A breathable sole

Abstract

A breathable shoe sole solves the problems of poor ventilation, complex pore layouts prone to clogging and breakage, high manufacturing costs, and poor comfort and durability in the prior art. The sole comprises a breathable midsole with a breathable upper sole disposed on its upper side. The sole is characterized by: a wear-resistant lower sole disposed on its lower side; a transition air chamber disposed within the forefoot end of the midsole, with a front sole air inlet disposed above the transition air chamber; flat one-way valves disposed on either side of the transition air chamber, the ends of which are connected to the forefoot side exhaust holes; and a columnar one-way valve disposed within the heel end of the midsole, the ends of which are connected to the heel air inlet and heel side exhaust holes, respectively. The sole has a reasonable design and compact structure, enabling smooth one-way flow of fluid inside and outside the shoe, quickly draining moisture and water from the sole, improving the damp, hot, and stuffy environment inside the shoe, and enhancing foot comfort. The sole is flexible and adaptable, and highly practical.

Description

Technical Field

[0001] The present invention belongs to the technical field of shoe manufacturing, and specifically relates to a breathable sole that can achieve one-way smooth flow of fluid inside and outside the shoe, can quickly drain moisture and water from the sole, effectively improve the humid, hot and stuffy environment inside the shoe, and enhance the comfort of the sole of the foot. It has flexible adaptability and strong practicality. Background Art

[0002] The drainage and ventilation performance of shoes is one of the important indicators for measuring their quality. Currently, the technical methods for achieving this performance indicator mainly rely on the scheme of opening holes in the foam cavity of the sole or the upper part of the shoe cavity. Although this traditional method is simple and easy to manufacture, the opening holes will inevitably affect the comfort of the feet, and the overall ventilation effect is also unsatisfactory, and the actual use effect is poor. In addition, some existing methods of designing complex exhaust channels and ventilation switches in the soles have improved the air intake and exhaust performance of the shoes to a certain extent. However, the complicated arrangement of the pipe holes and the switch device not only increase the manufacturing cost of the shoes, but also the excessive and overlong ventilation pipe holes are very easy to clog and damage, and seriously affect the elastic strength control and durability of the shoes. Therefore, it is necessary to improve the breathable soles of the existing technology. Summary of the Invention

[0003] The present invention is aimed at the above problems and provides a breathable sole that can realize one-way smooth flow of fluid inside and outside the shoe, can quickly drain moisture and water from the sole, effectively improve the hot and humid environment inside the shoe, enhance the comfort of the sole of the foot, and has flexible adaptability and strong practicality.

[0004] The technical solution adopted by the present invention is as follows: the breathable sole includes a breathable midsole, which is characterized in that: a breathable upper sole with good permeability is provided on the upper side of the breathable midsole, and a wear-resistant lower sole is provided on the lower side of the breathable midsole; the breathable midsole is composed of a midsole body, a transition airbag cavity is provided inside the forefoot end of the midsole body, a plurality of groups of front sole air inlet holes are provided on the upper side of the transition airbag cavity, and the entrances of the front sole air inlet holes are located on the upper side of the forefoot end of the midsole body; the left and right sides of the transition airbag cavity are respectively Several groups of flat one-way valves are symmetrically arranged, the inner ends of the flat one-way valves are connected to the transition air bag cavity through the flat valve connecting port, and the outer ends of the flat one-way valves are respectively connected to the side of the forefoot end and the corresponding forefoot side exhaust holes; several groups of columnar one-way valves are also arranged inside the heel end of the midsole body, the upper ends of the columnar one-way valves are respectively connected to the heel air inlet holes on the upper side of the heel end of the midsole body, and the lower ends of the columnar one-way valves are respectively connected to the side of the heel end and the corresponding heel side exhaust holes.

[0005] The flat one-way valve is composed of an elastic flat valve body, a flat valve hollow inner cavity is provided inside the elastic flat valve body, a transition cavity connecting portion is provided at one end of the elastic flat valve body, and a forefoot side hole connecting portion is provided at the other end of the elastic flat valve body; the elastic flat valve body is connected to the side of the transition airbag cavity through the transition cavity connecting portion, and the flat valve hollow inner cavity of the elastic flat valve body is connected to the transition airbag cavity; the forefoot side hole connecting portion of the elastic flat valve body is connected to the forefoot side exhaust hole on the side of the forefoot end of the shoe midsole body. The transition air bag cavity is connected to the shoe cavity through multiple rows of front air inlet holes on its upper part and maintains the same air pressure, so that when the forefoot end of the midsole body of the shoe is subjected to pedaling pressure from the sole of the foot, the pressure in the hollow inner cavity of the flat valve of the elastic flat valve body increases, and the gas in the hollow inner cavity of the flat valve is discharged from the forefoot side exhaust holes through the outer fish mouth cavity. As the foot is lifted, the pressure in the hollow inner cavity of the flat valve of the elastic flat valve body disappears, and it returns to its original state according to its own elastic memory. The internal space of the hollow inner cavity of the flat valve increases and the pressure decreases, thereby sucking the gas that enters the transition air bag cavity through the front air inlet holes of the sole of the foot into the hollow inner cavity of the flat valve. When stepping again, the last cycle is repeated, and the gas in the cavity is discharged from the forefoot side exhaust holes again.

[0006] The elastic flat valve body has an inner fish-mouth elastic cavity disposed within the hollow inner cavity of the flat valve, near one end of the transition cavity connection, and an outer fish-mouth elastic cavity disposed within the hollow inner cavity of the flat valve, near the forefoot side hole connection, with the outer fish-mouth elastic cavity and the inner fish-mouth elastic cavity facing the same direction. When the hollow inner cavity of the flat valve is subjected to pressure from the sole of the foot, the outer fish-mouth elastic cavity disposed at the forefoot side hole connection of the flat one-way valve allows gas within the hollow inner cavity of the flat valve to be discharged through the forefoot side vent. Furthermore, when the sole of the foot is lifted, gas within the transition airbag cavity is replenished into the hollow inner cavity of the flat valve of the flat one-way valve through the inner fish-mouth elastic cavity disposed at the transition cavity connection of the flat one-way valve, thereby forming a one-way flow of ventilation air.

[0007] The inner and outer fish-mouth elastic cavities have identical structures, both consisting of a fish-mouth-shaped support body. The open end of the fish-mouth-shaped support body faces the transition chamber connection portion, while the closed end of the fish-mouth-shaped support body is provided with a pressure-sensitive film flat opening, which is arranged toward the forefoot side hole connection portion. This allows pressurized airflow to flow through the open end of the fish-mouth-shaped support body, opening the pressure-sensitive film flat opening at the closed end of the fish-mouth-shaped support body, thereby discharging the air. Simultaneously, when the external force is removed and the fish-mouth-shaped elastic cavity returns to its original shape due to its own elasticity, the pressure-sensitive film flat opening also closes accordingly.

[0008] The cylindrical one-way valve comprises a vertically arranged elastic cylindrical valve body, the interior of which is provided with a cylindrical hollow cavity. A sole heel air hole connection portion is provided at the upper end of the elastic cylindrical valve body, and a heel side hole connection portion is provided at the lower end of the elastic cylindrical valve body. The elastic cylindrical valve body is connected to the sole heel air inlet on the upper side of the midsole body via the sole heel air hole connection portion, while the heel side hole connection portion of the elastic cylindrical valve body is connected to the heel side vent hole on the side of the rear heel end of the midsole body via a transverse air hole passage. When the rear heel end of the midsole body is subjected to heel pressure, the cylindrical hollow cavity of the elastic cylindrical valve body of the cylindrical one-way valve is used to discharge gas that enters the cylindrical hollow cavity through the sole heel air inlet through the sole heel air hole through the heel side vent hole.

[0009] The elastic cylindrical valve body has an upper conical elastic cavity disposed within its cylindrical hollow cavity, near one end of the sole heel air hole connection portion, and a lower conical elastic cavity disposed within its cylindrical hollow cavity, near one end of the sole heel side hole connection portion, with the lower conical elastic cavity and the upper conical elastic cavity facing the same direction. When the cylindrical one-way valve is subjected to heel pressure, gas within the cylindrical hollow cavity of the elastic cylindrical valve body is discharged through the air hole channel and out of the heel side vent hole via the lower conical elastic cavity disposed at the sole heel side hole connection portion of the elastic cylindrical valve body. Furthermore, when the heel is lifted, gas within the shoe is replenished into the cylindrical hollow cavity of the cylindrical one-way valve via the sole heel air inlet hole via the upper conical elastic cavity disposed at the sole heel air hole connection portion of the elastic cylindrical valve body, thereby forming a one-way flow of ventilation air.

[0010] The upper and lower conical elastic cavities have identical structures, each consisting of a conical support body. The open end of the conical support body faces the heel-side air hole connection. A pressure-sensitive film riser is provided at the closed end of the conical support body, facing the heel-side hole connection. This allows pressurized airflow to flow through the open end of the conical support body, opening the pressure-sensitive film riser at the closed end of the conical support body, thereby discharging air. Furthermore, when the external force is removed and the conical elastic cavity returns to its original shape due to its own elasticity, the pressure-sensitive film riser also closes, preventing reverse flow of air.

[0011] The flat one-way valves on both sides of the transition airbag cavity inside the forefoot end of the midsole body adopt a structure of three valve bodies arranged symmetrically on the left and right sides to fully adapt to the force application range of the forefoot and make the force applied to the forefoot end area of ​​the midsole body more uniform.

[0012] The cylindrical one-way valve inside the heel end of the midsole body adopts a structure in which two valve bodies are symmetrically arranged on the left and right sides to fully adapt to the force application range of the heel and make the force applied to the heel end area of ​​the midsole body more uniform.

[0013] The outer ports of the forefoot side vent holes on both sides of the forefoot end of the midsole body and the heel side vent holes on both sides of the heel end are respectively provided with anti-blocking filters to prevent debris from clogging the exhaust channels and ensure the use effect of the breathable midsole.

[0014] The beneficial effects of the present invention are as follows: since the present invention adopts a breathable shoe midsole with a good permeability upper sole provided on the upper side, and a wear-resistant shoe lower sole provided on the lower side of the breathable shoe midsole; a transition air bag cavity is provided inside the forefoot end of the midsole body of the breathable shoe midsole, and a plurality of groups of front sole air inlet holes are provided on the upper side of the transition air bag cavity; the entrance of the front sole air inlet hole is located on the upper side of the forefoot end of the midsole body; a plurality of groups of flat one-way valves are symmetrically provided on the left and right sides of the transition air bag cavity, and the outer ends of the flat one-way valves are respectively connected to the forefoot side exhaust holes provided on the side of the forefoot end; a plurality of groups of The cylindrical one-way valve has an upper end connected to an air inlet on the heel of the sole of the shoe, and a lower end connected to an exhaust hole on the side of the heel. The structure is reasonable in design and compact in structure. It fully utilizes the superior elasticity, flexibility, plasticity and memory properties of modern rubber or plastic materials. Under the action of the cyclic pressure generated by the user's normal walking, it realizes a one-way smooth flow of fluid inside and outside the shoe, can quickly drain moisture and water from the sole, effectively improve the damp, hot and stuffy environment inside the shoe, and enhance the comfort of the sole. It has flexible adaptability and strong practicality. At the same time, the breathable sole has many advantages such as simple production, flexible design and application, no need for complex structural coordination inside the shoe, compact and durable components, significant permeability, and low production cost. It can be widely used in various footwear such as moisture-proof, drainage, and sports footwear, and has a strong use effect in solving problems such as stuffiness, humidity, and water accumulation inside the shoe. It has significant market value and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the breathable shoe midsole of the present invention.

[0016] Figure 2 yes Figure 1 A structural diagram showing the internal components.

[0017] Figure 3 yes Figure 2 A schematic diagram of the arrangement structure of the internal components in.

[0018] Figure 4 yes Figure 3 A structural diagram of a flat one-way valve in FIG.

[0019] Figure 5 yes Figure 4 A cross-sectional view of the internal structure.

[0020] Figure 6 yes Figure 5 Schematic diagram of a usage state in which the elastic flat valve body is under pressure and the flat mouth of the pressure-sensitive film in the outer fish-mouth-shaped elastic cavity is opened (exhaust is released outward).

[0021] Figure 7 yes Figure 6 Schematic diagram of a usage state in which the elastic flat valve body relies on its own elasticity to restore its original shape and the flat mouth of the pressure-sensitive film in the inner fish-mouth-shaped elastic cavity opens (inwardly sucking air).

[0022] Figure 8 yes Figure 1 A schematic diagram of a transverse section of the forefoot end portion.

[0023] Figure 9 yes Figure 8 A structural diagram of the cross section in .

[0024] Figure 10 yes Figure 3 A structural diagram of a cylindrical one-way valve in FIG.

[0025] Figure 11 yes Figure 10 A cross-sectional view of the internal structure.

[0026] Figure 12 yes Figure 11 Schematic diagram of a usage state in which the elastic cylindrical valve body is under pressure and the pressure-sensitive film riser of the lower conical elastic cavity is open (exhaust is released outward).

[0027] Figure 13 yes Figure 12 Schematic diagram of a usage state in which the elastic cylindrical valve body relies on its own elasticity to restore its original shape and the pressure-sensitive film riser in the upper conical elastic cavity is opened (inwardly sucking air).

[0028] Figure 14 yes Figure 1 A schematic diagram of a transverse section of the heel end in FIG.

[0029] Figure 15 yes Figure 14 A structural diagram of the cross section in .

[0030] Figure 16 It is a structural schematic diagram of the present invention.

[0031] Explanation of the numbers in the figure: 1 midsole body, 2 forefoot end, 3 heel end, 4 front sole air intake hole, 5 forefoot side exhaust hole, 6 heel air intake hole, 7 heel side exhaust hole, 8 transition airbag cavity, 9 flat one-way valve, 10 columnar one-way valve, 11 forefoot shoe cavity air hole connection port, 12 flat valve connection port, 13 elastic flat valve body, 14 transition cavity connection portion, 15 forefoot side hole connection portion, 16 flat valve hollow cavity, 17 inner fish Mouth-shaped elastic cavity, 18 outer fish-mouth-shaped elastic cavity, 19 fish-mouth-shaped support body, 20 pressure-sensitive film flat mouth, 21 anti-blocking filter, 22 elastic columnar valve body, 23 heel air hole connection part, 24 heel side hole connection part, 25 columnar hollow inner cavity, 26 upper conical elastic cavity, 27 lower conical elastic cavity, 28 cone-shaped support body, 29 pressure-sensitive film riser, 30 breathable shoe midsole, 31 wear-resistant shoe lower sole, 32 breathable shoe upper sole, 33 shoe upper. DETAILED DESCRIPTION

[0032] according to Figures 1 to 16 The specific structure of the present invention will be described in detail. The breathable sole includes a breathable midsole 30. The upper side of the breathable midsole 30 is provided with a highly permeable breathable upper sole 32, which covers the front sole air intake holes 4 and the heel air intake holes 6. The lower side of the breathable midsole 30 is provided with a wear-resistant lower sole 31 for contact with the ground. The breathable midsole 30 is composed of a midsole body 1 and surrounding additives. The filling portion of the midsole body 1 can be made of a soft, elastic material with a large compression space (for example, secondary foam PHYLON, PU, ​​etc.). A transition air chamber 8 is provided within the forefoot end 2 of the midsole body 1. Several groups of front sole air intake holes 4 are arranged above the transition air chamber 8. It is understood that, depending on specific usage needs, the front sole air intake holes 4 can be arranged in three groups of nine holes, two groups of six holes, or one group of three holes to maintain the same air pressure in the transition air chamber 8 and the shoe chamber. The front air inlet hole 4 is connected to the forefoot shoe cavity air hole connection port 11 on the upper side wall of the transition airbag cavity 8; and the upper end entrance of the front air inlet hole 4 is located on the upper side of the forefoot end 2 of the midsole body 1.

[0033] Several sets of horizontally arranged flat one-way valves 9 are symmetrically disposed on the left and right sides of the transition airbag cavity 8 within the forefoot end 2 of the midsole body 1. The inner ends of the flat one-way valves 9 are connected to the transition airbag cavity 8 via a flat valve connection port 12. The flat one-way valves 9 on either side of the transition airbag cavity 8 can be configured as three sets of valve bodies arranged symmetrically on the left and right sides to fully accommodate the force applied to the forefoot and ensure more uniform force is applied to the forefoot end 2 of the midsole body 1. The flat one-way valves 9 are composed of an elastic flat valve body 13, which has a flat valve hollow cavity 16 disposed therein. A transition cavity connection portion 14 is disposed at one end of the elastic flat valve body 13, and a forefoot side hole connection portion 15 is disposed at the other end of the elastic flat valve body 13. The laterally arranged elastic flat valve body 13 is connected to the side of the transition airbag chamber 8 via a transition chamber connection portion 14. The flat valve hollow interior 16 of the elastic flat valve body 13 communicates with the transition airbag chamber 8 via the inner fish-mouth elastic chamber. The forefoot side hole connection portion 15 of the elastic flat valve body 13 is connected to the forefoot side vent 5 on the side of the forefoot end 2 of the midsole body 1. Consequently, when the forefoot end 2 of the midsole body 1 is subjected to pressure from the sole of the foot, air within the cavity is discharged through the flat valve hollow interior 16 of the elastic flat valve body 13 of the flat one-way valve 9 and then through the outer fish-mouth elastic chamber 18 of the elastic flat valve body 13. As the sole of the foot is lifted, the pressure in the flat valve hollow cavity 16 of the elastic flat valve body 13 disappears. At the moment when the internal cavity space expands and the pressure decreases, the gas that enters the transition airbag cavity 8 through the air inlet hole 4 at the front of the sole is sucked into the flat valve hollow cavity 16 through the inner fish mouth elastic cavity 17. When the foot steps again, the cycle of exhausting the gas from the exhaust hole 5 on the side of the forefoot is repeated.

[0034] The elastic flat valve body 13 is made of high-quality rubber or plastic materials with good elasticity, strong shrinkability and good memory recovery. The outer wall support body of the elastic flat valve body is a flat three-dimensional shape. Two fish-mouth-shaped elastic cavities are continuously arranged in the same direction from the open end to the closed end inside, and a flat valve hollow inner cavity is arranged in the middle, which fully utilizes the one-way permeability of the fish-mouth-shaped elastic cavity fluid. When the outer wall of the elastic flat valve body support body is subjected to pressure, the fluid pressure in the hollow inner cavity of the flat valve increases, the outer wall of the fish-mouth-shaped elastic cavity arranged at the front is pressurized and closed, and the inner wall of the fish-mouth-shaped elastic cavity arranged at the rear is pressurized and opened, and the fluid flows out in the direction of pressure; after the pressure disappears, the elastic flat valve support body returns to its original shape according to elastic memory, the space of the hollow inner cavity of the flat valve increases and the pressure decreases, the open end of the fish-mouth-shaped elastic cavity arranged at the rear is closed, and the open end of the fish-mouth-shaped elastic cavity arranged at the front is opened, and the transition cavity fluid is sucked in. The opening is closed after the pressure is balanced, and when the pressure is received again, the discharge action is repeated.

[0035] An inner fish-mouth-shaped elastic chamber 17 is disposed within the hollow flat valve cavity 16 of the elastic flat valve body 13, near one end of the transition chamber connection 14. An outer fish-mouth-shaped elastic chamber 18 is disposed within the hollow flat valve cavity 16, near the other end of the forefoot side hole connection 15. The outer fish-mouth-shaped elastic chamber 18 and the inner fish-mouth-shaped elastic chamber 17 are arranged in the same direction. Furthermore, the inner fish-mouth-shaped elastic chamber 17 and the outer fish-mouth-shaped elastic chamber 18 have the same structure, both consisting of a fish-mouth-shaped support body 19 with one end larger and the other smaller. The open end of the fish-mouth-shaped support body 19 faces the transition chamber connection 14, while the closed end of the fish-mouth-shaped support body 19 is provided with a pressure-sensitive film flat opening 20, which is arranged toward the forefoot side hole connection 15. Thus, when the transition airbag cavity 8 and the flat one-way valve 9 are subjected to pressure from the sole of the foot, since the upper part of the transition airbag cavity 8 has sufficient forefoot shoe chamber air hole connecting ports 11 to maintain the same pressure as the shoe chamber air pressure, most of the pressure is borne by the flat one-way valve 9, and the pressurized airflow flows out through the open end of the fish-mouth-shaped support body 19 of the outer fish-mouth-shaped elastic cavity 18, and opens the pressure-sensitive film flat port 20 at the closed end of the fish-mouth-shaped support body 19 of the outer fish-mouth-shaped elastic cavity 18, thereby allowing the gas in the flat valve hollow inner cavity 16 of the flat one-way valve 9 to be discharged from the forefoot side exhaust hole 5. Moreover, when the sole of the foot is lifted (the external force is removed), the outer fish-mouth-shaped elastic cavity 18 returns to its original shape by its own elasticity, and the flat opening 20 of the pressure-sensitive film is also closed accordingly; at the same time, since the cavity of the flat valve hollow inner cavity 16 of the flat one-way valve 9 returns to its original size (from small to large), the pressure in the cavity decreases, and the gas in the transition airbag cavity 8 flows into the open end of the fish-mouth-shaped support body 19 of the inner fish-mouth-shaped elastic cavity 17 of the flat one-way valve 9 under the action of atmospheric pressure, and opens the flat opening 20 of the pressure-sensitive film at the closed end of the fish-mouth-shaped support body 19 of the inner fish-mouth-shaped elastic cavity 17, so that the gas in the transition airbag cavity 8 is replenished into the flat valve hollow inner cavity 16 of the flat one-way valve 9; and the gas inside the shoe also enters the transition airbag cavity 8 through the air inlet 4 at the front of the sole, forming a one-way flow of ventilation airflow.

[0036] The fish-mouth-shaped elastic cavity is made of high-quality rubber or plastic materials with good elasticity, strong shrinkability and good memory recovery. The elastic cavity support body is in the shape of a flat fish mouth, gradually flattening from the open end to the closed end until it is completely closed. A pressure-sensitive film with good elasticity, fatigue resistance and good memory recovery is connected to the closed end. When the inner wall of the fish-mouth-shaped elastic cavity support body is subjected to fluid pressure, the pressure-sensitive film at the closed end opens, and the fluid flows out in the direction of pressure; after the pressure disappears or when the outer wall of the fish-mouth-shaped elastic cavity support body receives pressure, the pressure-sensitive film closes to prevent the fluid from moving in the opposite direction.

[0037] The interior of the heel end 3 of the midsole body 1 is also provided with several sets of vertically arranged cylindrical one-way valves 10. These cylindrical one-way valves 10 can be constructed with two sets of valve bodies symmetrically arranged on the left and right sides, thereby fully adapting to the force applied by the heel and ensuring more uniform force distribution around the heel end 3 of the midsole body 1. The cylindrical one-way valves 10 are composed of a vertically arranged elastic cylindrical valve body 22, which has a cylindrical hollow interior 25. The upper end of the elastic cylindrical valve body 22 is provided with a heel vent connection 23, and the lower end of the elastic cylindrical valve body 22 is provided with a heel side hole connection 24. The vertically arranged elastic columnar valve body 22 is connected to the sole heel air inlet 6 on the upper side of the midsole main body 1 through the sole heel air hole connecting portion 23, and the heel side hole connecting portion 24 of the elastic columnar valve body 22 is connected to the heel side exhaust hole 7 on the side of the rear heel end 3 of the midsole main body 1 through a horizontal air hole channel; when the rear heel end 3 of the midsole main body 1 is subjected to heel pressure, the pressurization effect of the columnar hollow inner cavity 25 of the elastic columnar valve body 22 of the columnar one-way valve 10 is utilized to discharge the gas entering the columnar hollow inner cavity 25 through the sole heel air inlet 6 through the heel side exhaust hole 7. In order to prevent debris from clogging the exhaust channel, the outer ports of the forefoot side exhaust holes 5 on both sides of the forefoot end 2 of the midsole body 1 and the heel side exhaust holes 7 on both sides of the heel end 3 are respectively provided with anti-clogging filters 21 to ensure the use effect of the breathable midsole 30.

[0038] The elastic columnar valve body 22 is made of high-quality rubber or plastic materials with good elasticity, strong shrinkability and good memory recovery. The outer wall support body of the elastic columnar valve body is cylindrical, and two conical elastic cavities are continuously arranged in the same direction from the open end to the closed end inside, and a cylindrical hollow inner cavity is arranged in the middle, which fully utilizes the unidirectional permeability of the fluid in the conical elastic cavity. When the outer wall of the elastic columnar valve body support body is subjected to pressure, the fluid pressure in the cylindrical hollow inner cavity increases, the outer wall of the conical elastic cavity set at the front is pressurized and closed, and the inner wall of the conical elastic cavity set at the rear is pressurized and opened, and the fluid flows out in the direction of pressure; after the pressure disappears, the cylindrical elastic valve support body returns to its original shape according to elastic memory, the hollow inner cavity space increases and the pressure decreases, the open end of the conical elastic cavity set at the rear is closed, and the open end of the conical elastic cavity set at the front is opened, and the transition cavity fluid is sucked in. The opening is closed after the pressure is balanced. When it is subjected to pressure again, the discharge action is repeated.

[0039] An upper conical elastic chamber 26 is provided within the cylindrical hollow interior 25 of the elastic cylindrical valve body 22, near one end of the sole and heel air hole connection portion 23. A lower conical elastic chamber 27 is provided within the cylindrical hollow interior 25, near one end of the heel side hole connection portion 24. The lower conical elastic chamber 27 and the upper conical elastic chamber 26 are arranged in the same direction. Furthermore, the upper conical elastic chamber 26 and the lower conical elastic chamber 27 have the same structure, both consisting of a conical support body 28 with a larger upper end and a smaller lower end. The open end of the conical support body 28 faces the sole and heel air hole connection portion 23, and a pressure-sensitive film riser 29 is provided at the closed end of the conical support body 28, which is arranged toward the heel side hole connection portion 24. Furthermore, when the cylindrical one-way valve 10 is subjected to heel pressure, the pressurized airflow is allowed to flow out through the open end of the conical support body 28 of the lower conical elastic cavity 27, opening the pressure-sensitive film riser 29 at the closed end of the conical support body 28 of the lower conical elastic cavity 27, so that the gas in the cylindrical hollow inner cavity 25 of the elastic cylindrical valve body 22 is discharged from the exhaust hole 7 on the side of the heel through the transversely arranged air hole channel. Moreover, when the heel is lifted (the external force is removed), the lower conical elastic cavity 27 returns to its original shape by virtue of its own elasticity, and the pressure-sensitive film riser 29 is also closed. At the same time, since the cylindrical hollow inner cavity 25 of the cylindrical one-way valve 10 returns to its original size (from small to large), the pressure in the cavity decreases, and the gas in the shoe enters the air inlet 6 at the sole heel under the action of atmospheric pressure, and flows in through the open end of the conical support body 28 of the upper conical elastic cavity 26 of the cylindrical one-way valve 10, and opens the pressure-sensitive film riser 29 at the closed end of the conical support body 28 of the upper conical elastic cavity 26, thereby allowing the gas inside the shoe to pass through the air inlet 6 at the sole heel and be replenished into the cylindrical hollow inner cavity 25 of the cylindrical one-way valve 10, thereby forming a one-way flow of ventilation air.

[0040] The conical elastic cavity is made of high-quality rubber or plastic materials with good elasticity, strong shrinkage and good memory recovery. The elastic cavity support body is in the shape of a conical funnel, gradually becoming smaller from the open end to the closed end until it is completely closed. A pressure-sensitive film riser with good elasticity, fatigue resistance and good memory recovery is connected to the closed end. When the inner wall of the conical elastic cavity support body is subjected to fluid pressure, the pressure-sensitive film riser at the closed end opens, and the fluid flows out in the direction of pressure; after the pressure disappears or when the outer wall of the conical elastic cavity support body receives pressure, the pressure-sensitive film closes to prevent the fluid from moving in the opposite direction.

[0041] When a user walks in shoes made of the breathable sole, when the multiple groups of columnar one-way valves 10 at the rear heel end 3 of the breathable shoe midsole 30 are subjected to heel pressure, the pressurized air flows out through the open end of the lower conical elastic cavity 27, and opens the pressure-sensitive film riser 29 at the closed end of the lower conical elastic cavity 27, allowing the gas in the elastic columnar valve body 22 to be discharged through the air hole channel and from the heel side exhaust holes 7 on both sides of the rear heel end 3. At the same time, when the heel is lifted, the lower conical elastic cavity 27 returns to its original state and the pressure-sensitive film riser 29 is closed accordingly; and the gas in the shoe enters the air inlet 6 at the sole and heel under the action of atmospheric pressure, and flows in through the open end of the upper conical elastic cavity 26 of the cylindrical one-way valve 10, so that the pressure-sensitive film riser 29 at the closed end of the upper conical elastic cavity 26 is opened, and then the gas is replenished into the cylindrical one-way valve 10 through the air inlet 6 at the sole and heel, forming a one-way flow of air inside the shoe chamber and at the rear.

[0042] Similarly, when the transition airbag chamber 8 and the plurality of flat one-way valves 9 at the forefoot end 2 of the breathable shoe midsole 30 are subjected to pressure from the sole of the foot, the pressurized air flows out through the open end of the outer fish-mouth elastic chamber 18, opening the pressure-sensitive film flat openings 20 at the closed end of the outer fish-mouth elastic chamber 18, allowing the gas within the elastic flat valve body 13 to be discharged through the forefoot side vents 5 on both sides of the forefoot end 2. Furthermore, when the sole of the foot is lifted, the outer fish-mouth elastic chamber 18 returns to its original state, and the pressure-sensitive film flat openings 20 are closed accordingly. Simultaneously, the gas that has entered the transition airbag chamber 8 through the front sole air inlet 4, under the action of atmospheric pressure, flows through the open end of the inner fish-mouth elastic chamber 17 of the flat one-way valve 9, opening the pressure-sensitive film flat openings 20 at the closed end of the inner fish-mouth elastic chamber 17, thereby replenishing the gas within the transition airbag chamber 8 into the flat one-way valve 9, thereby forming a one-way flow of air within the shoe chamber and the front. Furthermore, the circulatory pressure of the user's feet during normal walking is used to complete the process of air intake and exhaust in the shoe, so as to achieve a one-way smooth flow of fluid inside and outside the shoe, quickly drain moisture and water from the sole, improve the humid, hot and stuffy environment inside the shoe, and enhance the comfort of the sole of the foot.

Claims

1. A breathable shoe sole, comprising a breathable shoe midsole (30), characterized in that: The upper side of the breathable shoe midsole (30) is provided with a breathable shoe upper sole (32), and the lower side of the breathable shoe midsole (30) is provided with a wear-resistant shoe lower sole (31); the breathable shoe midsole (30) is composed of a shoe midsole body (1), and a transition air bag cavity (8) is provided inside the forefoot end (2) of the shoe midsole body (1), and a plurality of groups of foot front air inlet holes (4) are provided on the upper side of the transition air bag cavity (8), and the entrances of the foot front air inlet holes (4) are located on the upper side of the forefoot end (2) of the shoe midsole body (1); a plurality of groups of flat one-way valves (9) are symmetrically provided on the left and right sides of the transition air bag cavity (8), respectively. The inner end of the one-way valve (9) is connected to the transition airbag cavity (8) through the flat valve connection port (12), and the outer end of the flat one-way valve (9) is respectively connected to the side of the forefoot end (2) and the corresponding forefoot side vent (5); a plurality of groups of columnar one-way valves (10) are further provided inside the rear heel end (3) of the shoe midsole body (1), and the upper ends of the columnar one-way valves (10) are respectively connected to the sole heel air inlet (6) on the upper side of the rear heel end (3) of the shoe midsole body (1), and the lower ends of the columnar one-way valves (10) are respectively connected to the side of the rear heel end (3) and the corresponding heel side vent (7); The flat one-way valve (9) is composed of an elastic flat valve body (13), the interior of the elastic flat valve body (13) is provided with a flat valve hollow inner cavity (16), one end of the elastic flat valve body (13) is provided with a transition cavity connection portion (14), and the other end of the elastic flat valve body (13) is provided with a forefoot side hole connection portion (15); the elastic flat valve body (13) is connected to the side of the transition airbag cavity (8) through the transition cavity connection portion (14), and the flat valve hollow inner cavity (16) of the elastic flat valve body (13) is connected to the transition airbag cavity (8); the forefoot side hole connection portion (15) of the elastic flat valve body (13) is connected to the forefoot side vent (5) on the side of the forefoot end (2) of the shoe midsole body (1); The columnar one-way valve (10) is composed of a vertically arranged elastic columnar valve body (22), the interior of the elastic columnar valve body (22) is provided with a columnar hollow inner cavity (25), the upper end of the elastic columnar valve body (22) is provided with a sole heel portion air hole connecting portion (23), and the lower end of the elastic columnar valve body (22) is provided with a heel portion side hole connecting portion (24); the elastic columnar valve body (22) is connected to the sole heel portion air inlet hole (6) on the upper side of the shoe midsole body (1) through the sole heel portion air hole connecting portion (23), and the heel portion side hole connecting portion (24) of the elastic columnar valve body (22) is connected to the heel portion side exhaust hole (7) on the side of the rear heel end (3) of the shoe midsole body (1) through a transverse air hole channel.

2. The breathable sole according to claim 1, characterized in that: An inner fish-mouth-shaped elastic cavity (17) is provided inside the flat valve hollow cavity (16) of the elastic flat valve body (13), at one end close to the transition cavity connection portion (14), and an outer fish-mouth-shaped elastic cavity (18) is provided inside the flat valve hollow cavity (16), at the other end close to the front palm side hole connection portion (15), and the outer fish-mouth-shaped elastic cavity (18) and the inner fish-mouth-shaped elastic cavity (17) are arranged in the same direction.

3. The breathable sole according to claim 2, characterized in that: The inner fish-mouth-shaped elastic cavity (17) and the outer fish-mouth-shaped elastic cavity (18) have the same structure and are both composed of a fish-mouth-shaped support body (19). The open end of the fish-mouth-shaped support body (19) faces the transition cavity connection part (14). The closed end of the fish-mouth-shaped support body (19) is provided with a pressure-sensitive film flat opening (20), and the pressure-sensitive film flat opening (20) is arranged toward the forefoot side hole connection part (15).

4. The breathable sole according to claim 1, characterized in that: An upper conical elastic cavity (26) is provided inside the columnar hollow inner cavity (25) of the elastic columnar valve body (22), near one end of the air hole connecting portion (23) at the sole heel portion, and a lower conical elastic cavity (27) is provided inside the columnar hollow inner cavity (25), near one end of the side hole connecting portion (24) at the heel portion, and the lower conical elastic cavity (27) and the upper conical elastic cavity (26) are arranged in the same direction.

5. The breathable sole according to claim 4, characterized in that: The upper conical elastic cavity (26) and the lower conical elastic cavity (27) have the same structure and are both composed of a conical support body (28). The open end of the conical support body (28) faces the air hole connection part (23) of the sole heel portion, and the closed end of the conical support body (28) is provided with a pressure-sensitive film riser (29), and the pressure-sensitive film riser (29) is arranged toward the side hole connection part (24) of the heel portion.

6. The breathable sole according to claim 1, characterized in that: The flat one-way valves (9) on both sides of the transition airbag cavity (8) inside the forefoot end (2) of the midsole body (1) adopt a structure of three groups of valve bodies arranged symmetrically on the left and right.

7. The breathable sole according to claim 1, characterized in that: The columnar one-way valve (10) inside the rear heel end (3) of the shoe midsole body (1) adopts a structural form of two groups of valve bodies arranged symmetrically on the left and right.

8. The breathable sole according to claim 1, characterized in that: The outer ports of the forefoot side vent holes (5) on both sides of the forefoot end (2) of the shoe midsole body (1) and the heel side vent holes (7) on both sides of the heel end (3) are respectively provided with anti-blocking filter screens (21).

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