Internally-pressurized cavity structure of sports gear, and manufacturing method therefor

Abstract

Disclosed in the present invention are an internally-pressurized cavity structure of sports gear and a manufacturing method therefor. The manufacturing method comprises the following steps: acquiring mechanical data of an internally-pressurized cavity structure of sports gear; on the basis of the mechanical data, generating cavity distribution data, cavity structure data and cavity air pressure data; on the basis of the cavity distribution data, the cavity structure data and the cavity air pressure data, determining a cavity structure model; and importing the cavity structure model into a 3D printer, and performing printing to obtain the cavity structure of sports gear. The present invention uses the mechanical data to obtain a special cavity structure required by each area and an internal pressure value required by each cavity structure, so as to determine an actual printing model; and then performs printing to obtain the internally-pressurized cavity structures of sports gear capable of respectively providing structural designs for different functional areas, thereby satisfying customization requirements of users.

Description

A sports equipment cavity structure with internal pressure and its preparation method Technical Field

[0001] The present invention relates to the technical field of design and manufacturing of sports equipment, and in particular to a sports equipment cavity structure with internal pressure and a preparation method thereof. Background Art

[0002] Existing sports equipment such as shoes and knee pads generally use foam materials as cushioning materials. This material is light, soft, and can effectively absorb energy, but its rebound effect is average and not durable. It will gradually fatigue and fail after long-term use, and the comfort and sports effect will seriously decline, which cannot meet the requirements of sports equipment for rapid rebound. In order to improve the rebound performance, the existing technology generally uses airbag-type cavity structures to improve the rebound performance of sports equipment, such as airbag insoles and airbag backpack straps. However, the current molding method mainly relies on mold stamping to form the required cavity structure. The airbag formed by the cavity structure prepared by this method has a single shape and is limited by the original mold. It cannot achieve personalized customization and cannot provide corresponding structural designs for different functional areas of sports equipment. More importantly, the cavity structure in the existing technology is not pressurized, so it also has poor durability and will fail after long-term use. The existing technology is difficult to combine the support effect and rebound effect and improve the durability of the product at the same time.

[0003] Therefore, the existing technology still needs to be improved and developed.

[0004] Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a sports equipment cavity structure with internal pressure and a preparation method thereof, so as to solve the problem that the sports equipment cavity structure prepared in the prior art is difficult to combine support effect and rebound effect, while improving product durability.

[0006] The technical solutions of the present invention are as follows:

[0007] A first aspect of the present invention discloses a method for preparing a cavity structure of sports equipment with internal pressure, comprising the steps of:

[0008] Acquiring mechanical data of the cavity structure of the sports equipment having internal pressure;

[0009] generating cavity distribution data, cavity structure data, and cavity air pressure data according to the mechanical data;

[0010] determining a cavity structure model according to the cavity distribution data and the cavity structure data;

[0011] The cavity structure model is imported into a 3D printer to print and generate the sports equipment cavity structure with internal pressure.

[0012] In one embodiment, obtaining mechanical data of the cavity structure of the sports equipment having internal pressure includes:

[0013] generating a three-dimensional model of the sports equipment cavity structure with internal pressure according to a user's body part corresponding to the sports equipment cavity structure with internal pressure;

[0014] Detecting force data of the user's body parts using a mechanical sensor;

[0015] Mechanical data on the three-dimensional model is generated according to the force data.

[0016] In one embodiment, generating cavity distribution data, cavity structure data, and cavity pressure data based on the mechanical data includes:

[0017] Acquiring elastic force data and supporting force data from the mechanical data;

[0018] Acquire a support force area and an elastic force area on the cavity structure of the sports equipment with internal pressure according to the elastic force data and the support force data;

[0019] generating the cavity distribution data according to the supporting force area and the elastic force area;

[0020] The cavity structure data and the cavity air pressure data are generated according to the elastic force data and the supporting force data.

[0021] In one embodiment, the cavity distribution data includes:

[0022] Cavity connection relationship, wherein the cavity connection relationship shows the connection relationship between adjacent cavities;

[0023] Regional cavity density, which indicates the number of cavities per unit area in the same horizontal plane;

[0024] The number of structural layers indicates the number of cavities in the vertical direction.

[0025] In one embodiment, the cavity structure data includes:

[0026] a cavity shape, wherein the cavity shape indicates the shape of the cell cavity;

[0027] Cavity size, which indicates the length of the single cavity in each direction in three-dimensional space;

[0028] Cavity wall thickness, which shows the side wall thickness of a cell cavity.

[0029] In one embodiment, the shape of the cavity includes ellipsoid, sphere, cuboid, cube and octahedron.

[0030] In one embodiment, the cavity air pressure data includes cavity internal pressure, the cavity internal pressure indicates the air pressure value in the cell cavity, and the cavity internal pressure is greater than 1 atm.

[0031] In one embodiment, the step of importing the cavity structure model into a 3D printer in a pressure environment or a 3D printer with an internal pressure increasing module to print and generate the sports equipment cavity structure with internal pressure comprises the following steps:

[0032] Importing the cavity structure model into a 3D printer to determine an initial printing position;

[0033] Printing a single cavity having an airbag structure at the initial printing position;

[0034] According to the cavity structure model, the printing process of the single cavity is repeated to generate the sports equipment cavity structure with internal pressure.

[0035] In one embodiment, before the cavity structure model is imported into a 3D printer to print and generate the sports equipment cavity structure with internal pressure, the method further includes:

[0036] According to the cavity structure model, a resin material for 3D printing is selected.

[0037] A second aspect of the present invention discloses a sports equipment cavity structure with internal pressure, which is prepared by the method for preparing a sports equipment cavity structure with internal pressure as described in any one of the above items.

[0038] In summary, the present invention discloses a sports equipment cavity structure with internal pressure, and a preparation method and application thereof, including the steps of: obtaining mechanical data of the sports equipment cavity structure with internal pressure; generating cavity distribution data, cavity structure data and cavity air pressure data according to the mechanical data; determining a cavity structure model according to the cavity distribution data, the number of cavity structures and the cavity internal pressure data; and importing the cavity structure model into a 3D printer in a pressure environment or a 3D printer with an internal pressure increasing module to print and generate the sports equipment cavity structure with internal pressure. The present invention obtains the specific cavity structure required for different areas through mechanical data, thereby determining the actual printing model, and then prints to obtain the sports equipment cavity structure that can provide structural design for different functional areas, so as to meet the user's personalized customization needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a flow chart of a method for preparing a cavity structure of sports equipment with internal pressure according to the present invention.

[0040] FIG. 2 is a flow chart of step S100 in the method for preparing a cavity structure of sports equipment with internal pressure according to the present invention.

[0041] FIG3 is a flow chart of step S200 in the method for preparing a cavity structure of sports equipment with internal pressure according to the present invention.

[0042] FIG. 4 is a flow chart of step S400 in the method for preparing a cavity structure of sports equipment with internal pressure according to the present invention.

[0043] FIG5 is a schematic diagram of a three-dimensional model of the sports equipment cavity structure with internal pressure as a sole cushioning material according to the present invention.

[0044] FIG6 is a schematic diagram of an ellipsoidal single cavity in the cavity structure of sports equipment with internal pressure according to the present invention.

[0045] FIG. 7 shows a 3×3×3 ellipsoidal array in a cavity structure of sports equipment with internal pressure according to the present invention.

[0046] FIG8 is a diagram of an ellipsoidal regular array in a cavity structure of sports equipment with internal pressure according to the present invention.

[0047] FIG9 is a schematic diagram of a 3D printer in the method for preparing a cavity structure of sports equipment with internal pressure according to the present invention. DETAILED DESCRIPTION

[0048] The present invention provides a cavity structure for sports equipment with internal pressure and a method for preparing the same. To make the objectives, technical solutions, and effects of the present invention more clear and explicit, the present invention is further described below in detail. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0049] 3D printing, an emerging model-making technology, has been gradually applied to the manufacturing of sports equipment. After entering the desired sports equipment structure into the 3D printing software, the equipment can be produced layer by layer through printing. This breaks away from the constraints of molds, allowing for personalized customization of sports equipment and providing different structural designs for different functional areas of the equipment.

[0050] The present invention combines 3D printing technology with the design of the cavity structure of sports equipment to obtain a cavity structure of sports equipment with internal pressure and excellent rebound effect. The detailed design of the cavity structure of sports equipment can be customized according to the needs of specific users, and different designs are provided for different functional partitions, thereby meeting the detailed needs of different users and broadening the application market. The present invention first obtains the mechanical data of the required cavity structure of sports equipment with internal pressure, and then generates cavity distribution data, cavity structure data and cavity air pressure data based on the mechanical data. The corresponding cavity structure model is determined by the cavity distribution data, the cavity structure data and the cavity air pressure data, and finally the cavity structure model is imported into a 3D printer to print and generate the cavity structure of sports equipment with internal pressure. Preferably, the cavity structure model is imported into a 3D printer in a pressure environment or a 3D printer with an internal pressure increasing module to ensure the internal pressure of the cavity structure. Through the feedback of different mechanical data, different functional partitions can be set on the cavity structure model of the cavity structure of the sports equipment with internal pressure, thereby providing different structural designs and different cavity internal air pressures for different partitions, realizing the personalized customization needs of users.

[0051] As shown in FIG1 , the method for preparing a sports equipment cavity structure with internal pressure according to the present invention comprises the following steps:

[0052] S100: Acquire mechanical data of the cavity structure of the sports equipment with internal pressure.

[0053] Sports equipment requires different support or elastic forces in different areas for different sports, different exercise areas, and users in different physical conditions. Therefore, it is necessary to collect mechanical data on the cavity structure of sports equipment in advance to design targeted 3D models. This allows for personalized, customized designs and helps protect different users during exercise.

[0054] In one embodiment, as shown in FIG2 , step S100 includes:

[0055] S110 : Generate a three-dimensional model of the sports equipment cavity structure with internal pressure according to the user's body part corresponding to the sports equipment cavity structure with internal pressure.

[0056] During specific implementation, the three-dimensional model of the cavity structure of the sports equipment with internal pressure is a model that reflects the overall outline and shape of the cavity structure of the sports equipment with internal pressure, so as to correspond to different parts of the body. Optionally, the cavity structure of the sports equipment with internal pressure corresponds to the user's feet as the sole cushioning material, forming a three-dimensional model structure in the shape of an insole; the cavity structure of the sports equipment with internal pressure corresponds to the user's shoulders as the strap cushioning material, forming a three-dimensional model structure in the shape of a rectangular parallelepiped; the cavity structure of the sports equipment with internal pressure corresponds to the user's head as the helmet cushioning material, forming a ring-shaped three-dimensional model structure. Constructing a corresponding three-dimensional model for a specific sports equipment can ensure the differentiated design of the cavity structure of the sports equipment with internal pressure, give priority to meeting the rebound performance and support performance required by the corresponding sports equipment, and provide customized services for users.

[0057] In one embodiment, as shown in FIG2 , after step S110, step S100 further includes:

[0058] S120, detecting force data of the user's body parts using a mechanical sensor;

[0059] S130: Generate mechanical data on the three-dimensional model according to the force data.

[0060] During specific implementation, the body parts corresponding to the sports equipment are first determined, such as the sole cushioning material corresponding to the sole of the foot, the strap cushioning material corresponding to the shoulder, the helmet cushioning material corresponding to the head, etc., and then mechanical sensors are installed on the corresponding body parts to analyze the force data of the body parts at different times during exercise, including the force position, force direction and force magnitude, etc., and then the force magnitude of the sports equipment corresponding to different positions on the body parts is obtained according to the principle of force interaction, thereby generating mechanical data of different areas on the three-dimensional model of the cavity structure of the sports equipment with internal pressure.

[0061] Furthermore, as shown in FIG1 , the method for preparing the sports equipment cavity structure with internal pressure according to the present invention further comprises the steps of:

[0062] S200 , generating cavity distribution data, cavity structure data, and cavity air pressure data according to the mechanical data.

[0063] Specifically, in sports equipment, different areas of sports equipment have different requirements for cushioning effects depending on their types and application scenarios. Taking the sole cushioning material as an example, during running and jumping, the areas corresponding to the soles and heels should mainly provide users with rebound force on the basis of landing cushioning, that is, shorten the time for the cavity structure to rebound, to assist in running and jumping; while the areas corresponding to the toes and the soles of the feet should mainly provide users with support force on the basis of landing cushioning, that is, reduce the stroke when the cavity structure is compressed, to reduce the burden on the foot muscles. The cavity structures of sports equipment corresponding to different sports and different parts need to be designed with different areas to provide different elastic forces or support forces. According to the force position, force direction and force magnitude of the sports equipment cavity structure relative to the human body during use, the area of ​​the sports equipment cavity structure corresponding to providing elastic force and the area providing support force can be determined, so that different areas can be allocated during the preparation process to provide different functions and achieve personalized customization.

[0064] In specific implementation, as shown in FIG3 , step S200 includes:

[0065] S210, obtaining elastic force data and supporting force data in the mechanical data;

[0066] S220, obtaining a support force area and an elastic force area on the cavity structure of the sports equipment having internal pressure according to the elastic force data and the supporting force data;

[0067] S230, generating the cavity distribution data according to the supporting force area and the elastic force area;

[0068] S240 : Generate the cavity structure data and the cavity air pressure data according to the elastic force data and the supporting force data.

[0069] Specifically, the elastic force data includes the rebound velocity, compression stroke, and force variation of the internally pressurized sports equipment cavity structure during exercise; while the support force data includes the support force and compression stroke provided by the internally pressurized sports equipment cavity structure in a stationary state. Based on the elastic force data and support force data, the desired effect of each region of the internally pressurized sports equipment cavity structure during use can be determined, thereby determining which regions are designated as elastic regions providing greater elastic force and which regions are designated as support regions providing greater support. As shown in Figure 5, taking the sole cushioning material as an example, elastic regions primarily providing elastic force are formed in the sole and heel regions, while support regions primarily providing support force are formed in the toes and arch regions. Optionally, the wall thickness of the elastic regions is reduced and the air cavity is increased, while the air cavity is reduced and the wall thickness is increased in the support region, thereby assigning different elastic and support regions to the internally pressurized sports equipment cavity structure. Furthermore, by adjusting the pressure within the cavity, the corresponding regions can be adjusted to correspond to greater elastic force or greater support force while ensuring durability.

[0070] During specific implementation, the cavity distribution data on the cavity structure of the sports equipment with internal pressure is obtained according to the different support force areas and elastic force areas allocated on the cavity structure of the sports equipment with internal pressure; the cavity structure data and cavity air pressure data on the cavity structure of the sports equipment with internal pressure are obtained according to the specific elastic force data and the support force data in different areas on the cavity structure of the sports equipment with internal pressure.

[0071] In specific implementation, the cavity distribution data includes cavity connection relationship, regional cavity density and number of structural layers. The 3D printer prints layer by layer, and the number of structural layers is the number of cavities in the vertical direction of the cavity structure of the sports equipment with internal pressure, that is, the specific number of printed layers; the regional cavity density is the number of cavities per unit area in the same horizontal plane, that is, in the same layer structure; the cavity connection relationship is the connection relationship between adjacent cavities, including horizontally adjacent and vertically adjacent cavities, and the air cavities of each cavity are independent of each other, that is, the cavity connection relationship includes separation, tangency and intersection, wherein the intersection distance is less than the wall thickness of the cavity to ensure that the air cavities of adjacent cavities are not interconnected. Optionally, each cavity is independently connected, or selectively connected according to the required function or position. Optionally, in the elastic region, the cavity density in the region decreases, and the cavity connection relationship is mainly a separation and tangency connection mode; in the supporting force region, the cavity density in the region increases, and the cavity connection relationship is mainly an intersection connection mode, but it is ensured that the air cavities in adjacent cavities are not connected.

[0072] In a specific implementation, the cavity structure data includes cavity shape, cavity size, and cavity wall thickness. The cavity shape refers to the shape of the single cavity, including the outer shape and the internal air cavity shape. The cavity shape includes ellipsoid, sphere, cuboid, and octahedron, and may also include other polygonal structures. The cavity shape corresponds to the regional cavity density design, thereby providing a customized cavity distribution for specific application scenarios to meet the user's personalized elasticity and support requirements. The cavity size refers to the length of the single cavity in each direction in three-dimensional space. Different cavity sizes are designed based on the cavity shape to provide different mechanical effects corresponding to different elastic and support areas, achieving personalized customization. The cavity wall thickness refers to the side wall thickness of the single cavity. The corresponding side wall thickness is designed according to the elastic and support areas to provide corresponding elastic or support forces. For example, when the side wall thickness is lower, the internal air cavity is larger, and the single cavity can provide higher elasticity; when the side wall thickness is higher, the internal air cavity is smaller, and the single cavity can provide higher support forces.

[0073] As shown in Figure 6, a schematic diagram of an ellipsoidal monomer cavity is shown, wherein Figure 6 (a) is an ellipsoidal monomer cavity, and Figure 6 (b) and Figure 6 (c) are respectively one-eighth of the side wall cut off from the ellipsoidal monomer cavity, and seven-eighths of the ellipsoidal monomer cavity with an air cavity left after cutting off one-eighth of the side wall. By repeatedly splicing the ellipsoidal monomer cavities, a complex array structure of a sports equipment cavity structure with internal pressure can be obtained. As shown in Figure 7, a schematic diagram of a 3×3×3 regular array under non-stress and stress conditions is shown, wherein Figure 7 (a) is a stereogram under non-stress conditions, Figure 7 (b) is a front view under non-stress conditions, and Figure 7 (c) is a front view under vertical stress conditions. Since the parameters of the ellipsoidal monomer cavities are the same, the regular array provides the same elastic force and support force effects. As shown in Figure 8, a regular array constructed with ellipsoidal monomer cavities is shown, wherein the structure of each monomer cavity is the same, thereby providing uniform support and elastic force.

[0074] Furthermore, as shown in FIG1 , the method for preparing the sports equipment cavity structure with internal pressure according to the present invention further comprises the steps of:

[0075] S300: Determine a cavity structure model according to the cavity distribution data, the number of cavity structures, and the cavity air pressure data.

[0076] During specific implementation, the cavity distribution data, the cavity structure data and the cavity air pressure data can be used to determine the required cavity distribution form, the specific structure of a single cavity and the air pressure inside a single cavity in the cavity structure of the sports equipment with internal pressure, thereby determining the cavity structure model to guide the specific 3D printing process.

[0077] Furthermore, as shown in FIG1 , the method for preparing the sports equipment cavity structure with internal pressure according to the present invention further comprises the steps of:

[0078] S400: Import the cavity structure model into a 3D printer to print and generate the sports equipment cavity structure with internal pressure.

[0079] Specifically, conventional 3D printing methods struggle to ensure that the air cavity within the aforementioned pressured sports equipment cavity structure is retained. The present invention utilizes DLP (Digital Light Processing) technology, employing top-down photocuring 3D printing technology to print layer by layer, starting from the initial printing position, a pressured sports equipment cavity structure having an internal airbag structure. More preferably, the pressured sports equipment cavity structure is printed using a 3D printer in a pressured environment or a 3D printer equipped with an internal pressure-increasing module, thereby ensuring that the cavity structure maintains a pressure environment greater than atmospheric pressure.

[0080] In one embodiment, as shown in FIG4 , step S400 includes:

[0081] S410, importing the cavity structure model into a 3D printer and determining an initial printing position;

[0082] S420, printing a single cavity having an airbag structure at the initial printing position;

[0083] S430 , repeating the printing process of the single cavity according to the cavity structure model to generate the sports equipment cavity structure with internal pressure.

[0084] FIG9 is a schematic diagram of a 3D printer according to an embodiment of the present invention, comprising a base 100, a printing platform 200, a mobile device 300, and a UV projector 400. The mobile device 300 drives the printing platform 200 to move relative to the base 100, thereby printing layer by layer to obtain the sports equipment cavity structure with internal pressure. Preferably, the 3D printer can be placed in a pressurized environment (i.e., an environment with a pressure greater than one atmosphere), or a pressure-increasing module can be provided within the 3D printer to ensure that the pressure within the printed single cavity is greater than atmospheric pressure.

[0085] Specifically, a first position 110 and a second position 120 are adjacently arranged in the vertical direction of the base 100, and the printing platform 200 is arranged above the base 100 and located at the first position 110; the printing platform 200 and the UV projector 400 are symmetrically arranged relative to the base 100, that is, the UV projector 400 is located below the base 100, so as to realize the printing process on the printing platform 200 by projecting a slice image of the cavity structure model of the cavity structure of the sports equipment with internal pressure. When printing starts, the printing platform 200 is located at the first position 110, and a monomer cavity 210 is printed on the printing platform 200, and an airbag structure is simultaneously formed in the monomer cavity 210; during the printing process, the moving device 300 moves the printing platform 200 so that the monomer cavity 210 is gradually separated from the resin solution in the first position 110, thereby ensuring that the airbag structure is formed in the monomer cavity 210; after printing a layer of the monomer cavity 210, the printing platform 200 and the monomer cavity 210 are continued to be driven by the moving device 300 to move, and the printed monomer cavity 210 is located at the second position 120, and a new layer of monomer cavity is continued to be printed below the monomer cavity 210, finally forming a sports equipment cavity structure with internal pressure that conforms to the cavity structure model. Specifically, during the printing process, by placing the 3D printer in a pressurized environment or equipping the 3D printer with a pressure-increasing module, the pressure within the airbag structure of the cell cavity 210 is ensured to be greater than atmospheric pressure, thereby providing better support and resilience. Optionally, the pressure within the cell cavity 210 is greater than 1 atm.

[0086] In one embodiment, a cavity model designed using 3D software is first imported into 3D printing software, and the printing process begins. As shown in FIG9 , a top-down stereolithography 3D printing method is used to print a cavity structure corresponding to the cavity model on a printing platform 200 at the first position 110 of the 3D printer, i.e., the resin tank. During the printing process, the printing platform 200 is continuously moved upward by a moving device 300 to print a layer of individual cavities 210 layer by layer. During the printing process, an airbag structure is formed within each individual cavity 210, providing enhanced resilience and support. The moving device 300 then continuously raises the printing platform 200 and the already printed individual cavity 210 to continue printing below the already printed individual cavity 210, forming a new layer of individual cavity structure. During the top-down stereolithography printing process, high-pressure air is retained within the airbag structure of each individual cavity 210, thereby providing enhanced support and resilience for the cavity structure of sports equipment with internal pressure. After printing layer by layer according to the cavity model, the printed cavity structure is removed, cleaned and post-cured to obtain the required sports equipment cavity structure with internal pressure.

[0087] In this embodiment, pressurized gas with a pressure of more than 1 atm is stored in the single cavity 210 to ensure the resilience and support performance of the sports equipment cavity structure with internal pressure.

[0088] In one embodiment, before importing the cavity structure model into a 3D printer to print the sports equipment cavity structure with internal pressure, the process also includes selecting a resin material for 3D printing based on the cavity structure model. Specifically, by adjusting the ratio of the resin material, the mechanical properties of the sidewalls of the individual cavities can be modified to achieve different stiffness requirements, providing personalized customization services.

[0089] In one embodiment, a 3D printing material with a modulus of 1 MPa is a pure soft material, and a 3D printing material with a modulus of 1 GPa is a pure hard material. The 3D printing material of the sports equipment cavity structure with internal pressure according to the present invention is obtained by mixing the pure soft material and the pure hard material, and the ratio of the pure soft material and the pure hard material in the 3D printing material is adjusted to provide users with materials with different stiffness, wherein the ratio of the pure hard material is increased to increase the stiffness of the 3D printing material, or the ratio of the pure soft material is increased to increase the elasticity of the 3D printing material.

[0090] Optionally, the pure soft material and the pure hard material are mixed in a fixed ratio to obtain a 3D printing material with fixed stiffness, and the sports equipment cavity structure with internal pressure is printed using this material. Optionally, the pure soft material and the pure hard material are mixed in a ratio of 3:7 to provide greater support force and achieve higher stiffness. Optionally, 3D printing materials with different ratios of the pure soft material and the pure hard material are pre-prepared, for example, 3D printing materials with ratios of 1:1, 3:7, 2:3 and 7:3 of the pure soft material and the pure hard material are respectively prepared, so that different ratios of 3D printing materials are used when printing areas requiring different elastic forces or support forces in the sports equipment cavity structure with internal pressure, so as to achieve the effect of providing different elastic forces or support forces in different areas without changing the specific physical structure of the single cavity in the sports equipment cavity structure with internal pressure, thereby expanding the design range of the sports equipment cavity structure with internal pressure, providing more dimensions for the preparation method of the sports equipment cavity structure with internal pressure of the present invention, and thus better providing personalized customization services.

[0091] In one embodiment, the present invention also provides a sports equipment cavity structure with internal pressure, which is prepared by the above-mentioned preparation method of the sports equipment cavity structure with internal pressure, wherein according to the specific needs of the human body during exercise, sports equipment cavity structures with internal pressure of different designs are provided, thereby providing different elastic or supporting force effects in different areas, assisting human movement and protection, and providing users with personalized customization services, thereby meeting the specific needs of different sports equipment buffering materials, having a wider range of applications, not being restricted by molds, and being conducive to market promotion.

[0092] In one embodiment, the present invention also provides an application of a sports equipment cavity structure with internal pressure in sports equipment buffering materials, wherein the sports equipment cavity structure with internal pressure is prepared by the above-mentioned preparation method of the sports equipment cavity structure with internal pressure, and corresponding to the requirements of different sports equipment buffering materials, the sports equipment cavity structure with internal pressure provides different elastic forces or supporting forces in different areas, thereby meeting the specific requirements of different sports equipment buffering materials, having a wider range of applications, not being restricted by molds, and being conducive to market promotion.

[0093] In summary, the present invention discloses a sports equipment cavity structure with internal pressure, and its preparation method and application, including the steps of: obtaining mechanical data of the sports equipment cavity structure with internal pressure; generating cavity distribution data, cavity structure data and cavity air pressure data according to the mechanical data; determining a cavity structure model according to the cavity distribution data, the cavity structure data and the cavity air pressure data; and importing the cavity structure model into a 3D printer to print and generate the sports equipment cavity structure with internal pressure. The present invention obtains the specific cavity structure required for different areas through mechanical data, thereby determining the actual printing model, and then prints the sports equipment cavity structure with internal pressure that can provide structural design and cavity internal air pressure values ​​for different functional areas, so as to meet the user's personalized customization needs.

[0094] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A method for preparing a sports equipment cavity structure with internal pressure, characterized in that: Includes steps: Acquiring mechanical data of the cavity structure of the sports equipment having internal pressure; Generate cavity distribution data, cavity structure data and cavity air pressure data according to the mechanical data; Determine a cavity structure model according to the cavity distribution data and the cavity structure data; The cavity structure model is imported into a 3D printer to print and generate the sports equipment cavity structure with internal pressure.

2. The method for preparing a sports equipment cavity structure with internal pressure according to claim 1, characterized in that: The step of obtaining mechanical data of the cavity structure of the sports equipment having internal pressure includes: generating a three-dimensional model of the sports equipment cavity structure with internal pressure according to the user's body part corresponding to the sports equipment cavity structure with internal pressure; Using a mechanical sensor to detect force data of a body part of the user; Mechanical data on the three-dimensional model is generated according to the force data.

3. The method for preparing a sports equipment cavity structure with internal pressure according to claim 2, characterized in that: The generating of cavity distribution data, cavity structure data and cavity air pressure data according to the mechanical data comprises: Acquiring elastic force data and supporting force data from the mechanical data; Acquire a support force area and an elastic force area on the sports equipment cavity structure with internal pressure according to the elastic force data and the support force data; generating the cavity distribution data according to the supporting force area and the elastic force area; The cavity structure data and the cavity air pressure data are generated according to the elastic force data and the supporting force data.

4. The method for preparing a sports equipment cavity structure with internal pressure according to claim 3, characterized in that: The cavity distribution data includes: Cavity connection relationship, wherein the cavity connection relationship shows the connection relationship between adjacent cavities; Regional cavity density, wherein the regional cavity density shows the number of cavities per unit area in the same horizontal plane; The number of structural layers shows the number of cavities in the vertical direction.

5. The method for preparing a sports equipment cavity structure with internal pressure according to claim 3, characterized in that: The cavity structure data includes: a cavity shape, wherein the cavity shape shows the shape of the cell cavity; Cavity size, wherein the cavity size indicates the length of the monomer cavity in each direction in three-dimensional space; Cavity wall thickness, which shows the side wall thickness of a cell cavity.

6. The method for preparing a sports equipment cavity structure with internal pressure according to claim 5, characterized in that: The shapes of the cavity include ellipsoid, sphere, cuboid, cube and octahedron.

7. The method for preparing a sports equipment cavity structure with internal pressure according to claim 3, characterized in that: The cavity air pressure data includes the cavity internal pressure, the cavity internal pressure displays the air pressure value in the single cavity, and the cavity internal pressure is greater than 1 atm.

8. The method for preparing a sports equipment cavity structure with internal pressure according to claim 1, characterized in that: The step of importing the cavity structure model into a 3D printer and printing and generating the sports equipment cavity structure with internal pressure comprises the following steps: Importing the cavity structure model into a 3D printer to determine an initial printing position; Printing a single cavity having an airbag structure at the initial printing position; According to the cavity structure model, the printing process of the single cavity is repeated to generate the sports equipment cavity structure with internal pressure.

9. The method for preparing a sports equipment cavity structure with internal pressure according to claim 7, characterized in that: Before the cavity structure model is introduced into a 3D printer in a pressure environment or a 3D printer with an internal pressure increasing module to print and generate the sports equipment cavity structure with internal pressure, the method further includes: According to the cavity structure model, a resin material for 3D printing is selected.

10. A sports equipment cavity structure with internal pressure, characterized in that: The hollow structure is prepared by the method for preparing a sports equipment cavity structure with internal pressure as described in any one of claims 1 to 9.

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