Mounting structure and expansion joint thereof

Abstract

The utility model relates to the technical field of mechanical installation, and discloses an installation structure and an expansion joint thereof. The connecting structure comprises a first connecting part and a second connecting part, the first connecting part comprises a second end pipe arranged at the bottom of the first end pipe, one end of the first end pipe and one end of the second end pipe are each provided with a first clamping groove, and three sets of first threaded grooves and three sets of second threaded grooves are formed in each first clamping groove; a first limiting bolt is arranged in the second threaded groove and is spirally mounted in the first threaded groove; the second connecting part comprises three groups of first fixing plates fixedly mounted on the outer wall of the first end pipe and the outer wall of the second end pipe, and third threaded grooves are formed in the first fixing plates, so that the purpose of clamping and reinforcing the joints is achieved, the contact area of the joints is increased, the fixing effect of the joints is improved, and the fixing strength of the device is enhanced; the use stability of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical installation technology, specifically, it relates to an installation structure and its expansion joint. Background Technology

[0002] In industrial production, energy transmission, and building water supply and drainage systems, pipes and equipment often change length due to changes in the working environment (such as temperature rise or fall). If this thermal expansion and contraction is not properly handled, it may lead to stress concentration, leakage, or even rupture of the pipes, seriously affecting the safe operation of the system.

[0003] Utility model CN221017242U relates to an expansion joint installation structure for a sintering vibrating screen. The expansion joint is located in the space formed between the lower screen surface of an upper screen and the upper screen surface of a lower screen. A first pressure plate is fixed to the lower screen surface, and a second pressure plate is fixed to the upper screen surface. The upper end of the expansion joint is pressed tightly between the first pressure plate and the lower screen surface of the upper screen, and the lower end of the expansion joint is pressed tightly between the second pressure plate and the upper screen surface of the lower screen. An upper sealing gasket is embedded between the first pressure plate and the lower screen surface, and a lower sealing gasket is embedded between the second pressure plate and the upper screen surface. This utility model, by using the first pressure plate to press the upper end of the expansion joint onto the lower screen surface of the upper screen and the second pressure plate to press the lower end of the expansion joint onto the upper screen surface of the lower screen, changes the rigid connection structure of the expansion joint, effectively preventing the expansion joint connection from detaching due to severe vibration during screen operation, and reducing the equipment failure rate.

[0004] However, the aforementioned patents also have the following problems: the connection between the pipe and the corrugated pipe is usually made using a spiral connection. Although this connection method is simple and quick, the contact area at the connection is relatively small, which affects the stability and reliability of the connection to some extent. Due to the limited contact area, the stress and pressure borne by the connection may be more concentrated, and loosening may easily occur after long-term use, making the device inconvenient to use.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the aforementioned technical problem of poor connection effect at the joint, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An installation structure, comprising:

[0008] The first end tube is cylindrical.

[0009] The connecting structure includes a first connecting part and a second connecting part. The first connecting part includes a second end tube disposed at the bottom of the first end tube. A first snap-fit ​​groove is provided at one end of both the first end tube and the second end tube. The first snap-fit ​​groove has three sets of first threaded grooves and three sets of second threaded grooves inside. A first limiting bolt is provided inside the second threaded groove. The first limiting bolt is screwed into the inside of the first threaded groove. The second connecting part includes three sets of first fixing plates fixedly installed on the outer walls of the first end tube and the second end tube. The first fixing plates have a third threaded groove inside.

[0010] In a preferred embodiment of the present invention, the second connecting part further includes three sets of threaded tie rods disposed outside the first end tube. The threaded tie rods are helically installed inside the third threaded groove, and a hexagonal nut is helically installed on the outer wall of the threaded tie rod.

[0011] In a preferred embodiment of the present invention, the second connecting part further includes a corrugated outer tube disposed at the bottom of the first end tube. Three sets of second snap-fit ​​plates are fixedly installed at both ends of the corrugated outer tube. Three sets of snap-fit ​​blocks are disposed between the three sets of second snap-fit ​​plates. A fourth threaded groove is opened inside the snap-fit ​​block. The first limiting bolt is screwed into the inside of the fourth threaded groove.

[0012] In a preferred embodiment of this utility model, a set of connecting flanges is fixedly installed at the other end of both the first end pipe and the second end pipe, and sixteen sets of flange holes are opened at the bottom of the connecting flanges.

[0013] In a preferred embodiment of the present invention, a second snap-fit ​​groove is provided at one end of the first end tube and the second end tube, and a set of first limiting ring plates and a set of second limiting ring plates are fixedly installed on the inner wall of the second snap-fit ​​groove.

[0014] In a preferred embodiment of the present invention, two sets of first snap-fit ​​plates are provided on the outside of the first end tube, a second snap-fit ​​ring plate is fixedly installed on the outer wall of the first snap-fit ​​plate, a first snap-fit ​​ring plate is fixedly installed on the inner wall of the first snap-fit ​​plate, and a rubber gasket is fixedly installed on the top of the first snap-fit ​​plate.

[0015] An expansion joint includes the installation structure and expansion joint body described in any of the above, and a corrugated inner tube is fixedly installed on the inner wall of the corrugated outer tube.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. To achieve the purpose of reinforcing the connection by snapping, increasing the contact area of ​​the connection, improving the fixing effect of the connection, enhancing the fixing strength of the device, improving the stability of the device in use, and extending the service life of the device.

[0018] 2. To achieve the purpose of connecting and fixing the device to the external pipeline, reducing the gaps between the pipelines, improving the durability of the device, facilitating the installation of the device, and improving the convenience of using the device.

[0019] 3. To achieve the purpose of installing and fixing the expansion joint, and to protect the corrugated outer tube, thereby improving the service life and physical properties of the corrugated outer tube and optimizing the user experience of the device.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a front view of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model;

[0024] Figure 3 This is a top view of the present invention;

[0025] Figure 4 This is a schematic diagram of the first limiting ring plate structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the first snap-fit ​​plate structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the second end tube structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the corrugated outer tube structure of this utility model;

[0029] Figure 8 This is a schematic diagram of the threaded tie rod structure of this utility model.

[0030] In the diagram: 10. First end pipe; 11. Corrugated outer pipe; 12. Second end pipe; 13. Connecting flange; 14. Flange hole; 15. First snap-fit ​​groove; 16. First threaded groove; 17. Second threaded groove; 18. First limiting bolt; 19. First fixing plate; 20. Third threaded groove; 21. Threaded tie rod; 22. Hexagonal nut; 23. First limiting ring plate; 24. Second limiting ring plate; 25. Second snap-fit ​​groove; 26. First snap-fit ​​plate; 27. First snap-fit ​​ring plate; 28. Second snap-fit ​​ring plate; 29. ​​Rubber gasket; 30. Corrugated inner pipe; 31. Second snap-fit ​​plate; 32. Snap-fit ​​block; 33. Fourth threaded groove; 34. Expansion joint body. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0032] Example 1: An installation structure and its expansion joint, specifically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the system includes a first end tube 10, which is cylindrical; a connecting structure comprising a first connecting part and a second connecting part. The first connecting part includes a second end tube 12 disposed at the bottom of the first end tube 10. Both the first end tube 10 and the second end tube 12 have a first snap-fit ​​groove 15 at one end. The first snap-fit ​​groove 15 has three sets of first threaded grooves 16 and three sets of second threaded grooves 17 inside. A first limiting bolt 18 is disposed inside the second threaded groove 17 and is screwed into the first threaded groove 16. The second connecting part includes three sets of first fixing plates 19 fixedly installed on the outer walls of the first end tube 10 and the second end tube 12. The first fixing plates 19 have a third threaded groove 20 inside. The connecting structure strengthens the connection at the joint.

[0033] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 8 As shown, the second connecting part also includes three sets of threaded tie rods 21 disposed outside the first end tube 10. The threaded tie rods 21 are screwed into the inside of the third threaded groove 20, and hexagonal nuts 22 are screwed onto the outer wall of the threaded tie rods 21. The threaded tie rods 21 are screwed into the inside of the two sets of third threaded grooves 20 in sequence, and the hexagonal nuts 22 are screwed onto the outer wall of the threaded tie rods 21, so that the top of the hexagonal nuts 22 is in close contact with the bottom of a set of first fixing plates 19.

[0034] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 7As shown, the second connecting part also includes a corrugated outer tube 11 disposed at the bottom of the first end tube 10. Three sets of second snap-fit ​​plates 31 are fixedly installed at both ends of the corrugated outer tube 11. Three sets of snap-fit ​​blocks 32 are disposed between the three sets of second snap-fit ​​plates 31. The snap-fit ​​blocks 32 have a fourth threaded groove 33 inside. The first limiting bolts 18 are screwed into the inside of the fourth threaded groove 33. The corrugated outer tube 11 is placed between the first end tube 10 and the second end tube 12. The second snap-fit ​​plates 31 are snapped into the inside of the first snap-fit ​​groove 15. The six sets of first limiting bolts 18 are rotated, and the first limiting bolts 18 are screwed into the inside of the second threaded groove 17, the fourth threaded groove 33 and the first threaded groove 16 in sequence, thus limiting the corrugated outer tube 11 between the first end tube 10 and the second end tube 12.

[0035] Based on the above, the structure of the first end tube 10, corrugated outer tube 11, second end tube 12, first snap-fit ​​groove 15, first threaded groove 16, second threaded groove 17, first limit bolt 18, first fixing plate 19, third threaded groove 20, threaded tie rod 21, hexagonal nut 22, second snap-fit ​​plate 31, snap-fit ​​block 32, and fourth threaded groove 33 achieves the purpose of snap-fit ​​reinforcement at the connection, increases the contact area at the connection, improves the fixing effect at the connection, enhances the fixing strength of the device, improves the stability of the device in use, and extends the service life of the device.

[0036] Example 2: Based on Example 1, specifically as follows... Figure 2 and Figure 3 As shown, a set of connecting flanges 13 are fixedly installed at the other end of the first end pipe 10 and the second end pipe 12. Sixteen flange holes 14 are opened at the bottom of the connecting flanges 13. The device is connected to the external pipeline through the connecting flanges 13 and the flange holes 14.

[0037] Specifically, such as Figure 1 Figure 2 and Figure 4 As shown, a second snap-fit ​​groove 25 is provided at one end of the first end tube 10 and the second end tube 12. A set of first limiting ring plates 23 and a set of second limiting ring plates 24 are fixedly installed on the inner wall of the second snap-fit ​​groove 25.

[0038] Specifically, such as Figure 1 Figure 2 , Figure 4 and Figure 5As shown, two sets of first snap-fit ​​plates 26 are provided on the outside of the first end pipe 10. A second snap-fit ​​ring plate 28 is fixedly installed on the outer wall of the first snap-fit ​​plate 26, and a first snap-fit ​​ring plate 27 is fixedly installed on the inner wall of the first snap-fit ​​plate 26. A rubber gasket 29 is fixedly installed on the top of the first snap-fit ​​plate 26. The first snap-fit ​​plate 26 is snapped into the inside of the second snap-fit ​​groove 25. The first snap-fit ​​ring plate 27 and the second snap-fit ​​ring plate 28 are snapped into the inside of the second snap-fit ​​groove 25 by the first limiting ring plate 23 and the second limiting ring plate 24. The rubber gasket 29 protects the pipe connection and reduces the gap at the pipe connection.

[0039] Based on the above, the structure of the first end pipe 10, the second end pipe 12, the connecting flange 13, the flange hole 14, the first limiting ring plate 23, the second limiting ring plate 24, the second snap-fit ​​groove 25, the first snap-fit ​​plate 26, the first snap-fit ​​ring plate 27, the second snap-fit ​​ring plate 28, and the rubber gasket 29 achieves the purpose of connecting and fixing the device to the external pipeline, reducing the gaps between the pipelines, improving the durability of the device, facilitating the installation of the device, and improving the convenience of using the device.

[0040] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1 and Figure 3 As shown, an expansion joint includes the mounting structure described in any of the above descriptions and an expansion joint body 34. A corrugated inner tube 30 is fixedly installed on the inner wall of the corrugated outer tube 11. The corrugated inner tube 30 protects the inner wall of the corrugated outer tube 11.

[0041] In summary, the structure of the corrugated outer tube 11, the corrugated inner tube 30, and the expansion joint body 34 achieves the purpose of installing and fixing the expansion joint, protecting the corrugated outer tube 11, improving the service life of the corrugated outer tube 11, enhancing the physical properties of the corrugated outer tube 11, and optimizing the user experience of the device.

[0042] Working principle: The first end tube 10 and the second end tube 12 are connected by a connecting structure, which includes a first connecting part and a second connecting part. The first connecting part achieves the initial connection between the first end tube 10 and the second end tube 12 through the cooperation of the first snap-fit ​​groove 15, the first threaded groove 16, the second threaded groove 17 and the first limiting bolt 18. The second connecting part further strengthens the connection between the first end tube 10 and the second end tube 12 through the cooperation of the first fixing plate 19, the third threaded groove 20, the threaded tie rod 21 and the hexagonal nut 22. (The corrugated outer tube 1...) 1. The corrugated outer tube 11 is snapped into the first snap-fit ​​groove 15 of the first end tube 10 and the second end tube 12 by the second snap-fit ​​plates 31 at both ends. By rotating the first limiting bolt 18, it is screwed into the second threaded groove 17, the fourth threaded groove 33 and the first threaded groove 16 in sequence, thereby realizing the limiting of the corrugated outer tube 11 between the first end tube 10 and the second end tube 12. A set of connecting flanges 13 are fixedly installed at the other end of the first end tube 10 and the second end tube 12. Through the flange hole 14 at the bottom of the connecting flange 13, this installation structure can be connected to an external pipeline. One end of the pipe 10 and the second end of the pipe 12 are provided with a second snap-fit ​​groove 25, and a first limiting ring plate 23 and a second limiting ring plate 24 are provided inside. The first snap-fit ​​plate 26 is snapped into the inside of the second snap-fit ​​groove 25. The first snap-fit ​​ring plate 27 and the second snap-fit ​​ring plate 28 are snapped into the inside of the second snap-fit ​​groove 25 by the first limiting ring plate 23 and the second limiting ring plate 24. The pipe connection is protected by a rubber gasket 29 to reduce the gap at the pipe connection. The expansion joint body 34 includes a corrugated outer pipe 11 and a corrugated inner pipe 30. The corrugated inner pipe 30 is fixedly installed in... The inner wall of the corrugated outer pipe 11 is protected. When the pipeline system expands and contracts due to temperature changes, the corrugated outer pipe 11 and the corrugated inner pipe 30 can undergo elastic deformation to absorb these deformations. This elastic deformation can reduce the stress on the pipeline or equipment and avoid strength failure, instability failure and pull-out failure. In addition to thermal expansion and contraction, the pipeline system may also be displaced due to other external factors (such as vibration, impact, etc.). The elastic deformation of the corrugated outer pipe 11 and the corrugated inner pipe can also absorb these displacements to ensure the safety and normal operation of the pipeline system.

[0043] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An installation structure, characterized in that, include: The first end tube (10) is cylindrical; The connection structure includes a first connection part and a second connection part. The first connection part includes a second end tube (12) disposed at the bottom of the first end tube (10). A first snap-fit ​​groove (15) is provided at one end of both the first end tube (10) and the second end tube (12). Three sets of first threaded grooves (16) and three sets of second threaded grooves (17) are provided inside the first threaded grooves (17). A first limiting bolt (18) is provided inside the second threaded grooves (17). The first limiting bolt (18) is screwed into the inside of the first threaded grooves (16). The second connection part includes three sets of first fixing plates (19) fixedly installed on the outer walls of the first end tube (10) and the second end tube (12). A third threaded groove (20) is provided inside the first fixing plate (19).

2. The installation structure according to claim 1, characterized in that, The second connecting part also includes three sets of threaded tie rods (21) disposed outside the first end tube (10). The threaded tie rods (21) are screwed inside the third threaded groove (20), and a hexagonal nut (22) is screwed on the outer wall of the threaded tie rods (21).

3. The installation structure according to claim 1, characterized in that, The second connecting part also includes a corrugated outer tube (11) disposed at the bottom of the first end tube (10). Three sets of second snap-fit ​​plates (31) are fixedly installed at both ends of the corrugated outer tube (11). Three sets of snap-fit ​​blocks (32) are disposed between the three sets of second snap-fit ​​plates (31). A fourth threaded groove (33) is opened inside the snap-fit ​​block (32). The first limiting bolt (18) is screwed into the inside of the fourth threaded groove (33).

4. The installation structure according to claim 1, characterized in that, A set of connecting flanges (13) are fixedly installed at the other end of the first end pipe (10) and the second end pipe (12), and sixteen sets of flange holes (14) are opened at the bottom of the connecting flanges (13).

5. The installation structure according to claim 1, characterized in that, A second snap-fit ​​groove (25) is provided at one end of the first end tube (10) and the second end tube (12). A set of first limiting ring plates (23) and a set of second limiting ring plates (24) are fixedly installed on the inner wall of the second snap-fit ​​groove (25).

6. The installation structure according to claim 1, characterized in that, Two sets of first snap-fit ​​plates (26) are provided on the outside of the first end tube (10). A second snap-fit ​​ring plate (28) is fixedly installed on the outer wall of the first snap-fit ​​plate (26). A first snap-fit ​​ring plate (27) is fixedly installed on the inner wall of the first snap-fit ​​plate (26). A rubber gasket (29) is fixedly installed on the top of the first snap-fit ​​plate (26).

7. An expansion joint, characterized in that, The installation structure and expansion joint body (34) according to any one of claims 1-6 are included, and a corrugated inner tube (30) is fixedly installed on the inner wall of the corrugated outer tube (11).

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