Anti-skidding and shock-absorbing mute composite floor

Abstract

The utility model belongs to the technical field of building materials, and relates to an anti-skidding and shock-absorbing mute composite floor which sequentially comprises a resin layer, a mute layer, a base material layer, a balance layer and a shock-absorbing layer from top to bottom. Wherein the mute layer is a cork layer, and the thickness of the mute layer is 2-4 mm; the base material layer is a plywood layer, and the thickness of the base material layer is 7-9 mm; the balance layer is a plywood layer, and grooves which are uniformly distributed in parallel are formed in the surface of the balance layer; the damping layer is a foaming material layer, the thickness of the damping layer is 4-6 mm, and the damping layer is provided with evenly-distributed air channels. The mute layer is made of cork, is light in density and has soft and elastic touch feeling, cells of the cork are of a honeycomb structure filled with gas, have low conductivity on heat, noise and vibration and have a synergistic effect with the foaming damping layer at the bottom, and the surface is coated with the anti-skid coating with good flexibility, so that the anti-skid damping mute floor has a good impact sound absorption effect; the impact absorption performance is excellent, the head injury evaluation value is low, and the protection and mute effects are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building materials, and relates to a floor, in particular to a mute composite floor with anti-skid and shock absorption. BACKGROUND

[0002] With the improvement of living standards and the deepening of population aging, people's requirements for the comfort and privacy of living environment are also correspondingly high. Quiet living environment is convenient for rest, sleep and activities that require concentration. In addition, nearly 90% of the elderly in China still choose home-based care. Ensuring the safety, comfort and convenience of living space is the key prerequisite for home-based care and high-quality life.

[0003] The living space is composed of a top surface, a wall surface and a ground surface. Common floor materials for home decoration include ordinary indoor wood floors and ceramic tiles. Ordinary indoor wood floors include solid wood floors, three-layer solid wood composite floors and multi-layer solid wood composite floors. These materials have poor shock absorption and mute effect, which cannot meet people's requirements for the safety and quietness of home environment.

[0004] Head Injury Criterion (HIC) is an index used to assess the degree of injury that the head may suffer in a collision. It is calculated based on head acceleration and collision duration to predict the likelihood of head injury. The higher the HIC value, the greater the risk of head injury.

[0005] The noise generated by a person walking on the floor can be divided into three parts: first, the noise generated by the interaction of the heel and the floor; then the respective vibrations, generating self-noise (for the floor, the sound radiation is mainly generated in the space where the person is located); finally, the vibration of the floor propagates along the floor and eventually radiates noise to the space below; due to the very short impact time, the sound signal generated is only 10-20 ms, and the acceleration noise and self-noise are difficult to separate, so the noise generated by a person walking on the floor is divided into two parts: the noise formed in the space where the walker is located, called impact sound; the noise formed in the space below, called impact sound insulation.

[0006] The porous structure of softwood also makes it have low conductivity to heat, noise and vibration; the noise generated by walking or collision in life, when the sound wave enters the softwood material, the sound wave can enter the softwood interior along the pore, causing the vibration of the air molecules in the pore, due to the viscous resistance of air and the friction between air molecules and the pore wall of softwood, part of the sound energy is converted into friction heat and consumed, the remaining sound energy passes through the substrate layer and the balance layer, reaches the shock absorption layer made of foamed polypropylene, the friction between the air molecules in the porous structure and the foamed polypropylene wall converts the remaining sound energy into heat energy and consumes it, thereby achieving impact sound absorption and impact sound insulation, and achieving the purpose of mute. SUMMARY

[0007] In order to overcome the safety and the deficiency of the existing ordinary indoor wood floor in the aspect of silence, the utility model provides a kind of antiskid shock attenuation's silent floor with protection function.

[0008] The utility model discloses the following technical scheme:

[0009] A kind of antiskid shock attenuation's silent composite floor, including substrate layer, from top to bottom including resin layer, silent layer, substrate layer, balance layer and shock attenuation layer in sequence;Wherein, the silent layer is cork layer, thickness 2~4mm;The substrate layer is plywood layer, thickness 7~9mm;The balance layer is plywood layer, surface is equipped with evenly parallel distribution's groove;The shock attenuation layer is foamed material layer, thickness 4~6mm, is equipped with evenly distributed air passage.

[0010] The utility model more preferably discloses, resin layer is arranged at the top of silent layer, is any one in water-based paint solidified layer, polyurethane paint solidified layer or UV paint solidified layer, evenly distributed anti-skid particle in solidified layer improves the antiskid performance of floor surface.

[0011] The utility model more preferably discloses, silent layer thickness 3mm, the density of cork is 450~500kg / m 3 .

[0012] The utility model more preferably discloses, the plywood of substrate layer is by any one or several combinations of birch, eucalyptus, poplar;Preferably, substrate layer thickness 8mm, the plywood is birch.

[0013] The utility model more preferably discloses, the groove of balance layer surface setting, along parallel to the short side of floor evenly arranged;Further, the length of groove is the distance between the starting end of floor female groove and the end of female groove, width is 2~3mm, depth is 1.5~2mm.The groove of parallel arrangement can reduce the stress concentration in plywood, avoid the warping of board.

[0014] The utility model more preferably discloses, shock attenuation layer is foamed polypropylene layer, and foaming ratio is 20~30 times.

[0015] Further, the cross section of air passage is circular, diameter 2~3mm, depth is the height of shock attenuation layer.

[0016] Foamed polypropylene is a kind of lightweight, high-performance foamed plastic material, because its closed-cell structure makes it have good heat insulation and sound insulation effect, to ensure that the heat transfer of floor is not affected, set up evenly distributed circular air passage, the diameter of air passage is 2~3mm, depth is the thickness of foamed polypropylene sheet.

[0017] Preferably, the pressing mode between the mute layer and the base material layer is cold pressing or hot pressing.

[0018] Preferably, the pressing mode between the shock absorption layer and the balance layer is cold pressing.

[0019] The utility model discloses a slip -resisting shock -absorbing mute floor with protection function, the mute layer is composed of cork layer, and the cork is a kind of natural cell material, and it usually refers to the cork parenchyma formed by the cork cambium of tree species such as Quercus suber, and more than 2 million cork cells per cubic meter of cork, and the cell is composed of hollow and closed parenchyma cell. More than two-thirds of the space in the cork cell cavity is filled with compressible air, and the air is locked tightly by cork fat with excellent sealing performance in cell wall. The lignin and polysaccharide in the cell wall composition give the cell wall elasticity and stiffness, provide mechanical strength support, so that the inside of cork can well balance external pressure;After being made into sheet, the surface of cork has natural concave-convex texture, and the texture increases the friction of contact surface, and the softness of cork makes it have good elasticity, which helps to disperse pressure, reduce sliding, and because of its softness, it is more attached to the contact surface, increasing the contact area, so the slip resistance is excellent, and the utility model has excellent slip resistance in cooperation with the slip -resisting resin layer.

[0020] The mute layer and the shock absorption layer of the utility model adopt cork and foamed polypropylene material, which are both low-density and elastic materials composed of abundant closed airbags;When the floor is impacted, under the action of external load, the shock absorption effect of compressed closed gas is utilized, the air friction loss energy in the cell absorbs the impact force of the load, and after the load is removed, the cork cell of the mute layer and the foamed structure of the shock absorption layer will slowly rebound, thereby playing the role of damping and muting;And the porous structure helps to disperse the impact force received to a larger area, thereby reducing local stress concentration and local impact absorption force;The balance layer is provided with uniformly distributed grooves, which not only can reduce the stress concentration of the floor base material, but also can provide air damping between the grooves to reduce the propagation of vibration and impact force;The mute layer, the balance layer and the shock absorption layer jointly act, so that the impact absorption performance of the utility model is excellent, in addition, in the case that the head of a person falls and contacts the mute layer of the utility model, the softness and elasticity of the cork and the foamed shock absorption layer have a certain protective effect on the head of the person after falling, and have a lower head injury evaluation value (HIC).

[0021] The cork material of the mute layer only uses tree bark, does not cause any impact on the growth of trees, and is a recyclable green material;The foamed polypropylene of the shock absorption layer is a green and environment-friendly material, which can be recycled and reused, and will not cause white pollution;During the manufacturing process of the floor, low-aldehyde or no-aldehyde environment-friendly adhesive is used, the formaldehyde emission of the utility model is low, and it belongs to green and environment-friendly material.

[0022] Beneficial effects

[0023] This utility model discloses a non-slip, shock-absorbing, and sound-absorbing composite floor. Its sound-absorbing layer is composed of cork. Cork material has a light density and a soft and elastic touch. The cells of cork have a honeycomb structure filled with gas, which has low conductivity to heat, noise, and vibration. It works synergistically with the bottom foamed shock-absorbing layer. The surface is coated with a non-slip and flexible coating, which makes the non-slip, shock-absorbing, and sound-absorbing floor have a good effect on absorbing impact sound. It has excellent impact absorption performance and a low head injury rating, and has the functions of protection and sound absorption. All materials used are green and environmentally friendly, ensuring the safety and health of the living environment in multiple ways. Attached Figure Description

[0024] Figure 1 Schematic diagram of the anti-slip and shock-absorbing silent composite flooring;

[0025] Figure 2 Bottom view of the anti-slip, shock-absorbing, and sound-absorbing composite flooring;

[0026] Figure 3 A schematic diagram of the groove distribution in the balance layer of the anti-slip and shock-absorbing silent composite flooring;

[0027] The names of the components are as follows: 1. Resin layer, 2. Sound insulation layer, 3. Substrate layer, 4. Balancing layer, 5. Vibration damping layer. Detailed Implementation

[0028] The present invention will be described in detail below with reference to the embodiments, so that those skilled in the art can better understand the present invention, but the present invention is not limited to the following embodiments.

[0029] Example 1

[0030] like Figure 1 , 2 As shown, a non-slip, shock-absorbing, and sound-absorbing composite flooring includes a resin layer 1, a sound-absorbing layer 2, a substrate layer 3, a balancing layer 4, and a shock-absorbing layer 5. The sound-absorbing layer 2 has a thickness of 2 mm and uses a material with a density of 500 kg / m³. 3 The material consists of cork; resin layer 1 uses UV-cured coating with seven coats of primer and two coats of anti-slip topcoat to ensure the wear resistance, elasticity, and anti-slip properties of the coating; substrate layer 3 is made of 9mm thick birch plywood; sound-absorbing layer 2 is bonded to substrate layer 3 with melamine resin adhesive and hot-pressed; balancing layer 4 has evenly distributed grooves with a width of 3mm and a depth of 2mm; shock-absorbing layer 5 is a foamed polypropylene sheet with a foaming ratio of 30 times and a thickness of 4mm, with evenly distributed air holes of 2mm in diameter on the foamed polypropylene sheet; shock-absorbing layer 5 and balancing layer 4 are bonded with polyvinyl acetate adhesive and cold-pressed.

[0031] The distance between each groove is 58mm. Taking a 910mm long floor as an example, if the groove width is 2mm, a total of 14 grooves are arranged, the distance between the grooves is 58mm, and the distance between the grooves at the two ends of the floor is 64mm; if the groove width is 3mm, a total of 14 grooves are arranged, the distance between the grooves is 58mm, and the distance between the grooves at the two ends of the floor is 57mm.

[0032] The impact absorption rate of the anti-skid and shock-absorbing silent floor is 44% or more, the head injury criterion (HIC) is 603, the sliding friction coefficient is 0.58 or more, the impact sound insulation improvement value is 13dB or more, and the formaldehyde release amount is less than 0.014mg / m 3 The head injury criterion value is low, the impact sound improvement value is high, the formaldehyde release amount is low, and the anti-skid and shock-absorbing silent floor has certain protection, silence and environmental protection effects.

[0033] Embodiment 2

[0034] As shown in Figure 1 , 2 , an anti-skid and shock-absorbing silent composite floor comprises a resin layer 1, a silent layer 2, a base material layer 3, a balance layer 4 and a shock-absorbing layer 5, wherein the silent layer 2 has a thickness of 3mm and is made of softwood with a density of 450kg / m 3 ; the resin layer 1 uses water-based paint, a total of two primers and two topcoats, the paint surface has anti-skid, anti-pollution and flexibility meeting the use requirements and has certain anti-skid performance; the base material layer 3 is made of 7mm poplar plywood, the silent layer 2 and the base material layer 3 are pasted by using polyurethane adhesive and are formed by cold pressing; the balance layer 4 has a groove width of 2mm and a depth of 1.5mm; the shock-absorbing layer 5 is a foamed polypropylene sheet with a foaming ratio of 20 times and a thickness of 6mm and is provided with uniformly distributed air round hole channels with a diameter of 2mm; the shock-absorbing layer 5 and the balance layer 4 are pasted by using polyurethane adhesive and are formed by cold pressing.

[0035] The impact absorption rate of the anti-skid and shock-absorbing silent floor is 46% or more, the head injury criterion (HIC) is 569, the sliding friction coefficient is 0.56 or more, the impact sound insulation improvement value is 14dB or more, and the formaldehyde release amount is less than 0.006mg / m 3 The impact absorption performance is good, the impact sound improvement value is high, the formaldehyde release amount is extremely low, and the anti-skid and shock-absorbing silent floor has certain protection, silence and environmental protection effects.

[0036] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion or direct or indirect application in other related technical fields is also included in the patent protection range of the present application.

Claims

1. A slip-resistant, shock-absorbing, and quiet composite floor, comprising a substrate layer (3) sequentially comprising, from top to bottom, a resin layer (1), a quiet layer (2), the substrate layer (3), a balancing layer (4), and a shock-absorbing layer (5); characterized in that: The mute layer (2) is a cork layer with a thickness of 2-4 mm; the substrate layer (3) is a plywood layer with a thickness of 7-9 mm; the balancing layer (4) is a plywood layer with a surface provided with uniformly and parallelly distributed grooves; and the shock-absorbing layer (5) is a foamed material layer with a thickness of 4-6 mm and provided with uniformly distributed air channels.

2. The anti-slip and shock-absorbing soundproof composite floor according to claim 1, characterized in that: The resin layer (1) is arranged above the mute layer (2) and is any one of a water-based paint cured layer, a polyurethane paint cured layer or a UV paint cured layer, and the anti-skid particles uniformly distributed in the cured layer improve the anti-skid performance of the floor surface.

3. The anti-slip and shock-absorbing soundproof composite floor according to claim 1, characterized in that: The mute layer (2) has a thickness of 3 mm.

4. The anti-slip and shock-absorbing soundproof composite floor according to claim 1, characterized in that: The density of the softwood is 450-500 kg / m 3 .

5. The anti-slip and shock-absorbing soundproof composite floor according to claim 1, characterized in that: The plywood of the substrate layer (3) is made of any one or a combination of birch, eucalyptus and poplar.

6. The anti-slip and shock-absorbing soundproof composite floor according to claim 1, characterized in that: The substrate layer (3) has a thickness of 8 mm, and the plywood is made of birch.

7. The anti-slip and shock-absorbing soundproof composite floor according to claim 1, characterized in that: The grooves provided on the surface of the balancing layer (4) are uniformly arranged along the short side of the floor parallelly.

8. The anti-slip, shock-absorbing, and sound-damping composite floor according to claim 7, characterized in that: The length of the groove is the distance between the start of the male groove and the end of the female groove, the width is 2-3 mm, and the depth is 1.5-2 mm.

9. The anti-slip, shock-absorbing, and sound-damping composite floor according to claim 1, characterized in that: The shock-absorbing layer (5) is a foamed polypropylene layer with a foaming ratio of 20-30 times.

10. The anti-slip, shock-absorbing, and sound-damping composite floor according to claim 1, characterized in that: The cross section of the air channel is circular with a diameter of 2-3 mm and a depth of the height of the shock-absorbing layer (5).

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