CN101220890A - Improved connecting structure of bellows - Google Patents
Improved connecting structure of bellows Download PDFInfo
- Publication number
- CN101220890A CN101220890A CNA2008100592704A CN200810059270A CN101220890A CN 101220890 A CN101220890 A CN 101220890A CN A2008100592704 A CNA2008100592704 A CN A2008100592704A CN 200810059270 A CN200810059270 A CN 200810059270A CN 101220890 A CN101220890 A CN 101220890A
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- Prior art keywords
- bellows
- corrugated pipe
- liner
- nut
- adapter
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Abstract
The invention provides an improved connection structure of a corrugated pipe, belonging to the mechanical technical field. The invention solves the problem that the existing corrugated pipe is extremely inconvenient for assembly and disassembly. The improved connection structure of the corrugated pipe is arranged between the end of the corrugated pipe and a connecting pipe to be connected; the end part of the corrugated pipe is inserted into the connecting pipe; two tile-shaped linings are arranged between the corrugated pipe and the connecting pipe; the internal side surface of the lining has the shape which is matched with the external surface of the corrugated pipe; the corrugated pipe is also sheathed by a screw cap which is connected with the connecting pipe through a thread; the external side surface of the lining is provided with a convex retaining edge which pushes against the cap edge of the screw cap. As the retaining edge of the lining of the improved connection structure of the corrugated pipe is contacted with the cap edge of the screw cap, a plastic protection sleeve at the external side of the corrugated pipe is not required to be long spalled in the connection process of the corrugated pipe; the assembly of the invention is convenient, and the screw cap is not obstructed in the backing process when being disassembled; therefore, the disassembly is also more convenient.
Description
Technical field
The invention belongs to field of mechanical technique, particularly a kind of mechanical structure that bellows is connected with valve or pipe fitting of being used to.
Background technique
At present, the thin-wall corrugated tube that adopts stainless steel material to make can be crooked, and have the advantage of metal pipe concurrently, very is suitable for using in the pipelines such as tap water, oil and combustion gas.But it must be the prefabricated joint of engineering that deficiency is its linkage structure, finishes by specific linkage structure.Therefore, in use, the length of its pipe all is fixed length.This occasion that just makes that it can only be confined to is seldom used, and can not be used widely.
The applicant applied for once at the problems referred to above that China Patent No. was 200410084686.7 " a kind of linkage structure of bellows of novelty ", this linkage structure comprises two liners and a nut, the inboard of liner has the shape that is complementary with the bellows outer surface, spiro cap is on bellows, nut is connected with adapter by screw thread, and the shade of nut is blocked in the end of above-mentioned liner.
As can be seen, the linkage structure of above-mentioned bellows is to utilize liner to withhold on bellows, and bellows can not deviate from; Utilize nut to block liner then, fixedly connected with taking over just making bellows after adapter is connected at nut.Set seal ring can play the effect of sealing between adapter and bellows, leakage phenomenon occurs to prevent the joint.
But the outside of bellows also is with plastic protective sleeve usually, the plastic protective sleeve at corrugated tube end place need be peeled off when assembling, and therefore, very inconvenience seems in the practical set process.Simultaneously, peel off a part of protecting jacket after, outside the metalwork of bellows may be exposed to, influence attractive in appearancely, so also can make metalwork be subjected to extraneous medium effect and it is corroded.
In addition, when nut withdraws from when dismounting, can be subjected to stopping of plastic protective sleeve, dismounting is also difficult.
Summary of the invention
The objective of the invention is provides a kind of linkage structure of bellows of improvement at existing in prior technology the problems referred to above, makes it have characteristics such as easy to loading and unloading, beautiful shape and protection.
Purpose of the present invention can realize by following technical proposal: a kind of linkage structure of bellows of improvement, between the end of bellows and the adapter that will be connected, the end of bellows inserts in the adapter, the liner that two tiles are arranged between bellows and adapter, the inner side surface of liner has the shape that is complementary with the bellows outer surface, on bellows, also be with a nut, nut is connected with adapter by screw thread, it is characterized in that, described liner outer side surface has the retaining edge of protrusion, and retaining is along being resisted against on the shade of above-mentioned nut.
In the linkage structure of the bellows of this improvement, nut by be threaded in take over go up after, two liners are pressed on the bellows, thereby are fixedlyed connected with adapter in the end of bellows.
Simultaneously, because the retaining of liner outer side surface edge is resisted against on the shade of nut, such structure makes the internal diameter at nut shade place to do more.Therefore, just not needing plastic protective sleeve with the bellows outside to peel off in connection procedure very longly can connect too.
In the linkage structure of the bellows of above-mentioned improvement, described retaining is along the end that is positioned at liner.
In the linkage structure of the bellows of above-mentioned improvement, there is a shoulder block inboard of described adapter, and the end of bellows is resisted against on the shoulder block.Such structure makes the end of bellows and the direct formation of shoulder block be tightly connected firmly.
In the linkage structure of the bellows of above-mentioned improvement, described corrugated tube end forms by sealer or sealing gasket and shoulder block and is tightly connected.Can make the end of bellows be connected on the shoulder block firmly by sealer or sealing gasket.
Compared with prior art; the linkage structure of the bellows of this improvement is owing to the edge of the retaining on the liner contacts with the shade of nut; such structure makes that the space between bellows and the nut shade is bigger, does not need to peel off the plastic protective sleeve in the bellows outside very long in connecting the bellows process.Therefore, its assembling is more convenient.
Simultaneously, nut withdraws from the process and is not stopped during dismounting, therefore, dismantles also more convenient.In addition, the end of bellows is resisted against and directly forms sealing on the shoulder block of adapter, and such structure makes it simple in structure, has advantages of high practicability.
Description of drawings
Fig. 1 is the sectional structure schematic representation of linkage structure of the bellows of this improvement.
Fig. 2 is the transverse sectional view at liner place in the linkage structure of bellows of this improvement.
Fig. 3 is the perspective view of liner in the linkage structure of bellows of this improvement.
Among the figure, 1, bellows; 2, take over; 21, shoulder block; 3, liner; 31, retaining edge; 4, nut; 41, shade.
Embodiment
As shown in Figure 1, the linkage structure of the bellows of this improvement is between the end of bellows 1 and the adapter 2 that will be connected.
As shown in Figures 2 and 3, the end of bellows 1 inserts in to be taken in 2, and the liner 3 of two tiles is arranged between bellows 1 and adapter 2.The inner side surface of liner 3 has the shape that is complementary with bellows 1 outer side surface, and the outer side surface of liner 3 has the retaining of protrusion along 31, and retaining is along 31 ends that are positioned at liner 3.In the present embodiment, the inboard of liner 3 has two sections helical grooves that are complementary with bellows 1 outside, and certainly according to actual conditions, it also is feasible that the helical groove that is complementary with bellows 1 outside is one section.
Also be with a nut 4 on the bellows 1, nut 4 is connected with adapter 2 by screw thread.The retaining of above-mentioned liner 3 is resisted against on the shade 41 of nut 4 along 31.
The inboard of adapter 2 has shoulder block 21, and the end of bellows 1 is resisted against on the shoulder block 21.In the present embodiment, the end of bellows 1 is connected with shoulder block 21 by sealer or sealing gasket.
Take over 2 and be connected with bellows 1 in the process, bellows 1 is inserted in the adapter 2.In this process, liner 3 also put in the lump bellows 1 and takes between 2, and then will overlap with bellows 1 on nut 4 by being threaded in the adapter 2.Obviously, just can make two liners 3 after nut 4 connects, make that taking over 2 fixedlys connected with bellows 1 bellows 1 pushing down tightly.
Because the shoulder block 31 of liner 3 is resisted against on the shade 41 of nut 4, makes that like this internal diameter at nut 4 shades 41 places is bigger, that is to say that the plastic protective sleeve in bellows 1 outside in connection procedure does not need to peel off it very long.
Claims (4)
1. the linkage structure of the bellows of an improvement, between the end that is positioned at bellows (1) and the adapter that will be connected (2), the end of bellows (1) inserts in the adapter (2), the liner (3) that two tiles are arranged between bellows (1) and adapter (2), the inner side surface of liner (3) has the shape that is complementary with bellows (1) outer surface, on bellows (1), also be with a nut (4), nut (4) is connected with adapter (2) by screw thread, it is characterized in that, described liner (3) outer side surface has the retaining of protrusion along (31), and retaining is resisted against on the shade (41) of above-mentioned nut (4) along (31).
2. the linkage structure of the bellows of improvement according to claim 1 is characterized in that, described retaining is positioned at the end of liner (3) along (31).
3. the linkage structure of the bellows of improvement according to claim 1 and 2 is characterized in that, there is a shoulder block (21) inboard of described adapter (2), and the end of bellows (1) is resisted against on the shoulder block (21).
4. the linkage structure of the bellows of improvement according to claim 3 is characterized in that, described bellows (1) end forms by sealer or sealing gasket and shoulder block (21) and is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100592704A CN101220890A (en) | 2008-01-14 | 2008-01-14 | Improved connecting structure of bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100592704A CN101220890A (en) | 2008-01-14 | 2008-01-14 | Improved connecting structure of bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101220890A true CN101220890A (en) | 2008-07-16 |
Family
ID=39630894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100592704A Pending CN101220890A (en) | 2008-01-14 | 2008-01-14 | Improved connecting structure of bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101220890A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411065A (en) * | 2013-07-31 | 2013-11-27 | 浙江圣字管业股份有限公司 | Bellows seal pipe fitting |
| CN110107760A (en) * | 2019-03-11 | 2019-08-09 | 安徽格斯波纹管有限公司 | A kind of bellows with socket self-locking function |
-
2008
- 2008-01-14 CN CNA2008100592704A patent/CN101220890A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411065A (en) * | 2013-07-31 | 2013-11-27 | 浙江圣字管业股份有限公司 | Bellows seal pipe fitting |
| CN110107760A (en) * | 2019-03-11 | 2019-08-09 | 安徽格斯波纹管有限公司 | A kind of bellows with socket self-locking function |
| CN110107760B (en) * | 2019-03-11 | 2021-04-06 | 安徽格斯波纹管有限公司 | Corrugated pipe with sleeve self-locking function |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080716 |