Concrete pipe with PE lining

Abstract

The utility model discloses a concrete pipe with a PE (Poly Ethylene) lining, which comprises a concrete pipe fitting, the concrete pipe fitting consists of a concrete pipe and a PE lining, the PE lining is arranged inside the concrete pipe, the concrete pipe is provided with a clamping groove, the PE lining is provided with a clamping strip, and the clamping strip is clamped inside the clamping groove; the PE lining is arranged, so that when the concrete pipe is used for drainage of urban rainwater, sewage or farmland drainage and irrigation, the service life of the concrete pipe is shortened due to the fact that substances conveyed in the concrete pipe have corrosivity. The inner wall of the prestressed concrete pipe is compounded with the PE pipe, so that the anti-corrosion function can be added, and corrosive liquid can be conveyed.

Description

Technical Field

[0001] The utility model relates to a concrete pipe structure technology, in particular to a concrete pipe with a PE lining. Background Art

[0002] Concrete pipes are pipes made of concrete or reinforced concrete and are used to transport fluids such as water, oil, and gas. They can be divided into four types: plain concrete pipes, ordinary reinforced concrete pipes, self-stressed reinforced concrete pipes, and prestressed concrete pipes.

[0003] Concrete pipes are manufactured using centrifugal, vibration, rolling, vacuum, and a combination of rolling, centrifugal, and vibration methods. To improve the performance of concrete pipes, China and many other countries have developed prestressed concrete pressure pipes. These pipes are equipped with longitudinal and circumferential prestressed steel bars, resulting in high crack and impermeability resistance. In the 1980s, China and several other countries developed self-stressed reinforced concrete pipes. Their key feature is that they utilize the expansion of self-stressing cement (see special cement) during the hardening process to generate prestress, simplifying the manufacturing process. Compared to steel pipes, concrete pipes can significantly save steel and extend their service life. They also require low construction investment and are easy to lay and install. They are widely used in factories, mines, oil fields, ports, urban construction, and farmland irrigation projects. However, these applications inevitably involve the transport of corrosive liquids. Relying solely on the structure of concrete pipes, their corrosion resistance is relatively low, resulting in a short service life. Therefore, a concrete pipe with a PE lining is urgently needed to address these issues. Utility Model Content

[0004] The purpose of the utility model is to provide a concrete pipe with a PE lining to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A concrete pipe with a PE liner includes a concrete pipe fitting, which is composed of a concrete pipe and a PE liner. The PE liner is arranged inside the concrete pipe, the concrete pipe has a slot, and the PE liner has a clip strip, which is clipped into the slot.

[0007] Preferably, the shape of the card slot is an inverted trapezoid, and the shape of the card strip is adapted to the shape of the card slot.

[0008] Preferably, the concrete pipe includes a plurality of truss bars, and the truss bars are distributed at the outer and inner rings of the concrete pipe, and the truss bars located at the outer and inner rings of the concrete pipe are distributed alternately.

[0009] Preferably, a tie bar is provided between any two adjacent truss bars.

[0010] Preferably, there are several slots, each of which is provided on the inner wall of the concrete pipe and located on one side of the truss reinforcement.

[0011] Preferably, there are several card strips, which are arranged outside the PE liner, and the number of card strips corresponds to the number of card slots.

[0012] Preferably, one end of the concrete pipe is provided with a pipe joint, the pipe joint is provided with a first sealing ring and a second sealing ring, and one end of the concrete pipe is in contact with the first sealing ring.

[0013] Preferably, the first sealing ring and the second sealing ring are both rubber sealing rings.

[0014] In the above technical solution, the utility model provides a concrete pipe with a PE lining, (1) through the PE lining, when used for drainage of urban rainwater, sewage or farmland irrigation, the material transported inside the concrete pipe is corrosive, resulting in a reduction in the service life of the concrete pipe. The composite PE pipe on the inner wall of the prestressed concrete pipe can increase the anti-corrosion function and can be used for the transportation of corrosive liquids; (2) through the provided slots and strips, after a period of use, when the lining is worn or damaged by external forces, the lining can be well replaced. At the same time, the provided inverted trapezoidal structure can well prevent the impact of flowing liquid on the concrete pipe, and the other part can play the role of buffering liquid; (3) through the provided truss bars and tension bars, the stability of the triangle can be well utilized to increase the strength of the concrete pipe and improve the service life of the concrete pipe during use; (4) through the provided first sealing ring and second sealing ring, the first sealing ring and the second sealing ring are made of rubber material, which on the one hand play a sealing effect, and on the other hand, the contact between the liquid and the rubber can avoid further corrosion of the pipe joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 The present invention provides a cross-sectional structural diagram of a concrete pipe with a PE lining according to an embodiment of the present invention.

[0017] Figure 2 A schematic diagram of the concrete pipe structure provided for an embodiment of a concrete pipe with a PE lining according to the present utility model.

[0018] Figure 3 A schematic diagram of a PE lining provided for an embodiment of a concrete pipe with a PE lining according to the present invention.

[0019] Figure 4 A schematic diagram of a pipe joint provided for an embodiment of a concrete pipe with a PE lining according to the present invention.

[0020] Figure 5 The present invention is a perspective schematic diagram of a pipe joint provided in an embodiment of a concrete pipe with a PE lining.

[0021] Figure 6 This is a schematic diagram of a first sealing ring and a second sealing ring provided in an embodiment of a concrete pipe with a PE liner according to the present invention.

[0022] Description of reference numerals:

[0023] 1. Concrete pipe fittings, 2. Concrete pipes, 3. PE lining, 4. Tie bars, 5. Rafter bars, 6. Clamping grooves, 7. Clamping strips, 8. Pipe joints, 9. First sealing ring, 10. Second sealing ring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-6 As shown, the embodiment of the present invention provides a concrete pipe with a PE lining, including a concrete pipe fitting 1, which is composed of a concrete pipe 2 and a PE lining 3. The PE lining is used for drainage of urban rainwater, sewage, or agricultural irrigation, etc., because the substances transported inside the concrete pipe are corrosive, resulting in a reduction in the service life of the concrete pipe. The inner wall of the prestressed concrete pipe is composited with a PE pipe to increase the corrosion resistance and can be used for transporting corrosive liquids. The PE lining 3 is disposed inside the concrete pipe 2, and the concrete pipe 2 has a slot 6. The PE lining 3 has a clip 7, which is clipped into the slot 6.

[0026] Specifically in this embodiment, the concrete pipe fitting 1 is composed of a concrete pipe 2 and a PE liner 3. The PE liner 3 is arranged inside the concrete pipe 2. The concrete pipe 2 has a slot 6, and the PE liner 3 has a clip 7. The clip 7 is clipped into the slot 6. After a period of use, when the liner is worn or damaged by external forces, the slot and the clip can be replaced well. At the same time, the inverted trapezoidal structure can effectively prevent the impact of the flowing liquid on the concrete pipe, and the other part can play the role of buffering the liquid.

[0027] Preferably, the shape of the card slot 6 is an inverted trapezoid, and the shape of the card strip 7 is adapted to the shape of the card slot 6 .

[0028] Preferably, the concrete pipe 2 includes a plurality of truss bars 5 , which are distributed at the outer and inner rings of the concrete pipe 2 , and the truss bars 5 at the outer and inner rings of the concrete pipe 2 are alternately distributed.

[0029] Preferably, a tie bar 4 is provided between any two adjacent truss bars 5 .

[0030] The utility model can make good use of the stability of the triangle by arranging the truss reinforcement and the tension reinforcement, thereby increasing the strength of the concrete pipe and prolonging the service life of the concrete pipe during use.

[0031] Preferably, there are several slots 6, which are arranged on the inner wall of the concrete pipe 2 and on one side of the truss reinforcement 5. The concrete pipe at the position of the truss reinforcement 5 has a strong rigid structure. The slots are arranged at this position to prevent damage to the slots and increase the strength of the connection.

[0032] Preferably, there are several clamping strips 7 , which are arranged outside the PE liner 3 . The number of clamping strips 7 corresponds to the number of clamping slots 6 , and the clamping strips 7 and the PE liner 3 are integrally formed.

[0033] Preferably, one end of the concrete pipe 1 is provided with a pipe joint, the pipe joint 8 is provided with a first sealing ring 9 and a second sealing ring 10 , and one end of the concrete pipe 1 abuts against the first sealing ring 9 .

[0034] Preferably, the first sealing ring 9 and the second sealing ring 10 are both rubber sealing rings.

[0035] The utility model provides a first sealing ring and a second sealing ring, which are made of rubber material. On the one hand, they have a sealing effect, and on the other hand, the contact between liquid and rubber can avoid further corrosion to the pipe joint.

[0036] Example 1

[0037] A concrete pipe with a PE liner, a concrete pipe fitting 1 consisting of a concrete pipe 2 and a PE liner 3, the PE liner 3 being arranged inside the concrete pipe 2, the concrete pipe 2 having a slot 6, the PE liner 3 having a clip 7, the clip 7 being clipped into the slot 6; the slot and the clip can be replaced well after a period of use when the liner is worn or damaged by external forces, and the inverted trapezoidal structure can effectively prevent the impact of flowing liquid on the concrete pipe, while the other part can buffer the liquid.

[0038] Example 2

[0039] This embodiment is further defined on the basis of the embodiment 1, in that the shape of the slot 6 is an inverted trapezoid, and the shape of the clamping strip 7 is adapted to the shape of the slot 6; the concrete pipe 2 includes a plurality of truss bars 5, which are distributed at the outer and inner rings of the concrete pipe 2, and the truss bars 5 located at the outer and inner rings of the concrete pipe 2 are alternately distributed; a tension bar 4 is provided between any two adjacent truss bars 5.

[0040] The utility model can make good use of the stability of the triangle by arranging the truss reinforcement and the tension reinforcement, thereby increasing the strength of the concrete pipe and prolonging the service life of the concrete pipe during use.

[0041] One end of the concrete pipe 1 is provided with a pipe joint, and the pipe joint 8 is provided with a first sealing ring 9 and a second sealing ring 10. One end of the concrete pipe 1 abuts against the first sealing ring 9; the first sealing ring 9 and the second sealing ring 10 are both rubber sealing rings.

[0042] The utility model provides a first sealing ring and a second sealing ring, which are made of rubber material. On the one hand, they have a sealing effect, and on the other hand, the contact between liquid and rubber can avoid further corrosion to the pipe joint.

[0043] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A concrete pipe with PE lining, characterized in that: The concrete pipe fitting (1) is composed of a concrete pipe (2) and a PE liner (3). The PE liner (3) is arranged inside the concrete pipe (2). The concrete pipe (2) has a clamping groove (6). The PE liner (3) has a clamping strip (7). The clamping strip (7) is clamped inside the clamping groove (6).

2. A concrete pipe with PE lining according to claim 1, characterized in that: The shape of the card slot (6) is an inverted trapezoid, and the shape of the card strip (7) is adapted to the shape of the card slot (6).

3. The concrete pipe with PE lining according to claim 1, characterized in that: The concrete pipe (2) includes a plurality of truss bars (5) arranged thereon. The truss bars (5) are distributed at the outer and inner rings of the concrete pipe (2). The truss bars (5) located at the outer and inner rings of the concrete pipe (2) are distributed alternately.

4. The concrete pipe with PE lining according to claim 3, characterized in that: A tensioning bar (4) is provided between any two adjacent truss bars (5).

5. The concrete pipe with PE lining according to claim 1, characterized in that: There are several clamping grooves (6), and the clamping grooves (6) are arranged on the inner wall of the concrete pipe (2). The clamping grooves (6) are located on one side of the truss reinforcement (5).

6. The concrete pipe with PE lining according to claim 1, characterized in that: There are several clamping strips (7), which are arranged outside the PE liner (3). The number of clamping strips (7) corresponds to the number of clamping slots (6).

7. The concrete pipe with PE lining according to claim 1, characterized in that: One end of the concrete pipe (1) is provided with a pipe joint, the pipe joint (8) is provided with a first sealing ring (9) and a second sealing ring (10), and one end of the concrete pipe (1) abuts against the first sealing ring (9).

8. The concrete pipe with PE lining according to claim 7, characterized in that: The first sealing ring (9) and the second sealing ring (10) are both rubber sealing rings.

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