CN212834845U - Plastic course of nai peeling off - Google Patents
Plastic course of nai peeling off Download PDFInfo
- Publication number
- CN212834845U CN212834845U CN202021306151.7U CN202021306151U CN212834845U CN 212834845 U CN212834845 U CN 212834845U CN 202021306151 U CN202021306151 U CN 202021306151U CN 212834845 U CN212834845 U CN 212834845U
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- Prior art keywords
- elastic layer
- layer
- foam particles
- asphalt
- lower elastic
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- 229920003023 plastic Polymers 0.000 title claims abstract description 45
- 239000004033 plastic Substances 0.000 title claims abstract description 45
- 239000010410 layer Substances 0.000 claims abstract description 184
- 239000002245 particle Substances 0.000 claims abstract description 72
- 239000006260 foam Substances 0.000 claims abstract description 69
- 239000010426 asphalt Substances 0.000 claims abstract description 37
- 239000002344 surface layer Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 229920002635 polyurethane Polymers 0.000 claims description 15
- 239000004814 polyurethane Substances 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 8
- 210000003850 cellular structure Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011344 liquid material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 6
- 210000000629 knee joint Anatomy 0.000 abstract description 4
- 210000004027 cell Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Road Paving Structures (AREA)
Abstract
The utility model relates to a stripping-resistant plastic track, belonging to the technical field of plastic tracks, comprising an asphalt base layer, an asphalt bottom sealing layer, an elastic layer and a surface layer; the asphalt base layer is arranged at the bottom, and the asphalt bottom sealing layer, the elastic layer and the surface layer are sequentially arranged at the upper part of the asphalt base layer; the elastic layer comprises a lower elastic layer and an upper elastic layer, and the upper elastic layer is arranged at the upper part of the lower elastic layer; be equipped with the foam particle layer down on the elastic layer, the foam particle layer includes a plurality of foam particles, and part or whole foam particle locate down between elastic layer and the last elastic layer, and the upper and lower both ends of the foam particle between lower elastic layer and the last elastic layer are embedded into respectively in last elastic layer and the lower elastic layer, and lower elastic layer and last elastic layer contact in the gap between the foam particle. This application plays the effect that prevents the interlaminar peeling off to the plastic course, improves the life of plastic course, has improved the plastic course simultaneously and has absorbed the shock energy at low temperature environment, protection sportsman's knee joint.
Description
Technical Field
The utility model relates to a resistant plastic course that peels off belongs to plastic course technical field.
Background
In 1961, the first polyurethane plastic track emerged, and the polyurethane plastic track is widely recognized by the sports community as one of the signs of the technological progress of the world sports facilities. In recent years, the use of polyurethane plastic runways has become more common, and the paving places comprise stadiums, schools, public fitness places and the like.
Existing plastic runways generally include multiple layers: the elastic sports shoes comprise a bottom layer, an elastic layer and a surface layer, wherein the surface layer is directly stressed when people move, the friction force borne by the surface layer is the largest, and the friction force borne by the elastic layer and the bottom layer below the surface layer is gradually reduced along with the farther distance from the surface layer. The existing plastic track is paved layer by layer, particularly an elastic layer, and because of the limitation of the raw material of the elastic layer, the elastic layer can not be paved thickly at one time during paving, and needs to be thinly coated in multiple times to finally form the elastic layer with the required thickness, therefore, after the plastic track is used for a long time, the plastic track can generate the phenomenon of interlayer peeling due to different friction forces between different layers, particularly the phenomenon of interlayer peeling of the elastic layer is the most serious, if the elastic layer is peeled, the surface of the plastic track can generate individual bulges, so that people moving on the plastic track can easily fall down, and the service life of the plastic track is greatly influenced; in addition, in cold winter, the effect of the runway to absorb shock is poor, which may affect the performance of athletes, and the impact force of people on the knee joints is large during the course of sports on the runway, which is easy to be injured. Therefore, there is a need for a plastic track that is not easily peeled off between layers, and at the same time, can improve the effect of absorbing shock of the plastic track in winter.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the above-mentioned problem of prior art, a resistant plastic course of peeling off is provided.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a stripping-resistant plastic track comprises an asphalt base layer, an asphalt sealing bottom layer, an elastic layer and a surface layer; the asphalt base layer is arranged at the bottom, and the asphalt bottom sealing layer, the elastic layer and the surface layer are sequentially arranged at the upper part of the asphalt base layer; the elastic layer at least comprises two layers, namely a lower elastic layer and an upper elastic layer, and the upper elastic layer is arranged at the upper part of the lower elastic layer; the lower elastic layer is provided with a foam particle layer, the foam particle layer comprises a plurality of foam particles, and part or all of the foam particles are arranged between the lower elastic layer and the upper elastic layer, the upper end and the lower end of the foam particles between the lower elastic layer and the upper elastic layer are respectively embedded into the upper elastic layer and the lower elastic layer, and the lower elastic layer and the upper elastic layer are contacted in gaps among the foam particles.
On the basis of the technical scheme, the utility model discloses a reach the convenience of use and the stability of equipment, can also make following improvement to foretell technical scheme:
further, the number density of the foam particles on the lower elastic layer, the upper end of which is not embedded in the upper elastic layer, is less than that of the foam particles embedded in the upper elastic layer.
Further, the laying mode of the lower elastic layer and the foam particle layer is as follows: adding foam particles in the process of raw material proportioning of the lower elastic layer, and stirring; after stirring, pouring the raw materials of the lower elastic layer on the asphalt sealing bottom layer, leveling and curing; the raw material of the lower elastic layer is polyurethane liquid raw material.
Further, the density of the foam particles is 0.5-1.0g/cm3(ii) a The density of the polyurethane liquid raw material is 1.1-1.3g/cm3。
Furthermore, the particle size of the foam particles is 3-5 mm.
Further, the cell structure of the foam particles is an open cell structure and/or a closed cell structure.
Further, the thickness of the asphalt base layer is 80-150 mm.
Further, the thickness of the asphalt sealing bottom layer is 2-5 mm.
Further, the thickness of the lower elastic layer is 4-9 mm.
Further, the thickness of the upper elastic layer is 4-9 mm.
Furthermore, the thickness of the surface layer is 2-3 mm.
The utility model has the advantages that: the foam particle layer is arranged between the elastic layers of the plastic track, and the upper end and the lower end of the foam particle are respectively embedded into the upper elastic layer and the lower elastic layer, so that the bonding force between the plastic track layers is improved, the stripping phenomenon of the plastic track in the use process is reduced, and the service life of the plastic track is prolonged; meanwhile, the foam particles improve the elasticity and shock absorption effect of the plastic track in winter and in low-temperature environments, and protect the knee joints of athletes.
Drawings
Fig. 1 is a schematic view of the overall structure of a peeling-resistant plastic track of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of the upper elastic layer and the lower elastic layer partially peeled off according to the present invention;
fig. 4 is a top view of the lower elastic layer of the present invention during the laying process.
The reference numbers are recorded as follows: 1. the asphalt base layer 2, the asphalt sealing bottom layer 3, the elastic layer 3-1, the lower elastic layer 3-2, the upper elastic layer 4, the surface layer 5, the foam particle layer 5-1 and the foam particles.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Referring to fig. 1-4, a plastic track with peeling resistance comprises an asphalt base layer 1, an asphalt sealing bottom layer 2, an elastic layer 3 and a surface layer 4; the asphalt base layer 1 is arranged at the bottom, and the asphalt bottom sealing layer 2, the elastic layer 3 and the surface layer 4 are sequentially arranged at the upper part of the asphalt base layer 1;
the elastic layer 3 comprises two layers, namely a lower elastic layer 3-1 and an upper elastic layer 3-2, wherein the lower elastic layer 3-1 is arranged on the upper part of the asphalt sealing bottom layer 2, and the upper elastic layer 3-2 is arranged on the upper part of the lower elastic layer 3-1; a foam particle layer 5 is arranged on the lower elastic layer 3-1, the foam particle layer 5 comprises a plurality of foam particles 5-1, part or all of the foam particles 5-1 are arranged between the lower elastic layer 3-1 and the upper elastic layer 3-2, the upper end and the lower end of the foam particle 5-1 between the lower elastic layer 3-1 and the upper elastic layer 3-2 are respectively embedded into the upper elastic layer 3-2 and the lower elastic layer 3-1, and the lower elastic layer 3-1 and the upper elastic layer 3-2 are contacted in a gap between the foam particles 5-1; the number density of the foam particles 5-1 on the lower elastic layer 3-1 and the upper end of which is not embedded into the upper elastic layer 3-2 is less than that of the foam particles 5-1 embedded into the upper elastic layer 3-2; according to actual production needs, more than two elastic layers 3 can be arranged, and a foam particle layer 5 is arranged between every two adjacent elastic layers 3;
as a preferable example, the upper and lower ends of all the foam particles 5-1 on the foam particle layer 5 of the present embodiment are embedded in the lower elastic layer 3-1 and the upper elastic layer 3-2, respectively;
the shape of the foam particles 5-1 is not limited, as long as the foam particles are granular foam particles, and in order to facilitate understanding of the present application, the foam particles 5-1 shown in the drawings of the present application are ellipsoidal, and the ellipsoidal foam particles 5-1 are only used as an example, and do not represent that the foam particles of the present application must have a specific shape; the material of the foam beads 5-1 of the present embodiment is preferably foam rubber beads or foam polyurethane beads.
Preferably, the cell structure of the foam particles 5-1 is an open cell structure and/or a closed cell structure. The foam particles 5-1 with the closed cell structure can provide better elasticity for the runway, and the foam particles 5-1 with the open cell structure can absorb auxiliary shock; the cells in the foam particles 5-1 have both an open and closed cell structure, and can absorb shock and provide some elasticity.
Preferably, the thickness of the asphalt base layer 1 is 80-150 mm;
preferably, the thickness of the asphalt base sealing layer 2 is 2-5 mm;
preferably, the thickness of the lower elastic layer 3-1 is 4-9 mm;
preferably, the upper elastic layer 3-2 has a thickness of 4-9 mm;
preferably, the foam particles 5-1 have a density of 0.5-1.0g/cm3。
Preferably, the particle size of the foam particles 5-1 is 3-5 mm.
Preferably, the thickness of the facing layer 4 is 2-3 mm.
The plastic track of this embodiment is laid as follows:
(1) paving an asphalt base layer 1 and an asphalt bottom sealing layer 2; the laying structure and process of the asphalt base layer 1 and the asphalt bottom sealing layer 2 can be realized by adopting the existing laying mode and structure of the asphalt base layer and the asphalt bottom sealing layer, and the description is omitted;
(2) laying an elastic layer 3; the elastic layer 3 is paved by full plastic single-component or double-component polyurethane liquid raw material, and the density of the polyurethane liquid raw material is 1.1-1.3g/cm3；
(2a) Laying a lower elastic layer 3-1: mixing, namely adding 5-1 parts of foam particles in the mixing process, and stirring; after stirring, pouring the raw materials on the asphalt sealing bottom layer 2, leveling and curing; the foam particle 5-1 of this example is exemplified by a foamed polyurethane particle; the adding amount of the foaming polyurethane particles is 0.5-3% of the mass of the polyurethane liquid raw material required by paving the lower elastic layer 3-1;
(2b) laying an upper elastic layer 3-2: proportioning, stirring, pouring on the lower elastic layer 3-1, leveling and curing;
(3) paving a surface layer; the surface layer is made of polyurethane self-textured fabric, and is laid on the upper elastic layer 3-2 to provide a textured structure for the surface of the runway, so that the antiskid effect is achieved.
In the laying process, the density of the foam particles 5-1 is lower than that of the polyurethane liquid raw material, so that after laying, in the process of solidifying the liquid raw material of the lower elastic layer 3-1, the foam particles 5-1 gradually float upwards in the lower elastic layer 3-1, finally, the lower parts of the foam particles 5-1 are embedded into the lower elastic layer 3-1, and the upper parts of the foam particles 5-1 are higher than the lower elastic layer 3-1; after the lower elastic layer 3-1 is solidified, the upper elastic layer 3-2 is laid, at the moment, the part of the foam particles 5-1, which is higher than the lower elastic layer 3-1, can be embedded into the upper elastic layer 3-2, so that the binding force between the two elastic layers is improved, the effect of preventing interlayer peeling is achieved for the plastic track, meanwhile, the cellular structure of the foam particles 5-1 in the foam particle layer 5 is of an open-cell structure and/or a closed-cell structure, the plastic track can have good elasticity and vibration absorption capacity in a low-temperature environment in winter, the vibration absorption capacity of the plastic track in the low-temperature environment in winter is improved, the effect of enhancing buffering is achieved, and the knee joints of athletes are protected.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A stripping-resistant plastic track comprises an asphalt base layer (1), an asphalt sealing bottom layer (2), an elastic layer (3) and a surface layer (4); the asphalt base layer (1) is arranged at the bottom, and the asphalt back cover layer (2), the elastic layer (3) and the surface layer (4) are sequentially arranged at the upper part of the asphalt base layer (1); the elastic layer (3) is characterized by comprising at least two layers, namely a lower elastic layer (3-1) and an upper elastic layer (3-2), wherein the upper elastic layer (3-2) is arranged at the upper part of the lower elastic layer (3-1); the foam particle layer (5) is arranged on the lower elastic layer (3-1), the foam particle layer (5) comprises a plurality of foam particles (5-1), part or all of the foam particles (5-1) are arranged between the lower elastic layer (3-1) and the upper elastic layer (3-2), the upper end and the lower end of the foam particle (5-1) between the lower elastic layer (3-1) and the upper elastic layer (3-2) are respectively embedded into the upper elastic layer (3-2) and the lower elastic layer (3-1), and the lower elastic layer (3-1) and the upper elastic layer (3-2) are contacted in gaps between the foam particles (5-1).
2. The peel-resistant plastic track as claimed in claim 1, characterized in that the number density of the foam particles (5-1) on the lower elastic layer (3-1) and not embedded in the upper elastic layer (3-2) at the upper end is less than the number density of the foam particles (5-1) embedded in the upper elastic layer (3-2) at the upper end.
3. The peel-resistant plastic track as claimed in claim 2, characterized in that the material of the lower elastic layer (3-1) is polyurethane liquid material.
4. The peel-resistant plastic track as claimed in claim 3, characterized in that the density of the foam particles (5-1) is 0.5-1.0g/cm 3; the density of the polyurethane liquid raw material is 1.1-1.3g/cm 3.
5. The peel-resistant plastic track as claimed in claim 4, wherein the foam particles (5-1) have a particle size of 3-5 mm.
6. The strip-resistant plastic track according to claim 4, characterized in that the thickness of the asphalt base layer (1) is 80-150 mm; the thickness of the asphalt bottom sealing layer (2) is 2-5 mm.
7. The strip-resistant plastic track according to claim 4, characterized in that the thickness of the lower elastic layer (3-1) is 4-9 mm.
8. The strip-resistant plastic track according to claim 4, characterized in that the thickness of the upper elastic layer (3-2) is 4-9 mm.
9. The strip-resistant plastic track according to claim 4, characterized in that the thickness of the surface layer (4) is 2-3 mm.
10. The peel-resistant plastic track as claimed in claim 1, characterized in that the cellular structure of the foam particles (5-1) is an open-cell structure and/or a closed-cell structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021306151.7U CN212834845U (en) | 2020-07-07 | 2020-07-07 | Plastic course of nai peeling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021306151.7U CN212834845U (en) | 2020-07-07 | 2020-07-07 | Plastic course of nai peeling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212834845U true CN212834845U (en) | 2021-03-30 |
Family
ID=75181596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021306151.7U Expired - Fee Related CN212834845U (en) | 2020-07-07 | 2020-07-07 | Plastic course of nai peeling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212834845U (en) |
-
2020
- 2020-07-07 CN CN202021306151.7U patent/CN212834845U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |