CN220980671U - Bellows expansion joint with internal guiding structure - Google Patents
Bellows expansion joint with internal guiding structure Download PDFInfo
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- CN220980671U CN220980671U CN202323200091.7U CN202323200091U CN220980671U CN 220980671 U CN220980671 U CN 220980671U CN 202323200091 U CN202323200091 U CN 202323200091U CN 220980671 U CN220980671 U CN 220980671U
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- wall
- expansion joint
- ring
- bellows
- installation
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- 238000009434 installation Methods 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000004224 protection Effects 0.000 claims abstract description 11
- 230000000670 limiting effect Effects 0.000 claims description 24
- 238000003466 welding Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 230000002633 protecting effect Effects 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model provides a corrugated pipe expansion joint with an inner guide structure, and relates to the field of expansion joints. This take interior guide structure's bellows expansion joint, including the link, the inner wall of link is provided with restriction mechanism, the inner wall fixedly connected with installation cover of link, the inner wall threaded connection of installation cover has the installation end, and the one end rotation of installation end is connected with the bellows main part, and the inner wall of installation cover is provided with guiding mechanism, and guiding mechanism's inner wall is provided with protection machanism, and one side of installation end is provided with first sealing washer. This take interior guide structure's bellows expansion joint is provided with the installation end through the both ends at the bellows main part to be provided with the installation cover in the inboard of link, be provided with corresponding screw thread at the inner wall of installation cover and the surface of installation end simultaneously, in order to install and dismantle the bellows main part, be difficult to demolish the change after connecting end and bellows welding in solving current bellows expansion joint, need the whole change more extravagant problem.
Description
Technical Field
The utility model relates to a corrugated pipe expansion joint, in particular to a corrugated pipe expansion joint with an inner guide structure, and belongs to the technical field of expansion joints.
Background
The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and is easy to deform, and can compensate thermal expansion difference of the tube and the shell caused by different wall temperatures, so as to reduce the axial load of the tube and the shell, and the expansion joint of the corrugated tube is an expansion joint made of metal corrugated tube, can stretch along the axial direction of the tube and also allows a small amount of bending.
The existing bellows expansion joint mainly comprises connecting ends at two ends, a bellows is arranged in the middle of the two connecting ends, the two connecting ends and the two ends of the bellows are fixed in a welded mode, the bellows is easy to damage when being required to be loaded with axial loads in the middle, the connecting ends and the bellows are difficult to detach and replace after being welded, and the bellows is required to be integrally replaced.
Disclosure of utility model
(One) solving the technical problems
The utility model aims to provide the corrugated pipe expansion joint with the inner guide structure for solving the problems, so that the problem that the connecting end and the corrugated pipe in the existing corrugated pipe expansion joint are difficult to detach and replace after being welded and the integral replacement is required to be wasted is solved.
(II) technical scheme
The utility model is realized by the following technical scheme: the corrugated pipe expansion joint with the inner guide structure comprises a connecting end, a limiting mechanism is arranged on the inner wall of the connecting end, an installation sleeve is fixedly connected with the inner wall of the connecting end, an installation end is connected with the inner wall of the installation sleeve in a threaded manner, a corrugated pipe main body is connected with one end of the installation end in a rotating manner, a guide mechanism is arranged on the inner wall of the installation sleeve, and a protection mechanism is arranged on the inner wall of the guide mechanism.
Preferably, a first sealing ring is arranged on one side surface of the mounting end, the outer surface of the first sealing ring is in sliding connection with the inner wall of the mounting sleeve, the first sealing ring is arranged between the mounting end and the mounting sleeve, a sealing effect is achieved between the mounting end and the mounting sleeve, and the sealing performance between the mounting end and the mounting sleeve is improved.
Preferably, the limiting mechanism comprises a guide rod, the outer surface of the guide rod is in sliding connection with the inner wall of the connecting end, the outer surface of the guide rod is sleeved with a spring, threads are arranged at two ends of the guide rod, nuts are arranged at two ends of the guide rod, one end of the spring is positioned through the nuts, the other end of the spring is in contact with the connecting end, and the self-adapting buffering effect is achieved.
Preferably, the guiding mechanism comprises a limiting ring, the outer surface of the limiting ring is rotationally connected with the inner wall of the mounting sleeve, a guiding block is fixedly connected to one side surface of the limiting ring, the limiting ring is rotationally connected, the inside of the mounting sleeve is conveniently connected with the protecting mechanism, and the protecting mechanism is used for protecting the corrugated pipe body.
Preferably, the shape of guide block is the arc, the surface of guide block and the inner wall sliding connection of installation cover, a side sliding connection of guide block has the bulge loop, the surface of bulge loop and the inner wall fixed connection of installation end, and the quantity of guide block has three, and the angle between two adjacent guide blocks is one hundred twenty degrees, plays and aligns spacing effect.
Preferably, the protection mechanism comprises a fixed ring, a side surface of the fixed ring is fixedly connected with a second sealing ring, the outer surface of the fixed ring is in sliding connection with the inner wall of the limiting ring, the outer surface of the fixed ring is provided with openings, the number of the openings is three, and the angle between the openings is twenty degrees.
Preferably, a hose is fixedly connected to one side face of the fixing ring, the outer surface of the fixing ring is slidably connected with the outer surface of the guide block, the outer surface of the fixing ring is fixedly connected with the inner wall of the convex ring, the guide block is inserted into the opening of the fixing ring, the second sealing ring is in contact with the limiting ring, the sealing performance between the second sealing ring and the limiting ring is improved, an anti-corrosion coating is arranged on the inner wall of the hose, the hose stretches across the inside of the corrugated pipe body, the protecting effect is achieved on the inside of the corrugated pipe body, and corrosion of the corrosive liquid pushing the corrugated pipe body is reduced.
The utility model provides a corrugated pipe expansion joint with an inner guide structure, which has the following beneficial effects:
1. this take interior guide structure's bellows expansion joint is provided with the installation end through the both ends at the bellows main part to be provided with the installation cover in the inboard of link, be provided with corresponding screw thread at the inner wall of installation cover and the surface of installation end simultaneously, in order to install and dismantle the bellows main part, be difficult to demolish the change after connecting end and bellows welding in solving current bellows expansion joint, need the whole change more extravagant problem.
2. This take interior guide structure's bellows expansion joint is provided with first sealing washer in the inside of installation cover, improves the leakproofness between installation end and the installation cover through first sealing washer, is provided with the second sealing washer between restriction ring and the solid fixed ring simultaneously, improves the leakproofness between restriction ring and the solid fixed ring through the second sealing washer, further is provided with the hose between two to be provided with anticorrosive coating at the inner wall of hose, with the inner wall and the liquid separation of bellows main part, play the effect of protection to the bellows main part.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a partial cross-sectional view of the guard mechanism of the present utility model;
FIG. 3 is a cross-sectional view of a bellows body of the present utility model;
fig. 4 is an enlarged view of the structure of the portion a of fig. 3 according to the present utility model.
[ Main reference numerals Specification ]
1. A connection end;
2. a restriction mechanism; 201. a guide rod; 202. a spring;
3. a bellows body; 4. a mounting end; 5. a first seal ring; 6. a mounting sleeve;
7. A guide mechanism; 701. a confinement ring; 702. a guide block;
8. A convex ring;
9. a protective mechanism; 901. a fixing ring; 902. a second seal ring; 903. and (3) a hose.
Detailed Description
The embodiment of the utility model provides a corrugated pipe expansion joint with an inner guide structure.
Referring to fig. 1, 2, 3 and 4, the pipe joint comprises two connecting ends 1, the number of the connecting ends 1 is two, the two connecting ends 1 are symmetrically arranged at two sides, a plurality of protruding parts are arranged at the outer sides of the connecting ends 1, circular through holes are formed in the protruding parts, another group of circular holes distributed in a ring shape are formed in the circular through holes towards the axis direction of the connecting ends 1 so as to facilitate screw connection, the connecting ends 1 are arranged on a pipe, a limiting mechanism 2 is arranged on the inner wall of the connecting ends 1, the limiting mechanism 2 comprises a guide rod 201, the outer surface of the guide rod 201 is in sliding connection with the inner wall of the connecting ends 1, the guide rod 201 penetrates through the circular through holes on the protruding parts at the outermost sides of the connecting ends 1, springs 202 are sleeved on the outer surfaces of the guide rod 201, the springs 202 are positioned at the outer sides of the two connecting ends 1, threads are formed at two ends of the guide rod 201, the two ends of the guide rod 201 are respectively provided with a nut, the distance between two side edges of the nut is larger than the diameter of the spring 202, the spring 202 is prevented from falling off, one end of the spring 202 is positioned through the nut, the other end of the spring 202 is contacted with the connecting end 1, the buffer self-adaption effect is achieved, the inner wall of the connecting end 1 is fixedly connected with the mounting sleeve 6, the inner wall of the mounting sleeve 6 is in threaded connection with the mounting end 4, the maximum outer side curved surface diameter of the mounting end 4 is the same as the maximum outer side curved surface diameter of the mounting sleeve 6, the inner side of the mounting end 4, which is close to the mounting sleeve 6, is provided with a bevel ring shape corresponding to the bevel ring shape, which is close to the mounting end 4, is correspondingly contacted with the mounting end 4, one side surface of the mounting end 4 is provided with the first sealing ring 5, the outer surface of the first sealing ring 5 is in sliding connection with the inner wall of the mounting sleeve 6, the first sealing ring 5 is arranged between the mounting end 4 and the mounting sleeve 6, plays a sealing role between the mounting end 4 and the mounting sleeve 6, and improves the tightness between the mounting end 4 and the mounting sleeve 6.
Referring to fig. 1, 2 and 4 again, one end of the mounting end 4 is rotatably connected with the bellows main body 3, the inner wall of the mounting sleeve 6 is provided with the guide mechanism 7, the guide mechanism 7 comprises a limiting ring 701, the outer surface of the limiting ring 701 is rotatably connected with the inner wall of the mounting sleeve 6, one side surface of the limiting ring 701 is fixedly connected with a guide block 702, the limiting ring 701 is rotatably connected with the protecting mechanism 9, the protecting mechanism 9 is convenient to connect with the bellows main body 3, the protecting mechanism 9 is used for protecting the bellows main body 3, the guide block 702 is arc-shaped, the outer surface of the guide block 702 is slidably connected with the inner wall of the mounting sleeve 6, one side surface of the guide block 702 is slidably connected with a convex ring 8, the outer surface of the convex ring 8 is fixedly connected with the inner wall of the mounting end 4, the number of the guide blocks 702 is three, and the angle between two adjacent guide blocks 702 is one hundred twenty degrees, so as to achieve the effect of aligning and limiting.
Referring to fig. 3 and 4 again, the inner wall of the guiding mechanism 7 is provided with a protection mechanism 9, the protection mechanism 9 includes two fixing rings 901, a side surface of the fixing rings 901 is fixedly connected with a second sealing ring 902, the number of the fixing rings 901 is two, the two fixing rings 901 are symmetrically arranged at the inner sides of the two connecting ends 1, the outer surfaces of the fixing rings 901 are slidably connected with the inner wall of the limiting ring 701, the outer surfaces of the fixing rings 901 are provided with openings, the number of the openings is three, the angle between the openings is twenty degrees generally, one side surface of the fixing rings 901 is fixedly connected with a hose 903, the two fixing rings 901 are symmetrically distributed at two ends of the hose 903, the inner side of the fixing rings 901 is provided with an anti-corrosion coating, the fixing rings 901 are made of hard materials, the effect of plastic positioning is achieved, the two ends of the hose 903 are conveniently positioned, the outer surfaces of the fixing rings 901 are slidably connected with the outer surfaces of the guiding blocks 702, the outer surfaces of the fixing rings 901 are fixedly connected with the inner wall of the convex rings 8, the guiding blocks 702 are inserted into the openings of the fixing rings 901, the second sealing rings 902 are in contact with the limiting ring 902, the openings are three openings, the openings are formed in the inner walls of the limiting ring 903, the sealing rings are provided with the inner walls of the hose 903, the sealing rings are 3, the corrugated main body 3 and the corrugated main body 3 is provided with the anti-corrosion protection effect, the corrugated main body 3 is stretched across the inner side of the inner wall of the hose 3, and the corrugated main body is provided with the anti-corrosion protection effect, and the corrugated main body 3 is reduced.
The utility model is used when in use:
Working principle: firstly, be provided with the installation cover 6 in the inside of link 1, and be provided with the screw thread in the inside of installation cover 6, simultaneously all rotate at the both ends of bellows main part 3 and be connected with installation end 4, and be provided with the screw thread with installation cover 6 adaptation at the surface of installation end 4, through rotatory installation end 4, make installation end 4 rotatory enter into the inside of installation cover 6, assemble bellows main part 3 and link 1, be convenient for dismantle the change with damaged bellows main part 3 simultaneously, then be provided with bulge loop 8 in the inboard of installation end 4, and bulge loop 8 inboard is provided with solid fixed ring 901, insert the opening part of solid fixed ring 901 with guide block 702 simultaneously when installation end 4 inserts installation cover 6, then when installation end 4 rotates along the screw thread, insert solid fixed ring 901 inside, and keep sealed through second sealing washer 902 and restriction ring 701, span inside bellows main part 3 through the hose 903 of gu the other side of solid fixed ring 901, and the inner wall of hose 903 is provided with anticorrosive coating, avoid corrosive liquid to push away the inner wall of bellows main part 3 to cause erosion, the effect is played in protection.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. Bellows expansion joint of in-band guide structure, including link (1), its characterized in that: the inner wall of link (1) is provided with restriction mechanism (2), the inner wall fixedly connected with installation cover (6) of link (1), the inner wall threaded connection of installation cover (6) has installation end (4), the one end rotation of installation end (4) is connected with bellows main part (3), the inner wall of installation cover (6) is provided with guiding mechanism (7), the inner wall of guiding mechanism (7) is provided with protection machanism (9).
2. The bellows expansion joint with an internal guide structure according to claim 1, wherein: a first sealing ring (5) is arranged on one side surface of the mounting end (4), and the outer surface of the first sealing ring (5) is in sliding connection with the inner wall of the mounting sleeve (6).
3. The bellows expansion joint with an internal guide structure according to claim 1, wherein: the limiting mechanism (2) comprises a guide rod (201), the outer surface of the guide rod (201) is in sliding connection with the inner wall of the connecting end (1), and a spring (202) is sleeved on the outer surface of the guide rod (201).
4. The bellows expansion joint with an internal guide structure according to claim 1, wherein: the guide mechanism (7) comprises a limiting ring (701), the outer surface of the limiting ring (701) is rotationally connected with the inner wall of the mounting sleeve (6), and one side surface of the limiting ring (701) is fixedly connected with a guide block (702).
5. The bellows expansion joint with an internal guide structure according to claim 4, wherein: the shape of guide block (702) is the arc, the surface of guide block (702) and the inner wall sliding connection of installation cover (6), a side sliding connection of guide block (702) has bulge loop (8), the surface of bulge loop (8) and the inner wall fixed connection of installation end (4).
6. The bellows expansion joint with an internal guide structure according to claim 5, wherein: the protection mechanism (9) comprises a fixed ring (901), a second sealing ring (902) is fixedly connected to one side face of the fixed ring (901), and the outer surface of the fixed ring (901) is in sliding connection with the inner wall of the limiting ring (701).
7. The bellows expansion joint with an internal guide structure according to claim 6, wherein: a hose (903) is fixedly connected to one side face of the fixing ring (901), the outer surface of the fixing ring (901) is in sliding connection with the outer surface of the guide block (702), and the outer surface of the fixing ring (901) is fixedly connected with the inner wall of the convex ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323200091.7U CN220980671U (en) | 2023-11-27 | 2023-11-27 | Bellows expansion joint with internal guiding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323200091.7U CN220980671U (en) | 2023-11-27 | 2023-11-27 | Bellows expansion joint with internal guiding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220980671U true CN220980671U (en) | 2024-05-17 |
Family
ID=91037054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323200091.7U Active CN220980671U (en) | 2023-11-27 | 2023-11-27 | Bellows expansion joint with internal guiding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220980671U (en) |
-
2023
- 2023-11-27 CN CN202323200091.7U patent/CN220980671U/en active Active
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| GR01 | Patent grant |