CN212052172U

CN212052172U - Particle elastic layer structure for PU track

Info

Publication number: CN212052172U
Application number: CN201922352558.7U
Authority: CN
Inventors: 林世峯
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-12-01
Anticipated expiration: 2029-12-24

Abstract

The utility model provides a use in granule elastic layer structure of PU runway, include: a fine mesh substrate with aggregate characteristics or a plastic plane substrate, wherein at least one surface of the fine mesh substrate is fixedly paved with a plurality of elastic particles (such as EPU polyurethane foaming particles) by taking an adhesive or an adhesive layer as a medium. When the PU runway is laid, a gravel gradation, coarse asphalt, fine asphalt, a PU elastic material, the particle elastic layer and a PU elastic surface layer are laid in sequence from bottom to top, and the improved particle elastic layer structure is adopted to facilitate the construction of the PU runway and save materials and construction cost.

Description

Particle elastic layer structure for PU track

Technical Field

The utility model relates to a use in the granule elastic layer structure of laying the PU runway that uses in the stadium.

Background

When a general PU track on a sports ground is constructed, most PU tracks on the sports ground are paved on the bottommost layer of the track by using broken stone grading as a substrate, a layer of coarse asphalt is paved on the track after the broken stone grading is compacted, a layer of fine asphalt is paved, a layer of PU elastic base material is paved after the fine asphalt is dried, an elastic layer is paved on the PU elastic base material, and a PU elastic surface layer is coated on the top after the elastic layer is paved, so that a seamless elastic and colorful elastic PU track structure is formed.

The elastic layer is light particles (similar to Styrofoam particles) of EPP, EPE and other foam particles, so that in practice, when the elastic layer is laid, because the track area of construction is very large and the field is spacious, no shielding object is arranged around the track to shield the wind, so that a constructor lays the EPP, EPE and other particles above the track, the particles can be blown off the laid track by blowing light wind to cause dancing all over the day, the track constructor is very troubled, the constructor needs to consume a large amount of manpower and tools to recycle the blown-off particles, and the labor cost for implementation is also increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the shortcoming and the puzzlement that present PU runway structure exists when laying the elastic layer.

The utility model provides a use in granule elastic layer structure of PU runway, include: a substrate, at least one side of which is coated with an adhesive or a glue layer as a medium; and a plurality of elastic particles (such as EPU polyurethane foaming particles) combined on at least one surface layer of the substrate.

Preferably, the substrate may be a glass fiber fine mesh fabric, so that the substrate has a better fixing effect when the adhesive or the adhesive layer is combined with the elastic particles.

Preferably, the substrate can be a planar substrate made of plastic material, which has excellent adhesion effect when an adhesive layer is used to combine the elastic particles.

Preferably, the elastic particles may be EPU polyurethane foam particles, so that the elastic particles have better elasticity and light weight.

Preferably, the surface layer of the elastic particle can be sprayed with an adhesive, so that the entire elastic particle layer has the aggregate characteristic and the supporting force of the elastic particle layer can be enhanced.

In another embodiment, another plurality of elastic particles can be bonded to the other surface of the fine mesh substrate, and an adhesive can be sprayed on the surface layer of the plurality of elastic particles.

The utility model discloses aforementioned granule elastic layer can be in the mill in advance will elastic particle lays then on fine mesh net substrate or plane substrate to convolute into transporting the job site again after tying, when will laying the granule elastic layer in PU elastic substrate top, as long as with this substrate that becomes to tie expand on PU elastic substrate, can make elastic particle lay on PU elastic substrate, and because elasticity granule series system fixes on the substrate, so even if the job site blows strong wind and also can not cause the elastic particle of light to fly to everywhere, the puzzlement in the past of runway constructor has been reduced, the human cost of carrying out the operation has also been reduced.

Drawings

FIG. 1 is a partial plan sectional view of an embodiment of the application of the granular elastic layer of the present invention to a PU track structure;

FIG. 2 is an exploded perspective view of an embodiment of the present invention showing the combination relationship between the substrate and the elastic particles of the fine mesh grid of the elastic layer;

FIG. 3 is a perspective view of an embodiment of the present invention showing a particle elastic layer after elastic particles are laid on a fine mesh substrate and then an adhesive is applied to the elastic particles;

FIG. 4 is a perspective view of an embodiment of the present invention showing a granular elastic layer having elastic granules disposed on opposite sides of a fine mesh substrate;

FIG. 5 is an exploded perspective view of an embodiment of the present invention showing the relationship between the planar substrate of the particle elastic layer and the elastic particles; and

fig. 6 is a perspective view showing an example of a state in which the granular elastic layer of the present invention is wound into a bundle.

Description of reference numerals: 1-crushed stone grading; 2-coarse pitch; 3-fine pitch; 4-PU elastic base material; 5-a particulate elastic layer; 51-fine mesh grid substrate; 510-an adhesive layer; 52-elastomeric particles; 6-PU elastic surface layer; 7-a spray gun; 71 an adhesive; 8 plane substrate.

Detailed Description

The following embodiments of the present invention will be described in detail with reference to the drawings and the accompanying reference symbols, so that those skilled in the art can implement the invention after reading the description.

As shown in fig. 1, when a PU track for a sports ground is laid, a stone composition 1 is first laid on a construction site as a base of the track, and the stone composition 1 is composed of a plurality of stones with appropriate sizes; then laying coarse asphalt 2 above the crushed stone gradation 1, wherein the coarse asphalt 2 is coarse asphalt generated in the final process of petroleum refining; then laying fine asphalt 3 on the coarse asphalt 2, wherein the fine asphalt 3 is finer asphalt relative to the coarse asphalt 2; then, a PU elastic material 4 is laid above the fine pitch 3; then, a particle elastic layer 5 of the utility model is laid above the PU elastic material 4, and the particle elastic layer 5 comprises a plurality of light foaming particles 52 for absorbing and buffering the downward acting force of the runway; finally, a PU elastic surface layer 6 is laid on the particle elastic layer 5 to form a complete PU runway.

Fig. 2 and 3 show the structure and manufacturing method of the granular elastic layer 5 of the present invention; the granular elastic layer 5 comprises a fine mesh substrate 51 with aggregate characteristics, the fine mesh substrate 51 is preferably made of glass fiber fine mesh cloth, an adhesive layer 510 can be coated on one surface of the fine mesh substrate 51, then a plurality of elastic granules 52 are adhered and fixed on the adhesive layer 510, an adhesive 71 is sprayed on the surface layer of the elastic granules 52 by a spray gun 7, so that the elastic granules 52 have better adhesion, or the adhesive layer 510 is not coated, the elastic granules 52 are directly laid on the fine mesh substrate 51, and then the adhesive 71 is sprayed on the surface layer of the elastic granules 52. Preferably, EPU (polyurethane) foam particles are used as the elastic particles 52.

As shown in fig. 3, in order to make the elastic particles 52 on the fine mesh substrate 51 have better firmness, the present invention can also lay the elastic particles 52 on the fine mesh substrate 51, spray the adhesive 71 on the surface layer of the elastic particles 52 from above by the spray gun 7, and combine each elastic particle 52 with the fine mesh substrate 51 after the adhesive 71 is dried, so as to be firmer.

In addition, since different tracks may have different elasticity requirements, the present invention can set the particle elastic layer 5 to have two layers of elastic particles 52 according to the track requiring better elasticity effect. As shown in fig. 4, the present invention can dispose the elastic particles 52 on one side of the fine mesh substrate 51 according to the above-mentioned manner, and then combine the elastic particles 52 on the opposite side in the same manner as described above, and similarly spray the adhesive 71 on the surface of the elastic particles 52, so that the elastic particles 52 are disposed on the opposite sides of the fine mesh substrate 51; as such, the granular elastic layer 5 having two layers of elastic particles 52 will have a greater thickness than a single layer of elastic particles 52, thereby providing a higher cushioning effect in absorbing elastic forces.

Aforementioned the utility model discloses a granule elastic layer 5 is all being done at the factory manufacture to combine the fine mesh net substrate 51 of elastic particle 52 to become to twine to bundle the form (as shown in fig. 6), the granule elastic layer 5 that will become the bundle again when will laying the runway transports the job site and carries out the work, the staff as long as to expand the granule elastic layer 5 of whole bundle in order to lay on the runway can, even if the job site blows up strong wind and also can not cause the elastic particle of light to fly to everywhere, runway constructor's puzzlement has been reduced, the human cost of carrying out the work has also been reduced.

As shown in fig. 5, in order to make the material of the granular layer 5 more selective, the present invention can also use a plastic non-mesh planar substrate 8 in the granular layer 5, that is, a glue layer 810 can be coated on the surface of the planar substrate 8, and then a plurality of elastic particles 52 can be adhered and fixed on the glue layer 810, or an adhesive 71 can be sprayed on the surface layer of the elastic particles 52 to firmly bond each elastic particle 52.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A granular elastic layer structure for use in a PU racetrack, comprising:

a substrate, at least one side of which is coated with an adhesive or an adhesive layer as a medium; and

a plurality of elastic particles, which are combined with the adhesive or the adhesive layer on at least one surface of the substrate.

2. A granular elastic layer structure for PU tracks according to claim 1, wherein said substrate is a fine-mesh grid substrate with aggregate characteristics, and at least one side of said fine-mesh grid substrate is coated with said adhesive or glue layer as medium.

3. A granular elastic layer structure for PU tracks according to claim 2, wherein said fine mesh substrate is glass fiber fine mesh cloth.

4. A granular elastic layer structure for PU tracks according to claim 2, wherein said elastic granules are EPU polyurethane foam granules.

5. A granular elastic layer structure for PU tracks according to claim 4, wherein an adhesive is sprayed on said elastic granules.

6. A granular elastic layer structure as claimed in claim 5, wherein said substrate is further provided with said adhesive layer on the opposite surface, and a plurality of other elastic granules are bonded to said adhesive layer, and said adhesive is sprayed on the surface of said plurality of other elastic granules.