Novel orthotic insole

Abstract

The utility model discloses a novel orthotic insole, which comprises a sweat absorbing layer, a shaping support layer and a buffer layer which are mutually laminated and fixedly connected, the shaping support layer comprises a first support layer, a carbon fiber embedding piece and a second support layer, the first support layer covers the whole sole, the second support layer is fixedly adhered to the bottom surface of the first support layer, and the carbon fiber embedding piece is fixedly adhered to the bottom surface of the second support layer. The second supporting layer only covers the arch and heel area of the sole, the first supporting layer and the second supporting layer are made of thermoplastic plastics, the carbon fiber embedding piece is of a T-shaped structure, a first embedding groove is formed in the top face of the second supporting layer, the carbon fiber embedding piece is connected with the second supporting layer in an embedded mode through the first embedding groove, and the carbon fiber embedding piece is of a T-shaped structure. The first embedding groove is formed in one side of the arch area. The correcting insole can effectively solve the technical problems that in the prior art, a correcting insole is low in fatigue resistance, poor in durability and not suitable for scenes such as physical test training with the high requirement for the fatigue resistance of the insole.

Description

Technical Field

[0001] The utility model relates to the field of insoles, in particular to a novel corrective insole. Background Art

[0002] Corrective insoles, also known as orthopedic insoles, are a type of functional insoles that can change the ground to adapt to the patient's individual foot shape and gradually change the shape of the patient's foot. Corrective insoles are one of the important auxiliary tools used in the rehabilitation treatment of patients with foot deformities. They usually reduce muscle fatigue in related areas through high-hardness support in specific areas, change the stress state of the foot bones, and thus achieve correction of the plantar morphology. Traditional customized insoles mainly include traditional plaster model making and computer-aided design and production. Among them, the traditional plaster model making process is complicated, time-consuming, and labor-intensive, while the computer-aided design and production method has high requirements on the professionalism of equipment and production personnel. In addition, the cost of making insoles through technologies such as 3D printing is also high.

[0003] In order to solve the above problems, the industry has developed a process for making corrective insoles through secondary thermoplastic shaping. For example, the utility model patent with the authorization announcement number CN214710836U discloses a thermoplastic molded insole, which includes an upper and a sole. A thermoplastic sheet that can be thermoplastic molded is fixedly arranged between the upper and the sole; the thermoplastic sheet includes a bottom plate, and the front two sides of the bottom plate are respectively provided with front leaves in a vertical direction, and the two sides of the middle are respectively provided with middle leaves in a vertical direction. The root of the insole is provided with a foot cup; the bottom plate is provided with a plurality of groups of thermoplastic grooves. The insole can be repeatedly molded by the thermoplastic sheet, and the foot cup can be heated and shaped according to the shape and size of the heel of each user; the realization of early design and later adjustment can greatly improve the production speed of the insole. However, during actual use, researchers found that since the materials of thermoplastic sheets are mostly plastic materials such as polyvinyl chloride, while ensuring their thermoplastic properties, the anti-fatigue properties of the insole are easily affected, so that the corrective insole cannot be used in scenarios such as physical training that require high anti-fatigue strength of the insole, and it also affects the durability of the corrective insole. Summary of the invention

[0004] The main purpose of the utility model is to provide a novel corrective insole, aiming to solve the technical problems of low fatigue resistance and poor durability of the existing corrective insole.

[0005] To achieve the above-mentioned purpose, the utility model proposes a new corrective insole, comprising a sweat-absorbing layer, a shaped support layer and a buffer layer which are stacked and fixedly connected to each other, the shaped support layer comprising a first support layer, a carbon fiber insert and a second support layer, the first support layer covers the entire sole of the foot, the second support layer is adhered and fixed to the bottom surface of the first support layer, the second support layer only covers the arch and heel area of ​​the sole of the foot, the materials of the first support layer and the second support layer are thermoplastic plastics, the carbon fiber insert is a T-shaped structure, the top surface of the second support layer is provided with a first embedding groove, the carbon fiber insert is embedded and connected to the second support layer through the first embedding groove, and the first embedding groove is provided on one side of the arch area.

[0006] Optionally, the carbon fiber embedded component includes a transverse support piece and a longitudinal support piece, positioning holes are arranged at both ends of the transverse support piece, and positioning columns matching the positioning holes are arranged in the first embedding groove.

[0007] Optionally, a second embedding groove corresponding to the first embedding groove is provided on the bottom surface of the first supporting layer, the carbon fiber embedded part protrudes from the second supporting layer, and a portion of the carbon fiber embedded part protruding from the second supporting layer is embedded and connected to the second embedding groove.

[0008] Optionally, a plug-in hole matching the positioning column is provided in the second embedding groove, the positioning column protrudes from the carbon fiber embedded part, and the part of the positioning column protruding from the carbon fiber embedded part is plug-in fixedly connected to the plug-in hole.

[0009] Optionally, a plurality of first breaking grooves are provided in the arch area of ​​the first supporting layer, a plurality of second breaking grooves are provided in the arch area of ​​the second supporting layer, the second breaking grooves are the same as the first breaking grooves, a protrusion is provided at the bottom of the arch area of ​​the first supporting layer, and a recess is provided in the arch area of ​​the second supporting layer, which are connected by covering the protrusion and the recess.

[0010] Optionally, a first air cushion accommodating hole is provided in the heel area of ​​the first supporting layer, and a second air cushion accommodating hole corresponding to the first air cushion accommodating hole is provided in the second supporting layer. The first air cushion accommodating hole and the second air cushion accommodating hole together form an air cushion accommodating cavity, and an air cushion is assembled in the air cushion accommodating cavity.

[0011] Optionally, the material of the first supporting layer is thermoplastic polyurethane, and the material of the second supporting layer is polyvinyl chloride.

[0012] Optionally, the buffer layer is made of Hypoly material.

[0013] Optionally, the sweat-absorbing layer is made of Hypoli material, and the sweat-absorbing layer is also covered with a cotton cloth layer.

[0014] The beneficial effects of the utility model are:

[0015] In the specific production process of the corrective insole of the utility model, the carbon fiber insert of the corresponding model can be embedded with the second support layer, and then the first support layer can be glued to the second support layer by gluing, so that the connection and fixation of the shaping support layer is completed. Then the sweat-absorbing layer is pasted on the top surface of the first support layer, and the buffer layer is pasted on the bottom surface of the second support layer, so that the preliminary production of the main body of the corrective insole is completed. This corrective insole needs to be heated to 70-80℃ during the shaping stage. In this environment, the first support layer and the second support layer made of thermoplastic plastic are softened, and the softened insole is placed in a shaping mold for pressing and cooling. After the insole is cooled to room temperature, it hardens and is shaped. During the pressing process of the shaping mold, the first support layer and the second support layer corresponding to the arch of the foot are arched to form an arch support part. Moreover, the carbon fiber insert forms a highly interlocking state with the second supporting layer during the shaping process of the insole, providing high-strength elasticity for the insole in the arch area of ​​the insole, and improving the fatigue resistance and durability of the corrective insole as a whole, effectively solving the technical problems in the prior art that the corrective insole has low fatigue resistance and poor durability, and cannot be used in scenarios such as physical training that have high requirements on the fatigue resistance of the insole.

[0016] Furthermore, by plugging and matching the positioning column with the positioning hole, the assembly of the carbon fiber insert and the second supporting layer can be completed quickly, and at the same time, the carbon fiber insert can be prevented from degumming and shifting during subsequent use, thereby improving the stability of the corrective insole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a schematic structural diagram of a novel corrective insole according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a novel corrective insole according to an embodiment of the utility model;

[0020] Figure 3 This is a bottom view of the first supporting layer of a novel corrective insole according to an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. The technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] Please refer to Figures 1 to 3 The utility model embodiment proposes a new corrective insole (hereinafter referred to as the corrective insole), including a sweat-absorbing layer 01, a shaped support layer 02 and a buffer layer 06 which are stacked and fixedly connected to each other, the shaped support layer 02 includes a first support layer 021, a carbon fiber insert 03 and a second support layer 04, the first support layer 021 covers the entire sole of the foot, the second support layer 04 is adhered and fixed to the bottom surface of the first support layer 021, and the second support layer 04 only covers the arch and heel area of ​​the sole of the foot, the material of the first support layer 021 and the second support layer 04 is thermoplastic plastic, the carbon fiber insert 03 is a T-shaped structure, and the top surface of the second support layer 04 is provided with a first embedding groove 041, the carbon fiber insert 03 is embedded and connected with the second support layer 04 through the first embedding groove 041, and the first embedding groove 041 is provided on one side of the arch area.

[0025] In the specific production process, the corresponding model of the carbon fiber insert can be embedded with the second support layer, and then the first support layer can be glued to the second support layer by adhesive, thus completing the connection and fixation of the shaping support layer. Then the sweat-absorbing layer is pasted on the top surface of the first support layer, and the buffer layer is pasted on the bottom surface of the second support layer, thus completing the preliminary production of the main body of the corrective insole. This kind of corrective insole needs to be heated to 70-80℃ during the shaping stage. In this environment, the first support layer and the second support layer made of thermoplastic plastic are softened, and the softened insole is placed in the shaping mold for pressing and cooling. After the insole is cooled to room temperature, it hardens and is shaped. During the pressing process of the shaping mold, the first support layer and the second support layer corresponding to the arch of the foot are arched to form an arch support part. Moreover, the carbon fiber insert forms a highly interlocking state with the second supporting layer during the shaping process of the insole, providing high-strength elasticity for the insole in the arch area of ​​the insole, and improving the fatigue resistance and durability of the corrective insole as a whole, effectively solving the technical problems in the prior art that the corrective insole has low fatigue resistance and poor durability, and cannot be used in scenarios such as physical training that have high requirements on the fatigue resistance of the insole.

[0026] In one embodiment, the carbon fiber insert 03 includes a transverse support sheet 031 and a longitudinal support sheet 032, and positioning holes 033 are provided at both ends of the transverse support sheet 032. A positioning column 042 matching the positioning hole 033 is provided in the first embedding groove 041. By plugging and matching the positioning column with the positioning hole, the carbon fiber insert and the second support layer can be quickly assembled, and at the same time, the carbon fiber insert can be prevented from being debonded or shifted during subsequent use, thereby improving the stability of the corrective insole.

[0027] In one embodiment, the bottom surface of the first support layer 021 is provided with a second embedding groove 022 corresponding to the first embedding groove 041, the carbon fiber embedding piece 03 protrudes from the second support layer 03, and the portion of the carbon fiber embedding piece 03 protruding from the second support layer 04 is embedded and connected with the second embedding groove 022. By embedding and connecting the carbon fiber embedding piece with the second support layer and the first support layer respectively, the first support layer and the second support layer can be prevented from being debonded or shifted during subsequent use, thereby improving the stability of the corrective insole.

[0028] In one embodiment, a plug hole 023 matching with the positioning column 042 is provided in the second embedding groove 022, the positioning column 042 protrudes from the carbon fiber embedded part 03, and the part of the positioning column 042 protruding from the carbon fiber embedded part 03 is plugged and fixedly connected with the plug hole 023. Through the plugging and fixing of the positioning column and the plug hole, the connection stability between the first supporting layer and the second supporting layer can be further improved, and the positioning can also be quickly positioned, thereby improving the assembly efficiency of the corrective insole.

[0029] In one embodiment, the arch area of ​​the first supporting layer 021 is provided with a plurality of first breaking grooves 024, the arch area of ​​the second supporting layer 04 is provided with a plurality of second breaking grooves 043, the second breaking grooves 043 are the same as the first breaking grooves 02, the bottom of the arch area of ​​the first supporting layer 021 is provided with a protrusion 025, the arch area of ​​the second supporting layer 04 is provided with a recessed portion 045, and the protrusion 025 is connected with the recessed portion 045 by covering. The covering connection of the protrusion and the recessed portion can form a dislocation connection between the first supporting layer and the second supporting layer, effectively preventing the first supporting layer and the second supporting layer from degumming and displacement during subsequent use, and improving the stability of the corrective insole.

[0030] In one embodiment, the heel region of the first support layer 021 is provided with a first air cushion accommodating hole 026, the second support layer 04 is provided with a second air cushion accommodating hole 046 corresponding to the first air cushion accommodating hole 026, the first air cushion accommodating hole 026 and the second air cushion accommodating hole 046 together form an air cushion accommodating cavity, and the air cushion accommodating cavity is equipped with an air cushion 07. The insole equipped with an air cushion can reduce the impact force of the sole on the heel during use, making the patient more comfortable to use.

[0031] In one embodiment, the material of the first support layer 021 is thermoplastic polyurethane, and the material of the second support layer 04 is polyvinyl chloride. Thermoplastic polyurethane is a thermoplastic TPU elastomer, which not only has excellent high tension, high tensile force, toughness and aging resistance, but also is a mature environmentally friendly material. In this embodiment, the hardness of the first support layer reaches 75 degrees Shore after returning to room temperature, meeting the conventional support requirements. Polyvinyl chloride, commonly known as PVC, has a lower softening point and higher hardness than thermoplastic polyurethane. The hardness of the second support layer reaches 95 degrees Shore after returning to room temperature, meeting the high-strength support requirements of the arch or sole of the foot.

[0032] In one embodiment, the buffer layer 06 is made of Hypoli material. Hypoli is an environmentally friendly high-polymer sponge with the characteristics of breathable moisture absorption, antibacterial and deodorizing, cushioning and shock absorption, environmental protection and light weight, etc. Special functional materials such as mildew and antibacterial agents, spices, activated carbon, cork chips, antistatic materials, etc. can also be added, and have corresponding effects.

[0033] In one embodiment, the sweat-absorbing layer 01 is made of Hypoli material, and the sweat-absorbing layer 01 is also covered with a cotton layer 011. The sweat-absorbing layer covered with the cotton layer can increase the comfort of the insole, and it is also more convenient to print on the surface of the insole, thereby increasing the sensory effect of the product.

[0034] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A novel corrective insole, comprising a sweat-absorbing layer, a shaped support layer and a buffer layer which are laminated and fixedly connected to each other, characterized in that: The shaped support layer includes a first support layer, a carbon fiber embedded part and a second support layer, the first support layer covers the entire sole of the foot, the second support layer is adhered and fixed to the bottom surface of the first support layer, and the second support layer only covers the arch and heel area of ​​the sole of the foot. The materials of the first support layer and the second support layer are thermoplastic plastics, the carbon fiber embedded part is a T-shaped structure, and the top surface of the second support layer is provided with a first embedding groove. The carbon fiber embedded part is embedded and connected with the second support layer through the first embedding groove, and the first embedding groove is provided on one side of the arch area.

2. The novel corrective insole according to claim 1, characterized in that: The carbon fiber embedded part comprises a transverse support piece and a longitudinal support piece. Positioning holes are arranged at both ends of the transverse support piece. Positioning columns matching the positioning holes are arranged in the first embedding groove.

3. The novel corrective insole according to claim 2, characterized in that: The bottom surface of the first supporting layer is provided with a second embedding groove corresponding to the first embedding groove, the carbon fiber embedding piece protrudes from the second supporting layer, and the portion of the carbon fiber embedding piece protruding from the second supporting layer is embedded and connected with the second embedding groove.

4. The novel corrective insole according to claim 3, characterized in that: The second embedding groove is provided with an inserting hole matching the positioning column, the positioning column protrudes from the carbon fiber embedding piece, and the part of the positioning column protruding from the carbon fiber embedding piece is plugged and fixedly connected with the inserting hole.

5. The novel corrective insole according to claim 3, characterized in that: The arch area of ​​the first supporting layer is provided with a plurality of first breaking grooves, the arch area of ​​the second supporting layer is provided with a plurality of second breaking grooves, the second breaking grooves are the same as the first breaking grooves, a protrusion is provided at the bottom of the arch area of ​​the first supporting layer, and a recess is provided at the arch area of ​​the second supporting layer, which are connected by covering the protrusion and the recess.

6. The novel corrective insole according to claim 1, characterized in that: The heel area of ​​the first supporting layer is provided with a first air cushion accommodating hole, and the second supporting layer is provided with a second air cushion accommodating hole corresponding to the first air cushion accommodating hole. The first air cushion accommodating hole and the second air cushion accommodating hole together form an air cushion accommodating cavity, and an air cushion is assembled in the air cushion accommodating cavity.

7. The novel corrective insole according to claim 1, characterized in that: The material of the first supporting layer is thermoplastic polyurethane, and the material of the second supporting layer is polyvinyl chloride.

8. The novel corrective insole according to claim 1, characterized in that: The buffer layer is made of Hypoly material.

9. The novel corrective insole according to claim 1, characterized in that: The sweat-absorbing layer is made of Hypoli material and is also covered with a cotton cloth layer.

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