CN109099237A - A kind of pipe fitting - Google Patents
A kind of pipe fitting Download PDFInfo
- Publication number
- CN109099237A CN109099237A CN201811134699.5A CN201811134699A CN109099237A CN 109099237 A CN109099237 A CN 109099237A CN 201811134699 A CN201811134699 A CN 201811134699A CN 109099237 A CN109099237 A CN 109099237A
- Authority
- CN
- China
- Prior art keywords
- tube body
- shoulder
- tightening nut
- pipe fitting
- inner ring
- 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.)
- Pending
Links
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 Pressure Members (AREA)
Abstract
Present invention discloses a kind of pipe fittings, including fitting body (10), tube body (30) and the tightening nut (50) being sheathed on the tube body (30), the fitting body (10) is provided with the first mating surface (13), the tube body (30) is provided with the second mating surface (32) with first mating surface (13) cooperation, the tightening nut (50) connects and tenses the fitting body (10) and tube body (30), the tube body (30) is provided with shoulder (34), the tightening nut (50) is provided with the inner ring (52) with the tube body (30) cooperation sealing, gap (58) are formed between the shoulder (34) and the inner surface (54) of the tightening nut (50), between being formed between the shoulder (34) and the inner ring (52) and be described The cavity (59) that gap (58) is connected, the pipe fitting further include the multiple elastic components (70) being arranged between the shoulder (34) and the inner ring (52).
Description
Technical field
The present invention relates to a kind of pipe fittings.
Background technique
Pipe fitting is connecting line or the part by pipeline on Hydraulic Elements in hydraulic system, is widely used in liquid
In pressure system, hydraulic coupler often mainly has flat seal and conical surface seal with seal form.Fig. 1 shows the prior art
The common pipe fitting of middle one kind comprising fitting body 10, tube body 30 and tightening nut 100, tightening nut 100 make fitting body 10
It is mutually pushed against with tube body 30, completes the connection of fitting body 10 and tube body 30, however in use for some time or vibrate
Afterwards, tightening nut 100, which is easy to happen, loosens, and causes poorly sealed and reveals.
Summary of the invention
It is an object of the invention in view of the above-mentioned drawbacks in the prior art, provide a kind of pipe fitting, nut is not easy pine
De- and sealing performance is more preferable.
For achieving the above object, present invention employs following technical solutions: a kind of pipe fitting, including fitting body, pipe
Body and the tightening nut being sheathed on the tube body, the fitting body are provided with the first mating surface, and the tube body is provided with and institute
The second mating surface of the first mating surface cooperation is stated, the tightening nut connects and tense the fitting body and tube body, the tube body
It is provided with shoulder, the tightening nut is provided with the inner ring with tube body cooperation sealing, the shoulder and the tightening nut
Inner surface between form gap, the cavity that is connected with the gap, the pipe are formed between the shoulder and the inner ring
Connector further includes the multiple elastic components being arranged between the shoulder and the inner ring.
In addition, the present invention also proposes following attached technical scheme:
The multiple elastic component be evenly distributed on centered on the tightening nut center shoulder and the inner ring it
Between.
The inner ring medial surface is provided with the mounting groove for accommodating the elastic component.
The shoulder side offers the mounting hole for accommodating the elastic component.
Sealing ring is provided between the inner ring and the tube body.
The elastic component is spring.
First mating surface and second mating surface are the conical surface.
The connector external surface is provided with fastening thread, and the tightening nut is provided with and fastening thread cooperation
Internal screw thread.
Compared with the prior art, the present invention has the advantages that pipe fitting of the invention by tightening nut and tube body it
Between elastic component is set, the restoring force of elastic component can reinforce being engaged between tube body and fitting body, and to screw spiral shell
Mother is not easy to loosen, and vibration resistance is strong, and leakproofness is more preferably；Meanwhile when revealing generation, fitting body can be made by the fluid pressure of leakage
It is mutually abutted with tube body, reduces or eliminates leakage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pipe fitting in the prior art.
Fig. 2 is the structural schematic diagram of pipe fitting in the present invention.
Fig. 3 is the left view of tightening nut in the present invention.
Fig. 4 is the right view of middle tube body of the present invention.
Fig. 5 is the enlarged drawing in the portion A in Fig. 2.
Specific embodiment
In conjunction with the preferred embodiment and its attached drawing is further non-limitingly described in detail technical solution of the present invention.
As shown in Figures 2 to 4, corresponding to a kind of pipe fitting of preferred embodiment of the present invention comprising fitting body 10, tube body
30, tightening nut 50 and elastic component 70.
As shown in figure 3,10 one end of fitting body is provided with the pipe screw thread 11 connecting with metal tube (not shown), there is section at middle part
Hexagonal fastening position 12 helps to load and unload when installing the pipe fitting using the tools of grade clamping fastening position 12 living of pulling；
Fitting body 10 further includes that the first mating surface 13 of its other end is arranged in and is arranged in the first mating surface 13 and secure component 12
Between fastening thread 14.
Tube body 30 includes pipe portion 31 and the annular shoulder 34 that 31 one end evagination of pipe portion is arranged in, and the end is additionally provided with
The second mating surface 32 matched with the first mating surface 13.First mating surface 13 and the second mating surface 32 can be mutually matched
Perpendicular is also possible to such as the conical surface matched in the present embodiment.The outer peripheral surface of shoulder 34 and the interior table of tightening nut 50
Gap 58 is formed between face 54.
Tightening nut 50 is set on tube body 30, inner surface be provided with the internal screw thread 51 that is matched with fastening thread 14 with
And inwardly projecting inner ring 52.The outer surface of inner ring 52 and pipe portion 31, which cooperates, to be sealed, and be can be and is protected by high-precision processing
The cooperation precision of inner ring 52 and pipe portion 31 is demonstrate,proved, or can be close by way of sealing ring 55 is set between inner ring 52 and pipe portion 31
The combination of envelope or two ways.The cavity 59 communicated with gap 58 is formed between shoulder 34 and inner ring 52.
Elastic component 70 is arranged between tightening nut 50 and tube body 30, specific to be arranged between shoulder 34 and inner ring 52.
Multiple mounting holes 35 are offered on the right side of shoulder 34 36, are 6 in the present embodiment, mounting hole 35 is preferably with tightening nut
It is uniformly distributed in centered on 50 centers on shoulder 34.To obtain uniform stressed；Annulus is provided on the medial surface 57 of inner ring 52
The mounting groove 56 of shape, mounting groove 56 is corresponding with mounting hole 35, and elastic component 70 is mounted between mounting hole 35 and mounting groove 56.Bullet
Property part 70 be preferably spring.
After the first, second mating surface 13,32 is in contact, turn tightening nut 50 makes tightening nut 50 towards fitting body
10 is mobile, and inner ring 52 will oppress elastic component 70, and deformation occurs, and to generate extruding between the first, second mating surface 13,32
Power.After being installed, the elastic restoring force of elastic component 70 persistently can apply pressure to inner ring 52 and shoulder 34, and shoulder 34 will be by
Thrust to the left.And inner ring 52 will receive power to the right, and the power to the right can further be conducted to fitting body 10, so that connector
Body 10 is cooperated more secured between such first, second mating surface 13,32 by power to the right.Moreover, internal screw thread 51 and fastening
Also will be persistently by the elastic restoring force between screw thread 14, so that tightening nut 50 is not easy to loosen, vibration resistance is stronger, more firm
It leans on.
The present invention another advantage is that, when the first, second mating surface 13,32 generates gap after leak, liquid will be from
Gap 58 flows into cavity 59, and the fluid pressure in cavity 59 will act on the right side 36 of shoulder 34, generate push tube body 30 to
A left side can offset the liquid strength f that part pushes to the right tube body 30 open against the motive force F of fitting body 10, when spring force with push away
When power F is greater than liquid strength f, the first, second mating surface 13,32 will be abutted together again, keep sealing.As it can be seen that this pipe
Connector only needs lesser spring force that the first, second mating surface 13,32 can be made reliably to push against, will not ten even if revealing
Divide serious.
Pipe fitting of the invention can be added by the way that elastic component, the restoring force of elastic component are arranged between tightening nut and tube body
Being engaged between strong tube body and fitting body, and tightening nut is made to be not easy to loosen, vibration resistance is strong, and leakproofness is more preferably；Together
When, when revealing generation, fitting body and tube body can be made mutually to abut by the fluid pressure of leakage, reduce or eliminate leakage.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
Those skilled in the art can understand the contents of the present invention and implements accordingly, and protection of the invention can not be limited with this
Range.Any equivalent change or modification in accordance with the spirit of the invention should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of pipe fitting, including fitting body (10), tube body (30) and the tightening nut (50) being sheathed on the tube body (30),
The fitting body (10) is provided with the first mating surface (13), and the tube body (30) is provided with to be cooperated with first mating surface (13)
The second mating surface (32), the tightening nut (50), which connects, simultaneously tenses the fitting body (10) and tube body (30), and feature exists
In: the tube body (30) is provided with shoulder (34), and the tightening nut (50) is provided with and the tube body (30) cooperation sealing
Gap (58) are formed between the inner surface (54) of inner ring (52), the shoulder (34) and the tightening nut (50), the shoulder
(34) cavity (59) being connected with the gap (58) is formed between the inner ring (52), the pipe fitting further includes setting
Multiple elastic components (70) between the shoulder (34) and the inner ring (52).
2. according to pipe fitting described in claim 1, it is characterised in that: the multiple elastic component (70) is with the tightening nut (50)
It is evenly distributed on centered on center between the shoulder (34) and the inner ring (52).
3. according to pipe fitting described in claim 1, it is characterised in that: inner ring (52) medial surface is provided with the accommodating elasticity
The mounting groove (56) of part (70).
4. according to pipe fitting described in claim 1, it is characterised in that: shoulder (34) side offers the accommodating elastic component
(70) mounting hole (35).
5. according to pipe fitting described in claim 1, it is characterised in that: be provided between the inner ring (52) and the tube body (30)
Sealing ring (55).
6. according to any one of claim 1 to 5 pipe fitting, it is characterised in that: the elastic component (70) is spring.
7. according to pipe fitting described in claim 1, it is characterised in that: first mating surface (13) and second mating surface
It (32) is the conical surface.
8. according to pipe fitting described in claim 1, it is characterised in that: fitting body (10) outer surface is provided with fastening thread
(14), the tightening nut (50) is provided with the internal screw thread with the fastening thread (14) cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134699.5A CN109099237A (en) | 2018-09-28 | 2018-09-28 | A kind of pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134699.5A CN109099237A (en) | 2018-09-28 | 2018-09-28 | A kind of pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109099237A true CN109099237A (en) | 2018-12-28 |
Family
ID=64867388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811134699.5A Pending CN109099237A (en) | 2018-09-28 | 2018-09-28 | A kind of pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099237A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3446504C1 (en) * | 1984-12-20 | 1986-05-15 | Jean Walterscheid Gmbh, 5204 Lohmar | Clamping-sealing ring |
| US5340163A (en) * | 1992-12-23 | 1994-08-23 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation (S.N.E.C.M.A.) | Safety sealing conduit connector |
| CN2271200Y (en) * | 1996-09-18 | 1997-12-24 | 陆朝强 | Internal spring type sealing joint |
| EP1568929A1 (en) * | 2004-02-25 | 2005-08-31 | KHS Maschinen- und Anlagenbau Aktiengesellschaft | Threaded pipe coupling |
| CN1288808C (en) * | 2003-06-20 | 2006-12-06 | 宇吕电子工业株式会社 | Coaxial connector |
| JP5723470B1 (en) * | 2014-07-15 | 2015-05-27 | 井上スダレ株式会社 | Pipe joint structure for refrigerant |
| CN106322008A (en) * | 2016-09-25 | 2017-01-11 | 黄德修 | Pipe fitting |
| CN207178990U (en) * | 2017-08-24 | 2018-04-03 | 玉环燃具实业有限公司 | A kind of connector of gas bellows |
-
2018
- 2018-09-28 CN CN201811134699.5A patent/CN109099237A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3446504C1 (en) * | 1984-12-20 | 1986-05-15 | Jean Walterscheid Gmbh, 5204 Lohmar | Clamping-sealing ring |
| US5340163A (en) * | 1992-12-23 | 1994-08-23 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation (S.N.E.C.M.A.) | Safety sealing conduit connector |
| CN2271200Y (en) * | 1996-09-18 | 1997-12-24 | 陆朝强 | Internal spring type sealing joint |
| CN1288808C (en) * | 2003-06-20 | 2006-12-06 | 宇吕电子工业株式会社 | Coaxial connector |
| EP1568929A1 (en) * | 2004-02-25 | 2005-08-31 | KHS Maschinen- und Anlagenbau Aktiengesellschaft | Threaded pipe coupling |
| JP5723470B1 (en) * | 2014-07-15 | 2015-05-27 | 井上スダレ株式会社 | Pipe joint structure for refrigerant |
| CN106322008A (en) * | 2016-09-25 | 2017-01-11 | 黄德修 | Pipe fitting |
| CN207178990U (en) * | 2017-08-24 | 2018-04-03 | 玉环燃具实业有限公司 | A kind of connector of gas bellows |
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Legal Events
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181228 |
|
| RJ01 | Rejection of invention patent application after publication |