CN204420378U - A kind of welded bellows - Google Patents
A kind of welded bellows Download PDFInfo
- Publication number
- CN204420378U CN204420378U CN201520074432.7U CN201520074432U CN204420378U CN 204420378 U CN204420378 U CN 204420378U CN 201520074432 U CN201520074432 U CN 201520074432U CN 204420378 U CN204420378 U CN 204420378U
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- CN
- China
- Prior art keywords
- link
- boss
- paragraph
- belled part
- welded bellows
- 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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Abstract
A kind of welded bellows, comprise body and link, body is provided with belled part and is positioned at the boss of one end, belled part, the outer surface of boss is provided with outside thread; The outer surface being set in belled part of link activity; Link comprises first paragraph and second segment, and the internal diameter of the first paragraph of link is less than the internal diameter of second segment; The internal surface of the first paragraph of link offers the first internal thread matched with outside thread.The purpose of this utility model is to provide a kind of welded bellows, by changing the means of fixation of body and link, directly can change after link damages, and can not cause the discarded of whole body, cost-saving.
Description
Technical field
The utility model relates to a kind of welded bellows.
Background technique
Generally the ripply metal diaphragm of band, the bellows that internal diameter and external diameter are alternately welded is called welded bellows.Along with the development of science and technology, the application of welded bellows expands increasingly.The predominant use of welded bellows is: the Detecting element as control mechanism, transmitter or regulator also can be used as the measuring cell of temperature, pressure and liquid level, also can make various sealing and energy transfer element etc.
And the existing welded bellows sealed for vacuum furnace, long brilliant stove need connect miscellaneous part usually at the two ends of body, the Placement of now conventional welded bellows is substantially all lean against link that body is arranged and other parts link together, and link mostly adopts welding manner to be fixed on body, if link has damage, scrapping of whole piece bellows can be caused, cause unnecessary loss.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of welded bellows, by changing the means of fixation of body and link, directly can change after link damages, and can not cause the discarded of whole body, cost-saving.
For achieving the above object, the utility model adopts following technological scheme:
A kind of welded bellows, comprise body and link, body is provided with belled part and is positioned at the boss of one end, belled part, the outer surface of boss is provided with outside thread; The outer surface being set in belled part of link activity; Link comprises first paragraph and second segment, and the internal diameter of the first paragraph of link is less than the internal diameter of second segment; The internal surface of the first paragraph of link offers the first internal thread matched with outside thread.
Preferably, the internal surface of the second segment of link is provided with the second internal thread, and the second internal thread and the first internal thread rotation are to contrary.
Preferably, the two ends of body are equipped with belled part and the link of band boss.
Preferably, body is fixedly connected with by soldering with belled part.
Preferably, boss is welded on belled part.
Preferably, boss is the cross section be fixed on belled part is E shape or C shape clasp.
Preferably, the second internal thread is left-handed thread, and the first internal thread is right-handed thread.
Preferably, the annular gap for placing seal ring is also provided with between the first paragraph of link and second segment.
The beneficial effects of the utility model are:
Compared to prior art, welded bellows of the present utility model, outer surface of tube body is set in by what arrange on body that boss and step surface make link activity, change the means of fixation of link and body, directly link is changed after link damages, the waste of resource can not be caused, cost-saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 be in Fig. 1 A-A to sectional view.
Reference character: 10, body; 11, boss; 20, link.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
A kind of welded bellows as shown in Figure 1-2, mainly comprises body 10, and this body 10 is provided with belled part, and belled part can be arranged on one end or the two ends of body 10, specifically one end of belled part is provided with boss 11, on boss 11, is provided with outside thread, the outer surface activity of belled part be socketed with link 20, and this link 20 is divided into first paragraph, second segment, and the internal diameter of link 20 first paragraph is less than the internal diameter of second segment, the internal surface of the first paragraph of concrete link 20 offers the first internal thread, first internal thread and outside thread match, the first paragraph of such link 20 is by rotating the outer surface that can be sleeved on body 10 through boss 11, certainly on one end away from boss 11 of above-mentioned belled part, also step surface is provided with, the setting of concrete step surface is then to prevent the first paragraph of link 20 movable to the one end away from boss 11, the first paragraph of such link 20 just can only be movable between boss 11 and step surface, the second segment of link 20 is then used to be connected with miscellaneous part.Preferably, can be the belled part and the link 20 that are equipped with band boss 11 at the two ends of body 10, and above-mentioned boss 11 is connected with belled part by welding, same belled part also can be welded on body 10.
In one embodiment, second internal thread can be set at the second segment of above-mentioned link 20, and the second internal thread and external thread rotary are to contrary, if outside thread and the second internal thread rotation are to identical, when rotating whole link 20, understand the first internal thread self offered when the first paragraph of link 20 arrives boss 11 and outside thread matches and departs from whole body 10; And only have outside thread and the second internal thread rotation to contrary, so just when the second segment of link 20 is screwed on miscellaneous part, can ensure that the first paragraph of link 20 always can not depart from body 10 through boss 11, makes whole device normally work.Certainly, above-mentioned situation is the problem that Shi Caixu considers that is spirally connected in link 20 and the Placement of miscellaneous part, if link 20 is only just socketed or clamping with the Placement of miscellaneous part, then the second internal thread and externally threaded relation can be considered or directly need not arrange the second above-mentioned internal thread.Generally, the first internal thread is left-handed thread, and the second internal thread is right-handed thread.In addition, between the first paragraph of above-mentioned link 20 and second segment, also can being provided with the annular gap for placing seal ring, can seal action being played in certain circumstances.
Specifically when using this welded bellows, first rotary connector 20, the first paragraph of link 20 is made to be screwed onto on boss 11, when continuing rotary connector 20, whole link 20 can be socketed on the belled part of this welded bellows through boss 11, and be also provided with step surface due to the other end of belled part, therefore link 20 meetings are movable between step surface and boss 11; Now, be connected with miscellaneous part by the second segment of this link 20.Like this when link 20 damages, only need again link 20 to be rotated through boss 11 and unload, again change link 20, without the need to changing body 10, cost-saving like this, easy and simple to handle.In other is implemented, above-mentioned boss 11 also can be arrange clasp by the direct one or both ends at body 10 to be formed, the clasp of concrete clasp can be cross section be C shape or E shape.
To one skilled in the art, according to technological scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.
Claims (8)
1. a welded bellows, comprises body and link, it is characterized in that, body is provided with belled part and is positioned at the boss of one end, belled part, the outer surface of boss is provided with outside thread; The outer surface being set in belled part of link activity; Link comprises first paragraph and second segment, and the internal diameter of the first paragraph of link is less than the internal diameter of second segment; The internal surface of the first paragraph of link offers the first internal thread matched with outside thread.
2. welded bellows as claimed in claim 1, it is characterized in that, the internal surface of the second segment of link is provided with the second internal thread, and the second internal thread and the first internal thread rotation are to contrary.
3. welded bellows as claimed in claim 1, is characterized in that, the two ends of body are equipped with belled part and the link of band boss.
4. welded bellows as claimed in claim 1, it is characterized in that, body is fixedly connected with by soldering with belled part.
5. welded bellows as claimed in claim 1, it is characterized in that, boss is welded on belled part.
6. welded bellows as claimed in claim 1, it is characterized in that, boss is the cross section be fixed on belled part is E shape or C shape clasp.
7. welded bellows as claimed in claim 2, it is characterized in that, the second internal thread is left-handed thread, and the first internal thread is right-handed thread.
8. welded bellows as claimed in claim 1, is characterized in that, being also provided with the annular gap for placing seal ring between the first paragraph of link and second segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074432.7U CN204420378U (en) | 2015-01-31 | 2015-01-31 | A kind of welded bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074432.7U CN204420378U (en) | 2015-01-31 | 2015-01-31 | A kind of welded bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420378U true CN204420378U (en) | 2015-06-24 |
Family
ID=53470748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520074432.7U Expired - Fee Related CN204420378U (en) | 2015-01-31 | 2015-01-31 | A kind of welded bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113614420A (en) * | 2019-03-25 | 2021-11-05 | Vat控股公司 | Diaphragm type corrugated pipe |
-
2015
- 2015-01-31 CN CN201520074432.7U patent/CN204420378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113614420A (en) * | 2019-03-25 | 2021-11-05 | Vat控股公司 | Diaphragm type corrugated pipe |
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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 |
Granted publication date: 20150624 Termination date: 20200131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |