Length-adjustable water walking shoe

Abstract

The utility model relates to the technical field of water walking aiding, and discloses a length-adjustable water walking shoe which comprises a pedal device and a floating device, the foot of a user can penetrate into the pedal device, and the floating device is arranged at the bottom of the pedal device and used for enabling the pedal device to float on the water surface. The pedal device is provided with a wearing space which is adjustable in length and used for allowing the feet of the user to penetrate and constraining the toes, the instep and the heel of the user. By arranging the pedal device and the floating device, the length-adjustable wearing space on the pedal device enables the length of the foot of a user to be matched with the length-adjustable wearing space, and the wearing space is used for constraining and fitting toes, a sole and a heel of the user respectively, so that the situation that the foot of the user slips relative to the wearing space and is not supported front and back is prevented; the wearing is firm, so that a user can better adjust the balance, and the water walking experience feeling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water walking aids, in particular to a length-adjustable water walking shoe. Background Art

[0002] Water walking shoes are shoes designed for walking on water. They feature a buoyant sole that increases buoyancy, allowing people to walk on the surface without sinking. Water walking shoes can help people walk on surfaces like lakes and beaches, avoiding the inconvenience of wading. They also serve as a form of recreation and exercise, enhancing balance and coordination.

[0003] As the name suggests, water walking shoes are worn by the user to walk on the water. For example, Chinese utility model patent number "CN201882238U" discloses water walking shoes (hereinafter referred to as the patent). The shoes include an air bag, a shoe mounted above the air bag, and an inflation port on one side of the air bag. The patent has a simple structure and is easy to use, making it convenient for users to play in the water.

[0004] When the user steps on the water and sways, the user has to rely on himself to adjust his balance. Once the user leans backward, the unsupported heel and back of the leg will make it impossible for the user to control the walking shoe to adjust his balance, which may cause him to fall, increasing the trouble and danger. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a water walking shoe with adjustable length to solve the problem that the existing water walking shoes do not fit the user's feet.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a length-adjustable water walking shoe including a footrest device for a user's foot to be inserted therein and a floatation device arranged at the bottom of the footrest device for making the footrest device float on the water surface; the footrest device has a wearing space with adjustable length for the user's foot to be inserted therein and to restrain the user's foot; after the user inserts the foot into the wearing space, the floatation device provides the user with buoyancy so that the user can float on the water surface; and the wearing space with adjustable length can be adjusted according to the size of the user's foot until the wearing space enables the footrest device to be worn more firmly on the user's foot, thereby preventing the user from loosening relative to the footrest device or slipping back and forth and having difficulty in maintaining balance on the water surface.

[0007] Furthermore, the footrest device includes a base fixedly connected to the top surface of the floating device for the user to step on, and a rear foot part movably arranged on the base along the length direction of the base; the footrest device also includes a front foot part arranged on the front end of the base for restraining the front end of the user's foot and / or a shoe buckle part arranged in the middle of the base for restraining the instep; the rear foot and the front foot and / or the shoe buckle part can move toward or away from each other along the length direction of the base, and the wearing space is formed by the base, the rear foot, the front foot and / or the shoe buckle part. By adjusting the matching spacing between the front foot and the rear foot, or the spacing between the front foot and the shoe buckle part, or the spacing between the front foot, the shoe buckle part and the rear foot, the length of the wearing space can be adjusted, so that the front foot, the shoe buckle part and the rear foot can be used to restrain the front, middle and rear parts of the user's foot, thereby preventing the user from slipping relative to the wearing space, thereby better maintaining the stability between the user and the walking shoe.

[0008] Furthermore, a slide groove is formed on the top surface of the base, and the slide groove is distributed along the length direction of the base, and the bottoms of the front foot and the rear foot are both slidably arranged in the slide groove; there is a tensioning part located in the slide groove and adjusting the distance between the front foot and the rear foot between the front foot and the rear foot; the tensioning part includes a first spring arranged in the slide groove along the length direction of the slide groove and a first slide rod passed through the first spring, the two ends of the first spring are respectively connected to the bottoms of the front foot and the rear foot, one end of the first slide rod is connected to the rear foot, and the other end is movably passed through the rear foot, so that the front foot and the rear foot can respectively support the toes and heels of the user.

[0009] Furthermore, the front foot portion includes a first connecting seat slidably arranged in a slide groove, the first spring is connected to the first connecting seat, the first sliding rod is movably arranged in the first connecting seat along the length direction of the base, and the top of the first connecting seat passes upward out of the slide groove and bends toward one side of the shoe buckle portion to form a front baffle for covering the user's toes, so as to limit the toe part of the user's forefoot.

[0010] Furthermore, the shoe buckle portion includes a shoelace for covering the instep of the user, and the shoelace is detachably connected to the base to facilitate the user to remove the shoelace; the lateral sides of the base are respectively provided with sliding grooves distributed along the length direction thereof, a second sliding rod is slidably provided in the sliding groove, and the upper side wall of the sliding groove is provided with a plurality of perforations distributed along the length direction thereof, each of the perforations passes through the upper side wall up and down, and an open slit connected to the perforation is provided on the outer side surface of the upper side wall; at least one connecting rope is respectively provided on both sides of the shoelace, and the connecting rope passes through the perforation and enters the The sliding groove is connected to the second sliding rod of the sliding rod; the second sliding rod can also detach from the sliding groove along the width direction of the base, and drive the connecting rope to leave the through-hole from the slit, so that the shoelace is in an unfolded state, so as to limit the sliding of the second sliding rod in the sliding groove; the second sliding rod is made of a material that can be magnetically attracted, and a magnetic attraction part for magnetically attracting the second sliding rod is provided in the sliding groove or on the base near the bottom wall of the sliding groove, and the magnetic attraction part is distributed along the length direction of the sliding groove to further limit the movement of the second sliding rod and prevent the second sliding rod from detaching from the sliding groove.

[0011] Furthermore, the rear foot portion includes a second connecting seat that slides through the slide groove, the other ends of the first slide rod and the first spring are connected to the second connecting seat, the top of the second connecting seat extends upward and passes through the slide groove to form a column, and a rear baffle is provided on the side of the column facing the front foot portion for surrounding and resting against the heel of the user, so as to block the heels of users with different foot sizes through adjustment.

[0012] and a control button which is located on the second sliding seat and connected to the second sliding seat so that the second sliding seat can be adjusted relative to the first sliding seat. When the cam is in the forward position and the inward position, the second spring biases the cam so that the second end of the cam can slide relative to the first slide and the second end of the cam can slide relative to the first slide.

[0013] Furthermore, the slide groove has a square groove section, a trapezoidal groove section and an arcuate groove section that are connected in sequence from top to bottom, at least one second sliding cavity penetrates to the side wall of the arcuate groove section, and at least one second sliding cavity penetrates to the side wall of the trapezoidal groove section. The first connecting seat and the second connecting seat are adapted to the slide groove so that the second connecting seat provides acceptance in multiple directions through the pin, thereby better fixing the second connecting seat.

[0014] Furthermore, there is a drainage gap between the bottom of the front baffle shoe buckle part and the bottom of the rear baffle and the top surface of the base, so as to drain the water in the wearing space in time to prevent slipping and increase comfort.

[0015] Furthermore, the floating device includes a front sole and a rear sole, both of which are hollow inside, and a plurality of sealed cavities are formed inside the front sole and the rear sole by partitions. The partitions provide internal support to the front sole and the rear sole to improve strength. At the same time, after the plurality of cavities are formed, even if any cavity leaks, it can avoid sinking or slow down the sinking time to a certain extent; the front sole includes a first floating section connected to the bottom of the footrest device and a first floating section located below the first floating section, the first floating section is widened and streamlined by a side close to the footrest device and curved downward and outward relative to the footrest device, the first floating section is narrowed and streamlined by a side close to the first floating section and curved downward and inward, and a first concave section with a middle part curved forward is formed on the side of the first floating section facing the rear sole. The bottom of the first lower floating section is curved backward; the rear sole includes a second upper floating section connected to the bottom of the pedal device and integrally connected to the first upper floating section, and a second lower floating section located below the second upper floating section, the second upper floating section is widened by curving downward and outward relative to the pedal device near the pedal device and is streamlined, and the second lower floating section is narrowed by curving downward and inward on the side near the second upper floating section and is streamlined, and a second concave curved surface with a middle part widened toward the front is formed on the side of the second upper floating section and the second lower floating section away from the front sole, and the bottom of the second lower floating section is curved backward; convex edges are provided along the symmetry line on the outer contour surfaces of the first upper floating section and the first lower floating section and the outer contour surface of the second lower floating section, so as to better break through the water resistance and provide a certain degree of propulsion to the user.

[0016] The length-adjustable water walking shoes of the present invention have at least the following beneficial effects: by providing a footrest device and a floating device, the wearing space on the footrest device can be adjusted in length so that the length of the user's foot can be adapted thereto, and the wearing space is used to restrain and fit the user's toes, soles and heels respectively, preventing the user's feet from slipping relative to the wearing space and being unsupported front and back, making the wearing of the shoes firm and not loose, thereby enabling the user to better adjust their balance and improving the experience of walking on water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 This is a schematic structural diagram of the water walking shoes of the present invention;

[0019] Figure 2 This is an exploded view of the water walking shoes of the present invention;

[0020] Figure 3 This is a front view of the water walking shoe of the present invention;

[0021] Figure 4 It is a top view of the pedal device of the present invention;

[0022] Figure 5 It is a cross-sectional view of the pedal device of the present invention along the AA direction;

[0023] Figure 6 Based Figure 5 An enlarged view of part B is shown.

[0024] The meanings of the reference numerals in the accompanying drawings are:

[0025] Footrest 1; Base 11; Extended edge 111; Slide 112; Square groove section 1121; Stepped groove section 1122; Arc groove section 1123; Limiting groove 113; Limiting plate 114; Hook 115; Sliding groove 116; Perforation 117; Magnetic strip 118; Front foot 12; First connecting seat 121; Sliding end 1211; Slot 1212; Front baffle 122; Buckle 13; Lace 131; Second slide bar 132; Connecting rope 133; Rear foot 14; Second connecting seat 141; First section 1411; Second section 1412; Third section 1413; Post 142; Rear baffle 143; Adjustment section 15; Moving shaft 151; Internal Groove 1511; shallow end 1512; deep end 1513; latch 152; second spring 153; push block 154; third slide bar 155; third spring 156; first sliding cavity 1571; second sliding cavity 1572; third sliding cavity 1573; fourth sliding cavity 1574; first spring 16; first slide bar 17; drainage gap 18; floating device 2; front sole 21; first upward floating section 211; first downward floating section 212; first concave arc surface 213; rear sole 22; second upward floating section 221; second downward floating section 222; first curved surface 223; second curved surface 224; second concave arc surface 225; convex edge 23; partition 24. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figures 1 to 6As shown, the length-adjustable water walking shoes of the present invention include a footrest device 1 for a user's foot to insert therein, and a floatation device 2 provided at the bottom of the footrest device 1 for making the footrest device 1 float on the water surface. The footrest device 1 is used to be worn on the user's foot, and the floatation device 2 provides buoyancy to the user after the user wears the footrest device 1, so that the user can float on the water surface and walk on the water surface by alternately lifting the legs.

[0028] Example 1

[0029] like Figures 1 to 5 As shown, the footrest device 1 includes a base 11 fixedly connected to the top surface of the floating device 2 for the user to step on, a front foot portion 12 provided on the front end of the base 11 for restraining the toes, a shoe buckle portion 13 provided in the middle of the base 11 for restraining the instep, a rear foot portion 14 provided at the rear end of the base 11 and movable along the length direction of the base 11, and an adjustment portion 15 provided on the rear foot portion 14 for limiting the movement of the rear foot 14. A wearing space is formed between the base 11, the front foot portion 12, the shoe buckle portion 13 and the rear foot portion 14. The wearing space is formed by the front foot portion 12 and the shoe buckle portion 13. The front foot portion 12, the shoe buckle portion 13 and the rear foot portion 14 are used in conjunction with each other so that after the user's foot steps on the base 11 to enter the wearing space, the front foot portion 12 restricts the user's toes on the base 11, the shoe buckle portion 13 restricts the user's sole on the base 11, and the rear foot portion 14 presses the user's heel to cooperate with the front foot portion 12 to press and fix the user's heel from the front and back sides of the foot respectively, thereby fixing the user's foot relative to the base 11, preventing the user from slipping in the wearing space and affecting the balance. At the same time, the wearing space that fits the foot can ensure wearing comfort.

[0030] In the present embodiment, the base 11 is made of a hard material such as plastic and has a rectangular parallelepiped structure with length, width, and height. The sides where the two wide sides of the base 11 are located are regarded as the two ends of the base 11, and one end is defined as the front end and the other end is defined as the rear end to correspond to the front and back directions respectively. The sides where the two long sides of the base 11 are located are regarded as the two sides of the base 11, which are also the lateral sides of the base 11, and one side is defined as the left side and the other side is defined as the right side to facilitate understanding of the structure of the present utility model. The middle part of the front end of the base 11 is convex toward the front side in an arc shape so that the base 11 can be used as an insole for the user to step on. Preferably, an extension edge 111 is formed on both sides of the base 11, extending back to back. The top surface of the extension edge 111 is tilted from high to low from the side close to the base 11 to the side away from the base 11 to facilitate water discharge downward. The bottom of the extension edge 111 is flush with the bottom surface of the base 11 and is both connected to the floatation device 2. The entire bottom surface of the base 11 and the extension edge 111 are fixedly connected to the top surface of the floatation device 2, perhaps by adhesion. The extension edge 111 increases the contact area between the base 11 and the floatation device 2, ensuring a stronger connection between the base 11 and the floatation device 2. Preferably, a groove 112 is recessed along the thickness of the top surface of the base 11. The length of the groove 112 is parallel to the length of the base 11. The bottom of the front leg 12 is fixedly mounted on the front end of the groove 112, while the bottom of the rear leg 14 is movably mounted within the groove 112 and located on the rear end of the front leg 12. The rear leg 14 can slide back and forth along the groove 112 relative to the base 11. The rear end of the groove 112 extends through the base 11 along its length, facilitating installation and removal of the rear leg 14. In order to prevent the rear foot 14 from escaping from the slide groove 112 at the rear end thereof, a limiting groove 113 communicating with the slide groove 112 is recessed on the top surface of the base 11 and near the rear end along the thickness direction of the base 11. The limiting groove 113 is located on the front side of the rear end port of the slide groove 112, and the length direction of the limiting groove 113 extends along the width direction of the base 11 so that the length of the limiting groove 113 is greater than the width of the slide groove 112. A limiting plate 114 is inserted in the limiting groove 113 to block the rear end port of the slide groove 112, thereby preventing the rear foot 14 from escaping from the rear end port of the slide groove 112.

[0031] In this embodiment, the chute 112 comprises, from top to bottom along the thickness direction of the base 11, a square chute section 1121, a step-shaped chute section 1122, and an arcuate chute section 1123, which are sequentially connected. The square chute section 1121 is a square structure, the step-shaped chute section 1122 is an isosceles trapezoidal structure that is narrow at the top and wide at the bottom, and the arcuate chute section 1123 is an arc structure with a downwardly convex center. The shapes of each chute section refer to the cross-sectional shape of the rear view. The chute 112 can also be configured with other cross-sectional shapes, such as a dovetail shape, and is not limited to this embodiment.

[0032] In this embodiment, the front foot 12 includes a first connecting seat 121 installed in the front end of the slide groove 112 and a front baffle 122 located outside the slide groove 112. A sliding end 1211 with a cross-sectional shape adapted to the slide groove 112 is provided on one end of the first connecting seat 121 and is located in the front end of the slide groove 112. The sliding end 1211 slides in cooperation with the slide groove 112; the other end of the first connecting seat 121 passes upward out of the slide groove 112, bends backward, and is fixedly connected to the front baffle 122. The length of the front baffle 122 is parallel to the width of the base 11, and the width of the front baffle 122 is arranged along the thickness of the base 11. All sides of the front baffle 122, except the bottom edge, are curved and extended toward the rear side to form a cavity within the front baffle 122 and form part of the wearable space. When the user's foot enters the wearable space, the various parts of the front baffle 122 are arranged around the user's toes, thereby limiting the toes from moving up and down relative to the base 11 and preventing the user from tilting up relative to the base 11 and leaning back when walking on water. During assembly, the sliding end 1211 of the first connecting seat 121 is inserted into the slide groove 112 and slid to the front end of the slide groove 112, thus completing the installation between the first connecting seat 121 and the base 11.

[0033] The shoe buckle 13 includes a shoelace 131 made of a flexible material for covering the user's instep, and second slide bars 132 disposed on either side of the shoelace 131. The shoelace 131 can be made of a fiber cloth or other material to enhance comfort. The shoelace 131 is arranged along the width of the base 11 and is mounted on the base 11. A cavity is defined between the shoelace 131 and the base 11, allowing the user's foot to pass through and fit snugly against the base 11. The shoelace 131 is detachably connected to the base 11 via the second slide bars 132. This not only facilitates installation of the shoelace 131, but also allows the entire footrest 1 to be removed by simply detaching the shoelace 131. In the event that a user falls into water and the flotation device 2 floats upward, with the footrest 1 facing downward, the buoyancy of the flotation device 2 makes it difficult for the user to flip back up. In this case, the shoelace 131 can be quickly detached from the footrest 1, ensuring the user's safety.

[0034] In this embodiment, multiple connecting ropes 133 are arranged at equal intervals on both sides of the wide side of the shoelace 131 along the length direction of the base 11 / the width direction of the shoelace 131, and the length direction of each connecting rope 133 extends along the length direction of the shoelace 131 and one end is fixedly connected to the shoelace 131. The other end of each connecting rope 133 on one side of the shoelace 131 is connected to one of the second sliding rods 132, and the other end of each connecting rope 133 on the other side of the shoelace 131 is connected to the other second sliding rod 132. The two second sliding rods 132 are arranged along the length direction of the base 11. Hooks 115 are formed on both sides of the base 11, directly above the extension 111, facing away from each other. These hooks 115 extend along the entire side of the base 11 and curve from top to bottom, from inward to outward, and then further inward to form a hook shape. A sliding slot 116 is defined between the hooks 115 and the side of the base 11, through which the second slide bar 132 passes. A slit connects the sliding slot 116 and allows the second slide bar 132 to pass through it, leaving the bottom of the sliding slot 116 open. During use, the second slide bar 132 is simply inserted into the sliding slot 116 through the slit. To prevent the second slide bar 132 from being pulled out of the slit by the connecting rope 133, preferably, a plurality of perforations 117 are formed on the hook portion 115 along the length of the base 11. Each perforation 117 extends through the thickness of the base 11 to connect to the sliding groove 116 and pass through the connecting rope 133. The perforations 117 are arranged at equal intervals, and the spacing between adjacent perforations 117 is substantially consistent with the spacing between adjacent connecting ropes 133 to adapt to each other. Each perforation 117 is connected to the slit so that each connecting rope 133 on the shoelace 131 can pass through a corresponding number and position of perforations 117. When the user's foot is inserted into the wearing space between the shoelace 131 and the base 11, the user's instep exerts a partial upward pulling force on the shoelace 131 and the connecting rope 133. In addition, the second slide bar 132 cannot pass through the perforations 117. As a result, the second slide bar 132 will not slide out of the slit without external force, thereby ensuring the wearing stability of the pedal device 1. To further enhance the stability and firmness of the connection between the second slide bar 132 and the sliding groove 116, a magnetic element is provided on the inner wall of the sliding groove 116 along the length of the base 11. The magnetic element is a magnetic strip 118. The second slide bar 132 is made of a magnetic material such as iron that can magnetically cooperate with the magnetic strip 118. While the hook 115 restrains the second slide bar 132, the magnetic strip 118 magnetically attracts the second slide bar 132, further enhancing the firmness of the connection between the second slide bar 132 and the sliding groove 116. During use, when the user wears the footrest device 1 and walks on the water, lifting the foot pulls the shoelace 131 and the connecting rope 133 upward. When the user's foot steps on the water, a small gap between the shoelace 131 and the connecting rope 133 and the instep is formed, causing the shoelace 131 and the connecting rope 133 to collapse. However, the second slide bar 132, magnetically attracted by the magnetic strip 118, will not slide out of the gap along the sliding groove 116.

[0035] The bottom of the rear foot portion 14 is slidably connected to the rear end of the slide groove 112 , and the front foot portion 12 and the rear foot portion 14 are elastically tensioned and fitted together along the length direction. The first spring 16 is in a state of being always compressed to always press the first connecting seat 121 and the rear foot 14. After the rear foot 14 is restricted in position by the adjustment portion 15, the first sliding bar 17 can movably pass through the first connecting seat 121, and the first spring 16 always presses the first connecting seat 121 toward the front end, so that the first connecting seat 121 can be pressed against the front end of the sliding slot 112, preventing the first connecting seat 121 from sliding backward and causing the front foot 12 and the rear foot 14 to be in a tensioned state. A through slot 1212 is provided on the rear side surface of the first connecting seat 121 for the first sliding rod 17 to movably penetrate therein. The front end of the first sliding rod 17 is always located in the through slot 1212, and the rear end of the first sliding rod 17 is fixedly connected to the bottom of the rear foot 14. When the rear foot 14 slides in the sliding slot 112, the first sliding rod 17 follows the foot 14 and moves, and the front end of the first sliding rod 17 moves in the through slot 1212. The first spring 16 is sleeved on the first sliding rod 17 and one end is connected to the first connecting seat 121. The other end of the first spring 16 is connected to the rear foot 14. The first sliding rod 17 provides support and guidance for the first spring 16 to prevent the first spring 16 from bending.

[0036] The rear foot portion 14 includes a second connecting seat 141 that slides through the slide groove 112, a column 142 connected to the second connecting seat 141 and extending upward to pass through the slide groove 112, and a rear baffle 143 connected to the front side of the column 142. The second connecting seat 141 can slide relative to the slide groove 112, the rear baffle 143 is used to surround and deliver it to the user's heel, and the column 142 is used to support the rear baffle 143. The second connecting seat 141 can slide relative to the slide groove 112, and the wearing space is formed by the front baffle 122, the top surface of the base 11, the shoelace 131 and the rear baffle 143. The adjustment part 15 is set on the second connecting seat 141 and the column 142. During use, the adjusting portion 15 limits the second connecting seat 141 so that the second connecting seat 141 cannot move. After unlocking the second connecting portion through the adjusting portion 15, the user can put the foot into the wearing space and gently fit the toes into the front baffle 122. Then, by pushing the column 142, the unlocked second connecting seat 141 slides toward the user's heel in the slide groove 112 until the rear baffle 143 fits the user's heel. Then, the adjusting portion 15 locks the second connecting seat 141 again to fix the second connecting seat 141. In this way, the length of the wearing space can be adjusted so that the foot pedal device 1 can be firmly worn on the foot after the user puts on the foot, thereby not affecting the user's walking experience on water.

[0037] In this embodiment, the cross-sectional shapes of the sliding end 1211 and the second connecting seat 141 are adapted to the slide groove 112 and also have a square first section 1411, a terraced second section 1412 and an arc-shaped third section 1413 sequentially connected from top to bottom. In this way, there are multiple contact surfaces between the first connecting seat 121 and the slide groove 112 and between the second connecting seat 141 and the slide groove 112, which increase the contact area and make the cooperation more stable. At the same time, since the entire footrest device 1 is walking on the water surface in conjunction with the floating device 2, the water surface is constantly fluctuating, resulting in instability of the water surface, which will cause the floating device 2 to drive the entire footrest device 1 to shake with the fluctuation of the water surface. When the footrest device 1 tilts backward or in other directions, the user needs to face the direction opposite to the tilt direction. The front baffle 122 and the rear baffle 143 that support the heel and toes of the user are subjected to the force brought by the user's feet during this process, and the structure of the slide 112 and the first connecting seat 121 and the second connecting seat 141 can enable each surface to bear forces in different directions respectively. The inner walls on both sides of the second section 1412 can be used to support the force inclined toward the left and right sides, and when the user lifts his legs while walking and drives the footrest device 1 upward, the front baffle 122 and the rear baffle 143 are used to drive the first connecting seat 121 and the second connecting seat 141 to lift upward, so that the second section 1412 contacts the terraced groove section 1122 and is subjected to force, and when the user steps down, the arc-shaped groove section 1123 is subjected to force, thereby improving stability.

[0038] In this embodiment, a first sliding cavity 1571 is defined on the second connecting seat 141 along the length of the chute 112. The first sliding cavity 1571 is cylindrical in shape. Furthermore, a plurality of second sliding cavities 1572 are defined on the second connecting seat 141, each communicating with and perpendicular to the first sliding cavity 1571. Each second sliding cavity 1572 is inclined relative to one another and extends through the second connecting seat 141 toward a side away from the first sliding cavity 1571, such that each second sliding cavity 1572 is inclined in a different direction relative to the second connecting seat 141. In this embodiment, at least one second sliding cavity 1572 is inclined toward the arcuate chute section 1123 and extends through the sidewall of the arcuate chute section 1123. At least one second sliding cavity 1572 is inclined toward the terraced chute section 1122 and extends through the sidewall of the terraced chute section 1122. Furthermore, each second sliding cavity 1572 extends from the first sliding cavity 1571 toward the inner wall of the corresponding chute 112. Preferably, in this embodiment, four second sliding cavities 1572 are provided, wherein two second sliding cavities 1572 are respectively opened obliquely toward the two side walls of the step-shaped slide groove 112, wherein the two second sliding cavities 1572 are both opened along the thickness direction of the base 11 toward the bottom of the arc-shaped groove section 1123, and two second sliding cavities 1572 are opened along the side walls of the step-shaped groove section 1122 and are located between the two outer second sliding cavities 1572, and each second sliding cavity 1572 is arranged at equal intervals along the length direction of the base 11 to make the force distribution more uniform.

[0039] In this embodiment, to ensure the firmness between the first connecting seat 121 and the chute 112, and between the second connecting seat 141 and the chute 112, two chute 112, first connecting seat 121, second connecting seat 141, and upright post 142 are each provided. The two chute 112 are arranged parallel to each other along the width direction of the base 11. The two first connecting seats 121 are fixedly connected to the front baffle 122 after passing through the chute 112. The two second connecting seats 141 respectively pass through the two chute 112 and are respectively connected to the two upright posts 142. The second connecting seat 141 extends upward, passes through the chute 112, and is fixedly connected to the upright post 142. To prevent the presence of column 142 from increasing the sliding difficulty of second connector 141, column 142 has an elliptical cross-section, with its major axis parallel to slot 112 and its minor axis equal to or less than the width of slot 112. This prevents contact between column 142 and slot 112, which would otherwise increase friction. A third sliding cavity 1573 is recessed on the rear side of column 142, facing the front. The bottom of third sliding cavity 1573 extends downward and connects to first sliding cavity 1571. A fourth sliding cavity 1574, also cylindrical, is located in the center of the front inner wall of third sliding cavity 1573, extending along the length of base 11.

[0040] The rear side surfaces of the rear baffle 143 are fixedly connected to the front side surfaces of the pillars 142. The length direction of the rear baffle 143 is along the width direction of the base 11, and the width direction of the rear baffle 143 is relatively inclined along the thickness direction of the base 11. The two side edges of the rear baffle 143 on the left and right sides are curved toward the front to facilitate contact with the user's heels.

[0041] In this embodiment, there is a drainage gap 18 between the bottom of the front baffle 122, the shoelace 131 and the rear baffle 143 and the top surface of the base 11, so that the front baffle 122, the shoelace 131 and the rear baffle 143 do not contact the base 11. The front baffle 122 is separated from the base 11 by the first connecting part, the shoelace 131 is separated from the base 11 by the connecting rope 133, and the rear baffle 143 is separated from the base 11 by the column 142. When the user walks, when water overflows the base 11, it can be discharged from the drainage gap 18 evenly without accumulating in the wearing space, thereby avoiding the user's feet from being soaked in water for a long time.

[0042] like Figure 5 and Figure 6 As shown, the adjustment portion 15 includes a moving shaft 151 slidably arranged in the first sliding cavity 1571, a latch 152 movably inserted into the second sliding cavity 1572, a second spring 153 sleeved on the latch 152 and connected to the latch 152 and the second sliding cavity 1572 at both ends, a pressing block 154 slidably arranged in the third sliding cavity 1573 along the length direction of the slide groove 112 and connected to the moving shaft 151, a third sliding rod 155 movably arranged in the third sliding cavity 1573 along the length direction of the slide groove 112, and a third spring 156 sleeved on the third sliding rod 155. The first sliding cavity 1571 enables the moving shaft 151 to slide in the first sliding cavity 1571 along the length direction of the base 11, and the latch 152 can slide in the second sliding cavity 1572 along the length direction of the second sliding cavity 1572. The second spring 153 and the third spring 156 are both in a compressed state. The second spring 153 causes the latch 152 to always move toward the side of the first sliding cavity 1571 and squeeze the movable shaft 151 in the first sliding cavity 1571. The push block 154 can slide back and forth along the length direction of the base 11 in the third sliding cavity 1573. The third spring 156 presses the push block 154 and always squeezes the push block 154 backward. The user can press the push block 154 toward the front side of the third sliding cavity 1573 to make the push block 154 slide forward, and the movable shaft 151 connected to the push block 154 slides in the first sliding cavity 1571 accordingly. When the push block 154 is released, the third spring 156 squeezes the push block 154 backward to make the push block 154 and the movable shaft 151 retract.

[0043] In this embodiment, the movable shaft 151 is cylindrical and is keyed to the first sliding cavity 1571 so as to slide only along the length direction of the base 11. An inner groove 1511 opened along the length direction of the slide groove 112 is provided at the position of the movable shaft 151 corresponding to each pin 152 and the second sliding cavity 1572. The length of the inner groove 1511 is greater than the diameter of the pin 152. The inner groove 1511 is shallower in depth from the front to the back and has a shallow end 1512 located on the front side and a deep end 1513 located on the back side respectively. The length of the first sliding cavity 1571 is greater than the length of the movable shaft 151 so that there is a first moving space in the first sliding cavity 1571 for the movable shaft 151 to move. The length of the latch 152 is greater than the length of the second sliding cavity 1572 and is less than or equal to the depth of the deep end 1513 of the inner end and the length of the second sliding cavity 1572. The length of the latch 152 is greater than the sum of the depth of the shallow end 1512 of the inner groove 1511 and the length of the second sliding cavity 1572. The length of the inner groove 1511 is equal to the length of the first moving space. A second moving space is provided between the front inner wall of the third sliding cavity 1573 and the front side surface of the push block 154 for the push block 154 to slide in the third sliding cavity 1573. The length of the second moving space in the length direction of the base 11 is equal to the length of the first moving space. One end of the third slide bar 155 is slidably disposed within the fourth slide cavity 1574 along the length of the base 11. The length of the third slide bar 155 is greater than the distance between the opening of the fourth slide cavity 1574 and the rear side of the third slide cavity 1573 along the length of the base 11, ensuring that the front end of the third slide bar 155 is always located within the fourth slide cavity 1574. The fourth slide cavity 1574 defines a third movable space for the third slide bar 155 to slide, and the length of the third movable space is equal to the length of the first movable space. Preferably, when the latch 152 slides to the shallow end 1512 of the inner groove 1511, the portion of the latch 152 that extends outside the second slide cavity 1572 is a non-slip pad. The non-slip pad is made of rubber or silicone and is fixedly adhered to the latch 152. This pad increases friction between the latch 152 and the slide groove 112 when the latch 152 abuts against the slide groove 112, thereby enhancing the retaining effect and preventing the latch 152 from slipping and affecting the retaining effect. Preferably, a plurality of equally spaced slots are provided on the inner wall of the slide groove 112 at positions corresponding to the positions of the latches 152 along the length direction of the base 11, and each slot is used for allowing one end of the latch 152 away from the first sliding cavity 1571 to pass through it to better limit the movement of the second connecting seat 141.

[0044] When in use, the third spring 156 makes the pressing block 154 located at the rear side of the third sliding cavity 1573 and the moving shaft 151 located at the rear side of the third sliding cavity 1573. At this time, the latch 152 is located in the shallow end 1512, and the end of the latch 152 away from the inner groove 1511 passes through the second sliding cavity 1572 and is pressed against the inner wall of the sliding groove 112 under the pressure of the inner groove 1511. At this time, the entire second connecting seat 141 cannot move in the sliding groove 112. Under the support of the elastic force of the second spring 153 and the third spring 156, the rear foot 141 is restricted. When the length of the wearing space needs to be adjusted, the push button 154 is pressed forward to slide the movable shaft 151 forward, causing the deep end 1513 of the inner groove 1511 to gradually approach the latch 152 until the latch 152 is located within the deep end 1513 and the end of the latch 152 away from the inner groove 1511 is located within the second sliding cavity 1572. At this time, the rear foot 14 can be slid freely, and the latch 152 no longer presses against the inner wall of the slide 112, making adjustment easier. By releasing the push button 154, the latch 152 can be repositioned in the second connecting seat 141. The entire slide 112 and the adjustment unit 15 can adjust the size of 30-42.

[0045] Example 2

[0046] The footrest device 1 includes a base 11 fixedly connected to the top surface of the floating device 2 for the user to step on, a front foot portion 12 disposed at the front end of the base 11 for restraining the toes, and a shoe buckle portion 13 disposed in the middle of the base 11 for restraining the instep. The front foot portion 12 is fixedly mounted on the base 11, and the shoe buckle portion 13 is detachably connected to the base 11. The spacing between the front foot portion 12 and the shoe buckle portion 13 can be adjusted by adjusting the position of the shoe buckle portion 13. The front foot portion 12 restrains the user's front foot, and the shoe buckle portion 13 restrains the user's back foot, thereby ensuring a secure connection between the user's foot and the footrest device. It should be noted that the structures of the front foot portion 12, the shoe buckle portion 13, and the base 11 are substantially the same as those in the first embodiment and will not be further described here.

[0047] Example 3

[0048] The footrest device 1 includes a base 11 fixedly connected to the top surface of the floating device 2 for the user to step on, a front foot portion 12 disposed at the front end of the base 11 for restraining the toes, a rear foot portion 14 movable along the length of the base 11 at the rear end of the base 11, and an adjustment portion 15 disposed on the rear foot portion 14 for limiting the movement of the rear foot 14. The front foot portion 12 and the rear foot portion 14 are both slidably mounted on the base 11. The adjustment portion 15 adjusts the distance between the front foot portion 12 and the rear foot portion 14. The front foot portion 12 restrains the user's front foot, and the rear foot portion 14 restrains the user's rear foot, thereby ensuring a secure connection between the user's foot and the footrest device. It should be noted that the structures of the front foot portion 12, the rear foot portion 14, the adjustment portion 15, and the base 11 are substantially the same as those of the first embodiment and will not be further described here.

[0049] like Figures 1 to 3 As shown, in this embodiment, the floating device 2 includes a front sole 21 and a rear sole 22, both of which are hollow. The front sole 21 is located at the front, and the rear sole 22 is located at the rear. Multiple sealed cavities are formed within the front and rear soles 21, 22, separated by partitions 24. The outer surfaces of the front and rear soles 21, 22 are streamlined to further reduce water resistance and facilitate propulsion. It should be noted that the structure of the floating device 2 is not limited to that of this embodiment and may be replaced with other structures. For example, the floating device 2 may be configured as an airbag as described in the patent mentioned in the background art to support the footrest device 1 in floating on the water.

[0050] In this embodiment, the front sole 21 includes a first floating section 211 connected to the base 11 of the foot-operated device 1 and a first lower floating section 212 located below the first floating section 211. The first floating section 211 is widened downward and outwardly in an arc from a side close to the base 11 relative to the base 11, and the outer surface of the entire first floating section 211 is streamlined; the first lower floating section 212 is narrowed downward and inwardly in an arc from a side close to the first floating section 211, and the outer surface of the entire first lower floating section 212 is streamlined to match the first floating section 211. The outer surface of the front side of the entire front sole 21 is consistent with the shape of the bow of an existing ship, and the first floating section 211 and the first lower floating section 212 are integrally formed and sequentially connected to be streamlined, that is, the front side surfaces of the first floating section 211 and the first lower floating section 212 form a smooth arc surface to reduce the resistance of water to the floating device 2. The first upper buoyancy section 211 is wider than the first lower buoyancy section 212 to ensure that the first lower buoyancy section 212 can more easily overcome water resistance. The first upper buoyancy section 211 is used to provide more stable floating of the footrest device 1. The rear sole 22 includes a second upper buoyancy section 221 connected to the base 11 and integrally connected to the first upper buoyancy section 211, and a second lower buoyancy section 222 located below the second upper buoyancy section 221. The second upper buoyancy section 221 curves downward and outward relative to the base 11, widening near the base 11. The entire outer surface of the second upper buoyancy section 221 is streamlined. The second upper buoyancy section 221 and the second lower buoyancy section 222 are integrally formed and sequentially connected to form a streamlined shape. Specifically, the front sides of the second upper buoyancy section 221 and the second lower buoyancy section 222 form a smooth curved surface to reduce water resistance on the floating device 2. Compared with the second lower floating section 222, the overall width of the second upper floating section 221 is greater than that of the second lower floating section 222 to ensure that the second lower floating section 222 can more easily break through the resistance of water, while the second upper floating section 221 is used to make the pedal device 1 float more stably and safely.

[0051] A first concave arc surface 213 is formed on the side of the first lower floating section 212 facing the rear sole 22, and the bottom of the first lower floating section 212 is curved toward the rear; the front side surface of the second lower floating section 222 has a first curved surface 223 that is convex downward and toward the first concave arc surface 213, and a second curved surface 224 that is concave upward and toward the rear, the first curved surface 223 is close to the first concave arc surface 213 and is sequentially connected to the second upper floating section 221, and the second curved surface 224 is away from the second concave arc surface 225 and is sequentially connected to the first curved surface 223, so that the first concave arc surface 213 and the first curved surface 224 are sequentially connected to the first curved surface 223, so that the first concave arc surface 213 and the first curved surface 224 are sequentially connected to the second upper floating section 221, Surface 223 and second curved surface 224 form a propulsion space. When a user puts on the footrest device 1 and steps onto the water, water enters the propulsion space and ripples. Part of the water flow, blocked by the first curved surface 223 and the second curved surface 224, increases the interaction of the water flow within the propulsion space, causing the water flow to act on the first concave curved surface 213, providing propulsion to the floatation device 2. Furthermore, when the user lifts one foot, the first concave curved surface 221 and the second concave curved surface 225 of the floatation device 2 slide backward with the lifted foot, providing a certain amount of propulsion to the floatation device 2 on the other foot. A second concave curved surface 225, with a widened, forward-curved middle portion, is formed on the side of the second upper buoyancy section 221 and the second lower buoyancy section 222 away from the front sole 21. The bottom of the second lower buoyancy section 222 curves backward, increasing the contact area between the floatation device 2 and the water surface when stepping onto the water. This allows the rippled water flow to pass through the second concave curved surface 225, providing a certain amount of propulsion to the floatation device 2. Preferably, a convex edge 23 is provided on the outer contour surfaces of the first upper floating section 211 and the first lower floating section 212, as well as the outer contour surface of the second lower floating section 222, along a symmetric line in the length direction of the base 11. The convex edge 23 is convex outward and narrows to separate the first upper floating section 211 and the first lower floating section 212 into a symmetrical first left side and a first right side. The outer surface of the front sole 21 is composed of the first left side, the first right side, and the first concave arc surface 213. The second upper floating section 221 and the second lower floating section 222 are separated into a symmetrical second left side and second right side, and the outer surface of the rear sole 22 is composed of the second left side, the second right side, and the second concave arc surface 225. The convex edge 23 enables the floating device 2 to better divide the incoming water flow and overcome the water resistance. Compared with the patent mentioned in the background art, the floating device 2 of this embodiment provides a boosting force for walking on water, reducing the labor of the user and saving more effort.

[0052] In this embodiment, the partitions 24 separate the first upper buoyancy section 211, the first lower buoyancy section 212, the second upper buoyancy section 221, and the second lower buoyancy section 222 into four independent and sealed cavities. If any cavity leaks, the remaining cavities prevent the floatation device 2 from sinking, or reduce its sinking speed, allowing the user to escape quickly. The entire floatation device 2 is 2 mm thick, while the partitions 24 are 4 mm thick. The partitions 24 create multiple cavities within the front and rear soles 21, 22, ensuring safety while increasing the strength of the floatation device 2.

[0053] In this embodiment, the base 11, first connecting seat 121, front baffle 122, shoelace 131, second connecting seat 141, column 142, rear baffle 143, front sole 21, and rear sole 22 are all made of plastic, epoxy resin, etc., which not only reduces production cost but also is lightweight. The connecting rope 133 can be made of flexible materials such as rubber and silicone. When in use, two water walking shoes are provided. The entire water walking shoe is 600mm long, 280mm wide, and 320mm high, with a displacement of approximately 0.03m³ x 2 pairs, and can support 60kg of buoyancy. Compared to the airbag in the background patent, the front sole 21 and rear sole 22 of this embodiment are made of plastic, which is more durable, more stable, and safer.

[0054] The present invention also provides a balancing paddle, which is provided with two balancing paddles and each includes a support rod and a funnel-shaped paddle body provided at one end of the support rod. The paddle body is hollow inside and has an open bottom. The open end of the paddle body is the large end of the paddle body. One end of the support rod is connected to the small end of the paddle body. The other end of the support rod is provided with a handle for the user to hold with his hand. The outer surface of the handle can be provided with a non-slip anti-skid cover. The anti-skid cover can be made of materials such as rubber and silicone to prevent the user from slipping when holding the balancing paddle. The support rod is arranged in the middle of the interior, which is not only light and easy to hold, but also, when the balancing paddle falls into the water, the hollow support rod can make it float on the water surface for easy picking up. Preferably, a baffle is provided in the paddle body in a direction perpendicular to the support rod to separate the slurry cavity into a sealed first cavity close to the support rod and a second cavity away from the support rod. The bottom of the second cavity is the open end. The first cavity provides the paddle body with a certain buoyancy, while the second cavity can first contact the water when the user presses the paddle body part to the water surface. After the water is poured into the second cavity, it hits the baffle to provide an upward reaction force to the paddle body, thereby providing assistance to the user when walking on the water, making it easier for the user to maintain balance or adjust balance. It can also be used as a propulsion device. Preferably, a threaded section with an external thread is provided on the end of the support rod away from the anti-slip sleeve, and a pipe mouth with an internal thread is fixedly provided at the small end of the paddle body. When connected, the threaded section is threadedly connected to the pipe mouth to facilitate the disassembly and assembly of the paddle body and the support rod.

[0055] One embodiment of the length-adjustable water walking shoe of the present invention works as follows: first, after adjusting the position of the shoelace 131 according to the size of the user's foot, the toes are placed against the front baffle 122. By pressing the button 154, the pin 152 slides to the deep end 1513 of the inner groove 1511, then pushes the column 142 and causes the rear baffle 143 to rest against the heel. Then, the button 154 is released, allowing the second spring 153 to drive the pin 152 out of the second sliding cavity 1572 and press against the inner wall of the slide groove 112, thereby limiting the movement of the second connecting seat 141. After both feet are wearing the footrest device 1, the user can enter the water and use the two balancing paddles to walk on water.

Claims

1. A length-adjustable water walking shoe comprising a footrest for a user to insert their foot into and a flotation device disposed at the bottom of the footrest for allowing the footrest to float on the water, characterized in that: The footrest device is provided with a wearing space with adjustable length for allowing the user's feet to penetrate therein and restraining the user's feet.

2. The length-adjustable water walking shoe according to claim 1, characterized in that: The footrest device includes a base fixedly connected to the top surface of the floating device for the user to step on, and a rear foot portion movably arranged on the base along the length direction of the base; the footrest device also includes a front foot portion arranged on the front end of the base for restraining the front end of the user's foot and / or a shoe buckle portion arranged in the middle of the base for restraining the instep; the rear foot portion and the front foot portion and / or the shoe buckle portion can move toward or away from each other along the length direction of the base, and the wearing space is formed by the base, the rear foot portion, the front foot portion and / or the shoe buckle portion.

3. The length-adjustable water walking shoe according to claim 2, characterized in that: A slide groove is formed on the top surface of the base, and the slide groove is distributed along the length direction of the base. The bottom of the front foot and the rear foot are both slidably set in the slide groove; there is a tensioning part located in the slide groove between the front foot and the rear foot and adjusting the distance between the front foot and the rear foot; the tensioning part includes a first spring arranged in the slide groove along the length direction of the slide groove and a first slide rod passed through the first spring, the two ends of the first spring are respectively connected to the bottom of the front foot and the rear foot, one end of the first slide rod is connected to the rear foot, and the other end is movably passed through the front foot.

4. The length-adjustable water walking shoe according to claim 3, characterized in that: The front foot portion includes a first connecting seat slidably arranged in a slide groove, the first spring is connected to the first connecting seat, the first sliding rod is movably arranged in the first connecting seat along the length direction of the base, and the top of the first connecting seat passes upward out of the slide groove and is bent toward the side of the shoe buckle portion to form a front baffle for covering the user's toes.

5. The length-adjustable water walking shoe according to claim 3, characterized in that: The shoe buckle portion includes a shoelace for covering the instep of the user, and the shoelace is detachably connected to the base; The base is provided with sliding grooves distributed along its length direction on both lateral sides, a second slide bar is slidably provided in the sliding groove, a plurality of perforations distributed along its length direction are provided on the upper side wall of the sliding groove, each of the perforations passes through the upper side wall from top to bottom, and a slit connected to the perforation is provided on the outer side surface of the upper side wall; at least one connecting rope is provided on each side of the shoelace, the connecting rope passes through the perforation and enters the sliding groove to be connected to the second slide bar of the slide bar; the second slide bar can also detach from the sliding groove along the width direction of the base and drive the connecting rope to leave the perforation through the slit, so that the shoelace is in a flip-up shape; The second sliding rod is made of a material that can be magnetically attracted. A magnetic attraction component for magnetically attracting the second sliding rod is provided in the sliding groove or on the base near the bottom wall of the sliding groove. The magnetic attraction component is distributed along the length direction of the sliding groove.

6. The length-adjustable water walking shoe according to claim 4, characterized in that: The rear foot portion includes a second connecting seat that slides through the slide groove, the other ends of the first slide rod and the first spring are connected to the second connecting seat, the top of the second connecting seat extends upward and passes through the slide groove to form a column, and a rear baffle is provided on the side of the column facing the front foot portion for surrounding and resting against the user's heel.

7. The length-adjustable water walking shoe according to claim 6, characterized in that: The pedal device also includes an adjustment portion arranged on the rear foot; a first sliding cavity is opened on the second connecting seat along the length direction of the slide groove, and a plurality of second sliding cavities are opened on the second connecting seat, which are respectively connected to and perpendicular to the first sliding cavity, and each of the second sliding cavities is inclined to each other and passes through the second connecting seat toward the side away from the first sliding cavity; a third sliding cavity connected to the first sliding cavity is recessed on the rear side surface of the column toward the front side; the adjustment portion includes a movable shaft slidably arranged in the first sliding cavity, a pin movably arranged in the second sliding cavity, a second spring sleeved on the pin and connected at both ends to the pin and the second sliding cavity respectively, and a spring along the length of the slide groove. The cam is secured to the cam face and is designed to engage the driver of the vehicle when the vehicle is in a condition of low speed rotation and when the vehicle is in a condition of low speed rotation.

8. The length-adjustable water walking shoe according to claim 7, characterized in that: The slide groove has a square groove section, a trapezoidal groove section and an arcuate groove section connected in sequence from top to bottom. At least one second sliding cavity penetrates the side wall of the arcuate groove section, and at least one second sliding cavity penetrates the side wall of the trapezoidal groove section. The first connecting seat and the second connecting seat are adapted to the slide groove.

9. The length-adjustable water walking shoe according to claim 6, characterized in that: A drainage gap is provided between the bottom of the front baffle shoe buckle portion and the bottom of the rear baffle and the top surface of the base.

10. The length-adjustable water walking shoe according to claim 1, characterized in that: The floating device includes a front sole and a rear sole both of which are hollow inside, and a plurality of sealed cavities are formed inside the front sole and the rear sole by partitions; The front sole includes a first upper floating section connected to the bottom of the pedal device and a first lower floating section located below the first upper floating section, the first upper floating section is widened and streamlined from a side close to the pedal device in a downward and outward curvature relative to the pedal device, the first lower floating section is narrowed and streamlined from a side close to the first upper floating section in a downward and inward curvature, a first concave arc surface with a middle portion curving forward is formed on a side of the first lower floating section facing the rear sole, and the bottom of the first lower floating section is curved backward; The rear sole includes a second upper floating section connected to the bottom of the pedal device and integrally connected to the first upper floating section, and a second lower floating section located below the second upper floating section, the second upper floating section being widened and streamlined by being curved downward and outward relative to the pedal device near the pedal device, the second lower floating section being narrowed and streamlined by being curved downward and inward near the second upper floating section, a second concave arc surface with a middle portion widened toward the front arc is formed on the side of the second upper floating section and the second lower floating section away from the front sole, and the bottom of the second lower floating section is curved toward the rear; Convex edges are provided along the symmetry line on the outer contour surfaces of the first floating section and the first floating section, as well as the outer contour surface of the second floating section.

Images