Foot tightening structure and traction boot cover

Abstract

The invention discloses a foot lacing structure. The foot lacing structure comprises a boot sleeve, a lacing belt, a connecting part and a plurality of through holes. The through hole is formed in the boot cover, the lacing belt is a flexible belt-shaped body, and the lacing belt penetrates through the through hole to extend into and out of the boot cover. And the lacing belt extends into the part inside the boot cover from the through hole and is used for binding the foot of a user inside the boot cover. The part, extending out of the boot sleeve from the through hole, of the lacing belt surrounds the circumferential surface of the boot sleeve along the outer portion of the boot sleeve, and the two ends of the lacing belt are connected through connecting parts to close and lace the containing space. The foot of a user is prevented from falling off from the boot cover through the binding effect of the binding belt inside and outside the boot cover.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a foot tightening structure and a traction boot cover. Background Art

[0002] During hip joint surgery, a traction device is required to open the hip joint. The traction device includes a traction bed, a traction device, and a traction boot. The traction boot includes an outer boot and a boot cover. The boot covers the foot and calf, and the outer boot is located outside the boot cover, which is connected to the traction device after tightening the boot cover. During surgery, the traction boot worn by the user is pulled by the traction device to open the hip joint.

[0003] The traction boot covers include outer boot covers and boot covers. The boot covers are in direct contact with the feet and calves and are made of soft materials to protect the feet and calves. The outer boot covers are made of hard materials. The use of hard materials in the outer boot covers can apply the traction force of the traction device to the feet and calves at the same time, and prevent the two from relative displacement. The shapes of the feet and calves of users of different body shapes are different. If outer boot covers of various shapes are used, the cost of use will be greatly increased. Usually, larger outer boot covers are used. When the user is smaller, the larger outer boot covers are adjusted to a smaller size to restrain the boot covers. However, the outer boot covers are made of hard materials. When they are adjusted from a large size to a small size, the restraining effect on the boot covers is also limited, which will cause insufficient pressure on certain parts of the boot covers, resulting in insufficient friction between the boot covers at that part and the feet and calves, and the feet and calves will fall off the boot covers during the traction process. Summary of the invention

[0004] The purpose of the present application is to overcome the above-mentioned defects or problems existing in the background technology and to provide a tightening structure and a traction boot cover for preventing the foot and the calf from falling off.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A foot tightening structure comprises: a boot cover, which is provided with a accommodating space defined by its side walls and bottom wall and used to accommodate the foot, the side wall is connected to the bottom wall and is suitable for moving relative to the bottom wall to open or close the accommodating space; the boot cover is provided with two groups of through hole groups penetrating the inside and outside, each of the through hole groups includes two through holes corresponding to positions; a tightening belt, which penetrates the two through holes of one of the through hole groups from the inside to the outside and then to the inside, and then its two ends are respectively penetrated through the two through holes of the other through hole group from the inside to the outside in a cross shape, and is suitable for being wrapped around the outer surface of the boot cover to tighten the side wall; and a connecting component, which is provided on the tightening belt and detachably connects the two ends of the tightening belt, and is suitable for connecting the two ends of the tightening belt after the tightening belt tightens the side wall to keep the accommodating space closed.

[0007] Furthermore, the side wall is provided with a forefoot portion, and the two through hole groups include a first through hole group and a second through hole group, the first through hole group includes a first through hole and a second through hole respectively corresponding to the bottom wall; the second through hole group includes a third through hole and a fourth through hole respectively corresponding to the forefoot portion.

[0008] Furthermore, the side wall is also provided with a heel portion, an ankle portion and a calf portion. After the two ends of the tightening belt extend from the third through hole and the fourth through hole to the outside of the boot cover, they are successively extended along the forefoot portion to the bottom wall, and further extended along the bottom wall to the heel portion and ankle portion on the other side of the side wall, and then surround the calf portion.

[0009] Furthermore, the calf portion is provided with a fixing through hole group, which includes a first fixing through hole and a second fixing through hole at two corresponding positions, and the two ends of the tightening belt pass through the two fixing through holes in the calf portion in sequence.

[0010] Furthermore, the connecting component is Velcro.

[0011] Furthermore, the tightening belt is elastic.

[0012] A traction boot cover comprises an outer boot cover, wherein the outer boot cover is located on the outside of any one of the above-mentioned foot tightening structures, and the two together restrain the user's foot and calf.

[0013] Compared with the prior art, the above solution has the following beneficial effects:

[0014] In the first technical solution, the side wall and the bottom wall of the boot cover cooperate to form a storage space for accommodating the foot, and the side wall can be opened or closed. After the side wall is opened, the foot and the calf can be extended into the storage space from the opening of the side wall, and then the side wall is closed to close the storage space. The structure with the open side wall increases the space for the foot and the calf to enter the storage space, making it more convenient to wear the boot cover and reducing the movement of the user's lower limbs during the wearing process. The boot cover is provided with four through holes and tightening belts that correspond to each other in pairs and pass through the inside and outside of the boot cover. The through holes pass through the inside and outside of the boot cover, and the tightening belt can extend into and out of the boot cover by passing through the four through holes.

[0015] The two ends of the tightening belt cross-bind the user's feet inside the boot cover. The cross structure can better bind the user's feet to the boot cover to prevent the feet from falling off the boot cover. The tightening belt wraps around the side wall of the boot cover outside the boot cover to tighten the boot cover and the user's feet, and increases the friction between the contact surfaces of the two by increasing the pressure of the boot cover on the user's foot, thereby preventing the user's feet from falling off the boot cover.

[0016] The tightening belt of the solution not only restrains the user's foot in the boot cover inside, but also tightens the foot and the boot cover together outside. The tightening belt inside and outside the boot cover prevents the user's foot from falling off or shifting from the boot cover. At the same time, the tightening belt can be replaced directly without the aid of other tools, which is convenient and quick.

[0017] The two ends of the tightening belt are detachably connected through a connecting component, and the accommodating space is kept closed, so that the restraining effect of the tightening belt can be continuously applied to the boot cover and the foot and calf of the user.

[0018] In the second technical solution, the first through hole and the second through hole are located on the left and right sides of the bottom wall, and the third through hole and the fourth through hole are located on the left and right side walls of the forefoot. The tightening belt extends from the bottom wall of the boot cover into the boot cover, which will not affect the structure of the boot cover opening. The tightening belt extends from the bottom wall into the boot cover and extends from the side wall of the boot cover. After one end of the tightening belt enters the inside of the boot cover from the first through hole on the left, it sequentially covers the bottom, side, and back of the foot and then extends from the fourth through hole on the right; after the second end of the tightening belt enters the inside of the boot cover from the second through hole on the right, it sequentially covers the bottom, side, and back of the foot and then extends from the third through hole on the left. This structure allows the tightening belt to better tighten the user's foot inside the boot cover, and even if the user's feet are of different shapes and sizes, it can produce a good restraint effect on the foot in the accommodating space.

[0019] In the third technical solution, after the tightening belt extends from the third through hole and the fourth through hole to the outside of the boot cover, it does not wrap around the upper end of the boot cover, and extends along the side of the forefoot to the bottom in sequence, and further extends to the heel and ankle on the other side. Combined with the second technical solution, the tightening belt does not wrap around the upper end of the boot cover when it is inserted into the boot cover, stretched out of the boot cover, and wrapped around the boot cover outside. The two ends of the tightening belt surround the calf. When in use, the tightening belt located on the calf can be loosened, and the upper end of the boot cover can be completely opened, making it convenient to put the user's foot and calf into the boot cover. This solution prevents the user's foot and calf from falling off the boot cover, and does not prevent the user's foot and calf from extending into the boot cover from the upper end of the boot cover.

[0020] In the fourth technical solution, after the two ends of the tightening belt extend from the forefoot part of the boot cover, they extend in different directions and pass through the first fixing through hole and the second fixing through hole from different directions to fix the tightening belt to the calf part of the boot cover. The first through hole fixes the tightening belt to the forefoot part, and the second through hole fixes the tightening belt to the calf part. This structure can prevent the tightening belt from moving inside and outside the boot cover. At the same time, when the boot cover is not in use, the tightening belt can also be fixed to the foot and calf part of the boot cover. When in use, there is no need to readjust the position of the tightening belt on the boot cover, which is convenient for directly wearing the boot cover.

[0021] In the fifth technical solution, Velcro is used as the connecting component. When adjusting the binding effect of the tightening belt, the connecting component is usually disassembled multiple times to achieve the best binding effect. Velcro is easy to disassemble, which can reduce the movement of the user's feet and calves during the adjustment process and prevent the user from being injured during the adjustment process. Velcro is set on the two overlapping surfaces of the tightening belt. By loosening the Velcro, the tightening belt can be loosened and the upper end of the boot cover can be opened. Velcro is soft in texture, so that the two ends of the tightening belt can quickly pass through the through hole and the fixed through hole.

[0022] In the sixth technical solution, the tightening belt needs to be stretched and contracted frequently, and its elasticity can make it more stable to use. At the same time, the elastic tightening belt can automatically rebound after tightening the foot and the boot cover, maintaining the tightness of the foot and the boot cover, and better continuously applying pressure to the foot and the boot cover.

[0023] In the seventh technical solution, the outer boot cover is located outside any of the above-mentioned foot tightening structures to form a traction boot cover together. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiment, the following briefly introduces the drawings required for use:

[0025] Figure 1 is a schematic diagram of a boot cover;

[0026] Figure 2 This is a schematic diagram of the opening of the top of the boot cover;

[0027] Figure 3 The figure is a bottom view of the boot cover and the tightening belt;

[0028] Figure 4 It is a side view of the boot cover and the tightening belt;

[0029] Figure 5 This is a schematic diagram of the back of the boot cover and the tightening belt;

[0030] Figure 6 A schematic diagram of a traction boot cover.

[0031] Description of main reference numerals:

[0032] The tightening belt 1; the boot cover 2; the outer boot cover 3; the forefoot portion 20; the heel portion 21; the ankle portion 22; the calf portion 23; the first through hole 11; the second through hole 12; the third through hole 13; the fourth through hole 14; the first fixing through hole 31; and the second fixing through hole 32. DETAILED DESCRIPTION

[0033] In the claims and the description, unless otherwise defined, the terms "first", "second" or "third", etc. are intended to distinguish different objects rather than to describe a specific order.

[0034] In the claims and the specification, unless otherwise defined, terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings and are only for the convenience of simplifying the description and do not imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction.

[0035] In the claims and the specification, unless otherwise defined, the term "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method in which there is no displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0036] In the claims and the description, unless otherwise defined, the terms "includes", "has" and their variations mean "including but not limited to".

[0037] In the claims and the specification, unless otherwise defined, the term "provided with" means that the technical feature located thereafter is a part of the technical feature located therefor.

[0038] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings.

[0039] See also Figure 1 , Figure 2, the boot cover 2 is provided with a storage space defined by its side wall 5 and bottom wall 6 and used to accommodate the foot, and the side wall 5 is connected to the bottom wall 6 and is suitable for moving relative to the bottom wall 6 to open or close the storage space. The boot cover 2 is made of a flexible material and is provided with a side wall 5 and a bottom wall 6, which form a storage space for accommodating the foot. The bottom wall 6 covers the bottom of the foot, and the side wall 5 covers the side and top of the foot. In this embodiment, the side wall 5 extends to the upper end to form a storage space for accommodating the foot and the calf with the bottom wall 6. The side wall 5 extends from the top of the foot to the calf opposite to the foot and is provided with an opening structure, and the side wall 5 on the left side of the opening structure is provided with a left side wall and the side wall 5 on the right side of the opening structure is provided with a right side wall. Left and right are directions identified based on the orientation of the boot cover 2, and the direction of the boot cover 2 toward the little finger is left, and the direction toward the thumb is right. Up and down are directions identified based on the orientation of the boot cover 2, and the direction in contact with the ground is down, and the direction away from the ground is up. Opening the accommodation space means that the upper end of the left wall moves to the left, and the upper end of the right wall moves to the right, so as to open the upper opening structure of the side wall 5. Closing the accommodation space means that the upper end of the left wall moves to the right, and the upper end of the right wall moves to the left, so as to close the upper opening structure of the side wall 5. When wearing, the upper end of the side wall 5 is opened, the foot and the calf are extended into the accommodation space from the upper end of the side wall 5, and then the side wall 5 is closed to cover the foot and the calf.

[0040] The boot cover 2 is provided with two groups of through holes that penetrate inside and outside thereof, and each through hole group includes two through holes that correspond in position. The through holes connect the inside and outside of the accommodating space of the boot cover 2. The boot cover 2 is provided with four through holes, two of which correspond in position, and the other two correspond in position to each other. The corresponding position means that the positions of the through holes are respectively provided on the left and right sides of the boot cover 2. Figure 2 As shown, the two through holes of one through hole group are respectively located on the left and right sides of the boot cover 2 , and the two through holes of another through hole group are also respectively located on the left and right sides of the boot cover 2 .

[0041] The tightening belt 1 passes through the two through holes of one through hole group from inside to outside and then inside, and then its two ends are crossed and pass through the two through holes of the other through hole group from inside to outside, and are suitable for wrapping around the outer surface of the boot cover 2 to tighten the side wall 5. In this embodiment, Figure 2As shown, the tightening belt 1 is a flexible band-shaped body, which is flexible and can be bent to wrap around the foot and the boot cover 2. The tightening belt 1 is a band-shaped body, and its cross-sectional size is slightly smaller than the through hole, and can pass through the through hole. One end of the tightening belt 1 extends from a through hole to the outside of the boot cover 2, and then extends from another through hole in the same through hole group to the inside of the boot cover 2. At this time, both ends of the tightening belt 1 are located in the accommodating space. One end of the tightening belt 1 extends from the through hole on the left to the through hole on the right of another through hole group, and the other end extends from the through hole on the right to the through hole on the left of another through hole group. At this time, the two ends of the tightening belt 1 cross in the accommodating space. The two ends of the tightening belt 1 form two tightening parts with the inner walls of the side wall 5 and the bottom wall 6, respectively. After the two ends of the tightening belt 1 extend from the through hole to the outside of the boot cover 2, they are wrapped along the outer surface of the side wall 5. In this embodiment, they are also wrapped along the outer surface of the bottom wall 6 to tighten the boot cover 2 to the foot and calf.

[0042] The connecting component is provided on the tightening belt 1 and can detachably connect the two ends of the tightening belt 1. It is suitable for connecting the two ends of the tightening belt 1 after the tightening belt 1 tightens the side wall 5 and the bottom wall 6 so that the accommodating space remains closed. Figure 4 As shown, the connecting parts are arranged at both ends of the tightening belt 1. After the two ends of the tightening belt 1 wrap around the side wall 5 and the bottom wall 6, the connecting parts on the two ends cooperate with each other to fix the two ends. After the two ends of the tightening belt 1 are fixed, pressure is continuously applied to the boot cover 2 to keep the accommodating space closed.

[0043] As a preferred embodiment, the side wall 5 is provided with a forefoot portion 20 covering the forefoot, and the two through hole groups include a first through hole group and a second through hole group, the first through hole group includes a first through hole 11 and a second through hole 12 respectively corresponding to the left and right sides of the bottom wall 6; the second through hole group includes a third through hole 13 and a fourth through hole 14 respectively corresponding to the left and right sides of the forefoot portion 20. Figure 2As shown, the left and right sides are directionally identified based on the orientation of the boot cover 2, with the direction of the boot cover 2 toward the little finger being the left, and the direction toward the thumb being the right. "Corresponding" refers to the symmetrical arrangement of the two through holes in the same through hole group. In this embodiment, the first through hole 11 and the second through hole 12 are symmetrically arranged on the left and right sides of the bottom wall 6 and are located at the arch of the foot. The third through hole 13 and the fourth through hole 14 are symmetrically arranged on the left and right sides of the forefoot portion 20 of the side wall 5. The first through hole 11 and the third through hole 13 are located on the left side of the boot cover 2, and the second through hole 12 and the fourth through hole 14 are located on the right side of the boot cover 2. One end of the tightening belt 1 extends from the first through hole 11 located on the bottom wall 6 to the outside of the boot cover 2, and then extends from the second through hole 12 located on the bottom wall into the accommodating space of the boot cover 2, and further extends from the third through hole 13 located on the front palm portion 20 of the side wall 5 to the outside of the boot cover 2; the other end of the tightening belt 1 extends from the fourth through hole located on the front palm portion 20 of the side wall 5 to the outside of the boot cover 2. The two ends of the tightening belt 1 are in the accommodating space of the boot cover 2, one end extends from the first through hole to the fourth through hole 14, that is, from the left side to the right side of the boot cover 2; the other end extends from the second through hole 12 to the third through hole 13, that is, from the right side to the left side of the boot cover 2. The two ends of the tightening belt 1 cross in the accommodating space.

[0044] As a preferred embodiment, the side wall 5 is further provided with a heel portion 21, an ankle portion 22 and a calf portion 23 covering the rear of the foot. After the two ends of the tightening belt 1 extend from the third through hole 13 and the fourth through hole 14 to the outside of the boot cover 2, they extend along the forefoot portion 20 of the side wall 5 to the bottom wall 6 in sequence, and further extend to the heel portion 21 and the ankle portion 22 on the other side of the side wall 5, and then surround the calf portion 23. Figure 2 , Figure 3 , Figure 4As shown, the two ends of the tightening belt 1 extend from the third through hole 13 and the fourth through hole 14 to the outside of the boot cover 2, respectively. One end of the tightening belt 1 extending from the third through hole 13 on the left side of the side wall 5 extends along the outside of the left side of the side wall 5 to the left side of the bottom wall 6, then extends from the left side to the right side of the bottom wall 6, further extends to the heel 21 and ankle 22 on the right side of the side wall 5 in sequence, and then wraps around the calf 23 from the right side to the left side at the calf 23. The other end of the tightening belt extending from the fourth through hole 14 on the right side of the side wall 5 extends along the outside of the right side of the side wall 5 to the right side of the bottom wall 6, then extends from the right side to the left side of the bottom wall 6, further extends to the heel 21 and ankle 22 on the left side of the side wall 5 in sequence, and then wraps around the calf 23 from the left side to the right side at the calf 23. The two ends of the tightening belt 1 extend from the third through hole 13 and the fourth through hole 14 respectively and then wrap around the side wall 5 and the bottom wall 6. Only the calf part 23 has an upper end opening structure wrapping around the side wall 5, and there is no upper end opening structure wrapping around the side wall 5 in other parts. The first through hole 11 and the second through hole 12 are located on the bottom wall 6. The tightening belt 1 from the first through hole 11 to the second through hole 12 is located outside the bottom wall 6 and does not wrap around the upper end opening structure of the side wall 5. After the two ends of the tightening belt 1 on the calf part 23 are released, the upper end opening structure of the boot cover 2 can be opened to allow the foot and calf to extend into the accommodation space.

[0045] As a preferred embodiment, the calf part 23 is provided with a fixing through hole group, which includes a first fixing through hole 31 and a second fixing through hole 32 at two corresponding positions, and the two ends of the tightening belt 1 pass through the two fixing through holes in the calf part 23 in sequence. Figure 2 and Figure 5 As shown, in this embodiment, the back of the calf part 23 of the boot cover 2 is provided with a first fixing through hole 31 and a second fixing through hole 32 in corresponding positions, the first fixing through hole 31 is located on the left side, and the second fixing through hole 32 is located on the right side. Both ends of the tightening belt 1 wrap around the calf part 23, one end wraps around the calf part 23 from the right side to the left side, passing through the first fixing through hole 31 and the second fixing through hole 32 in sequence, and the other end wraps around the calf part 23 from the right side to the right side, passing through the second fixing through hole 32 and the first fixing through hole 31 in sequence.

[0046] As a preferred embodiment, the detachable connecting component is a Velcro, and the two ends of the tightening belt 1 surround the calf 23 in opposite directions, and the two ends of the tightening belt 1 overlap each other at the calf 23. One of the two overlapping surfaces of the tightening belt 1 is provided with a fleece-surface Velcro, and the other is provided with a hook-surface Velcro. After the two ends of the tightening belt 1 surround the calf 23, they are fixed together by the fleece-surface Velcro and the hook-surface Velcro. After the Velcro is loosened, the two ends of the tightening belt 1 do not tighten the calf 23, and the upper end opening structure of the boot cover 2 can be opened.

[0047] As a preferred embodiment, the tightening belt is elastic. The elastic tightening belt provides good stretching and contraction capabilities and can automatically rebound after tightening to maintain the tightness of the tightening belt.

[0048] In addition, the present application also provides a traction boot cover, which includes an outer boot cover 3 and the above-mentioned foot tightening structure. Figure 6 As shown, the above-mentioned foot tightening structure is suitable for tightening the user's foot and calf under the restraint of the outer boot cover 3 on its outer side.

[0049] The present invention provides a foot tightening structure, including a boot cover 2, which is provided with a side wall 5 and a bottom wall 6, the side wall 5 and the bottom wall 6 together form a receiving space for receiving the foot and the calf, and the side wall 5 is movable relative to the bottom wall 6 to open or close the receiving space. The side wall 5 is provided with a forefoot portion 20, a heel portion 21, an ankle portion 22 and a calf portion 23. It is also provided with four through holes corresponding to each other, including a first through hole 11, a second through hole 12, a third through hole 13 and a fourth through hole 14. The first through hole 11 and the second through hole 12 are symmetrically located on the left and right sides of the bottom wall 6, and the third through hole 13 and the fourth through hole 14 are symmetrically located on the left and right sides of the forefoot portion 20. The tightening belt 1 is in the shape of a flexible belt, one end of which extends from the first through hole 11 to the outside of the boot cover 2, then extends from the second through hole 12 into the inside of the boot cover 2, and then extends from the third through hole to the outside of the boot cover 2; the other end of the tightening belt 1 extends from the fourth through hole 14 to the outside of the boot cover 2. The two ends of the tightening belt 1 form a cross in the accommodation space to jointly bind the foot. After the two ends of the tightening belt 1 extend from the third through hole 13 and the fourth through hole 14 of the forefoot 20 to the outside of the boot cover, they extend along the outside of the boot cover 2 to the bottom wall, and further extend to the other side of the heel 21, ankle 22, and calf 23 of the boot cover 2, and then wrap around the calf 23 after passing through two fixing through holes in the calf 23 in turn and fix it with Velcro. When wearing, loosen the Velcro to release the restraint of the tightening belt 1 on the calf 23 and open the accommodation space of the boot cover 2. The user's foot and calf are inserted into the boot cover 2 from the upper part, and the user's foot is passed through the two annular tightening parts. After adjusting the pressure of the tightening belt 1, the tightening belt 1 is fixed by Velcro, so that the tightening belt 1 continues to work to prevent the foot and calf from falling off or moving from the boot cover.

[0050] The above specification and description of the embodiments are used to explain the protection scope of the present application, but do not constitute a limitation on the protection scope of the present application.

Claims

1. A foot tightening structure, characterized in that: include: A boot cover (2) is provided with a receiving space defined by a side wall (5) and a bottom wall (6) and used to receive a foot, wherein the side wall (5) is connected to the bottom wall (6) and is adapted to move relative to the bottom wall (6) to open or close the receiving space; the boot cover (2) is provided with two groups of through holes penetrating the inside and outside thereof, each of the through hole groups comprising two through holes corresponding to two positions; A tightening belt (1) which passes through two through holes of one through hole group from inside to outside and then inside again, and then its two ends are respectively passed through two through holes of another through hole group from inside to outside in a cross shape, and is suitable for wrapping around the outer surface of the boot cover (2) to tighten the side wall (5); and A connecting component is provided on the tightening belt (1) and is detachably connected to the two ends of the tightening belt (1). The connecting component is suitable for connecting the two ends of the tightening belt (1) after the tightening belt (1) tightens the side wall (5) so as to keep the accommodating space closed.

2. A foot tightening structure as claimed in claim 1, characterized in that: The side wall (5) is provided with a forefoot portion (20) covering the front part of the foot, and the two through hole groups include a first through hole group and a second through hole group, the first through hole group includes a first through hole (11) and a second through hole (12) respectively corresponding to the bottom wall (6); the second through hole group includes a third through hole (13) and a fourth through hole (14) respectively corresponding to the forefoot portion (20).

3. A foot tightening structure as claimed in claim 2, characterized in that: The side wall (5) is provided with a heel portion (21), an ankle portion (22) and a calf portion (23) covering the rear of the foot. After the two ends of the tightening belt (1) extend from the third through hole (13) and the fourth through hole (14) to the outside of the boot cover (2), they are successively extended along the forefoot portion (20) to the bottom wall (6), and further extended along the bottom wall (6) to the heel portion (21) and the ankle portion (22) on the other side of the side wall (5), and then surround the calf portion (23).

4. A foot tightening structure as claimed in claim 3, characterized in that: The calf portion (23) is provided with a fixing through hole group, which includes a first fixing through hole (31) and a second fixing through hole (32) at two corresponding positions, and the two ends of the tightening belt (1) pass through the two fixing through holes in the calf portion (23) in sequence.

5. A foot tightening structure as claimed in claim 1, characterized in that: The connecting component is a Velcro.

6. A foot tightening structure as claimed in claim 1, characterized in that: The tightening belt (1) is elastic.

7. A traction boot, comprising an outer boot (3), characterized in that: The outer boot cover (3) is located on the outside of the foot tightening structure according to any one of claims 1 to 6, and the two together restrain the foot and calf of the user.

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