CN2630808Y - No-return irreversible connection device for gas meter and pipeline - Google Patents
No-return irreversible connection device for gas meter and pipeline Download PDFInfo
- Publication number
- CN2630808Y CN2630808Y CN 03255899 CN03255899U CN2630808Y CN 2630808 Y CN2630808 Y CN 2630808Y CN 03255899 CN03255899 CN 03255899 CN 03255899 U CN03255899 U CN 03255899U CN 2630808 Y CN2630808 Y CN 2630808Y
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- Prior art keywords
- nut
- joint
- plane
- gas meter
- reed
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- Expired - Fee Related
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Abstract
The utility model discloses an anti-retreat irreversible connecting device between the gas meter and the pipe, which comprises a joint, a nut matched on the head of the joint and a seal ring. The nut plane of the combined plane between the nut and the joint is provided with an empty slot, the empty slot is provided with an anti-retreat reed, the joint plane of the combined plane between the nut and the joint is provided with a spinous groove which can accommodate the anti-retreat reed and get in or out in a single direction. Comparing with the prior technology, the utility model has obvious advantages of the limitation to the structure, because an anti-retreat reed is arranged between the nut and the combined plane, so the nut can only be one-way and irreversibly rotated inward when installing the gas meter, once irreversible the nut is broken, therefore, the hidden safety danger of the gas meter in use can be effectively prevented.
Description
Technical field
The utility model relates to a kind of assembling pipe joint, relates in particular to the coupling arrangement of a kind of gas meter, flow meter and gas transmission and distribution pipeline, particularly a kind of gas meter, flow meter and irreversible coupling arrangement of pipeline enclosure retaining of being used for.
Background technology
At present, domestic gas meter and being connected of transmission and distribution pipeline are that the turnover gas joint with gas meter, flow meter is connected with joint screw thread by nut, O-ring seal respectively, the weak point that this connected mode exists is: being threaded and can discharging by reverse rotation between nut and the joint, so the user can dismantle easily at finishing or in using, thereby bring some potential safety hazards, for example cause gas leakage artificially.
Summary of the invention
Technical problem to be solved in the utility model is: in the prior art, domestic gas meter is connected with joint screw thread by nut, O-ring seal with transmission and distribution pipeline, being threaded and discharging by reverse rotation between nut and the joint in this connected mode, the user can dismantle link easily at finishing or in using, and brings some potential safety hazards thus.
The utility model for the technical scheme that the problems referred to above adopted that solves in the prior art is: a kind of gas meter, flow meter and irreversible coupling arrangement of pipeline enclosure retaining of being used for is provided, comprise joint, supporting nut and O-ring seal at the joint head, it is characterized in that: be provided with stopping device between described nut and the described joint, described stopping device is made of retaining reed and sour jujube groove, wherein said retaining reed is arranged on a side that combines the plane of described nut and described joint, and described sour jujube groove is arranged on all the other sides that combine the plane of described nut and described joint.Concrete, described nut combines the plane with described joint nut plane is provided with dead slot, is provided with retaining reed in the described dead slot, and described joint combines the plane with described nut joint plane is provided with and can holds the sour jujube groove that the retaining reed single direction enters.
Further, dead slot is provided with two at least on the described nut plane.
Further, the sour jujube groove is provided with four at least on the described joint plane.
The utility model compared with the prior art, its conspicuous advantage: be structural restriction, because nut combines with joint and is provided with retaining reed between the plane, make that when gas meter, flow meter is installed nut can only be a unidirectional screw-in and irreversible, in case reverse then decrease the ring nut, thereby prevented the potential safety hazard of gas meter, flow meter in using effectively.
Description of drawings
Fig. 1 is a preferred embodiment longitudinal profile of a utility model structural representation;
Fig. 2 is a preferred embodiment nut of a utility model lateral cross section structural representation;
Fig. 3 is a preferred embodiment joint of a utility model head lateral cross section structural representation.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3.A kind of gas meter, flow meter and irreversible coupling arrangement of pipeline enclosure retaining of being used for of the present utility model, by joint 1, supporting nut 2, retaining reed 3 at the joint head, and O-ring seal 4 form.Nut 2 combines the plane with joint 1 nut plane is provided with two dead slots 7, is provided with retaining reed 3 in the dead slot 7, and joint 1 combines the plane with nut 2 joint plane is provided with four sour jujube grooves 8 that can hold the turnover of retaining reed 3 single directions.When gas meter, flow meter and piping erection, supporting nut 2 on joint 1 is screwed in combustion gas watchcase 6 enterprising escape pipe joints 5, retaining reed 3 is started working, make nut 2 to screw in by single direction, until screwing, in the sour jujube groove 8 that retaining reed 3 embeds on the joint 1, direction of motion is irreversible; If oppositely screw out, can damage nut 2, thereby prevent gas meter, flow meter potential safety hazard in use effectively.
Claims (4)
1. one kind is used for gas meter, flow meter and the irreversible coupling arrangement of pipeline enclosure retaining, constitute by joint, the supporting nut that is arranged on described joint head, it is characterized in that: be provided with stopping device between described nut (2) and the described joint (1), described stopping device is made of retaining reed (3) and sour jujube groove (8), wherein said retaining reed (3) is arranged on a side that combines the plane of described nut (2) and described joint (1), and described sour jujube groove (8) is arranged on all the other sides that combine the plane of described nut (2) and described joint (1).
2. gas meter, flow meter and the irreversible coupling arrangement of pipeline enclosure retaining of being used for according to claim 1, it is characterized in that: described nut side be provided with dead slot (7) in conjunction with the plane, described retaining reed (3) is arranged in the described dead slot (7), described joint (1) side be provided with the sour jujube groove (8) that cooperates described retaining reed (3) single direction to enter in conjunction with the plane.
3. gas meter, flow meter and the irreversible coupling arrangement of pipeline enclosure retaining of being used for according to claim 2 is characterized in that: described nut side be provided with two at least in conjunction with the dead slot on the plane (7).
4. gas meter, flow meter and the irreversible coupling arrangement of pipeline enclosure retaining of being used for according to claim 1 is characterized in that: described joint (1) side be provided with four at least in conjunction with sour jujube groove (8) on the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255899 CN2630808Y (en) | 2003-07-18 | 2003-07-18 | No-return irreversible connection device for gas meter and pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255899 CN2630808Y (en) | 2003-07-18 | 2003-07-18 | No-return irreversible connection device for gas meter and pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630808Y true CN2630808Y (en) | 2004-08-04 |
Family
ID=34295172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255899 Expired - Fee Related CN2630808Y (en) | 2003-07-18 | 2003-07-18 | No-return irreversible connection device for gas meter and pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630808Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592276B (en) * | 2009-07-07 | 2011-04-20 | 周阳 | Antitheft and anti-detaching gas meter corrugated pipe connector |
-
2003
- 2003-07-18 CN CN 03255899 patent/CN2630808Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592276B (en) * | 2009-07-07 | 2011-04-20 | 周阳 | Antitheft and anti-detaching gas meter corrugated pipe connector |
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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 |