Telescopic HDPE pipe for viaduct

Abstract

The telescopic HDPE pipe for the viaduct comprises an HDPE inner pipe, an HDPE outer pipe is installed on the outer side of one end of the outer ring face of the HDPE inner pipe in a sliding and sleeved mode in the horizontal direction, and a sealing ring matched and attached to the end, close to the HDPE inner pipe, of the inner ring face of the HDPE outer pipe is fixed to the end, close to the HDPE inner pipe, of the inner ring face of the HDPE outer pipe. The inner ring face of the sealing ring and the corresponding position on the outer ring face of the HDPE inner pipe are in a matched and attached state, a plurality of limiting plates are fixed to the inner ring face of the HDPE outer pipe in the circumferential direction at intervals, and matched limiting blocks are fixed to the end, close to the HDPE outer pipe, of the outer ring face of the HDPE inner pipe and located between the adjacent limiting plates. When installation environments with different lengths need to be adapted, the length between the HDPE inner pipe and the HDPE outer pipe can be conveniently adjusted in a telescopic mode, so that the application range of the HDPE inner pipe and the application range of the HDPE outer pipe are guaranteed, and installation and use of the HDPE inner pipe and the HDPE outer pipe are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pipe materials, specifically a retractable HDPE pipe for elevated bridges. Background Technology

[0002] An elevated bridge is a type of bridge, also known as an overpass. Elevated bridges typically consist of piers, a bridge deck, and bridge components. The piers are relatively high and are generally made of reinforced concrete frames or single-column or double-column reinforced concrete piers. With the continuous development of urban transportation, elevated bridges play an important role in alleviating traffic congestion as a crucial transportation facility.

[0003] During the construction and use of viaducts, various pipe materials are required, such as drainage pipes and cable protection pipes. HDPE pipes, or high-density polyethylene pipes, are widely used in viaduct projects due to their advantages such as strong corrosion resistance, wear resistance, and good flexibility.

[0004] However, existing HDPE pipes are mostly of uniform length, which makes it difficult to adjust the length of the HDPE pipes. When different lengths are required for installation environments, the inability to easily adjust the length of the HDPE pipes will affect their applicability and make them unsuitable for installation and use.

[0005] Therefore, we propose a stretchable HDPE pipe for viaducts. Utility Model Content

[0006] The purpose of this invention is to provide a retractable HDPE pipe for elevated bridges to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A retractable HDPE pipe for elevated bridges includes an HDPE inner tube. An HDPE outer tube is slidably fitted onto the outer side of one end of the outer ring of the HDPE inner tube in a horizontal direction. A matching sealing ring is fixed to the inner ring of the HDPE outer tube near the end of the HDPE inner tube. The inner ring of the sealing ring and the corresponding position on the outer ring of the HDPE inner tube are in a matching fit. Several limiting plates are fixed at intervals along the circumferential direction on the inner ring of the HDPE outer tube. Matching limiting blocks are fixed between adjacent limiting plates on the outer ring of the HDPE inner tube near the end of the HDPE outer tube.

[0009] As a further embodiment of this utility model: the side of the limiting block closest to the HDPE inner tube is in a matching and fitting state with the corresponding position on the outer ring surface of the HDPE inner tube, and a locking block is fixed in the middle of the two end surfaces of the limiting block.

[0010] By adopting the above technical solution: the setting of the HDPE inner tube can fix and limit the position of the limiting block.

[0011] As a further improvement of this utility model: all the limiting plates are in a horizontal state, and the side surface of the limiting plate near the HDPE outer tube is in a matching and fitting state with the corresponding position on the inner ring surface of the HDPE outer tube.

[0012] By adopting the above technical solution: the setting of HDPE outer tube can fix and limit the position of the limiting plate.

[0013] As a further improvement of this utility model: the middle of both sides of the limiting plate is provided with matching slots for the corresponding card blocks, and the card blocks are slidably connected to the corresponding slots on the corresponding limiting plates in the horizontal direction.

[0014] By adopting the above technical solution, the setting of the card block and card slot helps to limit the movement between the limit block and the limit plate.

[0015] As a further embodiment of this utility model: a first mounting ring is fixedly installed at the end of the HDPE inner tube away from the HDPE outer tube, and a matching and fitting first sealing gasket is fixed on the side surface of the first mounting ring away from the HDPE inner tube.

[0016] By adopting the above technical solution, the setting of the first mounting ring facilitates the installation of the HDPE inner tube.

[0017] As a further improvement of this utility model: the center of the periphery of the first mounting ring is threaded with a first bolt in the horizontal direction, and the first bolt is horizontal and penetrates the two sides of the corresponding position on the first sealing gasket.

[0018] By adopting the above technical solution, the setting of the first bolt facilitates the installation and positioning of the first mounting ring.

[0019] As a further improvement of this utility model: a second mounting ring is fixedly installed at the end of the HDPE outer tube away from the HDPE inner tube, and a matching and fitting second sealing gasket is fixed on the side surface of the second mounting ring away from the HDPE outer tube.

[0020] By adopting the above technical solution, the setting of the second mounting ring facilitates the installation of HDPE outer pipes.

[0021] As a further embodiment of this utility model: the middle of the periphery of the second mounting ring is threaded with a second bolt in the horizontal direction, and the second bolt is in a horizontal state and penetrates the two sides of the corresponding position on the second sealing gasket.

[0022] By adopting the above technical solution, the setting of the second bolt facilitates the installation and positioning of the second mounting ring.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] In this invention, the HDPE outer tube can be moved horizontally along the outside of the HDPE inner tube during use, which helps to adjust the extension and retraction between the HDPE inner tube and the HDPE outer tube. When different length installation environments are required, the length between the HDPE inner tube and the HDPE outer tube can be easily adjusted to ensure the applicability of the HDPE inner tube and the HDPE outer tube, which is helpful for the installation and use of the HDPE inner tube and the HDPE outer tube.

[0025] 2. In this utility model, when the HDPE outer tube moves, it can drive the limiting plate to move between the limiting blocks. The limiting block and the limiting plate can be limited by the locking block and the locking groove. The limiting block and the limiting plate can limit the HDPE inner tube and the HDPE outer tube, so as to facilitate the stable movement of the HDPE outer tube. When the HDPE outer tube moves, it can drive the sealing ring to move along the outside of the HDPE inner tube. The sealing ring can seal the HDPE inner tube and the HDPE outer tube. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the HDPE outer tube structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the limiting block structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the sealing ring structure of this utility model.

[0030] In the diagram: 1. HDPE inner tube; 2. HDPE outer tube; 3. First mounting ring; 4. Second mounting ring; 5. First bolt; 6. Second bolt; 7. First sealing gasket; 8. Second sealing gasket; 9. Limiting plate; 10. Limiting block; 11. Sealing ring; 12. Locking block; 13. Locking groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 In this embodiment of the present invention, a retractable HDPE pipe for elevated bridges includes an HDPE inner pipe 1. An HDPE outer pipe 2 is slidably fitted onto the outer side of one end of the outer ring of the HDPE inner pipe 1 in a horizontal direction. A matching sealing ring 11 is fixed to the inner ring of the HDPE outer pipe 2 near the end of the HDPE inner pipe 1. The inner ring of the sealing ring 11 and the corresponding position on the outer ring of the HDPE inner pipe 1 are in a matching fit. A plurality of limiting plates 9 are fixed at intervals along the circumferential direction on the inner ring of the HDPE outer pipe 2. One end of the pipe 2 is fixed with a matching limiting block 10 between adjacent limiting plates 9. During use, the HDPE outer pipe 2 can be moved horizontally along the outside of the HDPE inner pipe 1, which helps to adjust the extension and retraction between the HDPE inner pipe 1 and the HDPE outer pipe 2. When different length installation environments are required, the length between the HDPE inner pipe 1 and the HDPE outer pipe 2 can be easily adjusted to ensure the applicability of the HDPE inner pipe 1 and the HDPE outer pipe 2, which helps to install and use the HDPE inner pipe 1 and the HDPE outer pipe 2.

[0033] Among them, the side of the limiting block 10 near the HDPE inner tube 1 is in a matching fit with the corresponding position on the outer ring surface of the HDPE inner tube 1. The middle of both ends of the limiting block 10 is fixed with a locking block 12, which can fix and limit the limiting block 10. The limiting plate 9 is in a horizontal state. The side of the limiting plate 9 near the HDPE outer tube 2 is in a matching fit with the corresponding position on the inner ring surface of the HDPE outer tube 2, which can fix and limit the limiting plate 9. The middle of both sides of the limiting plate 9 is provided with a matching slot 13 corresponding to the locking block 12. The locking block 12 is slidably connected to the corresponding slot 13 on the corresponding limiting plate 9 in the horizontal direction. The locking block 12 and the slot 13 help to limit the relationship between the limiting block 10 and the limiting plate 9.

[0034] A first mounting ring 3 is fixedly installed at the end of the HDPE inner tube 1 away from the HDPE outer tube 2. A matching first sealing gasket 7 is fixed on the side surface of the first mounting ring 3 away from the HDPE inner tube 1. The first mounting ring 3 facilitates the installation of the HDPE inner tube 1. A first bolt 5 is threaded horizontally into the center of the perimeter of the edge portion of the first mounting ring 3. The first bolt 5 is horizontal and penetrates the corresponding two sides of the first sealing gasket 7. The first bolt 5 facilitates the installation and positioning of the first mounting ring 3.

[0035] A second mounting ring 4 is fixedly installed at the end of the HDPE outer tube 2 away from the HDPE inner tube 1. A matching second sealing gasket 8 is fixed on the side surface of the second mounting ring 4 away from the HDPE outer tube 2. The second mounting ring 4 facilitates the installation of the HDPE outer tube 2. Second bolts 6 are threaded horizontally into the center of the perimeter of the edge portion of the second mounting ring 4. The second bolts 6 are all horizontal and penetrate the corresponding two sides of the second sealing gasket 8. The second bolts 6 facilitate the installation and positioning of the second mounting ring 4.

[0036] The working principle of this utility model is as follows: During use, the side of the first sealing gasket 7 away from the first mounting ring 3 and the side of the second sealing gasket 8 away from the second mounting ring 4 are respectively aligned with the positions to be installed on the external viaduct. The first mounting ring 3 is installed with the corresponding position on the external viaduct by the first bolt 5. The first sealing gasket 7 can seal the corresponding position on the external viaduct. The first bolt 5 can limit the first mounting ring 3. The first mounting ring 3 can support and limit the HDPE inner tube 1 and the various components assembled on the HDPE inner tube 1, which helps to stably use the HDPE inner tube 1 and the various components assembled on the HDPE inner tube 1.

[0037] When the length between HDPE inner tube 1 and HDPE outer tube 2 needs to be adjusted according to the installation environment on the external viaduct, HDPE outer tube 2 is moved horizontally along the outside of HDPE inner tube 1. When HDPE outer tube 2 moves, it can drive the limiting plate 9 to move between the limiting blocks 10. The limiting block 12 and the limiting groove 13 can limit the distance between the limiting block 10 and the limiting plate 9. The limiting block 10 and the limiting plate 9 can limit the distance between HDPE inner tube 1 and HDPE outer tube 2, so as to facilitate the stable movement of HDPE outer tube 2. When HDPE outer tube 2 moves, it can drive the sealing ring 11 to move along the outside of HDPE inner tube 1. The sealing ring 11 can seal the distance between HDPE inner tube 1 and HDPE outer tube 2. By moving HDPE outer tube 2 along the outside of HDPE inner tube 1, the length between HDPE inner tube 1 and HDPE outer tube 2 can be adjusted.

[0038] After adjusting the length between the HDPE inner tube 1 and the HDPE outer tube 2 to match the required installation position on the external viaduct, the second mounting ring 4 and the second sealing gasket 8 are moved to correspond to the required installation position on the viaduct. The second mounting ring 4 is then installed to the corresponding position on the external viaduct using the second bolt 6. The second sealing gasket 8 seals the corresponding position on the external viaduct, and the second bolt 6 fixes and limits the second mounting ring 4. The second mounting ring 4 supports and limits the HDPE outer tube 2 and the various components assembled on it, facilitating stable use of the HDPE outer tube 2 and its assembled components.

[0039] During use, the HDPE outer tube 2 can be moved horizontally along the outside of the HDPE inner tube 1, which helps to adjust the length of the HDPE inner tube 1 and HDPE outer tube 2. When different lengths are required for installation environments, the length of the HDPE inner tube 1 and HDPE outer tube 2 can be easily adjusted to ensure the applicability of the HDPE inner tube 1 and HDPE outer tube 2, which is helpful for the installation and use of the HDPE inner tube 1 and HDPE outer tube 2.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A retractable HDPE pipe for elevated bridges, comprising an HDPE inner pipe (1), characterized in that: HDPE outer tube (2) is slidably installed on the outer side of one end of the outer ring surface of HDPE inner tube (1) in the horizontal direction. A matching sealing ring (11) is fixed on the inner ring surface of HDPE outer tube (2) near the end of HDPE inner tube (1). The inner ring surface of the sealing ring (11) and the corresponding position on the outer ring surface of HDPE inner tube (1) are in a matching fit. Several limiting plates (9) are fixed at intervals along the circumferential direction on the inner ring surface of HDPE outer tube (2). A matching limiting block (10) is fixed between adjacent limiting plates (9) on the outer ring surface of HDPE inner tube (1) near HDPE outer tube (2).

2. The expandable HDPE pipe for elevated bridges according to claim 1, characterized in that: The limiting block (10) is in a matching fit with the corresponding position on the outer ring surface of the HDPE inner tube (1) on the side close to the HDPE inner tube (1). The limiting block (10) has a locking block (12) fixed in the middle of the two ends of the surface.

3. The expandable HDPE pipe for elevated bridges according to claim 2, characterized in that: The limiting plates (9) are all in a horizontal state, and the side surface of the limiting plates (9) near the HDPE outer tube (2) is in a matching and fitting state with the corresponding position on the inner ring surface of the HDPE outer tube (2).

4. The expandable HDPE pipe for elevated bridges according to claim 3, characterized in that: The middle of both sides of the limiting plate (9) is provided with matching slots (13) corresponding to the card blocks (12), and the card blocks (12) are slidably connected to the corresponding slots (13) on the corresponding limiting plate (9) in the horizontal direction.

5. The expandable HDPE pipe for elevated bridges according to claim 4, characterized in that: The HDPE inner tube (1) is fixedly installed with a first mounting ring (3) at one end away from the HDPE outer tube (2), and a matching first sealing gasket (7) is fixed on the side surface of the first mounting ring (3) away from the HDPE inner tube (1).

6. The expandable HDPE pipe for elevated bridges according to claim 5, characterized in that: The first mounting ring (3) has a first bolt (5) threaded in the middle of the periphery of the first mounting ring (3) along the horizontal direction. The first bolt (5) is horizontal and penetrates the two sides of the corresponding position on the first sealing gasket (7).

7. The expandable HDPE pipe for elevated bridges according to claim 6, characterized in that: A second mounting ring (4) is fixedly installed at one end of the HDPE outer tube (2) away from the HDPE inner tube (1), and a matching second sealing gasket (8) is fixed on the side surface of the second mounting ring (4) away from the HDPE outer tube (2).

8. The expandable HDPE pipe for elevated bridges according to claim 7, characterized in that: The second mounting ring (4) has a second bolt (6) threaded in the middle of the periphery of the second mounting ring (4) in the horizontal direction. The second bolt (6) is horizontal and penetrates the two sides of the corresponding position on the second sealing gasket (8).

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