CN215441265U

CN215441265U - Seamless prefabricated EPU runway

Info

Publication number: CN215441265U
Application number: CN202121553445.4U
Authority: CN
Inventors: 刘威; 廖常友
Original assignee: Guangzhou Xinyuan Sports Industry Co Ltd
Current assignee: Guangzhou Xinyuan Sports Industry Co Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-01-07
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a seamless prefabricated EPU runway, which comprises a runway body, wherein the runway body comprises a cast-in-place polyurethane layer, the bottom of the polyurethane layer is connected with a prefabricated polyurethane elastic cushion, the surface of the polyurethane layer is connected with an environment-friendly rubber anti-skid particle layer, and the bottom of the prefabricated polyurethane elastic cushion is connected with a glue bonding layer. The seamless prefabricated EPU runway has advanced performance and high technological content, conforms to the mechanical principle of human motion, is safe and reproducible, and is suitable for being used under various conditions. The runway structure is provided with a prefabricated polyurethane elastic cushion layer which has strong buffering and protecting effects on the running movement of a human body; the environment-friendly rubber anti-skid particle layer can improve the static friction strength of the surface of the runway, so that the use experience of the runway is improved; and a glue bonding layer is arranged, so that the performance of a finished product finished on site is more stable.

Description

Seamless prefabricated EPU runway

Technical Field

The utility model relates to the technical field of runway production, in particular to a seamless prefabricated EPU runway.

Background

The plastic track not only has the characteristics of good flatness, high compressive strength, proper hardness and elasticity and stable physical performance, is beneficial to the exertion of the speed and the technology of athletes, effectively improves the sports performance, reduces the falling injury rate, but also has certain ultraviolet resistance and aging resistance.

At present, the fully prefabricated rubber track: the abutted seams are easy to crack and bulge, the energy attenuation is fast, and the abutted seams are quickly embrittled and even cracked after being used outdoors for several years. In addition, the cost is high at one time, simple renovation measures are not needed, and the subsequent transformation and utilization benefits are not needed;

cast-in-place polyurethane track: the main defects are that the field thickness is not uniform, the physical mechanical property and the motion performance are unstable, and the actual field is difficult to meet the national standard requirements;

existing semi-prefabricated runways: the upper and lower structure materials are different (the bottom layer is mostly prefabricated by recycled rubber waste, and the surface layer is made of cast-in-place polyurethane), so that the field finished product has poor integrity, is easy to crack and bulge and has poor experience sense due to different upper and lower physical properties;

existing homogeneous semi-prefabricated runways: the upper structure and the lower structure are both made of polyurethane, but because the bottom layer prefabricated polyurethane elastic cushion is a single-component forming process, no chain extension cross-linking agent is added, the elasticity is redundant, the strength is deficient, and the durability is poor;

aiming at the problems, the seamless prefabricated EPU runway has better and more durable strength because the bottom EPU elastic cushion is a two-component foaming finished product, has the same physical properties from top to bottom (the same polyurethane), has more stable performance of a finished product finished on site, avoids the hidden danger of cracking and arching of a full prefabricated splice, provides stable physical and chemical properties and reaches the detection standard. Therefore, the seamless prefabricated EPU runway is improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a seamless prefabricated EPU runway.

The utility model discloses a seamless prefabricated EPU runway, which comprises a runway body and is characterized in that the runway body comprises a cast-in-place polyurethane layer, the bottom of the cast-in-place polyurethane layer is connected with a prefabricated polyurethane elastic cushion, the surface of the cast-in-place polyurethane layer is connected with a PU elastic surface layer, the surface of the PU elastic surface layer is fixedly connected with a granular elastic layer, and the bottom of the prefabricated polyurethane elastic cushion is connected with a glue bonding layer.

As a preferred technical scheme of the utility model, the top of the particle elastic layer is fixedly connected with a PU elastic base material, and the top of the PU elastic base material is fixedly connected with fine asphalt.

As a preferable technical scheme of the utility model, the top of the fine asphalt is fixedly connected with coarse asphalt, and the top of the coarse asphalt is fixedly connected with an environment-friendly rubber antiskid granular layer.

As a preferable technical scheme of the utility model, the prefabricated polyurethane elastic cushion is provided with a plurality of independent closed-cell structures, and the air in the closed cells is compressed and released along with external force.

As a preferred technical scheme of the utility model, the bottom of the prefabricated polyurethane elastic cushion is connected with a glue bonding layer, and the glue is MS polymer adhesive

As a preferred technical scheme of the utility model, the surface of the cast-in-place polyurethane layer is connected with an environment-friendly rubber anti-skid particle layer, and the coating is formed by mixing and spraying high-gel-content EPDM particles and an adhesive.

The utility model has the beneficial effects that: the seamless prefabricated EPU runway is provided with a cast-in-place polyurethane layer, so that the strength of the runway can be better and more durable, the runway is homogeneous from top to bottom (polyurethane is used together), the physical properties of the runway are unified from top to bottom, the performance of finished products finished on site is more stable, the hidden danger of cracking and arching of full prefabricated seams is avoided, stable physicochemical properties are provided, the detection reaches the standard, a PU elastic base material is arranged, light elastic particles cannot fly around, the abrasion of the particles is reduced, the cost is reduced, an environment-friendly rubber anti-slip particle layer is arranged, the friction force can be increased, a prefabricated polyurethane elastic cushion is arranged, the runway can have a buffering effect, the service life of the runway can be prolonged when the runway moves, the material is cured into glue which can absorb and compensate dynamic loads, the stress is uniformly transmitted, the material is prevented from being too early fatigued, the bonding among multiple base materials can be realized, and a glue bonding layer is arranged, the adhesive force between the prefabricated polyurethane elastic cushion and the ground can be increased, and the runway is prevented from being damaged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a perspective view of a seamless prefabricated EPU track according to the present invention;

FIG. 2 is an enlarged view of an environment-friendly rubber anti-skid particle layer of the seamless prefabricated EPU runway.

In the figure: 1. a runway body; 2. an environment-friendly rubber anti-skid particle layer; 3. a cast-in-place polyurethane layer; 4. prefabricating a polyurethane elastic cushion; 5. gluing and bonding the layers; 6. a PU elastic surface layer; 7. A particulate elastic layer; 8. a PU elastic base material; 9. fine pitch; 10. coarse pitch.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-2, the seamless prefabricated EPU runway comprises a runway body 1, and is characterized in that the runway body 1 comprises a cast-in-place polyurethane layer 3, the bottom of the cast-in-place polyurethane layer 3 is connected with a prefabricated polyurethane elastic cushion 4, the surface of the cast-in-place polyurethane layer 3 is connected with a PU elastic surface layer 6, the surface of the PU elastic surface layer 6 is fixedly connected with a particle elastic layer 7, the bottom of the prefabricated polyurethane elastic cushion 4 is connected with a glue bonding layer 5, the cast-in-place polyurethane layer 3 is arranged, so that the strength of the runway is better and more durable, in addition, the upper and lower physical properties are uniform (the same is polyurethane), the performance of a finished product on site is more stable, the hidden danger of cracking and arching of a full prefabricated spliced seam is avoided, the stable physical and chemical properties are provided, and the detection reaches the standard.

Wherein, the top fixedly connected with PU elastic substrate 8 of granule elastic layer 7, the top fixedly connected with fine material pitch 9 of PU elastic substrate 8 sets up PU elastic substrate 8, can not cause the elastic particle of light to fly to everywhere, has reduced the wearing and tearing of granule, also the cost is reduced.

Wherein, the top fixedly connected with coarse fodder pitch 10 of fine fodder pitch 9, the top fixedly connected with environmental protection rubber skid resistant particle layer 2 of coarse fodder pitch 10 sets up environmental protection rubber skid resistant particle layer 2, can increase frictional force.

Wherein, prefabricated polyurethane elastic cushion 4 is provided with a plurality of independent obturator structures, along with external force to the compression release of obturator interior air, possesses the high resilience function of high buffering, sets up prefabricated polyurethane elastic cushion 4, can make the runway have the effect of buffering, when moving on the runway, can increase the life of runway, and this material solidification becomes to glue can absorb and compensate dynamic load, and even transmission atress prevents that the material from tired too early, can realize the bonding between the multiple substrate.

Wherein, the bottom of prefabricated polyurethane cushion 4 is connected with glue tie coat 5, this glue is MS polymer adhesive, does not contain silicone component and solvent, does not contain polyurethane group, tasteless environmental protection, and this material solidifies to become the glue and can absorb and compensate dynamic load, and even transmission atress prevents the material too early fatigue, can realize bonding between multiple substrate, sets up glue tie coat 5, can increase prefabricated polyurethane cushion 4 and the viscous force on ground, prevents that the runway from suffering destruction.

Wherein, the surface of cast-in-place type polyurethane layer 3 is connected with environmental protection rubber antiskid granular layer 2, and this coating is that high gel content EPDM granule and adhesive mix spraying form, possesses excellent anti-skidding function and environmental protection effect.

The working principle is as follows: when the runway is used, the cast-in-place polyurethane layer 3 is arranged, the strength of the runway can be better and more durable, the runway is homogeneous from top to bottom (polyurethane is used together), the physical properties of the runway are unified from top to bottom, the performance of finished products finished on site is more stable, the hidden danger of cracking and arching of full-prefabricated abutted seams is avoided, the stable physical and chemical properties are provided, the detection reaches the standard, the PU elastic base material 8 is arranged, light elastic particles cannot fly around, the abrasion of the particles is reduced, the cost is also reduced, the environment-friendly rubber anti-slip particle layer 2 is arranged, the friction force can be increased, the prefabricated polyurethane elastic cushion 4 is arranged, the runway has the buffering function, the service life of the runway can be prolonged when the runway moves on the runway, the material is cured into glue and can absorb and compensate dynamic loads, the stress is uniformly transmitted, the material is prevented from being too early fatigued, the bonding among various base materials can be realized, the glue bonding layer 5 is arranged, the adhesive force between the prefabricated polyurethane elastic pad 4 and the ground can be increased, and the runway is prevented from being damaged.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a seamless prefabricated type EPU runway, includes runway body (1), its characterized in that, runway body (1) is including cast-in-place type polyurethane layer (3), prefabricated polyurethane elastic pad (4) is connected to the bottom on cast-in-place type polyurethane layer (3), the surface connection on cast-in-place type polyurethane layer (3) has PU elasticity surface course (6), the fixed surface of PU elasticity surface course (6) is connected with granule elastic layer (7), the bottom of prefabricated polyurethane elastic pad (4) is connected with glue tie coat (5).

2. A seamless prefabricated type EPU track according to claim 1, wherein said granular elastic layer (7) is fixedly connected with PU elastic base material (8) on top, and said PU elastic base material (8) is fixedly connected with fine pitch (9) on top.

3. The seamless prefabricated EPU runway according to claim 2, characterized in that the top of the fine asphalt (9) is fixedly connected with coarse asphalt (10), and the top of the coarse asphalt (10) is fixedly connected with an environment-friendly rubber antiskid granular layer (2).

4. A seamless prefabricated EPU track according to claim 1, wherein said prefabricated polyurethane elastic pad (4) is provided with a plurality of independent closed cell structures.

5. A seamless prefabricated EPU runway according to claim 1, characterized in that the bottom of the prefabricated polyurethane elastic pad (4) is connected with a glue adhesion layer (5), the glue is MS polymer adhesive.

6. The seamless prefabricated EPU runway according to claim 1, characterized in that the surface of the cast-in-place polyurethane layer (3) is connected with an environment-friendly rubber antiskid granular layer (2), and the coating is formed by mixing and spraying high-gel-content EPDM granules and an adhesive.