CN2358322Y - Pipe connection of aluminium-plastic composite pipe - Google Patents
Pipe connection of aluminium-plastic composite pipe Download PDFInfo
- Publication number
- CN2358322Y CN2358322Y CN 98213076 CN98213076U CN2358322Y CN 2358322 Y CN2358322 Y CN 2358322Y CN 98213076 CN98213076 CN 98213076 CN 98213076 U CN98213076 U CN 98213076U CN 2358322 Y CN2358322 Y CN 2358322Y
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- CN
- China
- Prior art keywords
- pipe
- pipe joint
- joint
- aluminum
- belled part
- 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 relates to a pipe joint, particularly a pipe joint used for aluminum-plastic compound pipes. A sealing groove is arranged on the surface of a pipe sheathing part of the pipe joint used for aluminum-plastic compound pipes, and a wedge-shaped sealing ring is arranged on the sealing groove. The pipe joint used for aluminum-plastic compound pipes of the utility model has marked advantages. The pipe joint used for aluminum-plastic compound pipes is suitable for wider work environment for connecting pipes. The pipe joint used for aluminum-plastic compound pipes has excellent anti-leakage performance and anti-pull drop performance. When the pipe joint used for aluminum-plastic compound pipes is practically used, the pipe joint used for aluminum-plastic compound pipes has convenient and quick operation, high installing success rate, and safety. When the pipe joint used for aluminum-plastic compound pipes which is used is disassembled, the pipe joint used for aluminum-plastic compound pipes can be repeatedly used.
Description
The utility model relates to a kind of pipe joint, especially a kind of pipe joint that is used for aluminium-plastic composite pipe.
Aluminium-plastic composite pipe is the pipeline material that rises in recent years.In a lot of applications, it is replacing traditional galvanized pipe, plastic tube and rubber pipe.Because there is certain difficulty in its smooth surface and have deformation plasticity aspect connection.For this reason, people have designed the special joint of many aluminium-plastic composite pipes.Model utility 93206405.1 discloses a kind of aluminium-plastic composite pipe special joint, seeing also Fig. 1. it is by joint body 10, nut 11, hold-down ring 12 is formed, joint body 10 comprises nut portions 101, screw section 102 and pipe belled part 103, its major character is: pipe belled part 103 is provided with the annular groove 104 in three circle rectangular cross sections, and wherein 2 annular grooves are provided with o shape seal ring 13.
There are many defectives in actual use in above-mentioned aluminium-plastic composite pipe special joint: the external diameter that connects part as the pipe box of joint will have preferably with the internal diameter of pipe and cooperates, the necessary unanimity of size, and the tolerance range that is adapted to is very little, and working environment is narrower.And in joint or pipe production process, certainly exist certain deviation, if the pipe box of joint connects part and cooperates with the internal diameter of the pipe high limit of tolerance with the external diameter of the low limit of tolerance, being combined with may be loose, can't produce good sealing effect; If connecing part, the pipe box of joint cooperates with the internal diameter of the pipe low limit of tolerance with the external diameter of the high limit of tolerance, be difficult to probably be inserted in pipe and damage seal ring,, then might scratch tube wall as being inserted in by force, influence the normal use of pipe, leak resistance and withstand voltage properties descend.In addition, the o shape seal ring of this joint installing is easy to distortion or damage through overcompression, thereby used joint is pulled down the not reproducible use in back.
Main purpose of the present utility model is to overcome the shortcoming of prior art, provides a kind of adaptation working environment broader, has the pipe joint of excellent release-resistance energy.
Another purpose of the present utility model is that the pipe joint that is provided is reusable, and is simple and efficient to handle in use, and attaching success rate height is safe and reliable.
For realizing above purpose, the utility model provides a kind of pipe joint, is made up of joint body, nut, hold-down ring;
Joint body comprises nut portions, screw section and pipe belled part, and pipe rear end, belled part is provided with axial notch.
Nut one end is provided with flange, and is provided with the awl inclined-plane in flange inner.
Two ends, the hold-down ring outside are provided with the awl inclined-plane, and the inboard is provided with raised line, and ring is provided with opening.
It is characterized in that: the surface, pipe belled part of aforementioned tubes joint is provided with sealed groove, and is equiped with wedge shape sealing ring on groove.
The aforementioned tubes joint is characterized in that the front end in the axial parting face of the seal ring outside is provided with the inclined-plane of convergent forward.
The aforementioned tubes joint is characterized in that: the rear end in the axial parting face of the seal ring outside is provided with the cambered surface or the inclined-plane of convergent backward, also can be made as vertical surface.
The aforementioned tubes joint is characterized in that: the inner face of wedge shape sealing ring and the outer surface cooperation mutually of pipe belled part sealed groove.
The aforementioned tubes joint is characterized in that: pipe belled part front end is provided with sawtooth tooth shape annular groove or shape of threads annular groove, and the rear side of annular groove is provided with the cylndrical surface.
The aforementioned tubes joint is characterized in that: the axial notch of pipe rear end, belled part can be equiped with sealing gasket.
Below in conjunction with accompanying drawing and example the utility model is further described.
Fig. 1 a, Fig. 1 b are the assembling view of pipe joint in the past and used o shape seal ring parting figure thereof.
Fig. 2 a, 2b, 2c are the utility model embodiment 1 pipe joint exploded view and assembling view and seal ring sectional view thereof.
Fig. 3 a, 3b, 3c are the utility model embodiment 2 pipe joint exploded view and assembling view and seal ring sectional view thereof.
Fig. 4 a, 4b, 4c are the utility model embodiment 3 pipe joint exploded view and assembling view and seal ring sectional view thereof.
In diagrammatic sketch, the right claims the front end of pipe joint, and the left side is called the rear end.
Embodiment 1:
Consult Fig. 2 a, b, c pipe joint of the present utility model by joint body (20), nut (21), hold-down ring (22) and wedge shape sealing ring (23) formation;
Joint body comprises nut portions (201), screw section (202) and pipe belled part (203), and pipe belled part (203) front end is provided with flexuose or shape of threads annular groove (204); The rear side of annular groove (204) is provided with cylndrical surface (206), and its external diameter equals or be comparable to the internal diameter design low limit of tolerance of pipe; Pipe belled part (203) rear end surface of pipe joint is provided with sealed groove (205), and sealed groove can be rectangle, also can be trapezoidally, and is equiped with wedge shape sealing ring (23) on sealed groove; The pipe rear end, belled part (203) be provided with axial notch (207), and at axial notch (207) by being equiped with sealing gasket (24).
The inner face of wedge shape sealing ring is the cylndrical surface, and with the pipe belled part (203) back-end sealing groove (205) outer surface match, wedge shape sealing ring (23) the axially front end in the parting face outside is provided with the inclined-plane of convergent (232) forward, wedge shape sealing ring (23) minimum outer diameter is less than the external diameter of cylndrical surface (206), and the maximum outside diameter of wedge shape sealing ring (23) equals or be comparable to the internal diameter design high limit of tolerance of pipe; Axially the rear end in the parting face outside is provided with the cambered surface of convergent (233) backward.
Nut (21) rear end is provided with flange (211), and is provided with awl inclined-plane (212) in flange inner;
Two ends, hold-down ring (22) outside are provided with awl inclined-plane (221,222), and the inboard is provided with raised line (223).
When using the pipe joint connecting tube period of the day from 11 p.m. to 1 a.m of the present utility model, earlier nut (21) and the hold-down ring (22) that central authorities run through passed in the end of pipe p, then pipe P is socketed in the pipe belled part (203) of pipe joint, make its pipe be inserted into the groove (207) at pipe rear portion, belled part (203), and contact with seal rubber pad (24), in this state, fastening nut (21) just can make pipe P produce firm being connected with pipe joint.
Below, want the effect of portion to be illustrated to pipe joint of the present utility model.
Pipe joint of the present utility model is designed to wedge shape sealing ring (23) with obturator, wedge shape sealing ring (23) the axially front end in the parting face outside is provided with the inclined-plane of convergent (232) forward, the minimum outer diameter of wedge shape sealing ring (23) is less than the external diameter of cylndrical surface (206), be inserted in seal ring when having socket pipe easily, and can not damage the effect of seal ring, the maximum outside diameter of wedge shape sealing ring equals or is comparable to the internal diameter design high limit of tolerance of pipe P, can guarantee that the pipe P in any internal diameter design tolerance scope all can be easy to be inserted in, and can maintain good sealing contact surface again.Because wedge shape sealing ring (23) has enough inclined-planes (232), even still can not guarantee its excellent sealing performance through repeatedly compression is also yielding, thereby pipe joint of the present utility model can be reused.
Wedge shape sealing ring (23) the axially rear end in the parting face outside is provided with the cambered surface of convergent (233) backward, can prevent that pipe P is inserted in the pipe belled part and wedge shape sealing ring (23) is rolled when (203) or be shifted, also can guarantee simultaneously wedge shape sealing ring (23) whole stressed equilibrium when being compressed, improve sealing effect.
The rear side of flexuose annular groove (204) or shape of threads annular groove is provided with cylndrical surface (206), its external diameter equals or is comparable to the design low limit of tolerance of ips, can guarantee that pipe is inserted in pipe belled part (203) easily, can prevent to scratch pipe P inwall simultaneously, guarantee its sealing.
Pipe belled part (203) is provided with a plurality of flexuose annular grooves (204) or shape of threads annular groove, when nut (21) when tightening, hold-down ring (22) is compressed, a plurality of raised lines (223) of hold-down ring (22) evenly are pressed into pipe P, pipe P is also evenly embedded in the middle of a plurality of flexuose annular grooves (204) or the shape of threads annular groove simultaneously, such structure and prior art have only a draw-in groove to compare to have the better effect that is connected, after accomplishing to compress pipe, neither damage pipe, can improve the anti-pulling of the pipe joint connecting tube period of the day from 11 p.m. to 1 a.m again greatly, counter-bending seepage, resisting periodical thermal change and anti-cyclic stress performance and do not leak.
In addition, under some application, the axial notch of pipe rear end, belled part is equiped with seal rubber pad (24), can play anti-oxidation protective action and seal action to the aluminum alloy in aluminium plastic composited tube mesosphere.
Embodiment 2:
See also Fig. 3 a, 3b, 3c.Present embodiment pipe joint remaining part is all identical with embodiment 1, and the back end design that has the axial parting face of wedge shape sealing ring (23) outside only becomes the inclined-plane of convergent backward.
Embodiment 3:
See also Fig. 4 a, 4b, 4c.Present embodiment pipe joint remaining part is all identical with embodiment 1, and the back end design that has the axial parting face of wedge shape sealing ring (23) outside only becomes vertical surface.
Below only lift three examples of the present utility model, but the utility model is not limited to previous examples, can making various forms of variations in the scope of technical characteristics main points of the present utility model, this is self-evident.
Therefore, pipe joint of the present utility model has significant advantage, adapts to the plumber that connects It is broader to make environment, has excellent anti-leak performance and tension to take off performance, when practical application, Easy and simple to handle, quick, attaching success rate height, safe and reliable, and used pipe joint is pulled down The time, also reusable.
Claims (6)
1. a pipe joint is made up of joint body, nut, hold-down ring;
Joint body comprises nut portions, screw section and pipe belled part, and pipe rear end, belled part is provided with axial notch.
Nut one end is provided with flange, and is provided with the awl inclined-plane in flange inner.
Two ends, the hold-down ring outside are provided with the awl inclined-plane, and the inboard is provided with raised line, and ring is provided with opening.
It is characterized in that: the surface, pipe belled part of aforementioned tubes joint is provided with sealed groove, and is equiped with wedge shape sealing ring on groove.
2. pipe joint as claimed in claim 1 is characterized in that the front end in the axial parting face of the seal ring outside is provided with the inclined-plane of convergent forward.
3. pipe joint as claimed in claim 1 is characterized in that the rear end in the axial parting face of the seal ring outside is provided with the cambered surface or the inclined-plane of convergent backward, also can be made as vertical surface.
4. pipe joint as claimed in claim 1 is characterized in that: the inner face of wedge shape sealing ring matches with pipe belled part sealed groove outer surface.
5. pipe joint as claimed in claim 1 is characterized in that: pipe belled part front end is provided with sawtooth tooth shape annular groove or shape of threads annular groove, and the rear side of annular groove is provided with the cylndrical surface.
6. pipe joint as claimed in claim 1 is characterized in that: the axial notch of pipe rear end, belled part can be equiped with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213076 CN2358322Y (en) | 1998-02-28 | 1998-02-28 | Pipe connection of aluminium-plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213076 CN2358322Y (en) | 1998-02-28 | 1998-02-28 | Pipe connection of aluminium-plastic composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2358322Y true CN2358322Y (en) | 2000-01-12 |
Family
ID=33967153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98213076 Expired - Fee Related CN2358322Y (en) | 1998-02-28 | 1998-02-28 | Pipe connection of aluminium-plastic composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2358322Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416151C (en) * | 2004-09-29 | 2008-09-03 | 东尾机械株式会社 | Pipe joint |
| CN102322553A (en) * | 2011-09-21 | 2012-01-18 | 周佰兴 | Be used for the adjustable prefastening sealing saddle joint that pipeline or tubing flexibly connect |
| CN107387922A (en) * | 2017-08-17 | 2017-11-24 | 太仓永固精密制件有限公司 | A kind of seal for pipe joints connector |
| CN109668358A (en) * | 2018-12-26 | 2019-04-23 | 广州骇能自动化设备科技有限公司 | A kind of cooling system and its cooling means |
| CN113685635A (en) * | 2021-09-06 | 2021-11-23 | 台州半城暖通科技有限公司 | Pipe fitting is adjusted and connected to intubate |
-
1998
- 1998-02-28 CN CN 98213076 patent/CN2358322Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416151C (en) * | 2004-09-29 | 2008-09-03 | 东尾机械株式会社 | Pipe joint |
| CN102322553A (en) * | 2011-09-21 | 2012-01-18 | 周佰兴 | Be used for the adjustable prefastening sealing saddle joint that pipeline or tubing flexibly connect |
| CN107387922A (en) * | 2017-08-17 | 2017-11-24 | 太仓永固精密制件有限公司 | A kind of seal for pipe joints connector |
| CN109668358A (en) * | 2018-12-26 | 2019-04-23 | 广州骇能自动化设备科技有限公司 | A kind of cooling system and its cooling means |
| CN113685635A (en) * | 2021-09-06 | 2021-11-23 | 台州半城暖通科技有限公司 | Pipe fitting is adjusted and connected to intubate |
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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 |