Reinforced PVC water supply pipe

Abstract

The utility model relates to the technical field of water supply pipes, and discloses a reinforced PVC water supply pipe which comprises a PVC inner layer, a reinforced buffer layer, a sound insulation layer and a PVC outer layer which are sequentially arranged from inside to outside, and the reinforced buffer layer comprises a rigid reinforced framework and an elastic buffer layer filled in the rigid reinforced framework. The rigid reinforcing framework comprises a plurality of splayed supporting pieces arranged in the circumferential direction, and inner reinforcing pieces are arranged in the splayed supporting pieces. The reinforcing buffer layer is arranged, so that the overall strength and the impact resistance buffer capacity of the pipe are enhanced, and the sound insulation effect of the pipe is improved through the sound insulation layer.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply pipe production, in particular to a reinforced PVC water supply pipe. Background Art

[0002] PVC water supply pipes are made of polyvinyl chloride resin as the main raw material, with certain additives added, and are obtained by extrusion or injection molding. They are widely used in construction / urban water supply pipes, water treatment pipes in water treatment plants, and engineering pipes such as garden irrigation and well drilling. The existing PVC water supply pipes are a type of composite pipe. The pressure bearing capacity of PVC water supply pipes made of a single material is insufficient. When used in special environments such as underground burial, they are easily deformed by external forces, which reduces their service life. In addition, the sound insulation effect of PVC water supply pipes made of a single material is poor, and there is a tendency for water flow noise to be heard when there is water flowing inside. Utility Model Content

[0003] The purpose of the utility model is to provide a reinforced PVC water supply pipe to solve the problem of insufficient pressure resistance and sound insulation effect of the pipe.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a reinforced PVC water supply pipe, comprising a PVC inner layer, a reinforced buffer layer, a sound insulation layer and a PVC outer layer arranged in sequence from the inside to the outside, the reinforced buffer layer comprising a rigid reinforced skeleton and an elastic buffer layer filled in the rigid reinforced skeleton, the rigid reinforced skeleton comprising a plurality of circumferentially arranged figure-eight support plates, and an internal reinforcement plate is provided inside the figure-eight support plate.

[0005] Furthermore, the inner reinforcement plate includes a first reinforcement plate arranged at the upper part and a second reinforcement plate arranged at the lower part, the cross-section of the first reinforcement plate is an inverted parabolic structure, and the second reinforcement plate is an inwardly concave arc structure, the upper ends of the first reinforcement plate and the second reinforcement plate are connected to the inner wall of the eight-shaped support plate, and the lowest point of the first reinforcement plate is connected to the lowest point of the second reinforcement plate.

[0006] Furthermore, the sound insulation layer includes a sound-absorbing cotton layer and a first carbon fiber layer and a second carbon fiber layer arranged on both sides of the sound-absorbing cotton layer.

[0007] Furthermore, the elastic buffer layer is one of a rubber elastomer or a polyurethane thermoplastic elastomer.

[0008] Furthermore, the outer periphery of the sound insulation layer is provided with a convex strip with an inverted U-shaped cross section, and the outer surface of the PVC outer layer is provided with a groove matching the convex strip.

[0009] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0010] The utility model increases the strength of the pipe by arranging a reinforced buffer layer, utilizing the rigid reinforced skeleton in the reinforced buffer layer, and improves the impact resistance and buffering capacity by utilizing the elastic buffer layer in the reinforced buffer layer; the rigid reinforced skeleton has an eight-shaped support plate and an inner reinforcing plate arranged therein, and has good strength; and by arranging a sound insulation layer, the pipe has good sound absorption and sound insulation effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a reinforced PVC water supply pipe of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the enhanced buffer layer of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the sound insulation layer of the utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the PVC outer layer of the utility model;

[0015] In the figure: 1-PVC inner layer, 2-reinforced buffer layer, 21-rigid reinforced skeleton, 22-elastic buffer layer, 211-figure eight support plate, 212-first reinforcement plate, 213-second reinforcement plate, 3-sound insulation layer, 31-sound absorbing cotton layer, 32-first carbon fiber layer, 33-second carbon fiber layer, 34-convex strips, 4-PVC outer layer, 41-grooves. DETAILED DESCRIPTION

[0016] In order to make the technical personnel of the technical field better understand the present utility model scheme, the technical scheme in the present utility model embodiment will be clearly and completely described below in conjunction with the drawings in the present utility model embodiment. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by the technical personnel in the technical field belonging to the present utility model. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0017] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] like Figure 1 As shown, a reinforced PVC water supply pipe comprises a PVC inner layer 1, a reinforced buffer layer 2, a sound insulation layer 3 and a PVC outer layer 4 arranged in sequence from the inside to the outside, the reinforced buffer layer 2 comprises a rigid reinforced skeleton 21 and an elastic buffer layer 22 filled in the rigid reinforced skeleton 21, the rigid reinforced skeleton 21 comprises a plurality of circumferentially arranged eight-shaped support sheets 211, and an inner reinforcement sheet is arranged inside the eight-shaped support sheet 211. Preferably, the elastic buffer layer 22 is one of a rubber elastomer or a polyurethane thermoplastic elastomer.

[0019] like Figure 2 As shown, the inner reinforcing sheet includes a first reinforcing sheet 212 disposed at the upper part and a second reinforcing sheet 213 disposed at the lower part. The cross section of the first reinforcing sheet 212 is an inverted parabola structure, and the second reinforcing sheet 213 is an arc structure concave inwardly. The upper ends of the first reinforcing sheet 212 and the second reinforcing sheet 213 are connected to the inner wall of the eight-shaped support sheet 211, and the lowest point of the first reinforcing sheet 212 is connected to the lowest point of the second reinforcing sheet 213. The first reinforcing sheet 212 and the second reinforcing sheet 213 are welded to the eight-shaped support sheet 211 as a whole. The inner reinforcing sheet strengthens the skeleton structure, strengthens the strength of the pipe, and improves the pressure bearing capacity.

[0020] like Figure 3 As shown, the sound insulation layer 3 includes a sound absorbing cotton layer 31 and a first carbon fiber layer 32 and a second carbon fiber layer 33 arranged on both sides of the sound absorbing cotton layer 31. Carbon fiber has high axial strength and modulus. By strengthening the sound insulation layer 3 with the first carbon fiber layer 32 and the second carbon fiber layer 33, the overall strength of the PVC water supply pipe can be improved.

[0021] like Figure 3 , Figure 4 As shown, the outer periphery of the sound insulation layer 3 is provided with a convex strip 34 with an inverted U-shaped cross section, and the outer surface of the PVC outer layer 4 is provided with a groove 41 that matches the convex strip 34. This structure is used to strengthen the structure of the sound insulation layer 3 and improve the tightness of the connection between the sound insulation layer 3 and the PVC outer layer 4.

[0022] The utility model arranges a reinforced buffer layer 2, utilizes a rigid reinforced skeleton 21 in the reinforced buffer layer 2 to increase the strength of the pipe, utilizes an elastic buffer layer 22 in the reinforced buffer layer 2 to improve the impact resistance and buffering capability, the rigid reinforced skeleton 21 has an eight-shaped support sheet 211 and an inner reinforcement sheet arranged therein, and has excellent strength; the sound insulation layer 3 is a sound-absorbing cotton layer 31, and has excellent sound absorption and sound insulation effects.

[0023] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A reinforced PVC water supply pipe, characterized in that: It includes a PVC inner layer, a reinforced buffer layer, a sound insulation layer and a PVC outer layer which are arranged in sequence from the inside to the outside. The reinforced buffer layer includes a rigid reinforced skeleton and an elastic buffer layer filled in the rigid reinforced skeleton. The rigid reinforced skeleton includes a plurality of circumferentially arranged figure-eight support sheets, and an inner reinforcement sheet is provided inside the figure-eight support sheet.

2. A reinforced PVC water supply pipe according to claim 1, characterized in that: The inner reinforcement sheet includes a first reinforcement sheet arranged at the upper part and a second reinforcement sheet arranged at the lower part. The cross-section of the first reinforcement sheet is an inverted parabolic structure, and the second reinforcement sheet is an inwardly concave arc structure. The upper ends of the first reinforcement sheet and the second reinforcement sheet are connected to the inner wall of the eight-shaped support sheet, and the lowest point of the first reinforcement sheet is connected to the lowest point of the second reinforcement sheet.

3. The reinforced PVC water supply pipe according to claim 1, characterized in that: The sound insulation layer comprises a sound absorbing cotton layer and a first carbon fiber layer and a second carbon fiber layer arranged on both sides of the sound absorbing cotton layer.

4. The reinforced PVC water supply pipe according to claim 1, characterized in that: The elastic buffer layer is one of a rubber elastomer and a polyurethane thermoplastic elastomer.

5. The reinforced PVC water supply pipe according to claim 1, characterized in that: The outer periphery of the sound insulation layer is provided with a convex strip with an inverted U-shaped cross section, and the outer surface of the PVC outer layer is provided with a groove matched with the convex strip.

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