CN214258163U

CN214258163U - Warm-keeping insole

Info

Publication number: CN214258163U
Application number: CN202023049164.3U
Authority: CN
Inventors: 付振; 胡宏浩
Original assignee: Shenzhen Shunchengxin Electronic Materials Co Ltd
Current assignee: Shenzhen Shunchengxin Electronic Materials Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-24
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a warm-keeping insole, the insole includes bottom, cold-keeping layer and precoat, cold-keeping layer is the flexible substrate layer of compound aerogel, the flexible substrate layer is the foaming sponge. The utility model discloses cold-proof shoe-pad has the flexible substrate layer of aerogel as cold-proof layer through adopting the complex, and the aerogel is very efficient cold-proof material, and for ordinary cold-proof shoe-pad, its cold-proof effect is better. The heat-insulating layer containing aerogel greatly improves the heat-insulating property of the insole.

Description

Warm-keeping insole

Technical Field

The utility model relates to an insole, more specifically relates to a cold-proof insole.

Background

The feet are the parts farthest away from the heart of the human body, so that blood is not easy to flow, cold-fearing situations are easy to occur, the old and people with poor peripheral blood circulation are prone to have the problem of cold feet in cold weather, and people working in a long-time field cold environment need to strengthen the warm keeping of the feet.

How to improve the warm-keeping effect of the insole is a technical problem to be urgently solved at present.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems, the present application provides a thermal insole.

The application provides a pair of cold-proof shoe-pad, the shoe-pad includes bottom, cold-proof layer and precoat, cold-proof layer is the flexible substrate layer that has the aerogel for compounding, the flexible substrate layer is the foaming sponge.

As an implementation scheme of the warm-keeping insole provided by the utility model, the warm-keeping layer further comprises a liner cloth positioned on the surface of the flexible base material layer.

As an implementation scheme of the warm-keeping insole provided by the utility model, the warm-keeping layer further comprises a TPU thin layer positioned on the surface of the flexible base material layer.

As an implementation scheme of the warm-keeping insole provided by the utility model, the thickness of the TPU film is 0.02-0.05 mm.

As an implementation scheme of the warm-keeping insole provided by the utility model, the foaming sponge is of an open pore structure, and the pore diameter is 10-500 μm.

As an embodiment of the utility model provides a cold-proof shoe-pad, foaming sponge density is 5~40Kg/m thin ethanol planting.

As an implementation scheme of the warm-keeping insole provided by the utility model, the thickness of the foaming sponge is 0.3-5.0 mm.

As an embodiment of the warm-keeping insole provided by the present invention, the aerogel is silica aerogel.

As an embodiment of the warm-keeping insole provided by the utility model, the warm-keeping layer is covered in the middle by the bottom layer and the fabric layer; at the peripheral position of the insole, the bottom layer and the fabric layer are directly attached to form a seal edge of the warm-keeping layer.

As an implementation scheme of the warm-keeping insole provided by the utility model, the warm-keeping layer, the bottom layer and the fabric layer are laminated through the glue layer.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses cold-proof shoe-pad adopts the compound flexible substrate layer that has the aerogel as cold-proof layer, and the aerogel is very efficient cold-proof material, and for ordinary cold-proof shoe-pad, its cold-proof effect is better. The heat preservation performance of the insole is greatly improved.

Through using the flexible substrate layer that foaming sponge regarded as bearing the weight of aerogel, make the aerogel account for than having improved greatly at the quality of flexible substrate layer, and the compliance of foaming sponge, the comfort is good.

Drawings

FIG. 1 is a schematic view of a thermal insole of the present invention;

fig. 2 is a cross-sectional view taken at a-a in fig. 1.

The attached drawings are marked as follows:

bottom layer 10, precoat 20, cold-proof layer 30.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

As shown in figure 1, the utility model provides a warm-keeping insole, which comprises a bottom layer, a warm-keeping layer and a fabric layer.

This application embodiment is different from prior art, and cold-proof layer is the flexible substrate layer that compound has the aerogel.

The flexible base material layer can be various cotton felts and reinforced fiber materials, can also be foamed sponge, and can be other flexible base materials.

Various cotton felts and reinforced fiber materials fix the aerogel materials through gaps among the fibers, and other microcosmic acting forces do not exist between the cotton felts and the reinforced fiber materials, so that a great amount of aerogel dust flies out of the aerogel composite material in the using process; in addition, the viscose fiber used as the reinforced fiber material ensures that the manufactured warm-keeping layer is hard, not soft enough and has poor comfort; the aerogel material is fixed by the reinforcing fiber material through gaps among the fibers, the mass ratio of the aerogel to the reinforcing fibers is about 1:1, and the content of the aerogel is insufficient.

In the warm-keeping layer of the specific embodiment of the present application, the flexible substrate layer is preferably a foamed sponge.

The foaming sponge is adopted as the core base material of the composite aerogel, compared with the core base material adopting a fiber material as the composite aerogel, the foaming sponge is lighter, the foaming sponge is porous and light, the aerogel is combined in the pores of the foaming sponge after the composite aerogel is formed, and compared with the fiber material compounded with the aerogel, the escape of aerogel dust is greatly reduced; and the mass of the aerogel on the flexible base material layer is greatly improved, so that the warm-keeping effect of the warm-keeping layer is better.

The bottom layer is in contact with the ground and needs better wear resistance. The bottom layer can be a foaming layer, such as a polyurethane foaming layer or a foaming silica gel. The bottom layer can also be a rubber bottom. It is understood that the material of the bottom layer is not limited thereto.

The fabric layer is in direct contact with the sole of the foot, and the comfort and the air permeability are required to be met. The fabric layer can be cotton cloth, fiber cloth, synthetic cloth and other fabrics, can also be leather, or multifunctional composite fabrics and the like, and can be specifically customized according to the needs of customers. The fabric layer may be a single-layer structure or a multi-layer structure.

The foaming sponge of this application embodiment is open cell structure, and the aerogel is kept in open cell structure. The foaming sponge is similar to a sponge, but has larger density and smaller pore diameter than a common sponge, and the pore diameter is 10-500 mu m as a preferable scheme. The pore diameter in this range can avoid the aerogel to fall out from the hole.

The density of the foaming sponge is preferably 5-40 Kg/m for thin-wall cultivation. The thickness of the foaming sponge is preferably 0.3-5.0 mm. Furthermore, the thickness of the flexible substrate layer of the foaming sponge is preferably 1-3 mm.

Preferably, the aerogel is a silica aerogel. The silicon dioxide aerogel has special microstructures such as a three-dimensional nanoparticle framework (framework particles are 2-5 nm), a high specific surface area (about 1000 square meters per gram), nanometer-scale holes (about 20nm), a low density (0.003-0.15 g/cm) and the like, and has unique properties in the aspects of thermal, optical, electrical, acoustic and the like. In terms of thermal properties, the nano-porous structure of the silica aerogel can effectively inhibit solid-state heat conduction and gas heat conduction, has excellent heat insulation characteristics, and is a solid material (0.01-0.03W/(m.K) at normal temperature) with the lowest thermal conductivity which is generally accepted at present.

More preferably, the silica aerogel of the present application is preferably SiO²-TiO²And (3) compounding the aerogel.

According to the warm-keeping layer, the mass ratio of the silicon dioxide aerogel in the warm-keeping layer is 70% -90%. The heat-insulating layer has a normal-temperature heat conductivity coefficient of 0.015-0.018W/(m.K).

In order to avoid gradual leakage of aerogel in the insole in the using process, aerogel dust is separated out. As a preferable scheme, the thermal layer further comprises a liner cloth positioned on the surface of the flexible base material layer. The lining cloth is 400-450T (tightness density unit of cloth), and the lining cloth can also be provided with a coating. The liner cloth can further prevent the powder falling of the warm-keeping layer. As another preferable scheme, the thermal insulation layer further comprises a TPU film layer positioned on the surface of the flexible base material layer, and the TPU film has good waterproof and breathable properties. The thickness of the TPU film is preferably 0.02-0.05mm, and the moisture permeability is 3000-10000 g/square meter 24h under the conditions that the temperature is 38 ℃ and the relative humidity is 90 percent. The TPU film can not only ensure the ventilation type of the warm-keeping layer, but also further solve the problem of aerogel powder falling. The TPU film has good air permeability and is more compact, so that the heat-insulating layer is more free from powder falling and softer. The TPU film enables the heat-insulating layer to be waterproof and breathable, and the heat-insulating property is not influenced by the existence of water.

Preferably, the TPU thin film layers can be respectively arranged on the upper surface and the lower surface of the flexible base material layer.

According to the warm-keeping insole, the warm-keeping layer is covered in the middle by the bottom layer and the fabric layer. At the peripheral position of the insole, the bottom layer and the fabric layer are directly jointed through the glue layer to form a seal edge of the warm-keeping layer.

The warm-keeping layer is jointed with the bottom layer and the fabric layer through the glue layer. The adhesive layer is hot melt adhesive or universal adhesive, preferably polyurethane hot melt adhesive.

1. the utility model discloses cold-proof shoe-pad adopts the compound flexible substrate layer that has the aerogel as cold-proof layer, and the aerogel is very efficient cold-proof material, and for ordinary cold-proof shoe-pad, its cold-proof effect is better. The heat preservation performance of the insole is greatly improved.

2. The foaming sponge is adopted as the core base material of the composite aerogel, compared with the core base material which adopts fiber materials and the like as the composite aerogel, the foaming sponge is lighter, the foaming sponge is porous and light, the aerogel is combined in the pores of the foaming sponge after the composite aerogel is formed, and compared with the fiber material which is compounded with the aerogel, the escape of aerogel dust is greatly reduced; and the mass of the aerogel on the flexible base material layer is greatly improved, so that the warm-keeping effect of the warm-keeping layer is better.

It is to be understood that the above-described embodiments are only some of the embodiments of the present application, and not all embodiments of the present application. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. A warm-keeping insole comprises a bottom layer, a warm-keeping layer and a fabric layer, and is characterized in that the warm-keeping layer is a flexible substrate layer compounded with aerogel, the flexible substrate layer is foamed sponge, and the aerogel is combined in pores of the foamed sponge;

the thermal insulation layer further comprises a TPU film layer positioned on the surface of the flexible base material layer.

2. The thermal insole of claim 1, wherein the thermal layer further comprises a gall bladder cloth on the surface of the flexible substrate layer.

3. The thermal insole of claim 1, wherein the TPU film has a thickness of 0.02-0.05 mm.

4. The thermal insole according to claim 1, wherein the foamed sponge has an open pore structure, and the pore diameter is 10-500 μm.

5. The thermal insole according to claim 1, wherein the density of the foamed sponge is 5-40 Kg/m through cultivation.

6. The thermal insole according to claim 1, wherein the thickness of the foaming sponge is 0.3-5.0 mm.

7. The thermal insole of claim 1, wherein said aerogel is silica aerogel.

8. The thermal insole of claim 1, wherein said bottom layer and said top fabric layer sandwich said thermal layer; at the peripheral position of the insole, the bottom layer and the fabric layer are directly attached to form a seal edge of the warm-keeping layer.

9. The thermal insole according to claim 1, wherein the thermal layer is bonded with the bottom layer and the fabric layer through a glue layer.