FRPP multi-layer anti-oxidation winding pipe with reinforcing structure

By incorporating reinforcing mechanisms and composite layers within FRPP pipes, the problem of insufficient strength in FRPP pipes is solved, enabling higher-strength construction applications and enhancing impact resistance and structural stability.

CN223469856UActive Publication Date: 2025-10-24GUANGDONG LIANFENG TECH CO LTD
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Patent Information

Application Number
CN202422831774.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-24
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Existing FRPP pipes are made of a single polypropylene material. The pipe body is not strong enough and has low strength, which limits its use scenarios. Especially in high-intensity construction, it is easy to be squeezed, deformed or damaged by external forces.

Method used

A reinforcing mechanism, including a hollow groove and an outward protruding ring, is set inside the polypropylene layer, and is equipped with metal supports and a reinforcing composite layer, specifically a polyurethane layer, a glass fiber layer and a polyethylene layer, to enhance the overall structural strength and impact resistance.

Benefits of technology

It improves the structural strength and impact resistance of FRPP spiral wound pipe, making it suitable for more high-intensity construction needs and avoiding deformation and damage caused by external forces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of FRPP pipes, in particular to an FRPP multi-layer antioxidant winding pipe with a reinforcing structure, which comprises a polypropylene layer, the reinforcing structure is arranged in the polypropylene layer, a reinforcing composite layer is further arranged on the inner wall of the polypropylene layer, the reinforcing structure comprises a hollow groove, and the hollow groove is formed in the inner wall of the polypropylene layer. According to the utility model, the outer wall of the polypropylene layer is provided with a plurality of groups of convex outer convex rings, and the outer convex rings are matched with the inner metal supporting pieces, so that the overall strength of the polypropylene layer can be improved; the structural strength of the interior of the winding pipe can be enhanced by arranging a glass fiber layer and a polyethylene layer in the polypropylene layer, the structural strength of the winding pipe can be enhanced from the outer wall and the inner wall of the winding pipe in the mode, and the situation that a pipe body of the FRPP winding pipe is extruded, deformed and damaged due to the fact that the FRPP winding pipe is subjected to external force is avoided; and the FRPP winding pipe can meet more high-strength construction requirements.
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Description

TECHNICAL FIELD

[0001] The utility model relates to FRPP pipe technical field, concretely relates to a FRPP multilayer antioxidant winding pipe with reinforcing structure. BACKGROUND

[0002] FRPP multilayer antioxidant winding pipe refers to the multilayer winding pipe made of reinforced polypropylene (FRPP) material. This pipe design is used to enhance corrosion resistance and antioxidant property, and is commonly used in chemical industry, agriculture, drainage and construction fields.

[0003] However, the existing FRPP pipe is mostly composed of single polypropylene material, and the pipe body itself is not strong enough after preparation, and the pipe body strength is low, which limits its use scene and cannot be applied to high-strength construction use. In addition, the pipe body is easily extruded and deformed due to external force during use, and even damaged in severe cases, so there is still some deficiency.

[0004] Therefore, it is necessary to invent a FRPP multilayer antioxidant winding pipe with reinforcing structure. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a FRPP multilayer antioxidant winding pipe with reinforcing structure to solve the problem that the existing FRPP pipe is mostly composed of single polypropylene material, and the pipe body itself is not strong enough after preparation, and the pipe body strength is low, which limits its use scene and cannot be applied to high-strength construction use.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a FRPP multilayer antioxidant winding pipe with reinforcing structure, comprising a polypropylene layer, a reinforcing mechanism is arranged inside the polypropylene layer, and a reinforcing composite layer is further arranged on the inner wall of the polypropylene layer.

[0007] Preferably, the reinforcing mechanism comprises a hollow groove, a plurality of hollow grooves are arranged in the polypropylene layer in an array manner, and an outer protruding ring is further arranged on the outer wall of the polypropylene layer.

[0008] Preferably, a plurality of outer protruding rings are arranged uniformly in an array manner, and an inner support groove is arranged in the inside of the outer protruding ring.

[0009] Preferably, a metal support piece for supporting the outer protruding ring is arranged on the inner wall of the inner support groove, and the outer wall top end of the metal support piece is matched with the inner wall top end of the inner support groove.

[0010] Preferably, positioning clamping grooves are arranged at both sides of the inner wall of the inner support groove and correspond to the positions of the two ends of the metal support piece, the two ends of the metal support piece are clamped in the inner wall of the positioning clamping groove, and the two ends of the metal support piece are arranged in a bent mode.

[0011] Preferably, a clamping block is integrally arranged at the bottom end of the inner wall of the inner support groove, and the two ends of the clamping block abut against the inner wall of the metal support piece.

[0012] Preferably, the reinforcing composite layer comprises a polyurethane layer, the outer wall of the polyurethane layer is fixed to the inner wall of the polypropylene layer, and the thickness size of the polypropylene layer is greater than that of the polyurethane layer.

[0013] Preferably, a glass fiber layer is fixed to the inner wall of the polyurethane layer, a polyethylene layer is fixed to the inner wall of the glass fiber layer, and the thickness size of the glass fiber layer is smaller than that of the polyethylene layer.

[0014] The utility model discloses the beneficial effect is:

[0015] In the utility model, the outer wall of the polypropylene layer is provided with a plurality of groups of convex outer convex rings, and the metal support piece in the inside can improve the strength of the polypropylene layer as a whole, and the inside of the polypropylene layer can also enhance the structural strength of the inside of the winding pipe through the glass fiber layer and the polyethylene layer arranged, the structural strength of the winding pipe can be enhanced from the outer wall and the inner wall respectively through the above-mentioned mode, the FRPP winding pipe can be suitable for more high-strength construction demand. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the partial cross section structure schematic drawing of the utility model;

[0017] Figure 2 It is the whole three-dimensional structure schematic drawing of the utility model;

[0018] Figure 3 It is the partial cross section structure schematic drawing of the polypropylene layer in the utility model;

[0019] Figure 4 It is the utility model Figure 3 The structure schematic drawing of the enlarged A in the utility model.

[0020] In the drawing: 100, polypropylene layer;110, hollow groove;120, inner support groove;130, outer convex ring;140, clamping block;150, metal support piece;160, positioning clamping groove;200, polyurethane layer;300, glass fiber layer;400, polyethylene layer. CONCRETE IMPLEMENTATION

[0021] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0022] Referring to the drawings Figures 1-4 The utility model provides a kind of FRPP multilayer antioxidant winding pipe with reinforcing structure, including polypropylene layer 100, the inside of polypropylene layer 100 is provided with reinforcing mechanism, reinforcing mechanism includes hollow slot 110, multiple hollow slots 110 are all opened in the inside of polypropylene layer 100 by array mode, and the hollow slot 110 opened is to reduce the weight of polypropylene layer 100, the outer wall of polypropylene layer 100 is also provided with outer convex ring 130, multiple outer convex rings 130 are evenly arranged by array mode, and the outer convex ring 130 is set to avoid the outer wall of polypropylene layer 100 and excessive contact with the outside, so as to improve the wear resistance of polypropylene layer 100, while outer convex ring 130 can improve the strength of the outer wall of polypropylene layer 100, inner support groove 120 is all opened in the inside of outer convex ring 130 of polypropylene layer 100, the inner wall of inner support groove 120 is all provided with the metal brace piece 150 for supporting outer convex ring 130, the outer wall top end of metal brace piece 150 is consistent with the inner wall top end of inner support groove 120, and the inner support groove 120 is set to install metal brace piece 150, and the metal brace piece 150 can be used metal material, and the material type of metal is selected according to use and specific strength requirement, and metal brace piece 150 can support outer convex ring 130 from the inner wall of inner support groove 120, to improve the support strength of outer convex ring 130, positioning clamping groove 160 is all opened in the inner wall both sides of inner support groove 120 and the corresponding position of metal brace piece 150 both ends, and the both ends of metal brace piece 150 are all clamped in the inner wall of positioning clamping groove 160, and the both ends of metal brace piece 150 are all bent and set, and the positioning clamping groove 160 is set to clamp and fix the both ends of metal brace piece 150, so that metal brace piece 150 does not shake in the inside of inner support groove 120, guarantee the support stability of metal brace piece 150 to outer convex ring 130, and metal brace piece 150 is bent and set to be better clamped in the inside of positioning clamping groove 160, the inner wall bottom end of inner support groove 120 is also integrally fixed with clamping block 140, the both ends of clamping block 140 and the inner wall both sides of metal brace piece 150 abut, and the clamping block 140 is set mainly to abut the inner wall both ends of metal brace piece 150, guarantee its stability of abutting with the inner wall of inner support groove 120;

[0023] The inner wall of the polypropylene layer 100 is further provided with a reinforcing composite layer, the reinforcing composite layer comprising a polyurethane layer 200, the outer wall of the polyurethane layer 200 being fixed to the inner wall of the polypropylene layer 100, the polyurethane layer 200 being composed of polyurethane material, and the polyurethane layer 200 being arranged to make the whole winding pipe have a certain deformation and be capable of absorbing impact to a certain extent, the thickness size of the polypropylene layer 100 being greater than the thickness size of the polyurethane layer 200, the inner wall of the polyurethane layer 200 being fixed to a glass fiber layer 300, the inner wall of the glass fiber layer 300 being fixed to a polyethylene layer 400, the thickness size of the glass fiber layer 300 being less than the thickness size of the polyethylene layer 400, the glass fiber layer 300 being arranged to significantly improve the tensile strength and rigidity of the pipe while keeping a low weight, and the polyethylene layer 400 being arranged to increase the chemical resistance and impact resistance of the pipe and enhance the performance of the pipe.

[0024] The use process of the utility model is as follows: in the utility model, the polypropylene layer 100 arranged can improve the pipe body strength outside the polypropylene layer 100 through the outer convex ring 130 and the metal support piece 150 built-in the inside of the outer convex ring 130, the metal support piece 150 end portion arranged to bend through the cooperation of the clamping block 140 and the positioned clamping groove 160 can guarantee the stability of the metal support piece 150 in the inner support groove 120 inner wall, the polyurethane layer 200 arranged in the inside of the polypropylene layer 100 can improve the impact resistance of the pipe body, and the glass fiber layer 300 and the polyethylene layer 400 can improve the structural strength and chemical resistance of the pipe body inside.

[0025] The above, only is the preferred embodiment of the utility model, any skilled person in the art can utilize the technical scheme elaborated above to modify the utility model or modify it as equivalent technical scheme. Therefore, any simple modification or equivalent replacement according to the technical scheme of the utility model is within the scope of protection required by the utility model.

Claims

1. An FRPP multi-layer antioxidant wrapped pipe with reinforced structure comprising a polypropylene layer (100), characterized in that: The inside of the polypropylene layer (100) is provided with a reinforcing mechanism, the reinforcing mechanism comprises a hollow slot (110), a plurality of the hollow slots (110) are opened in the inside of the polypropylene layer (100) in an array manner, the outer wall of the polypropylene layer (100) is also provided with an outer convex ring (130), a plurality of the outer convex rings (130) are uniformly arranged in an array manner, the inside of the polypropylene layer (100) is provided with an inner support slot (120), the inner wall of the inner support slot (120) is provided with a metal support (150) for supporting the outer convex ring (130), the outer wall top end of the metal support (150) is matched with the inner wall top end of the inner support slot (120), the inner wall of the inner support slot (120) is provided with a positioning clamping groove (160) at both sides and corresponding positions of the metal support (150), the both ends of the metal support (150) are clamped in the inner wall of the positioning clamping groove (160), and the both ends of the metal support (150) are bent to set the inner wall of the polypropylene layer (100) is also provided with a reinforcing composite layer.

2. The FRPP multi-layer antioxidant winding pipe with reinforced structure according to claim 1, characterized in that: The inner wall bottom end of the inner support slot (120) is also integrally fixed with a clamping block (140), the both ends of the clamping block (140) abut against the inner wall of the metal support (150).

3. The FRPP multi-layer antioxidant winding pipe with reinforced structure according to claim 1, characterized in that: The reinforcing composite layer comprises a polyurethane layer (200), the outer wall of the polyurethane layer (200) is fixed with the inner wall of the polypropylene layer (100), and the thickness size of the polypropylene layer (100) is greater than that of the polyurethane layer (200).

4. The FRPP multi-layer antioxidant winding pipe with reinforced structure according to claim 3, characterized in that: The inner wall of the polyurethane layer (200) is fixed with a glass fiber layer (300), the inner wall of the glass fiber layer (300) is fixed with a polyethylene layer (400), and the thickness size of the glass fiber layer (300) is smaller than that of the polyethylene layer (400).