A plastic track with a soft surface layer fixed by rivet nails

Abstract

The application is a riveting nail fixed network soft surface layer plastic track, which comprises a plastic mixture layer formed by uniformly mixing plastic mixture, a shaped buffer layer is arranged in the plastic mixture layer, the shaped buffer layer and the plastic mixture in the middle and upper and lower layers are mutually glued into a sheet-shaped composite layer, and the shaped buffer layer is anchored on the ground layer together with the whole composite layer through an anchoring part. The application retains the physical and mechanical properties of the original material, improves the tensile and impact strength, and improves the durability of bending and resilience, avoids the fracture and fragmentation of the soft surface layer plastic material, rivets the grid net with plastic mixture on the ground layer by using the plastic riveting nail, avoids the curling and angle problems caused by degumming, greatly prolongs the service life of the soft plastic material, expands the application, and facilitates the development of new products in various application scenarios.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of plastic track, and particularly relates to a networked soft surface layer plastic track fixed by rivet nails. BACKGROUND

[0002] The plastic track, also known as all-weather track and field track, is composed of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber particles or PU particles, pigments, additives and fillers, has the characteristics of good flatness, good impact resistance, good rebound performance, good water permeability and stable physical properties, is beneficial to the exertion of athletes' speed and technology, and is a widely used sports facility at present.

[0003] However, the existing plastic track design has many problems. After being used for a certain period of time, the adhesion of the plastic track decreases, the friction during running and other movements causes the surface layer of the plastic track to move and dislocate, and then the phenomenon of peeling, even edge curling, corner lifting, breaking and fragmentation of the anti-skid surface layer of the plastic track occurs, which greatly affects the use effect of the plastic track.

[0004] In view of the above problems, the application provides a networked soft surface layer plastic track fixed by rivet nails, which is characterized in that a grid network is laid in the plastic mixture and is integrated with the plastic mixture, the problem of plastic breaking and fragmentation is overcome, the service life of the plastic track is prolonged, and the grid network bonded with the plastic mixture is firmly anchored and pressed on the ground by rivet nails, replacing the traditional method of being pasted on the ground by adhesive, and the problems of corner lifting and edge curling of the plastic soft surface layer are avoided. SUMMARY

[0005] The application aims to overcome the problems in the prior art and provide a networked soft surface layer plastic track fixed by rivet nails.

[0006] To achieve the above technical purposes and effects, the application adopts the following technical scheme:

[0007] A networked soft surface layer plastic track fixed by rivet nails comprises a plastic mixture layer formed by uniformly mixing a plastic mixture, a shaped buffer layer is arranged in the middle or bottom of the plastic mixture layer, the shaped buffer layer and the plastic mixture in the plastic mixture layer are mutually glued to form a sheet-shaped composite layer, and the shaped buffer layer is anchored to the ground layer together with the entire composite layer through an anchoring member.

[0008] Further, the shaped buffer layer is a grid network, and the grid network and the plastic mixture in the middle and upper and lower layers are mutually glued to form a sheet-shaped networked plastic soft surface layer.

[0009] Further, the grid network is composed of plastic, resin or fiber and formed into a flat strip, and the grid networks are integrally stressed by being freely welded or bonded.

[0010] Further, the surface of the plastic soft surface layer is formed with anti-skid strips or patterns.

[0011] Further, the anchor is a rivet, which comprises a rivet cover, a rivet tube and an expansion rod. The rivet tube is fixed to the lower end of the rivet cover and forms an integral structure. The rivet tube is implanted into the corresponding plastic soft surface layer and ground layer. The lower end of the rivet cover is crimped on the grid net. The middle part of the rivet cover and the rivet tube is a hollow cavity. The expansion rod is inserted into the rivet tube through the hollow cavity to form an interference fit.

[0012] Further, the rivet tube is a petal-shaped tube formed by a plurality of petals. Each petal has the freedom of outward deformation, which facilitates the outward deformation of the petal to form an interference fit when the expansion rod is inserted into the middle part.

[0013] Further, the end of the petal is in the shape of a sharp cone, which facilitates the implantation into the plastic soft surface layer and the ground layer. The surface of the petal is rough, which is used to improve the friction.

[0014] Further, the surface of the expansion rod is in the shape of a spiral tooth, which facilitates the improvement of the friction. The end of the expansion rod is in the shape of a sharp cone, which facilitates the insertion into the rivet tube.

[0015] Further, the rivet is anchored on the plastic soft surface layer through on-site construction or factory prefabrication.

[0016] The beneficial effects of the present application are:

[0017] The structure of the present application retains the physical and mechanical properties of the original material. The material is soft, elastic, weather-resistant and water-permeable. The tensile strength, impact strength, bending durability and resilience of the material are improved. The rupture and fragmentation of the soft surface layer plastic material are avoided. The grid net with plastic mixture is riveted on the ground layer by using a rivet made of plastic material, which replaces the traditional method of sticking on the ground by using glue. The problems of curling and angle lifting caused by glue separation are avoided. The service life of the soft plastic material is greatly prolonged. The grid net is laid in the plastic mixture to form a soft surface layer material. The structure of anchoring on the ground by using a rivet and the construction method are matched. The quality of the plastic track is improved. The service life is prolonged. The application is expanded. New products for various application scenarios can be developed on this basis. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the cross-sectional structure of the present application.

[0019] Figure 2 The figure is a schematic diagram of the grid net and the rivet of the present application.

[0020] Figure 3 This is a three-dimensional layered view of the present invention;

[0021] Figure 4 This is a schematic diagram of the rivet structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure in an embodiment of the present invention, in which the rivet cover is pre-installed in the plastic fixing block and then cooperates with the mesh.

[0023] The labels in the diagram are as follows: 1. Plastic mixture layer, 2. Ground layer, 3. Mesh net, 4. Rivet, 41. Rivet cap, 42. Rivet tube, 421. Leaf, 43. Tensioning rod, 5. Plastic fixing block. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figure 1 As shown, a soft-surface plastic running track with rivets includes a plastic mixture layer 1 formed by mixing a plastic mixture. A shaped buffer layer is provided in the middle or at the bottom of the plastic mixture layer 1. The shaped buffer layer and the plastic mixture in the plastic mixture layer 1 are bonded together to form a sheet-like composite layer. In this embodiment, the shaped buffer layer is anchored to the ground layer 2 along with the entire composite layer by anchors. The shaped buffer layer is located in the middle of the plastic mixture layer 1, and the shaped buffer layer is bonded together with the plastic mixture in the middle and above and below it to form a sheet-like composite layer.

[0026] The shaped buffer layer is a mesh 3. The mesh 3 is bonded to the plastic mixture in the middle and upper layers to form a sheet-like soft plastic surface layer. In this embodiment, the plastic mixture consists of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber granules or PU particles, pigments, additives, and fillers. Before laying the flat mesh 3, the lower layer of plastic mixture is laid and smoothed first, and then the mesh 3 and the upper layer of plastic mixture are laid. The plastic mixture should fully fill the mesh openings of the mesh 3, and appropriate force is applied and pressed according to specific engineering requirements. The cured mesh 3 and the plastic mixture are mutually bonded. The bonded structure forms a strong, integrated layer, known as the sheet-like flexible plastic surface layer. The mesh 3 plays a crucial role in force transmission, control, and absorption. When subjected to external impact, it provides further cushioning, reducing the mutual damage between plastic particles in the plastic mixture and preventing the debonding and fragmentation of the plastic mixture layer 1. Experiments show that the bond between the mesh 3 and the plastic mixture remains intact over a long period. The sheet-like flexible plastic surface layer combines the inherent mechanical properties of both plastic and mesh materials, such as softness, elasticity, aging resistance, and good water permeability, while also increasing impact resistance, tensile strength, and bending resistance, thus preventing breakage and fragmentation of the flexible plastic material.

[0027] The grid net 3 is formed into a flat strip by plastic, resin or fiber composite, wherein the fiber can adopt carbon fiber, plant fiber or chemical fiber, and the grid nets 3 are connected into an integral stress bearing covering net structure by free welding or bonding.

[0028] In the embodiment, if the grid net 3 is a thermoplastic plastic, it is appropriate to adopt the performance standard that it does not become soft at 100 degrees high temperature and does not freeze and become brittle at -60 degrees. When the flat strip bundle is formed, the shape of the flat strip bundle is flat, the width is not less than 10 mm, the thickness is less than 5 mm, and the edge is roughened. The flat strip bundle does not produce residual deformation after being subjected to a pulling force of 400 N. The mesh eye of the grid net 3 is polygonal, such as a quadrangular mesh eye or a hexagonal mesh eye, and the width and thickness of each side are the same. The size of the mesh eye should be appropriate to allow 10 units of rubber particles to pass through side by side. Tests show that, under the same plastic mixture material, the tensile capacity of the netted plastic soft surface layer in the embodiment is increased by 5-7 times compared with the conventional plastic mixture material without netting. For example, in the case of a netted plastic soft surface layer with a thickness of 14.5 mm and a width of 45 cm, no rupture occurs under the action of a force of 30 kg.

[0029] The surface of the netted plastic soft surface layer is formed with anti-skid strips or patterned patterns.

[0030] The anchor is a riveting nail 4. In the embodiment, the riveting nail 4 is made of a thermoplastic product, which is not fused by heat and not broken by cold, and has good toughness. The riveting nail 4 includes a riveting cover 41, a riveting pipe 42 and an expansion rod 43. The riveting pipe 42 is fixedly connected to the lower end of the riveting cover 41 and has an integral structure. In the embodiment, the thickness of the riveting cover 41 is not less than 15 mm, and the length of the riveting pipe 42 is greater than 40 mm, which can be adjusted according to the geological conditions. The outer diameter of the riveting pipe 42 is 12 mm. The hollow cavity of the riveting pipe 42 is a reverse tapered cavity, and the inner diameter gradually decreases from 9 mm to 5 mm from top to bottom. The riveting pipe 42 is implanted into the corresponding netted plastic soft surface layer and the ground layer 2, and the grid net 3 is fixed on the ground layer 2 together with the lower layer of plastic mixture. The lower end of the riveting cover 41 is press-connected to the grid net 3. The middle part of the riveting cover 41 and the riveting pipe 42 is a hollow cavity. The outer diameter of the expansion rod 43 is 8.5 mm, and the length is 60 mm. The expansion rod 43 is inserted into the riveting pipe 42 through the hollow cavity to form an interference fit, so that it cannot be pulled out and cannot be cut off, thereby ensuring the long-term use of the sheet-shaped netted plastic soft surface layer. Tests show that the 8 mm specification riveting nail 4 anchored to the ground does not break and cannot be pulled out under the action of a force of 28 kg, which is much more secure than the glue joint fixing method.

[0031] The riveting pipe 42 is a petal-shaped pipe surrounded by several petals 421, each of which has a freedom of outward deformation, and in this embodiment, the riveting pipe 42 is surrounded by two petals 421, which are deformed outward to form an interference fit when the expansion rod 43 is inserted thereinto.

[0032] The end of each petal 421 is in the shape of a pointed cone, which facilitates the implantation into the plastic netting soft surface layer and the ground layer 2, and the surface of each petal 421 is rough, which is used to increase the friction.

[0033] The surface of the expansion rod 43 is in the shape of a spiral tooth, which facilitates the increase of the friction, and the end of the expansion rod 43 is in the shape of a pointed cone, which facilitates the insertion into the riveting pipe 42.

[0034] The lower end surface of the riveting cover 41 and the grid net 3 are provided with a plastic fixing block 5, which is used to increase the area of the crimped grid net 3.

[0035] The area of the riveting cover 41 or the plastic fixing block 5 can at least cover the mesh of the grid net 3, and it is appropriate that it can cover at least two mesh eyes.

[0036] The riveting cover 41 is pre-set in a plastic fixing block 5, and the riveting pipe 42 extends out of the plastic fixing block 5, which facilitates the implantation into the plastic netting soft surface layer and the ground layer 2.

[0037] In this embodiment, when riveting, the mesh eyes of the exposed grid net 3 are aligned, a hole with a diameter of 12 mm and a depth of 60 mm is punched on the ground layer 2 using an impact drill, the riveting pin 4 is implanted, the riveting cover 41 is pressed on the surface of the grid net 3, the expansion rod 43 is inserted, and then it is flattened or cut flat, and then the plastic mixture is paved to cover the grid net 3, which can be completed; if the riveting pin 4 has been pre-fabricated on the sheet-shaped plastic netting soft surface layer, the on-site construction and assembly method is simpler, the cement mortar on the ground layer 2 is paved, the exposed end of the riveting pin 4 is pressed into the cement mortar and leveled, which can be completed; the above two methods are cast-in-place method and prefabricated method, respectively, and the structure of the present application can be realized, which is very suitable for the construction of plastic tracks, fitness tracks, etc., has low construction cost, short construction period, high durability, long service life, and can keep the track in a high integrity and high reliability state.

[0038] The structure of the present application can be used on the surface layer of high slopes and cliffs as a protective layer for rock climbing, can be used as a local protective layer of a speedboat or a small cruise ship, and can be used as a protective layer against collision of a wharf; can be used as a surface corrosion-resistant layer of a wooden station board at the edge of a water bank or a cliff; can be directly paved on an unhardened cement mortar surface, which is convenient for the paving of a site with high requirements for comfort and safety, such as a residential courtyard, a landscape community, and a fitness exercise site; and can be used as a paving product for outdoor leisure, such as a lawn or a beach, which has a wide application prospect.

[0039] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A soft-surface plastic running track with a mesh fixed by rivets, characterized in that, The system includes a plastic mixture layer (1) formed by mixing plastic mixtures. A shaped buffer layer is provided in the middle or at the bottom of the plastic mixture layer (1). The shaped buffer layer and the plastic mixture in the plastic mixture layer (1) are bonded together to form a sheet-like composite layer. The shaped buffer layer is anchored to the ground layer (2) along with the entire composite layer by anchors. The shaped buffer layer is a mesh (3). The mesh (3) is bonded together with the plastic mixture in the middle and the upper and lower layers to form a sheet-like soft plastic surface layer. The anchors are rivets (4). The rivet (4) includes a rivet cap (41), a rivet tube (42), and a tensioning rod (43). The rivet tube (42) is fixed to the lower end of the rivet cap (41) and forms an integral structure. The rivet tube (42) is inserted into the corresponding plastic soft surface layer and ground layer (2) of the distribution network. The lower end of the rivet cap (41) is pressed onto the mesh (3). The middle of the rivet cap (41) and the rivet tube (42) is a hollow cavity. The tensioning rod (43) is inserted into the rivet tube (42) from the rivet cap (41) through the hollow cavity to form an interference fit.

2. The soft-surface plastic running track with rivets fixed according to claim 1, characterized in that, The mesh (3) is composed of plastic, resin or fiber composite to form a flat strip, and the mesh (3) is formed into an integral stress-bearing mesh structure by free welding or bonding.

3. The soft-surface plastic running track with rivets fixed according to claim 2, characterized in that, The surface of the soft plastic layer of the power distribution network is formed with anti-slip strips or patterns.

4. The soft-surface plastic running track with rivets fixed according to claim 1, characterized in that, The rivet tube (42) is a petal-shaped tube formed by several petals (421). Each petal (421) has the freedom to deform outward, which facilitates the expansion rod (43) to deform outward to form an interference fit when inserted into the middle.

5. The soft-surface plastic running track with rivets fixed according to claim 4, characterized in that, The end of the leaflet (421) is cone-shaped, which makes it easy to be implanted into the soft plastic surface layer and the ground layer (2) of the power distribution network. The surface of the leaflet (421) is rough to improve friction.

6. The soft-surface plastic running track with rivets fixed according to claim 5, characterized in that, The surface of the tension rod (43) is a helical toothed rough surface, which facilitates the increase of friction. The end of the tension rod (43) is a pointed cone shape, which facilitates insertion into the rivet tube (42).

7. The soft-surface plastic running track with rivets fixed according to claim 1 or 6, characterized in that, The rivets (4) are anchored on-site or prefabricated in the factory onto the soft plastic surface of the power distribution network.

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