Double-wall corrugated pipe for municipal engineering

Abstract

The utility model discloses a double-wall corrugated pipe for municipal engineering, which comprises a straight inner pipe and a corrugated outer pipe sleeved outside the straight inner pipe, a plurality of outer ribs are arranged at positions corresponding to wave troughs outside the corrugated outer pipe, and a plurality of inner ribs are arranged at positions corresponding to wave crests inside the corrugated outer pipe and between the straight inner pipe. The outer ribs are arranged in the outer wave troughs of the corrugated outer pipe, the inner ribs are arranged between the straight inner pipe and the inner wave crests of the corrugated outer pipe, and the outer diameter strips and the inner ribs are arranged at equal intervals in the circumferential direction and the axial direction of the straight inner pipe respectively and are arranged in a staggered mode. The purpose that the double-wall corrugated pipe is supported and reinforced in all directions in the circumferential direction and the axial direction is achieved, the pressure resistance and the torsion resistance are improved, the structural strength is comprehensively improved, and the problem that an existing double-wall corrugated pipe is prone to slight damage due to the fact that the bending angle is difficult to control within the standard in the municipal engineering construction process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -walled corrugated pipe technical field, specifically is a municipal engineering with double -walled corrugated pipe. BACKGROUND

[0002] Double -walled corrugated pipe is a new light pipe with annular structure outer wall and smooth structure inner wall, and is widely used in water supply and drainage and pollution discharge in municipal engineering.

[0003] The existing double -walled corrugated pipe structure is simple, and straight inner tube and corrugated outer tube are directly hot melt welded, and the two are supported and restrained each other, and the structural strength is embodied. However, in the municipal engineering construction process, paving often encounters hoisting, handling, transfer and other situations, and long pipeline is easy to bend, but there are relevant regulations, and the bending angle needs to be controlled within 5°, otherwise the pipeline is easy to be damaged, but the construction site is crowded, and it is difficult to strictly and completely follow the standard, and slight damage is also easy to occur, and because it does not affect use, it is not paid attention to, in view of the above reasons, and in order to solve the problem from the source, the municipal engineering double -walled corrugated pipe with higher structural strength is designed. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a municipal engineering double -walled corrugated pipe for solving the problem that the existing double -walled corrugated pipe is difficult to control the bending angle within the standard in the municipal engineering construction process.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A municipal engineering double -walled corrugated pipe, including straight inner tube and the corrugated outer tube of the wave trough of the corrugated outer tube outside straight inner tube is set up multiple outer muscle strips, and the wave peak inside the corrugated outer tube is set up multiple inner muscle strips between straight inner tube.

[0007] Preferably, multiple outer muscle strips are arranged axially on the outside of the corrugated outer tube, and multiple outer muscle strips are arranged equidistantly in the circumferential direction in the wave trough on the outside of the corrugated outer tube.

[0008] Preferably, multiple inner muscle strips are arranged axially between the corrugated outer tube and the straight inner tube, and multiple inner muscle strips are arranged equidistantly in the circumferential direction in the wave peak inside the corrugated outer tube.

[0009] Preferably, the outer muscle strips and the inner muscle strips are arranged in a staggered manner.

[0010] Preferably, the number of outer muscle strips and inner muscle strips is the same, and the included angle of the corresponding center between any adjacent outer muscle strips and inner muscle strips is equal.

[0011] Preferably, the outer rib is arranged at the bottom of the valleys outside the corrugated outer pipe, and the height of the outer rib is less than the height difference between the peaks and valleys outside the corrugated outer pipe.

[0012] Preferably, the outer rib is arranged with a through hole at the position corresponding to the bottom of the valleys outside the corrugated outer pipe.

[0013] Preferably, the height of the inner rib is equal to the distance between the peaks inside the corrugated outer pipe and the straight inner pipe.

[0014] Preferably, the inner rib is arranged with a gas hole at the position close to the straight inner pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a double-wall corrugated pipe with supporting and reinforcing function, which comprises a straight inner pipe and a corrugated outer pipe arranged outside the straight inner pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the front view of the utility model;

[0019] Figure 3 It is the utility model Figure 2 the section view of A-A;

[0020] Figure 4 It is the utility model Figure 2 the section view of B-B.

[0021] In the drawing: 1, straight inner pipe;2, corrugated outer pipe;3, outer rib;4, inner rib;5, through hole;6, gas hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] AsFigures 1-4 The utility model provides a technical scheme: a double-wall corrugated pipe for municipal engineering, including straight inner tube 1 and the corrugated outer tube 2 of the wave trough position of the wave trough of the outside of straight inner tube 1 is provided with a plurality of outer muscle strip 3, the wave crest position of the inside of corrugated outer tube 2 is between straight inner tube 1 and is provided with a plurality of inner muscle strip 4, corrugated outer tube 2, outer muscle strip 3 and inner muscle strip 4 are integrally injection moulded structure, and straight inner tube 1 and corrugated outer tube 2 are hot melt welding integrated structure.

[0024] A plurality of outer muscle strips 3 are arranged axially outside the corrugated outer tube 2, and a plurality of outer muscle strips 3 are arranged equidistantly in the circumferential direction inside the wave trough outside the corrugated outer tube 2, a plurality of inner muscle strips 4 are arranged axially between the corrugated outer tube 2 and the straight inner tube 1, and a plurality of inner muscle strips 4 are arranged equidistantly in the circumferential direction inside the wave crest of the corrugated outer tube 2. The outer muscle strip 3 and the inner muscle strip 4 play a role in axial support and circumferential reinforcement, improve the axial support force and the tension, improve the overall structural strength, and improve the circumferential torsional strength.

[0025] The outer muscle strip 3 and the inner muscle strip 4 are arranged in a staggered manner, the number of the outer muscle strip 3 and the inner muscle strip 4 is the same, and the corresponding central angle between any adjacent outer muscle strip 3 and inner muscle strip 4 is equal, the outer muscle strip 3 and the inner muscle strip 4 are uniformly distributed in the circumferential direction and the axial direction, and the structural strength of each direction and part is improved.

[0026] The outer muscle strip 3 is arranged at the bottom of the wave trough outside the corrugated outer tube 2, the height of the outer muscle strip 3 is less than the height difference between the wave crest and the wave trough outside the corrugated outer tube 2, and the outer muscle strip 3 is provided with a through hole 5 at the position corresponding to the bottom of the wave trough outside the corrugated outer tube 2, so as to reduce the amount of raw materials and the overall weight.

[0027] The height of the inner muscle strip 4 is equal to the distance between the wave crest inside the corrugated outer tube 2 and the straight inner tube 1, and the inner muscle strip 4 is provided with an air hole 6 at a position close to the straight inner tube 1, so as to realize the mutual ventilation between a plurality of regions separated by the inner muscle strip 4 in the same wave crest inside the straight inner tube 1 and the corrugated outer tube 3, balance the air pressure, and avoid the separation of the straight inner tube 1 and the corrugated outer tube 3 caused by pipe expansion.

Claims

1. A double-wall corrugated pipe for municipal works, comprising a straight inner pipe (1) and a corrugated outer pipe (2) which is fitted externally to the straight inner pipe (1), characterized in that: A plurality of outer ribs (3) are arranged on the corresponding positions of the valleys outside the corrugated outer tube (2), and a plurality of inner ribs (4) are arranged between the straight inner tubes (1) on the corresponding positions of the peaks inside the corrugated outer tube (2), the outer ribs (3) and the inner ribs (4) are arranged staggeredly, and the outer ribs (3) are provided with through holes (5) on the positions corresponding to the bottoms of the valleys outside the corrugated outer tube (2).

2. A dual wall corrugated pipe for municipal engineering according to claim 1, characterized in that: The plurality of outer ribs (3) are arranged axially outside the corrugated outer tube (2), and the plurality of outer ribs (3) are arranged equidistantly in the circumferential direction inside the valleys outside the corrugated outer tube (2).

3. The dual wall corrugated pipe for municipal works of claim 1, wherein: The plurality of inner ribs (4) are arranged axially between the corrugated outer tube (2) and the straight inner tube (1), and the plurality of inner ribs (4) are arranged equidistantly in the circumferential direction inside the peaks inside the corrugated outer tube (2).

4. The dual wall corrugated pipe for municipal engineering according to claim 1, characterized in that: The number of the outer ribs (3) is equal to that of the inner ribs (4), and the included angle of the centers corresponding to any adjacent outer rib (3) and inner rib (4) is equal.

5. The dual wall corrugated pipe according to claim 1, wherein: The outer ribs (3) are arranged at the bottoms of the valleys outside the corrugated outer tube (2), and the height of the outer ribs (3) is less than the height difference between the peaks and the valleys outside the corrugated outer tube (2).

6. A dual wall corrugated pipe for municipal engineering according to claim 1, characterized in that: The height of the inner ribs (4) is equal to the distance between the peaks inside the corrugated outer tube (2) and the straight inner tube (1).

7. A dual wall corrugated pipe for municipal engineering according to claim 1, characterized in that: Air holes (6) are arranged on the inner ribs (4) close to the straight inner tube (1).

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