CN202100850U - Connection structure for pipe fittings - Google Patents
Connection structure for pipe fittings Download PDFInfo
- Publication number
- CN202100850U CN202100850U CN2011201688078U CN201120168807U CN202100850U CN 202100850 U CN202100850 U CN 202100850U CN 2011201688078 U CN2011201688078 U CN 2011201688078U CN 201120168807 U CN201120168807 U CN 201120168807U CN 202100850 U CN202100850 U CN 202100850U
- Authority
- CN
- China
- Prior art keywords
- pipe
- ring
- annular
- attaching nut
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Joints With Pressure Members (AREA)
Abstract
The utility model relates to a connection structure for pipe fittings, which comprises a pipe connector, a pipe and a connecting nut. An internal thread is arranged on an inner ring of the outer end of the pipe connector, an outer ring of the connecting nut is provided with an external thread matched with the internal thread, the connecting nut is screwed into the pipe connector, the pipe penetrates through the connecting nut to be inserted into the pipe connector, and an annular protrusion is arranged on an outer ring of the end of the pipe. The end of the connecting nut is abutted to the annular protrusion, and an annular seal ring is disposed on the outer wall of the pipe in front of the annular protrusion and abutted to a first annular slope which is arranged on the inner ring of the pipe connector. The connection structure for pipe fittings is simple in structure, convenient to use, better in anti-pulling and sealing performances, and production cost is reduced.
Description
Technical field
The utility model relates to the linkage structure of pipe.
Background technique
Conventional pipelines and link thereof are threaded usually or groove type connects; Be connected firmly for reaching, tight, non-leakage purpose, need open hinge screw thread or open channels to tube end so that be connected, so just damaged, weakened the intensity of tube end with internal thread or groove, directly influence the anti-pull performance of pipe connection.In addition, be threaded or the groove type connection for direct employing, the connection sealing of pipe is not fine, occurs easily leaking yet.Also have, just save the material aspect and consider that this kind Placement suitably reduces wall thickness under the prerequisite that satisfies pipe intensity, help controlling cost, improve the competitiveness of product in market.
Summary of the invention
In order to solve above-mentioned pipe Placement anti-pull and the bad technological deficiency of sealability, the purpose of the utility model provides a kind of linkage structure of pipe fitting, and this structure has all characteristics preferably of anti-pull and sealability, has reduced production cost simultaneously.
In order to realize above-mentioned purpose, the technological scheme below the utility model has adopted:
A kind of linkage structure of pipe fitting, this structure is made up of pipe joint, pipe and attaching nut, and the outer end inner ring of described pipe joint is provided with internal thread; Attaching nut's outer ring is provided with the outside thread that matches with internal thread; The attaching nut is screwed in the pipe joint, and described pipe passes the attaching nut and is plugged in the pipe joint, and the outer ring, end of pipe is provided with annular protrusion; Attaching nut's end and described annular protrusion offset; On the tube outer wall of annular protrusion front portion, be provided with O-ring seal, and be provided with first annular slope at the inner ring of pipe joint, the O-ring seal and first annular slope offset.
As further improvement, the outside of described annular protrusion is second annular slope, and inner ring is provided with the 3rd annular slope in attaching nut's end, and attaching nut's end and described annular protrusion offset through second annular slope and the 3rd annular slope.
As further improvement, described O-ring seal is provided with shape inclined-plane, Fourth Ring, and shape inclined-plane, Fourth Ring and described first annular slope offset.
As further improvement, shape inclined-plane, described Fourth Ring is provided with a plurality of convexities, and on the face that offsets with tube outer wall, is provided with a plurality of recesses.
As further improvement, described pipe is a metal tube, and described annular protrusion and circular groove form through extruding or diffusion.
As further improvement, the inner ring inboard of described pipe joint is provided with the protruding circle of annular stop.The protruding circle of annular stop can be used to stop the pipe axial motion.
Above-mentioned pipe joint is isometrical straight tube, 45 ° of bend pipes or 90 ° of bend pipes; Perhaps, pipe joint is the straight tube of reducing, 45 ° of bend pipes or 90 ° of bend pipes; Certainly, pipe joint also can be straight tee, reducer tee piece, straight cross pipe or reducing cross pipe.
The utility model has been owing to adopted above-mentioned technological scheme, after pipe is inserted into pipe joint, and the attaching nut that screws, attaching nut's end roof pressure annular protrusion closely cooperates annular protrusion anterior O-ring seal and first annular slope, realizes sealing.The utlity model has simple in structurely, easy to use, anti-pull and sealability be characteristics preferably all, have reduced production cost.
Description of drawings
Fig. 1 is the structural representation of model utility.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done a detailed explanation.
As shown in Figure 1; A kind of linkage structure of pipe fitting, this structure is made up of pipe joint 1, pipe 2 and attaching nut 3, and the outer end inner ring of described pipe joint 1 is provided with internal thread 5; Attaching nut 3 outer ring is provided with the outside thread 6 that matches with internal thread 5; Attaching nut 3 is screwed in the pipe joint 1, and described pipe 2 passes attaching nut 3 and is plugged in the pipe joint 1, and the inner ring inboard of pipe joint 1 is provided with the protruding circle 16 of annular stop that is used to stop pipe 2 axial motions.The outer ring, end of pipe 2 is provided with annular protrusion 7; The outside of annular protrusion 7 is second annular slope 10; And in attaching nut 3 end inner ring is provided with the 3rd annular slope 11, attaching nut 3 end and described annular protrusion 7 offset through second annular slope 10 and the 3rd annular slope 11.On the tube outer wall 8 of annular protrusion 7 front portions, be provided with O-ring seal 4; O-ring seal 4 is provided with a plurality of recesses 13 with the face that tube outer wall 8 offsets; O-ring seal 4 is provided with shape inclined-plane, Fourth Ring 12; Shape inclined-plane, Fourth Ring 12 is provided with a plurality of protruding 14, and is provided with shape inclined-plane, first annular slope, 9, the Fourth Ring 12 at the inner ring of pipe joint and offsets with described first annular slope 9.
Above-mentioned pipe 2 is a metal tube, and described annular protrusion 7 forms through extruding or diffusion with circular groove 8.Above-mentioned pipe joint 1 is isometrical straight tube, 45 ° of bend pipes or 90 ° of bend pipes; Perhaps, pipe joint 1 is the straight tube of reducing, 45 ° of bend pipes or 90 ° of bend pipes; Certainly, pipe joint 1 also can be straight tee, reducer tee piece, straight cross pipe or reducing cross pipe.
When using, after pipe 2 is inserted into pipe joint 1, the attaching nut 3 that screws, attaching nut 3 end roof pressure annular protrusion 7 closely cooperates the annular protrusion 7 anterior O-ring seal 4 and first annular slopes 9, realizes sealing.
Claims (9)
1. the linkage structure of a pipe fitting; This structure is made up of pipe joint (1), pipe (2) and attaching nut (3); It is characterized in that: the outer end inner ring of pipe joint (1) is provided with internal thread (5), and attaching nut's (3) outer ring is provided with the outside thread (6) that matches with internal thread (5), and attaching nut (3) is screwed in the pipe joint (1); Described pipe (2) passes attaching nut (3) and is plugged in the pipe joint (1); The outer ring, end of pipe (2) is provided with annular protrusion (7), and attaching nut's (3) end and described annular protrusion (7) offset, and on pipe (2) outer wall (8) of annular protrusion (7) front portion, is provided with O-ring seal (4); And being provided with first annular slope (9) at the inner ring of pipe joint (1), O-ring seal (4) offsets with first annular slope (9).
2. the linkage structure of a kind of pipe fitting according to claim 1; It is characterized in that: the outside of annular protrusion (7) is second annular slope (10); And being provided with the 3rd annular slope (11) at attaching nut's (3) end inner ring, attaching nut's (3) end and described annular protrusion (7) offset through second annular slope (10) and the 3rd annular slope (11).
3. the linkage structure of a kind of pipe fitting according to claim 1, it is characterized in that: O-ring seal (4) is provided with shape inclined-plane, Fourth Ring (12), and shape inclined-plane, Fourth Ring (12) offsets with described first annular slope (9).
4. the linkage structure of a kind of pipe fitting according to claim 3, it is characterized in that: shape inclined-plane, Fourth Ring (12) is provided with a plurality of convexities (14), and on the face that offsets with tube outer wall (8), is provided with a plurality of recesses (13).
5. the linkage structure of a kind of pipe fitting according to claim 1, it is characterized in that: pipe (2) is a metal tube, described annular protrusion (7) forms through extruding or diffusion.
6. the linkage structure of a kind of pipe fitting according to claim 1, it is characterized in that: the inner ring inboard of pipe joint (1) is provided with the protruding circle of annular stop (15).
7. according to the linkage structure of any described a kind of pipe fitting of claim of claim 1～5, it is characterized in that: pipe joint (1) is isometrical straight tube, 45 ° of bend pipes or 90 ° of bend pipes.
8. according to the linkage structure of any described a kind of pipe fitting of claim of claim 1～5, it is characterized in that: pipe joint (1) is the straight tube of reducing, 45 ° of bend pipes or 90 ° of bend pipes.
9. according to the linkage structure of any described a kind of pipe fitting of claim of claim 1～5, it is characterized in that: pipe joint (1) is straight tee, reducer tee piece, straight cross pipe or reducing cross pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201688078U CN202100850U (en) | 2011-05-25 | 2011-05-25 | Connection structure for pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201688078U CN202100850U (en) | 2011-05-25 | 2011-05-25 | Connection structure for pipe fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100850U true CN202100850U (en) | 2012-01-04 |
Family
ID=45386864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201688078U Expired - Lifetime CN202100850U (en) | 2011-05-25 | 2011-05-25 | Connection structure for pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958699A (en) * | 2017-05-25 | 2017-07-18 | 无锡市金羊管道附件有限公司 | A kind of shock-proof connector |
| CN109237159A (en) * | 2018-11-20 | 2019-01-18 | *** | A kind of stainless steel joint for pipeline |
-
2011
- 2011-05-25 CN CN2011201688078U patent/CN202100850U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958699A (en) * | 2017-05-25 | 2017-07-18 | 无锡市金羊管道附件有限公司 | A kind of shock-proof connector |
| CN109237159A (en) * | 2018-11-20 | 2019-01-18 | *** | A kind of stainless steel joint for pipeline |
| CN109237159B (en) * | 2018-11-20 | 2020-06-19 | *** | Stainless steel pipe joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203686406U (en) | Pipe fitting joint structure | |
| CN204083570U (en) | Pipe fitting union | |
| CN201074712Y (en) | Leak-proof quick joint for pipe | |
| CN202100850U (en) | Connection structure for pipe fittings | |
| CN202100849U (en) | Connecting structure of spinning pipe fitting | |
| WO2008077013A3 (en) | Connection of tubes for air conditioning and seal adapted thereto | |
| CN102261533A (en) | Pipe with flange plate | |
| CN201096241Y (en) | Pipeline enlarging jointing construction | |
| CN201858454U (en) | Splicing pipe connecting pipe fitting with bushing | |
| CN203703422U (en) | Ferrule sealing connection structure | |
| CN202176841U (en) | Straight thread type pipeline connector | |
| CN202852248U (en) | Insert-type pipeline connecting assembly | |
| CN202082545U (en) | Fuel gas pipe joint with tapered sealing ring | |
| CN202972261U (en) | Water pipe connector | |
| CN2934372Y (en) | Non-corrodible steel conduit coupling assembly for water-supply | |
| CN105156781A (en) | Simple type thin-wall stainless steel pipe connection structure | |
| CN201014124Y (en) | Large caliber plastic-aluminum pipe connection | |
| CN2364306Y (en) | Insertion type connecting pipe fitting for pipeline | |
| CN105333252B (en) | Pipe joint | |
| CN202992502U (en) | Detachable plastic pipe connector | |
| CN202074169U (en) | Press fitting pipe elbow | |
| CN201772172U (en) | Oil feeding pipe joint | |
| CN202546079U (en) | Telescopic flexible pipe piece | |
| CN202674611U (en) | Anti-leakage screwed connecting piece | |
| CN205877469U (en) | Brake master cylinder cup oil feed rubber tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |