CN2804548Y - Pipe connection - Google Patents
Pipe connection Download PDFInfo
- Publication number
- CN2804548Y CN2804548Y CN 200520101689 CN200520101689U CN2804548Y CN 2804548 Y CN2804548 Y CN 2804548Y CN 200520101689 CN200520101689 CN 200520101689 CN 200520101689 U CN200520101689 U CN 200520101689U CN 2804548 Y CN2804548 Y CN 2804548Y
- Authority
- CN
- China
- Prior art keywords
- cutting ferrule
- nut
- joint
- fittings body
- clamping sleeve
- 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 - Fee Related
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- Joints With Pressure Members (AREA)
Abstract
The utility model relates to pipe joint, which comprises a hollow joint and a nut, wherein a pipe passes through the hollow points of the joint and the nut, and a clamping sleeve is positioned among the pipe, the joint and the nut. The back end of the clamping sleeve is a conical surface dovetailed with the nut, and the front end of the clamping sleeve is a cylindrical surface with a guide angle. The diameter of the cylindrical surface is not less than a conical hole opening of the joint. The front end of the clamping sleeve is provided with a step, and the guide angle on the front end of the clamping sleeve is inserted into the conical hole opening of the joint. Under the action of the extruding force of the nut, the end surface on the front end of the clamping sleeve generates the deformation. The whole conical hole inserted into the joint and extended to the step on the front end of the clamping sleeve is in contact with the conical hole opening of the joint. The end surface on the front end of the clamping sleeve of the utility model is also provided with a sealing ring to improve the sealing reliability and to avoid a leaking phenomenon.
Description
Technical field
The utility model belongs to engineering machinery field, employed pipe joint when specifically a kind of connection oil pipe and tracheae.
Background technique
In automobile, boats and ships and engineering mechanical device, there be being connected of many oil pipes and tracheae.Mostly adopt fittings body and a nut of a hollow, pipe is set in the middle vacancy of fittings body and nut, between pipe and fittings body, nut, also has a cutting ferrule, and there is tilted conical surface at the two ends of cutting ferrule.When screwing nut, the tilted conical surface at corresponding tilted conical surface extruding cutting ferrule two ends is arranged on fittings body and the nut, cutting ferrule is deformed, play effect fixing and sealing.The cutting ferrule of prior art pipe joint owing to be steel reason the assembling and docking operation, perhaps repeatedly dismounting, the reliability of sealing is bad, leaks easily.
Summary of the invention
The purpose of this utility model is the problem that exists at the aforementioned tube joint, designs a kind of elastic packing, reliable sealing pipe joint.
The purpose of this utility model is achieved in that pipe joint of the present utility model comprises fittings body and nut of a hollow, pipe is set in the middle vacancy of fittings body and nut, at pipe and fittings body, between nut, also has a cutting ferrule, the rear end of cutting ferrule is the conical surface that matches with nut, the front end of cutting ferrule is the cylndrical surface that diameter is not less than the fittings body conical orifice, have lead angle, the front end of cutting ferrule has individual step, the front end lead angle of cutting ferrule is inserted the conical orifice of fittings body, under the effect of nut extruding force, and the end face generation deformation of the front end of cutting ferrule, all enter the cone shape hole of fittings body, contact with the conical orifice of fittings body until the front end step of cutting ferrule; The end face of above-mentioned cutting ferrule front end is provided with seal ring; Above-mentioned seal ring and cutting ferrule are a kind of linking body structures.
Pipe joint of the present utility model, because the front end of cutting ferrule is inserted the conical orifice of fittings body, under the effect of nut extruding force, the end face generation deformation of the front end of cutting ferrule all enters the cone shape hole of fittings body, front end step until cutting ferrule contacts with the conical orifice of fittings body, the front end of cutting ferrule has definite amount of deformation, and the cutting ferrule front end is cut pipe under the effect of nut extruding force, and the end face of while at the front end of cutting ferrule also is provided with seal ring, improve the reliability of sealing, prevented leakage phenomenon.
Description of drawings
Fig. 1 is the mounting structure schematic representation of pipe joint of the present utility model.
Fig. 2 is the structural representation of the cutting ferrule of pipe joint of the present utility model.
Embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing:
As depicted in figs. 1 and 2, pipe joint of the present utility model comprises fittings body 1 and nut 7 of a hollow, pipe 8 is set in the middle vacancy of fittings body 1 and nut 8, at pipe 8 and fittings body 1,7 on nut also has a cutting ferrule 5, the front end of cutting ferrule 5 is the cylndrical surface 3 that is not less than fittings body 1 conical orifice, have lead angle, the front end of cutting ferrule 5 has individual step 4, the rear end of cutting ferrule 5 is the conical surfaces 6 that match with nut 7, the front end lead angle of cutting ferrule 5 is inserted the conical orifice of fittings body 1, under the effect of nut 7 extruding forces, deformation takes place in the end face 3 of the front end of cutting ferrule 5, all enter the cone shape hole of fittings body 1, contact with the conical orifice of fittings body 1 until the front end step 4 of cutting ferrule 5, the end face of above-mentioned cutting ferrule 5 front ends is provided with seal ring 2.
Claims (3)
1, a kind of pipe joint comprises the fittings body (1) and a nut (7) of a hollow, pipe (8) is set in the middle vacancy of fittings body (1) and nut (8), at pipe (8) and fittings body (1), also has a cutting ferrule (5) between nut (7), the rear end of cutting ferrule (5) is the conical surface (6) that matches with nut (7), the front end that it is characterized in that cutting ferrule (5) is for being not less than the cylndrical surface (3) of fittings body (1) conical orifice, have lead angle, the front end of cutting ferrule (5) has individual step (4), the front end lead angle of cutting ferrule (5) is inserted the conical orifice of fittings body (1), under the effect of nut (7) extruding force, deformation takes place in the end face (3) of the front end of cutting ferrule (5), all enter the cone shape hole of fittings body (1), contact with the conical orifice of fittings body (1) until the front end step (4) of cutting ferrule (5).
2, a kind of pipe joint according to claim 1 is characterized in that the end face of cutting ferrule (5) front end is provided with seal ring (2).
3, a kind of pipe joint according to claim 1 is characterized in that seal ring (2) and cutting ferrule (5) are a kind of linking body structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520101689 CN2804548Y (en) | 2005-04-19 | 2005-04-19 | Pipe connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520101689 CN2804548Y (en) | 2005-04-19 | 2005-04-19 | Pipe connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2804548Y true CN2804548Y (en) | 2006-08-09 |
Family
ID=36909839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520101689 Expired - Fee Related CN2804548Y (en) | 2005-04-19 | 2005-04-19 | Pipe connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2804548Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907539A (en) * | 2015-12-22 | 2017-06-30 | 政相工业有限公司 | Let out the joint structure of mouth |
| CN108700484A (en) * | 2015-09-08 | 2018-10-23 | 机械解析有限公司 | Matable assembly for analyzing application |
-
2005
- 2005-04-19 CN CN 200520101689 patent/CN2804548Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700484A (en) * | 2015-09-08 | 2018-10-23 | 机械解析有限公司 | Matable assembly for analyzing application |
| CN108700484B (en) * | 2015-09-08 | 2020-05-26 | 机械解析有限公司 | Mating assembly for an analytical system |
| CN106907539A (en) * | 2015-12-22 | 2017-06-30 | 政相工业有限公司 | Let out the joint structure of mouth |
| CN106907539B (en) * | 2015-12-22 | 2019-07-05 | 政相工业有限公司 | Let out the joint structure of mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |