outer joint is ensured to be in place, the sealing effect of the pipeline connecting mechanism is ensured, and further the field safety accidents of equipment caused by medium leakage and seepage are avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A pipe coupling mechanism, characterized by: comprises an outer joint, a pipe joint, an inner joint and a pressing sleeve; one side of the pipe joint is fixedly connected with an outer joint in a threaded manner, and the other side of the pipe joint is outwards connected with a rubber pipe; the inner joint is attached to the equipment body, the outer joint is arranged in the cavity of the inner joint and extends downwards relative to the cavity part of the inner joint, and one side of the outer joint, which extends out of the inner joint, is connected with a pipeline on the equipment body; the pipe joint is arranged in the concave cavity of the pressing sleeve and extends outwards relative to the channel part arranged on the pressing sleeve; the outer side wall of the upper joint part of the pipe joint is matched with the inner side wall of the opening of the upper channel of the pressing sleeve, and the pipe joint and the upper channel of the pressing sleeve are sealed when the pipe joint is assembled on the pressing sleeve; the pressing sleeve and the inner joint are connected and fixed in a threaded mode; the outer side wall of the pressing sleeve is provided with an internal thread, the inner side wall of the nipple is provided with an external thread used for matching the internal thread on the outer side wall of the pressing sleeve, the thread length of the internal thread on the outer side wall of the pressing sleeve is smaller than the thread length of the external thread on the inner side wall of the nipple, and when the pressing sleeve is fixedly connected with the nipple through threads, the inner side wall of the opening of the upper channel of the pressing sleeve is attached to the outer side wall of the joint part of the pipe joint assembled on the outer joint.
2. The pipeline connecting mechanism according to claim 1, wherein the outer side wall of the pipe joint is provided with an outer arc-shaped annular structure, the inner side wall of the opening of the channel on the pressing sleeve is provided with an inner arc-shaped annular structure matched with the outer side wall of the upper channel on the pipe joint, and the sealing of the pipe joint to the channel on the pressing sleeve is realized through the close fit between the outer side wall of the upper pipe joint and the inner side wall of the opening of the channel on the pressing sleeve.
3. The pipe coupling according to claim 1, wherein: the outer side wall of the connecting pipe part on the pipe joint is matched with the inner side wall of the channel on the pressing sleeve.
4. The pipe connection according to claim 3, wherein: the pressure sleeve is embedded with a sealing ring on the part matched with the connecting pipe part on the pipe joint, and the sealing ring protrudes outwards relative to the pressure sleeve part and is tightly matched with the connecting pipe part on the pipe joint.
5. The pipe coupling according to claim 1, wherein the outer joint extends downwardly beyond the inner joint and is held in place by a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810223829.6A CN108223933B (en) | 2018-03-19 | 2018-03-19 | Pipeline connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810223829.6A CN108223933B (en) | 2018-03-19 | 2018-03-19 | Pipeline connecting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108223933A CN108223933A (en) | 2018-06-29 |
| CN108223933B true CN108223933B (en) | 2019-12-24 |
Family
ID=62659728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810223829.6A Active CN108223933B (en) | 2018-03-19 | 2018-03-19 | Pipeline connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223933B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561625B (en) * | 2020-06-09 | 2025-04-04 | 东风汽车股份有限公司 | A composite sealing threaded elbow joint and its assembly process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842132Y (en) * | 2005-09-30 | 2006-11-29 | Tcl集团股份有限公司 | Pipeline connection joint |
| CN202746808U (en) * | 2012-09-05 | 2013-02-20 | 浙江远安流体设备有限公司 | Pipeline movable joint |
| US20160116093A1 (en) * | 2014-10-28 | 2016-04-28 | Larry Filipczak | Hose end fitting system for polyetrafluoroethylene (ptfe)-core hose |
| CN106287040A (en) * | 2015-06-10 | 2017-01-04 | 盐城拓铂油田设备有限公司 | A kind of triple seal union |
| CN205048017U (en) * | 2015-09-19 | 2016-02-24 | 柯成才 | Pipe connector |
-
2018
- 2018-03-19 CN CN201810223829.6A patent/CN108223933B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108223933A (en) | 2018-06-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191125 Address after: Room 222, No. 18, Zhenxing Road, Wanxiang Town, Pudong New Area, Shanghai Applicant after: Shanghai middle forest feedwater Materials Co., Ltd Address before: No. 162, Shengzhou City, Shengzhou City, Shaoxing, Zhejiang Applicant before: Yin Caifu |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |