Anti-oxidation PP cold and hot water pipe
By adding an anti-oxidation layer, an anti-bending layer, and a filling elastic strip to the outside of PP hot and cold water pipes, the problem of the lack of anti-oxidation and pressure-resistant structures on the outside of PP hot and cold water pipes is solved, improving the anti-oxidation and pressure-resistant capabilities, extending the service life, and improving the heat insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN GUOCHAO NEW MATERIALS CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-06-09
Smart Images

Figure CN224339647U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PP hot and cold water pipe technology, and in particular to an anti-oxidation PP hot and cold water pipe. Background Technology
[0002] PP pipe is a non-toxic, hygienic, high-temperature resistant, and recyclable pipe type. It is mainly used in indoor hot and cold water supply systems of buildings and is also widely used in heating systems. The characteristics of PP pipe are rust-free, wear-resistant, scale-free, reduced vibration and noise, freeze-crack resistant (PP pipe will freeze and crack at temperatures above -20℃, and will decompose in high-temperature working environments above 70℃, with an operating temperature range of -20℃ to 70℃), anti-condensation, low heat loss, simple installation, and long service life. There are three connection methods: welding, end-edge welding, and dissimilar material connection.
[0003] However, the external structure of existing PP hot and cold water pipes is relatively simple. The external structure of PP hot and cold water pipes lacks certain anti-oxidation and anti-pressure structures, which affects the service life of PP hot and cold water pipes. Utility Model Content
[0004] The purpose of this invention is to solve the problem mentioned in the background art that PP hot and cold water pipes lack certain anti-oxidation and anti-pressure structures on the outside, and to propose an anti-oxidation PP hot and cold water pipe.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An anti-oxidation PP hot and cold water pipe includes a main body, an insulation layer fixedly connected to the outside of the main body, a heat insulation layer fixedly connected to the side of the insulation layer away from the main body, an anti-bending layer fixedly connected to the side of the heat insulation layer away from the insulation layer, an anti-oxidation layer provided on the side of the anti-bending layer away from the heat insulation layer, and a plurality of elastic strips filled between the anti-oxidation layer and the anti-bending layer.
[0007] Preferably, the insulation layer is made of polypropylene foam.
[0008] Preferably, the heat insulation layer is aluminum silicate containing mica.
[0009] Preferably, the flexural layer is a polypropylene layer.
[0010] Preferably, the anti-oxidation layer is made of polyvinylidene fluoride.
[0011] Preferably, the elastic strip is a thermoplastic elastomer.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. The anti-oxidation layer and elastic strip in this utility model can effectively improve the anti-oxidation and pressure resistance of PP hot and cold water pipes, thereby ensuring the service life of PP hot and cold water pipes;
[0014] 2. The thermal insulation layer in this utility model can ensure the thermal insulation capacity of the main pipe, the heat insulation layer can improve the heat insulation capacity of the main pipe, and the bending resistance layer can improve the bending resistance of the main pipe. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an anti-oxidation PP hot and cold water pipe proposed in this utility model.
[0016] In the diagram: 1. Main body, 2. Insulation layer, 3. Heat insulation layer, 4. Bending resistance layer, 5. Anti-oxidation layer, 6. Elastic strip. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Reference Figure 1 An anti-oxidation PP hot and cold water pipe includes a main body 1, and an insulation layer 2 is fixedly connected to the outside of the main body 1. The insulation layer 2 is a polypropylene plastic foam material used to improve the insulation capacity of the main body 1.
[0019] In this embodiment, a heat insulation layer 3 is fixedly connected to the side of the heat insulation layer 2 away from the main body 1. The heat insulation layer 3 is aluminum silicate containing mica, which is used to improve the heat insulation capacity of the main body 1. A bending resistance layer 4 is fixedly connected to the side of the heat insulation layer 3 away from the heat insulation layer 2. The bending resistance layer 4 is a polypropylene layer, which is used to improve the bending resistance of the main body 1.
[0020] In this embodiment, an anti-oxidation layer 5 is provided on the side of the anti-bending layer 4 away from the heat insulation layer 3. The anti-oxidation layer 5 is made of polyvinylidene fluoride material, which enhances the anti-oxidation ability of the main body 1.
[0021] In this embodiment, multiple elastic strips 6 are filled between the anti-oxidation layer 5 and the anti-bending layer 4. The elastic strips 6 are thermoplastic elastomers, which improve the compressive strength of the main body 1.
[0022] In this embodiment, the insulation layer 2 ensures the insulation capacity of the main body 1, the heat insulation layer 3 enhances the heat insulation capacity of the main body 1, and the bending resistance layer 4 enhances the bending resistance of the main body 1.
[0023] In this embodiment, the anti-oxidation layer 5 and the elastic strip 6 can effectively improve the anti-oxidation and pressure resistance of PP hot and cold water pipes, thereby ensuring the service life of PP hot and cold water pipes.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An oxidation-resistant PP hot and cold water pipe, comprising a main pipe body (1), characterized in that: The main body (1) is fixedly connected to the outside of the insulation layer (2). The side of the insulation layer (2) away from the main body (1) is fixedly connected to the heat insulation layer (3). The side of the heat insulation layer (3) away from the insulation layer (2) is fixedly connected to the anti-bending layer (4). The side of the anti-bending layer (4) away from the heat insulation layer (3) is provided with an anti-oxidation layer (5). Multiple elastic strips (6) are filled between the anti-oxidation layer (5) and the anti-bending layer (4).
2. The anti-oxidation PP hot and cold water pipe according to claim 1, characterized in that: The insulation layer (2) is a polypropylene plastic foam material.
3. The anti-oxidation PP hot and cold water pipe according to claim 1, characterized in that: The heat insulation layer (3) is aluminum silicate containing mica.
4. The anti-oxidation PP hot and cold water pipe according to claim 1, characterized in that: The bending-resistant layer (4) is a polypropylene layer.
5. The anti-oxidation PP hot and cold water pipe according to claim 1, characterized in that: The anti-oxidation layer (5) is made of polyvinylidene fluoride.
6. The anti-oxidation PP hot and cold water pipe according to claim 1, characterized in that: The elastic strip (6) is a thermoplastic elastomer.