FRPP (Fiber Reinforced Polypropylene) ribbed pipe with inner support structure

Abstract

The utility model discloses an FRPP (Fiber Reinforced Polypropylene) ribbed pipe with an inner supporting structure, which comprises a ribbed pipe body, a plurality of annular bulges distributed at equal intervals are arranged on the annular side wall of the ribbed pipe body, and an annular inner supporting pipe is inserted into the ribbed pipe body. A plurality of annular inner supporting blocks are fixedly connected between the annular side wall of the annular inner supporting pipe and the annular inner wall of the ribbed pipe body, and the annular inner supporting blocks are distributed at equal intervals. The annular inner supporting blocks are connected with the second inner supporting rings in a sleeved mode respectively, the annular inner supporting blocks are fixed between the ribbed pipe body and the annular inner supporting pipe, so that the annular inner supporting pipe is matched with the annular inner supporting blocks, and the first inner supporting rings and the second inner supporting rings provide stable supporting for the ribbed pipe body; the reinforced pipe body is prevented from being deformed after being pressed, the use effect is ensured, the corrosion-resistant effect of the inner wall of the reinforced pipe body is improved through the corrosion-resistant coating made of polytetrafluoroethylene paint, and the service life of the reinforced pipe body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of FRPP reinforced pipes, in particular to an FRPP reinforced pipe with an inner support structure. Background Art

[0002] FRPP reinforced pipes are produced from glass fiber modified polypropylene materials treated with coupling agents. Under rated temperature and pressure conditions, FRPP pipes can be safely used for more than 50 years, can resist the corrosion of most chemicals, and can withstand the corrosion of high-concentration acids and alkalis. Due to the addition of glass fiber reinforcement materials, FRPP pipes are not easily deformed.

[0003] In actual use, the existing FRPP reinforced pipes lack an inner support structure inside, are prone to deformation under pressure, affecting the use effect, and the inner wall of the FRPP reinforced pipes lacks corrosion resistance, resulting in a low service life. Now, an FRPP reinforced pipe with an inner support structure is proposed to solve the above problems. Summary of the Utility Model

[0004] Aiming at the deficiencies and defects in the prior art, the utility model provides an FRPP reinforced pipe with an inner support structure to solve the technical problems that in actual use, the existing FRPP reinforced pipes lack an inner support structure inside, are prone to deformation under pressure, affecting the use effect, and the inner wall of the FRPP reinforced pipes lacks corrosion resistance, resulting in a low service life.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An FRPP reinforced pipe with an inner support structure includes a reinforced pipe body. A plurality of annular protrusions are arranged on the annular side wall of the reinforced pipe body at equal intervals. An annular inner support pipe is inserted into the reinforced pipe body. A plurality of annular inner support blocks are fixedly connected between the annular side wall of the annular inner support pipe and the annular inner wall of the reinforced pipe body. The plurality of annular inner support blocks are arranged at equal intervals. A first inner support ring is inserted between adjacent two of the annular inner support blocks. The plurality of first inner support rings are respectively arranged opposite to the plurality of annular protrusions.

[0007] Preferably, the plurality of annular protrusions and the first inner support rings are integrally formed with the reinforced pipe body.

[0008] Preferably, a second inner support ring is inserted into one end of each of the plurality of annular inner support blocks facing the annular inner support pipe. The plurality of second inner support rings are respectively in contact with the side walls of the plurality of annular inner support blocks. The plurality of second inner support rings are all sleeved on the annular inner support pipe.

[0009] Preferably, the annular inner support pipe, the annular inner support blocks, the first inner support rings and the second inner support rings are made of the same material as the reinforced pipe body.

[0010] Preferably, the cross-section of the annular inner support block is triangular pyramid-shaped, the cross-section of the first inner support ring is rectangular, and the cross-section of the second inner support ring is circular.

[0011] Preferably, a corrosion-resistant coating is applied on the annular inner wall of the annular inner support pipe, and the corrosion-resistant coating is polytetrafluoroethylene paint.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By sleeving a plurality of annular inner support blocks on a plurality of second inner support rings respectively and fixing the plurality of annular inner support blocks between the reinforced pipe body and the annular inner support pipe, the annular inner support pipe cooperates with the annular inner support blocks, the first inner support ring and the second inner support ring to provide stable support for the reinforced pipe body, prevent the reinforced pipe body from deforming after being pressed, and ensure the use effect.

[0014] 2. Through the corrosion-resistant coating of polytetrafluoroethylene paint, the corrosion-resistant effect of the inner wall of the reinforced pipe body is improved, and the service life of the reinforced pipe body is prolonged. Description of the Drawings

[0015] Figure 1 is a perspective schematic view of an FRPP reinforced pipe with an inner support structure proposed by the present utility model;

[0016] Figure 2 is Figure 1 the partial enlarged view of part A in

[0017] Figure 3 is a cross-sectional view schematic of the annular inner support block and the second inner support ring of an FRPP reinforced pipe with an inner support structure proposed by the present utility model;

[0018] Figure 4 is a cross-sectional view schematic of the annular inner support pipe and the corrosion-resistant coating of an FRPP reinforced pipe with an inner support structure proposed by the utility model.

[0019] In the figure: 1 reinforced pipe body, 2 annular protrusion, 3 annular inner support pipe, 4 annular inner support block, 5 first inner support ring, 6 second inner support ring, 7 corrosion-resistant coating. Detailed Embodiment

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Refer to Figures 1-4 , a FRPP reinforced pipe with an inner support structure, including a reinforced pipe body 1. A number of annular protrusions 2 are arranged at equal intervals on the annular side wall of the reinforced pipe body 1. An annular inner support pipe 3 is inserted into the reinforced pipe body 1. A number of annular inner support blocks 4 are fixedly connected between the annular side wall of the annular inner support pipe 3 and the annular inner wall of the reinforced pipe body 1. The number of annular inner support blocks 4 is arranged at equal intervals. A first inner support ring 5 is inserted between adjacent two annular inner support blocks 4. A number of first inner support rings 5 are respectively arranged opposite to a number of annular protrusions 2. A number of annular protrusions 2 and the first inner support rings 5 are integrally formed with the reinforced pipe body 1. The integrally formed annular protrusions 2, first inner support rings 5 and reinforced pipe body 1 can improve the compressive capacity of the reinforced pipe body 1 and are convenient for forming and processing.

[0023] A second inner support ring 6 is inserted at one end of a number of annular inner support blocks 4 facing the annular inner support pipe 3. A number of second inner support rings 6 are respectively in contact with the side walls of a number of annular inner support blocks 4. A number of second inner support rings 6 are sleeved on the annular inner support pipe 3. The annular inner support pipe 3, annular inner support blocks 4, first inner support rings 5 and second inner support rings 6 are made of the same material as the reinforced pipe body 1. The cross-section of the annular inner support block 4 is in the shape of a triangular pyramid. The cross-section of the first inner support ring 5 is in the shape of a rectangle. The cross-section of the second inner support ring 6 is in the shape of a circle. A number of annular inner support blocks 4 are respectively sleeved on a number of second inner support rings 6, and a number of annular inner support blocks 4 are fixed between the reinforced pipe body 1 and the annular inner support pipe 3. At this time, a number of first inner support rings 5 are respectively in contact with adjacent two annular inner support blocks 4, so that the annular inner support pipe 3 cooperates with the annular inner support blocks 4, first inner support rings 5 and second inner support rings 6 to provide stable support for the reinforced pipe body 1, prevent the reinforced pipe body 1 from deforming after being pressed, and ensure the use effect. A corrosion-resistant coating 7 is coated on the annular inner wall of the annular inner support pipe 3. The corrosion-resistant coating 7 is a polytetrafluoroethylene coating. Through the corrosion-resistant coating 7 of the polytetrafluoroethylene coating, the corrosion-resistant effect of the inner wall of the reinforced pipe body 1 is improved, and the service life of the reinforced pipe body 1 is prolonged.

[0024] When the utility model is in use, a plurality of annular inner support blocks 4 are respectively sleeved on a plurality of second inner support rings 6, and the plurality of annular inner support blocks 4 are fixed between the ribbed pipe body 1 and the annular inner support pipe 3. At this time, a plurality of first inner support rings 5 are respectively in contact with two adjacent annular inner support blocks 4, so that the annular inner support pipe 3 cooperates with the annular inner support blocks 4, the first inner support rings 5 and the second inner support rings 6 to provide stable support for the ribbed pipe body 1, prevent the ribbed pipe body 1 from deforming after being pressed, ensure the use effect, and improve the corrosion resistance effect of the inner wall of the ribbed pipe body 1 through the corrosion-resistant coating 7 of polytetrafluoroethylene paint, and extend the service life of the ribbed pipe body 1.

[0025] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the utility model.

Claims

1. A FRPP reinforced pipe with an internal support structure, comprising a reinforced pipe body (1), characterized in that: The annular side wall of the reinforced tube body (1) is provided with a plurality of annular protrusions (2) arranged at equal intervals. An annular inner support tube (3) is inserted into the reinforced tube body (1). A plurality of annular inner support blocks (4) are fixedly connected between the annular side wall of the annular inner support tube (3) and the annular inner wall of the reinforced tube body (1). The plurality of annular inner support blocks (4) are arranged at equal intervals. A first inner support ring (5) is inserted between two adjacent annular inner support blocks (4). The plurality of first inner support rings (5) are respectively arranged opposite to the plurality of annular protrusions (2).

2. The FRPP reinforced pipe with an internal support structure according to claim 1, characterized in that: The plurality of annular protrusions (2) and the first inner support ring (5) are integrally formed with the ribbed tube body (1).

3. The FRPP reinforced pipe with an internal support structure according to claim 1, characterized in that: A second inner support ring (6) is inserted into one end of the plurality of annular inner support blocks (4) facing the annular inner support tube (3), and the plurality of second inner support rings (6) are respectively in contact with the side walls of the plurality of annular inner support blocks (4), and the plurality of second inner support rings (6) are all sleeved on the annular inner support tube (3).

4. The FRPP reinforced pipe with an internal support structure according to claim 3, characterized in that: The annular inner support tube (3), the annular inner support block (4), the first inner support ring (5) and the second inner support ring (6) are all made of the same material as the reinforced tube body (1).

5. The FRPP reinforced pipe with an internal support structure according to claim 3, characterized in that: The cross section of the annular inner support block (4) is arranged in a triangular cone shape, the cross section of the first inner support ring (5) is arranged in a rectangular shape, and the cross section of the second inner support ring (6) is arranged in a circular shape.

6. The FRPP reinforced pipe with an internal support structure according to claim 1, characterized in that: The annular inner wall of the annular inner support tube (3) is coated with a corrosion-resistant coating (7), and the corrosion-resistant coating (7) is a polytetrafluoroethylene coating.

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