CN215635683U - High leakproofness expansion joint - Google Patents
High leakproofness expansion joint Download PDFInfo
- Publication number
- CN215635683U CN215635683U CN202121372777.2U CN202121372777U CN215635683U CN 215635683 U CN215635683 U CN 215635683U CN 202121372777 U CN202121372777 U CN 202121372777U CN 215635683 U CN215635683 U CN 215635683U
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- Prior art keywords
- pipe
- corrugated pipe
- flange
- wall
- expansion joint
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a high-sealing expansion joint which comprises a corrugated pipe, wherein two ends of the corrugated pipe are communicated with connecting flanges, connecting pipes are arranged in the connecting flanges, the end part, located on the outer side of the corrugated pipe, of each connecting pipe is provided with an outer inclined part, the end part, located on the inner side of the corrugated pipe, of each connecting pipe is provided with an inner inclined part, the outer wall of each connecting pipe is fixedly sleeved with a fixing ring, the inner wall of each connecting flange is provided with a clamping groove matched with the corresponding fixing ring, and the fixing rings are clamped in the clamping grooves. According to the utility model, the connecting pipe is arranged on the inner wall of the connecting flange, the outer inclined part of the connecting pipe can be inserted into the connecting pipeline, and the inner inclined part of the connecting pipe is positioned in the corrugated pipe and sealed with the corrugated pipe, so that the direct impact of high-pressure liquid on the connecting part of the corrugated pipe and the connecting flange can be avoided, the problem that the corrugated pipe and the connecting flange are easy to leak due to the weak connecting part can be avoided, and the sealing property of the connecting flange is improved.
Description
Technical Field
The utility model relates to the technical field of expansion joints, in particular to an expansion joint with high sealing property.
Background
A compensator is also conventionally called an expansion joint or a telescopic joint, and consists of a corrugated pipe (an elastic element) and accessories such as an end pipe, a bracket, a flange, a conduit and the like which form a working main body of the compensator, and belongs to a compensation element; the effective telescopic deformation of the working main body corrugated pipe is utilized to absorb the dimensional change of pipelines, ducts, containers and the like caused by expansion with heat and contraction with cold and the like, or compensate the axial, transverse and angular displacement of the pipelines, ducts, containers and the like, and the corrugated pipe can also be used for noise reduction and vibration reduction; has wide application in modern industry; in order to prevent the pipeline from deforming or breaking due to thermal elongation or temperature stress when the heating pipeline is heated, a compensator is required to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure are reduced.
However, the existing expansion joint is poor in sealing performance, when pressure liquid exists in an inner conveying belt of the expansion joint, the connection part of the expansion joint and the connecting flange is weak, and the high-pressure liquid is easy to leak from the connection part of the expansion joint and the connecting flange, so that the sealing performance of the expansion joint is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides an expansion joint with high sealing property.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a high leakproofness expansion joint, includes the bellows, the both ends of bellows all communicate to be provided with the connecting pipe in flange and the flange, the outside rake has been seted up to the tip that the connecting pipe is located the bellows outside, the connecting pipe is located the inboard tip of bellows and has seted up inboard rake, the fixed cup joint of outer wall of connecting pipe has solid fixed ring, flange's inner wall is seted up and is fixed ring matched with joint groove and solid fixed ring joint at the joint inslot, the inboard rake and the bellows inner wall sealing connection of connecting pipe, two be provided with guiding mechanism between the flange.
Preferably, guiding mechanism is including articulating the telescopic link at right side flange left surface, the piston rod end of telescopic link articulates the right flank at left side flange, two be provided with the spring between the flange and the telescopic link is located the spring.
Preferably, two flange's opposite face all articulates there is the connecting block, the piston rod end of telescopic link and telescopic link articulates respectively in the one side that two connecting blocks are relative.
Preferably, two opposite faces of the connecting flange are provided with two rubber blocks, and the connecting blocks are arranged between the two groups of rubber blocks respectively.
Preferably, a baffle is fixed on the inner wall of a corrugated joint of the corrugated pipe, two fixing plates are arranged on the outer wall of the connecting pipe, which is positioned inside the corrugated pipe, and the baffle is positioned between the two fixing plates.
Preferably, the waterproof layer is coated on the inner wall of the corrugated pipe, and the anti-pulling steel wire mesh is arranged inside the corrugated pipe.
Compared with the prior art, the utility model has the beneficial effects that:
1: according to the utility model, the connecting pipe is arranged on the inner wall of the connecting flange, the outer inclined part of the connecting pipe can be inserted into the connecting pipeline, and the inner inclined part of the connecting pipe is positioned in the corrugated pipe and sealed with the corrugated pipe, so that the direct impact of high-pressure liquid on the connecting part of the corrugated pipe and the connecting flange can be avoided, the problem that the corrugated pipe and the connecting flange are easy to leak due to the weak connecting part can be avoided, and the sealing property of the connecting flange is improved.
2: according to the corrugated pipe compensation connecting device, the telescopic rod, the spring and the connecting block are matched for use, guidance can be provided for the corrugated pipe when the corrugated pipe stretches, the corrugated pipe can be conveniently restored to the original shape under the elastic stress of the spring, the rubber block and the connecting block are matched for use, the rubber block can provide limiting force for the telescopic rod when the corrugated pipe compensation connecting pipeline axially deviates, the corrugated pipe is prevented from being blocked due to overlarge corrugated pipe deformation caused by overlarge corrugated pipe deviation, and the corrugated pipe can be prevented from being broken due to overlarge corrugated pipe deformation.
Drawings
FIG. 1 is a schematic structural view of a high-sealability expansion joint according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic structural diagram of a connecting pipe of a high-sealability expansion joint according to the present invention.
In the figure: 1. a bellows; 2. a connecting pipe; 3. an outer inclined portion; 4. a fixing ring; 5. a telescopic rod; 6. a spring; 7. connecting blocks; 8. a rubber block; 9. a connecting flange; 10. a fixing plate; 11. an inner inclined portion; 12. and a baffle plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-3, a high-sealing expansion joint comprises a corrugated pipe 1, both ends of the corrugated pipe 1 are communicated with connecting flanges 9, a connecting pipe 2 is arranged in the connecting flanges 9, the end part of the connecting pipe 2, which is positioned at the outer side of the corrugated pipe 1, is provided with an outer inclined part 3, the end part of the connecting pipe 2, which is positioned at the inner side of the corrugated pipe 1, is provided with an inner inclined part 11, the outer wall of the connecting pipe 2 is fixedly sleeved with a fixing ring 4, the inner wall of the connecting flange 9 is provided with a clamping groove matched with the fixing ring 4, the fixing ring 4 is clamped in the clamping groove, the inner inclined part 11 of the connecting pipe 2 is in sealing connection with the inner wall of the corrugated pipe 1, a guide mechanism is arranged between the two connecting flanges 9, a baffle 12 is fixed on the inner wall of the corrugated pipe 1, the outer wall of the connecting pipe 2, which is positioned at the inner side of the corrugated pipe 1, is provided with two fixing plates 10, the baffle 12 is positioned between the two fixing plates 10, the inner wall of the corrugated pipe 1 is coated with a waterproof layer, and a tensile steel wire mesh is arranged inside the corrugated pipe 1. When in use, the device is arranged between two pipelines through the connecting flange 9, the extensibility of the two pipelines is compensated through the corrugated pipe 1, the connecting pipe 2 is arranged on the inner wall of the connecting flange 9, the outer inclined part 3 of the connecting pipe 2 can be inserted into the connecting pipeline, the inner inclined part 11 of the connecting pipe 2 is positioned in the corrugated pipe 1 and sealed with the corrugated pipe, the connecting part between the corrugated pipe 1 and the connecting flange 9 can be prevented from being directly impacted by high-pressure liquid, the problem that the corrugated pipe 1 and the connecting flange 9 are easy to leak due to the weak connecting part can be avoided, the sealing performance is improved, the position of the connecting pipe 2 can be fixed through the matching of the fixing ring 4 fixedly sleeved with the outer wall of the connecting pipe 2 by the clamping groove, the phenomena of deviation and shaking of the connecting pipe 2 in the connecting flange 9 can be avoided, and the matching of the two fixing plates 10 and the baffle 12 can be used, the connecting tube 2 may be further fixed to improve its stability.
Example 2
Referring to fig. 1 to 3, in the case where the other parts are the same as those of embodiment 1, this embodiment is different from embodiment 1 in that: the guiding mechanism comprises an expansion link 5 hinged on the left side surface of a right connecting flange 9, the tail end of a piston rod of the expansion link 5 is hinged on the right side surface of the left connecting flange 9, a spring 6 is arranged between the two connecting flanges 9, the expansion link 5 is positioned in the spring 6, the opposite surfaces of the two connecting flanges 9 are hinged with connecting blocks 7, the tail ends of the piston rods of the expansion link 5 and the expansion link 5 are respectively hinged on the opposite surfaces of the two connecting blocks 7, through the matched use of the expansion link 5, the spring 6 and the connecting blocks 7, the corrugated pipe 1 can be guided when being expanded and contracted, the corrugated pipe 1 can be conveniently restored to the original shape under the elastic stress of the spring 6, the opposite surfaces of the two connecting flanges 9 are respectively provided with two rubber blocks 8, the two connecting blocks 7 are respectively arranged between the two groups of rubber blocks 8, through the matched use of the rubber blocks 8 and the connecting blocks 7, the rubber blocks 8 can provide limiting force for the expansion link 5 when the corrugated pipe 1 compensates for the axial deviation of a connecting pipeline, the corrugated pipe 1 is prevented from being blocked due to overlarge deformation caused by overlarge offset of the corrugated pipe 1, the corrugated pipe 1 can be prevented from being broken due to overlarge deformation, and the service life of the corrugated pipe 1 is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a high leakproofness expansion joint, includes bellows (1), its characterized in that, the both ends of bellows (1) all communicate to have and are provided with connecting pipe (2) in flange (9) and flange (9), outside rake (3) have been seted up to the tip that connecting pipe (2) are located the bellows (1) outside, connecting pipe (2) are located the inboard tip of bellows (1) and have seted up inboard rake (11), the outer wall of connecting pipe (2) is fixed to have cup jointed solid fixed ring (4), the inner wall of connecting flange (9) is seted up and is fixed the ring (4) matched with joint groove and gu fixed ring (4) joint at the joint inslot, inboard rake (11) and bellows (1) inner wall sealing connection, two of connecting pipe (2) are provided with guiding mechanism between flange (9).
2. The expansion joint with high sealing performance as claimed in claim 1, wherein the guiding mechanism comprises a telescopic rod (5) hinged on the left side surface of the right connecting flange (9), the end of a piston rod of the telescopic rod (5) is hinged on the right side surface of the left connecting flange (9), a spring (6) is arranged between the two connecting flanges (9), and the telescopic rod (5) is located in the spring (6).
3. The expansion joint with high sealing performance as claimed in claim 2, wherein the opposite surfaces of the two connecting flanges (9) are hinged with connecting blocks (7), and the ends of the piston rods of the telescopic rod (5) and the telescopic rod (5) are respectively hinged on the opposite surfaces of the two connecting blocks (7).
4. A high-tightness expansion joint according to claim 3, characterized in that two rubber blocks (8) are arranged on the opposite faces of the two connecting flanges (9), and the two connecting blocks (7) are respectively arranged between the two groups of rubber blocks (8).
5. The expansion joint with high sealing performance as claimed in claim 1, wherein the inner wall of the corrugated joint of the corrugated pipe (1) is fixed with a baffle (12), the outer wall of the connecting pipe (2) positioned inside the corrugated pipe (1) is provided with two fixing plates (10), and the baffle (12) is positioned between the two fixing plates (10).
6. The high-sealing expansion joint as claimed in claim 1, wherein the inner wall of the corrugated pipe (1) is coated with a waterproof layer, and a steel wire mesh which is resistant to pulling is arranged inside the corrugated pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121372777.2U CN215635683U (en) | 2021-06-21 | 2021-06-21 | High leakproofness expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121372777.2U CN215635683U (en) | 2021-06-21 | 2021-06-21 | High leakproofness expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215635683U true CN215635683U (en) | 2022-01-25 |
Family
ID=79944163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121372777.2U Expired - Fee Related CN215635683U (en) | 2021-06-21 | 2021-06-21 | High leakproofness expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215635683U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467391A (en) * | 2022-02-22 | 2022-05-13 | 山西农业大学经济作物研究所 | Special rotary seeder for polygala tenuifolia |
| CN114838219A (en) * | 2022-06-06 | 2022-08-02 | 台州振荣阀门有限公司 | Hard sealing connection flexible pipe |
| CN115654247A (en) * | 2022-09-22 | 2023-01-31 | 江苏金烨钛业有限公司 | High leakproofness has and inhales buffer who shakes function |
| CN119163834A (en) * | 2024-11-19 | 2024-12-20 | 山东华茂通风设备有限公司 | A pipe wall noise reduction and reinforcement structure |
| CN119712992A (en) * | 2025-02-25 | 2025-03-28 | 铁氟龙防腐科技(江苏)有限公司 | Steel lining tetrafluoro expansion joint capable of adjusting stability |
-
2021
- 2021-06-21 CN CN202121372777.2U patent/CN215635683U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467391A (en) * | 2022-02-22 | 2022-05-13 | 山西农业大学经济作物研究所 | Special rotary seeder for polygala tenuifolia |
| CN114838219A (en) * | 2022-06-06 | 2022-08-02 | 台州振荣阀门有限公司 | Hard sealing connection flexible pipe |
| CN115654247A (en) * | 2022-09-22 | 2023-01-31 | 江苏金烨钛业有限公司 | High leakproofness has and inhales buffer who shakes function |
| CN115654247B (en) * | 2022-09-22 | 2023-10-31 | 江苏金烨钛业有限公司 | High leakproofness has buffer of shock-absorbing function |
| CN119163834A (en) * | 2024-11-19 | 2024-12-20 | 山东华茂通风设备有限公司 | A pipe wall noise reduction and reinforcement structure |
| CN119712992A (en) * | 2025-02-25 | 2025-03-28 | 铁氟龙防腐科技(江苏)有限公司 | Steel lining tetrafluoro expansion joint capable of adjusting stability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |