CN2811721Y - Reflux-preventing quick joint - Google Patents
Reflux-preventing quick joint Download PDFInfo
- Publication number
- CN2811721Y CN2811721Y CN 200520014527 CN200520014527U CN2811721Y CN 2811721 Y CN2811721 Y CN 2811721Y CN 200520014527 CN200520014527 CN 200520014527 CN 200520014527 U CN200520014527 U CN 200520014527U CN 2811721 Y CN2811721 Y CN 2811721Y
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- CN
- China
- Prior art keywords
- pipe joint
- core
- rapid pipe
- joint
- shaped ring
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- 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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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a reflux-preventing quick joint for a household jetting machine, which is characterized in that a core-body o-shaped ring A and a core-body o-shaped ring B are respectively arranged on both ends of s core body of an inner cavity of a joint body, and the core-body o-shaped ring A and the core-body o-shaped ring B are respectively configured with a port of the inner cavity of the joint body; a back nut which is arranged on the end of the joint body fixes a water inlet pipe on the end of the joint body; the base of the joint body is arranged in a connecting sleeve, and a spring is arranged in the cavity of the connecting sleeve and the joint body; a plurality of buckles are arranged between the spring and the quick joint and are symmetrically distributed; the end of the quick joint mouth extends into the inner part of the joint body, and an inlet o-shaped ring is arranged on the end of the quick joint mouth; a horizontal pad is arranged at the bottom of an interface of the quick joint mouth 1. The core body is added with an o-shaped ring; when reversed pressure is bigger than water-inlet pressure, the reflux pressure pushes the core body to move to the left, and thus the o-shaped ring seals the reflux to achieve the purpose of preventing water source from being polluted.
Description
Technical field
The utility model relates to a kind of anti-back flow rapid pipe joint of family expenses jetting machine.
Background technique
Jetting machine is because its superior function, use more and more widely, the family expenses jetting machine is more and more universal especially now, wherein rapid pipe joint is on the jetting machine one very important components, and rapid pipe joint is generally the rapid pipe joint of unidirectional anti-water outlet, promptly when the joint mouth is extracted, core body is under the effect of hydraulic pressure, outwards move automatically, O type circle sealing water part when moving on to certain position, generation prevents in the phenomenon of extracting back water waste and disorderly spraying.But because the water intake mechanism part-structure of existing family expenses jetting machine is very unreasonable, intake pipe directly is connected on the drinking public water supply pipe, when hydraulic pressure is greater than the water inlet inner pipe water pressure in the joint mouth, tends to produce and refluxes, and makes the drinking water source be polluted.From on July 1st, 2005, among the European norm EN60335 family expenses jetting machine hydraulic pressure flow backwards and done mandatory provision, forbid that sewage blows back into the drinking water source, polluted drinking water.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of anti-back flow rapid pipe joint of family expenses jetting machine.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of anti-back flow rapid pipe joint, comprise intake pipe, rapid pipe joint mouth and the cover that connects that connects intake pipe and rapid pipe joint mouth, the described base portion that is provided with fittings body in the cover that connects, the back nut that the fittings body end is provided with is fixed on intake pipe the end of fittings body, inner chamber at fittings body is provided with core body, head at the core body two ends is respectively equipped with core body O type circle A and core body O type circle B, core body O type circle A and core body O type circle B respectively with the lumen port phase configuration of fittings body.
Described connecing in cover and the chamber of fittings body base portion is provided with spring, is provided with several buckles between described spring and the rapid pipe joint mouth, and symmetrical distribution.
The end of described rapid pipe joint mouth extend into the inside of fittings body, and is provided with into water O type circle in the end of rapid pipe joint mouth; The interface bottom of rapid pipe joint mouth is provided with into water plain cushion.
Core body increases an O type circle, and when the rapid pipe joint mouth was not installed, the pressure of following current water inlet was big and do not have refluence pressure, so core body moves right, intakes thereby seal.After the rapid pipe joint mouth is installed, core body is backed down left, so water inlet can flow to the rapid pipe joint mouth and the pump housing; When pressure and backpressure were oppositely arranged greater than intake pressure, the pressure that then flows backwards promoted core body and is moved to the left, thereby O type circle is sealed refluence, reaches the purpose at anti-pollution water source.The utility model only needs to increase by 0.1～0.2 yuan of cost on former basis, and very reliable through checking.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: referring to Fig. 1, the utility model is that the head at core body 11 two ends of fittings body 7 inner chambers is respectively equipped with core body O type circle A 9 and core body O type circle B 12, core body O type circle A 9 and core body O type circle B 12 respectively with the lumen port phase configuration of fittings body 7; The back nut 10 that the end of fittings body 7 is provided with is fixed on intake pipe 8 end of fittings body 7;
The base portion of fittings body 7 is arranged on and connects in the cover 3, connects in cover 3 and the chamber of fittings body 7 base portions and is provided with spring 6, is provided with several buckles 4 between spring 6 and the rapid pipe joint mouth 1, and symmetrical distribution; The end of rapid pipe joint mouth 1 extend into the inside of fittings body 7, and is provided with into water O type circle 5 in the end of rapid pipe joint mouth 1; The interface bottom of rapid pipe joint mouth 1 is provided with into water plain cushion 2.
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model all should be thought to belong to protection domain of the present utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. anti-back flow rapid pipe joint, comprise intake pipe, rapid pipe joint mouth and the cover that connects that connects intake pipe and rapid pipe joint mouth, it is characterized in that the described base portion that is provided with fittings body (7) in the cover (3) that connects, the back nut (10) that fittings body (7) end is provided with is fixed on intake pipe (8) end of fittings body (7), inner chamber at fittings body (7) is provided with core body (11), head at core body (11) two ends is respectively equipped with core body O type circle A (9) and core body O type circle B (12), core body O type circle A (9) and core body O type circle B (12) respectively with the lumen port phase configuration of fittings body (7).
2. anti-back flow rapid pipe joint according to claim 1 is characterized in that being provided with spring (6) in the described chamber that connects cover (3) and fittings body (7) base portion, is provided with several buckles between described spring (6) and the rapid pipe joint mouth (1), and symmetrical distribution.
3. anti-back flow rapid pipe joint according to claim 1 and 2 is characterized in that the end of described rapid pipe joint mouth (1) extend into the inside of fittings body (7), and is provided with into water O type circle (5) in the end of rapid pipe joint mouth (1); The interface bottom of rapid pipe joint mouth (1) is provided with into water plain cushion (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014527 CN2811721Y (en) | 2005-08-31 | 2005-08-31 | Reflux-preventing quick joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014527 CN2811721Y (en) | 2005-08-31 | 2005-08-31 | Reflux-preventing quick joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811721Y true CN2811721Y (en) | 2006-08-30 |
Family
ID=36938111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520014527 Expired - Fee Related CN2811721Y (en) | 2005-08-31 | 2005-08-31 | Reflux-preventing quick joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811721Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629665B (en) * | 2009-06-15 | 2011-05-18 | 呼和浩特铁路局科研所 | Fast cut-off joint for water feeding of passenger train |
-
2005
- 2005-08-31 CN CN 200520014527 patent/CN2811721Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629665B (en) * | 2009-06-15 | 2011-05-18 | 呼和浩特铁路局科研所 | Fast cut-off joint for water feeding of passenger train |
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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 |