CN216715208U

CN216715208U - Special-shaped corrugated pipe

Info

Publication number: CN216715208U
Application number: CN202122905636.9U
Authority: CN
Inventors: 蔡建明; 何柿桦; 周启友; 彭龙; 陈浩; 钟灿斌
Original assignee: Guangxi 51 Pipe Industry Co ltd
Current assignee: Guangxi 51 Pipe Industry Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-06-10
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a special-shaped corrugated pipe, belongs to the field of corrugated pipes, and solves the problem that the existing corrugated pipe is low in service life due to insufficient strength. The special-shaped corrugated pipe comprises a plurality of corrugated convex pipe sections and corrugated concave pipe sections, wherein the corrugated convex pipe sections and the corrugated concave pipe sections are alternately connected, and first convex parts are arranged on two sides of each corrugated convex pipe section; and second convex parts are arranged on two sides of the corrugated concave pipe section. The special-shaped corrugated pipe can effectively improve the structural strength of the corrugated pipe and prolong the service life of the corrugated pipe.

Description

Special-shaped corrugated pipe

Technical Field

The utility model relates to a corrugated pipe, in particular to a special-shaped corrugated pipe.

Background

The corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction, is a cylindrical thin-wall corrugated shell with a plurality of transverse corrugations, has elasticity, and can generate displacement under the action of pressure, axial force, transverse force or bending moment, wherein the special-shaped corrugated pipe is a corrugated pipe with a non-circular section, and is mostly a plastic pipe. In the existing special-shaped corrugated pipe, the wall thickness is uniform, so that the problem that the stress strength of the whole corrugated pipe is insufficient is easily caused, and the service life of the corrugated pipe is shortened. Thus, there remains a need for further improvements in existing bellows.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide the special-shaped corrugated pipe aiming at the defects in the prior art, so that the structural strength of the corrugated pipe can be effectively improved, and the service life of the corrugated pipe can be prolonged.

The technical scheme of the utility model is as follows: a special-shaped corrugated pipe comprises a plurality of corrugated convex pipe sections and corrugated concave pipe sections, wherein the corrugated convex pipe sections and the corrugated concave pipe sections are alternately connected in a linking manner, and first convex parts are arranged on two sides of each corrugated convex pipe section; and second convex parts are arranged on two sides of the corrugated concave pipe section.

As a further improvement, the first convex parts are positioned on two symmetrical sides of the corrugated convex pipe section, and the first convex parts are positioned in the middle of the two sides of the corrugated convex pipe section.

Further, the first convex part is arranged convexly towards the inner side of the corrugated convex pipe section.

Furthermore, the second convex parts are positioned at two symmetrical sides of the corrugated concave pipe section, and the second convex parts are positioned in the middle of the two sides of the corrugated concave pipe section.

Further, the second convex part is convexly arranged towards the outer side of the corrugated concave pipe section.

Furthermore, the shape of the first protruding part is the same as that of the second protruding part, and the first protruding part and the second protruding part are protruding parts which gradually protrude from the upper side and the lower side of the corrugated protruding pipe section and the corrugated concave pipe section to the middle.

Further, the width of the first convex part is the same as that of the corrugated convex pipe section, and the width of the second convex part is the same as that of the corrugated concave pipe section.

Furthermore, the sections of the corrugated convex pipe sections and the corrugated concave pipe sections are both in a trapezoidal structure.

Furthermore, four corners of the corrugated pipe protruding pipe section and the corrugated pipe concave section are provided with arc chamfers, and the radius of the arc chamfers corresponding to the corrugated pipe protruding section is larger than that of the arc chamfers corresponding to the corrugated pipe concave section.

Furthermore, the radius of the corresponding arc chamfer at the upper side of the corrugated convex pipe section is larger than that of the corresponding arc chamfer at the lower side of the corrugated convex pipe section; correspondingly, the radius of the arc chamfer corresponding to the upper side of the corrugated concave pipe section is larger than that of the arc chamfer corresponding to the lower side of the corrugated concave pipe section.

Advantageous effects

Compared with the prior art, the utility model has the following advantages:

according to the special-shaped corrugated pipe, the protruding parts are respectively arranged on the two sides of the corrugated protruding pipe section and the corrugated concave pipe section, so that the thickness of the two side walls of the whole corrugated pipe is thickened, the structural strength of the corrugated pipe can be effectively improved, and the service life of the corrugated pipe is prolonged.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a side view of a corrugated, embossed pipe section of the present invention;

FIG. 3 is a side view of the corrugated pipe section of the present invention.

Wherein: 1-corrugated convex pipe section, 2-corrugated concave pipe section, 3-first convex part, 4-second convex part and 5-chamfer.

Detailed Description

The utility model will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-3, the special-shaped corrugated pipe of the present invention includes a plurality of corrugated convex pipe sections 1 and corrugated concave pipe sections 2, wherein the cross-sectional dimension of the corrugated convex pipe sections 1 is greater than the cross-sectional dimension of the corrugated concave pipe sections 2, the plurality of corrugated convex pipe sections 1 are alternately connected with the corrugated concave pipe sections 2 to form a strip-shaped corrugated pipe, and first convex portions 3 are disposed on two sides of the corrugated convex pipe sections 1 to make the thickness of the two sides of the corrugated convex pipe sections 1 greater than the thickness of other portions; and second convex parts 4 are arranged on two sides of the corrugated concave pipe section 2, so that the thickness of the two sides of the corrugated concave pipe section 2 is greater than that of other parts.

According to the special-shaped corrugated pipe, the two sides of the corrugated convex pipe section 1 and the corrugated concave pipe section 2 are respectively provided with the convex parts, so that the two side walls of the whole corrugated pipe are thickened, the structural strength of the corrugated pipe can be effectively improved, and the service life of the corrugated pipe is prolonged.

Preferably, the first protrusions 3 are located on two symmetrical sides of the corrugated bulged tube section 1, and the first protrusions 3 are located in the middle of two sides of the corrugated bulged tube section 1. Similarly, the second convex portions 4 are located at two symmetrical sides of the corrugated concave pipe section 2, and the second convex portions 4 are located at the middle parts of two sides of the corrugated concave pipe section 2.

In this embodiment, when the top surface of the whole bellows is stressed, the force is transmitted to the middle first protruding portion 3 and the middle second protruding portion 4 through the chamfers, and the wall thickness is increased due to the arrangement of the protruding portions, so that the stress of the whole bellows is maximized.

Preferably, the first bulges 3 are arranged convexly towards the inside of the corrugated and bulged tube section 1. Likewise, the second raised portion 4 is arranged raised towards the outside of the corrugated box section 2.

In this embodiment, the protruding directions of the first protruding portion 3 and the second protruding portion 4 are opposite, on one hand, the convenience of product molding processing and mold processing design is considered, which is beneficial to product molding, and on the other hand, in practical application, the two opposite protruding portions can effectively bear the pressure from the top of the corrugated pipe, so that the effect of strong support is achieved.

Preferably, the shape of the first convex portion 3 is the same as that of the second convex portion 4, and the first convex portion 3 and the second convex portion 4 are convex portions gradually convex from the upper side and the lower side of the corrugated convex pipe section 1 and the corrugated concave pipe section 2 to the middle.

The bellying in this embodiment from upper and lower two sides to intermediate position thickening arch gradually, the dynamics of bearing after the atress is bigger, and anti deformability is stronger, more is favorable to the shaping of product simultaneously.

Preferably, the width of the first convex part 3 is the same as that of the corrugated convex pipe section 1, and the width of the second convex part 4 is the same as that of the corrugated concave pipe section 2, so that the stress on the whole stress surface is more uniform.

Preferably, the cross sections of the corrugated convex pipe section 1 and the corrugated concave pipe section 2 are in a ladder-shaped structure.

In the embodiment, the cross section of the whole corrugated pipe is of a trapezoid structure, the load resultant force effect is larger, the corrugated pipe has obvious advantages when being used for producing the wound PE pipe, the compression resistance is obviously improved, and the ring rigidity and the ring flexibility of the product are improved.

Preferably, the four corners of the corrugated pipe protruding pipe section 1 and the corrugated pipe recessed section 2 are provided with arc chamfers 5, and the radius of the arc chamfers 5 corresponding to the corrugated pipe protruding pipe section 1 is larger than the radius of the arc chamfers 5 corresponding to the corrugated pipe recessed section 2. Furthermore, the radius of the corresponding arc chamfer 5 at the upper side of the corrugated bulged pipe section 1 is larger than the radius of the corresponding arc chamfer 5 at the lower side of the corrugated bulged pipe section 1; correspondingly, the radius of the arc chamfer 5 corresponding to the upper side of the corrugated concave pipe section 2 is larger than the radius of the arc chamfer 5 corresponding to the lower side of the corrugated concave pipe section 2. Through the structure size of reasonable optimization chamfer, make things convenient for follow-up product mould drawing of patterns, also make whole trapezoidal bellows bearing capacity obtain fine promotion simultaneously, the product of producing according to above-mentioned design is used on buried PE winding pipe, can reduce the material effectively, improves the ring rigidity and the ring compliance of product.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various changes and modifications without departing from the structure of the utility model, which will not affect the effect of the utility model and the practicability of the patent.

Claims

1. A special-shaped corrugated pipe comprises a plurality of corrugated convex pipe sections (1) and corrugated concave pipe sections (2), wherein the corrugated convex pipe sections (1) and the corrugated concave pipe sections (2) are alternately connected in a linking manner, and the special-shaped corrugated pipe is characterized in that first convex parts (3) are arranged on two sides of each corrugated convex pipe section (1); and second convex parts (4) are arranged on two sides of the corrugated concave pipe section (2).

2. A corrugated tubing according to claim 1, wherein the first protrusions (3) are located on two symmetrical sides of the corrugated convex tube section (1), and the first protrusions (3) are located in the middle of two sides of the corrugated convex tube section (1).

3. Profile corrugated pipe according to claim 2, characterised in that the first bulges (3) are arranged convexly towards the inside of the corrugated bulged tubular section (1).

4. A corrugated pipe profile according to claim 1, wherein the second protrusions (4) are located on two symmetrical sides of the corrugated concave pipe section (2), and the second protrusions (4) are located in the middle of two sides of the corrugated concave pipe section (2).

5. A corrugated tubing profile according to claim 4, wherein the second elevations (4) are arranged convexly towards the outside of the corrugated valley section (2).

6. The corrugated pipe according to claim 1, wherein the first protrusion (3) and the second protrusion (4) have the same shape, and the first protrusion (3) and the second protrusion (4) are both protrusions gradually protruding from the upper side and the lower side of the corrugated convex pipe section (1) and the corrugated concave pipe section (2) to the middle.

7. Corrugated tubing according to claim 1, wherein the first elevations (3) have the same width as the corrugated convex tube section (1) and the second elevations (4) have the same width as the corrugated concave tube section (2).

8. The corrugated pipe according to any one of claims 1 to 7, wherein the corrugated convex pipe sections (1) and the corrugated concave pipe sections (2) are in a trapezoidal structure in cross section.

9. The special-shaped corrugated pipe as claimed in claim 8, wherein the four corners of the corrugated convex pipe section (1) and the corrugated concave pipe section (2) are provided with circular arc chamfers (5), and the radius of the circular arc chamfers (5) corresponding to the corrugated convex pipe section (1) is larger than the radius of the circular arc chamfers (5) corresponding to the corrugated concave pipe section (2).

10. The corrugated pipe profile as claimed in claim 9, wherein the radius of the corresponding circular arc chamfer (5) on the upper side of the corrugated bulged pipe section (1) is larger than the radius of the corresponding circular arc chamfer (5) on the lower side of the corrugated bulged pipe section (1); correspondingly, the radius of the arc chamfer (5) corresponding to the upper side of the corrugated concave pipe section (2) is larger than that of the arc chamfer (5) corresponding to the lower side of the corrugated concave pipe section (2).