CN2547992Y - Non-return anti-dismountting joint - Google Patents
Non-return anti-dismountting joint Download PDFInfo
- Publication number
- CN2547992Y CN2547992Y CN 02274088 CN02274088U CN2547992Y CN 2547992 Y CN2547992 Y CN 2547992Y CN 02274088 CN02274088 CN 02274088 CN 02274088 U CN02274088 U CN 02274088U CN 2547992 Y CN2547992 Y CN 2547992Y
- Authority
- CN
- China
- Prior art keywords
- return
- dismounting
- water
- pipeline
- dismounting nut
- 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 non-return anti-dismounting joint to be used for connecting a tap water meter with a pipeline and belong to a pipeline connecting accessory. The non-return anti-dismounting joint comprises an anti-dismounting nut outer shell, an anti-dismounting nut inner shell, non-return blocks and a non-return nipple and is characterized in that the anti-dismounting nut outer shell is screwed with the anti-dismounting nut inner shell inside; non-disassembling racks are arranged between the anti-dismounting nut outer shell and the anti-dismounting nut inner shell; the non-return nipple is connected with the anti-dismounting nut outer shell and the anti-dismounting nut inner shell and is provided with the non-return blocks at the ends. The utility model realizes the connection and anti-dismounting between the tap water meter and the pipeline and is a disposable pipeline connecting accessory. When water flows in a normal direction, the water pressure opens the non-return block; when water flows in a reverse direction, the water pressure closes the non-return block and stops water flowing, functioning as a check valve and solving the self-rotation of the tap water meter under water pressure fluctuation. When the pressure of downstream water is higher than the pressure of the pipeline, the utility model is capable of avoiding water quality pollution caused by recharge.
Description
Technical field the utility model belongs to the pipeline connection fittings, relates to a kind of connection fittings that are used for tap water water meter, pipeline---non-return anti-dismounting joint.
Background technique is present, in the domestic connection and installation to small diameter metal pipe, tradition adopts thread connecting mode, and adopting is with the tapping of the advanced row of metal tube head when being threaded, in the connection mouth of the pipeline connection fittings that adapt of again metal tube after the tapping being packed into.Adopting the socket joint ways of connecting in addition, is that the end with pipe inserts in the bellmouth of another pipe or pipeline connection fittings.All there is the problem that can arbitrarily dismantle in these two kinds of Placements.
Summary of the invention the utility model is can arbitrarily dismantle problem for solving traditional pipe joint, prevent that the upside-down mounting of tap water water meter from stealing water, purpose be for the tap water water meter be connected with pipeline provide a kind of can only disposable pipeline connection fittings---non-return anti-dismounting joint.
The utility model non-return anti-dismounting joint content Description:
The utility model non-return anti-dismounting joint is taken over and is formed by cover, anti-removing gear, non-return retaining, non-return in anti-assembling nut overcoat, the anti-assembling nut, it is characterized in that: overlap in the built-in anti-assembling nut of anti-assembling nut overcoat, be threaded; Have between the cover in anti-assembling nut overcoat and the anti-assembling nut and only unload tooth; The anti-assembling nut overcoat is taken over non-return with the interior cover of anti-assembling nut and is connected, and the non-return retaining is set in the end that non-return is taken over.
The utility model non-return anti-dismounting joint has realized that water meter is connected anti-unloading with pipeline, is can only disposable pipeline connection fittings.The pressure of water stops non-return to open when the current forward flow, and the pressure of water closes the non-return retaining water not to be flowed, play the effect of one-way valve, solved the rotation that the tap water water meter is caused under water pressure fluctuations when flow reversal is flowed.When being higher than the pressure of pipeline, water meter downstream hydraulic pressure can prevent to recharge the water pollution that is caused.
Return formula anti-dismounting joint structural representation till description of drawings Fig. 1
Among Fig. 1: 1 be the anti-assembling nut overcoat, 2 for cover in the anti-assembling nut, 3 for anti-removing gear, 4 for non-return keeps off, tie back stem till 5.
Embodiment the utility model non-return anti-dismounting joint is to realize like this, see Fig. 1, by overlap 2 in anti-assembling nut overcoat 1, the anti-assembling nut, anti-removing gear 3, non-return retaining 4, non-return take over 5 and form, it is characterized in that: in anti-assembling nut overcoat 1 built-in anti-assembling nut, overlap 2, be threaded; Have between the cover 2 in anti-assembling nut overcoat 1 and the anti-assembling nut and only unload tooth 3; Anti-assembling nut overcoat 1 is taken over 5 with the interior cover 2 of anti-assembling nut with non-return and is connected, and in the end of non-return adapter 5 non-return retaining 4 is set.Be fastenedly connected pipe when the 1 normal rotation of anti-assembling nut overcoat, anti-removing gear 3 forms relative stationary fit with 2 lockings of cover in anti-assembling nut overcoat 1 and the anti-assembling nut at this moment; When opposite spin anti-assembling nut overcoat 1, in the anti-removing gear 3 withdrawal grooves, this moment, anti-assembling nut overcoat 1 formed transition fit with the interior cover 2 of anti-assembling nut, 1 spinning of anti-assembling nut overcoat, cover 2 is motionless in the anti-assembling nut, thereby has realized preventing that the upside-down mounting of tap water water meter from stealing the anti-disassembling function of water, tap water water meter.
Claims (1)
1, a kind of non-return anti-dismounting joint is taken over and is formed by cover, anti-removing gear, non-return retaining, non-return in anti-assembling nut overcoat, the anti-assembling nut, it is characterized in that: overlap in the built-in anti-assembling nut of anti-assembling nut overcoat, be threaded; Have between the cover in anti-assembling nut overcoat and the anti-assembling nut and only unload tooth; The anti-assembling nut overcoat is taken over non-return with the interior cover of anti-assembling nut and is connected, and the non-return retaining is set in the end that non-return is taken over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274088 CN2547992Y (en) | 2002-07-09 | 2002-07-09 | Non-return anti-dismountting joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274088 CN2547992Y (en) | 2002-07-09 | 2002-07-09 | Non-return anti-dismountting joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547992Y true CN2547992Y (en) | 2003-04-30 |
Family
ID=33738415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274088 Expired - Fee Related CN2547992Y (en) | 2002-07-09 | 2002-07-09 | Non-return anti-dismountting joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547992Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623843A (en) * | 2015-01-23 | 2015-05-20 | 成都佳美嘉科技有限公司 | Interface of fire hose |
| CN105020235A (en) * | 2015-07-10 | 2015-11-04 | 上海三菱电机·上菱空调机电器有限公司 | Disassembly-preventing connection pipe nut, connection pipe nut assembly, air conditioner and method for preventing disassembly for connection pipe nut |
-
2002
- 2002-07-09 CN CN 02274088 patent/CN2547992Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623843A (en) * | 2015-01-23 | 2015-05-20 | 成都佳美嘉科技有限公司 | Interface of fire hose |
| CN105020235A (en) * | 2015-07-10 | 2015-11-04 | 上海三菱电机·上菱空调机电器有限公司 | Disassembly-preventing connection pipe nut, connection pipe nut assembly, air conditioner and method for preventing disassembly for connection pipe nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2547992Y (en) | Non-return anti-dismountting joint | |
| CN201223751Y (en) | Reducer pipe coupling type water filter | |
| CN202521092U (en) | Connector structure of spin flexible pipe | |
| CN106641529A (en) | Length-adjustable rubber hose connecting unit | |
| CN201687791U (en) | Rectifier valve sealed by spherical surface | |
| CN201373146Y (en) | Multifunctional anti-drip non-return combined valve | |
| CN201367621Y (en) | Water-saving device | |
| CN2603887Y (en) | Water economizer | |
| CN208816056U (en) | A kind of oil field screw-type tubing nipple of the outer silk of double end | |
| CN201866349U (en) | Multifunctional loose-joint type drip-leakage-preventing integrated check valve | |
| CN206496128U (en) | A kind of length adjustable rubber hose connection unit | |
| CN201110432Y (en) | Encapsulated pipe fitting joint | |
| CN201386837Y (en) | One-way ball valve | |
| CN2872315Y (en) | Plastic water-gauge casing structure | |
| CN208281578U (en) | One kind screwing control check valve | |
| CN209762506U (en) | Building drainage pipe connects | |
| CN205244505U (en) | Check valve | |
| CN201318518Y (en) | Direct connector for pipe fittings | |
| CN214404783U (en) | Improved faucet | |
| CN109339715A (en) | A kind of oil field screw-type tubing nipple of the outer silk of double end | |
| CN2663774Y (en) | A connector adaptive for multiunit tube and other flexible pipes | |
| CN201173348Y (en) | Connecting casing with circular tube having outside screw | |
| CN209839389U (en) | Spiral corrugated pipe capable of being installed conveniently | |
| CN216430631U (en) | Improved water tap | |
| CN216158293U (en) | High-pressure stop valve of stability |
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 |