Elastic shock-absorbing structure, elastic shock-absorbing structure array, nano-bactericidal material structure

Abstract

The present invention proposes an elastic shock-absorbing structure, including an elastic body module and an energy-absorbing body module; wherein the elastic body module is a bionic synaptic structure, the elastic body base is provided with a hole, and the hole is located below the supporting unit; the energy-absorbing body module includes: an energy-absorbing body base and an energy-absorbing unit fixed on the top thereof; the energy-absorbing body base is connected to the bottom of the elastic body base; the energy-absorbing unit penetrates into the cavity through the hole; the energy-absorbing unit fills the cavity, or has a gap with the cavity wall of the cavity. The present invention also proposes a modular intelligent response elastic shock-absorbing structure array and a nano-bactericidal material structure.

Description

Technical Field

[0001] The present invention relates to the field of shock absorption technology, and in particular to an elastic shock absorption structure, a modular intelligent response elastic shock absorption structure array, and a nano sterilization material structure. Background Art

[0002] In life, flexible shock-absorbing cushion structures are widely used in mattresses, sofa seats, backpacks and other fields. Flexible shock-absorbing cushions can increase the contact area between the human body and the load, thereby reducing the pressure applied to the human body to avoid damage to the human body and provide a more comfortable use experience.

[0003] Existing shock-absorbing technologies applied to human body contact mainly rely on elastomeric materials (such as foam, rubber, air cushions, etc.) or elastomeric materials combined with mechanical spring structures (such as sofas, mattresses) to achieve shock-absorbing effects. In these applications, elastomeric materials are often responsible for direct contact with the human body to increase the contact area with the human body. However, the current design of the contact surface between elastomeric materials and the human body is often based on a single planar structure, and the response performance to human body loads is single, which usually cannot meet the needs of specialized application scenarios. When dealing with sudden impact loads, the deformation of the elastomeric cushion layer with a single planar structure is too large to efficiently absorb the impact energy, which can easily cause damage to the human body. In addition, the shock-absorbing material in contact with the human body is prone to breed bacteria and cause health problems. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides an intelligent response elastic shock absorbing mechanism with a modular filling system, which provides personalized options to meet different application scenarios.

[0005] The present invention adopts the following technical solutions:

[0006] The present invention proposes an elastomer module, comprising a force-bearing unit, a supporting unit and an elastomer base; the force-bearing unit comprises: a force-bearing mechanism and a force-bearing surface arranged on the top thereof; the top of the supporting unit is connected to the bottom of the force-bearing mechanism, and the bottom of the supporting unit is connected to the elastomer base; the supporting unit has or does not have a cavity inside.

[0007] In the elastic body module proposed by the present invention, the elastic body base is provided with a hole, and the hole is located below the supporting unit;

[0008] And / or, two or more of the force-bearing mechanism, the force-bearing surface, the support unit, and the elastic body base are integrally arranged;

[0009] And / or, the force-bearing unit, the supporting unit and / or the elastic base have a nano bactericidal material coating; the nano bactericidal material coating has at least one of the following bactericidal nanoparticles: silver, copper, gold, zinc oxide, copper oxide, titanium oxide; the size of the nanoparticles is 2nm-200nm. Preferably 20nm-100nm. More preferably 50nm-70nm.

[0010] The present invention also proposes an elastic shock absorbing structure, comprising an elastic body module and an energy absorbing body module; wherein:

[0011] The elastic body module is a bionic synapse structure, which includes: a force-bearing unit, a support unit and an elastic body base; the force-bearing unit includes: a force-bearing mechanism and a force-bearing surface arranged on the top thereof; the top of the support unit is connected to the bottom of the force-bearing mechanism, and the bottom is connected to the elastic body base, and has a cavity inside; the elastic body base is provided with a hole, and the hole is located below the support unit;

[0012] The energy absorbing body module comprises: an energy absorbing body base and an energy absorbing unit fixed on the top thereof; the energy absorbing body base is connected to the bottom of the elastic body base; the energy absorbing unit penetrates into the cavity through the hole; the energy absorbing unit fills the cavity or has a gap with the cavity wall of the cavity.

[0013] In the elastic body module or elastic shock absorbing structure proposed by the present invention, the thickness of the force-bearing unit is 1 mm-10 cm, preferably 10 mm-1 cm, and more preferably 50 mm-70 m.

[0014] And / or, the thickness of the elastic base is 2 mm-20 cm, preferably 20 mm-10 cm, and more preferably 50 mm-80 mm.

[0015] and / or, the cross-section of the force-bearing mechanism is circular, triangular, square, rectangular or hexagonal;

[0016] And / or, the force-bearing surface is an arc-shaped convex outward;

[0017] And / or, the longitudinal section of the support unit is spherical, cylindrical, conical or spindle-shaped. The spherical shape has a smaller aspect ratio and is suitable for situations with larger loads; the cylindrical shape has a larger aspect ratio and is suitable for situations with smaller loads; the conical or spindle shape has a moderate aspect ratio and is suitable for situations with general loads.

[0018] In the elastic body module or elastic shock absorbing structure proposed in the present invention, the material of the force-bearing mechanism, the force-bearing surface, the supporting unit, and the elastic body base is a mixture of one or more of TPE, TPR, silicone rubber, vulcanized rubber, and sponge;

[0019] And / or, the material of the energy absorbing body base and the energy absorbing unit is a mixture of one or more of EPP (Expanded polypropylene), TPE (Thermoplastic Elastomer), TPR (Thermoplastic rubber), silicone rubber, vulcanized rubber, sponge, porous aluminum, porous nickel, porous titanium and porous graphene.

[0020] In the elastic shock-absorbing structure proposed by the present invention, the thickness of the energy-absorbing body base is 3 mm-15 cm, preferably 30 mm-10 cm, and more preferably 50 mm-80 mm.

[0021] And / or, the distance between the top of the energy absorbing unit and the top wall of the cavity is 1 mm-5 cm, preferably 1.5 cm-4 cm, and more preferably 2 cm-3 cm.

[0022] In the elastic shock-absorbing structure proposed by the present invention, two or more of the force-bearing mechanism, the force-bearing surface, the supporting unit, the elastic body base, the energy-absorbing body base and the energy-absorbing unit are integrally arranged.

[0023] In the elastic shock-absorbing structure proposed by the present invention, the force-bearing unit, the supporting unit, the elastic body base, the energy-absorbing body base and / or the energy-absorbing unit have a nano-bactericidal material coating; the nano-bactericidal material coating has at least one of the nanoparticles with bactericidal activity: silver, copper, gold, zinc oxide, copper oxide, titanium oxide; the size of the nanoparticles is 2nm-200nm. Preferably, it is 20nm-100nm. More preferably, it is 50nm-70nm.

[0024] In the elastic shock absorbing structure proposed by the present invention, the aspect ratio (ratio of the longest diameter to the longest diameter perpendicular thereto) of the elastic shock absorbing structure is 0.25-10, preferably 0.5-5, and more preferably 1-3.

[0025] The present invention also proposes a modular intelligent response elastic shock absorbing structure array, comprising an elastic body module; the elastic body bases between the plurality of the elastic body modules are connected to each other;

[0026] Or, it includes an elastic shock-absorbing structure; the elastic body bases between the multiple elastic shock-absorbing structures are connected to each other, and the energy-absorbing body bases are connected to each other.

[0027] In the modular intelligent response elastic shock absorbing structure array proposed by the present invention, the plurality of elastic body modules form at least one of a rectangular array, a circular array, a mirror symmetrical array and an asymmetric array;

[0028] Alternatively, the plurality of elastic shock absorbing structures form at least one of a rectangular array, a circular array, a mirror-symmetrical array and an asymmetric array.

[0029] In the modular intelligent response elastic shock absorbing structure array proposed by the present invention, the elastic shock absorbing structure density of the modular intelligent response elastic shock absorbing structure array is 10-100000 pieces / square meter, preferably 100-10000 pieces / square meter, and more preferably 500-5000 pieces / square meter.

[0030] The present invention also proposes a nano bactericidal material structure, comprising one or more elastomer modules, wherein the force-bearing unit, the supporting unit and / or the elastomer base have at least one of the nanoparticles with bactericidal activity: silver, copper, gold, zinc oxide, copper oxide, titanium oxide;

[0031] Or, comprising one or more elastic shock absorbing structures, wherein the force-bearing unit, the supporting unit, the elastic body base, the energy absorbing body base and / or the energy absorbing unit have at least one of the nanoparticles with bactericidal activity: silver, copper, gold, zinc oxide, copper oxide, titanium oxide;

[0032] The size of the nanoparticles is 2nm-200nm, preferably 20nm-100nm, and more preferably 50nm-70nm.

[0033] In the present invention, the bionic synaptic structure can automatically respond to adjust the force direction and reduce the compressive stress acting on the human body or object. The realization of this function is directly related to the synaptic bionic structure and the shape of the array it constitutes. The deformation of the synaptic structure unit will directly affect the deformation of the array.

[0034] The modular intelligent response elastic shock absorbing structure array proposed by the present invention is formed by multiple elastic shock absorbing structures, and the elastic shock absorbing structure is divided into two modules, the upper part is an elastic body module of a bionic synaptic structure in contact with the human body, and the lower part is an energy absorbing body module responsible for absorbing sudden impact loads. Among them, the design of the elastic body module is inspired by the synaptic structure of the organism, and the design is a bionic synaptic structure. While maintaining lightweight, the structure can automatically increase the contact area between the load and the human body, and intelligently adjust the compressive stress applied to the human body. In the conventional pressure process, the pressure is intelligently and dynamically adjusted by the deformation of the isolated elastic shock absorbing structure and the overall deformation of the array formed by the arrangement of multiple elastic shock absorbing structures, thereby realizing the intelligent matching between the contact area and the load. In the process of sudden impact load, the modular intelligent response elastic shock absorbing structure array can maintain the maximum contact area with the human body while the energy absorbing material module filled in the elastic body module gradually absorbs the impact energy through plastic deformation, thereby reducing the damage to the human body caused by the impact. In the present invention, the elastic body module and the energy absorbing body module can respectively select appropriate materials for dynamic adjustment to adapt to different application scenarios. Applying nano antibacterial coating on the surface of elastomer can effectively resist the growth of common bacteria.

[0035] The modular intelligent response elastic shock-absorbing structure array provided by the present invention can be applied to seat cushions, backpacks, child seats, sofas, mattresses, helmets, and human safety protection.

[0036] The beneficial effects of the present invention are as follows: compared with the existing technology, the modular structural design provides a flexible combination mode for different application scenarios; the synaptic structure array design of the elastic body with a cavity can dynamically adjust the contact area between the load and the human body, while maintaining the shock absorption effect, it can save materials and obtain a lightweight effect, and has better stability; the addition of the energy-absorbing body module enables the shock-absorbing pad to obtain the ability to cope with sudden heavy loads, and the safety factor is greatly improved; the modular design makes it easier to replace and adjust the material. It has a broad-spectrum antibacterial property and can reduce the spread of diseases caused by bacterial infections. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the elastic shock absorbing structure of the present invention.

[0038] Figure 2A A top view of a solid array of intelligent responsive elastic shock absorbing structures.

[0039] Figure 2B A side cross-sectional view of a solid array of smart responsive elastic shock absorbing structures.

[0040] Figure 3 Schematic diagram of the intelligent response of a solid intelligent response elastic shock-absorbing structure array when dealing with loads.

[0041] Figure 4A A top view of a modular intelligent response elastic shock-absorbing structure array.

[0042] Figure 4B A side cross-sectional view of a modular intelligent response elastic shock absorbing structure array.

[0043] Figure 5 It is a schematic diagram of the response of the elastic shock absorbing structure in the present invention to conventional loads and sudden loads.

[0044] Fig. 6A It is a schematic diagram of a circular non-rotating array of modular intelligent response elastic shock-absorbing structure arrays in the present invention.

[0045] Figure 6B It is a circular rotating array of modular intelligent response elastic shock absorbing structure array in the present invention.

[0046] Figure 6C It is a mirror image annular rotating array of the modular intelligent response elastic shock absorbing structure array in the present invention.

[0047] Figure 7 This is a scanning electron microscope image of the silver nanoparticles (diameter of 5nm to 50nm) coated on the TPE material in the present invention.

[0048] Figure 8 Schematic diagram of the aspect ratio of the elastic shock absorbing structure in the present invention, wherein a is the longest diameter of the elastic shock absorbing structure, and b is the longest diameter perpendicular to the longest diameter. DETAILED DESCRIPTION

[0049] The invention is further described in detail with reference to the following specific embodiments and drawings. The process, conditions, experimental methods, etc. for implementing the present invention, except for the contents specifically mentioned below, are all common knowledge and common common sense in the art and are not particularly limited by the present invention.

[0050] Figure 1-Figure 7 In the figure, 1-elastic body module; 11-force-bearing unit; 111-force-bearing mechanism; 112-force-bearing surface; 12-support unit; 121-cavity; 13-elastic body base; 131-hole; 2-energy-absorbing body module; 21-energy-absorbing body base; 22-energy-absorbing unit.

[0051] like Figure 1As shown, the elastic body module 1 proposed by the present invention includes a force unit 11, a support unit 12 and an elastic body base 13; the force unit 11 includes: a force mechanism 111 and a force surface 112 arranged on the top thereof; the top of the support unit 12 is connected to the bottom of the force mechanism 111, and the bottom is connected to the elastic body base 13; the support unit 12 has a cavity 121 inside or does not have the cavity 121. The elastic body base is provided with a hole 131, and the hole 131 is located below the support unit.

[0052] like Figure 1 The elastic shock absorbing structure shown includes an elastomer module 1 and an energy absorbing body module 2, wherein the energy absorbing body module 2 includes an energy absorbing body base 21 and an energy absorbing unit 22 fixed on the top thereof; the energy absorbing body base is connected to the bottom of the elastomer base; the energy absorbing unit penetrates into the cavity 121 through the hole; the energy absorbing unit fills the cavity 121, or has a gap with the cavity wall.

[0053] like Figure 2A , 2B As shown, a solid intelligent response elastic shock-absorbing structure array can be used in conventional non-heavy load application scenarios. The upper part of the elastic shock-absorbing structure is an arc-shaped force-bearing surface, the middle part is a conical structure, and the lower part is an integrated base connected to the bionic synaptic structural unit. The arc-shaped force-bearing surface, the conical structure and the integrated base are all made of the same elastomeric material, such as TPE, TPR, silicone rubber, polyurethane rubber, polysulfide rubber, natural rubber and sponge. This structural design is only applicable to application scenarios without heavy impact loads. Among them, the array formed by the intelligent response elastic shock-absorbing structure can also be a ring array, a mirror-symmetrical array, and an irregular asymmetric array.

[0054] like Figure 3 The figure shows the schematic diagram of the intelligent stress response of a solid intelligent response elastic shock-absorbing structure array under external load. Since there are a large number of gaps between the elastic shock-absorbing structures, the number of gaps is determined by the density of the array, and the density of the array will affect the load stress acting on the human body. The density of the synaptic structure unit array is 10-100,000 per square meter; when the external load is applied to the shock-absorbing structure, the deformation of the shock-absorbing structure will automatically point the force direction of the elastic shock-absorbing structure to the force point, and automatically increase the number of elastic shock-absorbing structures in the direction of load application, thereby increasing the contact area and reducing the load stress applied to the human body.

[0055] As shown in Figure 4, a schematic diagram of the modular intelligent response elastic shock-absorbing structure array of the present invention is suitable for application scenarios where sudden heavy loads occasionally exist. It mainly includes an upper elastomer module and a lower energy-absorbing body module, wherein the elastomer module is designed as a bionic synapse structure. The upper bionic synapse structure is divided into a force-bearing unit, a support unit with a cavity and an integrated elastomer base connected to the bionic synapse structure unit. The upper elastomer module is responsible for contact with the human body and dispersing compressive stress. The lower energy-absorbing body module mainly responds to sudden heavy loads, absorbs impact energy through plastic deformation of the energy-absorbing body material, and avoids or reduces damage to the human body or object caused by sudden impulse. According to the deformation characteristics of different elastomers and the type of load, the thickness of the synaptic structure, cavity and base can be adjusted between 2mm and 30cm. The distance from the top of the energy-absorbing unit to the bottom of the force-bearing mechanism can be adjusted between 0.1mm and 10cm according to different application scenarios.

[0056] like Figure 5 The figure shows the response characteristics of the elastic shock absorbing structure of the present invention under different loads. Under no-load conditions (A in the figure), the upper elastomer module and the lower energy-absorbing module are separated. Under normal loads (B in the figure), the stress of the applied load can be dispersed only by the deformation of the elastomer module, and the energy-absorbing module still does not deform. Under sudden heavy load conditions (C in the figure), the deformation of the upper elastomer module still cannot decelerate the external impact to reduce the impact energy. At this time, the lower energy-absorbing module starts to work and gradually absorbs the energy of the external impact through plastic deformation, thereby reducing the damage to the human body caused by the external impact.

[0057] like Fig. 6A , 6B The following are different array arrangements of the modular intelligent response elastic shock absorbing structure array of the present invention, an annular non-rotating array ( Fig. 6A ) can effectively support the plane pressure, and the annular rotating array can effectively support the spherical pressure ( Figure 6B ), the mirrored annular rotating array can effectively support double spherical pressure (such as hip pressure) ( Figure 6C ).

[0058] like Figure 7 The figure shows a scanning electron microscope image of the TPE elastic shock-absorbing structure after spraying silver nanoparticles in the present invention. The diameter of the silver nanoparticles used is between 5nm and 50nm, the coating dispersion is polyethylene glycol, the coating method is immersion, and the drying method is natural convection drying. The area density of the silver nanoparticles in the coating is 0.3mg / cm 2 The scanning electron microscope image clearly shows that the silver nanoparticles are evenly dispersed on the surface of the TPE material.

[0059] Table 1 shows the antibacterial performance test of the TPE material coated with the silver nanoparticle antibacterial coating conducted by the present invention, and the bacteria used are two common bacteria, Staphylococcus aureus and Escherichia coli. The results show that the TPE shock-absorbing layer with the antibacterial coating can kill more than 94% of the bacteria and shows good cycle stability. Even after washing 10 times (immersing and stirring the TPE material coated with the antibacterial coating in pure water for 1-10 times, each time for half an hour), the antibacterial performance of the material has not decreased significantly.

[0060] Table 1

[0061]

[0062] The modular intelligent response antibacterial elastic shock-absorbing structure provided by the present invention has a bionic synaptic structure elastomer array, which can intelligently respond to external applied loads and automatically adjust the load pressure, effectively reducing the pressure of the load stress on the human body. By designing a cavity inside the bionic synaptic structure, the secondary energy absorption material module can be quickly installed inside the synaptic structure elastomer module, so that the composite structure can efficiently absorb the energy of the sudden heavy load, avoid or reduce damage to the human body, and is very suitable for application scenarios such as safety protection. The design of the synaptic structure elastomer and the secondary energy absorption material are both modular, and suitable elastomer materials and secondary energy absorption material modules can be selected according to application requirements for combination. It has good customizability, is easy and quick to use, and has the characteristics of lightweight. By applying nano-bactericidal coating material on the surface of the elastic shock-absorbing pad, more than 90% of common bacteria can be effectively killed and bacteria can be prevented from growing on the surface of the shock-absorbing pad.

[0063] The present invention can select elastic body modules to fill energy absorbing body modules to form elastic shock absorbing structures, or not to fill energy absorbing body modules according to different load conditions in different application scenarios. Among them, the single-use elastic body module can adopt a solid or hollow structure; different numbers of elastic shock absorbing structures and different arrangements can form a modular intelligent response elastic shock absorbing structure array suitable for various application scenarios. All the components mentioned in the present invention can be produced in an integrated manner.

[0064] The protection content of the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the inventive concept, changes and advantages that can be thought of by those skilled in the art are included in the present invention and are protected by the attached claims.

Claims

1. An elastic shock absorbing structure, characterized in that: It comprises an elastic body module (1) and an energy absorbing body module (2); wherein: The elastic body module (1) is a bionic synapse structure, comprising: a force-bearing unit (11), a supporting unit (12) and an elastic body base (13); The force-bearing unit (11) comprises: a force-bearing mechanism (111) and a force-bearing surface (112) arranged on the top thereof; the material of the force-bearing mechanism (111), the force-bearing surface (112), the support unit (12), and the elastic body base (13) is: a mixture of one or more of TPE, TPR, silicone rubber, vulcanized rubber and sponge; the force-bearing surface (112) is an arc-shaped body convex outwards; The support unit (12) has a top connected to the bottom of the force-bearing mechanism (111), a bottom connected to the elastic body base (13), and has a cavity (121) inside; The elastic body base (13) is provided with a hole (131), and the hole (131) is located below the supporting unit (12); The energy absorbing body module (2) comprises: an energy absorbing body base (21) and an energy absorbing unit (22) fixed on the top thereof; the energy absorbing body base (21) is connected to the bottom of the elastic body base (13); the energy absorbing unit (22) penetrates the hole (131) and penetrates into the cavity (121); the energy absorbing unit (22) fills the cavity (121) or has a gap with the cavity wall of the cavity (121).

2. The elastic shock absorbing structure according to claim 1, characterized in that: The thickness of the force-bearing unit (11) is 1 mm-10 cm; And / or, the thickness of the elastomeric base (13) is 2 mm-20 cm; And / or, the cross section of the force-bearing mechanism (111) is circular, triangular, square, rectangular or hexagonal; And / or, the longitudinal section of the support unit (12) is spherical, cylindrical, conical or spindle-shaped.

3. The elastic shock absorbing structure according to claim 1, characterized in that: The energy absorbing body base (21) and the energy absorbing unit (22) are made of a material selected from the group consisting of EPP, TPE, TPR, silicone rubber, vulcanized rubber, sponge, porous aluminum, porous nickel, porous titanium and porous graphene.

4. The elastic shock absorbing structure according to claim 1, characterized in that: The thickness of the energy absorbing body base (21) is 3 mm to 15 cm; And / or, the distance between the top of the energy absorbing unit (22) and the top wall of the cavity (121) is 1 mm-5 cm.

5. The elastic shock absorbing structure according to claim 1, characterized in that: Among the force-bearing mechanism (111), the force-bearing surface (112), the support unit (12), the elastic body base (13), the energy-absorbing body base (21), and the energy-absorbing unit (22), two or more components are integrally arranged.

6. The elastic shock absorbing structure according to claim 1, characterized in that: The force-bearing unit (11), the supporting unit (12), the elastomeric base (13), the energy-absorbing base (21) and / or the energy-absorbing unit (22) have a nano-bactericidal material coating; the nano-bactericidal material coating has at least one of the following nanoparticles with bactericidal activity: silver, copper, gold, zinc oxide, copper oxide, titanium oxide; the size of the nanoparticles is 2nm-200nm.

7. The elastic shock absorbing structure according to claim 1, characterized in that: The ratio of the longest diameter of the elastic shock absorbing structure to the longest diameter perpendicular thereto is 0.25-10.

8. A modular intelligent response elastic shock absorbing structure array, characterized in that: It comprises the elastic shock absorbing structure as claimed in claim 1; the elastic body bases (13) between the plurality of elastic shock absorbing structures are connected to each other, and the energy absorbing body bases (21) are connected to each other.

9. The modular intelligent response elastic shock absorbing structure array according to claim 8, characterized in that: The plurality of elastic body modules form at least one of a rectangular array, an annular array, a mirror-symmetrical array and an asymmetric array; Alternatively, the plurality of elastic shock absorbing structures form at least one of a rectangular array, a circular array, a mirror-symmetrical array and an asymmetric array.

10. The modular intelligent response elastic shock absorbing structure array according to claim 8, characterized in that: The elastic shock-absorbing structure density of the modular intelligent response elastic shock-absorbing structure array is 10-100,000 per square meter.

11. A nano sterilization material structure, characterized in that: The elastic shock absorbing structure comprises one or more elastic shock absorbing structures as claimed in claim 1, wherein the force-bearing unit (11), the supporting unit (12), the elastic body base (13), the energy absorbing body base (21) and / or the energy absorbing unit (22) have at least one of the nanoparticles with bactericidal activity: silver, copper, gold, zinc oxide, copper oxide, titanium oxide; The size of the nanoparticles is 2nm-200nm.

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