CN102261530A - Seal connecting device of diesel engine fuel oil metal pipe - Google Patents
Seal connecting device of diesel engine fuel oil metal pipe Download PDFInfo
- Publication number
- CN102261530A CN102261530A CN2011101167802A CN201110116780A CN102261530A CN 102261530 A CN102261530 A CN 102261530A CN 2011101167802 A CN2011101167802 A CN 2011101167802A CN 201110116780 A CN201110116780 A CN 201110116780A CN 102261530 A CN102261530 A CN 102261530A
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- China
- Prior art keywords
- pipe
- diesel engine
- pipe joint
- seal
- nut
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- 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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- Gasket Seals (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a seal connecting device of a diesel engine fuel oil metal pipe. The device comprises a pipe nut and a pipe joint, wherein the pipe nut is installed on a diesel engine low-pressure fuel oil metal oil pipe; the pipe joint is matched with the pipe nut; the right end surface of the pipe nut is provided with an axial connecting groove; the connecting groove is internally provided with a connecting screw thread; and the connecting end of the pipe joint is positioned in the connecting groove and is provided with a screw thread which is matched with the connecting screw thread. The device provided by the invention belongs to the seal structure of the end surface of a rubber sleeve, a direct-through-type pipeline connecting structure is adopted, namely the metal oil pipeline is provided with the pipe nut and the seal rubber which are connected with the pipe joint, the space between the pipe nut and the pipe joint is sealed through compressing the seal rubber, the seal property requirement is satisfied, the connection is firm, and the oil leakage phenomenon caused by the cracking of the joint of the metal tubular product oil pipeline can not happen.
Description
Technical field
The present invention relates to a kind of connection set of liquid line, be specifically related to a kind of seal connection of diesel engine fuel oil metal tube.
Background technique
In the low-voltage fuel pipeline of diesel engine, general metal tube or rubber pipe or the nylon tube of adopting, the structure of radial type pipe coupling, gasket seal and hinge bolt is extensively adopted in its sealing that connects component, perhaps adopts sphere, the conical surface seal structure of spherical spinning in pipe joint.In order to guarantee the sealing of fuel pipe, need to adopt some sealing configurations, existing sealing configuration is simple increase seal ring, can not satisfy the requirement of sealability, and the metal pipe oil pipe is often insecure because of connecting simultaneously, the joint fracture occurs and oil leakage phenomenon.
Summary of the invention
At above-mentioned technical problem, the invention provides a kind of simple in structure, be connected firmly, the seal connection of the diesel engine fuel oil metal tube of good seal performance.
Realize that technological scheme of the present invention is as follows:
A kind of seal connection of diesel engine fuel oil metal tube, comprise the pipe nut that is installed on the diesel low-voltage fuel metal oil conduit, and the pipe joint that cooperates with the pipe nut, the right side of described pipe nut offers axial connecting groove, be provided with connecting thread in its connecting groove, the connecting end of described pipe joint is positioned at connecting groove and is provided with the screw thread that matches with connecting thread.
The connecting end of described pipe joint and the bottom of connecting groove are provided with sealing rubber cover, pipe joint with the pipe nut be connected put in place after, rubber sleeve is by pipe joint top withstanding tightly, the application of sealing rubber cover, the function that both can possess sealing, also can realize simultaneously the function of vibration damping, because rubber has good rebound elasticity, even repeat repeatedly, use for a long time and also do not influence its form.
Described sealing rubber cover adopts acrylate rubber to be made.
Adopted such scheme, the invention belongs to the rubber sleeve end face seal structure, and employing straight-through type pipeline connecting structure, promptly nut, caulking gum are managed in assembling on metal oil conduit, connect with pipe joint, by compression seal rubber the space in the middle of pipe nut and the pipe joint is sealed, satisfy the requirement of sealability, being connected firmly can not occur because of metal pipe oil pipe joint fracture oil leakage phenomenon.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure, 1 is metal oil conduit, and 2 are the pipe nut, and 3 is pipe joint, and 4 is axial connecting groove, and 5 is limiting stopper, and 6 is sealing rubber cover.
Embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of seal connection of diesel engine fuel oil metal tube, comprise the pipe nut 2 that is installed on the diesel low-voltage fuel metal oil conduit 1, and the pipe joint 3 that cooperates with pipe nut 2, the pipe nut is screwed onto on the metal oil conduit and metal oil conduit is provided with the spacing limiting stopper 5 of pipe nut, the right side of pipe nut 2 offers axial connecting groove 4, the internal groove side wall of its connecting groove is provided with connecting thread, the connecting end of pipe joint is positioned at connecting groove and is provided with the screw thread that matches with connecting thread, thereby pipe joint is by two firm being connected on the pipe nut of the screw thread that matches.The connecting end of pipe joint and the bottom of connecting groove are provided with sealing rubber cover 6.Sealing rubber cover adopts acrylate rubber to be made.
Claims (3)
1. the seal connection of a diesel engine fuel oil metal tube, comprise the pipe nut that is installed on the diesel low-voltage fuel metal oil conduit, and the pipe joint that cooperates with the pipe nut, it is characterized in that: the right side of described pipe nut offers axial connecting groove, be provided with connecting thread in its connecting groove, the connecting end of described pipe joint is positioned at connecting groove and is provided with the screw thread that matches with connecting thread.
2. the seal connection of a kind of diesel engine fuel oil metal tube according to claim 1 is characterized in that: the connecting end of described pipe joint and the bottom of connecting groove are provided with sealing rubber cover.
3. the seal connection of a kind of diesel engine fuel oil metal tube according to claim 1 is characterized in that: described sealing rubber cover adopts acrylate rubber to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101167802A CN102261530A (en) | 2011-05-06 | 2011-05-06 | Seal connecting device of diesel engine fuel oil metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101167802A CN102261530A (en) | 2011-05-06 | 2011-05-06 | Seal connecting device of diesel engine fuel oil metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261530A true CN102261530A (en) | 2011-11-30 |
Family
ID=45008286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101167802A Pending CN102261530A (en) | 2011-05-06 | 2011-05-06 | Seal connecting device of diesel engine fuel oil metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102261530A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350369A (en) * | 2013-07-03 | 2013-10-16 | 无锡宇吉科技有限公司 | Dismountable bidirectional oil injection pipe |
| CN104832728A (en) * | 2014-02-06 | 2015-08-12 | 玛珂系统分析和开发有限公司 | Connection system |
| CN107110087A (en) * | 2014-12-22 | 2017-08-29 | 罗伯特·博世有限公司 | The device of fuel injection apparatus and the connection component of metal sealing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268825Y (en) * | 1996-08-29 | 1997-11-26 | 王力人 | Sealed connection structure of adjustable meter joint-pipe |
| US20020101079A1 (en) * | 1999-11-30 | 2002-08-01 | Dieter Ehrke | Pipe connector and a method for production thereof |
| JP2005009394A (en) * | 2003-06-18 | 2005-01-13 | Usui Kokusai Sangyo Kaisha Ltd | Connection structure for common rail branch connector |
| CN101469798A (en) * | 2007-12-29 | 2009-07-01 | 广西玉柴机器股份有限公司 | Sealing structure of diesel low-voltage fuel metal oil conduit and mounting method thereof |
| CN201368275Y (en) * | 2009-01-13 | 2009-12-23 | 杨正 | Device for connecting and sealing tube port |
| CN202065566U (en) * | 2011-05-06 | 2011-12-07 | 常州常瑞天力动力机械有限公司 | Sealing connection device of metal fuel pipe of diesel engine |
-
2011
- 2011-05-06 CN CN2011101167802A patent/CN102261530A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268825Y (en) * | 1996-08-29 | 1997-11-26 | 王力人 | Sealed connection structure of adjustable meter joint-pipe |
| US20020101079A1 (en) * | 1999-11-30 | 2002-08-01 | Dieter Ehrke | Pipe connector and a method for production thereof |
| JP2005009394A (en) * | 2003-06-18 | 2005-01-13 | Usui Kokusai Sangyo Kaisha Ltd | Connection structure for common rail branch connector |
| CN101469798A (en) * | 2007-12-29 | 2009-07-01 | 广西玉柴机器股份有限公司 | Sealing structure of diesel low-voltage fuel metal oil conduit and mounting method thereof |
| CN201368275Y (en) * | 2009-01-13 | 2009-12-23 | 杨正 | Device for connecting and sealing tube port |
| CN202065566U (en) * | 2011-05-06 | 2011-12-07 | 常州常瑞天力动力机械有限公司 | Sealing connection device of metal fuel pipe of diesel engine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350369A (en) * | 2013-07-03 | 2013-10-16 | 无锡宇吉科技有限公司 | Dismountable bidirectional oil injection pipe |
| CN103350369B (en) * | 2013-07-03 | 2016-12-28 | 盐城市荣嘉机械制造有限公司 | Detachable two-way spray bar |
| CN104832728A (en) * | 2014-02-06 | 2015-08-12 | 玛珂系统分析和开发有限公司 | Connection system |
| CN107110087A (en) * | 2014-12-22 | 2017-08-29 | 罗伯特·博世有限公司 | The device of fuel injection apparatus and the connection component of metal sealing |
| CN107110087B (en) * | 2014-12-22 | 2021-04-27 | 罗伯特·博世有限公司 | Device for fuel injection system and metal-sealed connecting assembly |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111130 |