CN109198796B

CN109198796B - Pneumatic fixing device for shoes

Info

Publication number: CN109198796B
Application number: CN201710533234.6A
Authority: CN
Inventors: 莫皓然; 莫立邦; 陈世昌; 韩永隆; 李伟铭
Original assignee: Microjet Technology Co Ltd
Current assignee: Microjet Technology Co Ltd
Priority date: 2017-07-03
Filing date: 2017-07-03
Publication date: 2021-03-05
Anticipated expiration: 2037-07-03
Also published as: CN109198796A

Abstract

An air pressure fixing device for shoes is suitable for a shoe and comprises an inflatable shoe tongue, a first air pump, a weight sensor and a control module. The control module controls the gas to be led out from the inflatable tongue according to the second enabling signal, so that the inflatable tongue is retracted inwards, and the foot of the user is fixed in the shoe; the control module drives the first gas pump to actuate according to the first enabling signal, so that gas is introduced into the inflatable tongue, the inflatable tongue is filled with the gas to expand and protrudes outwards, and the opening is enlarged, and a user can conveniently put on or take off the shoe.

Description

Pneumatic fixing device for shoes

Technical Field

The present invention relates to a pneumatic fixing device for shoes, and more particularly to a pneumatic fixing device for shoes inflated by a gas pump.

Background

In general, most of the conventional footwear uses a shoelace as a tool for loosening and fixing the foot, however, the footwear having the shoelace has many inconveniences in wearing. For example, when the shoelace is pulled off during the wearing process, the shoelace must be tied again to continue the activity, which causes inconvenience and waste of time. Furthermore, there is a potential risk associated with wearing footwear having laces. For example, when the shoelace is inadvertently loosened, it is easy to cause another person to step on the shoelace and cause tripping, and may be caught in a gap of an escalator, a bicycle chain or a motorcycle foot peg, etc., which may cause accidents. In addition, long-term wearing of footwear with laces tends to apply excessive pressure to the foot, resulting in discomfort to the wearer.

A small portion of conventional footwear is otherwise used as a means for loosely binding and securing the foot, such as: the magic felt or sock type shoe body is not enough in fixity and easy to fall off, the felt viscosity of the magic felt is reduced after long-time use, so that the magic felt or sock type shoe body is inconvenient to move and is not suitable for being worn during sports. The sock-type shoe body is not enough in fixation on the foot, tightness adjustment cannot be performed according to requirements, and the sock-type shoe body is easy to loosen after long-time use, so that the requirement for fixing the foot cannot be met.

On the other hand, the size of the opening of a conventional shoe is designed mainly according to the functionality thereof, for example, the opening of a sports shoe is usually designed to be small so as to provide better covering performance and avoid falling off during sports, however, the design with the small opening often causes the foot of a user to be difficult to penetrate into the shoe, and if the opening is spread by applying force so as to facilitate penetration, the opening is loosened so as to lose the covering protection effect; for example, casual shoes are usually designed with a large opening for a user to wear, but such a large opening often causes the user's foot to easily fall off the shoe and the risk of injury to the user's foot or damage to the shoe.

In view of the above, how to develop an air pressure fixing device for shoes that can automatically adjust the size of the shoe opening and comfortably wrap and fix the foot is a problem that needs to be solved.

Disclosure of Invention

The present invention is directed to an air pressure fixing device for shoes, which can automatically adjust the size of the opening of the shoe and comfortably cover and fix the foot, so as to achieve the effects of conveniently wearing and taking off the shoe and fixing the foot when the shoe is worn. To achieve the above objects, a broad aspect of the present invention is an air pressure fixing device for shoes, which is suitable for a shoe, the shoe includes a shoe body and a bottom, the shoe body includes a plurality of lace holes, the shoe body is connected to the bottom to define a wearing space, the air pressure fixing device for shoes includes: the inflatable shoe tongue is of an inflatable expansion structure, and the inflatable shoe tongue and the shoe body jointly define an opening which is communicated with the penetrating space; the first air pump is communicated with the inflatable shoe tongue; the control module is electrically connected with the first gas pump; the control module controls gas to be led out from the inflatable tongue according to a second enabling signal, so that the inflatable tongue retracts towards the direction close to the wearing space to fit the instep of a user; the control module drives the first gas pump to actuate according to a first enabling signal, so that gas is introduced into the inflatable tongue, the inflatable tongue is inflated to expand and protrudes in a direction away from the penetrating space, and the opening is enlarged.

Drawings

FIG. 1 is a schematic view of the pneumatic fixing device for shoes according to the preferred embodiment of the present invention.

FIG. 2 is a disassembled view of the structure of the sneaker according to the preferred embodiment of the present invention.

FIG. 3 is a schematic view of the pneumatic shoelace of the pneumatic fastening device for shoes according to the preferred embodiment of the present invention.

Fig. 4A is a schematic view illustrating an initial state of lace portions of the pneumatic lace according to the first embodiment of the present invention.

FIG. 4B is a disassembled view of the lace parts of the pneumatic lace of FIG. 4A.

FIG. 4C is an inflated schematic view of the lace portions of the inflated shoelace of FIG. 4A.

FIG. 4D is a view illustrating an initial state of the lacing part of the lace part of the pneumatic lace according to the second embodiment of the present invention.

FIG. 4E is an inflated schematic view of the lacing portion of the lace portion of the inflated shoelace of FIG. 4D.

FIG. 4F is a schematic view showing an initial state of the lacing parts of the lace parts of the pneumatic shoelace according to the third embodiment of the present invention.

FIG. 4G is an inflated schematic view of the lacing portion of the lace portion of the inflated shoelace of FIG. 4F.

FIG. 4H is a view illustrating an initial state of the lacing parts of the lace parts of the pneumatic lace according to the fourth preferred embodiment of the present invention.

FIG. 4I is an inflated schematic view of the lacing portion of the lace portion of the inflated shoelace of FIG. 4H.

FIG. 4J is a view illustrating an initial state of the lacing parts of the lace parts of the pneumatic lace according to the fifth preferred embodiment of the present invention.

FIG. 4K is an inflated schematic view of the lacing portion of the lace portion of the inflated shoelace of FIG. 4J.

Fig. 5A is a schematic cross-sectional AA view of the inflatable tongue of fig. 2.

Fig. 5B is a schematic view of the inflation of the inflatable tongue of fig. 5A.

FIG. 6A is a cross-sectional view of an inflatable tongue, in accordance with a preferred embodiment of the present invention.

FIG. 6B is a schematic view of the outer bladder inflation of the inflatable tongue of FIG. 6A.

FIG. 6C is a schematic view of the inflation of the inner bladder of the inflatable tongue of FIG. 6A.

FIG. 7A is a schematic view of the pneumatic fixing device for shoes according to the preferred embodiment of the present invention.

FIG. 7B is a schematic view of the pneumatic fixing device for shoes according to another preferred embodiment of the present invention.

FIG. 8 is a schematic view showing the air flow direction of the air pressure fixing device for shoes according to the preferred embodiment of the present invention.

Fig. 9A is a cross-sectional view of the initial state of the footwear according to the preferred embodiment of the present invention.

FIG. 9B is a cross-sectional view of the preferred embodiment of the present invention showing the state of wearing the sneaker.

Fig. 10A and 10B are exploded schematic views of a gas pump at different viewing angles according to a preferred embodiment of the invention.

Fig. 11A is a schematic front view of the piezoelectric actuator shown in fig. 1A and 10B.

Fig. 11B is a schematic back structure diagram of the piezoelectric actuator shown in fig. 1A and 10B.

Fig. 11C is a schematic cross-sectional view of the piezoelectric actuator shown in fig. 1A and 10B.

Fig. 12 is a schematic cross-sectional view of the gas pump shown in fig. 1A and 10B.

Fig. 13A to 13D are flow chart diagrams illustrating the operation of the gas pump shown in fig. 1A and 10B.

Fig. 14A and 14B are exploded schematic views of a gas pump at different viewing angles according to another preferred embodiment of the present invention.

[ notation ] to show

1: pneumatic fixing device for shoes

10: inflatable shoelace

10 a: tying part

10 b: connecting part

10 e: through hole

10 f: expansion part

10 g: communicating part

10 h: voids

10 i: outer layer

11: inflatable shoe tongue

11a, 111a, 112 a: bump

11b, 111b, 112 b: gap

11c, 111 c: outside surface

111: external airbag

112: inner air bag

112 c: inside surface

113: two-way valve

12: first gas pump

12': second gas pump

121: air inlet plate

121 a: first surface

121 b: second surface

1210: air intake

1211: central concave part

1212: bus hole

122: resonance sheet

1220: hollow hole

123: piezoelectric actuator

1231: suspension plate

1231 a: first surface

1231 b: second surface

1231 c: center part

1231 d: outer peripheral portion

1231 e: convex part

1232: outer frame

1232 a: support frame

1232 a': first surface

1232a ": second surface

1232 b: conductive pin

1232 c: first surface

1232 d: second surface

1233: piezoelectric component

1234: voids

1241. 1242: insulating sheet

125: conductive sheet

1251: conductive pin

126: cover plate

126 a: containing space

1261: side wall

1262: base plate

1263: opening part

127 a: confluence chamber

127 b: the first chamber

128: colloid

13 a: first gas channel

13 b: second gas channel

14: air bag part

15: control module

16: battery with a battery cell

17: switch with a switch body

17': pressure sensor

2: ball shoes

21: shoe body

21 a: shoelace hole

22: bottom part

22 a: shoe-pad

22 b: sole of shoe

23: insertion space

24: opening of the container

Detailed Description

Some exemplary embodiments that embody features and advantages of the invention will be described in detail in the description that follows. It is to be understood that the invention is capable of modification in various respects, all without departing from the scope of the present invention, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an air pressure fixing device for shoes according to a preferred embodiment of the present invention, and fig. 2 is a schematic structural view of a disassembled sneaker according to a preferred embodiment of the present invention. As shown in FIG. 1, the pneumatic fixing device 1 for shoes of the present invention is applicable to various kinds of shoes, for example: shoes, sandals, high-heeled shoes, etc., but not limited thereto. The pneumatic fixing device 1 for shoes of the present embodiment is described as applied to a ball shoe 2, and the ball shoe 2 includes a shoe body 21 and a sole 22. As shown in fig. 2, the shoe body 21 includes a plurality of lace holes 21a for various laces to be inserted therein, the bottom 22 further includes a shoe pad 22a and a sole 22b, wherein the shoe body 21 is connected with the sole 22b of the bottom 22 and defines a insertion space 23, the shoe pad 22a is correspondingly disposed in the insertion space 23 and connected with the sole 22b, so that the shape of the shoe pad 22a is substantially the same as that of the sole 22b, but the outline thereof is slightly smaller than that of the sole 22b, and the appearance shape, thickness, etc. of the shoe pad 22a and the sole 22b can be arbitrarily changed according to actual implementation.

Referring to fig. 1 and fig. 2, in the present embodiment, the pneumatic fixing device 1 for shoes of the present invention includes an inflating shoelace 10, an inflating tongue 11, a first air pump 12, a second air pump 12', an air bag portion 14, a control module 15 and a battery 16, but not limited thereto. Wherein, the inflatable tongue 11 is connected with the shoe body 21 and defines an opening 24 with the shoe body 21, the foot of the user can be inserted into or separated from the sneaker 2 through the opening 24 of the shoe body 21, and when the foot of the user is inserted into the sneaker 2 through the opening 24, the foot can be accommodated in the wearing space 23; the air bag portion 14 is attached to the inflatable tongue 11 adjacent to one side of the inflatable tongue 11 and communicates with the inflatable tongue 11, and the inflatable shoelace 10 is attached to the inflatable tongue 11 adjacent to the other side of the inflatable tongue 11, but not limited thereto. The first gas pump 12 of the present embodiment is a unidirectional gas pump, but not limited thereto. The control module 15 and the battery 16 of the present embodiment are disposed between the insole 22a and the sole 22b of the bottom 22, wherein the control module 15 is electrically connected to the first gas pump 12 and the second gas pump 12', and the battery 16 is used for providing electric energy to the control module 15.

Referring to fig. 2 and 3, fig. 3 is a schematic view of an inflatable shoelace of the pneumatic fixing device for shoes according to the preferred embodiment of the present invention. As shown in the drawings, the inflation shoelace 10 of the present embodiment is an inflatable structure and is communicated with the air bag portion 14 through the first air passage 13a and the second air passage 13b for air transmission, the air bag portion 14 is attached to the outer surface of the inflation tongue 11, the inflation shoelace 10 is inserted into a plurality of shoelace holes 21 of the shoelace body 21, the first air passage 13a and the second air passage 13b are respectively communicated between the air bag portion 14 and the inflation shoelace 10, the first air pump 12 is communicated and disposed in the first air passage 13a and electrically connected to the control module 15 for guiding air from the inflation shoelace 10 to the air bag portion 14, so that the inflation shoelace 10 is deflated and loosened to facilitate the user to put on and take off the sneaker 2; the second air pump 12 'is connected to the second air channel 13b, and the second air pump 12' is electrically connected to the control module 15, so as to introduce air from the air bag 14 into the inflatable shoelace 10, so that the air inside the inflatable tongue 11 and the air bag 14 is filled into the inflatable shoelace 10, so that the air is rapidly filled into the inflatable shoelace 10, and the inflatable shoelace 10 is inflated and tightened, so that the air can be completely attached to the upper half of the instep of the user, i.e. the instep and the ankle of the user are connected to form a periphery, so as to stably cover and fix the foot of the user in the sneaker 2, and the two-stage arrangement of the inflatable shoelace 10 and the air bag 14 prevents the shoe body 21 of the sneaker 2 from being bent to press the foot of the user during wearing activities, and achieves the effects of comfort and safety. Therefore, the first air pump 12 and the second air pump 12' are provided to control the air flow between the inflatable shoelace 10 and the inflatable tongue 11, and the air flow can loosen or tighten the inflatable shoelace 10, thereby facilitating the putting on and taking off or fixing firmly.

Referring to fig. 4A and 4B, fig. 4A is a schematic view illustrating an initial state of the pneumatic shoelace according to the first embodiment of the present invention, fig. 4B is a disassembled schematic view of the pneumatic shoelace of fig. 4A, and fig. 4C is a schematic view illustrating an inflation expansion of the pneumatic shoelace of fig. 4A. As shown in fig. 4A, in the first embodiment of the present invention, the pneumatic shoelace 10 further comprises a tying part 10a and a connecting part 10b, and the embodiment is described by using three tying parts 10a and two connecting parts 10b, but not limited thereto, and the number and the arrangement thereof may be changed according to the actual situation. As shown in fig. 4B, in the present embodiment, each of the two ends of each of the tie portions 10a is respectively provided with a through hole 10e, and the surface of the connecting portion 10B is also correspondingly provided with a corresponding through hole (not shown), and the through holes 10e communicate between the tie portions 10a and the connecting portion 10B to realize the gas circulation. When the gas is introduced into the pneumatic shoelace 10, the pneumatic shoelace 10 is inflated, i.e., as shown in fig. 4C, the three fastening portions 10a of the shoelace portion 10b are inflated to contract inward, thereby achieving the effect equivalent to tightening of a conventional shoelace, and since the pneumatic shoelace 10 is in an inflated structure, the flexibility is improved, thereby preventing the discomfort caused by poor flexibility when the conventional shoelace is tightened. When the air is guided out of the inflatable shoelace 10, the inflatable shoelace 10 is deflated and loosened, and returns to the initial state, i.e., as shown in fig. 4A, the three tying parts 10a of the shoelace part 10b are deflated and loosened outward, thereby achieving the effect equivalent to that of a conventional shoelace, and facilitating the putting on and taking off of the shoelace by a user. In addition, in the present embodiment, the pneumatic shoelace 10 is an artificial muscle pneumatic shoelace, which is made of an electroactive polymer, such as: amino acid, an intelligent polymer material, can make the internal structure of the material produce the actions of stretching, bending, tightening or expanding, etc. through the control of electric energy, and has elasticity and softness like biological muscles, and can provide excellent wearing experience of the sneakers through the inflatable tightening or expansion of the artificial muscle inflatable shoelace.

Referring to fig. 4D and 4E together, fig. 4D is a schematic view illustrating an initial state of a tying portion of an inflatable shoelace according to a second embodiment of the present invention, and fig. 4E is a schematic view illustrating inflation of the tying portion of the inflatable shoelace of fig. 4D. As shown in fig. 4D, in the second embodiment of the present invention, the tying portion 10a of the pneumatic shoelace 10 further comprises a plurality of expansion portions 10f, a plurality of connecting portions 10g and two through holes 10e, each connecting portion 10g is connected between each adjacent expansion portion 10f in a manner of being staggered at upper and lower ends thereof, and a plurality of gaps 10h are defined between each expansion portion 10f, so as to form a strip-shaped shoelace structure similar to a plurality of "inverted S-shaped" connections, but not limited thereto; the two through holes 10e are provided at both ends of the tether portion 10a, respectively, but not limited thereto. When the gas is introduced into the pneumatic shoelace 10 through the through holes 10E, the tying parts 10a of the shoelace parts 10b of the pneumatic shoelace 10 are inflated to expand the expansion parts 10f and the communication parts 10g, and compress the areas of the gaps 10h, so that the tying parts 10a are inflated to contract inward, as shown in fig. 4E, thereby achieving the effect equivalent to the tightening of a general shoelace, and fixing the foot of the user. Similarly, when the air is guided out of the inflatable shoelace 10, the tying portion 10a of the inflatable shoelace 10 is deflated and loosened, and returns to the initial state, i.e., as shown in fig. 4D, the tying portion 10a is deflated and loosened, thereby achieving the effect equivalent to that of a conventional shoelace, and facilitating the putting on and taking off of the shoelace by the user.

Referring to fig. 4F and 4G, fig. 4F is a schematic view illustrating an initial state of a tying portion of an inflatable shoelace according to a third embodiment of the present invention, and fig. 4G is a schematic view illustrating inflation of the tying portion of the inflatable shoelace of fig. 4F. As shown in fig. 4F, in the third embodiment of the present invention, the tying portion 10a of the pneumatic shoelace 10 also includes a plurality of expansion portions 10F, a plurality of connecting portions 10g and two through holes 10e, each connecting portion 10g is directly connected between each adjacent expansion portion 10F, and a plurality of gaps 10h are defined between each expansion portion 10F to form a strip-shaped shoelace structure, and the two through holes 10e are located at two sides of the tying portion 10a, but not limited thereto. When the gas is introduced into the pneumatic shoelace 10 through the through holes 10e, the tying parts 10a of the shoelace parts 10b of the pneumatic shoelace 10 are inflated to expand the expansion parts 10f and the communication parts 10G, and compress the areas of the gaps 10h, so that the tying parts 10a are inflated to contract inward, as shown in fig. 4G, thereby achieving the effect equivalent to the tightening of a general shoelace, and fixing the foot of the user. When the air is guided out of the pneumatic shoelace 10, the tying portion 10a of the pneumatic shoelace 10 is deflated and loosened, and returns to the initial state, i.e., as shown in fig. 4F, the tying portion 10a is deflated and loosened, thereby achieving the effect equivalent to the effect of loosening the tying of a common shoelace, and facilitating the user to put on and take off the shoelace.

Referring to fig. 4H and 4I together, fig. 4H is a schematic view illustrating an initial state of a tying portion of an inflatable lace according to a fourth embodiment of the present invention, and fig. 4I is a schematic view illustrating inflation of the tying portion of the inflatable lace of fig. 4H. As shown in fig. 4H, in the fourth embodiment of the present invention, the lacing portion 10a of the pneumatic shoelace 1010 b further comprises two through holes 10e, a plurality of expansion portions 10f, a plurality of communication portions 10g and an outer layer 10i, wherein the expansion portions 10f and the communication portions 10g are disposed in the outer layer 10i, the two through holes 10e are respectively disposed at two ends of the outer layer 10i and are communicated with the expansion portions 10f at two ends through the two through holes 10e for air circulation, each communication portion 10g is connected between each adjacent expansion portion 10f and defines a plurality of gaps 10H between each expansion portion 10f to form a strip-shaped shoelace structure, but not limited thereto. When the air is introduced into the pneumatic shoelace 10 through the through holes 10e, the tying parts 10a of the shoelace parts 10b of the pneumatic shoelace 10 are inflated to expand the expansion parts 10f and the communication parts 10g, and compress the areas of the gaps 10h, so that the tying parts 10a are inflated to contract inward, as shown in fig. 4I, thereby achieving the effect equivalent to the tightening of a general shoelace, and fixing the foot of the user. Similarly, when the air is guided out of the inflatable shoelace 10, the tying portion 10a of the inflatable shoelace 10 is deflated and loosened, and returns to the initial state, i.e., as shown in fig. 4H, the tying portion 10a is deflated and loosened, thereby achieving the effect equivalent to that of a conventional shoelace, and facilitating the putting on and taking off of the shoelace by the user. In some embodiments, the pneumatic shoelace 10 can be used as a sole shoelace instead of a general shoe, and the tying portion 10a of the pneumatic shoelace 10 further comprises an air nozzle 10j, the air nozzle 10j is also connected to the expansion portion 10f through a connecting portion 10g for externally connecting an air inflating device, such as: air pumps, etc.

Referring to fig. 4J and 4K together, fig. 4J is a schematic view illustrating an initial state of a tying portion of an inflatable shoelace according to a fifth embodiment of the present invention, and fig. 4K is a schematic view illustrating inflation of the tying portion of the inflatable shoelace of fig. 4J. As shown in fig. 4J, in the fifth embodiment of the present invention, the tying portion 10a of the pneumatic shoelace 10 comprises two through holes 10e, a plurality of expansion portions 10f, a plurality of connecting portions 10g and an outer layer 10i, wherein the expansion portions 10f and the connecting portions 10g are disposed in the outer layer 10i, the two through holes 10e are respectively disposed at two ends of the outer layer 10i and are communicated with the expansion portions 10f at two ends through the two through holes 10e for air circulation, and each connecting portion 10g is connected between each adjacent expansion portion 10f and defines a plurality of gaps 10h between each expansion portion 10f to form a strip-shaped shoelace structure, but not limited thereto. When the gas is introduced into the pneumatic shoelace 10, the tying parts 10a of the shoelace parts 10b of the pneumatic shoelace 10 are inflated to expand the expansion parts 10f and the communication parts 10g, and the areas of the gaps 10h are compressed to make the tying parts 10a deflated after being inflated, as shown in fig. 4K, thereby achieving the same effect as the tightening of a general shoelace to fix the foot of the user. Similarly, when the air is guided out of the inflatable shoelace 10, the tying portion 10a of the inflatable shoelace 10 is deflated and loosened, and returns to the initial state, i.e., as shown in fig. 4J, the tying portion 10a is deflated and loosened, thereby achieving the effect equivalent to that of a conventional shoelace, and facilitating the putting on and taking off of the shoelace by the user. In some embodiments, the inflatable shoelace 10 can be used alone to replace conventional shoelaces, i.e. the inflatable tongue 11 can be used alone in various types of footwear, and the tying portion 10a of the inflatable shoelace 10 further comprises an air nozzle 10j, the air nozzle 10j is also connected to the expansion portion 10f through the connecting portion 10g for externally connecting an air inflating device, such as: air pumps, etc.

Referring to fig. 2, 5A and 5B, fig. 5A is a schematic cross-sectional view AA of the inflatable tongue of fig. 2 illustrating inflation, and fig. 5B is a schematic view illustrating an initial state of the inflatable tongue of fig. 5A. As shown in FIG. 2, the inflatable tongue 11 of the present embodiment is an inflatable structure, which is connected to the shoe body 21 and is disposed corresponding to the instep of the user, but not limited thereto. As shown in fig. 5A, the outer side surface 11c of the inflatable tongue 11 is provided with a plurality of protrusions 11a protruding outward, and a gap 11b is formed between each adjacent protrusions 11a, when the air is introduced into the inflatable tongue 11, the inflatable tongue 11 expands due to the inflation, and the protrusions 11a on the outer side surface 11c expand and protrude outward, so that the inflatable tongue 11 protrudes outward away from the wearing space 23, and the opening 24 is enlarged, thereby facilitating the user to wear and take off the sneaker 2; then, as shown in fig. 5B, when the air is guided out of the inflatable tongue 11, the inflatable tongue 11 is deflated to contract inward, and the plurality of protrusions 11a on the outer side surface 11c contract inward, so that the inflatable tongue 11 contracts inward toward the wearing space 23, returning to the initial state of fig. 5B, thereby firmly fixing the user's foot in the sneaker 2.

Referring to fig. 6A to 6C, fig. 6A is a cross-sectional view of an inflatable tongue according to another preferred embodiment of the present invention, fig. 6B is a schematic view of inflation of an outer bladder of the inflatable tongue of fig. 6A, and fig. 6C is a schematic view of inflation of an inner bladder of the inflatable tongue of fig. 6A. As shown in the drawings, in another preferred embodiment of the present invention, the inflatable tongue 11 includes an outer bladder 111, an inner bladder 112 and a two-way valve 113, wherein the outer bladder 111 has a plurality of outwardly protruding protrusions 111a on the outer surface 111c thereof, a gap 111b is formed between each adjacent protrusions 111a, the inner bladder 112 has a plurality of inwardly protruding protrusions 112a on the inner surface 112c thereof, a gap 112b is also formed between each adjacent protrusions 112a, and the two-way valve 113 is a valve structure capable of bi-directionally introducing air, is connected between the outer bladder 111 and the inner bladder 112, and is electrically connected to the control module 15. The plurality of projections 111a for introducing gas into the outer bladder 111 through the two-way valve 113 are expanded to protrude outward, so that the inflatable tongue 11 protrudes outward away from the wearing space 23 to enlarge the opening 24 for the user to wear and take off the sneaker 2; the protrusions 112a for introducing gas into the inner bladder 112 through the two-way valve 113 are expanded to protrude inward so that the inflatable tongue 11 protrudes outward in a direction approaching the wearing space 23 to contract the opening 24 and the wearing space 23 inward, thereby facilitating the stable fixing of the user's foot in the footwear 2. Therefore, the outward or inward protrusion of the inflatable tongue 11 can be controlled by the arrangement of the outer airbag 111, the inner airbag 112 and the two-way valve 113, and the inflatable tongue 11 of the pneumatic fixing device 1 for shoes can be fixed and loosened without the need of a shoelace.

Referring to fig. 7A, 8 and 9B, fig. 7A is a schematic view showing a configuration of an air pressure fixing device for shoes according to a preferred embodiment of the present invention, fig. 8 is a schematic view showing a direction of air flow of the air pressure fixing device for shoes according to the preferred embodiment of the present invention, fig. 9A is a schematic view showing an initial state cross section of a sneaker according to the preferred embodiment of the present invention, and fig. 9B is a schematic view showing a wearing state cross section of the sneaker according to the preferred embodiment of the present invention. Referring to fig. 7A, the pneumatic fixing device 1 for shoes of this embodiment further includes a switch 17, the switch 17 is electrically connected to the control module 15, the switch 17 is operated by a user to control the pneumatic fixing device 1 for shoes, and referring to fig. 7A to 9B, when the foot of the user is inserted into the insertion space 23 of the sneaker 2, the user pulls the switch 17 to open the switch 17, so that the switch 17 sends a second enabling signal to the control module 15, and the control module 15 controls the second gas pump 12' to operate according to the second enabling signal, so that the gas is guided out of the inflatable tongue 11 and the air bag portion 14 to the inflatable shoelace 10, so that the inflatable tongue 11 is retracted toward the insertion space 23, and the inflatable shoelace 10 is inflated and tightened to fit the foot of the user; on the contrary, when the user's foot is about to be separated from the sneaker 2, the switch 17 is turned off by dialing, so that the switch 17 sends a first enabling signal to the control module 15, the control module 15 drives the first gas pump 12 to operate according to the first enabling signal, so that the gas is introduced from the inflatable shoelace 10 into the inflatable tongue 11 and the air bag portion 14, so that the inflatable shoelace 10 is deflated and relaxed, and the inflatable tongue 11 is inflated to expand and protrude outward in a direction away from the wearing space 23, and when the air bag portion 14 is inflated and inflated synchronously, the air bag portion 14 presses down the inflatable tongue 11 and one end adjacent to the air bag portion 14, and lifts up the other end of the inflatable tongue 11, thereby enlarging the opening 24 defined by the inflatable tongue 11 and the sneaker body 21, so as to facilitate the user to wear and separate the sneaker 2 (as shown in fig. 9A), furthermore, the switch 17 of the present embodiment may be disposed on the sneake.

In addition, referring to fig. 7B, fig. 7B is a schematic view of an air pressure fixing device for shoes according to another preferred embodiment of the present invention. As shown in the drawings, the pneumatic fixing device 1 for shoes of the present invention further comprises a pressure sensor 17 ', the pressure sensor 17 ' is electrically connected to the control module 15, in this embodiment, the pressure sensor 17 ' can be disposed on the bottom 22 of the shoe 2, but not limited thereto, when the user's foot is put on the putting on space 23 of the ball shoe 2, after the pressure sensor 17' senses a pressure, sending a second enabling signal to the control module 15, the control module 15 controlling the second air pump 12' to operate according to the second enabling signal, so that the air is guided out of the inflatable shoe tongue 11 to the inflatable shoelace 10, the inflatable shoe tongue 11 contracts inwards towards the direction approaching to the threading space 23, and the inflatable shoelace 10 is inflated and expanded to be tightened, so as to fit the foot of the user, after the user wears the foot to be sleeved into the sneaker 2, the air-filled shoelace 10 of the sneaker 2 is inflated and is tightly pressed inwards, thereby achieving the effect of automatic fixation.

In this embodiment, the pneumatic fixing device 1 further comprises a tongue pneumatic sensor (not shown), the tongue pneumatic sensor is disposed inside the inflatable tongue 11 and electrically connected to the control module 15, when the tongue pneumatic sensor senses that the internal pressure of the inflatable tongue 11 is higher than a specific threshold range, the tongue pneumatic sensor sends a first disable signal to the control module 15, and the control module 15 controls the first gas pump 12 to stop according to the first disable signal, so as to avoid the internal pressure of the inflatable tongue 11 from being too high and breaking, and avoid the effect of short life due to the long-time continuous operation of the first gas pump 12. In addition, in the embodiment, the pneumatic fixing device 1 for shoes further comprises a shoelace pressure sensor (not shown), wherein the shoelace pressure sensor is disposed inside the pneumatic shoelace 10, when the shoelace pressure sensor senses that the internal pressure of the pneumatic shoelace 10 is higher than a specific threshold value range, the shoelace pressure sensor sends a second disabling signal to the control module 15, and the control module 15 controls the second gas pump 12 'to stop operating according to the second disabling signal, so as to prevent the internal pressure of the pneumatic shoelace 10 from being too high and broken, and prevent the second gas pump 12' from being continuously operated for a long time and having a shortened service life. Moreover, the pneumatic fixing device 1 for shoes of the present embodiment further includes an air inlet valve (not shown), which is embedded on the outer side surface 11c of the inflatable tongue 11, but not limited thereto, the air inlet valve is electrically connected to the control module 15, when the shoelace pneumatic sensor or the tongue pneumatic sensor detects that the internal pressure of the inflatable shoelace 10 or the inflatable tongue 11 does not reach a specific threshold interval, the shoelace pneumatic sensor or the tongue pneumatic sensor will send an air inlet signal to the control module 15, and the control module 15 drives the air inlet valve to supply air according to the air inlet signal, so that the air is introduced into the inflatable tongue 11 from the outside of the pneumatic fixing device 1 for shoes, thereby preventing the internal pressure of the inflatable shoelace 10 or the inflatable tongue 11 from being too low to cause poor fixing effect.

In other embodiments, the inflatable shoelace 10 of the pneumatic fixing device 1 for shoes can be replaced by a common shoelace, and the pneumatic fixing device 1 for shoes can achieve the fixing and loosening effects only by arranging the inflatable tongue 11, in this implementation aspect, the first air pump 12 and the second air pump 12' are connected between the exterior of the pneumatic fixing device 1 for shoes and the inflatable tongue 11, and when the air is led out of the pneumatic fixing device 1 for shoes from the inflatable tongue 11 and the air bag part 14 to the exterior of the pneumatic fixing device through the first air pump 12, the inflatable tongue 11 is retracted towards the direction close to the insertion space 23 to fit the feet of the user; on the contrary, when the gas is introduced from the outside into the inflatable tongue 11 and the air bag portion 14 by the second gas pump 12', the inflatable tongue 11 is inflated to bulge outward in a direction away from the wearing space 23, so that the opening 24 is enlarged, thereby facilitating the user to wear and take off the sneaker 2.

Referring to fig. 10A and 10B, fig. 10A is a front exploded view of a gas pump according to a preferred embodiment of the present invention, and fig. 10B is a back exploded view of the gas pump according to the preferred embodiment of the present invention. In the present embodiment, the first gas pump 12 is a piezoelectric gas pump for driving the gas flow. As shown, the first gas pump 12 of the present invention includes a resonator plate 122, a piezoelectric actuator 123, a cover plate 126, and the like. The resonator plate 122 is disposed corresponding to the piezoelectric actuator 123, and has a hollow hole 1220 disposed in a central region of the resonator plate 122, but not limited thereto. The piezoelectric actuator 123 includes a suspension plate 1231, an outer frame 1232 and a piezoelectric element 1233, wherein the suspension plate 1231 can be but is not limited to a square suspension plate, and the suspension plate 1231 has a central portion 1231c and an outer peripheral portion 1231d, when the piezoelectric element 1233 is driven by a voltage, the suspension plate 1231 can vibrate in a bending manner from the central portion 1231c to the outer peripheral portion 1231d, the outer frame 1232 is disposed around the outer side of the suspension plate 1231 and has at least one support 1232a and a conductive pin 1232b, but not limited thereto, each support 1232a is disposed between the suspension plate 1231 and the outer frame 1232, and two ends of each support 1232a are respectively connected to the suspension plate 1231 and the outer frame 1232 to provide an elastic support, the conductive pin 1232b is outwardly protruded on the outer frame 1232 for electrically connecting to the outer frame 1232, the second surface 1231b of the piezoelectric element 1233 is disposed between the suspension plate 1231, and the side length of the piezoelectric element 1233 is less than or equal to the side length of the suspension, for receiving an external voltage to generate deformation so as to drive the suspension plate 1231 to vibrate in bending. The cover plate 126 has a sidewall 1261, a bottom plate 1262 and an opening 1263, the sidewall 1261 surrounds the periphery of the bottom plate 1262 and is protruded on the bottom plate 1262, and forms an accommodating space 126a together with the bottom plate 1262 for the resonator plate 122 and the piezoelectric actuator 123 to be disposed therein, the opening 1263 is disposed on the sidewall 1261 for the conductive pin 1232b of the outer frame 1232 to pass through the opening 1263 outwards and protrude out of the cover plate 126, so as to be connected to an external power supply, but not limited thereto.

In this embodiment, the first gas pump 12 of the present invention further includes two

insulation sheets

1241, 1242 and a conducting sheet 125, but not limited thereto, wherein the two

insulation sheets

1241, 1242 are respectively disposed on the upper and lower sides of the conducting sheet 125, and the shape thereof approximately corresponds to the outer frame 1232 of the piezoelectric actuator 123, and is made of an insulative material, for example: plastic for insulation, but not limited thereto, the conductive sheet 125 is made of conductive material, such as: metal for electrical conduction and having an outer shape substantially corresponding to the outer frame 1232 of the piezoelectric actuator 123, but not limited thereto. In this embodiment, a conductive pin 1251 may also be disposed on the conductive plate 125 for electrical conduction, and the conductive pin 1251 also passes through the opening 1263 of the cover plate 126 and protrudes out of the cover plate 126 like the conductive pin 1232b of the outer frame 1232, so as to be electrically connected to the control module 16.

Referring to fig. 11A, 11B, and 11C, fig. 11A is a front structural diagram of the piezoelectric actuator shown in fig. 1A and 10B, fig. 11B is a rear structural diagram of the piezoelectric actuator shown in fig. 1A and 10B, and fig. 11C is a cross-sectional structural diagram of the piezoelectric actuator shown in fig. 1A and 10B. As shown in the figure, in the embodiment, the suspension plate 1231 of the present invention has a stepped structure, that is, the central portion 1231c of the first surface 1231a of the suspension plate 1231 further has a convex portion 1231e, and the convex portion 1231e has a circular convex structure, but not limited thereto, in some embodiments, the suspension plate 1231 may also have a plate-shaped square shape with two flat surfaces. As shown in fig. 11C, the convex portions 1231e of the suspension plate 1231 are coplanar with the first surface 1232C of the outer frame 1232, the first surface 1231a of the suspension plate 1231 and the first surfaces 1232a 'of the brackets 1232a are also coplanar, and a certain depth is provided between the convex portions 1231e of the suspension plate 1231 and the first surfaces 1232C of the outer frame 1232, and the first surfaces 1231a of the suspension plate 1231 and the first surfaces 1232 a' of the brackets 1232 a. As for the second surface 1231B of the suspension plate 1231, as shown in fig. 11B and 11C, the second surface 2132d of the outer frame 1232 and the second surface 1232a ″ of the support 1232a are flat and coplanar, and the piezoelectric element 1233 is attached to the second surface 1231B of the flat suspension plate 1231. In other embodiments, the suspension plate 1231 may also be a square structure with a flat surface and a plate shape, and the shape of the suspension plate can be changed according to the actual implementation. In some embodiments, the suspension plate 1231, the outer frame 1232 and the support 1232a can be integrally formed, and can be formed by a metal plate, such as, but not limited to, stainless steel. In the present embodiment, the first gas pump 12 further has at least one gap 1234 among the suspension plate 1231, the outer frame 1232 and the support 1232a for gas to pass through.

Referring to fig. 12, fig. 12 is a schematic cross-sectional view of the gas pump shown in fig. 1A and 10B. As shown in the figure, the first gas pump 12 of the present invention is sequentially stacked from top to bottom by the cover plate 126, the insulation sheet 1242, the conductive sheet 125, the insulation sheet 1241, the piezoelectric actuator 123, the resonator 122 and other components, and the adhesive is applied around the stacked piezoelectric actuator 123, insulation sheet 1241, conductive sheet 125 and the other insulation sheet 1242 to form the adhesive 128, thereby completing the sealing. The assembled first gas pump 12 has a quadrilateral structure, but not limited thereto, and the shape thereof may be changed according to actual requirements. In addition, in the embodiment, only the conductive pin 1251 (not shown) of the conductive sheet 125 and the conductive pin 1232b (shown in fig. 10A) of the piezoelectric actuator 123 are protruded out of the cover plate 126 for connecting with an external power source, but not limited thereto. The assembled first gas pump 12 forms a first chamber 127b between the cover plate 126 and the resonator plate 122.

In the present embodiment, a gap g0 is formed between the resonator plate 122 and the piezoelectric actuator 123 of the first gas pump 12, and the gap g0 is filled with a conductive material, such as: the conductive paste, but not limited thereto, can maintain a depth of a gap g0 between the resonator plate 122 and the protrusion 1231e of the suspension plate 1231 of the piezoelectric actuator 123, so as to guide the airflow to flow more rapidly, and since the protrusion 1231e of the suspension plate 1231 maintains a proper distance from the resonator plate 122, the contact interference between the protrusion 1231e and the resonator plate 122 is reduced, so as to reduce the noise. Thus, when the piezoelectric actuator 123 is driven to perform the air collection operation, the air is firstly collected to the collecting chamber 127a from the opening portion 1263 of the cover plate 126, and further flows to the first chamber 127b through the hollow hole 1220 of the resonator plate 122 for temporary storage, and when the piezoelectric actuator 123 is driven to perform the air discharge operation, the air is firstly flowed from the first chamber 127b to the collecting chamber 127a through the hollow hole 1220 of the resonator plate 122, and is guided into the inflatable tongue 11 by the inflatable shoelace 10.

The operation of the first gas pump 12 of the present invention is further described below, referring to fig. 13A-13D, and fig. 13A-13D are schematic diagrams illustrating the operation of the gas pump according to the preferred embodiment of the present invention. First, as shown in fig. 13A, the first gas pump 12 is formed by sequentially stacking and positioning the cover plate 126, the other insulating sheet 1242, the conducting sheet 125, the insulating sheet 1241, the piezoelectric actuator 123 and the resonator plate 122, wherein a gap g0 is formed between the resonator plate 122 and the piezoelectric actuator 123, the resonator plate 122 and the side wall 1261 of the cover plate 126 jointly define the collecting chamber 127a, and a first chamber 127b is formed between the resonator plate 122 and the piezoelectric actuator 123. When the first gas pump 12 is not yet driven by voltage, the positions of its components are as shown in fig. 13A.

As shown in fig. 13B, when the piezoelectric actuator 123 of the first gas pump 12 is actuated by a voltage to vibrate upward, the gas enters the first gas pump 12 through the opening 1263 of the cover plate 126, and is collected in the collecting chamber 127a, and then flows upward into the first chamber 127B through the hollow hole 1220 of the resonator plate 122, and the resonator plate 122 also vibrates in a reciprocating manner under the resonance effect of the suspension plate 1231 of the piezoelectric actuator 123, i.e., the resonator plate 122 deforms upward accordingly, i.e., the resonator plate 122 slightly protrudes upward from the hollow hole 1220.

Thereafter, as shown in fig. 13C, the piezoelectric actuator 123 vibrates back to the initial position, and the convex portion 1231e of the suspension plate 1231 of the piezoelectric actuator 123 is close to the slightly convex portion of the resonator plate 122 at the hollow hole 1220, so as to temporarily store the gas in the first gas pump 12 in the upper half of the first chamber 127 b.

As shown in fig. 13D, the piezoelectric actuator 123 vibrates downwards, and the resonator plate 122 vibrates downwards due to the resonance effect of the vibration of the piezoelectric actuator 123, so that the resonator plate 122 compresses the volume of the first chamber 127b through the downward deformation of the resonator plate 122, and further, the gas in the upper layer of the first chamber 127b is pushed to flow to both sides and passes through the gap 1234 of the piezoelectric actuator 123 downwards to flow to the hollow hole 1220 of the resonator plate 122 for being compressed and discharged, thereby forming a compressed gas flow to the first flow guiding chamber 202 of the carrier 20 through the gas guiding opening 204. In this embodiment, when the resonator plate 122 vertically reciprocates, the maximum vertical displacement distance can be increased by the gap g0 between the resonator plate 122 and the piezoelectric actuator 123, i.e., the gap g0 between the vibrating plate 12 and the piezoelectric actuator 123 can allow the resonator plate 122 to vertically displace to a greater extent at the time of resonance.

Finally, the resonant piece 122 returns to the initial position, as shown in fig. 13A, and then continuously circulates from the sequence of fig. 13A to 13D through the aforementioned operation flow, so that the gas continuously flows into the converging chamber 127a through the opening 1263 of the cover plate 126, then flows into the first chamber 127b, and then flows into the converging chamber 127a through the first chamber 127b, so that the gas flow continuously flows into the inflatable tongue 11 from the inflatable shoelace 10, and the gas can be stably transmitted. In other words, when the first gas pump 12 of the present invention is operated, the gas flows through the opening 1263 of the cover plate 126, the collecting chamber 127a, the first chamber 127b, the collecting chamber 127a and the gas guiding end opening 204 in sequence, so that the first gas pump 12 of the present invention can achieve the effects of reducing the number of components of the first gas pump 12 and simplifying the overall process by using a single component, i.e., the cover plate 126, and the structural design of the opening 1263 of the cover plate 126.

Referring to fig. 14A and 14B, fig. 14A is a front exploded view of a gas pump according to another preferred embodiment of the present invention, and fig. 14B is a rear exploded view of the gas pump according to another preferred embodiment of the present invention. In another preferred embodiment of the present invention, the first gas pump 12 is formed by sequentially stacking and positioning the cover plate 126, the another insulating sheet 1242, the conducting sheet 125, the insulating sheet 1241, the piezoelectric actuator 123 and the resonator plate 122, and the assembly structure and the arrangement thereof are similar to those of the previous embodiments, so that no further description is provided herein, but the first gas pump 12 of this embodiment further includes the gas inlet plate 121, wherein the gas inlet plate 121 is stacked and positioned on the resonator plate 122, and the gas inlet plate 121 has a first surface 121a, a second surface 121b and at least one gas inlet hole 1210, and in this embodiment, the number of the gas inlet holes 1210 is 4, but not limited thereto, and the gas inlet holes penetrate through the first surface 121a and the second surface 121b of the gas inlet plate 121, and are mainly used for allowing gas to flow from the outside of the apparatus into the first gas pump 12 through the at least one gas inlet hole 1210 under the action of atmospheric pressure. And as also shown in fig. 14B, it can be seen from the first surface 121B of the intake plate 11 that at least one bus hole 1212 is formed thereon to correspond to the at least one intake hole 1210 of the second surface 121a of the intake plate 121. A central recess 1211 is formed at the center of the bus hole 1212, and the central recess 1211 is in communication with the bus hole 1212, so that the gas entering the bus hole 1212 from the at least one gas inlet hole 1210 can be guided and converged into the central recess 1211, so that the gas can be effectively converged into the hollow hole 1220 of the resonator plate 122, thereby delivering the gas to the interior of the first gas pump 12. Therefore, the air inlet plate 121 has an air inlet 1210, a bus hole 1212 and a central recess 1211 formed integrally, and a converging chamber for converging air is formed at the central recess 1211 for temporarily storing air. In some embodiments, the material of the air inlet plate 121 may be, but is not limited to, a stainless steel material. In other embodiments, the depth of the bus chamber formed by the central recess 1211 is the same as the depth of the bus holes 1212, but not limited thereto. The resonator plate 12 is made of a flexible material, but not limited thereto, and the resonator plate 12 has a hollow hole 120 corresponding to the central recess 1211 of the first surface 121b of the inlet plate 121, so that the gas can flow downward. In other embodiments, the resonator plate may be made of a copper material, but not limited thereto.

As described above, by the operation of the first gas pump 12, the gas is introduced from the inflatable shoelace 10 into the inflatable tongue 11, so that the inflatable shoelace 10 is deflated and loosened, the inflatable tongue 11 is inflated with the gas to be expanded and protruded outward, and the opening 24 and the wearing space 23 of the sneaker 2 are enlarged, thereby facilitating the user to put on and take off the sneaker 2. In addition, the structure of the second air pump 12 'of the present invention is similar to the first air pump 12, and therefore, the second air pump will not be described herein again, and air is introduced into the air bag portion 14 from the inflatable tongue 11, so that the inflatable shoelace 10 is inflated and tightened, the air inside the inflatable tongue 11 is discharged and contracted inward, and the opening 24 and the wearing space 23 of the sneaker 2 are reduced, so that the user's foot is firmly fixed in the sneaker 2.

In summary, the present invention provides an air pressure fixing device for shoes, wherein a weight sensor senses weight to determine whether a user is in a wearing state or a taking-off state, and a control module drives a first air pump or a second air pump to control the air-inflation tongue to exhaust air and contract inwards and the air-inflation shoelace to intake air tightly when the user is in the wearing state, so as to firmly fix the foot of the user; when the user takes off the shoes, the air inlet of the inflatable shoe tongue is controlled to expand outwards, and the inflatable shoe lace is exhausted to be loose, so that the user can conveniently put on and take off the feet. In addition, the air pressure fixing device for the shoes has an air pressure adjusting function, air pressure inside the inflatable shoe tongue and the inflatable shoe lace is detected through the shoe lace air pressure sensor and the shoe tongue air pressure sensor, and the air inlet valve supplies air when the air pressure is insufficient, so that the control module controls the air pressure in a certain range, the phenomenon that the foot is uncomfortable or the air bag is broken due to over expansion of the inflatable shoe tongue and the inflatable shoe lace can be avoided, and more comfortable pressure is provided for a user to wear.

The invention may be modified in various ways by those skilled in the art without however departing from the scope of protection as defined by the appended claims.

Claims

1. The utility model provides a shoes atmospheric pressure fixing device, is applicable to a shoes, and this shoes contain a shoes body and a bottom, and this shoes body contains several shoelace holes, and this shoes body is connected with this bottom to define a wearing and put the space jointly, this shoes atmospheric pressure fixing device contains:

the inflatable shoe tongue is of an inflatable expansion structure, and the inflatable shoe tongue and the shoe body jointly define an opening which is communicated with the penetrating space;

the first air pump is communicated with the inflatable shoe tongue; and

a control module electrically connected to the first gas pump;

the control module controls gas to be led out from the inflatable tongue according to a second enabling signal, so that the inflatable tongue retracts towards the direction close to the wearing space to fit the instep of a user; the control module drives the first gas pump to actuate according to a first enabling signal, so that gas is introduced into the inflatable tongue, the inflatable tongue is filled with the gas to expand, the plurality of bumps expand to protrude outwards, the inflatable tongue protrudes towards a direction far away from the penetrating space, and the opening is enlarged.

2. The pneumatic pressure fixing apparatus for shoes as claimed in claim 1, wherein the inflatable tongue further comprises an outer bladder, an inner bladder and a two-way valve, wherein a plurality of protrusions protruding outward are formed on an outer side surface of the outer bladder, a gap is formed between each adjacent protrusion, a plurality of protrusions protruding inward are formed on an inner side surface of the inner bladder, a gap is formed between each adjacent protrusion, the two-way valve is a two-way air inlet structure and is connected between the outer bladder and the inner bladder, and air is introduced into the outer bladder through the two-way valve to expand the plurality of protrusions of the outer bladder to protrude outward, so that the inflatable tongue protrudes away from the wearing space; the air is introduced into the inner air bag through the two-way valve, so that the plurality of lugs of the inner air bag expand to protrude inwards, and the inflatable shoe tongue protrudes towards the direction close to the penetrating space.

3. The pneumatic fixing device for shoes as claimed in claim 1, further comprising a tongue pneumatic sensor disposed inside the inflatable tongue and electrically connected to the control module, wherein when the tongue pneumatic sensor senses that the pressure inside the inflatable tongue is higher than a predetermined threshold value range, the tongue pneumatic sensor sends a first disable signal to the control module, and the control module controls the first gas pump to stop operating according to the first disable signal.

4. The pneumatic fixture device as claimed in claim 1, further comprising a shoelace disposed in the shoelace hole of the shoe body.

5. The pneumatic fixture device for shoes as claimed in claim 1, wherein the pneumatic fixture device for shoes further comprises:

an inflation shoelace which is an inflatable expansion structure and is arranged in the plurality of shoelace holes in a penetrating way;

an air bag portion attached to an outer side surface of the inflatable tongue and communicated with the inflatable tongue;

a first gas channel and a second gas channel which are respectively communicated between the air bag part and the inflating shoelace, and the first gas pump is arranged in the first gas channel; and

the second gas pump is arranged in the second gas channel and is electrically connected with the control module;

the control module drives the second gas pump according to the second enabling signal, so that gas is led into the inflatable shoelace from the inflatable tongue through a second gas channel, the inflatable tongue is retracted towards the direction close to the threading space, and the inflatable shoelace is inflated and expanded to be tightened so as to fit the instep of a user; the control module drives the first gas pump to actuate according to the first enabling signal, so that gas is led into the air bag portion and the inflatable tongue from the inflatable shoelace through the first gas channel, the inflatable shoelace is deflated and relaxed, the inflatable tongue is inflated and expanded, the plurality of convex blocks of the inflatable tongue are expanded and protrude outwards, the inflatable tongue protrudes towards the direction far away from the wearing space, and the opening is enlarged, so that a user can wear and take off the shoe.

6. The pneumatic fixture device according to claim 5, further comprising a switch electrically connected to the control module, wherein when the switch is turned on, the switch sends the second enable signal to the control module; when the switch is closed, the switch sends the first enabling signal to the control module.

7. The pneumatic fixture device according to claim 5, further comprising a pressure sensor, wherein the weight sensor is disposed on the bottom portion, wherein when the pressure sensor detects a pressure, the pressure sensor sends the second enable signal to the control module.

8. The pneumatic fixture device according to claim 5, further comprising a shoelace pneumatic sensor disposed inside the inflatable shoelace, wherein when the shoelace pneumatic sensor senses that the internal pressure of the inflatable shoelace is higher than a predetermined threshold value range, the shoelace pneumatic sensor sends a second disable signal to the control module, and the control module controls the second gas pump to stop operating according to the second disable signal.

9. The pneumatic fixture of claim 8, further comprising an air inlet valve embedded in the outer surface of the inflatable tongue and electrically connected to the control module, wherein when the shoelace pressure sensor or the tongue pressure sensor detects that the internal pressure of the inflatable shoelace or the inflatable tongue does not reach a predetermined threshold value range, the shoelace pressure sensor or the tongue pressure sensor sends an air inlet signal to the control module, and the control module drives the air inlet valve to supply air according to the air inlet signal, so that the air is introduced into the inflatable tongue from the outside of the pneumatic fixture.

10. The pneumatic retainer for footwear according to claim 5, wherein the pneumatic lace is an artificial muscle pneumatic lace.

11. The pneumatic fixing device for shoes according to claim 5, wherein the pneumatic shoelace further comprises at least one tying portion and at least one connecting portion, and both ends of the at least one tying portion are respectively provided with a through hole for communicating between the at least one tying portion and the at least one connecting portion through the through hole.

12. The pneumatic fixture of claim 11, wherein said tie portion further comprises a plurality of expansion portions and a plurality of connecting portions, said connecting portions connecting between adjacent ones of said plurality of expansion portions and defining a plurality of gaps between adjacent ones of said plurality of expansion portions.

13. The pneumatic fixing device for shoes as claimed in claim 12, wherein the connecting portions are connected between the adjacent expansion portions in a staggered manner at upper and lower ends thereof.

14. The pneumatic fixture of claim 1, wherein said first air pump is a piezo-actuated air pump, said piezo-actuated air pump comprising:

a resonant plate having a hollow hole, and a movable portion surrounding the hollow hole;

a piezoelectric actuator, which is arranged corresponding to the resonance sheet; and

the cover plate is provided with at least one side wall, a bottom plate and an opening part, the side wall surrounds the periphery of the bottom plate and is convexly arranged on the bottom plate, an accommodating space is formed by the side wall and the bottom plate together, the accommodating space is used for accommodating the resonator plate and the piezoelectric actuator, and the opening part is arranged on the side wall;

a gap is formed between the resonance sheet and the piezoelectric actuator to form a chamber, so that when the piezoelectric actuator is driven, airflow is guided in from the opening part of the cover plate and enters the chamber through the hollow hole of the resonance sheet, and resonance transmission airflow is generated by the piezoelectric actuator and the movable part of the resonance sheet.

15. The pneumatic fixture of claim 14, wherein said piezoelectric actuator comprises:

a suspension plate having a first surface and a second surface and capable of bending and vibrating;

the outer frame is arranged around the outer side of the suspension plate;

at least one bracket connected between the suspension plate and the outer frame to provide elastic support; and

the piezoelectric component is attached to a first surface of the suspension plate and used for applying voltage to drive the suspension plate to vibrate in a bending mode.

16. The pneumatic fixture of claim 15, wherein said suspension plate is a square suspension plate and has a protrusion.

17. The pneumatic fixture of claim 15, wherein said piezo-actuated gas pump comprises a conductive plate, a first insulating plate and a second insulating plate, wherein said resonator plate, said piezo-actuator, said first insulating plate, said conductive plate, said second insulating plate and said cover plate are stacked in sequence.

18. The pneumatic fixture apparatus of claim 15, wherein said piezoelectric-actuated gas pump further comprises a gas inlet plate stacked and positioned on said resonator plate, said gas inlet plate comprising a first surface, a second surface, at least one gas inlet hole, a central recess and at least one bus hole, wherein said at least one gas inlet hole penetrates said first surface and said second surface, said at least one bus hole is disposed on said second surface and is in communication with said at least one gas inlet hole, said central recess is also disposed on said second surface and is in communication with said at least one bus hole, and said central recess is converged into said central recess through said bus hole, such that gas can be introduced into said hollow hole of said resonator plate.