CN2428673Y - Connection type pipe adaptor - Google Patents
Connection type pipe adaptor Download PDFInfo
- Publication number
- CN2428673Y CN2428673Y CN 00218123 CN00218123U CN2428673Y CN 2428673 Y CN2428673 Y CN 2428673Y CN 00218123 CN00218123 CN 00218123 CN 00218123 U CN00218123 U CN 00218123U CN 2428673 Y CN2428673 Y CN 2428673Y
- Authority
- CN
- China
- Prior art keywords
- joint body
- lining
- joint
- ring
- formula pipe
- 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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Abstract
The utility model discloses an insertion type pipe joint comprising a joint body, an injection inner layer arranged in the joint body, an elastic clamping ring, a clamping ring, a bush, a nut, etc. An O-shaped sealing ring is arranged between the periphery and the contact surface of the bush along the periphery of surface of the injection inner layer of the joint body. As the O-shaped ring has better elasticity, when the bush and a pipe are changed because of heat expansion and cold contraction, the O-shaped ring can accordingly follow to expand and contract; accordingly, the liquid leakage phenomenon cab not occur between the joint body and the bush, and the long-term and normal use of the pipe can be ensured. The utility model can be used for the connection of conveying pipes of oil, water or other liquids.
Description
The utility model relates to a kind of pipe joint that various pipes connects that is used for, and especially a kind of steel is moulded compound slotting formula pipe joint.
The conveyance conduit that slotting formula pipe joint is widely used in oil, water or other liquid connects, generally comprise joint body, place the interior injection moulding internal layer of joint body, rubber cushion blocks, snap ring, collar, lining, nut etc., the patent No. is that the utility model patent of ZL97241840.7 discloses a kind of " corrosion-resistant connected joint ".In existing various slotting formula pipe joints, between the injection moulding internal layer of joint body and lining, only prevent to leak with a rubber cushion blocks, because its elasticity is relatively poor, and the expansion and contraction of pipeline and lining is stronger, rubber cushion blocks can not correspondingly along with the contraction of pipe and lining shrink big or smallly, like this time one long, liquid spills between injection moulding internal layer and the lining in the joint body easily.In addition, owing to be clamped in the joint body by snap ring and fixed by nut between lining and connecting tube, do not establish sealing material in the middle of during connection, so liquid also easily spills by lining and pipeline enclosure, these all can influence long-term normal use of pipeline.
The purpose of this utility model be to provide a kind of can prevent effectively liquid between joint body and lining, the slotting formula pipe joint that spills between lining and connecting tube, thereby guarantee that pipeline can for a long time normally use.
For achieving the above object, slotting formula pipe joint of the present utility model comprises joint body, places the interior injection moulding internal layer of joint body, snap ring, collar, lining, nut etc., along on the surperficial periphery of described joint body injection moulding internal layer, between itself and lining surface of contact, be provided with an O-ring seals.
Above-mentioned slotting formula pipe joint is fixed with seal ring on the cartridge outer surface of described lining, be provided with O shape circle in the bottom in the described lining outside and the junction point of connecting tube.
Above-mentioned slotting formula pipe joint, the both sides of described snap ring are provided with two collars.
Adopted the slotting formula pipe joint of said structure, when pipeline connects, after the outside of pipeline puts snap ring, collar and nut, again O shape circle, pipeline have been enclosed within the outside of lining, inserted joint body, be fastened on the joint body with nut then.Because interlayer is by airtight contacting of O shape circle in the injection moulding in lining and the joint body, and O shape circle has elasticity preferably, it can be correspondingly along with flexible when lining and pipeline change because of expanding with heat and contract with cold, thereby can between joint body and lining leak of liquid not take place.O shape circle is arranged on along the surperficial periphery of joint body injection moulding internal layer, can makes pipeline more firm, also just can not leak between joint body and lining because of pipeline is rocked by the influence of external force with being connected of joint.Be fixed on the O shape circle of seal ring on the lining cartridge outer surface and lining exterior bottom and connecting tube junction point, can guarantee being tightly connected between pipeline and lining, thereby can not leak by the junction point between the two.In addition, after the both sides of snap ring respectively were provided with a collar, when using nut fastening, collar can clamp snap ring from the both sides of snap ring, make stressed being clamped on equably on the lining in both sides of snap ring, and like this, pipeline is just blocked tightlyer, more is difficult for deviating from joint.Therefore, the use of above-mentioned slotting formula pipe joint can guarantee that pipeline can for a long time normally use.
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.
Fig. 1 is a kind of structural representation of slotting formula pipe joint.
As shown in the figure be that a kind of steel is moulded compound slotting formula union elbow, comprise steel-plastic joint body 1, place injection moulding internal layer 2, snap ring 7, lining 4, nut 9 in the steel-plastic joint body 1, along offering groove on the surperficial periphery of joint body injection moulding internal layer 2, be provided with an O-ring seals 3 in the groove.The sealing contact surface of 4 of injection moulding internal layer 2 and linings is strengthened, improve the sealing of joint.The cross section ovalize of O-ring seals 3 makes it have bigger elastic range when pressurized.Also offer groove on the cartridge outer surface of lining 4, the groove internal fixation has rubber seal 8, is provided with O shape circle 5 at the junction point of lining 4 exterior bottom and plastic-aluminum combined pipeline 10.On the cartridge outer surface of rubber seal 8 outsides, lining 4, also have two grooves 11, make the clamping of 4 of plastic-aluminum combined pipeline 10 and linings more firm.Be provided with two taper collars 6 in the both sides of snap ring 7, from bilaterally-chucked snap ring 7.
Said structure also can be used for other slotting formula pipe joint, and as free flow coupling, T joint is first-class.
Claims (5)
1, inserts the formula pipe joint, comprise joint body, place the interior injection moulding internal layer of joint body, snap ring, collar, lining, nut etc., it is characterized in that,, between the surface of contact of itself and described lining, be provided with an O-ring seals along on the surperficial periphery of described joint body injection moulding internal layer.
2, slotting formula pipe joint as claimed in claim 1 is characterized in that, the cross section ovalize of described O-ring seals.
3, slotting formula pipe joint as claimed in claim 1 is characterized in that, is fixed with seal ring on the cartridge outer surface of described lining, is provided with an O-ring seals in the bottom in the described lining outside and the junction point of connecting tube.
4, as claim 1,2 or 3 described slotting formula pipe joints, it is characterized in that, be provided with two collars in the both sides of described snap ring.
5, slotting formula pipe joint as claimed in claim 4 is characterized in that, has two grooves on the cartridge outer surface of the described seal ring outside, described lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218123 CN2428673Y (en) | 2000-06-20 | 2000-06-20 | Connection type pipe adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218123 CN2428673Y (en) | 2000-06-20 | 2000-06-20 | Connection type pipe adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2428673Y true CN2428673Y (en) | 2001-05-02 |
Family
ID=33583572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218123 Expired - Fee Related CN2428673Y (en) | 2000-06-20 | 2000-06-20 | Connection type pipe adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2428673Y (en) |
-
2000
- 2000-06-20 CN CN 00218123 patent/CN2428673Y/en not_active Expired - Fee Related
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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 |