CN216430758U

CN216430758U - DRBFPE brown plastic modified steel-plastic composite double-layer reinforced winding pipe

Info

Publication number: CN216430758U
Application number: CN202023073577.5U
Authority: CN
Inventors: 牟长保
Original assignee: Sichuan Yebo Liheng Guijiao Mingwei Pipe Co ltd
Current assignee: Sichuan Yebo Liheng Guijiao Mingwei Pipe Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2022-05-03
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a DRBFPE brown plastic modified steel-plastic composite double-layer reinforced winding pipe, wherein the section shapes of metal fasteners are the same, and plastic strips have a double-layer structure. Not only the joint of the snap fastener of the adjacent strips is protected; the strength and the ring stiffness are enhanced greatly, the sealing performance is good, the stress cracking resistance is good, the low-temperature impact resistance is good, the joint cannot be broken due to the action of soil movement or load, the leakage phenomenon is avoided, the strength is higher, and the heat resistance is excellent.

Description

DRBFPE brown plastic modified steel-plastic composite double-layer reinforced winding pipe

Technical Field

The utility model relates to the technical field of pipes, in particular to a DRBFPE corrugated plastic modified steel-plastic composite double-layer reinforced winding pipe.

Background

The steel-plastic composite winding drain pipe is a pipeline suitable for projects such as town drainage, industrial drainage, farmland drainage and the like. The drain pipe is convenient to transport, assemble and disassemble, simple and convenient to construct, good in connection sealing performance and an ideal substitute product for cement pipes, cast iron pipes and glass reinforced plastic pipes.

Most are made by spirally winding an inner plastic strip and an outer steel fastener. The plastic strips are usually wound and fixed by hot melt adhesive bonding between adjacent strips, so that cracks are easy to appear at the interface and leakage is easy to occur. The post design is buckled adjacent strip material lock joint and hot melt through the primary and secondary knot of strip both sides, and it is good to combine sealing performance, and intensity is high, and the practicality is strong. However, in the prior art, the metal fastener is spirally wound and clamped between two adjacent T-shaped raised lines on the plastic strip, although the ring stiffness is improved compared with that of the traditional drain pipe, the snap fastener welding position of the adjacent strips is exposed outside for a long time, and after the pipeline is buried, the joint can be disconnected due to the action of soil movement or load, so that the pipeline leakage is caused.

In previous work, the applicant has succeeded in designing and manufacturing composite pipes that solve the above-mentioned problems. In subsequent use, the strength, temperature resistance and the like of the composite pipe can be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a DRBFPE corrugated plastic modified steel-plastic composite double-layer reinforced winding pipe which is higher in strength and better in temperature resistance, and aims to solve the problems of the conventional DRBFPE corrugated plastic modified steel-plastic composite double-layer reinforced winding pipe.

In order to realize the purpose of the utility model, the technical scheme is as follows: the DRBFPE corrugated plastic modified steel-plastic composite double-layer reinforced winding pipe can be also called as a DRBFPE corrugated plastic modified steel-plastic composite double-layer reinforced winding pipe and comprises a pipe body formed by spirally winding a plastic strip and a metal fastener spirally wound on the outer wall of the pipe body; snap buttons are arranged at two ends of the plastic strips, a plurality of T-shaped convex ribs are arranged in the middle of the plastic strips, and the adjacent plastic strips are buckled, combined and welded through the snap buttons; two sides of the metal fastener are clamped in the T-shaped convex ribs; the metal fastener is arranged at the clamping and welding position of the snap fastener and the outer part of one convex rib; the cross section shapes of all the metal fasteners are the same, and the outer circular walls of the fasteners are corrugated; the plastic strip is of a double-layer structure.

The DRBFPE is an abbreviation of a basalt fiber-Polyethylene Double-layer reinforced structure, the Double Reinforcement is Double-layer reinforcement (DR), the Basaltfiber is Basalt Fiber (BF), and the Polyethylene is Polyethylene (PE).

Further, the sizes of the metal fasteners are the same.

Furthermore, the cross section of each metal fastener is trapezoidal or triangular.

Furthermore, the two sides of the metal fastener are provided with bending edges, and the bending edges are clamped in the T-shaped convex ribs.

Wherein, at least one layer of the double-layer structure of the plastic strip is a high polymer material layer.

At least one layer of the double-layer structure of the plastic strip is a mixed layer of a high polymer material and basalt fibers.

The polymeric material may be selected from (UHMWPE) ultra high molecular weight polyethylene materials.

The utility model has the beneficial effects that:

(1) on one hand, the joint of the snap fastener of the adjacent strips is protected while the original function of increasing the rigidity of the ring is realized by combining the two metal fasteners and the convex ribs; on the other hand, the strength and the ring rigidity are further enhanced, the sealing performance is good, the stress cracking resistance is good, the low-temperature impact resistance is good, the joint cannot be broken due to the action of soil movement or load, and the leakage phenomenon is avoided. The convex ribs are combined with the corrugated design of the metal fastener, so that the pipe body and the metal fastener are respectively provided with the reinforcing ribs, the rigidity of the pipe can be enhanced, and the shape of the pipe diameter can be kept during backfilling.

(2) The double-layer structure can effectively improve the strength, toughness and wear resistance of the pipe, and can also improve the high-temperature resistance and permanent flame retardance.

(3) By adopting the design of the utility model, the metal fasteners are closer to each other, and the strength of the pipe is increased.

Drawings

Fig. 1 is a sectional view of the DRBFPE corrugated plastic modified steel-plastic composite double-layer reinforced winding pipe provided by the present invention.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Fig. 1 shows a DRBFPE corrugated plastic modified steel-plastic composite double-layer reinforced winding pipe provided by the utility model, which comprises a pipe body formed by spirally winding a plastic strip 1 and a metal fastener spirally wound on the outer wall of the pipe body; snap buttons are arranged at two ends of each plastic strip 1, a plurality of T-shaped convex ribs 2 are arranged in the middle of each plastic strip, and adjacent plastic strips 1 are buckled, combined and welded through the snap buttons; two sides of the metal fastener are clamped in the T-shaped convex ribs 2; the metal fastener 3 is fastened at the clamping and welding position of the snap fastener and the outer part of one convex rib 2; the cross section of each metal fastener 3 is the same, and the outer circular wall of the fastener is corrugated.

The two ends of the strip with the snap fastener in the width are respectively a female part 4 and a male part 5 of the snap fastener, the female part 4 is in a slot shape, and the male part 5 is in a convex shape. In the process of spirally winding the strip material, the strip material is buckled and welded and fixed with the mother part 4 of the adjacent strip material through the son part 5. The polyethylene strip is coiled into a pipe body in a spiral coiling mode, the metal fasteners are buckled with the convex ribs 2 on the strip in the same spiral coiling mode, and different fasteners are buckled at different positions to form the composite pipe with the outer wall wound with the two metal fasteners.

The metal fasteners 3 have the same size and the same cross-sectional shape. The cross section of each fastener can be trapezoidal or triangular.

Both sides of each metal fastener 3 are provided with bending edges which are clamped in the T-shaped convex ribs 2.

Four convex ribs 2 are arranged between snap fasteners at two ends of the plastic strip 1; the plastic strip 1 adopts a double-layer structure design, so that the wear resistance of the plastic strip is effectively improved; one layer of the double-layer structure of the plastic strip is a high polymer material layer.

In another embodiment of the present invention, one layer of the double-layer structure of the plastic strip is a mixed layer of a polymer material and basalt fiber.

In one embodiment of the utility model, the polymeric material comprises (UHMWPE) an ultra-high molecular weight polyethylene material.

In another embodiment of the present invention, the mixed layer is a mixed layer of an ultra-high molecular weight polyethylene material (UHMWPE) and basalt fiber, and the mixing ratio thereof may be adjusted according to actual requirements.

In an embodiment of the utility model, the polymer material layer is adjacent to the metal fastener.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the spirit and principle of the present invention and that equivalent modifications and substitutions and the like are included in the scope of the present invention.

Claims

The DRBFPE brown plastic modified steel-plastic composite double-layer reinforced winding pipe comprises a pipe body formed by spirally winding a plastic strip and a metal fastener spirally wound on the outer wall of the pipe body; snap buttons are arranged at two ends of the plastic strips, a plurality of T-shaped convex ribs are arranged in the middle of the plastic strips, and the adjacent plastic strips are buckled, combined and welded through the snap buttons; two sides of the metal fastener are clamped in the T-shaped convex ribs; a polymer material layer; the metal fastener is arranged at the clamping and welding position of the snap fastener and the outside of one convex rib; the cross section shapes of the metal fasteners are the same, and the outer circular walls of the metal fasteners are corrugated; the plastic strip is of a double-layer structure.
2. The DRBFPE brown plastic modified steel plastic composite double-layer reinforced winding pipe according to claim 1, wherein at least one layer of the double-layer structure of the plastic strip is a polymer material layer.
3. The DRBFPE brown plastic modified steel plastic composite double-layer reinforced winding pipe of claim 1, wherein the polymer material layer is adjacent to the metal fastener.
4. The DRBFPE brown plastic modified steel plastic composite double-layer reinforced winding pipe according to claim 1, wherein the sizes of the metal fasteners are the same.
5. The DRBFPE brown plastic modified steel-plastic composite double-layer reinforced winding pipe according to claim 1, wherein the cross section of the metal fastener is trapezoidal or triangular.
6. The DRBFPE xuan plastic modified steel-plastic composite double-layer reinforced winding pipe according to claim 1, wherein both sides of the metal fastener have bent edges, and the bent edges are clamped in the T-shaped convex ribs.