CN208457405U - A kind of circumferential direction waveform rotary joint - Google Patents
A kind of circumferential direction waveform rotary joint Download PDFInfo
- Publication number
- CN208457405U CN208457405U CN201821122332.7U CN201821122332U CN208457405U CN 208457405 U CN208457405 U CN 208457405U CN 201821122332 U CN201821122332 U CN 201821122332U CN 208457405 U CN208457405 U CN 208457405U
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- circumferential
- disk
- bellows
- flange disk
- rotary joint
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Abstract
The utility model provides a kind of circumferential waveform rotary joint, the rotary joint including circumferential bellows and set on circumferential bellows both ends；The tube wall of the circumferential direction bellows prolongs it and circumferentially folds, and forms several axial troughs and axial wave crest, and axial trough and axial wave crest prolong its circumferentially staggered distribution and form circumferential ripple；The rotary joint includes the first flange disk connecting with circumferential bellows, the cutting ferrule connecting with first flange disk, and the first flange disk and cutting ferrule are fastenedly connected by connector.The utility model is by being arranged circumferential bellows, when the diameter of the axial wave crest of circumferential bellows is restricted, it can be by reducing the diameter of axial trough to increase the wave height of circumferential bellows, it is improved the circumferentially displaced compensation rate of circumferential bellows, due to its circumferential direction have elasticity thus have circumferentially displaced compensation rate, the circumferential stress of circumferential bellows can be reduced；Since circumferential bellows can be ± 120 ° circumferentially rotatable, axial displacement can be absorbed simultaneously, it is possible to reduce the axial stress of circumferential bellows, therefore the reliability of circumferential bellows is higher.
Description
Technical field
The utility model belongs to rotary joint technical field, more particularly, to a kind of circumferential waveform rotary joint.
Background technique
Due to the connection size connection structure that is not identical, or not matching for two pipe fittings for needing to connect, therefore
It needs to be attached it using rotary joint, does not have elasticity because compensating without axial displacement with circumferential due to axial
Amount and circumferentially displaced compensation rate, the axial and circumferential when installing rotary joint along rotary joint can generate axial stress and circumferential direction
Stress.
For example, the solar energy heat collection pipe in solar-powered heating system can be rotated with moving for the sun at present, this
When solar energy heat collection pipe and thermal-arrest female groove between relative displacement can occur, primarily now using metal hose and rotary joint
Solar energy heat collection pipe and thermal-arrest female groove are attached；Metal hose and rotary joint all have superior sealing performance, can protect
Demonstrate,prove the sealing under solar-powered heating system dynamic change；Difference between the two is that metal hose mainly absorbs axial displacement
(stretching), can not large area absorption angular displacement；Rotary joint then in contrast, can not absorb axial displacement, but can absorb too
Positive energy thermal-collecting tube is angularly rotated due to the large area that solar tracking displacement generates；One of both, which is used alone, will lead to life consumption mistake
Greatly, installation accuracy requires excessively high, is used in combination, can compensate circumferentially displaced and axial displacement；But the combined use of the two,
It is the higher cost being used cooperatively, reliable although the good Dynamic link library of solar energy heat collection pipe Yu thermal-arrest female groove may be implemented
Property is poor.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of circumferential waveform rotary joints, can both reduce circumferential direction
Stress, and axial stress can be reduced, have the characteristics that at low cost, good reliability, long service life.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of circumferential direction waveform rotary joint, packet
Include circumferential bellows and the rotary joint set on circumferential bellows both ends；
The tube wall of the circumferential direction bellows prolongs it and circumferentially folds, and forms several axial troughs and axial wave crest, and axial
Trough and axial wave crest prolong its circumferentially staggered distribution and form circumferential ripple；
The rotary joint includes the first flange disk connecting with circumferential bellows, the cutting ferrule connecting with first flange disk,
The first flange disk and cutting ferrule are fastenedly connected by connector.
Further, the both ends of the circumferential bellows are welded to connect with first flange disk respectively, the first flange disk
Including the first disk and the second disk, second disk is set to inside the first disk, and is integrally formed, first disk
The center of circle and the center of circle of the second disk coincide, and the height of second disk is greater than the height of the first disk, first disk
Surrounding offer several first through hole, offer the second through-hole at the center of second disk.
Further, the cutting ferrule includes second flange disk, and the second flange disk and first flange disk pass through connector
It is fastenedly connected.
Further, the surrounding of the second flange disk offers the third through-hole to match with first through hole, and described
The center of two ring flanges offers fourth hole, and fourth hole is identical as the diameter of the second through-hole.
Further, flange gasket is equipped between the first flange disk and second flange disk.
Further, the cutting ferrule further includes cutting ferrule main body and cutting ferrule nut, and one end of the cutting ferrule main body is equipped with second
Ring flange, and the cutting ferrule main body and second flange disk are integrally formed, the other end of the cutting ferrule main body far from second flange disk
Equipped with external screw thread, the internal screw thread of the external screw thread and cutting ferrule nut matches.
Compared with prior art, the utility model has the advantage that is with beneficial effect:
1, the utility model is by being arranged circumferential bellows, when the diameter of the axial wave crest of circumferential bellows is restricted
When, the circumferentially displaced compensation of circumferential bellows can be made by reducing the diameter of axial trough to increase the wave height of circumferential bellows
Amount is improved, due to its circumferential direction have elasticity thus there is circumferentially displaced compensation rate, the circumferential direction that can reduce circumferential bellows answers
Power；Since circumferential bellows can be ± 120 ° circumferentially rotatable, axial displacement can be absorbed simultaneously, it is possible to reduce circumferential bellows
Axial stress, therefore the reliability of circumferential bellows is higher.
2, the utility model circumferential direction waveform rotary joint is at low cost, and replaces traditional gold using circumferential waveform rotary joint
Belong to hose and revolve being used cooperatively for adapter coupling, more reduces the cost of solar-powered heating system.
3, circumferential bellows and first flange disk welded connecting and the first disk and the second disk one in the utility model
It is body formed, it is not only easy to use, and be hardly damaged, while favorable sealing property.
4, in the utility model between first flange disk and second flange disk be equipped with flange gasket, enhance rotary joint with
Leakproofness between connecting tube.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of circumferential waveform rotary joint of the utility model.
Fig. 2 is a kind of structural schematic diagram of circumferential waveform rotary joint of the utility model.
Fig. 3 is a kind of main view of circumferential waveform rotary joint of the utility model.
Fig. 4 is a kind of circumferential waveform rotary joint of the utility model along axial cross-sectional view.
Fig. 5 is a kind of cross-sectional view of circumferential waveform rotary joint of the utility model circumferentially.
Fig. 6 is the cross-sectional view of first flange disk in the utility model.
Fig. 7 is the structural schematic diagram of cutting ferrule in the utility model.
Fig. 8 is structural schematic diagram when cutting ferrule is installed on solar energy heat collection pipe in the utility model.
In figure: 1, circumferential bellows；2, first flange disk；3, second flange disk；4, cutting ferrule main body；5, cutting ferrule nut；6,
Solar energy heat collection pipe；7, opening compresses ring；8, concave compression ring；9, by O-ring seal；21, the first disk；22, the second disk；
23, first through hole；24, the second through-hole；31, third through-hole；32, fourth hole.
Specific embodiment
It elaborates with reference to the accompanying drawing to specific embodiment of the present utility model.
As shown in figures 1-8, a kind of circumferential waveform rotary joint, including circumferential bellows 1 and it is set to circumferential bellows 1
The rotary joint at both ends；The tube wall of the circumferential direction bellows 1 prolongs it and circumferentially folds, and forms several axial troughs and axial wave
Peak, and axial trough and axial wave crest prolong its circumferentially staggered distribution and form circumferential ripple；The rotary joint includes and circumferential direction
The first flange disk 2 of the connection of bellows 1, the cutting ferrule connecting with first flange disk 2, the first flange disk 2 pass through company with cutting ferrule
Fitting is fastenedly connected, and the connector includes the bolt through first through hole 23 and third through-hole 31, and and bolt matching
Nut, first flange disk 2 and second flange disk 3 are fastened by tightening bolts and nuts, due to the first flange
It is equipped with flange gasket between disk 2 and second flange disk 3, preferably circumferential waveform rotary joint can be sealed.The week
It is welded to connect respectively with first flange disk 2 to the both ends of bellows 1, the first flange disk 2 includes the first disk 21 and second
Disk 22, second disk 22 are set to inside the first disk 21, and are integrally formed, and circumferential bellows 1 is welded with first flange disk 2
It connects in succession and the first disk 21 and the second disk 22 is integrally formed, be not only easy to use, and be hardly damaged, while leakproofness
It can be good；The center of circle of first disk 21 and the center of circle of the second disk 22 coincide, and the height of second disk 22 is greater than
The height of first disk 21, the surrounding of first disk 21 offer several first through hole 23, second disk 22
The second through-hole 24 is offered at center.The cutting ferrule includes second flange disk 3, and the second flange disk 3 and first flange disk 2 are logical
Connector is crossed to be fastenedly connected；The surrounding of the second flange disk 3 offers the third through-hole 31 to match with first through hole 23, institute
The center for stating second flange disk 3 offers fourth hole 32, and fourth hole 32 is identical as the diameter of the second through-hole 24；The card
Set further includes cutting ferrule main body 4 and cutting ferrule nut 5, and one end of the cutting ferrule main body 4 is equipped with second flange disk 3, and the cutting ferrule master
Body 4 and second flange disk 3 are integrally formed, and the cutting ferrule main body 4 is equipped with external screw thread far from the other end of second flange disk 3, described
The internal screw thread of external screw thread and cutting ferrule nut 5 matches.
Working principle: the distance between bottom of the axial trough of circumferential bellows 1 to the top of axial wave crest is circumferential
The wave height of bellows, as existing bellows, wave height is a critically important parameter of bellows, to the shadow of displacement
Sound is very big, and such structure, can be by reducing axial trough when the diameter of the axial wave crest of circumferential bellows 1 is restricted
Diameter to increase the wave height of circumferential bellows 1, be improved the circumferentially displaced compensation rate of axial bellows.Due to circumferential wave
Line pipe 1 can be ± 120 ° circumferentially rotatable, can absorb axial displacement simultaneously, it is possible to reduce the axial stress of circumferential bellows 1,
Therefore the reliability of circumferential bellows 1 is higher；Wave height is less than or equal to the 1/2 of outside diameter of bel, and circumferential bellows 1 can be improved
Circumferentially displaced compensation rate and bearing capacity.
When it is implemented, cutting ferrule nut 5 is inserted in outside the solar energy heat collection pipe 6 of dimension, then successively by one
Opening compresses ring 7 is inserted in solar energy heat collection pipe 6, and concave compression ring 8 is inserted in solar energy heat collection pipe 6, O-ring seal 9 is inserted in
Solar energy heat collection pipe 6 is inserted into cutting ferrule main body 4 by solar energy heat collection pipe 6, until one end of solar energy heat collection pipe 6 and second flange
Disk 3 is flush, then with spanner by cutting ferrule nut 5 and 4 screw-threaded coupling of cutting ferrule main body, then installs in the end face of second flange disk 3
Flange gasket is inserted into bolt, is then inserted in nut, tightens after being aligned first through hole 23 and third through-hole 31, and rotation connects at this time
Head connect completion with solar energy heat collection pipe 6, and circumferential waveform rotation can be completed in same operation connection rotary joint and thermal-arrest female groove
The connection of adapter and solar energy heat collection pipe 6 and thermal-arrest female groove；The utility model circumferential direction waveform rotary joint is at low cost, and uses
Circumferential waveform rotary joint replaces traditional metal hose and revolves being used cooperatively for adapter coupling, more reduces solar-powered heating system
The cost of system.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (6)
1. a kind of circumferential direction waveform rotary joint, it is characterised in that: including circumferential bellows (1) and be set to circumferential bellows (1)
The rotary joint at both ends；
The tube wall of the circumferential direction bellows (1) prolongs it and circumferentially folds, and forms several axial troughs and axial wave crest, and axial wave
Paddy and axial wave crest prolong its circumferentially staggered distribution and form circumferential ripple；
The rotary joint includes the first flange disk (2) connecting with circumferential bellows (1), connect with first flange disk (2)
Cutting ferrule, the first flange disk (2) and cutting ferrule are fastenedly connected by connector.
2. a kind of circumferential waveform rotary joint according to claim 1, it is characterised in that: the circumferential direction bellows (1)
Both ends are welded to connect with first flange disk (2) respectively, and the first flange disk (2) includes the first disk (21) and the second disk
(22), it is internal to be set to the first disk (21) for second disk (22), and is integrally formed, the center of circle of first disk (21) with
The center of circle of second disk (22) coincides, and the height of second disk (22) is greater than the height of the first disk (21), and described the
The surrounding of one disk (21) offers several first through hole (23), and it is logical that second is offered at the center of second disk (22)
Hole (24).
3. a kind of circumferential waveform rotary joint according to claim 1, it is characterised in that: the cutting ferrule includes second flange
Disk (3), the second flange disk (3) are fastenedly connected with first flange disk (2) by connector.
4. a kind of circumferential waveform rotary joint according to claim 3, it is characterised in that: the second flange disk (3)
Surrounding offers the third through-hole (31) to match with first through hole (23), and the center of the second flange disk (3) offers the
Four through-holes (32), and fourth hole (32) is identical as the diameter of the second through-hole (24).
5. a kind of circumferential waveform rotary joint according to claim 3, it is characterised in that: the first flange disk (2) with
Flange gasket is equipped between second flange disk (3).
6. a kind of circumferential waveform rotary joint according to claim 3, it is characterised in that: the cutting ferrule further includes cutting ferrule master
Body (4) and cutting ferrule nut (5), one end of the cutting ferrule main body (4) are equipped with second flange disk (3), and the cutting ferrule main body (4) with
Second flange disk (3) is integrally formed, and the cutting ferrule main body (4) is equipped with external screw thread far from the other end of second flange disk (3), described
External screw thread and the internal screw thread of cutting ferrule nut (5) match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821122332.7U CN208457405U (en) | 2018-07-16 | 2018-07-16 | A kind of circumferential direction waveform rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821122332.7U CN208457405U (en) | 2018-07-16 | 2018-07-16 | A kind of circumferential direction waveform rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208457405U true CN208457405U (en) | 2019-02-01 |
Family
ID=65179356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821122332.7U Active CN208457405U (en) | 2018-07-16 | 2018-07-16 | A kind of circumferential direction waveform rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208457405U (en) |
-
2018
- 2018-07-16 CN CN201821122332.7U patent/CN208457405U/en active Active
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