CN218719402U

CN218719402U - Polygon double-walled bellows

Info

Publication number: CN218719402U
Application number: CN202222079879.6U
Authority: CN
Inventors: 戴天文; 何君
Original assignee: Anhui Yuanli Hi Tech Materials Co ltd
Current assignee: Anhui Yuanli Hi Tech Materials Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2023-03-24
Anticipated expiration: 2032-08-08

Abstract

The utility model relates to a bellows field specifically is a many prisms double-walled bellows. It comprises an inner layer and an outer layer; the inner layer is of a cylindrical structure; the outer layer comprises a plurality of wave crest portions and a plurality of wave trough portions which are integrally formed, the wave crest portions and the wave trough portions are alternately distributed, the wave trough portions are of circular structures, the wave trough portions are coaxially arranged on the outer circumferential surface of the inner layer, and the outline of the outer circumferential surface of each wave crest portion is polygonal. The utility model discloses can stably bury underground, be difficult for taking place angle deflection or position and rock.

Description

Polygon double-walled bellows

Technical Field

The utility model relates to a bellows field especially relates to a many prisms double-walled bellows.

Background

The drainage pipe comprises a corrugated pipe and other types of pipelines, mainly undertakes the drainage tasks of rainwater, sewage, farmland drainage and irrigation and the like, and is particularly used for water supply and drainage of municipal works, sewage plants, water purification plants, garbage dumps and the like; longitudinal and transverse drainage and water permeation of the highway; the back of various retaining walls and side ditches of the expressway are vertically and horizontally drained; draining water from underground tunnels and tunnels; draining water from the ground in the soil preparation process; slope water and soil conservation is developed on hilly land; drainage of golf courses, parks, sports grounds, and the like.

Common bellows generally include inlayer and skin, are gyration shape structure, and the structure is slick and sly, and two adjacent bellows are connected to accessible muffjoint structure, buries underground in-process underground at the bellows underground in-process, take place angle deflection or position easily and rock, probably lead to being connected the reduction of leakproofness with muffjoint structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that exists among the background art, provide a can stably bury underground, be difficult for taking place the many prisms double-walled bellows that angle deflection or position rocked.

The technical proposal of the utility model is a multi-prismatic double-wall corrugated pipe, which comprises an inner layer and an outer layer;

the inner layer is of a cylindrical structure;

the outer layer comprises a plurality of wave crest portions and a plurality of wave trough portions which are integrally formed, the wave crest portions and the wave trough portions are alternately distributed, the wave trough portions are of circular structures, the wave trough portions are coaxially arranged on the outer circumferential surface of the inner layer, and the outline of the outer circumferential surface of each wave crest portion is polygonal.

Preferably, the outer peripheral surface of the peak portion has a regular polygonal contour.

Preferably, the number of polygon sides is at least ten.

Preferably, the width of the wave crest part is gradually reduced along the radial direction of the inner layer away from the central axis, and the included angle between the axial side surface of the wave crest part along the inner layer and the radial direction of the inner layer is 5-8 degrees.

Preferably, an outer convex ring portion protruding outwards is arranged on the crest portion along the outline of the outer peripheral face, and the outer convex ring portion is arranged in parallel along the axial direction of the inner layer.

Preferably, the crest portion is provided with an inward concave groove along the profile of the outer peripheral surface, and the grooves are arranged in parallel along the axial direction of the inner layer.

Preferably, the groove is a groove a or a groove b, the cross-sectional profile of the groove a along the radial direction of the inner layer is rectangular, and the cross-sectional profile of the groove b along the radial direction of the inner layer is triangular.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model discloses can stably bury underground, be difficult for taking place angle deflection or position and rock. The outer outline of the wave crest part is polygonal, the existing sleeve connection structure can be used for connection, the adaptability is good, the corrugated pipe is buried underground, soil is filled in the wave trough part, the wave crest part is fully contacted with the soil, and the polygonal structure can maintain a stable position.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of the structure of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 5;

fig. 7 is a schematic structural diagram of a fourth embodiment of the present invention;

fig. 8 is an enlarged view of the structure at C in fig. 7.

Reference numerals: 1. an inner layer; 2. an outer layer; 21. a crest portion; 211. a convex ring part; 212. a groove a; 213. a groove b; 22. a wave trough portion.

Detailed Description

Example one

As shown in fig. 1 and 2, the present embodiment proposes a polygonal double-wall corrugated pipe, which includes an inner layer 1 and an outer layer 2; the inner layer 1 is of a cylindrical structure; the outer layer 2 comprises a plurality of crest portions 21 and a plurality of trough portions 22 which are integrally formed, the crest portions 21 and the trough portions 22 are alternately distributed, the trough portions 22 are of circular structures, the trough portions 22 are coaxially arranged on the outer circumferential surface of the inner layer 1, and the outline of the outer circumferential surface of the crest portions 21 is polygonal. The profile of the outer peripheral surface of the crest portion 21 is a regular polygon, so that the structure is more regular. The number of the polygonal sides is at least ten, the larger the number of the polygonal sides is, the closer to a circle, the more adjacent two corrugated pipes can be connected through the sleeve connecting structure in the prior art, a new sleeve connecting structure does not need to be additionally designed, the cost is saved, when the corrugated pipes are connected, the rubber rings can be pre-installed at the wave valley portions 22 and are in sealing connection with the sleeve connecting structure, and the sleeve connecting structure is tightly clamped at other wave valley portions 22 of the corrugated pipes, so that the connection firmness is ensured.

The width of the wave crest part 21 is gradually reduced along the radial direction of the inner layer 1 away from the central shaft, the included angle between the axial side surface of the wave crest part 21 along the inner layer 1 and the radial direction of the inner layer 1 is 5-8 degrees, and the production and the processing are convenient.

The embodiment can be stably embedded and is not easy to deflect in angle or shake in position. The outer contour of the wave crest part 21 is polygonal, the wave crest part 21 can be connected by using the existing sleeve connecting structure, the adaptability is good, soil is filled in the trough part 22 after the corrugated pipe is buried underground, the wave crest part 21 is fully contacted with the soil, and the polygonal structure can maintain a stable position.

Example two

As shown in fig. 3 and fig. 4, compared with the first embodiment, in the present embodiment, a convex ring portion 211 protruding outward is disposed on the crest portion 21 along the outer peripheral surface profile, and a plurality of convex ring portions 211 are disposed side by side along the axial direction of the inner layer 1.

In this embodiment, outer convex ring portion 211 can improve the structural strength of bellows, moreover, after burying the bellows underground, can also fill soil between outer convex ring portion 211, further improves the positional stability after burying underground.

EXAMPLE III

As shown in fig. 5 and fig. 6, compared with the first embodiment, in the present embodiment, the corrugated peak portion 21 is provided with a plurality of concave grooves along the outer peripheral surface profile, and the plurality of concave grooves are arranged side by side along the axial direction of the inner layer 1. The groove is a groove a212, and the cross-sectional profile of the groove a212 along the radial direction of the inner layer 1 is rectangular. After the corrugated pipe is buried, soil is filled in the trough part 22 and the rectangular groove a212, so that the position stability of the buried corrugated pipe can be effectively improved.

Example four

As shown in fig. 7 and 8, compared to the third embodiment, the corrugated pipe with polygonal double walls according to the present embodiment has grooves b213, and the cross-sectional profile of the grooves b213 along the radial direction of the inner layer 1 is triangular. Triangular groove b213 can more smoothly fill soil in, and groove b213 can further improve the position stability after the bellows is buried on the basis of filling soil in trough portion 22.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A polygonal double-walled corrugated pipe, comprising:

an inner layer (1) which is of cylindrical configuration;

the outer layer (2) comprises a plurality of wave crest portions (21) and a plurality of wave trough portions (22) which are integrally formed, the wave crest portions (21) and the wave trough portions (22) are alternately distributed, the wave trough portions (22) are of a circular ring-shaped structure, the wave trough portions (22) are coaxially arranged on the outer circumferential surface of the inner layer (1), and the outline of the outer circumferential surface of each wave crest portion (21) is polygonal; the wave crest part (21) is provided with a plurality of concave grooves along the outline of the outer peripheral surface, and the grooves are arranged side by side along the axial direction of the inner layer (1); the groove is a groove a (212) or a groove b (213), the cross section of the groove a (212) along the radial direction of the inner layer (1) is rectangular, and the cross section of the groove b (213) along the radial direction of the inner layer (1) is triangular.

2. A polygonal double-walled corrugated pipe according to claim 1, wherein the outer peripheral surface profile of the peak portion (21) is a regular polygon.

3. A multi-prismatic, double wall corrugated pipe according to claim 1 or 2, wherein the number of polygonal sides is at least ten.

4. A polygonal double wall corrugated pipe according to claim 1, wherein the width of the crest portion (21) is gradually decreased in a direction away from the central axis in a radial direction of the inner layer (1), and the angle between the side surface of the crest portion (21) in an axial direction of the inner layer (1) and the radial direction of the inner layer (1) is 5 to 8 °.