CN219102353U - Expansion joint with anti-fatigue function for engine - Google Patents
Expansion joint with anti-fatigue function for engine Download PDFInfo
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- CN219102353U CN219102353U CN202222574139.XU CN202222574139U CN219102353U CN 219102353 U CN219102353 U CN 219102353U CN 202222574139 U CN202222574139 U CN 202222574139U CN 219102353 U CN219102353 U CN 219102353U
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Abstract
The utility model discloses an expansion joint with an anti-fatigue function for an engine, which comprises a pipe body, wherein two ends of the outer surface of the pipe body are fixedly connected with expansion joints, and one side of the outer surface of each expansion joint is fixedly connected with a protective sleeve. The expansion joint with the anti-fatigue function for the engine is characterized in that the expansion joint, the protective sleeve, the screw rod, the stud and the spring are used for preventing deformation of the two sections of expansion joints from accumulating in one direction in all wavelengths, the deformation can be separated into two wave bands, the problem that local stress of the expansion joint is overlarge is prevented, the radial deformation of two end parts of the expansion joint is reduced by the protective sleeve, fatigue failure of the two end parts of the expansion joint is effectively prevented by the protective sleeve, the stud is rotated, the screw rod drives two sides of the expansion joint to move for extension, the spring plays an axial buffering role, transitional compression of the expansion joint is avoided, the pipeline compensation role is played, the expansion joint damage caused by overlarge tension transient impact is avoided, and the tensile property and durability in use are improved.
Description
Technical Field
The utility model relates to the technical field of expansion joints, in particular to an expansion joint with an anti-fatigue function for an engine.
Background
With the vigorous development of the current vehicle industry, expansion joints are widely applied to vehicle engines, and in actual working, the expansion joints often have the problem of damage and failure of the expansion joints caused by interference abrasion of an internal guide liner tube and a corrugated tube, so that sealing failure is caused.
Through retrieval, in Chinese published patent application number CN202121339762.6, an expansion joint assembly and an engine with the expansion joint assembly are disclosed, a guide liner tube is embedded into an expansion joint flange through a flange ring groove, so that the structure is compact, the end face of the guide liner tube is turned outwards to form a turned edge, and a sealing effect is achieved between the expansion joint flange and a connecting pipeline flange; the above patent strengthens the sealability of the expansion joint, but since the fluid flow rate in the pipe body is relatively fast, the expansion joint is impacted, thus the radial and axial directions of the corrugated pipe are more likely to be deformed, the fatigue resistance is poor, and the fracture phenomenon is caused, so that the expansion joint with the fatigue resistance function for the engine needs to be designed to solve the above problems.
Disclosure of Invention
The utility model mainly aims to provide an expansion joint with an anti-fatigue function for an engine, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the expansion joint with the anti-fatigue function for the engine comprises a pipe body, wherein two ends of the outer surface of the pipe body are fixedly connected with the expansion joint, and one side of the outer surface of the expansion joint is fixedly connected with a protective sleeve; the outer surface fixedly connected with engaging lug of lag, the inside threaded connection of engaging lug has the screw rod, one side threaded connection that the surface of screw rod is close to the engaging lug has the nut, one side threaded connection of screw rod surface has the double-screw bolt, the middle part cover of screw rod surface is equipped with the spring, the medial surface fixedly connected with body strengthens the pipe, the inside edge fixedly connected with rubber layer of strengthening the pipe.
In order to achieve the effect of reinforcing the structural strength, as the expansion joint with the anti-fatigue function for the engine, the inner side surface of the rubber layer is fixedly connected with the glass fiber layer.
In order to achieve the effect of heat preservation, as the expansion joint with the anti-fatigue function for the engine, the inner side surface of the glass fiber layer is fixedly connected with the heat preservation layer.
In order to achieve the effect of enhancing adaptability, as the expansion joint with the anti-fatigue function for the engine, the inner side surface of the heat preservation layer is fixedly connected with the hot melt adhesive layer.
In order to achieve the anti-corrosion effect, as the expansion joint with the anti-fatigue function for the engine, the inner side surface of the hot melt adhesive layer is fixedly connected with an anti-corrosion layer.
In order to achieve the effect of convenient connection, as the expansion joint with the anti-fatigue function for the engine, one end of the pipe body is fixedly connected with a connecting pipe, and one side of the inner side wall of the connecting pipe is provided with a thread groove.
In order to achieve the effect of enhancing the connection tightness, the expansion joint with the anti-fatigue function for the engine is characterized in that a groove is formed in one side of the inner side wall of the connecting pipe, and a sealing ring is fixedly connected in the groove.
In order to achieve the effect of being convenient for connecting external parts, as the expansion joint with the anti-fatigue function for the engine, the other end of the pipe body is fixedly connected with a connecting flange.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, through the expansion joint, the protective sleeve, the screw rod, the stud and the spring, deformation of the expansion joint in all wavelengths is prevented from accumulating in one direction, the deformation can be separated into two wave bands, the problem that local stress of the expansion joint is overlarge is prevented, the toughness of the expansion joint is improved, the fatigue resistance is improved, the radial deformation of two end parts of the expansion joint is reduced by the protective sleeve, fatigue failure of the two end parts of the expansion joint is effectively prevented, the stud is rotated, the screw rod drives the two sides of the expansion joint to move for extension, the spring plays an axial buffering role, the expansion joint is prevented from transiting and compressing, the pipeline compensation role is played, the expansion joint damage caused by the fact that the tension transient impact is overlarge is avoided, and the tensile resistance and the durability are improved.
2. According to the utility model, through the arrangement of the glass fiber layer, the heat preservation layer, the anti-corrosion layer and the sealing ring, the glass fiber layer has good insulativity, strong heat resistance and good corrosion resistance, the protection capability on the inner side of the pipe body can be enhanced, the pipe body has higher extensibility, the heat preservation layer can preserve heat of the reinforced pipe, the anti-freezing effect is improved, the service life can be prolonged, the anti-corrosion layer can prevent the inner wall of the reinforced pipe from being rotten, the pipe can be protected, the sealing ring can strengthen the sealing property of the connection of the connecting pipe and the external pipe element, and the sealing effect is enhanced.
Drawings
FIG. 1 is a schematic diagram showing a front view of an expansion joint with anti-fatigue function for an engine according to embodiment 1 of the present utility model;
FIG. 2 is a schematic cross-sectional plan view of an expansion joint with anti-fatigue function for an engine according to embodiment 1 of the present utility model;
FIG. 3 is a schematic view of an explosion structure of a screw of an expansion joint with anti-fatigue function for an engine according to embodiment 1 of the present utility model;
FIG. 4 is a schematic cross-sectional view of a reinforcing pipe of an expansion joint with anti-fatigue function for an engine according to embodiment 1 of the present utility model;
fig. 5 is a schematic structural diagram of a connecting flange according to embodiment 2 of the present utility model.
In the figure: 1. a tube body; 2. an expansion joint; 3. a protective sleeve; 4. a connecting lug; 5. a screw; 6. a nut; 7. a stud; 8. a spring; 9. a reinforcing tube; 10. a rubber layer; 11. a glass fiber layer; 12. a heat preservation layer; 13. a hot melt adhesive layer; 14. an anti-corrosion layer; 15. a connecting pipe; 16. a thread groove; 17. a groove; 18. a seal ring; 19. and (5) connecting the flanges.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-4, an expansion joint with an anti-fatigue function for an engine comprises a pipe body 1, wherein two ends of the outer surface of the pipe body 1 are fixedly connected with expansion joints 2, and one side of the outer surface of the expansion joint 2 is fixedly connected with a protective sleeve 3;
in this embodiment, the outer surface fixedly connected with engaging lug 4 of lag 3, the inside threaded connection of engaging lug 4 has screw rod 5, and one side threaded connection that the surface of screw rod 5 is close to engaging lug 4 has nut 6, and one side threaded connection of screw rod 5 surface has double-screw bolt 7, and the middle part cover of screw rod 5 surface is equipped with spring 8, and the medial surface fixedly connected with body 1 strengthens pipe 9, and the inside edge fixedly connected with rubber layer 10 of pipe 9.
During specific use, through the setting of expansion joint 2, lag 3, screw rod 5, double-screw bolt 7, spring 8 and rubber layer 10, the both sides fixedly connected with two sections expansion joint 2 of body 1 surface, avoid the deformation accumulation on all wave lengths of expansion joint 2 to a direction, can divide the deformation to two wave bands, prevent the problem that expansion joint 2 local atress is too big, the toughness of expansion joint 2 has been improved, the antifatigue ability has been improved, increase lag 3 at expansion joint 2 both ends, reducible expansion joint 2 both ends position radial deformation, effectively prevent expansion joint 2 both ends position fatigue failure, improve life, the threaded connection is in the inside of engaging lug 4 with two screw rods 5, carry out spacing fixed through two nuts 6, the installation is dismantled conveniently, the middle part threaded connection of two screw rod 5 surface has stud 7, through rotating stud 7, can drive expansion joint 2's both sides and remove and extend, spring 8 plays the axial buffer action, and under spring 8's elastic restoring force, avoid expansion joint 2 transitional compression, play the pipeline compensation effect, the instantaneous expansion is stretched and is strikeed and is damaged greatly to arouse expansion joint 2, tensile strength is improved, durability and durability is improved, the durability is improved for the pipe has 10, the durability is improved, the pipe has the durability is used for the pipe is improved, the inner wall is 10.
In this embodiment, the glass fiber layer 11 is fixedly connected to the inner side surface of the rubber layer 10.
When the pipe body 1 is particularly used, through the arrangement of the glass fiber layer 11, the glass fiber layer 11 has good insulativity, strong heat resistance and good corrosion resistance, and can enlarge the protection capability on the inner side of the pipe body 1, so that the pipe body 1 has higher extensibility and good stability, and the use strength is improved.
In this embodiment, the heat insulation layer 12 is fixedly connected to the inner side surface of the glass fiber layer 11.
When the heat preservation device is specifically used, through the arrangement of the heat preservation layer 12, the heat preservation layer 12 can preserve heat of the reinforced pipe 9, the anti-freezing effect is improved, and the service life can be prolonged.
In this embodiment, the inner side surface of the heat insulation layer 12 is fixedly connected with a hot melt adhesive layer 13.
When the hot melt adhesive is specifically used, the physical state of the hot melt adhesive material is changed along with the change of temperature in a certain temperature range through the arrangement of the hot melt adhesive layer 13, so that the hot melt adhesive material is suitable for the change of the temperature inside the reinforced pipe 9, and the adaptability in use is improved.
In this embodiment, the inner side surface of the hot melt adhesive layer 13 is fixedly connected with an anti-corrosion layer 14.
When the pipe is particularly used, through the arrangement of the anti-corrosion layer 14, the anti-corrosion layer 14 is made of niobium-tantalum alloy, and the niobium-tantalum alloy has extremely high corrosion resistance, so that the inner wall of the reinforced pipe 9 can be prevented from being rotten, and the pipe can be protected.
In this embodiment, one end of the tube body 1 is fixedly connected with a connecting tube 15, and one side of the inner side wall of the connecting tube 15 is provided with a thread groove 16.
When the pipeline connecting device is particularly used, the connecting pipe 15 is convenient to connect with an external pipeline element through the arrangement of the thread groove 16, so that the pipeline 1 is connected and fixed, and the pipeline installation requirement is met.
In this embodiment, a groove 17 is formed on one side of the inner side wall of the connecting pipe 15, and a sealing ring 18 is fixedly connected to the inside of the groove 17.
When the sealing device is particularly used, the sealing ring 18 is fixed in the groove 17 through the arrangement of the sealing ring 18, the sealing performance of the connection of the connecting pipe 15 and the external pipeline element is enhanced, and the sealing effect is enhanced.
Working principle: the thread groove 16 is convenient for connecting the pipe 15 with external pipeline components, the sealing ring 18 strengthens the tightness of connection, the rubber layer 10 has flexibility and tensile property, the glass fiber layer 11 increases the protective capability to the inner side of the pipe body 1, the heat insulation layer 12 keeps the heat of the reinforced pipe 9, the anti-freezing effect is improved, the hot melt adhesive layer 13 adapts to the change of the internal temperature of the reinforced pipe 9, the anti-corrosion layer 14 can prevent the inner wall of the reinforced pipe 9 from rotting, the two sections of expansion joints 2 can divide the deformation to two wave bands, the problem that the expansion joints 2 are locally stressed too much is avoided, the protective sleeves 3 are added at the two ends of the expansion joints 2, the radial deformation of the two ends of the expansion joints 2 is reduced, the fatigue failure of the two ends of the expansion joints 2 is effectively prevented, the two screw rods 5 are in threaded connection with the inside the connecting lugs 4, the two nuts 6 limit the screw rods 5, the stud 7 is rotated, the screw rods 5 drive the two sides of the expansion joints 2 to move to extend, the spring 8 plays an axial buffering role, the expansion joints 2 are prevented from transitionally compressing under the elastic restoring force of the spring 8, the expansion joints 2 play a compensation role, the pipeline compensation role is avoided, the expansion joints are prevented from being stretched too much to cause the expansion joints to be damaged too fast, and the tensile performance is improved.
Example 2
As shown in fig. 5, the distinguishing features of this embodiment that distinguish embodiment 1 are: the other end of the pipe body 1 is fixedly connected with a connecting flange 19.
When the expansion joint is particularly used, through the arrangement of the connecting flange 19, the connecting flange 19 is convenient for connecting the expansion joint with an external equipment element, so that the extensibility of the pipe body 1 is increased, and the falling phenomenon during connection is prevented.
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 (8)
1. An expansion joint with anti-fatigue function for an engine, comprising a pipe body (1), characterized in that: the two ends of the outer surface of the pipe body (1) are fixedly connected with expansion joints (2), and one side of the outer surface of the expansion joints (2) is fixedly connected with a protective sleeve (3);
the outer surface fixedly connected with engaging lug (4) of lag (3), the inside threaded connection of engaging lug (4) has screw rod (5), one side threaded connection that the surface of screw rod (5) is close to engaging lug (4) has nut (6), one side threaded connection of screw rod (5) surface has double-screw bolt (7), the middle part cover of screw rod (5) surface is equipped with spring (8), the medial surface fixedly connected with reinforcing pipe (9) of body (1), reinforcing pipe (9) inside edge fixedly connected with rubber layer (10).
2. An expansion joint with anti-fatigue function for an engine according to claim 1, wherein: the inner side surface of the rubber layer (10) is fixedly connected with a glass fiber layer (11).
3. An expansion joint with anti-fatigue function for an engine according to claim 2, wherein: the inner side surface of the glass fiber layer (11) is fixedly connected with an insulation layer (12).
4. An expansion joint with anti-fatigue function for an engine according to claim 3, wherein: the inner side surface of the heat preservation layer (12) is fixedly connected with a hot melt adhesive layer (13).
5. An expansion joint with anti-fatigue function for an engine according to claim 4, wherein: the inner side surface of the hot melt adhesive layer (13) is fixedly connected with an anti-corrosion layer (14).
6. An expansion joint with anti-fatigue function for an engine according to claim 1, wherein: one end of the pipe body (1) is fixedly connected with a connecting pipe (15), and one side of the inner side wall of the connecting pipe (15) is provided with a thread groove (16).
7. An expansion joint with anti-fatigue function for an engine according to claim 6, wherein: a groove (17) is formed in one side of the inner side wall of the connecting pipe (15), and a sealing ring (18) is fixedly connected inside the groove (17).
8. An expansion joint with anti-fatigue function for an engine according to claim 1, wherein: the other end of the pipe body (1) is fixedly connected with a connecting flange (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574139.XU CN219102353U (en) | 2022-09-27 | 2022-09-27 | Expansion joint with anti-fatigue function for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574139.XU CN219102353U (en) | 2022-09-27 | 2022-09-27 | Expansion joint with anti-fatigue function for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219102353U true CN219102353U (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222574139.XU Active CN219102353U (en) | 2022-09-27 | 2022-09-27 | Expansion joint with anti-fatigue function for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219102353U (en) |
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2022
- 2022-09-27 CN CN202222574139.XU patent/CN219102353U/en active Active
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