CN203051347U - Connecting structure of spiral pipe - Google Patents
Connecting structure of spiral pipe Download PDFInfo
- Publication number
- CN203051347U CN203051347U CN 201320044732 CN201320044732U CN203051347U CN 203051347 U CN203051347 U CN 203051347U CN 201320044732 CN201320044732 CN 201320044732 CN 201320044732 U CN201320044732 U CN 201320044732U CN 203051347 U CN203051347 U CN 203051347U
- Authority
- CN
- China
- Prior art keywords
- volute
- nut
- spiral pipe
- liner
- connecting structure
- 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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- Gasket Seals (AREA)
Abstract
The utility model provides a connecting structure of a spiral pipe. The connecting structure of the spiral pipe comprises the spiral pipe, and a gasket is arranged on the outer periphery of the end portion of the spiral pipe. The connecting structure is characterized in that a nut is sleeved on the spiral pipe and the gasket, the end portion of the nut can be connected with the gasket in a clamped mode, inner threads are arranged in the nut, the sum of the length of outer threads on the end portion of the spiral pipe and the length of the gasket is smaller than the length of inner threads. By means of the connecting structure of the spiral pipe, the spiral pipe, the gasket and the nut are arranged so as to achieve connection of spiral pipes, and compared with the prior art, the connecting structure is simple in structure, part-saving, and capable of lowering manufacturing cost and improving production efficiency.
Description
Technical field
The utility model belongs to the tubing field, is specifically related to a kind of linkage structure of volute.
Background technique
Volute also claims Spiral Steel Pipe or spiral welded pipe, be to hang down carbon element structural steel or low-alloy structural steel steel band to be rolled into pipe by the angle (being formed angle) of certain helix, then pipe seam is welded and make, it can produce large diameter steel pipe with narrower band steel.The volute outside is helical, and the volute entire body is by the plastic layer upper shield, and plastic layer the inside has the spirality that is complementary with the body sectional shape, tightly is connected in outside the body.
At present, the linkage structure of volute on the market generally all comprises tubing and adapter, takes over the inner connecting tube material, takes over the outer fixed by nut of passing through, and is provided with cylindrical liner between volute end and the nozzle inner wall.But this linkage structure more complicated has increased the manufacture cost of volute virtually.
The model utility content
The utility model is at above-mentioned the deficiencies in the prior art, and a kind of linkage structure of volute of simple in structure, low cost of manufacture is provided.
The utility model is achieved by the following technical solution:
A kind of linkage structure of volute comprises volute, and the end excircle of described volute is provided with liner; It is characterized in that, be arranged with a nut on described volute and the liner, the end of described nut can with the liner clamping; Be provided with internal thread in the described nut, the length sum of the externally threaded length in volute end and liner is less than the length of described internal thread.
Further setting of the present utility model is that described liner is a cylindrical liner.
Further setting of the present utility model is that two ends of described volute are provided with liner and nut.
Further setting of the present utility model is that the end of described volute is provided with seal ring.
The linkage structure of volute described in the utility model only just can realize connection between the volute by volute, liner and nut are set, compare with linkage structure of the prior art, structure of the present utility model is simple more, saved component, reduce manufacture cost, improved manufacturing efficiency.
Description of drawings
Fig. 1 is the structural drawing of the linkage structure of volute described in the utility model;
Among the figure: volute 1, liner 2, nut 3.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model provides a kind of linkage structure of volute, comprises volute 1, and the end excircle of described volute 1 is provided with columniform liner 2; Be arranged with a nut 3 on described volute 1 and the liner 2, the end of described nut 3 can with liner 2 clampings; Nut 3 can be free to slide at volute 1 when not connecting; Be provided with internal thread in the described nut 3, the length sum of the externally threaded length in volute 3 ends and liner 2 is less than the length of described internal thread.When volute 1 connects, screw by nut 3 and pipe fitting, can realize the connection of volute.For volute 1 two ends all can be docked with other pipe fittings, two ends of described volute 1 are provided with liner 2 and nut 3.For the sealing after guaranteeing to connect, the end of described volute 1 is provided with seal ring.
The above is preferred embodiment of the present utility model, and all equivalent variations of doing according to the utility model claim all should belong to protection domain of the present utility model.
Claims (4)
1. the linkage structure of a volute comprises volute, and the end excircle of described volute is provided with liner; It is characterized in that, be arranged with a nut on described volute and the liner, the end of described nut can with the liner clamping; Be provided with internal thread in the described nut, the length sum of the externally threaded length in volute end and liner is less than the length of described internal thread.
2. the linkage structure of volute according to claim 1 is characterized in that, described liner is a cylindrical liner.
3. the linkage structure of volute according to claim 1 is characterized in that, two ends of described volute are provided with liner and nut.
4. the linkage structure of volute according to claim 1 is characterized in that, the end of described volute is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320044732 CN203051347U (en) | 2013-01-25 | 2013-01-25 | Connecting structure of spiral pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320044732 CN203051347U (en) | 2013-01-25 | 2013-01-25 | Connecting structure of spiral pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051347U true CN203051347U (en) | 2013-07-10 |
Family
ID=48734305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320044732 Expired - Fee Related CN203051347U (en) | 2013-01-25 | 2013-01-25 | Connecting structure of spiral pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051347U (en) |
-
2013
- 2013-01-25 CN CN 201320044732 patent/CN203051347U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20190125 |