High elasticity plastic track

Abstract

The utility model discloses a high elasticity plastic track, including base layer, the base layer upper surface is paved with anti -crack fibre layer, the upper surface of anti -crack fibre layer is provided with the elastic layer, the upper surface of elastic layer is provided with micro air bag structure, the upper surface of micro air bag structure is provided with surface layer. The utility model, concrete base layer provides rigid support, and high permeation type resin primer forms double bonding through the osmosis effect with base layer, anti -crack fibre layer, avoids interlayer peeling, and polyester fibre mesh cloth utilizes stress bridging effect, and the shrinkage stress or crack tip stress of base layer is dispersed to greater range, and the flexible deformation capacity of fluorine silicon anti -crack flow development fibre mortar is cooperated, prevents crack and reflects upwards, realizes the balance of rigid support and flexible anti -crack.

Description

Technical Field

[0001] This utility model relates to the field of plastic running track technology, specifically a high-elasticity plastic running track. Background Technology

[0002] Plastic running tracks are an indispensable and important facility in modern athletic fields. Compared with traditional dirt tracks, they have advantages such as good elasticity, slip resistance, wear resistance, shock absorption, easy maintenance, bright colors, and a neat and tidy appearance.

[0003] The existing announcement number CN205205612U discloses a plastic running track, belonging to the field of sports field technology. It provides a plastic running track with a simple structure that ensures rapid drainage, prevents water accumulation, and does not affect the normal use of the track. The technical solution adopted is that a water collection trough is set on the bottom layer, and multiple drainage holes are set at the bottom of the water collection trough. Drainage pipes are installed on the drainage holes, and the bottom of the drainage pipes extends into the soil. The water collection trough is covered with wire mesh, a base layer is set on the bottom layer, and a surface layer is set on the base layer.

[0004] While existing technologies achieve good drainage, their elasticity is relatively poor. Therefore, we propose a highly elastic plastic running track. Utility Model Content

[0005] The purpose of this invention is to provide a highly elastic plastic running track to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-elasticity plastic running track, comprising a base layer, an anti-crack fiber layer laid on the upper surface of the base layer, an elastic layer disposed on the upper surface of the anti-crack fiber layer, a micro-airbag structure disposed on the upper surface of the elastic layer, and a surface layer disposed on the upper surface of the micro-airbag structure.

[0007] Preferably, the base layer is a concrete layer; the crack-resistant fiber layer is a high-strength polyester fiber mesh.

[0008] Preferably, the elastic layer consists of an elastic upper layer, a polyester fiber cloth, and an elastic lower layer, wherein both the elastic upper layer and the elastic lower layer are made of SEBS-based thermoplastic elastomer.

[0009] Preferably, the micro-airbag structure is made of closed-cell polyurethane foam, and the outside of the closed-cell polyurethane foam is covered with a TPU film.

[0010] Preferably, the surface layer is a self-textured polyurethane adhesive layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The concrete base layer provides rigid support, while the high-penetration resin primer forms a double bond with the base layer and the crack-resistant fiber layer through penetration, preventing interlayer delamination. The polyester fiber mesh utilizes the stress bridging effect to disperse the shrinkage stress of the base layer or the stress at the crack tip over a wider area. Combined with the flexible deformation capability of the fluorosilicone crack-resistant fiber mortar, it prevents cracks from reflecting upwards, achieving a balance between rigid support and flexible crack resistance.

[0013] 2. The elastic layer adopts a gradient design with a high-density lower layer and a low-density upper layer. The elastic lower layer provides strong support to ensure the track does not collapse, while the elastic upper layer provides flexible cushioning, initially absorbing the impact of sports activities. When the micro-air bladders within the closed-cell polyurethane foam are compressed, the internal air is compressed and stores energy. After unloading, the air expands, propelling the material to rebound quickly, forming a double cushioning effect with the elastic layer. This reduces sports injuries while ensuring sports efficiency. Polyester fiber fabric is sandwiched between the elastic upper and lower layers, inhibiting the propagation of micro-cracks in the elastic layer itself, while also improving the overall integrity between layers and preventing the elastic layer from delaminating due to repeated deformation.

[0014] 3. The TPU film on the outside of the micro-airbag structure has both sealing and adhesive properties: on the one hand, it blocks water vapor and oxygen from entering the airbag, preventing the airbag from aging and breaking; on the other hand, after surface treatment, it forms a firm bond with the surface adhesive, avoiding delamination between layers and ensuring the overall structural stability. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Base layer; 2. Crack-resistant fiber layer; 3. Elastic layer; 4. Micro-airbag structure; 5. Surface layer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0019] Please see Figure 1 In this embodiment of the present invention, a high-elasticity plastic running track includes a base layer 1, an anti-crack fiber layer 2 is laid on the upper surface of the base layer 1, an elastic layer 3 is provided on the upper surface of the anti-crack fiber layer 2, a micro-airbag structure 4 is provided on the upper surface of the elastic layer 3, and a surface layer 5 is provided on the upper surface of the micro-airbag structure 4.

[0020] The base layer 1 is a concrete layer; the crack-resistant fiber layer 2 is made of high-strength polyester fiber mesh, combined with fluorosilicone crack-resistant flowable fiber mortar, forming a crack-resistant system that combines rigidity and flexibility. After the base layer is ground smooth, a high-penetration resin primer is applied to enhance adhesion. The mesh is fully laid and pressed into the wet mortar, with an overlap width of ≥100mm. An additional layer of reinforcing mesh is added at the inside and outside corners. Through the stress dispersion effect of the fiber mesh, the reflection of base cracks can be suppressed, reducing the risk of runway cracking.

[0021] The elastic layer 3 consists of an elastic upper layer, a polyester fiber fabric, and an elastic lower layer. The elastic upper layer has a density of 0.8 g / cm³. 3 (buffer layer) and elastic underlayer (density 0.9 g / cm³) 3 The high-elasticity layer is made of SEBS-based thermoplastic elastomer.

[0022] The micro-airbag structure 4 uses a closed-cell polyurethane foam. When the airbag is compressed, the air is compressed and stored, and it rebounds quickly after being unloaded. The outside of the closed-cell polyurethane foam is covered with a TPU film.

[0023] The surface layer 5 is a self-textured polyurethane adhesive layer.

[0024] The working principle of this invention is as follows: the concrete base layer provides rigid support, and the high-penetration resin primer forms a double bond with the base layer and the crack-resistant fiber layer through penetration, preventing interlayer delamination. The polyester fiber mesh utilizes the stress bridging effect to disperse the shrinkage stress of the base layer or the stress at the crack tip to a wider range. Combined with the flexible deformation capability of the fluorosilicone crack-resistant fiber mortar, it prevents cracks from reflecting upwards, achieving a balance between rigid support and flexible crack resistance.

[0025] The elastic layer employs a gradient design with a high-density lower layer and a low-density upper layer. The lower elastic layer provides strong support to ensure the track does not collapse, while the upper elastic layer provides flexible cushioning, initially absorbing the impact of sports activities. When the micro-air bladders within the closed-cell polyurethane foam are compressed, they store energy. Upon unloading, the air expands, propelling the material to rebound rapidly, forming a dual cushioning effect with the elastic layer. This reduces sports injuries while ensuring athletic efficiency. Polyester fiber fabric is sandwiched between the upper and lower elastic layers, inhibiting the propagation of micro-cracks within the elastic layer itself and enhancing the overall integrity between layers, preventing the elastic layer from delaminating due to repeated deformation.

[0026] The TPU film on the outside of the micro-airbag structure has both sealing and adhesive properties: on the one hand, it blocks water vapor and oxygen from entering the airbag, preventing the airbag from aging and breaking; on the other hand, after surface treatment, it forms a firm bond with the surface adhesive, avoiding interlayer delamination and ensuring the overall structural stability.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-elasticity plastic running track, comprising a base layer (1), characterized in that: The base layer (1) is covered with a crack-resistant fiber layer (2), the crack-resistant fiber layer (2) is provided with an elastic layer (3) on the upper surface, the elastic layer (3) is provided with a micro airbag structure (4) on the upper surface, and the micro airbag structure (4) is provided with a surface layer (5) on the upper surface.

2. The high-elasticity plastic running track according to claim 1, characterized in that: The base layer (1) is a concrete layer; the crack-resistant fiber layer (2) is a high-strength polyester fiber mesh.

3. The high-elasticity plastic running track according to claim 1, characterized in that: The elastic layer (3) consists of an elastic upper layer, a polyester fiber cloth and an elastic lower layer, both of which are made of SEBS-based thermoplastic elastomer.

4. The high-elasticity plastic running track according to claim 1, characterized in that: The micro-airbag structure (4) is made of closed-cell polyurethane foam, and the outside of the closed-cell polyurethane foam is covered with a TPU film.

5. A high-elasticity plastic running track according to claim 1, characterized in that: The surface layer (5) is a self-textured polyurethane adhesive layer.

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