Cushioning sole with stable structure

Abstract

The utility model discloses a cushioning sole with a stable structure, and relates to the technical field of footwear manufacturing, an air bin is arranged in the sole, the air bin extends along the axial direction to form an internally communicated closed structure, the air bin comprises a cushioning cavity and a narrowing section communicated with the cushioning cavity, and the cross sectional area of the narrowing section is smaller than that of the cushioning cavity. The air bin is arranged in the sole, impact force is absorbed through deformation of the air bin, the shock absorption effect of the shoe is improved, the buffer cavity and the narrowing section are arranged, a fluid channel with pressure attenuated step by step is formed, the impact force can be dispersed more effectively, collapse caused by overlarge local pressure is avoided, the narrowing section serves as a supporting structure, and the shock absorption effect of the shoe is improved. The risk of collapse of the air bin is reduced, and an effective bonding area is increased, so that the air bin has the effects of efficient cushioning and stable supporting, and the wearing comfort and the durability of the sole are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of footwear manufacturing, and specifically relates to a shock-absorbing shoe sole with stable structure. BACKGROUND

[0002] Shoes are indispensable daily necessities in people's daily life, and generally have the effects of air permeability, dryness, warmth, and slip resistance. With the improvement of people's living standards, people's requirements for shoes are increasingly high, and in addition to the protective effect of shoes, more attention is paid to the comfort and appearance fashion of shoes. In order to improve the comfort of shoes, many shoe soles currently have certain shock-absorbing or air exchange functions, and air chambers need to be provided in the soles. The traditional air chamber structure is usually single in form and basically has a bag-like structure, and is generally arranged at a position corresponding to the heel, occupying most of the heel area, resulting in a small effective bonding area of the outsole bonding surface, easy air leakage due to glue opening, and easy collapse of the heel position due to the maximum pressure, affecting the overall stability of the air chamber. Therefore, it is necessary to improve the form of the air chamber structure and optimize the buffering and supporting effect. SUMMARY

[0003] The utility model aims to provide a shock-absorbing shoe sole with stable structure to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a shock-absorbing shoe sole with stable structure, wherein an air chamber is arranged inside the shoe sole, the air chamber extends along the axial direction to form a closed structure with internal communication, and includes a buffer cavity and a narrowed section in communication with the buffer cavity, and the cross-sectional area of the narrowed section is smaller than that of the buffer cavity.

[0005] Further, the buffer cavity includes at least two buffer cavities, and the adjacent two buffer cavities are connected in communication through the narrowed section.

[0006] Further, the air chamber is arranged at a position corresponding to the heel.

[0007] Further, the shoe sole is further provided with an air duct in communication with the air chamber.

[0008] Further, one end of the air duct is connected to the inside of the shoe, and the other end is connected to the outside.

[0009] Further, the air duct includes an air inlet duct and an air outlet duct, the air inlet duct and the air outlet duct are respectively connected to the air chamber, one end of the air inlet duct away from the air chamber forms an air inlet hole in communication with the air inside the shoe, one end of the air outlet duct away from the air chamber forms an air outlet hole in communication with the air outside, the air inlet duct and the air outlet duct are both one-way air inlet channels, the one-way air inlet channel is a Tesla valve structure, the direction from the air inlet hole to the air chamber is a low-resistance direction, and the direction from the air outlet hole to the air chamber is a high-resistance direction.

[0010] Further, the air passage includes an air inlet passage and an air outlet passage, the air inlet passage and the air outlet passage are communicated with the air chamber respectively, one end of the air inlet passage away from the air chamber forms an air inlet hole communicated with the outside air, one end of the air outlet passage away from the air chamber forms an air outlet hole communicated with the air in the shoe, the air inlet passage and the air outlet passage are one-way air inlet channels, the one-way air inlet channel is a Tesla valve structure, the direction from the air inlet hole to the air chamber is a low-resistance direction, and the direction from the air outlet hole to the air chamber is a high-resistance direction.

[0011] Further, the shoe sole includes a midsole and an outsole, the lower surface of the midsole is concave to form a groove, and the outsole is tightly fitted with the midsole to form the air chamber with the groove.

[0012] Further, the upper surface of the shoe sole is concave to form a groove, and a sealing strip is tightly fitted with the shoe sole to form the air chamber with the groove.

[0013] Compared with the prior art, the utility model discloses the inside air chamber of shoe sole, and the impact force is absorbed through the deformation of air chamber, and the shock-absorbing effect of shoe is improved, the fluid channel of pressure step attenuation is formed through the arrangement of buffer cavity and narrowing section, impact force can be dispersed more effectively, the collapse caused by excessive local pressure is avoided, the narrowing section is used as the supporting structure, the risk of air chamber collapse is reduced, the effective bonding area is increased, the air chamber has the effect of high -efficient shock -absorbing, stable support, and the wearing comfort and shoe sole durability are improved. ACCURACY

[0014] Figure 1 It is the assembly structure schematic view of the stable shock-absorbing shoe sole of embodiment one of the utility model,

[0015] Figure 2 It is the air chamber structure schematic view in the stable shock-absorbing shoe sole of the utility model,

[0016] Figure 3 It is the assembly structure schematic view of the stable shock-absorbing shoe sole of embodiment two of the utility model,

[0017] Figure 4 It is the structure schematic view of the stable shock-absorbing shoe sole of embodiment three of the utility model,

[0018] Figure 5 It is the assembly structure schematic view of the stable shock-absorbing shoe sole of embodiment three of the utility model,

[0019] Figure 6 It is another assembly structure schematic view of the stable shock-absorbing shoe sole of embodiment three of the utility model,

[0020] Figure 7This is a schematic diagram of the assembly structure of a stable shock-absorbing shoe sole in a specific embodiment of this utility model.

[0021] Figure 8 This is a schematic diagram of the stable cushioning shoe sole midsole structure in a specific embodiment three of this utility model;

[0022] In the diagram, 100-sole, 101-midsole, 102-outsole, 103-sealing strip, 1-air chamber, 11-buffer cavity, 12-narrowing section, 21-air inlet, 22-air outlet, 23-air inlet, 24-air outlet, 21'-air inlet, 22'-air outlet, 23'-air inlet, 24'-air outlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1:

[0025] like Figures 1-2 As shown, this embodiment provides a structurally stable shock-absorbing sole. The sole 100 has an air chamber 1 inside. The deformation of the air chamber 1 absorbs impact force, improving the shoe's shock absorption effect. The air chamber 1 extends axially to form an internally connected closed structure, including a buffer cavity 11 and a narrowed section 12 communicating with the buffer cavity 11. The cross-sectional area of ​​the narrowed section 12 is smaller than the cross-sectional area of ​​the buffer cavity 11. Figure 2 As shown, a buffer cavity 11 and a narrowing section 12 are provided. The narrowing section 12 is located at the front or rear end of the buffer cavity 11 and is formed by the buffer cavity 11 gradually narrowing along its length. This effectively disperses the impact force and avoids collapse caused by excessive local pressure. Moreover, the narrowing section acts as a support structure, reducing the risk of air chamber collapse and increasing the effective bonding area. Alternatively, two buffer cavities 11 and one narrowing section 12 can be provided. The two buffer cavities 11 are connected by the narrowing section 12, which is formed by the two ends of the buffer cavity 11 gradually concave inward. In this way, the pressure attenuation fluid channel formed by the alternating arrangement of the buffer cavities 11 and the narrowing section 12 is gradually reduced. The narrowing section accelerates the Venturi effect generated by the airflow, thereby forming a pressure difference between the buffer cavities, reducing the impact and avoiding collapse caused by excessive local pressure. The two buffer cavities 11 can be arranged symmetrically or asymmetrically. The narrowing section 12 can be a curved surface or other shapes. The narrowing section 12 acts as a support structure, reducing the risk of air chamber collapse and increasing the effective bonding area.

[0026] In the embodiment, the shoe sole 100 comprises a midsole 101 and an outsole 102, the midsole 101 is made of TPU foamed particles, the TPU foamed particles have small density, good wear resistance, low hardness, good resilience, high tensile strength and good tear resistance, so that the overall quality of the shoe sole is light, the elasticity is good, the cushioning performance is good, and the cushioning performance of the shoe sole is increased, the outsole 102 is made of rubber material and has good wear resistance, the lower surface of the midsole 101 corresponding to the heel position is concave to form a groove, when the outsole 102 is tightly combined with the midsole 101, the groove of the midsole 101 and the outsole 102 form an air chamber, the impact force is absorbed through the deformation of the air chamber 1, and the cushioning effect of the shoe is improved, the air chamber 1 can be arranged at the position corresponding to the heel, the position is the position that bears the maximum impact when a human body walks and runs, and the air chamber 1 arranged at the position can provide better cushioning protection, the air chamber 1 can also extend from the position corresponding to the heel to the arch or the forefoot position, the cushioning effect is increased, and the air chamber 1 can also be arranged at the arch or the forefoot position. Specific embodiment two:

[0028] As shown in Figure 3 the embodiment has the same air chamber 1 as specific embodiment one, and is different from specific embodiment one in that a groove is concave in the upper surface of the shoe sole, and an enclosed strip 103 forms the air chamber 1 with the groove when the enclosed strip 103 is tightly combined with the shoe sole. Specific embodiment three:

[0030] As shown in Figures 4-5 the embodiment has the same air chamber 1 as specific embodiment one or specific embodiment two, and is different from specific embodiment one or specific embodiment two in that a gas channel that is in communication with the air chamber 1 is further arranged in the shoe sole, one end of the gas channel is in communication with the inside of the shoe, and the other end is in communication with the outside, in the embodiment, the gas channel comprises an air inlet channel 21 and an air outlet channel 22, the air inlet channel 21 and the air outlet channel 22 are respectively in communication with the air chamber 1, for example, one end of the air inlet channel 21 away from the air chamber forms an air inlet hole 23 in communication with the air in the inside of the shoe, one end of the air outlet channel 22 away from the air chamber forms an air outlet hole 22 in communication with the air outside, the air inlet channel 21 is arranged at a position corresponding to the forefoot, the air inlet hole 23 penetrates through the upper surface of the shoe sole and is in communication with the inside of the shoe, the air inlet channel 21 is a one-way air inlet channel, the one-way air inlet channel is a Tesla valve structure, and the direction from the air inlet hole 23 to the air chamber 1 is a low-resistance direction; as shown in Figure 4 and Figure 6As shown, the air duct 22 extends from the air chamber to the outer side of the sole. The air outlet 22 is located on the outer side of the sole, either at the rear or the side. When located on the side, the air duct 22 also extends to the side. To enhance visibility, a transparent sealing strip seals the extended air duct 22, and a through hole matching the air outlet 22 is opened on the transparent sealing strip, allowing the user to intuitively feel the exhaust effect. The air duct 22 is also a one-way exhaust channel, which has a Tesla valve structure. The direction from the air outlet 22 to the air chamber 1 is a high-resistance direction. When the wearer steps down while walking, the air chamber 1 is compressed under the influence of the wearer's weight, and the air is released from the air chamber. Due to the one-way nature of the Tesla valve, airflow is difficult to enter the air intake duct 21 through the air intake hole 23. Therefore, the airflow is blown out from the air outlet hole 22 through the air outlet 22 and discharged from the outside of the shoe. Correspondingly, when the foot is lifted, the air chamber 1 returns to its original position. Due to the one-way nature of the Tesla valve, outside air is difficult to enter through the air outlet 22. Therefore, the hot and humid air inside the shoe is drawn into the air chamber 1 through the air intake hole 23 and the air intake duct 21. When the lifted foot touches the ground again, it compresses the air chamber 1 again. The hot and humid air inside the air chamber 1 is blown out from the air outlet hole 22 through the air outlet 22 and discharged from the outside of the shoe. This cycle is repeated to achieve one-way exhaust and expel the hot and humid air inside the shoe.

[0031] like Figure 7 and Figure 8 As shown, the end of the air inlet 21' facing away from the air chamber 1 can also be formed as an air inlet 23' communicating with the outside air, and the end of the air outlet 22' facing away from the air chamber 1 can be formed as an air outlet 24' communicating with the air inside the shoe. The air outlet 22' is arranged at the corresponding foot position, and the air outlet 24' extends through the upper surface of the sole and communicates with the inside of the shoe. Both the air inlet 21' and the air outlet 22' are Tesla valve structures. The direction from the air inlet 23' to the air chamber 1 is a low-resistance direction, and the direction from the air outlet 24' to the air chamber 1 is a high-resistance direction. When the wearer walks... During the process, when the foot is stepped on, the pressure from the sole 100 causes the air chamber 1 to compress. When the foot is lifted, the air chamber 1 returns to its original shape. Due to the one-way nature of the Tesla valve, outside air enters the air chamber 1 through the air inlet 23' and the air inlet channel 21'. When the foot is stepped on again, the pressure from the sole 100 causes the air chamber 1 to compress again. Due to the one-way nature of the Tesla valve, the air in the air chamber 1 enters the shoe through the air outlet 22' and the air outlet 24', injecting fresh air into the shoe and ventilating the inside of the shoe. This achieves one-way air intake, allowing fresh air from outside the shoe to be injected into the shoe in one direction.

[0032] The utility model discloses a gas warehouse is arranged in the inside of sole, and the impact force is absorbed through the deformation of gas warehouse, and the shock attenuation effect of shoe is improved, and through the arrangement of buffer cavity and narrowing section, the fluid passage of pressure step attenuation is formed, can more effectively disperse impact force, avoids the collapse caused by excessive local pressure, and narrowing section is used as the supporting structure, reduces the risk of gas warehouse collapse, also increases the effective bonding area, makes gas warehouse have the effect of high -efficient shock attenuation, stable support, improves the wearing comfort and sole durability.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A structurally stable cushioning shoe sole, characterized by: The shoe sole is internally provided with an air chamber which extends in the axial direction to form an enclosed structure with internal communication, including a buffer cavity and a narrowed section in communication with the buffer cavity, and the cross-sectional area of the narrowed section is smaller than that of the buffer cavity.

2. The structurally stable cushioning sole of claim 1, wherein: The buffer cavity includes at least two, and the adjacent two buffer cavities are communicated by the narrowed section.

3. The structurally stable cushioning sole of claim 1, wherein: The air chamber is arranged at the corresponding heel position.

4. The structurally stable cushioning sole of claim 1, wherein: The shoe sole is further provided with an air duct in communication with the air chamber.

5. The structurally stable cushioning sole of claim 4, wherein: One end of the air duct is communicated to the inside of the shoe, and the other end is communicated with the outside.

6. A structurally stable cushioning sole according to claim 4 or 5, characterized in that: The air duct includes an air inlet duct and an air outlet duct, which are respectively communicated with the air chamber, one end of the air inlet duct away from the air chamber forms an air inlet hole in communication with the air inside the shoe, one end of the air outlet duct away from the air chamber forms an air outlet hole in communication with the outside air, and the air inlet duct and the air outlet duct are both one-way air inlet channels, which are Tesla valve structures, the direction from the air inlet hole to the air chamber is a low resistance direction, and the direction from the air outlet hole to the air chamber is a high resistance direction.

7. A structurally stable cushioning sole according to claim 4 or 5, characterized in that: The air duct includes an air inlet duct and an air outlet duct, which are respectively communicated with the air chamber, one end of the air inlet duct away from the air chamber forms an air inlet hole in communication with the outside air, one end of the air outlet duct away from the air chamber forms an air outlet hole in communication with the air inside the shoe, and the air inlet duct and the air outlet duct are both one-way air inlet channels, which are Tesla valve structures, the direction from the air inlet hole to the air chamber is a low resistance direction, and the direction from the air outlet hole to the air chamber is a high resistance direction.

8. The structurally stable cushioning sole of claim 1, wherein: The shoe sole includes a midsole and an outsole, the lower surface of the midsole is concave to form a groove, and the outsole is tightly fitted with the midsole to form an air chamber between the groove.

9. The structurally stable cushioning sole of claim 1, wherein: The upper surface of the shoe sole is concave to form a groove, and a sealing strip is tightly fitted with the shoe sole to form an air chamber between the groove.

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