CN2491487Y - Expansion compensator - Google Patents
Expansion compensator Download PDFInfo
- Publication number
- CN2491487Y CN2491487Y CN 01253386 CN01253386U CN2491487Y CN 2491487 Y CN2491487 Y CN 2491487Y CN 01253386 CN01253386 CN 01253386 CN 01253386 U CN01253386 U CN 01253386U CN 2491487 Y CN2491487 Y CN 2491487Y
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- CN
- China
- Prior art keywords
- endosome
- utility
- model
- main body
- inserts
- 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 expansion compensation device applied to a non-metallic tube system. The device comprises a main body, inserts, an inner body, a movable cover, a movable connector and a sealing ring. In installment time of the PPR tube, even within the limited space of the installment position, the utility model is also capable of solving the problem that a plastic tube can not be installed resulting from the deformation caused by thermal expansion and cold shrinking, and thereby the application areas of the PPR tube material can be greatly expanded. The utility model is reasonable and simple in structure and convenient in connection. After being improved, the utility model also can be applied to the non-metallic tube systems such as PE, PE-X, PB, ABS and the like.
Description
Technical field
The utility model relates to the expansion appliance that nonmetal water supply line connects, and especially PPR tubing connects expansion appliance.
Background technology
Tap water supply pipeline tradition is used galvanized pipe, because galvanized pipe easily gets rusty and polluted water, progressively replaced by PPR pipe, but PPR tubing compares with metal pipe material, linear expansion coeffcient is bigger, be 0.16～0.18mm/mk, be about 15 times of steel, 10 times of copper, the ubiquity phenomenon of comparatively significantly expanding with heat and contract with cold in actual installation, especially be used for hot water pipeline, the tubing distortion is fairly obvious.And show that according to present data the compensation method that is used to solve PPR tubing expansion issues is both at home and abroad generally adopted and installed " L " type free arm additional or " U " type compensation circuit compensates on the PPR pipeline; Metal conduit saddle forced compensation perhaps is installed, but, because of limitting the installation site, or there are not enough installing spaces in some application scenario, cause compensation circuit can't be installed, therefore in engineering is used, be badly in need of being used to solve plastic conduit causes distortion because of expanding with heat and contract with cold expansion appliance." water meter stretch coupling " of the patent No. 95214081.0 is to be applied to make in the water meter maintenance process in the metallic conduit short tube and the position of water meter that a relative variable quantity is arranged, thereby brings changeing conveniently each other, finishes being connected of water meter and feed pipe.But this structure can't solve the connection problem that PPR tubing is brought because of the distortion of expanding with heat and contract with cold.
Summary of the invention
Technical problem to be solved in the utility model is exactly in limited space, installation site, still can overcome in the plastic pipe installing engineering because of the distortion of expanding with heat and contract with cold cause can't installation question, and provide a kind of compensation circuit that addresses the aforementioned drawbacks.
The utility model is according to above-mentioned proposition technical problem to be solved, the technical scheme of its enforcement is: include main body, be provided with the endosome that freely stretches in the main body, endosome connects movable joint by the loose joint lid, and on the bonding surface of endosome and movable joint, be provided with " O " RunddichtringO, it is characterized in that described main body and endosome between be provided with inserts, inserts and endosome junction are for being tightly connected.
Compared with prior art, expansion appliance of the present utility model is in limited space, installation site, still can solve plastic pipe because of the distortion of expanding with heat and contract with cold cause can't installation question, expanded the application of PPR tubing greatly, it is rational in infrastructure, and is simple, easy to connect, through suitably improving, also can be applicable to other nonmetal pipeline system, as pressure-bearing water supply piping systems such as PE pipe, PE-X pipe, PB pipe, ABS pipes.
Description of drawings
Fig. 1 has provided the utility model structural representation.
The specific embodiment
By above-mentioned accompanying drawing embodiment the utility model is remake following detailed description.
As shown in Figure 1, the expansion appliance two ends are main body (1) and movable joints (7) of PPR control, be provided with retractile metal copper endosome (4) between the two, spinning is that the movable joint that metal loose joint made of copper lid (5) will have a step tightly is connected endosome one side on endosome one end equally, leakage for the anti-tap water process of circulation is provided with " O " RunddichtringO (6) that is embedded in the endosome annular groove in both junctions.
Be provided with the metal inserts made of copper (2) that is inlaid in the main body between flexible end of endosome and the main body, pre-buried during injection moulding, making endosome be out of shape the relative telescopic process that causes because of the PPR pipe expands with heat and contract with cold is the relative friction of metal to metal, has identical friction factor, does not have problem easy to wear.Equally, leak for avoiding the water on the rubbing surface, be provided with two pass " O " RunddichtringO (3) sealing between inserts and the endosome, the sealing circle is embedded in prefabricated 2 annular grooves of inserts.
Claims (2)
1. expansion appliance that is applied to the nonmetal pipeline system, include main body (1), be provided with the endosome (4) that freely stretches in the main body, endosome connects movable joint (7) by loose joint lid (5), and on the bonding surface of endosome and movable joint, be provided with " O " RunddichtringO (6), it is characterized in that described main body and endosome between be provided with inserts (2), inserts and endosome junction are for being tightly connected.
2. expansion appliance according to claim 1 is characterized in that being tightly connected of described inserts (2) and endosome (4) junction is tightly connected for two pass " O " RunddichtringO (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253386 CN2491487Y (en) | 2001-08-29 | 2001-08-29 | Expansion compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253386 CN2491487Y (en) | 2001-08-29 | 2001-08-29 | Expansion compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491487Y true CN2491487Y (en) | 2002-05-15 |
Family
ID=33662890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01253386 Expired - Fee Related CN2491487Y (en) | 2001-08-29 | 2001-08-29 | Expansion compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491487Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301378C (en) * | 2004-06-22 | 2007-02-21 | 曲阜天博汽车零部件制造有限公司 | Method for sealing metal through inserts and plastics on injection moulding members |
| CN109084112A (en) * | 2018-09-06 | 2018-12-25 | 重庆建工第三建设有限责任公司 | A kind of pipeline extension compensation device and its installation method |
| CN111322482A (en) * | 2018-12-13 | 2020-06-23 | 乔治费歇尔管路***公开股份有限公司 | Length compensator |
-
2001
- 2001-08-29 CN CN 01253386 patent/CN2491487Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301378C (en) * | 2004-06-22 | 2007-02-21 | 曲阜天博汽车零部件制造有限公司 | Method for sealing metal through inserts and plastics on injection moulding members |
| CN109084112A (en) * | 2018-09-06 | 2018-12-25 | 重庆建工第三建设有限责任公司 | A kind of pipeline extension compensation device and its installation method |
| CN111322482A (en) * | 2018-12-13 | 2020-06-23 | 乔治费歇尔管路***公开股份有限公司 | Length compensator |
| CN111322482B (en) * | 2018-12-13 | 2023-03-10 | 乔治费歇尔管路***公开股份有限公司 | Length compensator |
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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 |