A type of warm insole

Abstract

This application relates to the technical field of insoles, providing a thermal insole that, from bottom to top, comprises a base layer, a heat-conducting layer disposed on the base layer, and a breathable layer disposed on the heat-conducting layer. The base layer has a placement groove communicating with the heat-conducting layer. A heating pack is placed inside the placement groove in the base layer, and the heating pack is detachably connected to the base layer. The heat-conducting layer includes an elastic pad and an aluminum foil film embedded within the elastic pad. The upper surface of the elastic pad has ventilation holes. The elastic pad has a first flow groove and a second flow groove communicating with the ventilation holes at the forefoot and heel areas, respectively. The elastic pad has a flow channel at the arch area, which communicates with the first and second flow grooves and also with the ventilation holes. This application achieves a warming effect by compressing the elastic pad to heat the heating pack, which then flows through the aluminum foil film to various parts of the foot.

Description

Technical Field

[0001] This application relates to the technical field of insoles, and more particularly to a thermal insole. Background Technology

[0002] Insoles are everyday consumer goods. There are many types of insoles with various functions, including massage insoles and odor-resistant insoles. The most common function of insoles is warmth, especially in winter when people prioritize warmth. However, most warm insoles on the market are currently made of cotton felt, which is relatively thick and heavy, offers only average warmth, and is not very comfortable to use, thus requiring further improvement. Utility Model Content

[0003] To address the above problems, this application provides a thermal insole.

[0004] This application provides a thermal insole, which adopts the following technical solution:

[0005] A thermal insole comprises, from bottom to top, a base layer, a heat-conducting layer disposed on the base layer, and a breathable layer disposed on the heat-conducting layer. The base layer has a placement groove communicating with the heat-conducting layer. A heating pack is placed inside the placement groove in the base layer. The heating pack is detachably connected to the base layer. The heat-conducting layer includes an elastic pad and an aluminum foil film embedded in the elastic pad. The upper surface of the elastic pad has ventilation holes. The elastic pad has a first flow groove and a second flow groove communicating with the ventilation holes at the forefoot and heel areas, respectively. The elastic pad has a flow channel at the arch area, which communicates with the first flow groove and the second flow groove, and also communicates with the ventilation holes.

[0006] By employing the above technical solution, the heating pack located in the placement slot, after being heated, will evenly diffuse the heat along with the aluminum foil, reducing the possibility of localized overheating. Due to the elasticity of the elastic pad itself, when applied to everyday shoes, during walking, the foot applies pressure to the forefoot and heel of the insole. When the airflow in the second circulation slot is compressed, the elastic pad is compressed, causing the heated air to flow into the circulation channel and the first circulation slot. Then, it flows through the vents to the arch and forefoot respectively. When the airflow in the first circulation slot is compressed, the heated air in the second circulation slot flows through the vents to the heel. Therefore, by compressing the elastic pad to heat the heating pack, the heat is conducted to various parts of the foot by the aluminum foil, thus achieving a warming effect.

[0007] Preferably, the sidewall of the base layer has an opening communicating with the placement groove, and the base layer is provided with a control element for opening and closing the opening.

[0008] By adopting the above technical solution, openings are made in the side wall of the base layer to connect the placement groove and control components are installed, which makes it easy to disassemble and replace the heating pack in the placement groove, making the replacement operation of the heating pack more convenient, thereby ensuring the continuous and effective heat preservation performance of the insole.

[0009] Preferably, the control element includes a sub-hook and a female hook and loop fastener adhered to the sub-hook and loop fastener, wherein the sub-hook and loop fastener are respectively disposed on two opposing inner surfaces of the base layer located at the opening.

[0010] By adopting the above technical solution, the control component composed of the male and female hook and loop fasteners is set on the two inner surfaces opposite to the opening, which can easily open and close the opening and realize the detachable replacement of the heating pack.

[0011] Preferably, the bottom of the base layer is provided with a plurality of spaced honeycomb-shaped support portions.

[0012] By adopting the above technical solution and setting up several honeycomb-shaped support parts, the buffering effect is enhanced and the ground cold conduction is further isolated.

[0013] Preferably, the aluminum foil film is arranged in a wavy pleat along the length of the elastic pad.

[0014] By adopting the above technical solution, the aluminum foil film is arranged in a wavy pleat along the length of the elastic pad, which can increase the surface area and thus improve the heat exchange efficiency.

[0015] Preferably, it further includes a heat insulation layer disposed on the side of the heat-conducting layer, the heat insulation layer being disposed inclined upward in the direction away from the base layer, and the breathable layer extending to the upper surface of the heat insulation layer.

[0016] By adopting the above technical solution, an upwardly inclined insulating layer is set on the side of the heat-conducting layer and the breathable layer extends to the upper surface of the insulating layer, which can further improve the insulating performance of the insole and reduce heat loss from the feet.

[0017] Preferably, the lower surface of the base layer is provided with anti-slip protrusions.

[0018] By adopting the above technical solution, the slippage of the insole is limited by the anti-slip protrusions.

[0019] Preferably, the base layer is provided with a heat insulation layer within the placement groove.

[0020] By adopting the above technical solution and setting up a heat insulation layer, the heat dissipation of the heating pack to the lower layer is reduced, and more heat is transferred to the upper part of the insole through the heat-conducting layer, thereby improving the warmth retention performance of the insole.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. The heating pack, combined with the aluminum foil film, allows heat from the feet to be quickly and evenly distributed throughout the insole area, preventing localized overheating and effectively improving warmth retention;

[0023] 2. The perforated structure of the base layer, together with the ventilation holes, the first flow groove, the second flow groove, and the flow channel, forms an air insulation layer, which expels moisture, reduces moisture accumulation, and makes the insole more comfortable. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0025] Figure 2 This is an exploded structural diagram of Embodiment 1 of this application;

[0026] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0027] Figure 4 This is a side view of the base layer structure in Embodiment 1 of this application;

[0028] Figure 5 This is a cross-sectional view of the elastic pad in Embodiment 1 of this application;

[0029] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this application;

[0030] Figure 7 This is a schematic diagram of the aluminum foil paper structure in Embodiment 2 of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Base layer; 11. Placement groove; 12. Heating pack; 13. Opening; 14. Control component; 141. Female hook and loop fastener; 142. Female hook and loop fastener; 15. Honeycomb support; 16. Anti-slip protrusions; 2. Heat-conducting layer; 21. Elastic pad; 211. Ventilation hole; 212. First flow groove; 213. Second flow groove; 214. Flow channel; 22. Aluminum foil film; 3. Breathable layer; 4. Insulation layer. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail below.

[0033] This application discloses a thermal insole.

[0034] Example 1:

[0035] A type of warm insole, as shown in the reference Figure 1 From bottom to top, it includes a base layer 1, a heat-conducting layer 2 fixedly connected to the base layer 1, and a breathable layer 3 fixedly connected to the heat-conducting layer 2.

[0036] Reference Figure 1 , Figure 2 In this embodiment, the base layer 1 has a placement groove 11 connected to the heat-conducting layer 2. The base layer 1 can be made of a material with certain elasticity and support, such as open-cell polyurethane foam. This material can not only provide basic support, but also form an air insulation layer by utilizing its open-cell structure to reduce heat loss.

[0037] Reference Figure 2 , Figure 3 The placement slot 11 is used to place the heating pack 12. In this embodiment, the heating pack 12 is detachably connected to the base layer 1. Specifically, the side wall of the base layer 1 has an opening 13 communicating with the placement slot 11. The base layer 1 is provided with a control component 14 for opening and closing the opening 13. The control component 14 specifically includes a sub-hook and loop fastener 141 and a female hook and loop fastener 142 adhered to the sub-hook and loop fastener 141. The sub-hook and loop fastener 141 and the female hook and loop fastener 142 are respectively disposed on two opposite inner surfaces of the base layer 1 located at the opening 13. By tearing or sticking the sub-hook and loop fastener 141 and the female hook and loop fastener 142, the opening 13 can be easily opened or closed, thereby replacing the heating pack 12 in the placement slot 11. Of course, the control component 14 can also be replaced by a zipper or other structure, which can also achieve the function of opening and closing the opening 13.

[0038] Reference Figure 2 , Figure 4 Furthermore, the bottom of the base layer 1 is provided with a plurality of honeycomb-shaped support parts 15, which are spaced apart and are specifically provided on the lower surface of the base layer 1. The honeycomb-shaped support parts 15 can be integrally formed with the base layer 1.

[0039] Furthermore, the lower surface of the base layer 1 is provided with anti-slip protrusions 16. Several anti-slip protrusions 16 are provided, and these protrusions 16 can be small bumps made of rubber. They are regularly or irregularly distributed on the lower surface of the base layer 1, increasing the friction between the insole and the sole, reducing the insole's slippage inside the shoe, and ensuring walking safety. Several anti-slip protrusions 16 and several honeycomb-shaped support parts 15 are arranged alternately.

[0040] Furthermore, the base layer 1 is also provided with a heat insulation layer in the placement groove 11. The heat insulation layer can be a material with good heat insulation properties, such as aerogel felt. It can prevent the heat from the heating pack 12 from dissipating too much to the sole of the shoe, so that more heat is concentrated above the insole and the warmth retention effect is improved.

[0041] Reference Figure 2 , Figure 5The heat-conducting layer 2 includes an elastic pad 21 and an aluminum foil film 22 fixedly connected to the lower surface of the elastic pad 21. The elastic pad 21 can be made of elastic materials such as sponge, providing a comfortable feel. The aluminum foil film 22 has good thermal conductivity, which can quickly and evenly diffuse the heat generated by the heating pack 12 to the entire insole area, reducing the possibility of local overheating. The upper surface of the elastic pad 21 has ventilation holes 211. The elastic pad 21 has a first flow groove 212 and a second flow groove 213 connected to the ventilation holes 211 at the forefoot and heel, respectively. The elastic pad 21 has a flow channel 214 at the arch, which connects to the first flow groove 212 and the second flow groove 213, and also connects to the ventilation holes 211. Through the first flow groove 212, the second flow groove 213, and the flow channel 214, an air circulation channel is formed, allowing moisture inside the insole to escape through these channels, keeping the feet dry.

[0042] Among them, the breathable layer 3 is set on the heat-conducting layer 2. It can be made of materials with good breathability, such as 3D mesh fabric, which can block the direct intrusion of external cold air, maintain the stable temperature of the microenvironment inside the shoe, and ensure the breathability and comfort of the feet.

[0043] The implementation principle of a thermal insole according to this application embodiment is as follows: A heating pack 12 is built into the placement groove 11 of the base layer 1 to provide additional heat to the feet. The aluminum foil film 22 of the heat-conducting layer 2 evenly diffuses the heat, and the breathable layer 3 maintains stable temperature and breathability inside the shoe. The heat insulation layer of the base layer 1 reduces downward heat loss, and the anti-slip protrusions 16 ensure the stability of the insole. The flow structure of the heat-conducting layer 2 and the breathable layer 3 work together to expel moisture and keep the feet dry. Compared with existing cotton felt thermal insoles, this insole not only has better warmth retention but is also lighter, more comfortable, and has significantly improved breathability.

[0044] Example 2:

[0045] Reference Figure 6 The difference from Embodiment 1 is that this embodiment also includes a heat insulation layer 4 disposed on the side of the heat-conducting layer 2. The heat insulation layer 4 is disposed inclined upward in the direction away from the base layer 1, and the breathable layer 3 extends to the upper surface of the heat insulation layer 4.

[0046] Reference Figure 7 Furthermore, to improve the heat conduction effect, in this embodiment, the aluminum foil film 22 is arranged in a wavy pleat along the length direction of the elastic pad 21.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A thermal insole, characterized by: From bottom to top, the structure includes a base layer (1), a heat-conducting layer (2) disposed on the base layer (1), and a breathable layer (3) disposed on the heat-conducting layer (2). The base layer (1) has a placement groove (11) communicating with the heat-conducting layer (2). A heating pack (12) is placed inside the placement groove (11) of the base layer (1). The heating pack (12) is detachably connected to the base layer (1). The heat-conducting layer (2) includes an elastic pad (21) and an aluminum foil film (22) embedded in the elastic pad (21). 2) The upper surface of the elastic pad (21) is provided with a ventilation hole (211). The elastic pad (21) is provided with a first flow groove (212) and a second flow groove (213) connected to the ventilation hole (211) at the forefoot and heel respectively. The elastic pad (21) is provided with a flow channel (214) at the arch of the foot. The flow channel (214) is connected to the first flow groove (212) and the second flow groove (213) and is connected to the ventilation hole (211).

2. A thermal sock according to claim 1, characterized in that: The base layer (1) has an opening (13) on its side wall that communicates with the placement groove (11), and the base layer (1) is provided with a control element (14) for opening and closing the opening (13).

3. A thermal sock according to claim 2, wherein: The control element (14) includes a sub-hook and loop fastener (141) and a female hook and loop fastener (142) adhered to the sub-hook and loop fastener (141). The sub-hook and loop fastener (141) and the female hook and loop fastener (142) are respectively disposed on the two opposite inner surfaces of the base layer (1) located at the opening (13).

4. The thermal sock of claim 1, wherein: The bottom of the base layer (1) is provided with several spaced honeycomb-shaped support parts (15).

5. The thermal sock of claim 1, wherein: The aluminum foil film (22) is arranged in a wavy pleat along the length of the elastic pad (21).

6. The thermal sock of claim 1, wherein: It also includes a heat insulation layer (4) disposed on the side of the heat-conducting layer (2), the heat insulation layer (4) is disposed inclined upward in the direction away from the base layer (1), and the breathable layer (3) extends to the upper surface of the heat insulation layer (4).

7. The thermal sock of claim 1, wherein: The lower surface of the base layer (1) is provided with anti-slip protrusions (16).

8. A thermal insole according to claim 1, characterized in that: The base layer (1) is provided with a heat insulation layer inside the placement groove (11).

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