Heat preservation and sound absorption cotton

Abstract

The utility model discloses heat preservation and sound absorption cotton which comprises a heat preservation layer, a sound absorption cotton layer, a face cover layer and a sound gathering layer, the heat preservation layer is provided with a containing cavity, the face cover layer, the sound gathering layer and the sound absorption cotton layer are all located in the containing cavity, and the sound gathering layer is located between the face cover layer and the sound absorption cotton layer. The sound absorption cotton layer is located between the sound polymerization layer and the cavity bottom of the containing cavity, a first through hole is formed in the surface cover layer, a polymerization cavity is formed in the end, facing the heat preservation layer, of the sound polymerization layer, a receding hole is formed in the other end, facing the sound absorption cotton layer, of the sound polymerization layer, and the receding hole is communicated with the polymerization cavity. After the sound-absorbing cotton is protected, damage to a human body can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of heat preservation sound-absorbing cotton. BACKGROUND

[0002] With the improvement of people's living standards, the rapid development of city, along with it produces various noises, for example, the noise generated by vehicle driving, the noise generated when construction site is under construction, these noises seriously affect people's healthy life, the main purpose of sound-absorbing cotton is to absorb noise, for this, many families arrange sound-absorbing cotton for reducing noise in decoration, but the current sound-absorbing cotton is single, especially in cold weather, cannot provide heat preservation effect.

[0003] With the continuous development of society, people's living standards improve rapidly, the requirement of decorative material is higher and higher, there are many noises in daily life, research shows that noise not only makes people upset, important is to damage people's health, noise can cause a variety of ear discomfort, such as tinnitus, ear pain and hearing loss, according to the measurement, noise exceeding 115 decibels will cause deafness, according to clinical medical statistics, if living in environment above 80 decibels, the number of people with deafness can reach 50%, noise can also damage cardiovascular system.

[0004] For the above problems caused by noise, sound-absorbing cotton is usually used on building or vehicle, noise is absorbed by sound-absorbing cotton, so as to reduce the damage of noise to human body. The sound-absorbing cotton used in early stage is only single sound-absorbing cotton layer, along with the needs of market, people manufacture composite structure of sound-absorbing cotton layer and heat preservation layer, the composite structure has the function of heat preservation in addition to sound absorption.

[0005] The above composite structure increases in function, on the one hand, the thickness of heat preservation sound-absorbing cotton increases, on the other hand, the sound-absorbing cotton layer is in naked state and cannot be effectively protected, and is easy to be oxidized and cause fiber to fall off after long-term use, the fallen fiber is absorbed into human body and causes damage to lung. Therefore, it is necessary to improve the currently used heat preservation sound-absorbing cotton to avoid damage to human body. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of heat preservation sound-absorbing cotton, the utility model can reduce damage to human body after protecting sound-absorbing cotton.

[0007] The technical scheme for solving the above technical problems is as follows:

[0008] The utility model provides a kind of heat preservation sound-absorbing cotton, including heat preservation layer, sound-absorbing cotton layer, heat preservation layer is equipped with accommodating cavity, further including face cover layer, sound aggregation layer, face cover layer, sound aggregation layer and sound-absorbing cotton layer are located in accommodating cavity, sound aggregation layer is between face cover layer and sound-absorbing cotton layer, sound-absorbing cotton layer is between sound aggregation layer and the cavity bottom of accommodating cavity, wherein face cover layer is equipped with first through-hole, the one end of sound aggregation layer towards heat preservation layer is equipped with aggregation cavity, the other end of sound aggregation layer towards sound-absorbing cotton layer is equipped with let hole, let hole and aggregation cavity are through.

[0009] Further, the accommodating cavity is provided with a sunken platform, and an end surface of the face cover layer is provided with a flange, which is arranged on the sunken platform.

[0010] Further, one end of the heat preservation layer is provided with a first curved portion fixed with the heat preservation layer, and the other end of the heat preservation layer is provided with a second curved portion fixed with the heat preservation layer.

[0011] Further, the curved directions of the first curved portion and the second curved portion are opposite.

[0012] Further, the aggregation cavity is in the shape of a horn or a bowl.

[0013] In the utility model, when sound acts on the heat preservation sound-absorbing cotton, the sound passes through the first through-hole, is aggregated in the aggregation cavity, passes through the let hole, and is then conducted to the sound-absorbing cotton layer, so as to be absorbed by the sound-absorbing cotton layer, thereby achieving the purpose of sound absorption. The face cover layer and the sound aggregation layer limit the sound-absorbing cotton layer in the accommodating cavity, so that the oxidation effect on the sound-absorbing cotton layer is reduced, and the face cover layer and the sound aggregation layer have a shielding effect on the sound-absorbing cotton layer, thereby avoiding the scattering of the detached fibers and further avoiding the inhalation of the fibers by the human body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the first heat preservation sound-absorbing cotton.

[0015] Figure 2 It is a sectional view of the first heat preservation sound-absorbing cotton.

[0016] Figure 3 It is a perspective view of the second heat preservation sound-absorbing cotton.

[0017] Figure 4 It is a sectional view of the second heat preservation sound-absorbing cotton.

[0018] Markings in the drawings:

[0019] Heat preservation layer 1, accommodating cavity 1a, sunken platform 1b, assembly groove 1c, sound-absorbing cotton layer 2, face cover layer 3, first through-hole 3a, flange 3b, sound aggregation layer 4, aggregation cavity 4a, let hole 4b, raised portion 4c, first curved portion 5, second curved portion 6. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0025] like Figures 1 to 2 As shown, the utility model is a heat-insulating and sound-absorbing cotton, comprising a heat-insulating layer 1, a sound-absorbing cotton layer 2, a surface cover layer 3, and a sound polymerization layer 4. The various parts and the relationship between them are described below.

[0026] The heat preservation layer 1 is provided with a containing cavity 1a, and the material of the heat preservation layer 1 is preferably melamine sponge. The melamine sponge is a foaming material and a new type of environmentally friendly material, and has good heat insulation, sound absorption, shock absorption, acid and oil resistance, and post-processing properties. The melamine sponge can be attached to various materials. The melamine sponge has a large number of internal openings, and even a large foaming body has a very light weight. This advantage can reduce the load during construction and improve the construction efficiency.

[0027] The surface cover layer 3, the sound aggregation layer 4 and the sound absorption cotton layer 2 are located in the containing cavity 1a. The sound aggregation layer 4 is located between the surface cover layer 3 and the sound absorption cotton layer 2. The sound absorption cotton layer 2 is located between the sound aggregation layer 4 and the bottom of the containing cavity 1a. The sound absorption cotton layer 2 is preferably made of melamine sponge. The porous structure of the polyurethane foaming layer and the small fineness and large specific area of the melt-blown fiber are used to construct a multiple sound propagation energy absorption structure and improve the overall sound absorption effect of the sound absorption cotton.

[0028] The surface cover layer 3 is provided with a first through hole 3a. One end of the sound aggregation layer 4 facing the heat preservation layer 1 is provided with an aggregation cavity 4a. The other end of the sound aggregation layer 4 facing the sound absorption cotton layer 2 is provided with a gap hole 4b. The gap hole 4b is through with the aggregation cavity 4a. The aggregation cavity 4a is in the shape of a horn or a bowl. The surface cover layer 3 and the sound aggregation layer 4 are preferably made of a structure formed by combining a polyurethane foaming layer and a polypropylene melt-blown non-woven fabric.

[0029] In the utility model, when sound acts on the sound absorption cotton, the sound passes through the first through hole 3a, is aggregated through the aggregation cavity 4a, passes through the gap hole 4b and is conducted to the sound absorption cotton layer 2, and is absorbed by the sound absorption cotton layer 2, so that the purpose of sound absorption is achieved. The surface cover layer 3 and the sound aggregation layer 4 limit the sound absorption cotton layer 2 in the containing cavity 1a, so that the oxidation effect on the sound absorption cotton layer 2 is reduced. The surface cover layer 3 and the sound aggregation layer 4 have a shielding effect on the sound absorption cotton layer 2, so that the flying of the detached fibers is avoided, and the fibers are prevented from being inhaled by the human body.

[0030] As shown in Figures 3 to 4 The end surface of the surface cover layer 3 is provided with a flange 3b. The flange 3b is lapped on the sunken platform 1b. The flange 3b is bonded and fixed with the sunken platform 1b, or the flange 3b is sewn and fixed with the sunken platform 1b. This structure can make the surface cover layer 3 and the heat preservation layer 1 have a larger combined area, so that the surface cover layer 3 and the heat preservation layer 1 are more firmly fixed after being fixed.

[0031] One end of the heat preservation layer 1 is provided with a first curved and warped part 5 fixed with the heat preservation layer 1. The other end of the heat preservation layer 1 is provided with a second curved and warped part 6 fixed with the heat preservation layer 1. The curved and warped directions of the first curved and warped part 5 and the second curved and warped part 6 can be the same or opposite. In special places, the first curved and warped part 5 and the second curved and warped part 6 can be installed.

[0032] As Figures 3 to 4 shown, the heat preservation layer 1 is provided with an assembly groove 1c located in the accommodating cavity 1a, and the side edge of the sound aggregation layer 4 is provided with a protruding part 4c. The sound-absorbing cotton layer 2 and the protruding part 4c are embedded into the assembly groove 1c, so that the sound-absorbing cotton layer 2 and the aggregation layer 4 will not move when subjected to axial force.

Claims

1. A heat-insulating sound-absorbing cotton comprising a heat-insulating layer (1) and a sound-absorbing cotton layer (2), characterized in that, The heat preservation layer (1) is provided with a containing cavity (1a), and further comprises a surface cover layer (3) and a sound aggregation layer (4), the surface cover layer (3), the sound aggregation layer (4) and the sound-absorbing cotton layer (2) are located in the containing cavity (1a), the sound aggregation layer (4) is located between the surface cover layer (3) and the sound-absorbing cotton layer (2), and the sound-absorbing cotton layer (2) is located between the sound aggregation layer (4) and the cavity bottom of the containing cavity (1a), wherein the surface cover layer (3) is provided with a first through hole (3a), one end of the sound aggregation layer (4) facing the heat preservation layer (1) is provided with an aggregation cavity (4a), and the other end of the sound aggregation layer (4) facing the sound-absorbing cotton layer (2) is provided with a let-out hole (4b), and the let-out hole (4b) is through with the aggregation cavity (4a).

2. The heat-insulating and sound-absorbing cotton according to claim 1, wherein The containing cavity (1a) is provided with a sunken platform (1b), and the end surface of the surface cover layer (3) is provided with a flange (3b) which is lapped on the sunken platform (1b).

3. The heat-insulating and sound-absorbing cotton according to claim 1, wherein One end of the heat preservation layer (1) is provided with a first curved and warped part (5) fixed with the heat preservation layer (1), and the other end of the heat preservation layer (1) is provided with a second curved and warped part (6) fixed with the heat preservation layer (1).

4. The heat-insulating and sound-absorbing cotton according to claim 1, wherein The aggregation cavity (4a) is in a trumpet shape or a bowl shape.

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