High-strength high-rib reinforced pipe

Abstract

A high-strength high-rib reinforced pipe relates to the technical field of polyethylene winding pipes and comprises a pipe body and a plurality of reinforcing ribs, the pipe body is hollow, and the reinforcing ribs are sequentially and uniformly mounted on the outer end face of the pipe body at intervals in the length direction of the pipe body; the whole reinforcing rib is of a hollow structure provided with an annular cavity, the cross section of the reinforcing rib and the cross section of the annular cavity are both in a trapezoid shape, and a supporting piece matched with the annular cavity in shape is installed in the annular cavity. The supporting piece is in a hollow corrugated pipe shape and is fixed to the side wall of the annular cavity in an extruding mode. The reinforcing ribs with the trapezoidal sections are arranged on the outer end face of the pipeline body and matched with the supporting pieces in the annular cavity, so that a multi-layer reinforcing structure is formed, the ring stiffness and the compressive strength of the pipe are greatly improved, and the pipe can bear larger external pressure; the supporting piece is designed to be in a hollow corrugated pipe shape and is fixed to the side wall of the annular cavity in an extruding mode, the stability of the reinforcing ribs is further enhanced, and the deformation resistance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyethylene winding pipe technical field, specifically for high strength high rib reinforced pipe. BACKGROUND

[0002] Polyethylene winding pipe is a kind of pipe material made of high-density polyethylene as main raw material by winding forming process.It has the characteristics of light weight, corrosion resistance, impact resistance, good flexibility, etc., and is widely used in drainage, sewage, cable protection and other fields, and the pipe wall is formed by polyethylene strip spiral winding, forming a hollow structure, commonly used socket connection, hot melt connection or clamp connection, to ensure sealing and installation convenience, and in order to strengthen the structural strength of winding pipe, usually install reinforcing rib on the outer end surface of pipe body, and reinforcing rib is usually in the form of spiral or annular corrugation with pipe body installation, and the cross-sectional shape of the existing reinforcing rib is basically hollow circular or semicircular, which is a single-layer structure, and the external extrusion force is very easy to cause the deformation of reinforcing rib in actual use, and the structural strength is poor, and the main pipe material is seriously deformed under pressure, which affects the service life of winding pipe. SUMMARY

[0003] To solve the technical problems in the background art, the utility model provides high strength high rib reinforced pipe.

[0004] The utility model technical scheme is as follows:

[0005] High strength high rib reinforced pipe, including pipe body and several reinforcing ribs, the pipe body is hollow, and the several reinforcing ribs are evenly spaced along the length direction of pipe body and arranged on the outer end surface of pipe body;

[0006] The reinforcing rib is a hollow structure with annular cavity, the cross-sectional shape of the reinforcing rib and annular cavity is trapezoidal, and a support piece matched with the shape is arranged in the annular cavity;

[0007] The support piece is set as hollow bellows, which is extruded and fixed with the side wall of annular cavity.

[0008] In order to increase the flow rate of medium in pipe body, the inner end surface of pipe body is provided with a silicon core layer.

[0009] In order to improve the support strength of reinforcing rib itself, the outer end surface of reinforcing rib away from pipe body is set as arc shape with lower middle than both ends.

[0010] In order to improve the stability of support piece and make the support piece more stable in reinforcing rib, the two inner walls of reinforcing rib close to and away from pipe body are set as arc shape with outward convex middle.

[0011] The mounting mode of the reinforcing rib and the pipe body is that the reinforcing rib and the pipe body are connected through an annular bottom plate.

[0012] In order to limit the installation of the reinforcing rib and improve stability, limit protrusions that abut against the reinforcing rib are arranged on both sides of the end face of the annular bottom plate away from the pipe body, and the height is higher than the bottom of the reinforcing rib.

[0013] In order to further ensure the supporting effect of the reinforcing rib and the stability of the installation of the reinforcing rib, the length of the bottom edge of the reinforcing rib close to the pipe body is greater than the length of the bottom edge away from the pipe body. The reinforcing rib is in the shape of a trapezoid, and the length of the shorter bottom edge is not less than 1 / 2 of the length of the longer bottom edge.

[0014] In order to have a certain buffer for the reinforcing rib and the supporting member under stress, the two side angles and the cavity side angle of the reinforcing rib away from the pipe body are in a round corner structure.

[0015] In order to further improve the supporting effect of the reinforcing rib, a reinforcing assembly is arranged in the supporting member, and the reinforcing assembly is connected with the inner wall of the supporting member.

[0016] The beneficial effects of the utility model lie in that: the utility model is a high-strength high-rib reinforced pipe, and the difference between the utility model and the prior art is that the cross section and the internal space of the reinforcing rib are improved and designed, the reinforcing rib in the shape of a trapezoid is arranged on the outer end face of the pipe body, and the supporting member in the annular cavity is matched, a multi-layer reinforcing structure is formed, the ring stiffness and the compressive strength of the pipe are greatly improved, the pipe can bear greater external pressure, the supporting member is designed in the shape of a hollow corrugated pipe, is extruded and fixed with the side wall of the annular cavity, the stability of the reinforcing rib is further improved, the anti-deformation ability is improved, the trapezoidal cross section of the reinforcing rib and the supporting member in the annular cavity effectively disperse external pressure, the impact resistance of the pipe is improved, and the utility model is suitable for complex geological conditions and heavy load environments; the two inner walls of the reinforcing rib close to and away from the pipe body are arranged in the shape of an arc protruding outward, the anti-deformation ability of the structure is improved, on one hand, the anti-deformation ability is improved, and on the other hand, the connection arc of the reinforcing rib and the supporting member is limited, and the stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The scheme and advantages of the present application will become clear to those skilled in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the utility model.

[0018] In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the scheme;

[0020] Figure 2is a sectional view of the present scheme;

[0021] Figure 3 is an enlarged view of A;

[0022] Figure 4 is a side view of the support member;

[0023] Figure 5 is a sectional view of the reinforced pipe with the reinforcing assembly;

[0024] Figure 6 is an enlarged view of B;

[0025] The components represented by the reference numerals in the drawings are as follows:

[0026] 1, pipe body; 2, reinforcing rib; 3, annular cavity; 4, support member; 5, silicon core layer; 6, annular base plate; 7, limiting protrusion; 8, reinforcing assembly; 81, outer support end; 82, inner support end; 83, pressure relief hole. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings.

[0028] Embodiment

[0029] As mentioned in the background, the existing winding pipe has defects in strength, and a reinforcing rib 2 is installed on the outer end face of the main body, but the reinforcing rib 2 is hollow in structure and has a cross-sectional shape of a semicircle or a circle due to its own structural characteristics, and is very easy to deform during use, has poor strength, and is not conducive to the protection of the main body part. Therefore, the inventor improves the existing one and designs a new type of reinforced pipe structure, which will be described in detail below in combination with the drawings.

[0030] The present embodiment provides a high-strength high-rib reinforced pipe, referring to Figure 1 , comprising a pipe body 1, which is hollow and made of high-density polyethylene material by winding molding process, and has the characteristics of light weight, corrosion resistance, impact resistance, etc. A plurality of reinforcing ribs 2 are uniformly and spaced apart along the length direction on the outer end face of the pipe body 1, and the reinforcing ribs 2 are made of high-strength polyethylene particles. In addition, the outer end face of the reinforcing rib 2 away from the pipe body 1 is designed as an arc shape with the middle lower than the two ends, and the two ends are protruding, so that the position is thicker and can bear a larger part of the stress when extruded by external force. This design enhances the overall stability and pressure resistance of the pipe.

[0031] In addition, in combination with Figure 2, the end face of the pipe body 1 is provided with a silicon core layer 5 as a solid lubricant, which improves the corrosion resistance and wear resistance of the pipe, and is suitable for various fields such as drainage, sewage discharge and cable protection. The setting of the silicon core layer 5 makes the pipe not easy to be eroded by chemical substances in long-term use, prolonging the service life.

[0032] On the basis of the above structure, in combination with Figure 3 The reinforcing rib 2 is connected with the pipe body 1 through the annular bottom plate 6, and the annular bottom plate 6 is wrapped in a hot state, so that the annular bottom plate 6 is more stable, and the annular bottom plate 6 is fixed by adhesion with the pipe body 1 and the reinforcing rib 2 respectively. The end face of the annular bottom plate 6 away from the pipe body 1 is provided with a limiting convex strip 7, that is, the two ends protrude outward relative to the annular bottom plate 6, and a U-shaped mounting groove is formed in the middle. The reinforcing rib 2 is installed in the U-shaped mounting groove and is limited by the two ends. The height of the limiting convex strip 7 is higher than the bottom of the reinforcing rib 2, which is used to fix the position of the reinforcing rib 2 and prevent it from being displaced or deformed under external pressure. The design of the annular bottom plate 6 simplifies the installation process of the reinforcing rib 2 and improves the construction efficiency.

[0033] In this embodiment, the reinforcing rib 2 is a hollow structure with an annular cavity 3. Unlike the prior art, the cross-sectional shape of the reinforcing rib 2 and the annular cavity 3 is trapezoidal. The design of the trapezoidal cross-section enables the reinforcing rib 2 to better disperse external pressure and improve the compression resistance of the pipe. Moreover, the length of the bottom edge of the trapezoidal reinforcing rib 2 close to the pipe body 1 is greater than the length of the bottom edge away from the pipe body 1, and the size of the outer end of the reinforcing rib 2 is smaller than the size close to the pipe body 1, so that the end close to the pipe body 1 provides strong support to the whole. Moreover, the trapezoidal cross-section of the reinforcing rib 2 is isosceles trapezoidal, making the support more balanced. The length of the shorter bottom edge is not less than half of the length of the longer bottom edge, avoiding a large difference between the lengths of the shorter and longer bottom edges, which would cause the slope of the trapezoid to be inclined and reduce the support effect. The purpose of the above design is to ensure that the slope of the trapezoid is small and that the reinforcing rib 2 is a non-right-angle edge, which can better disperse external pressure and avoid stress concentration. Compared with the right-angle edge of the rectangular cross-section, the slope of the trapezoidal cross-section can uniformly transmit external pressure to the entire structure, thereby improving the compression strength.

[0034] On the basis of the above structure, the two corners of the reinforcing rib 2 away from the pipe body 1 and the corners of the cavity are circular structures. By setting the corners to be circular, the pressure bearing has a certain buffering effect, avoiding stress concentration caused by right angles and deformation and rupture.

[0035] In this embodiment, the annular cavity 3 is provided with a support 4 matching its shape. The support 4 is a hollow corrugated tube. In combination with Figure 4, specifically can adopt PP pipe material, its with annular cavity 3 side wall extrusion fixed, through in annular cavity 3 setting support 4, can support the whole reinforcing rib 2 inside, further enhance the stability of reinforcing rib 2, prevent deformation, and, the reinforcing rib 2 is close to and away from the two inner walls of pipeline main body 1 are set as the arc shape of the middle outward convex, that is, the inner wall of annular cavity 3 away from and close to pipeline main body 1 is curved towards support 4, can extrude limit with support 4, improve the stability of support 4 in annular cavity 3.

[0036] In addition, in combination with Figure 5 and Figure 6 , the present scheme is also designed in support 4 and strengthens the assembly 8, for further enhancing the supporting effect of reinforcing rib 2, and the strengthening assembly 8 is connected with the inner wall of support 4, wherein the strengthening assembly 8 includes the outer support end 81 with rectangular cross section and the inner support end 82 with polygonal cross section, and the outer support end 81 and the inner support end 82 are connected with each other, and the inner support end 82 and the outer support end 81 can be fixed with support 4 in the abutting manner, that is, the strengthening assembly 8 and support 4 are extruded and fixed, both of which are arranged in the form of annular in support 4, and in the present scheme, the outer support end 81 is solid, connected with the inner wall of support 4 away from the pipeline main body 1, and a plurality of stress relief holes 83 are arranged in the middle, which can release the stress generated by extrusion of reinforcing rib 2 and support 4 under stress, and the inner support end 82 is designed in triangular cross section and hollow in the present scheme, and the two ends thereof are connected with the side wall of support 4, which can support the side wall of reinforcing rib 2, and the end away from the outer support end 81 is connected with the inner wall of support 4, which cooperates with the connection of the outer support end 81 to support support 4 and improve the anti-deformation ability.

Claims

1. A high-strength, high-reinforcement pipe, characterized in that, It includes a pipe body (1) and several reinforcing ribs (2). The pipe body (1) is hollow, and the several reinforcing ribs (2) are arranged at equal intervals along the length of the pipe body (1) on the outer end face of the pipe body (1). The reinforcing rib (2) is a hollow structure with an annular cavity (3). The cross-sectional shape of the reinforcing rib (2) and the annular cavity (3) is trapezoidal. A support member (4) adapted to its shape is provided inside the annular cavity (3). The support member (4) is configured as a hollow corrugated tube, which is pressed and fixed to the side wall of the annular cavity (3).

2. The high-strength, high-reinforcement tube according to claim 1, characterized in that, A silicon core layer (5) is provided on the inner end face of the main body of the pipe (1).

3. The high-strength, high-reinforcement tube according to claim 1, characterized in that, The outer end face of the reinforcing rib (2) away from the main body of the pipe (1) is set to be an arc shape with the middle lower than the two ends.

4. The high-strength, high-reinforcement tube according to claim 1, characterized in that, The two inner walls of the reinforcing rib (2) near and away from the main body of the pipe (1) are both set in an arc shape that bulges outward from the middle.

5. The high-strength, high-reinforcement tube according to claim 1, characterized in that, The reinforcing rib (2) is connected to the main body of the pipe (1) by an annular base plate (6).

6. The high-strength, high-reinforcement tube according to claim 5, characterized in that, The annular base plate (6) has limiting protrusions (7) on both sides of the end face away from the main body of the pipe (1) that abut against the reinforcing rib (2), and the height is higher than the bottom of the reinforcing rib (2).

7. The high-strength, high-reinforcement tube according to claim 1, characterized in that, The length of the bottom edge of the trapezoidal reinforcing rib (2) is greater than the length of the bottom edge away from the main body of the pipe (1).

8. The high-strength, high-reinforcement tube according to claim 7, characterized in that, The cross-section of the reinforcing rib (2) is an isosceles trapezoid, and the shorter base length is not less than 1 / 2 of the longer base length.

9. The high-strength, high-reinforcement tube according to claim 8, characterized in that, The two corners of the reinforcing rib (2) away from the main body of the pipe (1) and the corners of the cavity are all rounded.

10. The high-strength, high-reinforcement tube according to claim 1, characterized in that, The support member (4) is provided with a reinforcing component (8) inside, and the reinforcing component (8) is connected to the inner wall of the support member (4).

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