Double-wall corrugated pipe with reinforced structure

Abstract

The double-wall corrugated pipe comprises a pipe body, a winding pipe and reinforcing ribs, the cross section of the winding pipe is in a trapezoid shape, the bottom of the winding pipe is spirally bonded outside the pipe body along the pipe body, the reinforcing ribs are made of metal materials and spirally extend and are embedded in the top of the winding pipe, the cross section of each reinforcing rib is in a shape like a Chinese character'ji ', and the cross section of each reinforcing rib is in a shape like a Chinese character'ji'. The left side and the right side of the reinforcing rib extend to the waist portion of the winding pipe. According to the double-wall corrugated pipe with the reinforced structure, the structure is simpler, the reinforcing ribs are embedded in the top, and the top of the winding pipe is prevented from being squeezed to sink.

Description

TECHNICAL FIELD

[0001] The utility model relates to structural double -walled corrugated pipe technical field especially relates to a reinforced structure double -walled corrugated pipe. BACKGROUND

[0002] The existing structural double -walled corrugated pipe includes the pipe body, and the winding pipe is spirally wound on the pipe body, because the corrugated pipe is mainly buried underground when using, is affected by the earth pressure, and the top of the winding pipe is easily extruded and sunken.

[0003] Therefore, as shown in the patent with the application number CN202121021278.9, a support structure is arranged in the winding pipe, and the support structure specifically includes a support ring, a first reinforcing rib, a second reinforcing rib and a third reinforcing rib, which support the top, left side and right side of the winding pipe respectively supported by the first reinforcing rib, the second reinforcing rib and the third rib, the support structure can prevent the top of the winding pipe from being extruded and sunken, but the structure is complex and inconvenient for production. UTILITY MODEL CONTENT

[0004] The utility model discloses to solve the corrugated pipe structure complex's shortcoming of existing, proposes a reinforced structure double -walled corrugated pipe, and the structure is simpler, and the top is embedded with reinforcing rib, prevents the top of the winding pipe from being extruded and sunken.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A reinforced structure double -walled corrugated pipe, including pipe body, winding pipe and reinforcing rib, the cross section of winding pipe is trapezoidal, and the bottom of winding pipe is spirally adhered to the outside of pipe body, the reinforcing rib is metal material, and is spirally extended and embedded in the top of winding pipe, the cross section of reinforcing rib is a few Chinese characters, the middle part of reinforcing rib is protruded away from pipe body, and the left and right sides of reinforcing rib extend to the waist of winding pipe.

[0007] Through the above setting, first, the embedded metal reinforcing rib is used to increase the rigidity of the top of the winding pipe, prevent the top of the winding pipe from collapsing, and the structure is simpler, second, the cross section of reinforcing rib is a few Chinese characters, and the rigidity is better, the top of winding pipe is not easy to deform, and the contact area between reinforcing rib and winding pipe is increased, and reinforcing rib and winding pipe are not easy to separate.

[0008] Further, the thickness of the waist of the winding pipe is t, the thickness of the top of the winding pipe on the outside of the reinforcing rib is t, the thickness of the top of the winding pipe on the inside of the reinforcing rib is t3, the thickness of the reinforcing rib is t4, and t>t+t3+t4.

[0009] Through the above setting, the wall thickness of the top of the winding pipe is optimized.

[0010] Further, t

[0011] Furthermore, the reinforcing rib includes a middle section, with the left and right sides of the middle section bent towards the tube to form an inclined section, and the side of the inclined section away from the middle section bent to form an extension section that extends parallel to the middle section and extends into the waist of the winding tube.

[0012] Furthermore, an inclined surface is provided on the inner side of the winding tube between its top and waist, and the inclined surface is arranged parallel to the inclined part of the reinforcing rib.

[0013] Furthermore, the corrugated pipe also includes longitudinal ribs integrally extruded with the wound pipe, and the longitudinal ribs are vertically arranged between the bottom and top of the wound pipe.

[0014] The above settings further enhance the overall ring stiffness of the corrugated pipe, and at the same time, the top of the wound pipe is less likely to sag under pressure.

[0015] Furthermore, multiple spiral channels are provided within the longitudinal ribs.

[0016] By implementing the above settings, the amount of material used for longitudinal ribs can be reduced, thereby saving the overall material used for the corrugated pipe.

[0017] Furthermore, the corrugated pipe also includes a first horizontal rib and a second horizontal rib integrally extruded with the wound pipe. The first horizontal rib and the second horizontal rib are vertically fixedly connected to opposite sides of the longitudinal rib. The side of the first horizontal rib and the second horizontal rib away from the longitudinal rib is fixedly connected to the waist of the wound pipe. The first horizontal rib and the second horizontal rib are staggered vertically.

[0018] The above settings increase the stability of the longitudinal reinforcement and prevent it from bending laterally under pressure. Attached Figure Description

[0019] Figure 1 This is a partial cross-sectional view of the bellows in an embodiment.

[0020] Figure 2 for Figure 1 Enlarged view of point A. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] like Figures 1 to 2 As shown, a reinforced double-wall corrugated pipe includes a pipe body 3, a spiral pipe 4, and reinforcing ribs 5. The cross-section of the spiral pipe 4 is trapezoidal, and the bottom of the spiral pipe 4 is spirally bonded to the outside of the pipe body 3. The reinforcing ribs 5 are made of metal and spirally extend into the top of the spiral pipe 4. The cross-section of the reinforcing ribs 5 is Z-shaped, and the middle part of the reinforcing ribs 5 protrudes away from the pipe body 3. The left and right sides of the reinforcing ribs 5 extend to the waist of the spiral pipe 4.

[0023] Through the above setting, first, the embedded metal reinforcing rib 5 is adopted to increase the top stiffness of the winding pipe 4 to prevent the top of the winding pipe 4 from collapsing, and the structure is simpler; second, the cross section of the reinforcing rib 5 is a few characters, the stiffness is better, the top of the winding pipe 4 is not easy to deform, and the contact area between the reinforcing rib 5 and the winding pipe 4 is increased, and the reinforcing rib 5 and the winding pipe 4 are not easy to separate.

[0024] The pipe body 3 and the winding pipe 4 of the application can refer to the existing corrugated pipe; when producing and processing the corrugated pipe, the extruder extrudes the winding pipe 4 outside the metal reinforcing rib 5, the top of the winding pipe 4 wraps the reinforcing rib 5, the reinforcing rib 5 is embedded in the top of the winding pipe 4, which is convenient for processing and the structure is simpler, and then the winding pipe 4 is spirally wound on the pipe body 3 and fixed to form the corrugated pipe of the application; the cross section of the winding pipe 4 of the application is specifically an isosceles trapezoid, the bottom of the winding pipe 4 is adhered to the pipe body 3 by professional glue, the top and the bottom of the winding pipe 4 are parallel, and the top faces away from the pipe body 3, and the part between the top and the bottom is the waist of the winding pipe 4; the left and right sides of the reinforcing rib 5 of the application extend into the waist of the winding pipe 4, so that the reinforcing rib 5 covers the entire top of the winding pipe 4 to prevent the top of the winding pipe 4 from sinking under pressure; in addition, the cross section of the reinforcing rib 5 is basically a few characters, the middle part is raised away from the pipe body 3, which further improves the stiffness of the winding pipe 4; in addition, compared with the flat plate type reinforcing rib 5 with the same width, the reinforcing rib 5 with the cross section of a few characters has a larger surface area, and the contact area between the reinforcing rib 5 and the winding pipe 4 is also larger, so that the reinforcing rib 5 and the winding pipe 4 are not easy to separate.

[0025] As an implementation manner, the thickness of the waist of the winding pipe 4 is t1, the thickness of the top of the winding pipe 4 outside the reinforcing rib 5 is t2, the thickness of the top of the winding pipe 4 inside the reinforcing rib 5 is t3, and the thickness of the reinforcing rib 5 is t4, t1>t2+t3+t4.

[0026] Through the above setting, the wall thickness of the top of the winding pipe 4 is optimized.

[0027] The material of the winding pipe 4 of the application is specifically polypropylene, and the material of the reinforcing rib 5 is metal, which has a higher stiffness than the material of the winding pipe 4; in the traditional winding pipe, the thickness of the waist is equal to the thickness of the top; and in the winding pipe 4 of the application, the top of the winding pipe 4 is embedded with the metal reinforcing rib 5, so the thickness of the top of the winding pipe 4 can be appropriately reduced, as shown in FIG. 4. Figure 2

[0028] As an implementation manner, t2<t3.

[0029] ​The reinforcing rib 5 of the present application is made of metal material and has better wear resistance, so the thickness of the top of the winding pipe 4 outside the reinforcing rib 5 can be appropriately reduced. Even if the outside of the winding pipe 4 is damaged by wear and tear with soil and rocks, the reinforcing rib 5 can prevent the soil and rocks from continuing to wear inward and prevent the winding pipe 4 from being excessively worn due to the good wear resistance of the reinforcing rib 5.

[0030] As an implementation manner, the reinforcing rib 5 includes a middle part 51, the left and right sides of the middle part 51 are bent to form inclined parts 52 towards the pipe body 3, the side away from the middle part 51 of the inclined part 52 is bent to form an extension part 53 extending in parallel to the middle part 51, and the extension part 53 extends into the waist part of the winding pipe 4.

[0031] The middle part 51 of the reinforcing rib 5 of the present application is arranged in parallel to the pipe body 3, the inclined part 52 is substantially at a 45-degree angle with the middle part 51, the inclined part 52 extends outward, the extension part 53 is arranged in parallel to the middle part 51, and the extension part 53 extends into the waist part of the winding pipe 4.

[0032] As an implementation manner, an inclined surface 6 is arranged between the top and the waist part of the winding pipe 4, and the inclined surface 6 is arranged in parallel to the inclined part 52 of the reinforcing rib 5.

[0033] As an implementation manner, the corrugated pipe further includes a longitudinal rib 7 integrally extruded with the winding pipe 4, and the longitudinal rib 7 is arranged vertically between the bottom and the top of the winding pipe 4.

[0034] Through the above arrangement, the overall ring stiffness of the corrugated pipe is further improved, and at the same time, the top of the winding pipe 4 is also less likely to be depressed under pressure.

[0035] As an implementation manner, a plurality of spiral holes 8 are arranged in the longitudinal rib 7.

[0036] Through the above arrangement, the material of the longitudinal rib 7 can be reduced, thereby saving the overall material of the corrugated pipe.

[0037] The cross section of the hole 8 of the present application is circular, and a plurality of holes are arranged uniformly from the top to the bottom of the winding pipe 4. The left and right sides of the longitudinal rib 7 are corrugated, and the cross section of the longitudinal rib 7 is similar to a pipe arrangement structure formed by a plurality of circular pipes arranged.

[0038] As an implementation manner, the corrugated pipe further includes a first horizontal rib 9 and a second horizontal rib 10 integrally extruded with the winding pipe 4, the first horizontal rib 9 and the second horizontal rib 10 are fixedly connected to the opposite sides of the longitudinal rib 7, the side away from the longitudinal rib 7 of the first horizontal rib 9 and the second horizontal rib 10 is fixedly connected to the waist part of the winding pipe 4, and the first horizontal rib 9 and the second horizontal rib 10 are staggered upward and downward.

[0039] Through the above arrangement, the stability of the longitudinal rib 7 is increased, and the longitudinal rib 7 is prevented from being laterally bent after being pressed.

[0040] It should be understood that all of these improvements and changes that can be made to the above-described explanation are intended to be within the scope of the present application as defined in the appended claims.

Claims

1. A reinforced structural double-wall corrugated pipe, characterized by, It includes a tube body, a spiral tube, and a reinforcing rib. The spiral tube has a trapezoidal cross-section. The bottom of the spiral tube is spirally bonded to the outside of the tube body. The reinforcing rib is made of metal and spirally extends into the top of the spiral tube. The reinforcing rib has a Z-shaped cross-section. The middle part of the reinforcing rib protrudes away from the tube body. The left and right sides of the reinforcing rib extend to the waist of the spiral tube.

2. A structurally reinforced double-walled corrugated pipe according to claim 1, characterized in that The thickness of the waist of the spiral tube is t1, the thickness of the top of the spiral tube outside the reinforcing rib is t2, the thickness of the top of the spiral tube inside the reinforcing rib is t3, and the thickness of the reinforcing rib is t4, where t1 > t2 + t3 + t4.

3. A structurally reinforced double-walled bellows according to claim 2, characterized in that t2 <t3。 4. A structurally reinforced double-walled bellows according to claim 1, characterized in that The reinforcing rib includes a middle section, the left and right sides of which are bent toward the tube to form inclined sections, and the side of the inclined section away from the middle section is bent to form an extension section that extends parallel to the middle section and extends into the waist of the winding tube.

5. A structurally reinforced dual-wall bellows according to claim 4, wherein, The inner side of the winding tube is provided with an inclined surface between its top and waist, and the inclined surface is arranged parallel to the inclined portion of the reinforcing rib.

6. A structurally reinforced dual-wall bellows according to claim 1, wherein The corrugated pipe also includes longitudinal ribs integrally extruded with the wound pipe, the longitudinal ribs being vertically arranged between the bottom and top of the wound pipe.

7. A structurally reinforced dual-wall bellows according to claim 6, wherein Multiple spiral channels are provided inside the longitudinal ribs.

8. A structurally reinforced dual-wall bellows according to claim 6, wherein The corrugated pipe also includes a first horizontal rib and a second horizontal rib integrally extruded with the winding pipe. The first horizontal rib and the second horizontal rib are vertically fixedly connected to opposite sides of the longitudinal rib. The side of the first horizontal rib and the second horizontal rib away from the longitudinal rib is fixedly connected to the waist of the winding pipe. The first horizontal rib and the second horizontal rib are staggered vertically.

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