CN112790469A - Breathable sole and air inlet method in shoe - Google Patents
Breathable sole and air inlet method in shoe Download PDFInfo
- Publication number
- CN112790469A CN112790469A CN202110168365.5A CN202110168365A CN112790469A CN 112790469 A CN112790469 A CN 112790469A CN 202110168365 A CN202110168365 A CN 202110168365A CN 112790469 A CN112790469 A CN 112790469A
- Authority
- CN
- China
- Prior art keywords
- channel
- air
- sole
- airflow
- insole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/06—Footwear with health or hygienic arrangements ventilated
- A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
- A43B7/084—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures characterised by the location of the holes
- A43B7/087—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures characterised by the location of the holes in the bottom of the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention relates to the technical field of breathable shoes, in particular to a breathable sole and an air inlet method in the shoe. The sole comprises a middle sole and a lower sole, wherein the lower surface of the middle sole is provided with an air inlet channel, an air chamber, a one-way airflow channel and an airflow dispersion channel, and the air chamber is arranged at the position of a heel; the air inlet channel is connected to the rear end of the air bin; the airflow dispersing channel is arranged at the position of the shoe heel, and a plurality of air outlet holes are formed in the airflow dispersing channel; the one-way airflow channel is provided with a Tesla valve structure, one end of the one-way airflow channel is connected to the front end of the air bin, the other end of the one-way airflow channel is connected to the airflow dispersion channel, and the one-way airflow channel is in a high resistance direction from the airflow dispersion channel to the air bin; the upper surface of the lower sole is hermetically bonded with the lower surface of the middle sole. The one-way airflow channel adopting the Tesla valve structure has no movable part inside, long service life and high reliability; simple manufacturing process, high efficiency and low cost.
Description
Technical Field
The invention relates to the technical field of breathable shoes, in particular to a breathable sole and an air inlet method in the shoe.
Background
The shoes are commonly used wearing articles in daily life, the traditional sports shoes generally improve the air permeability in the shoes by changing the shoe material fabrics, but because the sole sweating mainly occurs at the sole, the effect of improving the air permeability by changing the shoe material fabrics is limited.
In order to solve the problems, the chinese patent with the publication number of CN 100423663C discloses a polyurethane upper-connecting injection molding health care shoe with ventilation and perspiration functions, which comprises an upper, an insole, a midsole and a polyurethane outsole, wherein the upper and the outsole are molded into a whole, and the shoe is characterized in that: the shoe is characterized in that an air bag storage cavity is formed in the heel part of the polyurethane outsole, the air bag is arranged in the air bag storage cavity, a ventilation through hole is formed in the front sole part of the insole, the insole is arranged between the insole and the outsole, a communication air passage and an air inlet one-way valve are arranged on the insole, a pressing hole for protruding the air bag is formed in the heel part of the insole, the inner cavity of the shoe is communicated with the air bag through the ventilation hole, the communication air passage and the air inlet one-way valve in the insole, an exhaust hole for communicating the air bag with the outside is formed in the heel part.
The flow direction of the air flow of the existing ventilation shoes mainly depends on a one-way valve, the existing one-way valve realizes the opening and closing of an air valve through the arrangement of a moving part inside, and the existing ventilation shoes perform one-time exhaust every time the existing ventilation shoes are stepped on, so the action frequency of the one-way valve is higher, and in the movement of running and the like, the one-way valve can bear high-frequency and large load, and the moving part in the one-way valve is easy to age and lose efficacy; the sole produces the raise dust with ground contact, and inevitable have in a small amount of dust, moisture enter into the check valve, the check valve inner space is narrow and small, and the card that the moving part then can take place is dead in the very little dust entering, and then leads to the check valve inefficacy. Because of the reliability problem, the popularization of the existing ventilation shoes is greatly hindered.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a breathable sole and an air inlet method in the sole.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a breathable sole, characterized in that: the shoe heel comprises a middle sole and a lower sole, wherein the lower surface of the middle sole is provided with an air inlet channel, an air bin, a one-way airflow channel and an airflow dispersion channel which are formed by inwards sinking, the air bin is arranged at the position of a shoe heel, and the air bin is provided with a dome structure which is gradually deepened inwards from the outer edge to the middle part; one end of the air inlet channel is connected to the rear end of the air bin, and the other end of the air inlet channel is provided with an air inlet hole penetrating through the upper surface of the middle bottom; the airflow dispersion channel is arranged at the position of the shoe heel, and a plurality of air outlet holes penetrating through the upper surface of the insole are formed in the airflow dispersion channel; the one-way airflow channel is provided with a Tesla valve structure, one end of the one-way airflow channel is connected to the front end of the air bin, the other end of the one-way airflow channel is connected to the airflow dispersion channel, and the one-way airflow channel is in a high resistance direction from the airflow dispersion channel to the air bin; the upper surface of the lower bottom is hermetically bonded with the lower surface of the middle bottom so as to seal the air bin, the air inlet channel, the one-way airflow channel and the airflow dispersion channel.
Furthermore, the insole is made of high-resilience materials, a step edge formed by inwards sinking the lower surface of the insole is arranged on the periphery of the air bin, an inwards sunk rear communication gap is formed at the rear end of the step edge, the rear communication gap is communicated with the air inlet channel and the air bin, and the insole is extruded at the heel part to enable the rear communication gap to deform to form a closed state; the step is formed with inside sunken preceding intercommunication breach along the front end, preceding intercommunication breach intercommunication one-way airflow channel and gas storehouse, and preceding intercommunication breach both sides have the face of expanding outward, and this outer face of expanding makes the open state that can keep preceding intercommunication breach when the insole is deformed.
Furthermore, the upper surface of the lower bottom is provided with an embedded block protruding outwards, the embedded block corresponds to the air chamber in position, the embedded block is embedded into the step edge, the upper surface of the lower bottom and the lower surface of the middle bottom are bonded in a sealing mode through hot melting or gluing, and the top surface of the embedded block is not in adhesive tight contact with the step edge.
Furthermore, the middle sole is integrally formed by foaming ETPU popcorn.
Furthermore, the airflow dispersing channel comprises a plurality of annular channels, each annular channel is gradually enlarged from inside to outside to form a fret layout, and connecting channels which are communicated with each other are arranged among the annular channels.
Furthermore, the insole is provided with a first outward-expanding part protruding towards one side at the heel, the insole is connected with the vamp, the first outward-expanding part is positioned outside the vamp, and the air inlet of the air inlet channel is formed at the first outward-expanding part.
Furthermore, the lower bottom is provided with a second outward expanding part corresponding to the first outward expanding part of the middle sole.
The shoe pad is arranged on the upper surface of the insole, a through hole which is communicated up and down is formed in the sole position of the insole, the through hole corresponds to the position of the airflow dispersion channel, and a breathable mesh fabric layer is arranged in the through hole.
An air inlet method in a shoe is characterized in that: a breathable sole for shoes, according to any one of the preceding claims, comprising:
firstly, when walking, the heel touches the ground firstly, the insole is extruded at the first position of the rear part of the heel to generate deformation, and the deformation enables the position of the rear communication gap to form a closed state;
step two, with the walking action, the heel continues to apply force, at the moment, the air chamber of the insole is extruded to deform, the space in the air chamber is reduced, and because the rear communication gap is closed, the air in the air chamber is discharged from the front communication gap and enters the one-way airflow channel, and the two sides of the front communication gap are provided with outward-expanding surfaces, so that the front communication gap is not closed due to the deformation of the insole;
step three, air enters the airflow dispersion channel through the one-way airflow channel and then upwards enters the space in the shoe from each air outlet;
step four, along with the walking action, the heel is lifted, the insole is elastically restored at the rear part of the heel, the rear communication gap is opened, the space in the air bin is expanded, negative pressure is generated, and because the direction from the airflow dispersion channel to the air bin is a high-resistance direction, the airflow is difficult to reversely enter the air bin from the front communication gap, and the outside air enters the air inlet channel from the air inlet and enters the air bin from the rear communication gap;
and (4) walking, namely, repeating the step one to the step four, so that the outside air continuously enters the space in the shoe.
From the above description of the invention, compared with the prior art, the breathable sole and the air inlet method in the shoe provided by the invention adopt the one-way airflow channel with the Tesla valve structure, realize the unidirectional airflow flow by utilizing the principle that airflow distribution is mutually counteracted, have no movable part inside, and have long service life and high reliability; the middle sole and the lower sole can be integrally formed by foaming, and the two parts are bonded, so that the manufacturing process is simple, the efficiency is high, and the cost is low; the air inlet channel is connected to the rear end of the air bin, adapts to the walking state of a user, can firstly seal the rear communication gap when the heel touches the ground, and can open the rear communication gap when the heel is lifted; the front communication gap is provided with an outward-expanding surface, so that the front communication gap can be ensured to be always kept in an open state; fresh air can be continuously introduced into the sole of the shoe during walking, so that the ventilation and coolness in the shoe are ensured, and the problem of foot sealing is avoided.
Drawings
FIG. 1 is a bottom view of the present invention.
Fig. 2 is a schematic view of a breathable sole structure according to the invention.
Fig. 3 is a schematic view of an exploded structure of a breathable sole of the present invention.
Fig. 4 is a schematic view of an exploded structure of a breathable sole of the present invention.
The labels in the figure correspond to the following: 1. the air inlet structure comprises a middle sole, 11 air inlet channels, 111 air inlet holes, 12 air bins, 121 step edges, 122 rear communication gaps, 123 front communication gaps, 1231 outer expanding surfaces, 13 one-way air flow channels, 14 air flow dispersing channels, 141 annular channels, 142 connecting channels, 143 air outlet holes, 15 first outer expanding parts, 2 lower bottoms, 21 insert blocks, 22 second outer expanding parts, 3 insoles, 31 penetrating openings and 32 air permeable mesh layers.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 4, a breathable sole for shoes comprises a midsole 1, a lower sole 2 and an insole 3.
The insole 1 is made of high-resilience materials, if ETPU popcorn is adopted for foaming and integral forming, the lower surface of the insole 1 is provided with an air inlet channel 11, an air bin 12, a one-way air flow channel 13 and an air flow dispersing channel 14 which are formed by inwards sinking, the air bin 12 is arranged at the position of a heel, and the air bin 12 is provided with a dome structure which is gradually deepened inwards from the outer edge to the middle part; the gas chamber 12 periphery is equipped with the step edge 121 that is formed by the inside sunken formation of insole 1 lower surface, and the step is formed with inside sunken back intercommunication breach 122 along 121 rear end, and insole 1 receives extrusion can make back intercommunication breach 122 department deformation formation closed condition in heel department, and the step is formed with inside sunken preceding intercommunication breach 123 along 121 front end, and preceding intercommunication breach 123 both sides have outer face 1231 that expands, should expand face 1231 outward and make the open state that can keep preceding intercommunication breach 123 when insole 1 deformation.
One end of the air inlet channel 11 is connected to the rear end position of the air bin 12 and communicated into the air bin 12 from the rear communication notch 122, and the other end is provided with an air inlet hole 111 penetrating through the upper surface of the insole 1; the airflow dispersing channel 14 is arranged at the position of the sole, the airflow dispersing channel 14 comprises a plurality of annular channels 141, each annular channel 141 is gradually enlarged from inside to outside to form a fret layout, connecting channels 142 which are communicated with each other are arranged among the annular channels 141, and a plurality of air outlets 143 which penetrate through the upper surface of the insole 1 are uniformly distributed along the annular channels 141 of the airflow dispersing channel 14;
the one-way airflow channel 13 has a Tesla valve structure, one end of the one-way airflow channel 13 is connected to the front end position of the air bin 12 and communicated to the inside of the air bin 12 from the front communication notch 123, the other end is connected to the airflow dispersion channel 14, and the one-way airflow channel 13 is in a high resistance direction in the direction from the airflow dispersion channel 14 to the air bin 12;
the upper surface of the lower sole 2 is provided with an insert 21 protruding outwards, the insert 21 corresponds to the position of the air chamber 12, the insert 21 is embedded into the step edge 121, the upper surface of the lower sole 2 and the lower surface of the middle sole 1 are bonded in a sealing manner through hot melting or gluing, the air chamber 12, the air inlet channel 11, the one-way airflow channel 13 and the airflow dispersion channel 14 are sealed in the air chamber, and the top surface of the insert 21 is not bonded with the step edge 121 in a tight contact manner.
The middle sole 1 is provided with a first outward expanding part 15 protruding towards one side at the heel, when the middle sole 1 is connected with the vamp, the first outward expanding part 15 is positioned outside the vamp, the air inlet hole 111 of the air inlet channel 11 is formed at the first outward expanding part 15, and the lower bottom 2 is provided with a second outward expanding part 22 corresponding to the first outward expanding part 15 of the middle sole 1;
A breathable shoe comprises the breathable sole, and the principle of the breathable shoe is an air inlet method in the shoe, which specifically comprises the following steps:
step one, when walking, the heel touches the ground first, the insole 1 is extruded at the first position of the rear part of the heel to generate deformation, and the deformation enables the rear communication gap 122 to form a closed state;
step two, with the walking action, the heel continues to apply force, at the moment, the air chamber 12 of the insole 1 is extruded to deform, the space in the air chamber 12 is reduced, and because the rear communication notch 122 is closed, the air in the air chamber 12 is discharged from the front communication notch 123 and enters the one-way airflow channel 13, and the outer expanding surfaces 1231 are arranged on the two sides of the front communication notch 123, so that the front communication notch 123 cannot be closed due to the deformation of the insole 1, and the front communication notch 123 is always in an open state;
thirdly, air enters the airflow dispersing channel 14 through the one-way airflow channel 13, enters each annular channel 141 through the connecting channel 142, then enters the space in the shoe through the breathable net part 32 layer of the insole 3 from each air outlet 143 upwards, and the position corresponds to the bottom of the sole of the foot, so that air is blown to the sole to dissipate heat and moisture;
step four, with the walking action, the heel is lifted, the insole 1 is elastically restored at the rear part of the heel, the rear communication notch 122 is opened, the space in the air bin 12 is expanded, negative pressure is generated, and because the direction from the airflow dispersing channel 14 to the air bin 12 of the unidirectional airflow channel 13 is in a high resistance direction, airflow is difficult to reversely enter the air bin 12 from the front communication notch 123, and outside air enters the air inlet channel 11 from the air inlet hole 111 and enters the air bin 12 from the rear communication notch 122;
and (4) repeating the first step to the fourth step during walking, so that the outside air continuously enters the space in the shoe, and fresh air is continuously introduced into the shoe, thereby avoiding the problem of foot covering.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (9)
1. A breathable sole, characterized in that: the shoe heel comprises a middle sole and a lower sole, wherein the lower surface of the middle sole is provided with an air inlet channel, an air bin, a one-way airflow channel and an airflow dispersion channel which are formed by inwards sinking, the air bin is arranged at the position of a shoe heel, and the air bin is provided with a dome structure which is gradually deepened inwards from the outer edge to the middle part; one end of the air inlet channel is connected to the rear end of the air bin, and the other end of the air inlet channel is provided with an air inlet hole penetrating through the upper surface of the middle bottom; the airflow dispersion channel is arranged at the position of the shoe heel, and a plurality of air outlet holes penetrating through the upper surface of the insole are formed in the airflow dispersion channel; the one-way airflow channel is provided with a Tesla valve structure, one end of the one-way airflow channel is connected to the front end of the air bin, the other end of the one-way airflow channel is connected to the airflow dispersion channel, and the one-way airflow channel is in a high resistance direction from the airflow dispersion channel to the air bin; the upper surface of the lower bottom is hermetically bonded with the lower surface of the middle bottom so as to seal the air bin, the air inlet channel, the one-way airflow channel and the airflow dispersion channel.
2. The breathable sole for shoes according to claim 1, characterized in that: the insole is made of high-resilience materials, a step edge formed by inwards sinking the lower surface of the insole is arranged on the periphery of the air bin, an inwards sinking rear communication gap is formed at the rear end of the step edge, the rear communication gap is communicated with the air inlet channel and the air bin, and the insole is extruded at the heel part to enable the rear communication gap to deform to form a closed state; the step is formed with inside sunken preceding intercommunication breach along the front end, preceding intercommunication breach intercommunication one-way airflow channel and gas storehouse, and preceding intercommunication breach both sides have the face of expanding outward, and this outer face of expanding makes the open state that can keep preceding intercommunication breach when the insole is deformed.
3. The breathable sole for shoes according to claim 2, characterized in that: the lower sole upper surface is equipped with the abaculus that bulges outward, the abaculus corresponds with the gas storehouse position, and the abaculus inlays and establishes into the step and follows upward, the upper surface of lower sole and insole lower surface realize airtight bonding through hot melt or gluing, and there is not adhesive contact of laminating between abaculus top surface and step edge.
4. The breathable sole for shoes according to claim 2, characterized in that: the insole is integrally formed by foaming ETPU popcorn.
5. The breathable sole for shoes according to claim 1, characterized in that: the airflow dispersing channel comprises a plurality of annular channels, each annular channel is gradually enlarged from inside to outside to form a fret layout, and connecting channels which are communicated with each other are arranged among the annular channels.
6. The breathable sole for shoes according to claim 1, characterized in that: the insole is provided with a first outward-expanding part protruding towards one side at the heel, the first outward-expanding part is positioned outside the vamp when the insole is connected with the vamp, and the air inlet of the air inlet channel is formed at the first outward-expanding part.
7. The breathable sole for shoes according to claim 6, characterized in that: the lower bottom is provided with a second outward expansion part corresponding to the first outward expansion part of the middle sole.
8. The breathable sole for shoes according to claim 1, characterized in that: the shoe pad is arranged on the upper surface of the insole, a through hole which is communicated up and down is arranged at the sole position of the shoe pad, the through hole corresponds to the position of the airflow dispersion channel, and a breathable mesh fabric layer is arranged in the through hole.
9. An air inlet method in a shoe is characterized in that: a breathable sole for shoes according to any one of claims 1 to 8, comprising:
firstly, when walking, the heel touches the ground firstly, the insole is extruded at the first position of the rear part of the heel to generate deformation, and the deformation enables the position of the rear communication gap to form a closed state;
step two, with the walking action, the heel continues to apply force, at the moment, the air chamber of the insole is extruded to deform, the space in the air chamber is reduced, and because the rear communication gap is closed, the air in the air chamber is discharged from the front communication gap and enters the one-way airflow channel, and the two sides of the front communication gap are provided with outward-expanding surfaces, so that the front communication gap is not closed due to the deformation of the insole;
step three, air enters the airflow dispersion channel through the one-way airflow channel and then upwards enters the space in the shoe from each air outlet;
step four, along with the walking action, the heel is lifted, the insole is elastically restored at the rear part of the heel, the rear communication gap is opened, the space in the air bin is expanded, negative pressure is generated, and because the direction from the airflow dispersion channel to the air bin is a high-resistance direction, the airflow is difficult to reversely enter the air bin from the front communication gap, and the outside air enters the air inlet channel from the air inlet and enters the air bin from the rear communication gap;
and (4) walking, namely, repeating the step one to the step four, so that the outside air continuously enters the space in the shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168365.5A CN112790469A (en) | 2021-02-07 | 2021-02-07 | Breathable sole and air inlet method in shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168365.5A CN112790469A (en) | 2021-02-07 | 2021-02-07 | Breathable sole and air inlet method in shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112790469A true CN112790469A (en) | 2021-05-14 |
Family
ID=75814649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110168365.5A Pending CN112790469A (en) | 2021-02-07 | 2021-02-07 | Breathable sole and air inlet method in shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112790469A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166972A1 (en) * | 2021-02-07 | 2022-08-11 | 鲸动科技(莆田)有限公司 | Exhaust sole and in-shoe exhaust method |
| CN115367290A (en) * | 2022-08-12 | 2022-11-22 | 长城信息股份有限公司 | Leakage-proof shock-absorbing inflatable packaging bag |
| US11930875B2 (en) | 2021-07-12 | 2024-03-19 | John Hooman Kasraei | Impact reduction system for personal protective devices |
-
2021
- 2021-02-07 CN CN202110168365.5A patent/CN112790469A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166972A1 (en) * | 2021-02-07 | 2022-08-11 | 鲸动科技(莆田)有限公司 | Exhaust sole and in-shoe exhaust method |
| US11930875B2 (en) | 2021-07-12 | 2024-03-19 | John Hooman Kasraei | Impact reduction system for personal protective devices |
| CN115367290A (en) * | 2022-08-12 | 2022-11-22 | 长城信息股份有限公司 | Leakage-proof shock-absorbing inflatable packaging bag |
| CN115367290B (en) * | 2022-08-12 | 2023-12-19 | 长城信息股份有限公司 | Leak-proof shock-absorbing inflatable packaging bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112790469A (en) | Breathable sole and air inlet method in shoe | |
| CN112826174A (en) | Exhaust sole and exhaust method in shoe | |
| CN106666922B (en) | Shoe, sole assembly for a shoe, method for manufacturing a sole assembly and method for manufacturing a shoe | |
| CN101291601B (en) | Fluid system having multiple pump chambers | |
| CN101291796B (en) | Fluid system having an expandable pump chamber | |
| CN103327842B (en) | Waterproof, breathable shoe and method for manufacturing a shoe | |
| US7051456B2 (en) | Article of footwear incorporating an inflatable chamber | |
| US3475836A (en) | Air pumping insert for shoes | |
| CN103079417A (en) | Upper for shoes with perforated sole to be mounted on ventilated or perspirating bottoms | |
| CN103338669A (en) | Method for manufacturing a sole assembly and for manufacturing a shoe | |
| US20120210604A1 (en) | Waterproof and vapor-permeable sole for shoes and shoe provided with said sole | |
| CN101309609A (en) | Article of footwear with a sole structure having fluid-filled support elements | |
| KR101659282B1 (en) | Shoe insole, shoe having the same | |
| CN214283586U (en) | Breathable sole | |
| CN214283603U (en) | Air-exhausting shoe sole | |
| US6205680B1 (en) | Self-ventilating footwear | |
| CN219069600U (en) | Exhaust sole | |
| CN112617349B (en) | Damping sole, manufacturing method of damping sole and damping shoe | |
| KR101141181B1 (en) | Sole of multiple cushion shoe that ventilation is possible | |
| CN210018045U (en) | Ventilated cooling shoes | |
| CN219556465U (en) | Extended-range type exhaust sole | |
| CN113208229A (en) | Shoes with inside and outside circulation removes sweat function | |
| CN217986822U (en) | Multiple exhaust sole | |
| CN217986823U (en) | One-way air guide sole | |
| CN217509990U (en) | Air-exhausting shoe sole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |