CN220980561U - Fiber reinforced polyethylene composite pipe - Google Patents

Abstract

The utility model discloses a fiber reinforced polyethylene composite pipe, which comprises a polyethylene pipe, two flange structures respectively sleeved at two ends of the polyethylene pipe, and a fiber reinforced layer wound on the polyethylene pipe and the flange structures; and a plurality of pins are arranged on the two flange structures, and the pins are buried in the fiber reinforced layer. According to the flange structure, the plurality of pins are arranged on the flange structure and embedded in the fiber reinforced layer, and the flange structure is firmly combined with the polyethylene-based pipe and the fiber reinforced layer through the restriction of the pins, so that the traction force born by the flange structure is improved, and the connection effect of the pipeline is prevented from being influenced due to loosening of the flange structure when the pipeline is connected.

Description

Fiber reinforced polyethylene composite pipe

Technical Field

The utility model relates to the technical field of composite pipelines, and particularly discloses a fiber reinforced polyethylene composite pipe.

Background

At present, polyethylene pipelines have been widely used in such fields as water supply, gas, sewage disposal, communication cables, and the like. Along with the increasing complexity of the application environment of the polyethylene pipeline, the compressive strength requirement of people on the polyethylene pipeline is also higher. For this purpose, some techniques wind a fibrous layer on a polyethylene pipe to increase the strength of the polyethylene pipe, as shown in the patent application CN 202022553073.7. When the two pipelines are connected, the flanges on the two pipelines are connected by bolts, so that the two pipelines are connected together. The flange plate in the installation mode has limited traction force, and when the flange plate is subjected to larger traction force, the flange plate is easy to loosen, so that the connection performance of the pipeline is affected.

Disclosure of utility model

In order to solve the problems, the utility model provides a fiber reinforced polyethylene composite pipe, wherein a flange plate on the fiber reinforced polyethylene composite pipe can bear larger traction force, and the flange plate is prevented from loosening when pipelines are connected.

The aim of the utility model is achieved by the following technical scheme: the fiber reinforced polyethylene composite pipe comprises a polyethylene pipe, two flange structures respectively sleeved at two ends of the polyethylene pipe, and a fiber reinforced layer wound on the polyethylene pipe and the flange structures; and a plurality of pins are arranged on the two flange structures, and the pins are buried in the fiber reinforced layer.

Further, the flange structure comprises a metal sleeve sleeved on the outer side of the polyethylene-based pipe, a baffle ring fixedly arranged on the outer side of the metal sleeve, and a flange plate sleeved on the metal sleeve; the baffle ring is positioned on one side of the metal sleeve, which is close to the end part of the polyethylene pipe, the pin is arranged on the outer wall of the metal sleeve, and the fiber reinforced layer is wound between the flanges of the two flange structures.

And thickening layers are arranged on the outer sides of the two ends of the polyethylene-based pipe, and the baffle rings are positioned between the thickening layers and the flange plates.

Both ends of the polyethylene-based pipe are turned outwards to form the thickening layer.

The outer diameter of the thickening layer is the same as the outer diameter of the baffle ring.

The pins are circumferentially distributed on the outer wall of the metal sleeve.

The pin is perpendicular to the surface of the metal sleeve.

Compared with the prior art, the utility model has the following beneficial effects: according to the flange structure, the plurality of pins are arranged on the flange structure and embedded in the fiber reinforced layer, and the flange structure is firmly combined with the polyethylene-based pipe and the fiber reinforced layer through the restriction of the pins, so that the traction force born by the flange structure is improved, and the connection effect of the pipeline is prevented from being influenced due to loosening of the flange structure when the pipeline is connected.

Additional features of the application will be set forth in part in the description which follows. Additional features of part of the application will be readily apparent to those skilled in the art from a examination of the following description and the corresponding figures or a study of the manufacture or operation of the embodiments. The features of the present disclosure may be implemented and realized in the practice or use of the various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. Like reference symbols in the various drawings indicate like elements. Wherein,

Fig. 1 is a cross-sectional view of the present utility model.

Fig. 2 is a cross-sectional view of the flange structure of the present utility model.

The reference numerals in the above figures are: 1-polyvinyl pipe, 2-metal sleeve, 3-pin, 4-flange, 5-thickening layer, 6-baffle ring and 7-fiber reinforced layer.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that if the terms "first," "second," and the like are referred to in the description of the present application and the claims and the above figures, they are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, if the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are referred to, the indicated azimuth or positional relationship is based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

Further, in the present application, the terms "mounted," "configured," "provided," "connected," "sleeved," and the like are to be construed broadly if they relate to. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

Examples

The embodiment discloses a fiber reinforced polyethylene composite pipe, which comprises a polyethylene pipe 1, two flange structures respectively sleeved at two ends of the polyethylene pipe 1, and a fiber reinforced layer 7 wound on the polyethylene pipe 1 and the flange structures. I.e. the fibre reinforcement 7 is wound on both ends of the two flange structures, respectively, while the middle part is wound directly on the outside of the polyethylene-based pipe 1, as shown in fig. 1.

The fiber reinforcement layer 7 is formed by repeatedly winding continuous fibers. The outside of the continuous fiber is wrapped with a layer of polyethylene material, and the continuous fiber is heated before winding to soften the polyethylene material thereon, so that the wound continuous fiber can be adhered to the flange structure and the polyethylene pipe 1 to form a fiber reinforced layer 7.

In order to make the bonding between the flange structure and the polyethylene-based pipe 1 and the fiber reinforced layer 7 stronger, both flange structures are provided with a plurality of pins 3, and when the fiber reinforced layer 7 is wound and formed, the pins 3 are buried in the fiber reinforced layer 7, as shown in fig. 1.

The pin 3 and the fiber reinforced layer 7 are contained, so that the flange structure is firmly combined with the polyethylene pipe 1 and the fiber reinforced layer 7, the traction force born by the flange structure is improved, and the connection effect of the pipeline is prevented from being influenced by loosening of the flange structure during pipeline connection.

Specifically, as shown in fig. 2, the flange structure comprises a metal sleeve 2 sleeved on the outer side of a polyethylene pipe 1, a baffle ring 6 fixedly arranged on the outer side of the metal sleeve 2, and a flange plate 4 sleeved on the metal sleeve 2.

When the metal sleeve 2 is arranged, the metal sleeve 2 is in interference fit with the polyethylene-based pipe 1, so that the metal sleeve 2 and the polyethylene-based pipe 1 are not easy to loose. The baffle ring 6 is arranged on one side of the metal sleeve 2 close to the end part of the polyethylene-based pipe 1 in a welding mode, and is used for limiting the flange 4 and preventing the flange 4 from being separated from the metal sleeve 2 due to traction force in the pipeline connection process. The pin 3 is circumferentially arranged on the outer wall of the metal sleeve 2 in a welding manner and is perpendicular to the surface of the metal sleeve 2. The fibre-reinforced layer 7 is then wound between the flanges 4 of the two flange structures, as shown in fig. 1.

In this embodiment, the middle portion of the fiber reinforced layer 7 is fused with the polyethylene tube 1, and the pin 3 is embedded in the fiber reinforced layer 7, so that the fiber reinforced layer 7 can hold the pin 3 and further hold the metal sleeve 2, and the whole flange structure is combined with the polyethylene tube 1 and the fiber reinforced layer 7 more firmly.

In addition, thickening layers 5 are arranged on the outer sides of the two ends of the polyethylene-based pipe 1, and baffle rings 6 are arranged between the thickening layers 5 and the flange plates 4. I.e. the end of the thickening layer 5 closest to the polyethylene-based pipe 1, the thickening layer 5 may be turned out from the end of the polyethylene-based pipe 1, and the outer diameter of the thickening layer 5 is the same as the outer diameter of the stop ring 6, when specifically provided.

The flange structure can be further limited by arranging the thickening layer 5, so that the flange structure is further prevented from loosening. Meanwhile, the thickening layer 5 is formed by outwards turning over the end part of the polyethylene-based pipe 1, so that the end face of the thickening layer 5 is smoother, when two pipes are connected, the joint end faces are tightly attached, and the connection tightness between the pipes is improved.

It should be noted that all of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except mutually exclusive features and/or steps.

In addition, the foregoing detailed description is exemplary, and those skilled in the art, having the benefit of this disclosure, may devise various arrangements that, although not explicitly described herein, are within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims (7)

1. The fiber reinforced polyethylene composite pipe is characterized by comprising a polyethylene pipe (1), two flange structures respectively sleeved at two ends of the polyethylene pipe (1), and a fiber reinforced layer (7) wound on the polyethylene pipe (1) and the flange structures; and a plurality of pins (3) are arranged on the two flange structures, and the pins (3) are buried in the fiber reinforced layer (7).

2. The fiber reinforced polyethylene composite pipe according to claim 1, wherein the flange structure comprises a metal sleeve (2) sleeved outside the polyethylene base pipe (1), a baffle ring (6) fixedly arranged outside the metal sleeve (2), and a flange plate (4) sleeved on the metal sleeve (2); the baffle ring (6) is positioned on one side of the metal sleeve (2) close to the end part of the polyethylene-based pipe (1), the pin (3) is arranged on the outer wall of the metal sleeve (2), and the fiber reinforced layer (7) is wound between the flange plates (4) of the two flange structures.

3. Fiber reinforced polyethylene composite pipe according to claim 2, characterized in that the outer sides of the two ends of the polyethylene-based pipe (1) are provided with a thickening layer (5), and the baffle ring (6) is located between the thickening layer (5) and the flange plate (4).

4. A fibre reinforced polyethylene composite pipe according to claim 3, characterized in that both ends of the polyethylene-based pipe (1) are turned outwards to form the thickened layer (5).

5. Fiber reinforced polyethylene composite pipe according to claim 3 or 4, characterized in that the outer diameter of the thickened layer (5) is the same as the outer diameter of the baffle ring (6).

6. Fiber reinforced polyethylene composite pipe according to any of claims 2 to 4, characterized in that the pins (3) are circumferentially distributed on the outer wall of the metal jacket (2).

7. Fiber reinforced polyethylene composite pipe according to claim 6, characterized in that the pin (3) is perpendicular to the surface of the metal sleeve (2).