CN218895087U

CN218895087U - Silicon-aluminum reinforced fiber reinforced corrugated pipe

Info

Publication number: CN218895087U
Application number: CN202223203551.7U
Authority: CN
Inventors: 施锦琪; 沈宇龙; 陈华艳; 沈涛涛
Original assignee: Huzhou Jinjie Industry Co ltd
Current assignee: Huzhou Jinjie Industry Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-21
Anticipated expiration: 2032-12-01

Abstract

The utility model provides a silicon-aluminum reinforced fiber reinforced corrugated pipe, which comprises an inner pipe, a silicon-aluminum reinforced fiber reinforced layer arranged on the outer wall of the inner pipe and an outer corrugated pipe coated on the outer side of the silicon-aluminum reinforced fiber reinforced layer; the outer corrugated pipe comprises a hollow corrugated part spirally arranged around the pipe body and a transition part formed between two adjacent spiral units of the corrugated part; the silicon-aluminum reinforced fiber reinforced layer comprises a first reinforced part spirally arranged along the outer wall of the inner tube and a strip-shaped second reinforced part arranged between two adjacent spiral units of the first reinforced part, wherein two side parts of the second reinforced part respectively cover at least one part of two connecting parts which are close to each other between two adjacent spiral units of the first reinforced part. The second reinforcing part is arranged to enhance the integrity between the adjacent spiral units of the first reinforcing part, and the reinforcing effect of the reinforcing layer is improved, so that the axial and radial mechanical properties of the corrugated pipe are improved.

Description

Silicon-aluminum reinforced fiber reinforced corrugated pipe

Technical Field

The utility model relates to a pipe, in particular to a silicon-aluminum reinforced fiber reinforced corrugated pipe.

Background

Double-wall corrugated pipe is a new pipe with corrugated structure outer wall and smooth inner wall, and has been developed and perfected for decades, and has been developed from single variety to complete product series, and has been mature in production process and use technology. The flame-retardant PVC pipe has the advantages of reasonable structure, attractive appearance, high external pressure resistance, high temperature resistance, low resistance, high flow, high flame retardance, long service life, reliable hygienic property low comprehensive cost, acid and alkali resistance, high strength, strong earthquake resistance, energy saving, consumption reduction, convenient installation and transportation and other excellent performances and relatively economical cost, is widely applied to the fields of agricultural drainage and irrigation, urban rain sewage discharge, low-pressure water delivery, communication power sheath pipe networks and the like. However, the outer wall of the double-wall corrugated pipe is of a hollow corrugated structure, and the pipe is easily broken, collapsed and the like in the transportation and construction processes, so that the quality and the service life of the pipe are affected.

The patent document with the patent application number of CN202121680017.8 discloses a fiber band reinforced polyethylene spiral corrugated pipe, which comprises an inner pipe and an outer sheet layer, wherein a reinforcing band is arranged between the inner pipe and the outer sheet layer, and the reinforcing band is basalt fiber band; the basalt fiber strip is formed by presoaking and pressing basalt fibers and hot melt adhesive; the section of the pressure-bearing structure pressed by the basalt fiber strip is omega-shaped or inverted V-shaped, and the physical strength of the hollow corrugated structure can be improved by arranging the reinforcing belt, so that the corrugated structure is prevented from being damaged, and the quality of the pipe is improved. However, in the technical scheme, the reinforcing belts are spirally arranged on the outer side of the inner pipe, the reinforcing belts positioned on the two adjacent spiral units form a larger interval in the axial direction, and after the corrugated pipe is formed, the reinforcing belts positioned on the two adjacent spiral units lack a mechanical direct action, so that the reinforcing effect of the reinforcing belts on the overall mechanical property of the corrugated pipe is not obvious enough.

Disclosure of Invention

In order to solve the problems, the utility model provides the silicon-aluminum reinforced fiber reinforced corrugated pipe, which is provided with the silicon-aluminum reinforced fiber reinforced layer, wherein the reinforced layer can improve the strength of the corrugated structure, prevent the corrugated structure from being broken and improve the overall mechanical property of the corrugated pipe.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the aluminum-silicon reinforced fiber reinforced corrugated pipe comprises an inner pipe, an aluminum-silicon reinforced fiber reinforced layer arranged on the outer wall of the inner pipe and an outer corrugated pipe coated on the outer side of the aluminum-silicon reinforced fiber reinforced layer; the inner pipe is a straight pipe; the outer corrugated pipe comprises a hollow corrugated part spirally arranged around the pipe body and a transition part formed between two adjacent spiral units of the corrugated part; the silicon aluminum reinforced fiber reinforced layer comprises a first reinforced part spirally arranged along the outer wall of the inner tube and a strip-shaped second reinforced part arranged between two adjacent spiral units of the first reinforced part, wherein the first reinforced part comprises a hollow supporting part and connecting parts, the hollow supporting part is formed in the direction of an outward corrugated tube, the connecting parts are formed on two sides of the supporting part, the outer wall of the supporting part is bonded with the inner wall of the corrugated part to form connection, the connecting parts are bonded with the outer wall of the inner tube to form connection, two side parts of the second reinforced part respectively cover at least one part of two connecting parts which are close to each other between two adjacent spiral units of the first reinforced part, and the transition part of the outer corrugated tube covers the second reinforced part.

The preparation method of the corrugated pipe provided by the utility model mainly comprises the following steps: firstly, preparing an inner tube, then spirally winding a first reinforcing part on the outer wall of the inner tube and performing thermal bonding, wherein the first spiral reinforcing part preliminarily forms a spiral corrugated structure on the outer wall of the inner tube, then spirally winding a second reinforcing part between two adjacent spiral units of the first reinforcing part and performing thermal bonding, connecting the two adjacent spiral units of the first reinforcing part by using the second reinforcing part, improving the mechanical conductivity between the two adjacent spiral units, and finally arranging an outer corrugated pipe on the periphery of a silicon-aluminum reinforced fiber reinforced layer formed by the first reinforcing part and the second reinforcing part, wherein the outer corrugated pipe is coated according to the outer contour of the silicon-aluminum reinforced fiber reinforced layer. In the utility model, the first reinforcing part is utilized to form the supporting structure in advance when the outer corrugated pipe is coated, so that the corrugated structure formed by coating the outer corrugated pipe on the first reinforcing part has higher structural strength and is not easy to crack, the second reinforcing part improves the integrity of the silicon-aluminum reinforced fiber reinforced layer in the axial direction, and the reinforced layer can improve the mechanical strength of the corrugated pipe in the axial direction and the radial direction and avoid the corrugated pipe from cracking. From another angle, the provision of the second reinforcement also provides a radial force to make the connection between the first reinforcement and the inner tube stronger, improving structural stability. As used herein, "helical unit" refers to the smallest repeating segment in a uniform helical structure.

Further, a space is formed between two connecting portions adjacent to each other between two adjacent spiral units of the first reinforcing portion.

Further, the middle part of the second reinforcing part is attached to the outer wall of the inner tube and connected with the outer wall of the inner tube.

Further, a groove portion opening in the outer bellows direction is formed in the middle of the second reinforcing portion.

Further, the outer side of the transition part forms a straight surface, and the inner side of the transition part is matched with the outer side contour of the second reinforcing layer.

Further, both side portions of the second reinforcing portion also cover a part of the supporting portion. In the utility model, the second reinforcing part can only cover two connecting parts at two sides, and can also further extend and cover two supporting parts at two sides, so that the connection strength between two adjacent spiral units of the first reinforcing part is further improved

Further, the thickness of the second reinforcement portion is less than or equal to the thickness of the first reinforcement portion.

Further, the outer side surface of the corrugated part is a curved surface with natural transition.

Further, the cross sections of the hollow areas of the corrugated part and the supporting part are semicircular.

In summary, the following beneficial effects can be obtained by applying the utility model:

1. according to the corrugated pipe provided by the utility model, the first reinforcing part is arranged to match and support the corrugated structure of the external corrugated pipe, so that the strength of the corrugated structure is improved, and the corrugated structure is prevented from being broken in the transportation and use processes.

2. The corrugated pipe provided by the utility model has the advantages that the integrity between the adjacent spiral units of the first reinforcing part is reinforced by arranging the second reinforcing part, and the reinforcing effect of the reinforcing layer is improved, so that the axial and radial mechanical properties of the corrugated pipe are improved.

3. The reinforcing layer is firmly bonded with the outer wall of the inner tube and the inner wall of the outer corrugated tube, so that the connection stability between the inner tube and the outer tube can be improved, and delamination between the inner tube and the outer tube is avoided.

Drawings

FIG. 1 is a schematic structural view of a silica alumina reinforced fiber reinforced corrugated pipe in an embodiment;

in the figure, the inner tube is 1-, the outer corrugated tube is 2-, the 3-silicon aluminum reinforced fiber reinforced layer is 21-the corrugated part, the 22-the transition part is 31-the first reinforced part, the 32-the second reinforced part is 311-the supporting part, the 322-the connecting part and the 321-the groove part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

As shown in fig. 1, the present embodiment provides a silica-alumina reinforced fiber reinforced corrugated pipe comprising an inner pipe 1 formed of a straight pipe in an inner layer, an outer corrugated pipe 2 having a hollow helical corrugated structure in an outer layer, and a silica-alumina reinforced fiber reinforced layer 3 interposed between the inner pipe and the outer pipe.

Specifically, as shown in the enlarged part of fig. 1, the silica-alumina reinforced fiber reinforced layer 3 includes a first reinforced portion 31 and a second reinforced portion 32, the first reinforced portion is shaped like an Ω, and includes a supporting portion 311 protruding in the direction of the outward bellows in the middle, the supporting portion 311 has a hollow inner cavity, the hollow inner cavity forms an opening toward one side of the inner tube, the outer side surface of the supporting portion cooperates with and connects with the inner side surface of the bellows portion 21 of the outward bellows, the inside of the bellows structure is supported by the inside and kept hollow, two ends of the supporting portion are respectively connected with a connecting portion 312, the inner side surface shape of the connecting portion cooperates with the outer wall of the inner tube, so that the connecting portion can be bonded and connected with the outer wall of the inner tube, and the first reinforced portion is fixed on the outer wall of the inner tube. In the present embodiment, the cross section of the corrugated structure is semicircular, and the cross section of the hollow cavity is semicircular, but the corrugated structure is not limited to this shape, and the cross section of the corrugated structure may be trapezoid, triangle, square or other shapes formed by combining straight lines and curves according to specific needs and restrictions of the mold shape. The second reinforcing part is of a strip-shaped structure, the second reinforcing part is arranged between two adjacent spiral units of the first reinforcing part, the first side of the second reinforcing part covers the outer surface of the connecting part of one spiral unit, the second side covers the outer surface of the connecting part of the other spiral unit, so that two mutually-close connecting parts are connected in the axial direction, a spacing area is reserved between the two mutually-close connecting parts, the middle part of the second reinforcing part is concave to form a groove part 321 of which the opening faces to the outer corrugated pipe, and the second reinforcing part is attached to and connected with the outer wall of the inner pipe through the spacing area, so that the connection strength between the first reinforcing part and the inner pipe is improved. It should be noted that, in this embodiment, the second reinforcing portion just covers the connection portion completely, and in some other embodiments, the second reinforcing portion may partially cover the connection portion, or may extend and further cover a portion of the supporting portion, so long as the second reinforcing portion functions to connect two connected spiral units. In order to enable the second reinforcing part to be attached to the connecting part and the outer wall of the inner tube more tightly, the end part of the connecting part can form a transition curved surface which is formed by naturally transiting from the outer side surface of the connecting part to the outer wall of the inner tube, so that the second reinforcing part can be matched through the transition curved surface to avoid internal cavitation. The second reinforcing part is hot-pressed between two adjacent spiral units through a mold with a bulge in the middle in the spiral winding process, so that the groove part 321 is formed, when the outer corrugated pipe is coated on the outer side of the reinforcing layer, the transition part 22 is attached to and connected with the profile formed by the outer side surface of the second reinforcing part, namely the transition part fills the groove part, and the outer side surface of the transition part is a flat surface without a concave-convex structure.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A kind of silicon aluminum strengthens the corrugated pipe material that the fiber strengthens, characterized by: the aluminum-silicon reinforced plastic composite pipe comprises an inner pipe, a silicon-aluminum reinforced fiber reinforced layer arranged on the outer wall of the inner pipe and an outer corrugated pipe coated on the outer side of the silicon-aluminum reinforced fiber reinforced layer; the inner pipe is a straight pipe; the outer corrugated pipe comprises a hollow corrugated part spirally arranged around the pipe body and a transition part formed between two adjacent spiral units of the corrugated part; the silicon aluminum reinforced fiber reinforced layer comprises a first reinforced part spirally arranged along the outer wall of the inner tube and a strip-shaped second reinforced part arranged between two adjacent spiral units of the first reinforced part, wherein the first reinforced part comprises a hollow supporting part and connecting parts, the hollow supporting part is formed in the direction of an outward corrugated tube, the connecting parts are formed on two sides of the supporting part, the outer wall of the supporting part is bonded with the inner wall of the corrugated part to form connection, the connecting parts are bonded with the outer wall of the inner tube to form connection, two side parts of the second reinforced part respectively cover at least one part of two connecting parts which are close to each other between two adjacent spiral units of the first reinforced part, and the transition part of the outer corrugated tube covers the second reinforced part.

2. A corrugated tube reinforced with silica alumina reinforcing fiber according to claim 1, wherein: and a space is formed between two connecting parts which are close to each other and between two adjacent spiral units of the first reinforcing part.

3. A corrugated tube reinforced with silica alumina reinforcing fiber according to claim 2, wherein: the middle part of the second reinforcing part is attached to the outer wall of the inner tube and connected with the outer wall of the inner tube.

4. A corrugated tube reinforced with silica alumina reinforcing fiber according to claim 1, wherein: the middle part of the second reinforcing part forms a groove part with an opening facing the direction of the outer corrugated pipe.

5. A silica alumina reinforced fiber reinforced corrugated pipe according to claim 4, wherein: the outer side of the transition part forms a straight surface, and the inner side of the transition part is attached to the outer side contour of the second reinforcing layer.

6. A corrugated tube reinforced with silica alumina reinforcing fiber according to claim 1, wherein: the two side parts of the second reinforcing part also cover a part of the supporting part.

7. A corrugated tube reinforced with silica alumina reinforcing fiber according to claim 1, wherein: the thickness of the second reinforcing part is smaller than or equal to that of the first reinforcing part.

8. A corrugated tube reinforced with silica alumina reinforcing fiber according to claim 1, wherein: the outer side surface of the corrugated part is a curved surface in natural transition.

9. A silica alumina reinforced fiber reinforced corrugated pipe according to claim 8, wherein: the cross sections of the hollow areas of the corrugated part and the supporting part are semicircular.