A highly elastic professional court structure

Abstract

The present invention discloses a highly elastic professional court structure, comprising a waterproof base layer, a first elastic layer, and a second elastic layer. The lower end surface of the first elastic layer is connected to the waterproof base layer, and the first and second elastic layers are connected via an adhesive layer. Foam balls are embedded within the first elastic layer, and a layer of red rubber particles is provided on the upper surface of the second elastic layer. The density of the second elastic layer is greater than that of the first elastic layer. The present invention provides an upper buffering bump on the lower surface of the second elastic layer and a lower buffering bump on the upper surface of the first elastic layer. The top corners of the lower buffering bumps correspond to inverted "V"-shaped grooves, which can enhance the connection strength between the first and second elastic layers. This structure, combined with the foam balls, significantly improves the court's compressive resistance and enhances its impact energy absorption.

Description

Technical Field

[0001] The present invention relates to the technical field of court structures, and in particular to a high-elasticity professional court structure. Background Art

[0002] As the main place for people to exercise, courts are generally set up in schools, professional training venues, or other institutions for the exclusive use of staff. Early courts were simply paved with concrete. Due to its high friction, it is easy to cause injuries to users. Therefore, they are now basically replaced by PU courts. PU courts are professional structures designed for healthy exercise. They have the performance of being hard on the top and elastic on the bottom. However, the existing courts still have insufficient rebound force, which causes the surface of the court to deform. Not only is it prone to water accumulation, but there are also certain safety risks when athletes use it. In addition, since the court is prone to cracks after deformation, it affects the normal use of the court and shortens its service life. Therefore, we propose a highly elastic professional court structure to solve the above-mentioned problems. Summary of the Invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a high-elasticity professional court structure to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] The present invention provides a high-elasticity professional court structure, which includes a waterproof base layer, a first elastic layer and a second elastic layer;

[0006] The lower end surface of the first elastic layer is connected to the waterproof base layer, the first elastic layer and the second elastic layer are connected by an adhesive layer, the interior of the first elastic layer is embedded with foam balls, the upper surface of the second elastic layer is provided with a red glue particle layer, and the density of the second elastic layer is greater than that of the first elastic layer.

[0007] Preferably, the first elastic layer and the second elastic layer are both made of modified polyurethane material;

[0008] The specific preparation method is as follows:

[0009] Step 1: 10-20 parts of isophorone diisocyanate, 30-40 parts of a polyether polyol with a molecular weight of 1000, 3-6 parts of dimethyl cystine and 1-5 parts of zinc isooctanoate are reacted at 75-85° C. for 1-2 hours to prepolymerize to form a polyurethane prepolymer;

[0010] Step 2: Mix 30-40 parts of polyurethane prepolymer, 5-10 parts of modifying additives, 10-20 parts of EPDM rubber particles, 1-4 parts of tributyl citrate, and 1-3 parts of modified coupling agent at 65-75° C. and stir for 45-55 minutes at a mixing speed of 500-1000 r / min. After mixing, a modified polyurethane material is obtained.

[0011] In the preparation of modified polyurethane materials, polyurethane prepolymer is mixed with modification additives, PDM rubber particles, tributyl citrate, modified coupling agent and other raw materials;

[0012] The modified additive uses graphene modified with chitosan, itaconic acid, and sodium dodecyl sulfate, the pre-modification effect is enhanced, and the activity of the pre-modified product is improved. The modified product is modified by reacting with raw materials such as hexadecyltrimethoxysilane, nanosilica, and tetraethyl silicate. The modified product, through the flaky structure of graphene itself and the toughness effect of graphene, is modified and optimized and applied to polyurethane to enhance the product's weather resistance, elasticity and other properties. In addition, the modified coupling agent is modified with coupling agent KH560 through lanthanum chloride solution and octadecyltrichlorosilane, and the compatibility between the raw materials is enhanced, thereby further improving the elasticity and weather resistance of the polyurethane material.

[0013] Preferably, the preparation method of the modified additive is:

[0014] 10-20 parts of graphene are added to 25-35 parts of chitosan aqueous solution and stirred thoroughly, then 2-6 parts of itaconic acid and 1-5 parts of sodium lauryl sulfate are added, and the mixture is stirred at 75-85° C. for 30-40 minutes at a stirring speed of 300-400 r / min. After the stirring is completed, pre-modified graphene is obtained;

[0015] Add 5-10 parts of pre-modified graphene to 10-20 parts of ethanol, then add 1-5 parts of hexadecyltrimethoxysilane, 3-7 parts of nano-silica, 2-6 parts of isopropylbenzene hydroperoxide, and 1-3 parts of tetraethyl silicate, stir at 75-85°C for 20-30 minutes at a stirring speed of 500-900 r / min, wash with water, and dry to obtain a modified additive.

[0016] Preferably, the mass fraction of the chitosan aqueous solution is 5-9%.

[0017] Preferably, the modification method of the modified coupling agent is:

[0018] The coupling agent KH560 and ethanol are mixed in a weight ratio of 1:5, and then 10-20% of the total amount of the coupling agent KH560, a 5% by mass fraction lanthanum chloride solution and 1-5% by mass fraction octadecyltrichlorosilane are added, and the mixture is stirred and mixed thoroughly to obtain a modified coupling agent.

[0019] Preferably, the lower surface of the second elastic layer is provided with a plurality of upper buffer bumps; the surface of each upper buffer bump is arranged in an arc shape; two adjacent upper buffer bumps are connected without a gap; an inverted "V"-shaped groove is formed between two adjacent upper buffer bumps.

[0020] Preferably, a plurality of lower buffer bumps are provided on the upper surface of the first elastic layer, and each of the lower buffer bumps is arranged in a triangular structure.

[0021] Preferably, two adjacent lower buffer protrusions are arranged at intervals; and the top corner of each lower buffer protrusion is arranged corresponding to the inverted "V"-shaped groove.

[0022] Preferably, the foam ball is an ellipsoidal foam structure; the foam ball is a spherical foam structure, and the size of the foam ball is 2-8 mm.

[0023] Preferably, the foam ball comprises ellipsoidal foam and spherical foam mixed in any proportion.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a red rubber particle layer on the upper surface of the second elastic layer, thereby increasing the friction coefficient of the court surface, preventing users from slipping due to the smooth surface, and improving safety performance.

[0026] The density of the second elastic layer is greater than that of the first elastic layer. The second elastic layer is placed on the upper layer and is in contact with the user. Therefore, its density is higher. While ensuring elasticity, it also provides a certain degree of support and friction resistance, thereby extending the service life of the court. The first elastic layer is used as the lower layer, and foam balls are embedded in the interior of the first elastic layer, so that the lower layer has a certain degree of support capacity and high rebound performance. It can absorb impact energy, improve the pressure resistance of the court, and extend its service life.

[0027] An upper buffering protrusion is provided on the lower surface of the second elastic layer, and a lower buffering protrusion is provided on the upper surface of the first elastic layer. The top corner of the lower buffering protrusion corresponds to the inverted "V"-shaped groove, which can improve the connection strength between the first elastic layer and the second elastic layer. This structure, combined with the foam ball, greatly improves the pressure resistance of the court and enhances the impact energy absorption effect of the court. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] In the figure: 1- waterproof base layer; 2- first elastic layer; 3- second elastic layer; 4- red glue particle layer; 5- adhesive layer; 6- foam ball; 7- upper buffer bump; 8- lower buffer bump. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] A highly elastic professional court structure according to this embodiment includes a waterproof base layer, a first elastic layer, and a second elastic layer;

[0032] The lower end surface of the first elastic layer is connected to the waterproof base layer, the first elastic layer and the second elastic layer are connected by an adhesive layer, the interior of the first elastic layer is embedded with foam balls, the upper surface of the second elastic layer is provided with a red glue particle layer, and the density of the second elastic layer is greater than that of the first elastic layer.

[0033] The first elastic layer and the second elastic layer of this embodiment are both made of modified polyurethane material;

[0034] The specific preparation method is as follows:

[0035] Step 1: 10-20 parts of isophorone diisocyanate, 30-40 parts of a polyether polyol with a molecular weight of 1000, 3-6 parts of dimethyl cystine and 1-5 parts of zinc isooctanoate are reacted at 75-85° C. for 1-2 hours to prepolymerize to form a polyurethane prepolymer;

[0036] Step 2: Mix 30-40 parts of polyurethane prepolymer, 5-10 parts of modifying additives, 10-20 parts of EPDM rubber particles, 1-4 parts of tributyl citrate, and 1-3 parts of modified coupling agent at 65-75° C. and stir for 45-55 minutes at a mixing speed of 500-1000 r / min. After mixing, a modified polyurethane material is obtained.

[0037] The preparation method of the modified additive of this embodiment is:

[0038] 10-20 parts of graphene are added to 25-35 parts of chitosan aqueous solution and stirred thoroughly, then 2-6 parts of itaconic acid and 1-5 parts of sodium lauryl sulfate are added, and the mixture is stirred at 75-85° C. for 30-40 minutes at a stirring speed of 300-400 r / min. After the stirring is completed, pre-modified graphene is obtained;

[0039] Add 5-10 parts of pre-modified graphene to 10-20 parts of ethanol, then add 1-5 parts of hexadecyltrimethoxysilane, 3-7 parts of nano-silica, 2-6 parts of isopropylbenzene hydroperoxide, and 1-3 parts of tetraethyl silicate, stir at 75-85°C for 20-30 minutes at a stirring speed of 500-900 r / min, wash with water, and dry to obtain a modified additive.

[0040] The mass fraction of the chitosan aqueous solution in this embodiment is 5-9%.

[0041] The modification method of the modified coupling agent of this embodiment is:

[0042] The coupling agent KH560 and ethanol are mixed in a weight ratio of 1:5, and then 10-20% of the total amount of the coupling agent KH560, a 5% by mass fraction lanthanum chloride solution and 1-5% by mass fraction octadecyltrichlorosilane are added, and the mixture is stirred and mixed thoroughly to obtain a modified coupling agent.

[0043] The lower surface of the second elastic layer of this embodiment is provided with a plurality of upper buffer bumps; the surface of each upper buffer bump is arranged in an arc shape; two adjacent upper buffer bumps are connected without a gap; an inverted "V"-shaped groove is formed between two adjacent upper buffer bumps.

[0044] In this embodiment, a plurality of lower buffer bumps are provided on the upper surface of the first elastic layer, and each of the lower buffer bumps is provided in a triangular structure.

[0045] In this embodiment, two adjacent lower buffer protrusions are arranged at intervals; the top corner of each lower buffer protrusion is arranged corresponding to the inverted "V"-shaped groove.

[0046] The foam ball of this embodiment has an ellipsoidal foam structure; the foam ball has a spherical foam structure, and the size of the foam ball is 2-8 mm.

[0047] The foam balls of this embodiment include ellipsoidal foam and spherical foam mixed in any proportion.

[0048] Example 1.

[0049] like Figure 1As shown, the present invention provides a professional court structure, including a waterproof base layer 1, a first elastic layer 2 and a second elastic layer 3, wherein the lower end surface of the first elastic layer 3 is connected to the waterproof base layer 1, and the first elastic layer 2 and the second elastic layer 3 are connected by an adhesive layer 5, and foam balls 6 are embedded in the interior of the first elastic layer 2, and a red rubber particle layer 4 is provided on the upper surface of the second elastic layer 3, and the density of the second elastic layer 3 is greater than that of the first elastic layer 2; firstly, by providing the red rubber particle layer 4 on the upper surface of the second elastic layer 3, the present invention can increase the friction coefficient of the court surface, avoid users slipping due to the smooth surface, and improve the use Secondly, the density of the second elastic layer 3 is greater than that of the first elastic layer 2. The second elastic layer 3 is placed on the upper layer, which is the part in contact with the user. Therefore, its density is relatively high. While ensuring elasticity, it can also have a certain support strength and friction resistance coefficient, thereby extending the service life of the court. The first elastic layer 2 is used as the lower layer, and the foam balls 6 are embedded in the interior of the first elastic layer 2, so that the lower layer has a certain support capacity and high rebound performance, which can absorb impact energy, improve the pressure resistance of the court, and extend the service life. The performance of hardness on the top and rebound on the bottom is a professional structure designed for healthy sports.

[0050] In a specific example of the present invention, a plurality of upper buffer protrusions 7 are provided on the lower surface of the second elastic layer 3; the surface of each upper buffer protrusion 7 is arc-shaped; two adjacent upper buffer protrusions 7 are connected without a gap; an inverted "V"-shaped groove is formed between the two adjacent upper buffer protrusions 7, and a plurality of lower buffer protrusions 8 are provided on the upper surface of the first elastic layer 2, each of which is a triangular structure; two adjacent lower buffer protrusions 8 are spaced apart; the top corner of each lower buffer protrusion 8 corresponds to the inverted "V"-shaped groove; upper buffer protrusions 7 are provided on the lower surface of the second elastic layer 3, and lower buffer protrusions 8 are provided on the upper surface of the first elastic layer 2, and the top corner of the lower buffer protrusion 8 corresponds to the inverted "V"-shaped groove, which can improve the connection strength between the first elastic layer 2 and the second elastic layer 3, and this structure, combined with the foam ball 6, greatly improves the pressure resistance of the court and enhances the impact energy absorption effect of the court.

[0051] In some examples of the present invention, the first elastic layer 2 and the second elastic layer 3 are both made of polyurethane material, which can ensure that the court has a high rebound ability and improve the court's anti-seismic and anti-compression performance.

[0052] In other examples of the present invention, the foam ball 6 is an ellipsoidal foam structure.

[0053] In other examples of the present invention, the foam ball 6 is a spherical foam structure, and the size of the foam ball 6 is 5 mm.

[0054] In other examples of the present invention, the foam ball 6 includes ellipsoidal foam and spherical foam mixed in any proportion.

[0055] The foam balls 6 are filled into the first elastic layer 3 to increase the resilience of the first elastic layer 3 and enhance the impact energy absorption effect. The shape and size of the foam balls 6 can be selected according to needs, which is conducive to achieving different rebound standards in different occasions.

[0056] Example 2.

[0057] On the basis of Example 1, the first elastic layer and the second elastic layer of this embodiment are both made of modified polyurethane material;

[0058] The specific preparation method is as follows:

[0059] Step 1: 10 parts of isophorone diisocyanate, 30 parts of polyether polyol with a molecular weight of 1000, 3 parts of dimethyl cystine and 1 part of zinc isooctanoate are reacted at 75° C. for 1 hour to prepolymerize to form a polyurethane prepolymer;

[0060] Step 2: Mix 30 parts of polyurethane prepolymer, 5 parts of modified additives, 10 parts of EPDM rubber particles, 1 part of tributyl citrate, and 1 part of modified coupling agent at 65° C. and stir for 45 minutes at a mixing speed of 500 r / min. After mixing, a modified polyurethane material is obtained.

[0061] The preparation method of the modified additive of this embodiment is:

[0062] 10 parts of graphene were added to 25 parts of chitosan aqueous solution and stirred thoroughly, and then 2 parts of itaconic acid and 1 part of sodium lauryl sulfate were added, and stirred at 75°C for 30 minutes at a stirring speed of 300 r / min. After stirring was completed, pre-modified graphene was obtained;

[0063] 5 parts of pre-modified graphene were added to 10 parts of ethanol, and then 1 part of hexadecyltrimethoxysilane, 3 parts of nano-silica, 2 parts of isopropylbenzene hydroperoxide, and 1 part of tetraethyl silicate were added. The mixture was stirred at 75° C. for 20 minutes at a stirring speed of 500 r / min. After the stirring was completed, the mixture was washed with water and dried to obtain a modified additive.

[0064] The mass fraction of the chitosan aqueous solution in this embodiment is 5%.

[0065] The modification method of the modified coupling agent of this embodiment is:

[0066] The coupling agent KH560 and ethanol were mixed in a weight ratio of 1:5, and then 10% of the total amount of the coupling agent KH560, a 5% by mass fraction of lanthanum chloride solution and 1% of octadecyltrichlorosilane were added, and the mixture was stirred and mixed thoroughly to obtain a modified coupling agent.

[0067] Example 3.

[0068] On the basis of Example 1, the first elastic layer and the second elastic layer of this embodiment are both made of modified polyurethane material;

[0069] The specific preparation method is as follows:

[0070] Step 1: 20 parts of isophorone diisocyanate, 40 parts of polyether polyol with a molecular weight of 1000, 6 parts of dimethyl cystine and 5 parts of zinc isooctanoate are reacted at 85° C. for 2 hours to prepolymerize to form a polyurethane prepolymer;

[0071] Step 2: 40 parts of polyurethane prepolymer, 10 parts of modified additives, 20 parts of EPDM rubber particles, 4 parts of tributyl citrate, and 3 parts of modified coupling agent were mixed and stirred at 75° C. for 55 minutes at a mixing speed of 1000 r / min. After mixing, a modified polyurethane material was obtained.

[0072] The preparation method of the modified additive of this embodiment is:

[0073] 20 parts of graphene were added to 35 parts of chitosan aqueous solution and stirred thoroughly, and then 6 parts of itaconic acid and 5 parts of sodium lauryl sulfate were added, and stirred at 85°C for 40 minutes at a stirring speed of 400 r / min. After stirring was completed, pre-modified graphene was obtained;

[0074] 10 parts of pre-modified graphene were added to 20 parts of ethanol, and then 5 parts of hexadecyltrimethoxysilane, 7 parts of nano-silica, 6 parts of isopropylbenzene hydroperoxide, and 3 parts of tetraethyl silicate were added. The mixture was stirred at 85° C. for 30 minutes at a stirring speed of 900 r / min. After the stirring was completed, the mixture was washed with water and dried to obtain a modified additive.

[0075] The mass fraction of the chitosan aqueous solution in this embodiment is 9%.

[0076] The modification method of the modified coupling agent of this embodiment is:

[0077] The coupling agent KH560 and ethanol were mixed in a weight ratio of 1:5, and then 20% of the total amount of the coupling agent KH560, a 5% by mass fraction of lanthanum chloride solution and 5% by mass fraction of octadecyltrichlorosilane were added, and the mixture was stirred and mixed thoroughly to obtain a modified coupling agent.

[0078] Example 4.

[0079] On the basis of Example 1, the first elastic layer and the second elastic layer of this embodiment are both made of modified polyurethane material;

[0080] The specific preparation method is as follows:

[0081] Step 1: 15 parts of isophorone diisocyanate, 35 parts of a polyether polyol with a molecular weight of 1000, 4.5 parts of dimethyl cystine and 3 parts of zinc isooctanoate are reacted at 80° C. for 1.5 hours to prepolymerize a polyurethane prepolymer;

[0082] Step 2: 35 parts of polyurethane prepolymer, 7.5 parts of modifying additives, 15 parts of EPDM rubber particles, 2.5 parts of tributyl citrate, and 2 parts of modified coupling agent were mixed and stirred at 70°C for 50 minutes at a mixing speed of 750 r / min. After mixing, a modified polyurethane material was obtained.

[0083] The preparation method of the modified additive of this embodiment is:

[0084] 15 parts of graphene were added to 30 parts of chitosan aqueous solution and stirred thoroughly, and then 4 parts of itaconic acid and 3 parts of sodium lauryl sulfate were added, and stirred at 80°C for 35 minutes at a stirring speed of 350 r / min. After stirring was completed, pre-modified graphene was obtained;

[0085] 7.5 parts of pre-modified graphene were added to 15 parts of ethanol, and then 3 parts of hexadecyltrimethoxysilane, 5 parts of nano-silica, 4 parts of isopropylbenzene hydroperoxide, and 2 parts of tetraethyl silicate were added. The mixture was stirred at 80° C. for 25 minutes at a stirring speed of 700 r / min. After the stirring was completed, the mixture was washed with water and dried to obtain a modified additive.

[0086] The mass fraction of the chitosan aqueous solution in this embodiment is 7%.

[0087] The modification method of the modified coupling agent of this embodiment is:

[0088] The coupling agent KH560 and ethanol were mixed in a weight ratio of 1:5, and then 15% of the total amount of the coupling agent KH560, a 5% by mass fraction of lanthanum chloride solution and 3% of octadecyltrichlorosilane were added, and the mixture was stirred and mixed thoroughly to obtain a modified coupling agent.

[0089] The material properties of the elastic layers of Examples 2-4 were tested as follows:

[0090]

[0091] The elastic polyurethane material optimized by the products of Examples 2-4 is combined with the design of the court structure of the present invention: the court structure of the present invention has excellent elasticity and excellent aging resistance; and has a good application effect compared to the court structures currently on the market.

[0092] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0093] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A highly elastic professional court structure, characterized in that: The court structure includes a waterproof base layer, a first elastic layer and a second elastic layer; The lower end surface of the first elastic layer is connected to the waterproof base layer. The first elastic layer and the second elastic layer are connected by an adhesive layer. Foam balls are embedded in the interior of the first elastic layer. The upper surface of the second elastic layer is provided with a layer of red glue particles. The density of the second elastic layer is greater than that of the first elastic layer. The first elastic layer and the second elastic layer are both made of modified polyurethane material. The specific preparation method is as follows: Step 1: 10-20 parts of isophorone diisocyanate, 30-40 parts of a polyether polyol with a molecular weight of 1000, 3-6 parts of dimethyl cystine and 1-5 parts of zinc isooctanoate are reacted at 75-85° C. for 1-2 hours to prepolymerize to form a polyurethane prepolymer; Step 2: Mix and stir 30-40 parts of polyurethane prepolymer, 5-10 parts of modifying additive, 10-20 parts of EPDM rubber particles, 1-4 parts of tributyl citrate, and 1-3 parts of modified coupling agent at 65-75° C. for 45-55 minutes at a mixing speed of 500-1000 r / min to obtain a modified polyurethane material. The preparation method of the modifying additive is as follows: 10-20 parts of graphene are added to 25-35 parts of chitosan aqueous solution and stirred thoroughly, then 2-6 parts of itaconic acid and 1-5 parts of sodium lauryl sulfate are added, and the mixture is stirred at 75-85° C. for 30-40 minutes at a stirring speed of 300-400 r / min. After the stirring is completed, pre-modified graphene is obtained; Add 5-10 parts of pre-modified graphene to 10-20 parts of ethanol, then add 1-5 parts of hexadecyltrimethoxysilane, 3-7 parts of nano-silica, 2-6 parts of isopropylbenzene hydroperoxide, and 1-3 parts of tetraethyl silicate, stir at 75-85°C for 20-30 minutes at a stirring speed of 500-900 r / min, wash with water, and dry to obtain a modified additive.

2. A highly elastic professional court structure according to claim 1, characterized in that: The mass fraction of the chitosan aqueous solution is 5-9%.

3. The high-elasticity professional court structure according to claim 1, characterized in that: The modification method of the modified coupling agent is: The coupling agent KH560 and ethanol are mixed in a weight ratio of 1:5, and then 10-20% of the total amount of the coupling agent KH560, a 5% by mass fraction lanthanum chloride solution and 1-5% by mass fraction octadecyltrichlorosilane are added, and the mixture is stirred and mixed thoroughly to obtain a modified coupling agent.

4. The high-elasticity professional court structure according to claim 1, characterized in that: The lower surface of the second elastic layer is provided with a plurality of upper buffer bumps; the surface of each upper buffer bump is arranged in an arc shape; two adjacent upper buffer bumps are connected without a gap; an inverted "V"-shaped groove is formed between two adjacent upper buffer bumps.

5. The high-elasticity professional court structure according to claim 1, characterized in that: A plurality of lower buffer bumps are provided on the upper surface of the first elastic layer, and each of the lower buffer bumps is arranged in a triangular structure.

6. A highly elastic professional court structure according to claim 5, characterized in that: Two adjacent lower buffer protrusions are arranged at intervals; and the top corner of each lower buffer protrusion corresponds to the inverted "V"-shaped groove.

7. A highly elastic professional court structure according to claim 6, characterized in that: The foam ball has an ellipsoidal foam structure; the foam ball has a spherical foam structure, and the size of the foam ball is 2-8 mm.

8. The high-elasticity professional court structure according to claim 7, characterized in that: The foam ball comprises ellipsoidal foam and spherical foam mixed in any proportion.

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