A large-diameter FRPP wound structure wall pipe

Abstract

This utility model relates to the field of FRPP pipe technology, specifically to a large-diameter FRPP spiral wound structure wall pipe, including a pipe body with spiral strips spirally wound on its surface. Flanges are fixed at both ends of the pipe body, and a sealing support mechanism is inserted into the side of each flange. The sealing support mechanism includes a support pipe and a sealing sleeve. The sealing sleeve is bonded to the outer surface of the support pipe, and the support pipe is tightly inserted into one end of the pipe body. A first connecting plate is fixed to the outer side of the support pipe, and an insertion ring is fixed to the outer side of the first connecting plate. When two large-diameter FRPP spiral wound structure wall pipes are connected, the support pipe is tightly inserted into the interior of both pipes through the external sealing sleeve, and is stably installed by a positioning post and a second connecting plate. This strengthens and seals the connection between the two large-diameter FRPP spiral wound structure wall pipes, improving the sealing safety of the connection. It also strengthens the surface support of the pipe body, increasing its strength.

Description

Technical Field

[0001] This utility model relates to the field of FRPP pipe technology, specifically a large-diameter FRPP wound structure wall pipe. Background Technology

[0002] Large-diameter FRPP spiral wound structured wall pipe, also known as reinforced polypropylene (FRPP) hollow double-wall spiral wound pipe, is a new type of pipe made by continuously winding polypropylene as the main polymer raw material, with the addition of appropriate modifying agents and auxiliary materials, using internationally advanced modified formula technology. Large-diameter FRPP spiral wound structured wall pipes come in a wide variety of diameters, ranging from 200-3200mm in inner diameter and ring stiffness grades from 4 to 16. Connection methods include: anti-settlement plastic double-headed clamp expansion joint connection, one-piece flared socket rubber ring connection, and capacitor welding technology, which fuses the two ends of the pipe at the joint into one piece. Large-diameter FRPP spiral wound structured wall pipes are mainly used in buried drainage, sewage, and irrigation fields.

[0003] Existing large-diameter FRPP spiral wound structured wall pipes have a simple spiral structure wound on the outside of the pipe body. However, the spiral structure is relatively simple and not convenient for strengthening the pipe body. Moreover, the connection between two large-diameter FRPP spiral wound structured wall pipes is made by flange and bolt fasteners. However, due to the large pipe diameter, the connection between the two large-diameter FRPP spiral wound structured wall pipes may have indentations or other issues that cause gaps, affecting the safe and sealed connection between the two large-diameter FRPP spiral wound structured wall pipes.

[0004] Therefore, a large-diameter FRPP spiral wound structure wall pipe is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a large-diameter FRPP wound structure wall pipe, which can solve the problem that due to the large pipe diameter, gaps may appear at the connection between two large-diameter FRPP wound structure wall pipes, affecting the safe sealing connection of the two large-diameter FRPP wound structure wall pipes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large-diameter FRPP wound structure wall pipe, comprising a pipe body, the surface of which is spirally wound with spiral strips, flanges fixed at both ends of the pipe body, and a sealing support mechanism inserted into the side of the flanges;

[0007] The sealing support mechanism includes a support tube and a sealing sleeve. The sealing sleeve is bonded to the outer surface of the support tube. The support tube is tightly inserted into one end of the tube body. A first connecting plate is fixed to the outside of the support tube, and a plug ring is fixed to the outside of the first connecting plate.

[0008] Preferably, the flange has a groove on its side, the groove being a circular structure, and one side of the insertion ring is inserted into the groove.

[0009] Preferably, sealing gaskets are bonded to both sides of the insertion ring. The sealing gaskets have a circular structure and are tightly abutted against the inner side of the groove.

[0010] Preferably, a positioning groove is evenly opened on the outer side of the flange and at the position outside the groove, and a second connecting plate is fixed on the outer side of the plug ring.

[0011] Preferably, the second connecting plate is located on the outside of the flange, and positioning posts are fixed on both sides of the second connecting plate, with the positioning posts inserted into the positioning groove.

[0012] Preferably, a sealing ring is bonded to the side edge of the flange, an installation hole is opened on the surface of the flange and at the position inside the sealing ring, and a reinforcing rib is fixed between the outer side of the flange and the outer side of the pipe body.

[0013] Preferably, two spiral strips are spirally wound around the surface of the tube in opposite directions. The cross-section of the spiral strips is rectangular, and the interior of the spiral strips is wrapped with reinforcing strips. The cross-section of the reinforcing strips is circular, and the reinforcing strips are spirally distributed in the same direction as the spiral strips.

[0014] Compared with the prior art, this utility model provides a large-diameter FRPP wound structure wall pipe, which has the following beneficial effects:

[0015] 1. Flanges are fixed at both ends of the pipe body, and the flanges are reinforced to connect the pipe bodies with reinforcing ribs. In addition, sealing rings are bonded to the side edges of the flanges, which can seal the connection between the two flanges when connecting large-diameter FRPP spiral wound structure wall pipes.

[0016] 2. The insertion ring is positioned and installed on the outside of the flange using positioning pins and positioning grooves, and the support pipe is fixed on the inside of the insertion ring using the first connecting plate. Therefore, when two large-diameter FRPP spiral wound structure wall pipes are connected, the support pipe is tightly inserted into the interior of the two large-diameter FRPP spiral wound structure wall pipes through the external sealing sleeve, and is stably installed by the positioning pins and the second connecting plate. This strengthens and seals the connection between the two large-diameter FRPP spiral wound structure wall pipes, improving the sealing safety of the connection. 3. Two spiral strips are spirally wound in different directions on the surface of the pipe body, and a reinforcing strip is wrapped inside the spiral strips. Therefore, the surface of the pipe body is strengthened and supported, improving its strength. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the large-diameter FRPP wound wall tube of this utility model;

[0018] Figure 2This is a schematic diagram of the flange and groove portion of the large-diameter FRPP wound structure wall pipe of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing support mechanism of the large-diameter FRPP wound structure wall pipe of this utility model;

[0020] Figure 4 This is a schematic diagram of the spiral strip and reinforcing strip of the large-diameter FRPP wound structure wall pipe of this utility model.

[0021] In the diagram: 1. Pipe body; 2. Spiral strip; 3. Flange; 4. Mounting hole; 5. Reinforcing rib; 6. Positioning post; 7. Second connecting plate; 8. Insert ring; 9. Sealing gasket; 10. Sealing sleeve; 11. Support pipe; 12. Sealing ring; 13. First connecting plate; 14. Groove; 15. Positioning groove; 16. Reinforcing strip. Detailed Implementation

[0022] 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.

[0023] Example:

[0024] Please see Figure 1 - Figure 4 In this embodiment, a large-diameter FRPP wound structure wall pipe includes a pipe body 1, a spiral strip 2 spirally wound on the surface of the pipe body 1, flanges 3 fixed at both ends of the pipe body 1, and a sealing support mechanism inserted into the side of the flanges 3.

[0025] The sealing support mechanism includes a support tube 11 and a sealing sleeve 10. The sealing sleeve 10 is bonded to the outer surface of the support tube 11. The support tube 11 is tightly inserted into one end of the tube body 1. A first connecting plate 13 is fixed to the outside of the support tube 11. A plug ring 8 is fixed to the outside of the first connecting plate 13.

[0026] The flange 3 has a groove 14 on its side. The groove 14 is a circular structure, and one side of the insertion ring 8 is inserted into the groove 14.

[0027] Sealing gaskets 9 are bonded to both sides of the insertion ring 8. The sealing gaskets 9 have a circular structure and are tightly pressed against the inner side of the groove 14, so that the support tube 11 and the tube body 1 can be tightly connected and sealed. The support tube 11 also supports the inside of the tube body 1, preventing the large-diameter tube body 1 from denting and improving the strength of the connection of the tube body 1.

[0028] A positioning groove 15 is evenly opened on the outer side of the flange 3 and on the outer side of the groove 14. A second connecting plate 7 is fixed on the outer side of the plug ring 8. The second connecting plate 7 is a rectangular plate structure and is evenly distributed to provide a stable connection between the plug ring 8 and the support pipe 11.

[0029] The second connecting plate 7 is located on the outside of the flange 3. Positioning pins 6 are fixed on both sides of the second connecting plate 7. The positioning pins 6 are inserted into the positioning groove 15, so that the plug ring 8 is positioned and installed between the flange 3, preventing the plug ring 8 from shaking, and keeping the support pipe 11 stably supported and installed at the internal connection of the two pipe bodies 1.

[0030] The insertion ring 8 is positioned and installed on the outside of the flange 3 by the positioning pin 6 and the positioning groove 15, and the support pipe 11 is fixed on the inside of the insertion ring 8 by the first connecting plate 13.

[0031] Therefore, when two large-diameter FRPP spiral wound structure wall pipes are connected, the two flanges 3 are aligned with each other and fastened together by bolts passing through the mounting holes 4. In addition, the two sealing rings 12 are aligned with each other and abut against each other to maintain the tight connection between the two large-diameter FRPP spiral wound structure wall pipes.

[0032] Meanwhile, the two sides of the insertion ring 8 are respectively inserted into the grooves 14 inside the two flanges 3, and the connection between the two flanges 3 is reinforced and sealed by the sealing gasket 9.

[0033] Moreover, the support pipe 11 is tightly inserted into the interior of the two large-diameter FRPP wound structure wall pipes through the external sealing sleeve 10, and the support pipe 11 is stably installed through the positioning column 6 and the second connecting plate 7. This can strengthen and seal the connection between the two large-diameter FRPP wound structure wall pipes, improve the sealing safety of the connection, and avoid leakage caused by the dent at the connection.

[0034] In detail, a sealing ring 12 is bonded to the side edge of the flange 3, and an installation hole 4 is opened on the surface of the flange 3 at the position inside the sealing ring 12. A reinforcing rib 5 is fixed between the outer side of the flange 3 and the outer side of the pipe body 1.

[0035] Flanges 3 are fixed at both ends of the pipe body 1, and the flanges 3 are reinforced to the pipe body 1 by reinforcing ribs 5. In addition, sealing rings 12 are bonded to the side edges of the flanges 3, which can seal the connection between the two flanges 3 when connecting large-diameter FRPP wound structure wall pipes.

[0036] Finally, the two spiral strips 2 are spirally wound around the surface of the tube body 1 in opposite directions. The cross-section of the spiral strip 2 is rectangular. The interior of the spiral strip 2 is wrapped with a reinforcing strip 16, which has a circular cross-section. The reinforcing strip 16 is spirally distributed in the same direction as the spiral strip 2.

[0037] Two spiral strips 2 are spirally wound in different directions on the surface of the tube body 1, and a reinforcing strip 16 is wrapped inside the spiral strips 2. Therefore, the surface of the tube body 1 can be strengthened and supported, the strength of use can be improved, and the surface of the large-diameter FRPP spiral structure wall tube can be prevented from sinking and bending, thus maintaining the overall straightness of the large-diameter FRPP spiral structure wall tube.

[0038] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that achieves the desired beneficial effect can be implemented. Therefore, this embodiment will not elaborate further on their specific structural composition and working principle. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A large diameter FRPP wound structural wall pipe characterized by: The tube includes a pipe body, the surface of which is spirally wound with a spiral strip, and flanges are fixed at both ends of the pipe body. A sealing support mechanism is inserted into the side of the flange. The sealing support mechanism includes a support tube and a sealing sleeve. The sealing sleeve is bonded to the outer surface of the support tube. The support tube is tightly inserted into one end of the tube body. A first connecting plate is fixed to the outside of the support tube, and an insertion ring is fixed to the outside of the first connecting plate.

2. The large diameter FRPP wound structural wall pipe according to claim 1, characterized in that: The flange has a groove on its side, which is a circular ring structure, and one side of the insertion ring is inserted into the groove.

3. The large diameter FRPP wound structural wall pipe of claim 2, wherein: Sealing gaskets are bonded to both sides of the insertion ring. The sealing gaskets have a circular structure and are tightly abutted against the inner side of the groove.

4. The large diameter FRPP wound structural wall pipe of claim 3, wherein: A positioning groove is evenly provided on the outer side of the flange and at the position outside the groove, and a second connecting plate is fixed on the outer side of the plug ring.

5. The large diameter FRPP wound structural wall pipe of claim 4, wherein: The second connecting plate is located on the outside of the flange, and positioning posts are fixed on both sides of the second connecting plate, with the positioning posts inserted into the positioning groove.

6. The large diameter FRPP wound structural wall pipe of claim 1, wherein: A sealing ring is bonded to the side edge of the flange, and a mounting hole is opened on the surface of the flange at a position inside the sealing ring. A reinforcing rib is fixed between the outer side of the flange and the outer side of the pipe body.

7. The large diameter FRPP wound structural wall pipe of claim 1, wherein: Two spiral strips are spirally wound around the surface of the tube in opposite directions. The cross-section of each spiral strip is rectangular. A reinforcing strip is wrapped inside each spiral strip. The reinforcing strip has a circular cross-section and is spirally distributed in the same direction as the spiral strip.

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