A dynamic ventilation and odor eliminating toe shoe

Abstract

This invention relates to the field of footwear technology, providing a pointe shoe with dynamic ventilation and odor removal capabilities. The shoe includes a shoe body, an air guide ring, and a ventilation and odor removal component. The component includes a pump chamber, a deodorizing chamber, a first one-way air intake channel, a second one-way air intake channel, and a one-way exhaust channel. The pump chamber's inlet connects to the air guide ring via the first one-way air intake channel, drawing in gas from inside the shoe body. The pump chamber's outlet connects to the deodorizing chamber via the second one-way air intake channel. The deodorizing chamber filters and adsorbs odor substances from the gas drawn in by the pump chamber and discharges the airflow through the one-way exhaust channel. When the shoe's upper bends, the pump chamber compresses its volume, sending internal gas into the deodorizing chamber through the second one-way air intake channel. When the shoe's upper rebounds, the pump chamber increases its volume, drawing in hot air from inside the shoe through the air guide ring, thus creating a directional circulation exhaust system. This invention solves the problem of ineffective exhaust of humid and hot air from the toe box of existing pointe shoes.

Description

Technical Field

[0001] This invention relates to the field of footwear technology, and more particularly to a pointe shoe with dynamic ventilation and odor removal. Background Technology

[0002] Pointe shoes are the core equipment for dancers during pointe training and stage performances. To ensure the support, shape retention, and stability of the toe box and the dancer's standing on pointe, current pointe shoes typically use multiple layers of adhesive fabric, rigid shaping materials, and a relatively closed upper structure. While this structure can meet the load-bearing requirements of pointe training and stage performances, the small internal space of the toe box and poor air circulation make it difficult for sweat and moisture generated by the dancer's feet during long training sessions or performances to escape in time, easily accumulating in the toe and forefoot areas.

[0003] In high-temperature, high-humidity, and enclosed environments, the shoe lining, toe box, and insole are prone to prolonged dampness, leading to noticeable odors and potential issues such as hardening of the lining, material aging, and decreased comfort. Pointe shoes, in particular, subject the toe area to significant pressure, requiring dancers to wear thicker toe covers, socks, or padding, further reducing airflow and making air exchange and moisture removal even more difficult.

[0004] Currently, dancers mainly alleviate odor problems by airing out shoes after training, placing deodorizing bags, spraying deodorants, changing insoles, or using disposable sweat-absorbing materials. However, most of these methods are passive treatments after training and cannot continuously expel moisture during wear. At the same time, the perforations, mesh, or large-area breathable structures commonly used in ordinary breathable shoes are not suitable for the toe box and front platform area of ​​pointe shoes, because this area of ​​pointe shoes bears the main support and force-bearing functions. Directly opening holes or using soft materials may affect the strength, stability, and service life of the toe box.

[0005] To address the aforementioned shortcomings of pointe shoes, some existing technologies have proposed improvement solutions. For example, Chinese patent document CN219578372U discloses a ballet shoe with a comfortable sole, which utilizes an air bladder and air cushion structure at the toe end of the sole. When dancers take toe jumps, the compression of the air bladder inflates the air chamber, injecting air into the air cushion to support the foot. However, this solution only optimizes sole cushioning and pressure distribution, without addressing the issue of moisture and odor removal from the shoe; the problem of humid and hot air accumulating inside the toe box remains. Another Chinese patent document, CN219894808U, discloses a breathable dance shoe with ankle protection, which uses cavities and ventilation holes in the insole, combined with a one-way air intake bladder, to achieve air circulation within the shoe. However, this solution is mainly suitable for soft-soled dance shoes, where the breathable structure is located in the insole and sole area. It cannot be applied to the toe box of pointe shoes, a closed area requiring high-strength support. This is because the front platform of the toe box bears the entire weight of the dancer when standing on pointe, and directly creating ventilation holes or cavities would severely affect the structural strength of the toe box. For example, Chinese patent document CN119423448A discloses a breathable and waterproof shoe with an integrated upper and lining, which achieves unidirectional moisture expulsion through a breathable and waterproof inner sleeve unit. However, this solution focuses on the composite material construction of the upper and lining, and does not provide a moisture-wicking solution for the special toe box structure of pointe shoes. Furthermore, its breathable and waterproof principle relies on the material's own permeability, which is difficult to achieve in the toe box of pointe shoes, which is composed of multiple layers of adhesive and rigid shaping materials.

[0006] Regarding international patents, US patent application US2019 / 0098956A1 and its granted patent US10426220B2 disclose a pointe shoe with enhanced impact protection and moisture-proof degradation performance. This design uses two layers of silicone in the toe box structure as a moisture barrier to prevent dancers' sweat from penetrating the internal structural materials, thus slowing down the deterioration of the toe box due to moisture. However, this solution passively blocks the erosion of the toe box structural materials by setting up a moisture barrier, failing to actively expel the already generated humid and hot air inside the shoe. While it can protect the toe box structural materials from moisture damage to some extent, the humid and hot air inside the toe box still cannot escape, and the dancer's stuffiness and discomfort remain unresolved. Furthermore, this solution further increases the thickness of the toe box by adding multiple layers of silicone moisture-proof layers, potentially making the already cramped internal space even more confined and exacerbating the problem of poor air circulation.

[0007] Therefore, there is an urgent need for a type of pointe shoe that can improve air circulation and moisture removal capabilities inside the shoe, especially in the toe area, and reduce odor accumulation without significantly weakening the load-bearing performance of the toe box, sole plate, and forefoot platform. Summary of the Invention

[0008] Therefore, in response to the above problems, this invention proposes a pointe shoe with dynamic ventilation and odor removal. Without weakening the support and shaping performance of the toe box, it utilizes the repeated bending of the shoe waist during the dancer's pointe movements as a driving force to achieve the directional and continuous discharge of hot and humid gas inside the shoe, effectively solving the problems of moisture accumulation and odor generation inside pointe shoes.

[0009] To solve this technical problem, the present invention adopts the following solution: a toe shoe with dynamic ventilation and odor removal, comprising a shoe body, the shoe body comprising a sole plate and an upper plate disposed on the sole plate, the upper plate having an opening for the foot to enter, a toe box being provided at the toe portion between the upper plate and the sole plate, an inner lining layer being provided on the sole plate, and further comprising an air guide ring and a ventilation and odor removal component, the ventilation and odor removal component comprising an air pump chamber, an odor removal chamber, a first one-way air intake channel, a second one-way air intake channel, and a one-way exhaust channel; The air guide ring is located on the periphery of the sole plate inside the shoe body; The air pump chamber is located in the shoe waist area between the inner lining layer and the sole plate. The air pump chamber is a deformable sealed cavity and its volume changes when the shoe waist bends or rebounds. The odor-eliminating cavity is located on the foot area between the inner lining and the sole. The air pump chamber is provided with an air inlet that is connected to the air guide ring. The air inlet of the air pump chamber draws the gas inside the shoe body into the air pump chamber through the first one-way air inlet channel. The air pump chamber is provided with an air outlet that is connected to the deodorizing chamber through the second one-way air inlet channel. The exhaust port of the deodorizing chamber is connected to the outside of the shoe body through the one-way exhaust channel. The deodorizing chamber filters and adsorbs odor substances from the gas sent into the air pump chamber and discharges the airflow through the one-way exhaust channel. When the shoe waist bends, the pump chamber compresses its volume and sends the internal gas into the odor-eliminating chamber through the second one-way air intake channel. When the shoe waist rebounds, the pump chamber increases its volume and draws in hot air from inside the shoe through the air guide ring, thus forming a directional circulation exhaust.

[0010] The "waist" area refers to the section of the sole corresponding to the dancer's arch, which bends and deforms when the dancer transitions from a flat-footed to a semi-toe or toe position. The air pump chamber is a flat, sealed, sac-like cavity, elliptical or square in shape, with its major axis along the length of the shoe and its minor axis along the width. The upper surface of the air pump chamber abuts against the lower surface of the lining layer, or the upper surface of the air pump chamber and the lower surface of the lining layer are fixedly connected and sealed by heat sealing. The lower surface of the air pump chamber abuts against or is fixedly connected to the upper surface of the sole. When the dancer transitions from a flat-footed position to a semi-pointe or pointe position, the shoe's waist bends, reducing the distance between the sole and the lining. The upper and lower surfaces of the air pump chamber are compressed, causing the flat, sac-like volume of the air pump chamber to be compressed. When the dancer returns from the pointe or semi-pointe position to a flat-footed position, the shoe's waist rebounds and returns to its original position, increasing the distance between the sole and the lining. The air pump chamber, relying on the elastic restoring force of its constituent materials, rebounds and returns to its original position, increasing the volume of the air pump chamber and creating negative pressure within it.

[0011] The air guide ring is a breathable annular structure arranged around the perimeter of the sole plate. The front end of the air guide ring extends to the side wall of the toe box. A gas flow gap is formed between the side wall of the air guide ring and the inner side wall of the shoe upper. The hot and humid gas generated in various areas inside the shoe can be gathered into the air guide ring through this gap. After the annular channel of the air guide ring gathers the hot air from various areas inside the shoe, it is connected to the air inlet of the pump chamber through the first one-way air inlet channel.

[0012] Furthermore, it also includes a third one-way air intake channel. The odor-eliminating chamber is provided with a second air intake. The second air intake of the odor-eliminating chamber is connected to the air guide ring located on the side wall of the shoe toe box inside the shoe body through the third one-way air intake channel. After the odor-eliminating chamber exhausts, a negative pressure is generated in the chamber and the hot air in the shoe toe box area is adsorbed through the third one-way air intake channel.

[0013] Furthermore, the pump chamber is formed by a flexible, fold-resistant sheet material.

[0014] Furthermore, the elastic, fold-resistant sheet material is a TPU film or silicone leather, wherein the thickness of the TPU film is 0.3mm to 0.8mm; and the thickness of the silicone leather is 0.5mm to 1.0mm.

[0015] Furthermore, the air guide ring is one of a three-dimensional spacer fabric layer, an annular porous support layer, or an elastic mesh layer. The three-dimensional spacer fabric layer is a three-dimensional spacer fabric woven from polyester or nylon monofilaments, with a thickness of 2mm to 4mm and a porosity of 60% to 85%. The annular porous support layer is an injection-molded PP or PE porous grid support with a wall thickness of 1.5mm to 2.5mm, and ventilation holes with a diameter of 2mm to 5mm are evenly distributed on the support. The elastic mesh layer is a mesh support structure injection-molded from polyurethane elastomer, with a rhomboid or hexagonal grid, a single cell side length of 3mm to 8mm, and a rib diameter of 0.8mm to 1.5mm.

[0016] Furthermore, the initial volume of the pump chamber is 15mL to 28mL, and when the shoe waist is bent, the volume of the pump chamber is compressed to 40% to 60% of the initial volume.

[0017] Furthermore, the odor-eliminating chamber is equipped with a modular box, which is filled with one or more combinations of odor-eliminating adsorbent materials selected from activated carbon particles, zeolite particles, molecular sieve particles, or diatomaceous earth particles. The outlet of the second unidirectional air inlet channel is connected to the modular box, and the modular box is equipped with a plurality of exhaust holes.

[0018] Furthermore, the outer port of the one-way exhaust channel is covered with a waterproof and breathable membrane, which is an expanded polytetrafluoroethylene waterproof and breathable membrane with a moisture permeability ≥5000g / m²·24h and a hydrostatic pressure ≥10000mmH2O.

[0019] Furthermore, the ventilation and odor removal component is fixed on the inner lining layer, and the outer port of the one-way exhaust channel of the ventilation and odor removal component is detachably and sealedly connected to the shoe body.

[0020] Furthermore, it also includes a one-way air intake valve, which is located in the forefoot area of ​​the sole plate or on the side wall of the toe box of the shoe upper. The one-way air intake valve is a miniature duckbill type one-way valve with an opening pressure of 0.3kPa to 0.8kPa, allowing only external air to flow into the inner area of ​​the toe box for ventilation.

[0021] A method for deodorizing and removing moisture from pointe shoes using the above-mentioned dynamic ventilation and odor removal techniques includes the following steps: S1. Air Conduction: When dancers wear pointe shoes for training or performance, the hot and humid sweat generated in the toes and forefoot areas is collected by the air conduction ring set around the perimeter of the sole inside the shoe. S2, Flexing Pump: When the dancer transitions from a flat-footed position to a semi-pointe or pointe position, the shoe waist bends. The pump chamber located between the lining and the sole plate at the shoe waist is compressed and undergoes elastic bending deformation, reducing the volume of the pump chamber and increasing the air pressure inside. The gas in the pump chamber enters the deodorizing chamber for filtration through the second one-way air intake channel. The deodorizing chamber filters and adsorbs odor substances from the gas drawn in by the pump chamber and discharges the airflow through the one-way exhaust channel. When the dancer returns from a toe or half-toe position to a flat position, the elastic rebound of the air pump chamber increases the volume of the air pump chamber and creates negative pressure inside the chamber, drawing the hot and humid gas inside the shoe body into the air pump chamber through the air guide ring. S3. Targeted purification and emission: The hot and humid gas discharged from the pump chamber in step S2 is forced to pass through the adsorption material in the deodorizing chamber to adsorb and filter the odor molecules and residual moisture in the airflow. The filtered gas is discharged to the outside of the shoe through a one-way exhaust channel. During the dancer's toe movements, the air is continuously circulated to achieve dehumidification and deodorization.

[0022] By adopting the aforementioned technical solution, the beneficial effects of this invention are as follows: By placing the air guide ring on the periphery of the sole plate inside the shoe body, avoiding the stress area of ​​the toe box, and by setting up ventilation and odor removal components, the mechanical changes of repeated bending and rebound of the shoe waist during normal training movements of dancers drive the air pump chamber and odor removal chamber inside the shoe to circulate and dehumidify the air. This eliminates the need for external energy sources such as batteries and micro fans, allowing pointe shoes to achieve ventilation and dehumidification without affecting the stress requirements. The air pump chamber and odor removal chamber are all arranged between the inner lining layer and the sole plate, with the air guide ring fitting against the inner side wall of the shoe upper. All ventilation and odor removal components are hidden inside the shoe, without altering the toe box support platform or the stress structure of the sole plate. This fully preserves the professional ballet functions of pointe shoes in terms of toe support, weight-bearing, and cushioning, without changing the shoe shape or support rigidity, and without affecting the dancer's power, balance, and the standard of dance movements. It solves the ventilation and odor removal defects without sacrificing professional performance. The design of the first one-way air intake channel, the second one-way air intake channel, and the one-way exhaust channel ensures that the air inside the shoe flows only in the following direction: "humid and hot air inside the shoe → air guide ring → first one-way air intake channel → compression and pushing in the pump chamber → second one-way air intake channel → filtration in the deodorizing chamber → exhaust outside the shoe through the one-way exhaust channel." This prevents the expelled moisture from flowing back into the shoe while ensuring that dry external air can be replenished in an orderly manner, forming a continuous and stable micro-circulation ventilation process. The more intense the exercise, the higher the ventilation efficiency, achieving dynamic synchronous ventilation. Throughout the dance, the shoe continuously circulates and expels humid and hot air from the shoe; it also continuously and dynamically extracts high-temperature and high-humidity air from the shoe, reducing the damp and stuffy environment inside the shoe cavity, destroying the temperature and humidity conditions required for the reproduction of bacteria and fungi, alleviating problems such as foot odor, athlete's foot, peeling feet, and sweat blisters caused by wearing pointe shoes for a long time, improving the health of long-term training and wearing, significantly improving the comfort of wearing pointe shoes, and extending the service life of pointe shoes.

[0023] By setting up a third unidirectional air intake channel that connects separately to the air guide ring located on the side wall of the toe box inside the shoe body, the odor-eliminating chamber creates negative pressure when exhausting air, directionally drawing out stale air from the toe box area. This effectively absorbs the high-temperature, stuffy air accumulated inside the toe box. The air guide ring can be made of breathable support structures such as three-dimensional spaced fabric or porous plastic grid, which can continuously guide airflow while isolating the upper from the skin of the foot, leaving gaps for air circulation and preventing the fabric from sticking to the skin and blocking breathability. The air guide ring surrounding the inner side of the upper serves as a global air flow channel, allowing hot air from all areas inside the shoe to converge there, preventing localized air stagnation. The odor-eliminating chamber has a built-in modular box that can be filled with composite adsorption particles such as activated carbon, zeolite, molecular sieves, and diatomaceous earth. This physically adsorbs and locks in odor molecules such as ammonia, organic acids, and sulfides volatilized from foot sweat, removing odors at the source rather than merely masking them. The ventilation and odor removal components are integrated with the inner lining, allowing for complete replacement of both the inner lining and the entire ventilation and odor removal component once the adsorption material is saturated. This eliminates the need to replace the entire pointe shoe, reducing operating costs. The ventilation and odor removal components can be pre-assembled as a single unit and then installed into the shoe body, simplifying the sewing and assembly process and improving mass production efficiency. The sealed plug-in structure ensures no air leakage after assembly, guaranteeing that the negative pressure and compressed airflow in the pump chamber and odor removal chamber remain unaffected by replacement, thus maintaining stable ventilation efficiency. The combination of multiple adsorption materials provides a large adsorption capacity and long-lasting durability, suitable for dancers' long hours of high-intensity training and performance needs. The outer port of the one-way exhaust channel is covered with a waterproof and breathable membrane, ensuring unidirectional gas discharge and preventing liquid water penetration.

[0024] The air pump chamber is formed by a fold-resistant membrane made of TPU film or silicone leather, which is resistant to repeated bending and fatigue. Dancers can withstand tens of thousands of flexes and extensions of the shoe waist without cracking or leaking air, ensuring long-term stable circulation and moisture removal. The air guide ring is made of PP / PE injection-molded porous grid and polyester / nylon three-dimensional spacer fabric, which is wear-resistant and compression-resistant. It will not collapse and block the air passage when the toes are under pressure, maintaining continuous air flow. All accessories are flexible to adapt to the deformation of the shoe body, so there will be no problems of hard parts rubbing or hurting the feet. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of the present invention; Figure 2 This is a partially exploded structural diagram of an embodiment of the present invention; Figure 3 This is a schematic diagram of the partially assembled structure according to an embodiment of the present invention; Among them, 1. sole plate, 2. upper, 3. air guide ring, 5. toe box, 6. lining layer, 11. leather outsole, 12. shoe waist support plate, 41. air pump chamber, 42. odor removal chamber, 43. first one-way air intake channel, 44. second one-way air intake channel, 45. third one-way air intake channel, 46. one-way exhaust channel, 421. modular box body. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses. Example 1

[0028] refer to Figures 1 to 3The preferred embodiment of the present invention, a pointe shoe with dynamic ventilation and odor removal, includes a shoe body. The shoe body includes a sole plate 1, an upper 2 disposed on the sole plate 1, an air guide ring 3, and a ventilation and odor removal component. The upper 2 has an opening for the foot to enter. A toe box 5 is provided at the toe area between the upper 2 and the sole plate 1. The toe box 5 has a platform at its front top. The toe box 5 is a rigid, shaped structure at the front of the pointe shoe, used to support the dancer's toes when standing on pointe. An inner lining layer 6 is provided on the sole plate 1. The sole plate 1 includes a leather outsole 11 and a shoe waist support plate 12. The ventilation and odor removal component includes a pump chamber 41, an odor removal chamber 42, a first one-way air intake channel 43, a second one-way air intake channel 44, a third one-way air intake channel 45, and a one-way exhaust channel 46. The first one-way air intake channel 43, the second one-way air intake channel 44, the third one-way air intake channel 45, and the one-way exhaust channel 46 are all miniature duckbill-type one-way valves. The valve body is made of silicone rubber, and the opening pressure is 0.5 kPa to 2.0 kPa. The opening pressure of the first one-way air intake channel 43 is 0.5 kPa to 1.0 kPa to ensure that the pump chamber 41 can easily draw in gas from the air guide ring 3 when it rebounds; the opening pressure of the second one-way air intake channel 44 is 1.0 kPa to 2.0 kPa to ensure that the gas can smoothly enter the odor-removing chamber 42 without backflow when the pump chamber 41 is compressed; the opening pressure of the third one-way air intake channel 45 is 0.5 kPa to 1.0 kPa to ensure that gas can be drawn in from the shoe box area when a negative pressure is formed after the odor-removing chamber 42 is exhausted; the opening pressure of the one-way exhaust channel 46 is 1.0 kPa to 2.0 kPa to ensure that the gas in the odor-removing chamber 42 is discharged only after reaching a certain pressure, ensuring that the gas has enough residence time in the odor-removing chamber 42 to contact the adsorption material.

[0029] The air guide ring 3 is located around the perimeter of the sole plate 1 inside the shoe body. The air guide ring 3 is a three-dimensional spacer fabric layer, specifically a three-dimensional spacer fabric woven from polyester monofilaments, with a thickness of 2mm to 4mm and a porosity of 60% to 85%. The three-dimensional spacer fabric consists of a surface mesh, a bottom plain fabric, and intermediate connecting monofilaments, forming a stable three-layer hollow integrated structure with good breathability, high resilience, and physical support performance. The air guide ring 3 surrounds the heel to the forefoot area and extends to the side wall of the toe box 5, and is fixed to the perimeter of the sole plate 1 by stitching. An air flow gap is formed between the air guide ring 3 and the inner side wall of the upper 2, allowing humid and hot gases generated in various areas inside the shoe to flow into the air guide ring 3 through this gap.

[0030] The air pump chamber 41 is located in the shoe waist area between the inner lining layer 6 and the sole plate 1, and the odor-eliminating chamber 42 is located in the foot area between the inner lining layer 6 and the sole plate 1. The air pump chamber 41 and the odor-eliminating chamber 42 are integrally molded from a TPU film to form two chambers, and each chamber has an opening at its upper part. The upper openings of the two chambers are sealed by heat sealing with the inner lining layer 6. The air pump chamber 41 has a flat, sac-like structure with a square planar shape. The length of the air pump chamber 41 is arranged along the length of the shoe, and the width of the air pump chamber 41 is arranged along the width of the shoe. The initial volume of the air pump chamber 41 is 20 mL, and the compression ratio can reach 40% to 60% when the shoe waist is bent, that is, 6 mL to 12 mL of gas can be discharged with each compression. When the shoe waist bends, the gap between the sole plate 1 and the inner lining layer 6 decreases, and the upper and lower surfaces of the pumping chamber 41 are pressed against each other. The thickness of the flat sac-like cavity decreases and the planar area increases slightly, and the overall volume is compressed, thus compressing the pumping chamber 41. When the shoe waist rebounds, the pumping chamber 41 returns to its initial flat shape by relying on the elastic recovery force of the TPU membrane itself, and a negative pressure is formed inside the cavity.

[0031] Before sealing with the inner liner 6, a first one-way air inlet channel 43 is installed on the air inlet of the pump chamber 41. A shared partition, 4mm wide, is formed between the pump chamber 41 and the odor-neutralizing chamber 42 by a heat-sealed dividing line, making the two chambers structurally independent. A through hole is provided on the partition, through which a second one-way air inlet channel 44 passes, with its inlet end located inside the pump chamber 41. The partition remains essentially undeformed when the pump chamber 41 is compressed, ensuring that the volume of the odor-neutralizing chamber 42 remains stable during operation and is not passively compressed due to the compression of the pump chamber 41. This ensures that the gas in the odor-neutralizing chamber 42 has sufficient residence time to fully contact the adsorbent material. A modular box 421 is installed inside the odor-neutralizing chamber 42. The modular box 421 is a box-shaped structure injection-molded from polypropylene (PP). Multiple vent holes with a diameter of 1mm to 3mm are provided on the side and bottom walls of the box, and an openable cover is provided on the top. The modular box 421 is filled with an odor-neutralizing adsorption material, a 1:1 mass ratio of activated carbon particles and zeolite particles, with a particle size of 1.0mm and a filling amount of 20g. The activated carbon has an adsorption efficiency of 60% to 70% for ammonia and 98% to 99% for hydrogen sulfide. The outlet of the second one-way air intake channel 44 is connected to the interior of the modular box 421. The modular box 421 is provided with a plurality of exhaust holes. The third one-way air intake channel 45 is inserted through the second air intake of the odor-neutralizing chamber 42. The air intake of the third one-way air intake channel 45 is connected to the air guide ring 3 at the corresponding position on the side wall of the shoe toe box 5 through a flexible hose. The one-way exhaust channel 46 is provided on the exhaust hole of the odor-neutralizing chamber 42. It extends downward from the exhaust hole of the odor-neutralizing chamber 42 through the foot area of ​​the sole plate 1 and forms an exhaust port on the outer bottom surface of the sole plate 1. A sealing ring is provided between the one-way exhaust channel 46 and the through hole of the sole plate 1 to prevent moisture from the outside of the shoe from seeping into the shoe body through the through hole. The outer port of the one-way exhaust channel 46 is covered with an expanded polytetrafluoroethylene waterproof and breathable membrane. The moisture permeability of the waterproof and breathable membrane is ≥5000g / m²·24h and the hydrostatic pressure is ≥10000mmH2O, so as to achieve one-way gas discharge and prevent liquid water from seeping in.

[0032] An air guide ring 3 is fitted onto the outside of the air pumping chamber 41 and the odor-neutralizing chamber 42. The air pumping chamber 41 is a deformable sealed cavity, and its volume changes when the shoe bends or rebounds. The air inlet of the air pumping chamber 41 is connected to the air guide ring 3 through the first one-way air intake channel 43, drawing gas from inside the shoe body into the air pumping chamber 41. The air outlet of the air pumping chamber 41 is connected to the odor-neutralizing chamber 42 through the second one-way air intake channel 44. The exhaust port of the odor-neutralizing chamber 42 is connected to the outside of the shoe body through the one-way exhaust channel 46. The odor-neutralizing chamber 42 filters and adsorbs odor substances from the gas drawn in by the air pumping chamber 41 and discharges the airflow through the one-way exhaust channel 46. When the shoe bends, the air pumping chamber 41 compresses its volume, sending the internal gas into the odor-neutralizing chamber 42 through the second one-way air intake channel 44. When the shoe rebounds, the air pumping chamber 41 increases its volume, drawing in hot air from inside the shoe through the air guide ring 3, thus forming a directional circulation exhaust. The second air inlet of the deodorizing chamber 42 is connected to the air guide ring 3 located on the side wall of the shoe toe box 5 inside the shoe body through the third one-way air intake channel 45. After the deodorizing chamber 42 exhausts, the chamber generates negative pressure and adsorbs the hot air (humid and turbid air) in the area of ​​the shoe toe box 5 through the third one-way air intake channel 45.

[0033] In this invention, the "shoe waist" refers to the area of ​​the sole plate 1 of the toe shoe corresponding to the dancer's arch region, i.e., the location of the shoe waist support plate 12. This area undergoes bending deformation when the dancer transitions from a flat-footed state to a semi-pointe or pointe position, making it a key location for the air pump chamber 41 in this invention. During use, the gas inside the shoe flows unidirectionally along the following path: humid and hot air from the toe box 5 area and other areas inside the shoe → gathers through the air guide ring 3 → enters the air pump chamber 41 (drawn in when the shoe waist rebounds) through the first one-way air intake channel 43 → is compressed and pushed by the air pump chamber 41 → enters the odor-neutralizing chamber 42 (adsorption and filtration) through the second one-way air intake channel 44 → is discharged outside the shoe through the one-way exhaust channel 46. Simultaneously, the negative pressure formed after the odor-neutralizing chamber 42 exhausts gas through the third one-way air intake channel 45, directionally drawing humid and hot gas from the toe box 5 area, further enhancing the ventilation effect of the toe box 5 area. When the air pump chamber 41 rebounds and draws in air, the air pressure inside the shoe decreases, and dry air from outside naturally enters the shoe through the micropores of the shoe upper material or the shoe opening, forming a complete air exchange cycle.

[0034] A method for deodorizing and removing moisture from pointe shoes using the above-mentioned dynamic ventilation and odor removal techniques includes the following steps: S1, Air Conduction: When dancers wear pointe shoes for training or performance, the hot and humid sweat generated in the toes and forefoot areas is collected by the air conduction ring 3 set around the sole plate 1 inside the shoe body. S2, Flexing Pump: When the dancer transitions from a flat-footed state to a semi-pointe or pointe state, the shoe waist bends. The pump chamber 41 located at the shoe waist between the inner lining layer 6 and the sole plate 1 is subjected to pressure and undergoes elastic bending deformation, which reduces the volume of the pump chamber 41 and increases the air pressure inside the chamber. The gas in the pump chamber 41 enters the deodorizing chamber 42 for filtration through the second one-way air intake channel 44. The deodorizing chamber 42 filters and adsorbs odor substances from the gas drawn in by the pump chamber 41 and discharges the airflow through the one-way exhaust channel 46. When the dancer returns from the pointe or half-pointe position to the flat position, the elastic rebound of the air pump chamber 41 increases the volume of the air pump chamber 41 and creates a negative pressure in the chamber, drawing the hot and humid gas in the shoe body into the air pump chamber 41 through the air guide ring 3. S3. Targeted purification and emission: The hot and humid gas discharged from the pump chamber in step S2 is forced to pass through the activated carbon adsorption material in the odor removal chamber 42 to adsorb and filter the odor molecules and residual moisture in the airflow. The filtered gas is discharged to the outside of the shoe through the one-way exhaust channel 46. During the dancer's toe movements, continuous circulation and ventilation are achieved to realize dynamic ventilation and deodorization. Example 2

[0035] The difference between this embodiment and Embodiment 1 is that it also includes a one-way air intake valve, which is located on the side wall of the toe box. This one-way air intake valve allows only unidirectional flow of external air into the air guide ring. The one-way air intake valve is a miniature duckbill-type one-way valve with an opening pressure of 0.3 kPa to 0.8 kPa. When the pump chamber draws in air, a negative pressure is created within the air guide ring, and dry external air is replenished into the toe box area through the one-way air intake valve, forming a directional micro-circulation ventilation within the shoe, preventing discomfort caused by excessively low air pressure inside the shoe.

[0036] The other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here. Example 3

[0037] The difference between this embodiment and Embodiment 1 is that the air guide ring is an annular porous support layer. This annular porous support layer is an injection-molded PP porous grid support layer. The support layer surrounds the heel to the forefoot area and extends to the side wall of the toe box. Several ventilation holes are evenly distributed on the support layer, forming an air guide gap between the support layer and the side wall of the toe box. The thickness of this annular porous support layer is 2mm. This annular porous support layer is fixed to the periphery of the sole surface by stitching.

[0038] The other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

[0039] In this invention, the width of the partition between the integrally formed pumping chamber and the odor-eliminating chamber is preferably 3mm to 5mm. The pumping chamber is a deformable and elastically recoverable sealed cavity. This cavity is not limited to being formed by an elastic, fold-resistant sheet material; it can also be any other sealed cavity structure capable of volume deformation for exhaust and negative pressure intake. The pumping chamber can also be a flat, sac-like shape or a flat, spherical air chamber shape formed solely by an elastic, fold-resistant sheet material, with a planar shape of ellipse or square, etc. For example, the elastic, fold-resistant sheet material can be a TPU film or silicone leather. The thickness of the TPU film is preferably 0.3mm to 0.8mm; the thickness of the silicone leather is preferably 0.5mm to 1.0mm. The air guide ring can also be replaced by an annular porous support layer, an elastic mesh layer, etc. The annular porous support layer is an injection-molded PP or PE porous grid support; the three-dimensional spacer fabric layer is a three-dimensional spacer fabric woven from polyester or nylon monofilaments, with a thickness of 2mm to 4mm and a porosity of 60% to 85% being preferred; the annular porous support layer is an injection-molded PP or PE porous grid support with a wall thickness of 1.5mm to 2.5mm, and ventilation holes with a diameter of 2mm to 5mm are evenly distributed on the support; the elastic mesh layer is a mesh support structure injection-molded from polyurethane elastomer, with a rhomboid or hexagonal mesh, a single cell side length of 3mm to 8mm, and a rib diameter of 0.8mm to 1.5mm being preferred. The odor-eliminating chamber can also directly contain one or more combinations of odor-eliminating adsorbent materials selected from activated carbon particles, zeolite particles, molecular sieve particles, or diatomaceous earth particles. The air inlet and outlet of the odor-eliminating chamber are separated by the odor-eliminating adsorbent material to filter the gas. Alternatively, the odor-eliminating adsorbent material can be wrapped with a breathable membrane, with the air inlet inserted into the membrane to filter hot air. The pump chamber and odor-eliminating chamber of the ventilation and odor removal component can also be set up as separate independent modules. It is only necessary to connect the air circulation completely and ensure that the pump chamber is located in the shoe's upper area, allowing it to compress its volume to expel air when the shoe bends and increase its volume to draw in air when the shoe rebounds. In this embodiment, the pump chamber, odor-eliminating chamber, and inner lining are integrated into a single structure to make it a replaceable structure, allowing for partial replacement to extend the lifespan of the pointe shoes and reduce their operating costs. A one-way air intake valve can also be added, which can be set in the forefoot area of ​​the sole plate or on the side wall of the toe box of the shoe upper. This allows the one-way air intake valve to allow only external air to flow into the inner area of ​​the toe box for ventilation, improving the circulation of air between the toe box area and the outside cavity, further improving the breathability and enhancing the wearing comfort.The first, second, third, and one-way air intake channels can all be duckbill-type or spring-loaded one-way valves, etc. All three channels are miniature duckbill-type one-way valves with silicone rubber bodies and an opening pressure of 0.5 kPa to 2.0 kPa. Specifically, the opening pressures of the first and third one-way air intake channels are 0.5 kPa to 1.0 kPa, and the opening pressures of the second and one-way air intake channels are 1.0 kPa to 2.0 kPa. The initial volume of the pump chamber is preferably 15 mL to 28 mL, and it is preferable that the volume of the pump chamber is compressed to 40% to 60% of its initial volume when the shoe is bent.

[0040] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A toe shoe with dynamic ventilation and odor removal, comprising a shoe body, the shoe body including a sole plate and an upper plate disposed on the sole plate, the upper plate having an opening for the foot to enter, a toe box being provided at the toe portion between the upper plate and the sole plate, and an inner lining layer being provided on the sole plate, characterized in that: It also includes an air guide ring and an air exchange and odor removal component, wherein the air exchange and odor removal component includes a pump chamber, an odor removal chamber, a first one-way air intake channel, a second one-way air intake channel, and a one-way exhaust channel; The air guide ring is located on the periphery of the sole plate inside the shoe body; The air pump chamber is located in the shoe waist area between the inner lining layer and the sole plate. The air pump chamber is a deformable sealed cavity and its volume changes when the shoe waist bends or rebounds. The odor-eliminating cavity is located on the foot area between the inner lining and the sole. The air pump chamber is provided with an air inlet that is connected to the air guide ring. The air inlet of the air pump chamber draws the gas inside the shoe body into the air pump chamber through the first one-way air inlet channel. The air pump chamber is provided with an air outlet that is connected to the deodorizing chamber through the second one-way air inlet channel. The exhaust port of the deodorizing chamber is connected to the outside of the shoe body through the one-way exhaust channel. The deodorizing chamber filters and adsorbs odor substances from the gas sent into the air pump chamber and discharges the airflow through the one-way exhaust channel. When the shoe waist bends, the pump chamber compresses its volume and sends the internal gas into the odor-eliminating chamber through the second one-way air intake channel. When the shoe waist rebounds, the pump chamber increases its volume and draws in hot air from inside the shoe through the air guide ring, thus forming a directional circulation exhaust.

2. The pointe shoes with dynamic ventilation and odor removal according to claim 1, characterized in that: It also includes a third one-way air intake channel. The odor-eliminating chamber is provided with a second air inlet. The second air inlet of the odor-eliminating chamber is connected to the air guide ring located on the side wall of the shoe toe box inside the shoe body through the third one-way air intake channel. After the odor-eliminating chamber exhausts, a negative pressure is generated in the chamber and the hot air in the shoe toe box area is adsorbed through the third one-way air intake channel.

3. The pointe shoes with dynamic ventilation and odor removal according to claim 1, characterized in that: The pump chamber is formed by a combination of elastic, fold-resistant sheets.

4. The pointe shoes with dynamic ventilation and odor removal according to claim 3, characterized in that: The elastic, fold-resistant sheet material is a TPU film or silicone leather, wherein the thickness of the TPU film is 0.3mm to 0.8mm; and the thickness of the silicone leather is 0.5mm to 1.0mm.

5. The pointe shoes with dynamic ventilation and odor removal according to claim 1, characterized in that: The air guide ring is one of three-dimensional spacer fabric layer, annular porous support layer, and elastic mesh layer. The three-dimensional spacer fabric layer is a three-dimensional spacer fabric woven from polyester or nylon monofilament, with a thickness of 2mm to 4mm and a porosity of 60% to 85%. The annular porous support layer is an injection-molded PP or PE porous grid support with a wall thickness of 1.5mm to 2.5mm, and ventilation holes with a diameter of 2mm to 5mm are evenly distributed on the support. The elastic mesh layer is a mesh support structure injection-molded from polyurethane elastomer, with a rhomboid or hexagonal grid, a single cell side length of 3mm to 8mm, and a rib diameter of 0.8mm to 1.5mm.

6. The pointe shoes with dynamic ventilation and odor removal according to claim 1, characterized in that: The initial volume of the pump chamber is 15mL to 28mL, and when the shoe waist is bent, the volume of the pump chamber is compressed to 40% to 60% of the initial volume.

7. The pointe shoes with dynamic ventilation and odor removal according to claim 1, characterized in that: The odor-eliminating chamber is equipped with a modular box, which is filled with one or more of the following odor-eliminating adsorption materials: activated carbon particles, zeolite particles, molecular sieve particles, or diatomaceous earth particles. The outlet of the second one-way air inlet channel is connected to the modular box, and the modular box is equipped with a plurality of exhaust holes.

8. The pointe shoes with dynamic ventilation and odor removal according to claim 1, characterized in that: The outer port of the one-way exhaust channel is covered with a waterproof and breathable membrane, which is an expanded polytetrafluoroethylene waterproof and breathable membrane with a moisture permeability ≥5000g / m²·24h and a hydrostatic pressure ≥10000mmH2O.

9. The pointe shoes with dynamic ventilation and odor removal according to claim 1, characterized in that: The ventilation and odor removal component is fixed on the inner lining layer, and the outer port of the one-way exhaust channel of the ventilation and odor removal component is detachably and sealedly connected to the shoe body.

10. A method for deodorizing and ventilating pointe shoes, employing pointe shoes with dynamic ventilation and odor removal as described in any one of claims 1-9, characterized in that: Includes the following steps: S1. Air Conduction: When dancers wear pointe shoes for training or performance, the hot and humid sweat generated in the toes and forefoot areas is collected by the air conduction ring set around the perimeter of the sole inside the shoe. S2, Flexing Pump: When the dancer transitions from a flat-footed position to a semi-pointe or pointe position, the shoe waist bends. The pump chamber located between the lining and the sole plate at the shoe waist is compressed and undergoes elastic bending deformation, reducing the volume of the pump chamber and increasing the air pressure inside the chamber. The gas in the pump chamber enters the deodorizing chamber for filtration through the second one-way air intake channel. The deodorizing chamber filters and adsorbs odor substances from the gas drawn in by the pump chamber and discharges the airflow through the one-way exhaust channel. When the dancer returns from a toe or half-toe position to a flat position, the elastic rebound of the air pump chamber increases the volume of the air pump chamber and creates negative pressure inside the chamber, drawing the hot and humid gas inside the shoe body into the air pump chamber through the air guide ring. S3. Targeted purification and emission: The hot and humid gas discharged from the pump chamber in step S2 is forced to pass through the adsorption material in the deodorizing chamber to adsorb and filter the odor molecules and residual moisture in the airflow. The filtered gas is discharged to the outside of the shoe through a one-way exhaust channel. During the dancer's toe movements, the air is continuously circulated to achieve dehumidification and deodorization.

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