An adjustable height arch support sole and shoe

Abstract

The utility model relates to a kind of height-adjustable arch support shoe sole, comprising: insole, elastic support sheet and adjusting device;The insole is opened with installation cavity corresponding the position of arch, the elastic support sheet is arranged inside installation cavity, the cross section of the elastic support sheet is arc, for supporting arch, the adjusting device is arranged inside installation cavity and is connected with the at least one end of elastic support sheet, by adjusting the bending degree of elastic support sheet, the height adjustment of elastic support sheet is realized.The utility model also discloses a kind of shoes.The utility model is through the height-adjustable elastic support sheet and adjusting device, user can adjust support strength according to own demand, significantly improve arch support effect, reduce plantar fascia pressure.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole technology, and in particular to an adjustable height arch support sole and shoe. Background Technology

[0002] The arch of the foot, an arched structure composed of foot bones, ligaments, and muscles, plays a crucial role in exercise. It not only supports the body weight but also absorbs impact through elasticity, reducing pressure on the soles and joints. Foot health problems are increasingly prominent among the elderly, with varying degrees of arch collapse, thus placing higher demands on the flexibility and personalization of athletic shoe soles. Existing athletic shoes mainly suffer from the following problems regarding arch support and cushioning:

[0003] 1. Some athletic shoes have support at the arch of the foot, but it is a fixed arch support structure. It cannot be dynamically adjusted according to different people's arch height and stress conditions, nor can it be adjusted according to the user's degree of arch collapse or comfort needs, resulting in poor support effect.

[0004] 2. Application CN107173912A discloses an adjustable arch support structure. The cavity contains a support component with adjustable height. Adjusting the height of the support component can provide different levels of support for the arch of the foot. However, in this technology, the support component consists of multiple inserts. The inserts do not match the shape of the human arch, which may cause a foreign body sensation when stepping on the foot, affecting comfort.

[0005] 3. Limited cushioning performance: Current shoe sole cushioning designs mostly use single-density materials, which cannot provide differentiated cushioning for the different needs of the forefoot, arch, and heel areas.

[0006] 4. Limitations on mold opening and forming: The existing shoe sole support part is difficult to adjust in height or has limited height adjustment after mold opening and forming, which restricts the flexibility and personalized adaptation of the product. Summary of the Invention

[0007] The purpose of this invention is to provide an adjustable height arch support sole to solve at least one of the above-mentioned problems.

[0008] To achieve the above objectives, this utility model discloses an adjustable-height arch support sole, characterized in that it comprises: a midsole, an elastic support plate, and an adjustment device; the midsole has an installation cavity corresponding to the arch position, the elastic support plate is disposed inside the installation cavity, and the cross-section of the elastic support plate is arc-shaped to support the arch; the adjustment device is disposed inside the installation cavity and connected to at least one end of the elastic support plate, and the height of the elastic support plate is adjusted by adjusting the curvature of the elastic support plate.

[0009] Preferably, the adjusting device includes a rotating adjusting member disposed on one side of the mounting cavity, one end of the elastic support plate is fixed to the rotating adjusting member, and the other end is fixed to the other side of the mounting cavity, or:

[0010] The adjustment device includes two sets of rotating adjustment components respectively disposed on both sides of the mounting cavity, and the two ends of the elastic support plate are respectively fixed on the two sets of rotating adjustment components.

[0011] Preferably, the rotating adjustment component includes a shaft and a stop mechanism. The shaft is rotatably connected to the side wall of the mounting cavity. The elastic support plate is wound around the shaft. One end of the shaft is provided with a lever. Rotating the lever causes the shaft to rotate. The stop mechanism is provided on one side of the shaft for stopping the shaft.

[0012] Preferably, the stopping mechanism includes a stopping disc, a positioning pin, and an elastic element. The stopping disc is coaxially mounted with the shaft. The stopping disc has a plurality of toothed grooves in the circumferential direction. The side wall of the mounting cavity has a mounting hole. The positioning pin is disposed in the mounting hole. One end of the elastic element is fixedly connected to the end of the positioning pin, and the other end of the elastic element is fixedly connected to the mounting hole. The end of the positioning pin near the toothed groove is provided with a locking tooth that mates with the toothed groove. The elastic force of the elastic element is greater than that of the elastic support plate.

[0013] Preferably, the rotary adjustment component includes a shaft, an eccentric shaft, a stop disc, a positioning pin, and an elastic element. Both ends of the shaft are rotatably connected to the sidewall of the mounting cavity. The stop disc is coaxially mounted on the shaft, and the eccentric shaft is eccentrically mounted on the stop disc. The end of the elastic support piece is fixedly connected to the eccentric shaft. The sidewall of the mounting cavity has a mounting hole, and the positioning pin is slidably mounted within the mounting hole. One end of the elastic element is fixedly connected to the positioning pin, and the other end is fixedly connected to the mounting hole. The stop disc has several positioning holes or grooves in its circumferential direction that mate with the positioning pin. One end of the shaft is provided with a lever.

[0014] Preferably, the adjusting device includes at least one shaft and an adjusting groove corresponding to the shaft. The adjusting groove is located at the end of the elastic support piece. The shaft is located in the adjusting groove and connected to the end of the elastic support piece. The shaft moves in the corresponding adjusting groove to change the height of the elastic support piece. One end of the shaft is provided with a lever.

[0015] Preferably, it also includes a support block, which is disposed within the mounting cavity and located at the bottom of the elastic support sheet.

[0016] Preferably, it also includes an outsole, which is fixed below the midsole, and the support block is fixed to the upper surface of the outsole or to the bottom of the elastic support sheet.

[0017] Preferably, the support block includes a first support block, a second support block, and a third support block arranged sequentially along the direction from the forefoot to the hindfoot, and the first support block, the second support block, and the third support block have different hardnesses.

[0018] Preferably, the Shore hardness of the first support block is 50-55C, the Shore hardness of the second support block is 40-45C, and the Shore hardness of the third support block is 35-45C.

[0019] This utility model also discloses a shoe, including the aforementioned adjustable height arch support sole.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model uses an adjustable height elastic support plate and adjustment device, which allows users to adjust the support strength according to their own needs, significantly improving the arch support effect and reducing plantar fascia pressure.

[0022] 2. Through the setting of support blocks, the forefoot, arch and heel cushioning layers with zoned density design can effectively absorb impact and reduce foot fatigue and joint pressure.

[0023] 3. Adaptability: The height-adjustable design meets the arch height and comfort needs of different users, improving the product's adaptability and user experience. Attached Figure Description

[0024] Figure 1 This is a top view of the shoe sole provided in a specific embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional view of the sole edge DD provided in a specific embodiment of the present utility model;

[0026] Figure 3 This is a partially enlarged schematic diagram of point A provided in a specific embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram showing the stop disc rotating at a certain angle in a specific embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram showing the fixed connection between the support block and the shoe sole provided in a specific embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram showing the fixed connection between the support block and the support plate in a specific embodiment of this utility model;

[0030] Figure 7 This is a side view of the sole provided in a specific embodiment of the present utility model;

[0031] Figure 8 This is a cross-sectional view of the sole along EE provided in a specific embodiment of the present utility model;

[0032] Figure 9 This is a structural diagram of the shoe provided in a specific embodiment of the present utility model;

[0033] Figure 10 This is a side view of the sole provided in a specific embodiment of the present utility model;

[0034] Figure 11 This is a side view of the sole provided in a specific embodiment of the present utility model;

[0035] Figure 12 This is a partially enlarged schematic diagram of point B provided in a specific embodiment of this utility model.

[0036] Explanation of symbols for main components:

[0037] 100. Shoe sole; 110. Mounting cavity; 120. Mounting hole; 121. Elastic element; 122. Positioning pin; 123. Clamping tooth; 130. Adjustment groove; 200. Elastic support plate; 300. Shaft body; 301. Lever; 310. Stop plate; 311. Gear groove; 320. Eccentric shaft; 400. Support block; 410. First support block; 420. Second support block; 430. Third support block. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] Example 1

[0040] like Figures 1-9 This utility model provides an adjustable height arch support sole, including: a sole 100, an elastic support plate 200, and an adjustment device; the sole 100 has an installation cavity 110 corresponding to the position of the arch, the installation cavity 110 is located in the midsole, the elastic support plate 200 is disposed inside the installation cavity 110, the cross section of the elastic support plate 200 is arc-shaped, used to support the arch, the arc-shaped cross section simulates the natural curvature of the arch, providing uniform support force, and the elastic support plate 200 is made of TPU material.

[0041] The adjustment device is used to adjust the elasticity of the elastic support plate 200. Users can manually adjust the elasticity according to the wearing scenario, such as: increasing the elasticity during exercise to provide more stable arch support and reduce the risk of sports injuries; and decreasing the elasticity during daily wear to improve the softness of the sole 100 and walking comfort.

[0042] like Figures 5-6The support block 400 is disposed within the mounting cavity 110 and located at the bottom of the elastic support sheet 200. The support block 400 is made of EVA material. The support block 400 includes a first support block 410, a second support block 420, and a third support block 430 arranged sequentially along the direction from the forefoot to the heel.

[0043] The first support block 410 has a Shore hardness of 50-55C. Its relatively high hardness enhances flexibility and allows for rapid energy return. The second support block 420 has a Shore hardness of 40-45C. Its medium density provides support and shock absorption. The third support block 430 has a Shore hardness of 35-45C. Its lower hardness enhances stability and absorbs impact forces upon landing.

[0044] like Figure 2 The elastic adjustment device is set at both ends of the elastic support plate 200. The elastic adjustment device includes a shaft 300 and a stop mechanism. The shaft 300 is rotatably connected to the side wall of the mounting cavity 110. Both ends of the elastic support plate 200 are wound on the shaft 300. A lever 301 is provided at one end of the shaft 300. The stop mechanism is used to prevent the shaft 300 from rotating under the action of the elastic support plate 200. The curvature of the elastic support plate 200 is adjusted by adjusting the length of the elastic support plate 200 wound on the shaft 300.

[0045] like Figure 3 , Figure 4 The stopping mechanism includes a stop disc 310, a positioning pin 122, and an elastic element 121. The stop disc 310 is coaxially mounted with the shaft 300. The stop disc 310 has several toothed grooves 311 in the circumferential direction. The side wall of the mounting cavity 110 has a mounting hole 120. The positioning pin 122 is located in the mounting hole 120. One end of the elastic element 121 is fixedly connected to the end of the positioning pin 122, and the other end of the elastic element 121 is fixedly connected to the mounting hole 120. The end of the positioning pin 122 near the toothed groove 311 has a locking tooth 123 that mates with the toothed groove 311. The elastic force of the elastic element 121 is greater than that of the elastic support plate 200. The elastic element 121 is a spring.

[0046] When the locking tooth 123 engages with the tooth groove 311, rotating the lever 301 requires overcoming the restoring force of the elastic element 121 to allow the locking tooth 123 to slide over the tooth tip of the tooth groove 311. This process produces a distinct "click" sensation and sound, providing operational feedback. This design helps users intuitively perceive the adjustment position, avoiding unsuitable support force due to blind adjustment. The lever 301 can be rotated directly by hand or with a tool.

[0047] like Figure 5The support block 400 is fixedly connected to the bottom of the elastic support piece 200. The support block 400 and the elastic support piece 200 are prefabricated as a single unit. During installation, the entire unit is simply placed into the mounting cavity 110 of the sole 100, reducing the number of parts and assembly steps. This design is suitable for large-scale mass production, especially for the rapid assembly of insoles. Figure 6 In other embodiments, the support block 400 is fixedly connected to the bottom of the mounting cavity 110. The support block 400 is rigidly connected to the bottom of the mounting cavity 110 (e.g., glued), becoming a fixed support point for the elastic support sheet 200. When the arch pressure is too high, the support block 400 can limit the excessive bending of the elastic sheet, preventing excessive arch collapse (e.g., for orthopedic needs of users with flat feet), and avoiding the attenuation of support force due to excessive deformation of the elastic sheet.

[0048] Example 2

[0049] like Figure 11 , 12 The difference between this embodiment and Embodiment 1 is that the rotating adjustment component includes a shaft 300, an eccentric shaft 320, a stop plate 310, a positioning pin 122, and an elastic element 121. The two ends of the shaft 300 are rotatably connected to the side wall of the mounting cavity 110. The stop plate 310 is coaxially mounted on the shaft 300, and the eccentric shaft 320 is eccentrically mounted on the stop plate 310. The end of the elastic support piece 200 is fixedly connected to the eccentric shaft 320. The side wall of the mounting cavity 110 is provided with a mounting hole 120. The positioning pin 122 is slidably mounted in the mounting hole 120. One end of the elastic element 121 is fixedly connected to the positioning pin 122, and the other end is fixedly connected to the mounting hole 120. The stop plate 310 is provided with a plurality of positioning holes or grooves 311 that cooperate with the positioning pin 122 in the circumferential direction. One end of the shaft 300 is provided with a lever 301. An eccentric shaft 320 is coaxially mounted on the shaft body 300, but eccentrically mounted on the stop plate 310. When the shaft body 300 rotates via the lever 301, the stop plate 310 rotates with the shaft body 300. The eccentric shaft 320, eccentrically mounted on the stop plate 310, causes the end of the elastic support plate 200 to shift, thereby adjusting the height of the elastic support plate 200. The positioning pin 122 is pressed against the positioning hole or toothed groove 311 of the stop plate 310 by an elastic element 121 (such as a spring). When the shaft body 300 rotates, the circumference of the stop plate 310 or the toothed groove 311 pushes the positioning pin 122 to compress the elastic element 121; after rotation stops, the elastic element 121 returns to its original position, causing the positioning pin 122 to engage in the positioning hole or between the teeth, achieving a stop lock.

[0050] Example 3

[0051] like Figure 10The difference between this embodiment and Embodiment 1 is that the adjustment device includes at least one shaft 300 and an adjustment groove 130 corresponding to the shaft 300. The adjustment groove 130 is located at the end of the elastic support piece 200. The shaft is located within the adjustment groove 130 and connected to the end of the elastic support piece 200. The shaft 300 moves within the corresponding adjustment groove 130 to change the height of the elastic support piece 200. A lever 301 is provided at one end of the shaft 300. During wear, the adjustment groove 130 can be switched at any time using the lever 301. The current gear can be intuitively determined by observing the position of the lever 301.

[0052] Example 4

[0053] like Figure 9 This utility model also discloses a shoe, including an adjustable-height arch support sole. The adjustable-height arch support sole, by flexibly changing the height and curvature of the support structure, can precisely adapt to the arch shape and exercise needs of different users.

[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable-height arch support sole, characterized in that, include: The midsole (100), the elastic support plate (200), and the adjustment device are provided. The midsole (100) has an installation cavity (110) at the position corresponding to the arch of the foot. The elastic support plate (200) is disposed inside the installation cavity (110). The cross-section of the elastic support plate (200) is arc-shaped and used to support the arch of the foot. The adjustment device is disposed inside the installation cavity (110) and connected to at least one end of the elastic support plate (200). The height of the elastic support plate (200) can be adjusted by adjusting the curvature of the elastic support plate (200).

2. The adjustable height arch support sole according to claim 1, characterized in that: The adjusting device includes a rotating adjusting member disposed on one side of the mounting cavity (110), one end of the elastic support plate (200) is fixed to the rotating adjusting member, and the other end is fixed to the other side of the mounting cavity (110), or: The adjustment device includes two sets of rotating adjustment components respectively disposed on both sides of the mounting cavity (110), and the two ends of the elastic support plate (200) are respectively fixed on the two sets of rotating adjustment components.

3. The adjustable height arch support sole according to claim 2, characterized in that: The rotating adjustment component includes a shaft (300) and a stop mechanism. The shaft (300) is rotatably connected to the side wall of the mounting cavity (110). The elastic support plate (200) is wound around the shaft (300). A lever (301) is provided at one end of the shaft (300). Rotating the lever causes the shaft to rotate. The stop mechanism is provided on one side of the shaft (300) to stop the shaft (300).

4. The adjustable height arch support sole according to claim 3, characterized in that: The stopping mechanism includes a stop disc (310), a positioning pin (122), and an elastic element (121). The stop disc (310) is coaxially mounted with the shaft (300). The stop disc (310) has several toothed grooves (311) in the circumferential direction. The side wall of the mounting cavity (110) is provided with a mounting hole (120). The positioning pin (122) is located in the mounting hole (120). One end of the elastic element (121) is fixedly connected to the end of the positioning pin (122), and the other end of the elastic element (121) is fixedly connected to the mounting hole (120). The end of the positioning pin (122) near the toothed groove (311) is provided with a locking tooth (123) that cooperates with the toothed groove (311). The elastic force of the elastic element (121) is greater than that of the elastic support plate (200).

5. The adjustable height arch support sole according to claim 2, characterized in that: The rotating adjustment component includes a shaft (300), an eccentric shaft (320), a stop plate (310), a positioning pin (122), and an elastic element (121). The two ends of the shaft (300) are rotatably connected to the side wall of the mounting cavity (110). The stop plate (310) is coaxially mounted on the shaft (300). The eccentric shaft (320) is eccentrically mounted on the stop plate (310). The end of the elastic support plate (200) is fixedly connected to the eccentric shaft (320). The mounting cavity (110) has a mounting hole (120) on its side wall. The positioning pin (122) is slidably installed in the mounting hole (120). One end of the elastic element (121) is fixedly connected to the positioning pin (122), and the other end is fixedly connected to the mounting hole (120). The stop plate (310) has several positioning holes or grooves (311) that cooperate with the positioning pin (122) in the circumferential direction. One end of the shaft (300) is provided with a lever (301).

6. The adjustable height arch support sole according to claim 1, characterized in that: The adjustment device includes at least one shaft (300) and an adjustment groove (130) corresponding to the shaft (300). The adjustment groove (130) is located at the end of the elastic support plate (200). The shaft (300) is located in the adjustment groove (130) and connected to the end of the elastic support plate (200). The shaft (300) moves in the corresponding adjustment groove (130) to change the height of the elastic support plate (200). A lever (301) is provided at one end of the shaft (300).

7. An adjustable-height arch support sole according to any one of claims 1 to 6, characterized in that: It also includes a support block (400) disposed within the mounting cavity (110) and located at the bottom of the elastic support sheet (200).

8. The adjustable height arch support sole according to claim 7, characterized in that: It also includes an outsole, which is fixed below the midsole, and the support block is fixed to the upper surface of the outsole or to the bottom of the elastic support piece (200).

9. The adjustable height arch support sole according to claim 7, characterized in that: The support block (400) includes a first support block (410), a second support block (420) and a third support block (430) arranged sequentially along the direction from the forefoot to the hindfoot. The first support block (410), the second support block (420) and the third support block (430) have different hardnesses.

10. The adjustable height arch support sole according to claim 9, characterized in that: The first support block (410) has a Shore hardness of 50-55C, the second support block (420) has a Shore hardness of 40-45C, and the third support block (430) has a Shore hardness of 35-45C.

11. A shoe, characterized in that: Including the adjustable height arch support sole as described in any one of claims 1-10.

Images