CN2270873Y - Plastic hose sealed joint - Google Patents
Plastic hose sealed joint Download PDFInfo
- Publication number
- CN2270873Y CN2270873Y CN 96236340 CN96236340U CN2270873Y CN 2270873 Y CN2270873 Y CN 2270873Y CN 96236340 CN96236340 CN 96236340 CN 96236340 U CN96236340 U CN 96236340U CN 2270873 Y CN2270873 Y CN 2270873Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- cone
- sealed
- flexible pipe
- plastic hose
- 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
Links
Abstract
The utility model relates to a plastic hose sealed joint, which comprises an outer screw head, a pressing nut, a sealed member, etc. The utility model is characterized in that the sealed member is a plastic cement cone with a corresponding front big head and a back big head; the sealing member is provided with an inner hole for the plastic hose to penetrate through along the shaft line direction; the sealed surfaces of the outer screw head and the pressing nut matched with the front and the back cones correspondingly adopt concave conical surfaces; the surface of the inner hole of the back cone can be provided with tooth threads capable of engaging the plastic hose. The joint has the advantages of seal, reliable connection, simple structure, easy assembly and convenient operation. When the pressure of the fluid rises, the sealing performance is increased accordingly to fundamentally overcome the defect of easy leakage under the high pressure of the traditional sealed structure. The utility model is very suitable for being used for a domestic water purifier and other hoses.
Description
The utility model relates to union, particularly a kind of plastic flexible pipe SEALING FITTING.
Have the connection of plastic flexible pipe now or adopt bonding method, or adopt the form of union.The tradition union generally comprises the outside thread head, gland nut and sealing gasket etc., and this class sealing gasket is plain cushion, and is very high to the valve body requirement on machining accuracy, but still leaks easily under high-pressure situations.The installation of existing union often needs to carry out the mantle fiber operation, makes installation very inconvenient.
The purpose of this utility model is the above-mentioned deficiency that will overcome prior art, and a kind of plastic flexible pipe joint of simple in structure, easy for installation, good seal performance is provided.
Solution of the present utility model comprises outside thread head, gland nut and Sealing etc., it is characterized in that said Sealing is the relative plastic cement cones of former and later two major parts, has the endoporus that passes for plastic flexible pipe along its axial direction; The sealing surface that outside thread head and gland nut cooperate with forward and backward cone correspondingly adopts recessed conical surface.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the longitudinal section of plastic flexible pipe SEALING FITTING
Referring to accompanying drawing, plastic flexible pipe 2 inserts in outside thread head 1, gland nut 5 and the forward and backward seal cones 3,4.Rotatably compressing nut 5 fits the preceding seal cones 3 and the concave cone face 32 of outside thread head; The back seal cones 4 and the concave cone face 42 of gland nut 5 are fitted.When screwing nut 5, seal cones 3,4 and concave cone face 32,42 fit tightly, and have blocked the passage that leaks along the conical surface.The squeezing action that while seal cones 3,4 is subjected to the center, endoporus dwindles, and tightly pushes down plastic flexible pipe 2, has blocked the passage that leaks along hose surface.When in the flexible pipe high-pressure liquid being arranged, flexible pipe further expands, and makes sealing surface press tightlyer, so pressure is when high more, and sealability is good more.
For being connected and seal action between further enhanced leaktightness cone 3,4 and the flexible pipe 2, be provided with tiny tooth line 43 at the bore area of back cone 4, when compressing, can bite the outer surface of plastic flexible pipe, and produce slight impression.The High Voltage of this part helps to improve the reliability of sealing and connection.Also can be provided with the annular crown (33) that inwardly stretches out at the place, aperture of front cone 3 equally.
Tail end 9 diameters of back seal cones 4 are less, can stretch in the pore 10 of gland nut 5 tail ends, help improving the soundness of connection.
The above-mentioned plastic cement cone that seals 3,4 preferably adopts nylon or moisture nylon to make, and its hardness is a little more than polythene flexible pipe 2.Gland nut and outside thread head then can adopt materials such as plastics, brass or stainless steel to make.
This joint sealing, connect reliable, simple in structure, be convenient to dismounting, extremely easy to use.When hydrodynamic pressure raise, sealability improved thereupon, had fundamentally overcome the shortcoming that conventional seals structure high pressure easily leaks down.Be particularly suitable for using on household water filter and other flexible pipe.
Claims (5)
1, plastic flexible pipe SEALING FITTING, comprise outside thread head (1), gland nut (5) and Sealing, it is characterized in that said Sealing is the relative plastic cement cone of former and later two major parts (3,4), have the endoporus that passes for plastic flexible pipe (2) along its axial direction; The sealing surface that outside thread head (1) and gland nut (5) cooperate with forward and backward cone (3), (4) correspondingly adopts recessed conical surface (32), (42).
2, SEALING FITTING as claimed in claim 1 is characterized in that the bore area of said back cone (4) is provided with the tooth line (43) of biting plastic flexible pipe (2).
3, SEALING FITTING as claimed in claim 1 or 2 is characterized in that the place, aperture of said front cone (3) is provided with the annular crown (33) that inwardly stretches out.
4, SEALING FITTING as claimed in claim 1 is characterized in that said former and later two plastic cement cones (3), (4) are to make with nylon or moisture nylon.
5, SEALING FITTING as claimed in claim 1 is characterized in that tail end (9) diameter of said back seal cones (4) is less, can stretch in the pore (10) of gland nut (5) tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236340 CN2270873Y (en) | 1996-10-15 | 1996-10-15 | Plastic hose sealed joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236340 CN2270873Y (en) | 1996-10-15 | 1996-10-15 | Plastic hose sealed joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2270873Y true CN2270873Y (en) | 1997-12-17 |
Family
ID=33912191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96236340 Expired - Fee Related CN2270873Y (en) | 1996-10-15 | 1996-10-15 | Plastic hose sealed joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2270873Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893145A (en) * | 2010-08-06 | 2010-11-24 | 芜湖市双虎塑管有限公司 | Hose connector |
| CN110013236A (en) * | 2019-03-27 | 2019-07-16 | 浙江糖链科技有限公司 | A kind of remotely control blood pressure instrument and its long-range control method |
-
1996
- 1996-10-15 CN CN 96236340 patent/CN2270873Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893145A (en) * | 2010-08-06 | 2010-11-24 | 芜湖市双虎塑管有限公司 | Hose connector |
| CN110013236A (en) * | 2019-03-27 | 2019-07-16 | 浙江糖链科技有限公司 | A kind of remotely control blood pressure instrument and its long-range control method |
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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 |