CN210739597U

CN210739597U - Hollow wall steel rib spiral corrugated pipe

Info

Publication number: CN210739597U
Application number: CN201920831349.8U
Authority: CN
Inventors: 李玉波
Original assignee: Shenzhen City Double Happiness Pipe Industry Co Ltd
Current assignee: Shenzhen City Double Happiness Pipe Industry Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-06-12
Anticipated expiration: 2029-06-03

Abstract

The utility model provides a well cavity wall steel rib helical bellows makes by cavity steel rib area spiral winding, and cavity steel rib area includes slab band body and steel rib, and a plurality of through-holes that the interval set up are seted up to the inside of slab band body, and the length direction of slab band body is followed to the through-hole extends, and the slab band body includes two first joint portions, and two first joint portions outwards stretch out from the relative both sides of slab band body to bond each other through the sol, the steel rib is fixed in the slab band body on the surface, and extend along the length direction of slab band body. The utility model discloses a set up the steel rib on the surface of slab band body and strengthen ring rigidity, through set up a plurality of through-holes in that the slab band body is inside, provide sufficient expend with heat and contract with cold surplus for the slab band body to the mode through two first joint portion joints replaces traditional overlap joint mode, thereby has solved bellows inner wall list thin and ring rigidity is insufficient effectively, receives the influence of climate change great, the not firm technical problem of overlap joint between two adjacent slab band parts inadequately.

Description

Hollow wall steel rib spiral corrugated pipe

Technical Field

The utility model belongs to the technical field of drainage pipe, more specifically say, relate to a cavity wall steel rib helical bellows.

Background

At present, the pipeline used in the urban drainage and sewage pipe network is generally a wall pipe (corrugated pipe for short) with a corrugated winding structure of which the inner wall is a single-layer wall and the outer wall is a single-layer wall, and the pipe is made of a plate strip made of high-density polyethylene (HDPE) materials in a spiral winding and bonding mode, and has the advantages of strong flexibility, corrosion resistance, wear resistance and the like. However, the corrugated pipe made of pure high-density polyethylene has a thin inner wall and insufficient ring stiffness, is greatly influenced by climate change, and is easily sealed at the lap joint between two adjacent plate strips, so that the corrugated pipe is difficult to adapt to municipal works with high working condition requirements and long service life requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well cavity wall steel rib helical bellows, including but not limited to solve the bellows inner wall list thin and ring rigidity not enough, receive the influence of climate change great, the not firm technical problem of overlap joint between two adjacent slab bands inadequately.

In order to solve the technical problem, the embodiment of the utility model provides a well cavity wall steel rib helical bellows is made by cavity steel rib area spiral winding, cavity steel rib area is including slab band body and the steel rib that is rectangular shape, a plurality of through-holes that the interval set up are seted up to the inside of slab band body, the through-hole is followed the length direction of slab band body extends, the slab band body includes two first joint portions, two first joint portion certainly the long edge of the relative both sides of slab band body outwards stretches out to bond each other through the sol, the steel rib is fixed in the slab band body length direction of slab band body extends on the surface, and follows.

Further, well cavity wall steel rib helical bellows still includes the rubber layer, the rubber layer parcel in the slab band body with the outside of steel rib.

Further, the slab band body still includes two second joint portions that the interval set up, second joint portion certainly the surface of slab band body is outwards stretched out, two second joint portion with the surface of slab band body encloses and closes and form the mounting groove, the steel rib includes two hook portions, two hook portion certainly the long limit edge of the relative both sides of steel rib outwards perks, two hook portion holding in the mounting groove to respectively with two second joint portion joint.

Furthermore, at least five through holes are formed in the plate strip body, and the at least five through holes are distributed at equal intervals.

Further, the cross section profile of the first clamping part is L-shaped.

Further, the second clamping portion comprises an inclined surface, and an included angle between the inclined surface and the surface of the plate belt body is larger than 90 degrees.

Further, the mounting grooves are distributed in the middle of the surface of the plate strip body.

The utility model provides a well cavity wall steel rib helical bellows's beneficial effect lies in: the hollow steel rib plate strip is adopted, the ring rigidity is enhanced by arranging the steel ribs on the surface of the plate strip body, enough expansion with heat and contraction with cold allowance are provided by arranging a plurality of through holes inside the plate strip body, the traditional lap joint mode is replaced by the mode of clamping the two first clamping parts, the connection strength between the two adjacent plate strip bodies is further enhanced, the technical problems that the corrugated pipe inner wall is thin and the ring rigidity is insufficient, the influence of weather change is large, and the lap joint between the two adjacent plate strips is not firm enough are effectively solved, the structural strength and the expansion and contraction resistance of the hollow steel rib spiral corrugated pipe are improved, and the service life of the hollow steel rib spiral corrugated pipe is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic axial cross-sectional view of a part of a hollow wall steel rib helical bellows provided in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a hollow steel rib plate strip provided in an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a plate strip body in a hollow steel rib plate strip provided by an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the corrugated plate comprises 1-hollow wall steel rib spiral corrugated pipe, 10-hollow steel rib plate band, 20-sol, 30-rubber layer, 11-plate band body, 12-steel rib, 100-installation cavity, 110-clamping groove, 111-through hole, 112-first clamping part, 113-second clamping part, 121-hook part, 122-bulge part, 1130-inclined surface and alpha-inclined surface, wherein the included angle between the plate band body surface and the inclined surface is formed.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The term "plurality" means two or more unless specifically limited otherwise.

Now the utility model provides a cavity steel rib plate area explains. Referring to fig. 1 and 2, the hollow-walled steel-ribbed helical bellows 1 is made by spirally winding a hollow steel-ribbed plate strip 10, wherein the hollow steel rib plate strip 10 comprises a plate strip body 11 and steel ribs 12, the plate strip body 11 is in a long strip shape, a plurality of through holes 111 are arranged in the plate belt body 11, the through holes 111 are distributed at intervals and extend along the length direction of the plate belt body 11, that is, the through holes 111 penetrate through the opposite ends of the strip body 11, where the strip body 11 includes two first clamping portions 112, the two first clamping portions 112 extend outwards from the edges of the long sides of the opposite sides of the strip body 11, namely, the first clamping part 112 extends along the long side of the plate strip body 11, in the process of spirally winding the hollow steel rib plate strip 10 around a bracket with a fixed diameter to manufacture the hollow wall steel rib spiral corrugated pipe 1, the two first clamping parts 112 are clamped with each other and are bonded with each other through the sol 20; the steel rib 12 is fixed to the surface of the strip body 11 and extends in the longitudinal direction of the strip body 11.

When the hollow wall steel rib spiral corrugated pipe 1 is produced, the sol 20 is required to be laid on the first clamping portions 112, and then in the process of spirally winding the hollow steel rib plate strip 10, the two first clamping portions 112 extending outwards from the edges of the long sides of the plate strip body 11 are bonded together through the sol 20. It will be understood that after the hollow wall steel rib helical bellows 1 is formed, the steel rib 12 is helically wound around the outer surface of the hollow wall steel rib helical bellows 1.

The utility model provides a well cavity wall steel rib helical bellows 1, cavity steel rib slab band 10 has been adopted, through set up steel rib 12 on the surface at slab band body 11 and strengthen ring rigidity, provide sufficient expend with heat and contract with cold surplus through seting up a plurality of through-holes 111 in slab band body 11 is inside, and the mode through two first joint portion 112 joints replaces traditional overlap joint mode, and then the joint strength between two adjacent slab band bodies 11 has been strengthened, thereby it is single thin and ring rigidity is not enough to have solved the bellows inner wall effectively, it is great to receive the influence of weather change, the not firm technical problem of overlap joint department between two adjacent slab bands, the structural strength and the thermal-resistant expend with cold performance of well cavity wall steel rib helical bellows have been promoted, the life of well cavity wall steel rib helical bellows has been prolonged.

Further, please refer to fig. 1, as a specific embodiment of the hollow-wall steel-rib helical bellows provided by the present invention, the hollow-wall steel-rib helical bellows 1 includes a rubber layer 30, the rubber layer 30 is wrapped on the outer side of the strip body 11 and the steel rib 12, that is, after the hollow steel-rib strip 10 is spirally wound into a tubular member, the rubber layer 30 is attached on the outer surface of the tubular member. Therefore, the steel rib 12 is effectively prevented from contacting with air, liquid and the like of the external environment, the liquid of the external environment is prevented from permeating from the clamping joint between the two adjacent plate belt bodies 11 and corroding and damaging the sol 20, the corrosion resistance of the hollow wall steel rib spiral corrugated pipe is improved, and the service life of the hollow wall steel rib spiral corrugated pipe is prolonged.

Further, please refer to fig. 2 and fig. 3, as the utility model provides a concrete implementation of cavity wall steel rib helical bellows, slab band body 11 still includes two second joint portions 113, this second joint portion 113 outwards stretches out from the surface of slab band body 11, and two second joint portions 113 enclose with the surface of slab band body 11 and close and form mounting groove 100, and simultaneously, steel rib 12 includes two hook portions 121, two hook portions 121 outwards perk from the edge on the long limit of the relative both sides of steel rib 12, and two hook portions 121 holding are in mounting groove 100, respectively with two second joint portions 113 joint. Specifically, the two second clamping portions 113 are preferably symmetrically distributed, and the second clamping portions 113 extend along the length direction of the plate strip body 11; the steel rib 12 is made by bending a thin steel sheet, and further comprises a bulge part 122, two bent hook parts 121 are connected to two opposite sides of the bulge part 122, the bulge part 122 can be n-shaped or m-shaped, and the like, the limitation is not limited, the whole steel rib 12 is inserted into the plate strip body 11, when the bent hook parts 121 are accommodated in the installation groove 100, the bent hook parts 121 are abutted to the second clamping parts 113, and then the steel rib 12 is fixed on the surface of the plate strip body 11.

Optionally, please refer to fig. 2 and fig. 3, as a specific embodiment of the hollow wall steel rib helical bellows provided by the present invention, at least five through holes 111 are formed in the plate strip body 11, and the at least five through holes 111 are distributed at equal intervals, that is, five or more than five through holes 111 may be formed in the plate strip body 11 according to the different widths of the hollow steel rib plate strip 10. Therefore, enough expansion and contraction allowance can be provided for the plate strip body 11, the whole weight of the hollow steel rib plate strip 10 can be reduced, the using amount of high-density polyethylene is reduced, and the production cost of the hollow wall steel rib spiral corrugated pipe is reduced.

Further, referring to fig. 1 to 3, as an embodiment of the hollow-wall steel-rib helical bellows provided by the present invention, the cross-sectional profile of the first clamping portion 112 is L-shaped. Specifically, the first clamping portion 112 and the long side of the plate strip body 11 are surrounded to form a clamping groove 110, wherein an opening of the clamping groove 110 on one side of the plate strip body 11 faces upward, an opening of the clamping groove 110 on the other side of the plate strip body 11 faces downward, and in the process of spirally winding the hollow steel rib plate strip 10 to manufacture the hollow wall steel rib spiral corrugated pipe 1, the two clamping grooves 110 are staggered and buckled to form a clamping connection, so that the connection between two adjacent plate strip bodies 11 is firmer and more reliable.

Further, please refer to fig. 2 and fig. 3, as a specific embodiment of the hollow wall steel rib helical bellows provided in the present invention, the second clamping portion 113 includes an inclined surface 1130, an included angle a between the inclined surface 1130 and the surface of the plate strip body 11 is greater than 90 °, that is, the included angle a is an obtuse angle, so that the joint surface between the second clamping portion 113 and the plate strip body 11 is increased, and the connection strength between the second clamping portion 113 and the plate strip body 11 is further improved; and when the rubber layer 30 is laid on the surface of the hollow steel rib plate strip 10, the rubber layer 30 is effectively prevented from bulging at the transition position between the second clamping portion 113 and the plate strip body 11, so that the rubber layer 30 is smoothly and reliably attached to the hollow steel rib plate strip 10.

Further, referring to fig. 2 and fig. 3, as a specific embodiment of the hollow-wall steel rib helical bellows provided by the present invention, the mounting grooves 100 are distributed in the middle of the surface of the plate strip body 11, that is, the steel ribs 12 are fixed in the middle of the surface of the plate strip body 11. Therefore, the acting force transmitted to the two first clamping parts 112 positioned on the two opposite sides by the steel rib 12 is more uniform, the acting force can be prevented from being concentrated at the clamping position on one side, the connection strength of the clamping position of the hollow wall steel rib spiral corrugated pipe is further improved, and the service life of the hollow wall steel rib spiral corrugated pipe is effectively prolonged.

The above are merely examples of the present invention and are not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The hollow wall steel rib spiral corrugated pipe is characterized in that the hollow steel rib plate belt comprises a plate belt body and steel ribs, the plate belt body is long in strip shape, a plurality of through holes are formed in the plate belt body at intervals, the through holes extend in the length direction of the plate belt body, the plate belt body comprises two first clamping portions, the first clamping portions extend outwards from long edge edges of two opposite sides of the plate belt body and are bonded with each other through sol, and the steel ribs are fixed on the surface of the plate belt body and extend in the length direction of the plate belt body.

2. The hollow-walled steel-ribbed helical bellows of claim 1, further comprising a rubber layer wrapping the plate strip body and the outside of the steel ribs.

3. The hollow wall steel rib spiral corrugated pipe as claimed in claim 2, wherein the slab band body further comprises two second clamping portions arranged at intervals, the second clamping portions extend outwards from the surface of the slab band body, the two second clamping portions and the surface of the slab band body enclose to form a mounting groove, the steel rib comprises two bent hook portions, the two bent hook portions are tilted outwards from long edges of two opposite sides of the steel rib, and the two bent hook portions are accommodated in the mounting groove and respectively clamped with the two second clamping portions.

4. The hollow wall steel rib spiral corrugated pipe of claim 3, wherein at least five through holes are formed in the plate strip body, and at least five through holes are distributed at equal intervals.

5. The hollow-walled steel-ribbed helical bellows of claim 4, wherein the first snap-in portion has an L-shaped cross-sectional profile.

6. The hollow walled steel ribbed helical bellows of claim 5, wherein the second snap comprises a ramp angled at an angle greater than 90 ° to the surface of the plate strip body.

7. The hollow walled steel rib helical bellows of any one of claims 3 to 6, wherein the mounting groove is distributed in the middle of the surface of the plate strip body.