Plastic S-shaped supporting rib hollow wall winding reinforced pipe

Abstract

The utility model relates to a plastic S-shaped supporting rib hollow wall winding reinforcing pipe which is formed by spirally winding hollow rectangular sectional materials, the side walls of the adjacent rectangular sectional materials are spirally wound and welded to form a reinforcing rib of the hollow wall winding reinforcing pipe, and the middle of each rectangular sectional material is provided with a plastic S-shaped supporting rib. The upper and lower bent surfaces or two side surfaces of the plastic S-shaped supporting rib are respectively connected with the upper and lower ends of the rectangular section bar, and the plastic S-shaped supporting rib is formed by bending a plastic sheet. The width of the rectangular section bar can be increased by at least one time, namely, the plastic S-shaped supporting ribs are used for replacing part of reinforcing ribs in an original hollow wall winding reinforcing pipe at intervals, and compared with the reinforcing ribs in the original hollow wall winding reinforcing pipe, the plastic S-shaped supporting ribs with the same width can not only ensure the ring stiffness, but also greatly reduce the required materials, so that the cost is reduced. And the meter weight of the pipe is greatly reduced.

Description

Technical field

[0001] The utility model relates to the technical field of wound reinforced pipes, in particular to a plastic S-shaped support rib hollow wall wound reinforced pipe. [Background Technology]

[0002] The hollow wall wound reinforced pipe is formed by spirally winding a hollow rectangular profile. The side walls of adjacent rectangular profiles are spirally wound and welded to form the reinforcement ribs of the hollow wall wound reinforced pipe. The ring stiffness of the pipe mainly depends on the thickness and width of the rectangular profile, that is, it mainly depends on the thickness of the reinforcement ribs and the spacing between adjacent reinforcement ribs. The increase in the thickness of the rectangular profile will inevitably lead to an increase in the weight per meter of the pipe. Similarly, the smaller the width of the rectangular profile, the higher the ring stiffness, but it will also inevitably lead to an increase in the weight per meter of the pipe. If the width of the rectangular profile is increased, the hollow section in the pipe wall will increase, which will greatly reduce the ring stiffness. This is a contradiction and a difficulty that has been difficult to overcome in the field of wound reinforced pipes. [Utility Model Content]

[0003] In order to solve the above problems, the purpose of the present invention is to provide a plastic S-shaped support rib hollow wall wrapped reinforcement tube which can increase the width of the rectangular profile, reduce the weight per meter, and ensure the ring stiffness of the tube.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a plastic S-shaped support rib hollow wall wrapped reinforcement tube, which is formed by spiral winding of a hollow rectangular profile, and the side walls of adjacent rectangular profiles are spirally wound and welded to form the reinforcement ribs of the hollow wall wrapped reinforcement tube, and a plastic S-shaped support rib is provided in the middle of the rectangular profile, and the upper and lower bending surfaces or two side surfaces of the plastic S-shaped support rib are respectively connected to the upper and lower ends of the rectangular profile, and the plastic S-shaped support rib is formed by bending a plastic sheet.

[0005] A plastic S-shaped support rib hollow wall wrapped reinforcement tube in the utility model is further configured as follows: an upper positioning groove is provided at the upper end of the rectangular profile, and a lower positioning groove is provided at the lower end of the rectangular profile, and the widths of the upper positioning groove and the lower positioning groove match the width of the plastic S-shaped support rib.

[0006] A plastic S-shaped support rib hollow wall wrapped reinforcement tube in the utility model is further configured as follows: the rectangular profile and the plastic S-shaped support rib are co-extruded and composite molded, and the upper positioning groove, the lower positioning groove and the plastic S-shaped support rib are welded into one.

[0007] The plastic S-shaped support rib hollow wall wound reinforcement tube in the utility model is further configured as follows: a through hole parallel to the rib body is provided in the plastic S-shaped support rib.

[0008] The plastic S-shaped support rib hollow wall wound reinforcement tube in the utility model is further configured as follows: side holes are provided in the plate surface of the plastic S-shaped support rib.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. Plastic S-shaped support ribs are set in the middle of the rectangular profile, so that the width of the rectangular profile can be increased by at least twice. That is, the plastic S-shaped support ribs are used to replace part of the reinforcement ribs in the original hollow wall wound reinforced tube. Compared with the reinforcement ribs in the original hollow wall wound reinforced tube, the plastic S-shaped support ribs of the same width can not only ensure the ring stiffness, but also greatly reduce the required material, so that the meter weight of the tube is greatly reduced.

[0011] 2. The plastic S-shaped support ribs are formed first, so that the bending angle and height can be determined according to the ring stiffness required for the wrapped reinforced tube, that is, the width and height of the plastic S-shaped support ribs after bending are determined, thereby ensuring the ring stiffness of the wrapped reinforced tube. The plastic S-shaped support ribs are co-extruded with the body, which is not only conducive to heat dissipation, but also greatly improves the extrusion production speed.

[0012] 3. The upper and lower ends of the middle of the rectangular profile are respectively provided with upper and lower positioning grooves. When the rectangular profile and the plastic S-shaped support rib are made of the same material, the two can be stably fused. Even when the rectangular profile and the plastic S-shaped support rib are made of different materials, the presence of the upper and lower positioning grooves can ensure a reliable connection between the two.

[0013] 4. The plastic S-shaped support ribs are provided with through holes parallel to the rib body or side holes are provided in the plate surface, which reduces the weight per unit length of the plastic S-shaped support ribs, thereby reducing the weight per unit length of the wound reinforcement tube.

[0014] 5. The continuous waves formed by the plastic S-shaped support ribs after bending form a triangular support force; the support strength increases with the increase of the bending angle, which is 2 to 3 times that of the original plate with the same thickness; because the plastic S-shaped support ribs are a continuous wave, they can extend with the bending during the bending and winding process without affecting the ring stiffness of the pipe, reducing the loss of ring stiffness of the entire pipe due to the support ribs being subjected to excessive yield force during spiral winding. Through practice, the plastic S-shaped support rib wrapped reinforced pipe has an annular stiffness of 1.5 to 2 times higher than that of the currently used wrapped reinforced pipes of the same caliber; and under the premise of the same caliber pipe and the same annular stiffness, the same raw materials are saved by 13-30%, making a contribution to society.

Brief Description of the Drawings

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure in the AA direction;

[0017] Figure 3 yes Figure 1 A schematic cross-sectional view of another embodiment in the AA direction;

[0018] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure of the middle part B;

[0019] Figure 5 This is a schematic diagram of the structure of the plastic S-shaped support rib in the utility model;

[0020] Figure 6 This is another structural diagram of the plastic S-shaped support rib in the present invention;

[0021] Figure 7 This is another structural diagram of the plastic S-shaped support rib in the present invention;

[0022] In the figure: 1. rectangular profile, 2. reinforcing rib, 3. plastic S-shaped supporting rib, 31. side, 32. bending surface, 4. upper positioning groove, 5. lower positioning groove, 6. through hole, 7. side hole. [Specific implementation method]

[0023] The following is a further detailed description of the plastic S-shaped support rib hollow wall wrapped reinforcement tube described in the present invention through specific embodiments.

[0024] like Figure 1 、 Figure 4 As shown, a plastic S-shaped support rib hollow wall winding reinforcement tube is formed by spirally winding a hollow rectangular profile 1. The side walls of adjacent rectangular profiles 1 are spirally wound and welded to form a reinforcement rib 2 of the hollow wall winding reinforcement tube. A plastic S-shaped support rib 3 is provided in the middle of the rectangular profile 1. The upper and lower bending surfaces 32 or the two side surfaces 31 of the plastic S-shaped support rib 3 are respectively connected to the upper and lower ends of the rectangular profile 1. Figure 2 As shown, the upper and lower bending surfaces 31 of the plastic S-shaped support rib 3 are connected to the upper and lower ends of the rectangular profile 1 respectively, as shown in FIG. Figure 3 As shown in FIG, the two side surfaces 31 of the plastic S-shaped support rib 3 are connected to the upper and lower ends of the rectangular profile 1 respectively. Figure 5 As shown, the plastic S-shaped supporting rib 3 is formed by bending a plastic sheet.

[0025] As a preferred solution, Figure 4As shown, the upper end of the rectangular profile 1 is provided with an upper positioning groove 4, and the lower end of the rectangular profile 1 is provided with a lower positioning groove 5. The widths of the upper positioning groove 4 and the lower positioning groove 5 match the width of the plastic S-shaped support rib 3. The rectangular profile 1 and the plastic S-shaped support rib 3 are co-extruded and composite-molded, and the upper positioning groove 4 and the lower positioning groove 5 are fused together with the plastic S-shaped support rib 3. When the rectangular profile 1 and the plastic S-shaped support rib 3 are made of the same material, the two can be stably fused. Even when the rectangular profile 1 and the plastic S-shaped support rib 3 are made of different materials, the presence of the upper positioning groove 4 and the lower positioning groove 5 can ensure that the two can be reliably connected.

[0026] As a preferred solution, Figure 6 As shown, the plastic S-shaped support rib 3 is provided with a through hole 6 parallel to the rib body. The through hole 6 reduces the weight per meter of the plastic S-shaped support rib 3 per unit length, thereby reducing the weight per meter of the wound reinforcement tube. As another embodiment of the present application, Figure 7 As shown, a side hole 7 is provided in the side surface 31 of the plastic S-shaped support rib 3. The side hole 7 can also reduce the weight per meter of the plastic S-shaped support rib 3 per unit length, thereby reducing the weight per meter of the corrugated pipe.

[0027] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A plastic S-shaped support rib hollow wall winding reinforcement tube, formed by spirally winding a hollow rectangular profile, wherein the side walls of adjacent rectangular profiles are spirally wound and welded to form the reinforcement ribs of the hollow wall winding reinforcement tube, characterized by: A plastic S-shaped support rib is provided in the middle of the rectangular profile, and the upper and lower bending surfaces or two side surfaces of the plastic S-shaped support rib are respectively connected to the upper and lower ends of the rectangular profile. The plastic S-shaped support rib is formed by bending a plastic sheet.

2. A plastic S-shaped support rib hollow wall wound reinforced tube according to claim 1, characterized in that: An upper positioning groove is provided at the upper end of the rectangular profile, and a lower positioning groove is provided at the lower end of the rectangular profile. The widths of the upper positioning groove and the lower positioning groove match the width of the plastic S-shaped supporting rib.

3. The plastic S-shaped support rib hollow wall wound reinforced tube according to claim 2, characterized in that: The rectangular profile and the plastic S-shaped supporting rib are co-extruded and composite-molded, and the upper positioning groove, the lower positioning groove and the plastic S-shaped supporting rib are fused into one.

4. A plastic S-shaped support rib hollow wall wound reinforced tube according to claim 1 or 2, characterized in that: The plastic S-shaped supporting rib is provided with a through hole parallel to the rib body.

5. A plastic S-shaped support rib hollow wall wound reinforced tube according to claim 1 or 2, characterized in that: Side holes are provided in the plate surface of the plastic S-shaped supporting rib.

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