CN219588310U

CN219588310U - DRPE steel-plastic composite winding drain pipe

Info

Publication number: CN219588310U
Application number: CN202320302245.4U
Authority: CN
Inventors: 杜小斌
Original assignee: Guizhou Lingsu Pipe Industry Co ltd
Current assignee: Guizhou Lingsu Pipe Industry Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-08-25
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses a DRPE steel-plastic composite winding drain pipe, which comprises a DRPE pipe body, a buckle belt and an aluminum-zinc plated steel belt; the buckling belt is spirally fixed on the peripheral surface of the DRPE pipeline body, and the aluminum-zinc plated steel belt is wound in the interval of the buckling belt; the middle part of the aluminum-zinc-plated steel strip protrudes upwards to form an arch bridge part, the top end of the arch bridge part is higher than the surface of the buckle belt, and both sides of the bottom of the buckle belt are outwards bent to form buckling lugs; the two ends of the buckle belt are extended with buckle plates, the buckle plates are bent downwards in an arc shape, and the buckle lugs are buckled on the inner sides of the buckle plates; according to the utility model, the middle part of the aluminum-zinc-plated steel strip protrudes upwards to form the arch bridge part, the compressive deformation capacity of the aluminum-zinc-plated steel strip can be greatly increased, the top end of the arch bridge part is higher than the surface of the buckle belt, so that external stress is born by the aluminum-zinc-plated steel strip, the pressure of the rest part is born by the hollow buckle belt, the DRPE pipeline body can be effectively protected, the ring rigidity of the pipeline is improved, and the connection strength of the buckle lugs and the buckle plate after the aluminum-zinc-plated steel strip is wound is increased by the combination scheme of the buckle lugs and the buckle plate.

Description

DRPE steel-plastic composite winding drain pipe

Technical Field

The utility model relates to the technical field of pipelines, in particular to a DRPE steel-plastic composite winding drain pipe.

Background

Because the drain pipe needs to be buried for a long time, the requirement on the ring stiffness and the corrosion resistance of the pipeline is very high, the existing drain pipe is wound with steel belts on the surface of the pipeline for increasing the ring stiffness, but the steel belts are mostly flat and easy to deform when being pressed, and the steel belts are fixed on the surface after being wound by fusion welding in a large area, so that more filling materials are needed, and the fixing strength is lower.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a DRPE steel-plastic composite winding drain pipe, which can greatly improve the ring rigidity, the corrosion resistance of a pipeline and the fixing strength and the fixing difficulty of the steel belt.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a DRPE steel-plastic composite winding drain pipe comprises a DRPE pipe body, a buckle belt and an aluminum-zinc plated steel belt; the buckling belt is spirally fixed on the peripheral surface of the DRPE pipeline body, and the aluminum-zinc plated steel belt is wound in the interval of the buckling belt; the middle part of the aluminum-zinc-plated steel strip protrudes upwards to form an arch bridge part, the top end of the arch bridge part is higher than the surface of the buckle belt, and both sides of the bottom of the buckle belt are outwards bent to form buckling lugs; the buckle plates extend out from two ends of the buckle belt, and are bent downwards in an arc shape to fasten the buckle lugs on the inner sides of the buckle plates.

Furthermore, the DRPE pipeline body and the buckle belt are integrally manufactured by adopting a hot melting double-layer co-extrusion technology.

Further, the buckle belt comprises two rib plates which are connected to the DRPE pipeline body in parallel, the upper side of each rib plate is horizontally connected with a cover plate, a closed cavity is formed by the rib plates, the cover plates and the DRPE pipeline body in a surrounding mode, and the positions, beyond the rib plates, of the two ends of each cover plate are connected with the buckle plates.

Further, the outer side of the rib plate is arc-shaped and is matched with the outline of the outer side of the buckle ear.

Further, the height of the aluminum-zinc plated steel strip is 1.8-2.2 times of that of the buckle strip.

Further, an ultra-high molecular weight polyethylene particle coating is added to the inner layer of the DRPE pipeline body.

The utility model has the advantages that:

according to the utility model, the pipeline body and the buckle belt are integrally manufactured by adopting high-density polyethylene particles through a hot melting double-layer coextrusion technology, the middle part of the aluminum-zinc plated steel belt is upwards protruded to form the arch bridge part, the structure can greatly increase the compression deformation resistance of the aluminum-zinc plated steel belt, the top end of the arch bridge part is higher than the surface of the buckle belt, so that external stress can be born by the aluminum-zinc plated steel belt at first, the pressure of the rest part is born by the hollow buckle belt, the DRPE pipeline body can be effectively protected, meanwhile, the ring rigidity of the pipeline is improved, and the connection strength of the buckle lugs and the buckle plate after the aluminum-zinc plated steel belt is wound is increased, and meanwhile, the production difficulty is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure, the pipe body is 1-DRPE, the buckling belts are 2-, the rib plates are 21-, the cover plates are 22-, the buckling plates are 23-, the steel bands are 3-aluminized zinc steel bands, the arch bridge parts are 31-and the buckling lugs are 32-.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1-2:

a DRPE steel-plastic composite winding drain pipe comprises a DRPE pipe body 1, a buckle belt 2 and an aluminum-zinc plated steel belt 3; the buckling belt 2 is spirally fixed on the peripheral surface of the DRPE pipeline body 1, and the aluminum-zinc plated steel belt 3 is wound in the interval of the buckling belt 2; the middle part of the aluminum-zinc-plated steel strip 3 protrudes upwards to form an arch bridge part 31, the top end of the arch bridge part 31 is higher than the surface of the buckle belt 2, and both sides of the bottom of the buckle belt 2 are outwards bent to form buckling lugs 32; the buckle plates 23 extend out of two ends of the buckle belt 2, and the buckle plates 23 are bent downwards in an arc shape to buckle the buckling lugs 32 on the inner sides of the buckle plates 23.

According to the utility model, the pipeline body and the buckle belt 2 are integrally manufactured by adopting high-density polyethylene (DRPE) particles and adopting a hot-melting double-layer coextrusion technology, the buckle belt 2 takes a hollow high-density polyethylene plate belt as a matrix, an omega-shaped aluminum-zinc-plated steel belt 3 is used as a main supporting structure, a winding forming process is adopted, the inner wall of the winding pipeline is straight and smooth, the outer wall of the winding pipeline is corrugated, the middle part of the aluminum-zinc-plated steel belt 3 is upwards protruded to form an arch bridge part 31, the structure can greatly increase the compression deformation resistance of the aluminum-zinc-plated steel belt 3, the top end of the arch bridge part 31 is higher than the surface of the buckle belt 2 (the height of the aluminum-zinc-plated steel belt 3 is 1.8-2.2 times of that of the buckle belt 2 according to use requirements), so that external stress can be borne by the aluminum-zinc-plated steel belt 3 at first, the rest of the pressure is borne by the hollow buckle belt 2, the DRPE pipeline body 1 can be effectively protected, meanwhile, the ring rigidity of the pipeline is improved, and the combination scheme of the buckle lugs 32 and the buckle plate 23 increases the connection strength after winding of the aluminum-zinc-plated steel belt 3, and the difficulty of production is reduced.

The aluminum-zinc plated steel strip 3 has the characteristics of high-strength corrosion resistance which is 3 times that of a pure galvanized plate; the surface has beautiful spangles, when zinc is worn, aluminum forms a layer of compact aluminum oxide, and corrosive substances are prevented from further corroding the inside.

The utility model is suitable for municipal underground rainwater and sewage drainage, and is suitable for pipes for pressureless drainage and outdoor drainage of buildings, and also suitable for pipes for industrial and agricultural water delivery and diversion.

As a further optimization scheme, the buckle belt 2 comprises two rib plates 21 which are connected to the DRPE pipeline body 1 in parallel, a cover plate 22 is horizontally connected to the upper side of the rib plates 21, a closed cavity is formed between the rib plates 21, the cover plate 22 and the DRPE pipeline body 1 (the two ends of the buckle belt 2 are used for sealing the cavity), the two ends of the cover plate 22 exceed the positions of the rib plates 21, then the buckle plates 23 are connected, in order to improve welding strength, the outer sides of the rib plates 21 are arc-shaped, the outer side contours of the buckle lugs 32 are matched, and a larger welding area is formed after extrusion.

As a further optimization scheme, the ultra-high molecular weight polyethylene particle coating is added to the inner layer of the DRPE pipeline body 1, so that the wear resistance and corrosion resistance of the pipeline are enhanced, and the service life of the pipeline is prolonged.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims

1. The utility model provides a DRPE steel-plastic composite winding drain pipe which characterized in that: comprises a DRPE pipeline body, a buckle belt and an aluminum-zinc plated steel belt; the buckling belt is spirally fixed on the peripheral surface of the DRPE pipeline body, and the aluminum-zinc plated steel belt is wound in the interval of the buckling belt; the middle part of the aluminum-zinc-plated steel strip protrudes upwards to form an arch bridge part, the top end of the arch bridge part is higher than the surface of the buckle belt, and both sides of the bottom of the buckle belt are outwards bent to form buckling lugs; the buckle plates extend out from two ends of the buckle belt, and are bent downwards in an arc shape to fasten the buckle lugs on the inner sides of the buckle plates.

2. The DRPE steel-plastic composite wound drain pipe according to claim 1, characterized in that: the DRPE pipeline body and the buckle belt are integrally manufactured by adopting a hot-melting double-layer co-extrusion technology.

3. The DRPE steel-plastic composite wound drain pipe according to claim 1, characterized in that: the buckle belt comprises two rib plates which are connected to the DRPE pipeline body in parallel, a cover plate is horizontally connected to the upper side of the rib plate, a closed cavity is formed by the rib plate, the cover plate and the DRPE pipeline body in a surrounding mode, and the positions, beyond the rib plate, of the two ends of the cover plate are connected with the buckle plate.

4. A DRPE steel-plastic composite wrapped drain pipe according to claim 3, characterized in that: the outer side of the rib plate is arc-shaped and is matched with the outer side contour of the buckling lug.

5. The DRPE steel-plastic composite wrapped drain pipe according to any one of claims 1-4, characterized in that: the height of the aluminum-zinc plated steel strip is 1.8-2.2 times of that of the buckle strip.

6. The DRPE steel-plastic composite wrapped drain pipe according to any one of claims 1-4, characterized in that: the inner layer of the DRPE pipeline body is added with an ultra-high molecular weight polyethylene particle coating.