CN220152155U - Expansion joint for annular pipeline compensation - Google Patents
Expansion joint for annular pipeline compensation Download PDFInfo
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- CN220152155U CN220152155U CN202321550851.4U CN202321550851U CN220152155U CN 220152155 U CN220152155 U CN 220152155U CN 202321550851 U CN202321550851 U CN 202321550851U CN 220152155 U CN220152155 U CN 220152155U
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- bellows
- expansion joint
- flange ring
- corrugated pipe
- compensation according
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses an expansion joint for annular pipeline compensation, which comprises an inner corrugated pipe, wherein an outer corrugated pipe is sleeved outside the inner corrugated pipe, a plurality of inserting connection rods are arranged on the lower surface of a flange ring, the free ends of the inserting connection rods penetrate through limiting plates and are connected with limiting blocks, a plurality of first elastic mechanisms sleeved on the inserting connection rods are arranged between the limiting blocks and the limiting plates, a plurality of threaded rods are arranged between the two flange rings, and both ends of each threaded rod penetrate through the flange ring.
Description
Technical Field
The utility model relates to an expansion joint for annular pipeline compensation.
Background
The expansion joint is a flexible structure which is arranged on a container shell or a pipeline in order to compensate additional stress caused by temperature difference and mechanical vibration, utilizes effective expansion deformation of the corrugated pipe of the working main body of the expansion joint to absorb dimensional changes caused by expansion and contraction of pipelines, pipes, containers and the like, or axial, transverse and angular displacement of the pipelines, the pipes, the containers and the like, can also be used for noise reduction and vibration reduction, and is also used for heat supply.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides an expansion joint for annular pipeline compensation.
The utility model provides an expansion joint for annular pipeline compensation, includes interior bellows, and the outside cover of interior bellows is equipped with outer bellows, and the both ends of interior bellows all are equipped with the limiting plate, and the both ends of outer bellows all link to each other with the flange ring through the connecting block, the lower surface of flange ring is equipped with a plurality of plug rods, and the free end of plug rod all runs through the limiting plate, extends to the inside of interior bellows to link to each other with the stopper, be equipped with a plurality of covers between stopper and the limiting plate and establish the first elastic mechanism on the plug rod, be equipped with a plurality of threaded rods between two flange rings, the flange ring is all passed at the both ends of threaded rod, and the both ends of threaded rod all link to each other with the flange ring is fixed through lock nut.
As a further improvement, all overlap on the threaded rod and be equipped with second elastic mechanism, second elastic mechanism can effectively reduce the vibration between the flange ring, reduces vibration frequency, absorbs vibration strength, improves the structural stability of whole expansion joint, through adjusting lock nut's position on the threaded rod, the self effort of rethread spring plays relative promotion effect to the flange ring, realizes the control to outer bellows length, has the compensation effect.
As a further improvement, the first elastic mechanism and the second elastic mechanism are springs, and double shock absorption is performed by using the first elastic mechanism and the second elastic mechanism, so that the structural stability of the expansion joint is ensured, and the service life of the expansion joint is prolonged.
As a further improvement, the cross sections of the inner corrugated pipe and the outer corrugated pipe are S-shaped, the extension rates of all parts of the S-shaped corrugated pipe are the same, the uniformity and consistency of the extension length are ensured, the stress of the corrugated pipe is improved, and the breakage of the corrugated pipe is effectively avoided.
As a further improvement, the shape of the inner corrugated pipe and the outer corrugated pipe is circular, and the shock absorption and shock resistance are greatly enhanced.
As a further improvement, the inner corrugated pipe and the outer corrugated pipe are concentric in arrangement, simple in structure and reasonable in design.
As a further improvement, the distance between the inner side wall of the flange ring and the center of the circle is smaller than the radius of the inner corrugated pipe, and the distance between the outer side wall of the flange ring and the center of the circle is larger than the radius of the outer corrugated pipe.
The beneficial effects are that:
the device realizes the compensation protection of the external corrugated pipe through the plug-in connection rod, the internal corrugated pipe and the spring fit, avoids the damage of the external corrugated pipe caused by the overlong extension length of the external corrugated pipe, can also effectively avoid the unloading force of the external corrugated pipe, has a supporting function, improves the structural strength of the expansion joint, avoids the deformation of a pipeline, prolongs the service life of the expansion joint, and solves the problem that the damage to the pipeline and the expansion joint is caused by the fact that the existing expansion joint exceeds the compensation limit, thereby causing the property loss.
The device has the advantages of simple structure, convenient installation, double-layer structural design, effective improvement of the service life of the expansion joint, structural stability and structural strength, and capability of greatly improving the impact resistance of the expansion joint.
Drawings
FIG. 1 is a schematic perspective view of an expansion joint;
FIG. 2 is a schematic view of the internal structure of the expansion joint;
FIG. 3 is a schematic end view of an expansion joint;
FIG. 4 is a schematic side view of an expansion joint;
1. the device comprises an outer corrugated pipe 2, an inner corrugated pipe 3, a flange ring 4, a threaded rod 5, a plug rod 6, a connecting block 7 and a locking nut.
Detailed Description
The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.
As shown in fig. 1 to 4, as a specific embodiment of the present utility model, an expansion joint for annular pipe compensation includes an outer bellows 1, an inner bellows 2, a flange ring 3, a threaded rod 4, a plug rod 5, a connection block 6, and a lock nut 7.
The utility model provides an expansion joint for annular pipeline compensation, includes interior bellows 2, and the outside cover of interior bellows 2 is equipped with outer bellows 1, and the both ends of interior bellows 2 all are equipped with the limiting plate, and the both ends of outer bellows 1 all link to each other with flange ring 3 through connecting block 6, the lower surface of flange ring 3 is equipped with a plurality of spliced pole 5, and the limiting plate is all run through to the free end of spliced pole 5, extends to the inside of interior bellows 2 to link to with the stopper, be equipped with a plurality of covers between stopper and the limiting plate and establish the first elastic mechanism on spliced pole 5, be equipped with a plurality of threaded rods 4 between two flange rings 3, the both ends of threaded rod 4 all pass flange ring 3, and the both ends of threaded rod 4 all link to each other with flange ring 3 is fixed through lock nut 7.
The second elastic mechanism is sleeved on the threaded rod 4, the second elastic mechanism can effectively reduce vibration between the flange rings 3, reduce vibration frequency, absorb vibration force, improve structural stability of the whole expansion joint, play a role in relatively pushing the flange rings 3 through adjusting self acting force of the locking nut 7 on the threaded rod 4, control the length of the external corrugated pipe 1, and have a compensation effect.
The first elastic mechanism and the second elastic mechanism are springs, double shock absorption is carried out by utilizing the first elastic mechanism and the second elastic mechanism, the structural stability of the expansion joint is ensured, and the service life of the expansion joint is prolonged.
The cross sections of the inner corrugated pipe 2 and the outer corrugated pipe 1 are S-shaped, the extension rates of all parts of the S-shaped corrugated pipes are the same, the uniformity and consistency of the extension lengths are ensured, the stress of the corrugated pipes is improved, and the breakage of the corrugated pipes is effectively avoided.
The inner corrugated pipe 2 and the outer corrugated pipe 1 are circular, so that the shock absorption and shock resistance are greatly enhanced.
The inner corrugated pipe 2 and the outer corrugated pipe 1 are concentric in arrangement, simple in structure and reasonable in design.
The distance between the inner side wall of the flange ring 3 and the center of the circle is smaller than the radius of the inner corrugated pipe 2, and the distance between the outer side wall of the flange ring 3 and the center of the circle is larger than the radius of the outer corrugated pipe 1.
During the use, can adjust the distance between the flange ring 3 through adjusting lock nut 7's position, because the self effort of second elastic mechanism can play the promotion effect to the flange ring 3, simultaneously have the shock attenuation effect, effectively reduce the vibration between the flange ring 3, reduce the vibration frequency, absorb vibration strength, improve the structural stability of whole expansion joint, have the compensation effect, outer bellows 1 can drive the separation of plug rod 5 in the extension process, because the effort of first elastic mechanism, make inner bellows 2 extend, then the effort of first spring can't continue outwards promote the flange ring 3 after the limit is extended to inner bellows 2, reach the effect of compensation protection, avoid extension length excessive.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (7)
1. The utility model provides an expansion joint for annular pipeline compensation, includes interior bellows, its characterized in that, the outside cover of interior bellows is equipped with outer bellows, and the both ends of interior bellows all are equipped with the limiting plate, and the both ends of outer bellows all link to each other with the flange ring through the connecting block, the lower surface of flange ring is equipped with a plurality of plug rods, and the limiting plate is all run through to the free end of plug rod, extends to the inside of interior bellows to link to with the stopper, be equipped with a plurality of covers between stopper and the limiting plate and establish the first elastic mechanism on the plug rod, be equipped with a plurality of threaded rods between two flange rings, the flange ring is all passed at the both ends of threaded rod, and the both ends of threaded rod all link to each other with the flange ring is fixed through lock nut.
2. An expansion joint for annular pipeline compensation according to claim 1, wherein the threaded rods are each sleeved with a second elastic mechanism.
3. An expansion joint for annular pipe compensation according to claim 1 or 2, wherein the first elastic means and the second elastic means are springs.
4. The expansion joint for annular pipe compensation according to claim 1, wherein the cross-sectional shapes of the inner bellows and the outer bellows are both "S" shapes.
5. The expansion joint for annular pipe compensation according to claim 1, wherein the inner bellows and the outer bellows are both annular in shape.
6. The expansion joint for annular pipe compensation according to claim 1, wherein the inner bellows and the outer bellows are concentrically arranged.
7. The expansion joint for annular pipe compensation according to claim 1, wherein the distance between the inner side wall of the flange ring and the center of the circle is smaller than the radius of the inner bellows, and the distance between the outer side wall of the flange ring and the center of the circle is larger than the radius of the outer bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321550851.4U CN220152155U (en) | 2023-06-16 | 2023-06-16 | Expansion joint for annular pipeline compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321550851.4U CN220152155U (en) | 2023-06-16 | 2023-06-16 | Expansion joint for annular pipeline compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220152155U true CN220152155U (en) | 2023-12-08 |
Family
ID=89017427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321550851.4U Active CN220152155U (en) | 2023-06-16 | 2023-06-16 | Expansion joint for annular pipeline compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220152155U (en) |
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2023
- 2023-06-16 CN CN202321550851.4U patent/CN220152155U/en active Active
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