Electric shoelace tightening mechanism and shoe

Abstract

The utility model discloses an electric shoelace loosening and tightening mechanism and a shoe with the same, the electric shoelace loosening and tightening mechanism comprises a driving device, a pull rope plate and a pull rope, the driving device is connected with the pull rope plate, the pull rope comprises a first end and a second end, the first end is fixedly arranged with the pull rope plate, the second end is connected with a shoelace through a guide structure, and the guide structure is connected with the shoelace. The driving device drives the pull rope plate to reciprocate so as to drive the first end of the pull rope to move in the first direction, and the guide structure can guide the second end of the pull rope to move in the second direction. According to the shoelace pulling device, the driving device and the pull rope plate are connected, the first end of the pull rope is fixed on the pull rope plate, the second end of the pull rope penetrates through the fixedly arranged guide structure to be connected with shoelaces in different sections, and the reciprocating motion of the driving device in the first direction is transmitted to the second end of the pull rope, so that the shoelaces are pulled at a plurality of point positions at the same time; the adjustable shoe has the advantages of being high in adjusting efficiency, high in comfort level and suitable for different foot types and wearing habits.

Description

Technical Field

[0001] The utility model relates to the field of shoes, in particular to an electric shoelace tightening mechanism and shoes containing the tightening mechanism. Background Art

[0002] Shoelaces are the main way to put on and take off shoes and their wrapping performance. For a long time, shoelaces have been tightened and tied manually, which is not only slow, but also cannot be adjusted for tightness and comfort after tying. Later, components such as BOA appeared, which improved traditional shoelaces and adjusted the tightness by knobs. Based on the BOA structure, motors are further used to tighten the shoelaces electrically, and combined with pressure sensors and Bluetooth communications, automated and intelligent shoelace tightening is achieved, which is a milestone in the history of shoe development.

[0003] The core of this mechanism is the electric winch. After the motor is reduced by gears, it generates a large torque to drive the winch to rotate. The shoelaces are wound and released on the winch to tighten or loosen the shoelaces. This structure requires high-precision gears, winches, bearings and other components, which makes the shoes very expensive and difficult to popularize.

[0004] This mechanism also inherits the shortcomings of the BOA structure, such as the need to use very long smooth and thin shoelaces, which have a small contact area with the foot skin, resulting in a noticeable sense of pressure after tightening and poor comfort. In addition, the shoelaces are a whole piece, which can be tightened and loosened as a whole, and cannot be adjusted in different positions, and cannot adapt to different foot shapes and wearing habits.

[0005] Therefore, the shoelace system in the prior art has the disadvantages of poor comfort, inability to set different tightness in sections, inability to adapt to different foot shapes and wearing habits, and high cost. Utility Model Content

[0006] In order to solve the above technical problems existing in the prior art, the utility model discloses an electric shoelace tensioning mechanism and a shoe containing the tensioning mechanism. The specific technical solution is as follows:

[0007] An electric shoelace tightening and loosening mechanism comprises a driving device, a rope pull plate and at least one rope pull, wherein the driving device is connected to the rope pull plate, the rope pull comprises a first end and a second end, the first end is fixed to the rope pull plate, and the second end is connected to the shoelace via a guide structure, the driving device drives the rope pull plate to reciprocate to drive the first end of the rope pull to move in a first direction, and the guide structure can guide the second end of the rope pull to move in a second direction.

[0008] Furthermore, the first direction is the front-to-back direction, and the second direction is the direction of a line connecting the second end and the guide structure through which the second end passes.

[0009] Furthermore, the guide structure is a guide hole, which includes a first through hole, a second through hole, and a channel connecting the two through holes, and the pull rope passes through the channel.

[0010] Furthermore, the channel is perpendicular to a line connecting the midpoints of the first and last sections of the shoelace, so that the drawstring between the second end and the guide structure is perpendicular to a line connecting the midpoints of the first and last sections of the shoelace.

[0011] Furthermore, the number of drawstrings is set to be more than two, the number of guide structures is set to be more than two, and the second ends of the drawstrings are connected to more than two sections of the shoelaces to simultaneously adjust the tightness of the sections of the upper.

[0012] Furthermore, each guide structure is arranged corresponding to the spacing distance between each section of the shoelace, so that the drawstring between the second end and the guide structure remains parallel.

[0013] Furthermore, the driving device is an electric push rod, one end of which is fixedly connected to the shoe body, and the other end is connected to the pull rope plate, driving the pull rope plate to reciprocate in the direction from the toe to the heel.

[0014] Furthermore, the rope-pulling plate includes fixing points arranged corresponding to the number of the ropes, the fixing points are hole structures, and the first ends of the ropes are fixedly connected to the rope-pulling plate through the hole structures.

[0015] Furthermore, two or more guide structures are arranged between the first end and the second end of each pull rope, and the guide structures are arranged at intervals so that the pull rope distance between the guide structure and the second end of the pull rope can be adjusted.

[0016] Furthermore, the displacement distance of the second end of the pull rope is S, and the distance from the guide structure to the straight line where the pull rope plate moves is L. CD , S and L CD There is a negative correlation between them, and the displacement distance S of the second end of the pull rope is adjusted by adjusting the position of the guide structure.

[0017] Furthermore, it also includes a connecting piece, an eyelet piece, a tongue and a tongue ring, the connecting piece is arranged on the sole, the driving device and the guide structure are fixedly connected to the connecting piece, the eyelet pieces are relatively arranged on both sides of the tongue, the shoelaces are successively passed through the holes of the eyelet piece through the tongue ring to form shoelace loops on two adjacent holes, and the second ends of the drawstrings are respectively connected to the corresponding shoelace loops so that the drawstrings pull the shoelaces to move.

[0018] Furthermore, the drawstring and the shoelaces are an integrally formed structure.

[0019] A pair of shoes comprises the above-mentioned electric shoelace tightening mechanism.

[0020] Compared with the prior art, the electric shoelace tightening mechanism and the shoe disclosed in the utility model have the following advantages:

[0021] Beneficial effects:

[0022] 1. By connecting and setting a driving device and a rope-drawing plate, the first end of the rope is fixed on the rope-drawing plate, and the second end of the rope is connected to shoelaces of different sections through a fixed guide structure, and the reciprocating motion of the driving device in the first direction is transmitted to the second end of the rope, so that the shoelaces are pulled at multiple points at the same time, thereby driving the shoelaces to always move along the second direction, so as to efficiently adjust the tightness of the shoelaces.

[0023] 2. When the moving distance of the drawstring plate is the same, the greater the vertical distance between the guide structure and the drawstring plate, the shorter the actual moving distance of the second end of the drawstring. Therefore, more than two guide structures are provided between the first end and the second end of the drawstring so that the distance between the guide structure and the drawstring plate can be adjusted. Thus, the user can select a suitable guide structure and adjust the tightness of the shoelaces in this area to multiple levels to meet the needs of different foot shapes, personal wearing habits or various usage scenarios.

[0024] 3. Conventional shoelaces and uppers can be used in this solution, thus maintaining the contact area between the conventional upper and the foot skin, without changing the craftsmanship of the upper and the comfort of wearing, and avoiding obvious pressure after tightening.

[0025] 4. The driving structure can adopt electric push rod, which is a commonly used device in industry and life, with mature technology and high reliability, and can effectively reduce the cost of the whole mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the electric shoelace tightening and loosening mechanism of the utility model.

[0027] Figure 2 for Figure 1 A top view of a schematic diagram of an electric shoelace tightening and loosening mechanism of the utility model.

[0028] Figure 3 It is a plan view of the first embodiment of the electric shoelace tightening and loosening mechanism of the utility model.

[0029] Figure 4 It is a plan view of the second embodiment of the electric shoelace tightening and loosening mechanism of the utility model.

[0030] Figure 5 It is a schematic diagram comparing the positions of the pull rope plate before and after displacement in the electric shoelace tightening and loosening mechanism of the utility model.

[0031] Figure 6 for Figure 5 A schematic diagram of the movement process of the pull rope in the electric shoelace tightening and loosening mechanism of the utility model.

[0032] Figure 7It is a plan view of the third embodiment of the electric shoelace tightening and loosening mechanism of the utility model. DETAILED DESCRIPTION

[0033] In order to better understand the purpose, structure and function of the utility model, the electric shoelace tightening mechanism and the shoe provided by the utility model are described in detail below in conjunction with the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, the electric shoelace tightening mechanism includes a driving device 1 arranged on the shoe body and a drawstring plate 2 arranged on both sides of the shoe body, the driving device 1 is connected to the drawstring plate 2, one or more drawstrings 3 are fixedly arranged on the drawstring plate 2, the drawstring 3 includes a first end 34 and a second end 35, the first end 34 is connected to the drawstring plate 2, and the second end 35 passes through a guide structure 4 fixedly arranged on the sole and is connected to different shoelaces 5.

[0035] The side close to the toe is defined as the front, the other side close to the heel is defined as the back, the side of the sole body close to the inner side of the human foot is defined as the inner side of the sole body, and the side of the sole body close to the outer side of the human foot is defined as the outer side of the sole body. The shoelace 5 is covered on the top surface of the tongue from front to back, and according to the position of the shoelace loop 6, the two shoelace loops 6 opposite to each other on the inner and outer sides are defined as a shoelace section. Based on this, the shoelace is divided into several sections. The first section is close to the toe, the last section is close to the heel, and the middle section is between the first and last sections.

[0036] Of course, if the shoelace system does not have a shoelace loop structure, the shoelace area can also be defined according to the shoelace perforations or other shoelace layout characteristics, and the areas on both sides of the shoelace that can be used to connect the second end of the drawstring can be set as a section according to the front-to-back arrangement order.

[0037] The driving device 1 reciprocates along the first direction driven by a motor, a cylinder, etc. Preferably, the first direction is the front-to-back direction, thereby driving the drawstring plate 2 to reciprocate, and one end of the drawstring 3 moves horizontally following the drawstring plate 2, and the second end 35 passes through the guide structure 4 and is connected to the shoelace 5. Therefore, the force direction of the second end 35 always points to the guide structure 4 through which it passes, so that the second end 35 always moves along the lateral direction of the shoe upper, thereby pulling the shoelace 5 at multiple points at the same time to adjust the tightness of the shoelace 5.

[0038] Specifically, one end of the driving device 1 is fixedly connected to the shoe body, and the other end is connected to the pull rope plate 2. It can be set to an electric push rod. The electric push rod is a commonly used device in industry and life. It has mature technology and high reliability. It can effectively reduce the cost of the entire structure. It can also be replaced by an electric lead screw push rod, an electric linear motor, a piezoelectric ceramic push rod and other electric drive devices, or other power devices such as cylinders, as long as it can drive the pull rope plate 2 to reciprocate.

[0039] The drawstring plate 2 is in the shape of an elongated plate, or it may be in the shape of a square column, a cylinder, etc., and includes a first fixed point, a second fixed point, and a third fixed point arranged in sequence. A hole structure is arranged at each fixed point, and a first drawstring 31, a second drawstring 32, and a third drawstring 33 are arranged correspondingly. The drawstring plate 2 drives the first ends 34 of the first drawstring 31, the second drawstring 32, and the third drawstring 33 to move back and forth in the front-rear direction from the toe to the heel.

[0040] Of course, in addition to setting a hole structure and a knotting method, the pull rope 3 and the pull rope plate 2 can also be connected by setting a fixing column on the pull rope plate 2, or adopting various methods such as bonding and welding, so as to achieve the effect of fixed connection between the first end 34 of the pull rope 3 and the pull rope plate 2.

[0041] like Figure 1 and Figure 3 As shown, the guide structure 4 includes a first guide hole 41, a second guide hole 42, and a third guide hole 43, which are fixedly arranged on the shoe in sequence along the direction from the toe to the heel. The second ends 35 of the first drawstring 31, the second drawstring 32, and the third drawstring 33 are connected to the shoelace 5 of the corresponding section after passing through each guide hole. Since the position of the guide hole remains fixed, the length of the drawstring 3 remains fixed. When the drawstring plate 2 drives the first end 34 of the drawstring 3 to move back and forth from the toe to the heel, the guide hole and the two ends of the drawstring 3 are no longer kept in the same straight line, and the guide hole and the two ends of the drawstring 3 form a triangular structure. However, only the length of the drawstring 3 between the second end 35 and the guide hole changes, and the force direction remains in the same straight line. It always reciprocates in the second direction of the second end 35 and the connecting line of the guide structure 4 through which the second end 35 passes, thereby more efficiently realizing the tightness adjustment of the shoelace 5.

[0042] In addition, the guide structure 4 may also be a clamp or a guide groove, that is, it is sufficient to achieve the effect of keeping the force direction of the pull rope 3 between the second end 35 and the guide hole in the same straight line.

[0043] The second end 35 of the drawstring 3 can be connected to the shoelace loop 6, and the shoelace 5 can be passed through the shoelace loop 6 and other fixed shoelace holes of the shoe using a conventional shoelace 5 threading method.

[0044] The shoelace 5 can be made of various shapes and materials such as round and flat, and can be tied at the neckline or fixed in other ways. The reciprocating motion of the driving device 1 can adjust the tightness of the shoelace 5.

[0045] The electric shoelace tightening mechanism can use conventional shoelaces 5 and shoe uppers, thereby not changing the craftsmanship of the shoe uppers and the comfort of wearing.

[0046] Furthermore, the drawstring 3 and the shoelace 5 can be set as an integrally formed structure, that is, the shoelace 5 can be omitted, and the second end 35 of the drawstring 3 can be crossed over the entire shoe upper in the transverse direction of the shoe upper and connected to the other side of the shoe upper or the drawstring plate 2 opposite to the drawstring plate 2.

[0047] Furthermore, as the height of the foot surface of the human foot gradually increases from the toe to the heel, the shoelace 5 in different sections has different requirements for tightness and tension. For example, the first drawstring 31 near the toe has a shorter stroke, while the third drawstring 33 near the collar has a longer stroke. In order to enable users to adjust the stroke of each drawstring 3 according to the differences in the shape of the human foot and the use scenario, Figure 4 As shown, a second group of guide holes, i.e., a fourth guide hole 44, a fifth guide hole 45, and a sixth guide hole 46, can be added between the first guide hole 41, the second guide hole 42, the third guide hole 43 and the rope plate 2. By reducing the distance of the rope 3 between the guide holes and the rope plate 2, the distance between the guide holes and the end of the rope 3 connected to the shoelace 5 is increased, thereby improving the tightening efficiency of the rope 3. That is, when the rope plate 2 moves the same unit distance, the rope 3 where the second group of guide holes are located close to the rope plate 2 makes the shoelace 5 tighter.

[0048] When the first guide hole corresponding to the first pull rope is used, the first pull rope can only be passed through the first guide hole. When the second guide hole corresponding to the first pull rope is used, in addition to passing the first pull rope 31 through the second guide hole, it can also be further passed through the first guide hole. This setting method can enhance the stability of the pull rope when moving between the second end and the guide hole.

[0049] Specifically, Figure 5 As shown, when the drawstring plate 2 is at the first position A, the shoelace 5 is in a loose state. When the drawstring plate 2 moves to the second position B, the drawstring 3 is driven to move, thereby moving the second end 35 (shoelace loop 6) of the drawstring 31 from the third position a to the fourth position b, thereby tightening the shoelace 5.

[0050] The geometric diagram of the moving trajectory of the pull rope 3 is shown in the figure, A and B correspond to Figure 5 The first position A and the second position B of the middle rope plate 2, point D is the position of the guide hole, and DC is perpendicular to the extension line of AB at point C. Figure 6 When the first position A in the figure moves to the second position B, the actual movement distance S of the shoelace loop 6, that is, the actual movement distance S of the second end of the drawstring is Figure 6 The length L of the middle line segment DB BD The length L of the line segment DA AD The difference between, that is:

[0051] S=L BD -L AD

[0052] According to the Pythagorean theorem:

[0053] L BD 2 =(L AB +L AC ) 2 +L CD 2

[0054] Expand to:

[0055] (S+L AD ) 2 =L AB 2 +2L AB L AC +L AC 2 +L CD 2

[0056] S 2 +2SL AD +L AD 2 =L AB 2 +2L AB L AC +L AC 2 +L CD 2

[0057] According to the Pythagorean theorem:

[0058] L AD 2 =L AC 2 +L CD 2

[0059] thereby:

[0060] S 2 +2SL AD =L AB 2 +2L AB L AC

[0061] In this scheme, L AB and L AC constant, so S 2 +2SL AD is a fixed value, L AD non-negative, so S and L AD Negative correlation, that is, L AD The smaller it is, the larger S is.

[0062] If L AC If S and L are fixed, CD Negative correlation, so the length of CD, that is, the installation position of the guide hole, can be used to control the length of S. When the moving distance of the rope plate 2 is the same, the larger the CD length, the shorter the actual moving distance of the shoelace ring 6, that is, the distance between the turning position and the moving direction of the rope plate 2 is different, and when the travel of the rope plate 2 is the same, the travel of the shoelace 5 is different, thereby producing different tension effects.

[0063] In order to better understand the purpose, structure and function of the utility model, the electric shoelace loosening mechanism and the shoe of the utility model are further described in detail below with reference to the accompanying drawings, taking the specific structure of the electric shoelace loosening mechanism as an example.

[0064] Embodiment 1, as Figure 1 As shown, the electric shoelace tightening mechanism includes an electric push rod, a flat rope-drawing plate 2, a rope 3 and a guide hole. The rope-drawing plate 2 and the push rod are sequentially connected and arranged on the side of the shoe body in the direction from the toe to the heel. The end of the push rod close to the heel is fixed to the carbon plate, and the end close to the toe is fixedly connected to the rope-drawing plate 2. Driven by the motor, the push rod reciprocates from the toe to the heel, thereby driving the rope-drawing plate 2 to reciprocate.

[0065] A first fixed point, a second fixed point and a third fixed point are sequentially provided on the drawstring plate 2 in the direction from the toe of the shoe to the heel. In this embodiment, the fixed points adopt a hole structure, and a first drawstring 31, a second drawstring 32 and a third drawstring 33 are respectively provided corresponding to the three fixed points. The drawstring 3 includes a first end 34 and a second end 35. The first end 34 is fixedly connected to the three fixed points of the drawstring plate 2 in a knotted manner. The second end 35 of the drawstring 3 is sequentially connected to the shoelace 5 of different sections via the guide structure 4. In this embodiment, the shoelace is sequentially connected from the last section to the first section. It can also be sequentially connected or spaced apart in the opposite direction. Through the horizontal reciprocating motion of the drawstring plate 2, the drawstring 3 is driven to move in the horizontal direction at one end fixed to the drawstring plate 2. After turning through the guide structure 4, the drawstring 3 drives the shoelace 5 to reciprocate in the transverse direction of the shoe upper, thereby achieving the effect of loosening or tightening the shoelace 5.

[0066] The guide structure 4 includes a first guide hole 41, a second guide hole 42, and a third guide hole 43, which are arranged in sequence on the carbon plate in the middle of the shoe in the direction from the toe to the heel. The three guide holes are arranged correspondingly according to the spacing distances between the sections of the shoelace 5, so that the second end 35 of each draw cord 3 is kept parallel to the part between the guide structure 4, so that the tightening direction of the shoelace 5 is consistent, thereby improving the stability and comfort of wearing the shoe.

[0067] Specifically, the guide hole includes a first through hole and a second through hole arranged up and down, and a channel connecting the two through holes. The draw rope 3 passes through the channel so that the draw rope 3 can move stably in the turning position. The channel is perpendicular to the line connecting the midpoints of the first and last sections of the shoelace 5, so that the part between the second end 35 of the draw rope 3 and the guide structure 4 remains perpendicular to the section of the shoelace 5, thereby shortening the distance from the guide structure 4 to the shoelace 5 and improving the efficiency of tightening the shoelace 5.

[0068] like Figure 2 As shown, the electric shoelace tightening mechanism is arranged on both sides of the shoe relatively, and the two ends of the shoelace 5 are inserted into the corresponding holes of the shoe eyelet 8 from the middle of the shoe tongue 7 near the toe to both sides, and then passed from the outside of the next adjacent hole of the shoe eyelet 8 to the tongue ring 71 in the middle of the shoe tongue 7, and the shoelace 5 is passed through the tongue ring 71 along the direction from the toe to the heel, and then inserted into the next adjacent holes of the shoe eyelet 8 on both sides respectively, and the above-mentioned setting method is repeated, the shoelace 5 is set above the vamp, and the shoelace loop 6 is formed on the outside of the shoe eyelet 8, and the second end 35 of each drawstring is respectively connected to the corresponding shoelace loop 6, so that the tension can be adjusted by pulling the shoelace 5 by the drawstring.

[0069] There can be many numbers and positions of the drawstrings 3, and embodiment 1 is only one of the settings, that is, the drawstrings 3 correspond to the sections of the shoelaces, and can drive the shoelaces 5 to move back and forth in the lateral direction of the shoe upper. The carbon plate described in this embodiment can also be other connectors fixedly set on the sole or upper, as long as the rear end of the driving device 1 and the guide structure 4 can be fixedly connected to the shoe body.

[0070] Embodiment 2, as Figure 4 As shown, compared with the first embodiment, the difference lies in that one more group of guide holes is added, specifically, a fourth guide hole 44 is added between the first guide hole 41 and the rope pull plate 2, a fifth guide hole 45 is added between the second guide hole 42 and the rope pull plate 2, and a sixth guide hole 46 is added between the third guide hole 43 and the rope pull plate 2. Since the rope pull plate 2 moves the same distance, the greater the vertical distance between the guide hole and the rope pull plate 2, the shorter the actual moving distance of the second end 35 of the rope 3. Therefore, the second group of guide holes shortens the distance between the guide hole and the rope pull plate 2, thereby increasing the displacement distance of the second end 35 in the direction of the shoe surface, that is, increasing the displacement distance of the shoelace 5, thereby increasing the tightening force of the shoelace 5 in this section.

[0071] Embodiment three, as Figure 7As shown, compared with the first and second embodiments, the difference lies in that five guide holes are provided for the first drawstring 31, specifically, a fourth guide hole 44, a seventh guide hole 47, an eighth guide hole 48, and a ninth guide hole 49 are sequentially added between the first guide hole 41 and the drawstring plate 2, and the guide holes are arranged in a straight line with equal intervals. The user can select a suitable guide hole, so as to adjust the tension of the shoelace 5 in this area to multiple levels to meet the needs of different foot shapes, personal wearing habits or various usage scenarios.

[0072] This embodiment is only one arrangement of the guide holes. The guide holes can be arranged in a straight line or in other arrangements. They can be fixed on the carbon plate of the shoe, or other connecting parts. That is, as long as the draw cord 3 can select different turning positions in the lateral direction of the shoe upper, the multi-level adjustment effect of the tightness of the shoelace 5 can be achieved.

[0073] The utility model also discloses a pair of shoes, comprising any one of the above-mentioned electric shoelace tightening and loosening mechanisms.

[0074] The terms “above”, “below” and “within” mentioned above include the number itself; the terms “exceed” and “outside” do not include the number itself.

[0075] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be understood as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of the embodiments of the utility model will not be described separately.

[0076] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

Claims

1. An electric shoelace tightening mechanism, characterized in that: It includes a driving device, a drawstring plate and at least one drawstring, the driving device is connected to the drawstring plate, the drawstring includes a first end and a second end, the first end is fixed to the drawstring plate, and the second end is connected to the shoelace via a guide structure, the driving device drives the drawstring plate to reciprocate to drive the first end of the drawstring to move in a first direction, and the guide structure can guide the second end of the drawstring to move in a second direction.

2. The electric shoelace tightening mechanism according to claim 1, characterized in that: The first direction is the front-to-back direction, and the second direction is the direction of a line connecting the second end and the guide structure through which the second end passes.

3. The electric shoelace tightening mechanism according to claim 2, characterized in that: The guide structure is a guide hole, which includes a first through hole, a second through hole, and a channel connecting the two through holes, and the pull rope passes through the channel.

4. The electric shoelace tightening mechanism as claimed in claim 3, characterized in that: The channel is perpendicular to the line connecting the midpoints of the first and last sections of the shoelace, so that the drawstring between the second end and the guide structure is perpendicular to the line connecting the midpoints of the first and last sections of the shoelace.

5. The electric shoelace tightening mechanism according to claim 1, characterized in that: The number of drawstrings is set to be more than two, the number of guide structures is set to be more than two, and the second end of the drawstring is connected to more than two sections of the shoelace to simultaneously adjust the tightness of the sections on the shoe surface.

6. The electric shoelace tightening mechanism according to claim 5, characterized in that: Each guide structure is arranged correspondingly according to the spacing distance between each section of the shoelace, so that the drawstring between the second end and the guide structure remains parallel.

7. The electric shoelace tightening mechanism according to claim 1, characterized in that: The driving device is an electric push rod, one end of which is fixedly connected to the shoe body, and the other end is connected to the pull rope plate, driving the pull rope plate to reciprocate in the direction from the toe to the heel.

8. The electric shoelace tightening mechanism according to claim 1, characterized in that: The pull rope plate includes fixing points arranged corresponding to the number of pull ropes, the fixing points are hole structures, and the first ends of the pull ropes are fixedly connected to the pull rope plate through the hole structures.

9. The electric shoelace tightening mechanism according to any one of claims 1 to 8, characterized in that: Two or more guide structures are arranged between the first end and the second end of each pull rope, and the guide structures are arranged at intervals so that the pull rope distance between the guide structure and the second end of the pull rope can be adjusted.

10. The electric shoelace tightening mechanism according to any one of claims 1 to 8, characterized in that: The displacement distance of the second end of the pull rope is S, and the distance from the guide structure to the straight line where the pull rope plate moves is L. CD , S and L CD There is a negative correlation between them, and the displacement distance S of the second end of the pull rope is adjusted by adjusting the position of the guide structure.

11. The electric shoelace tightening mechanism according to any one of claims 1 to 8, characterized in that: It also includes a connecting piece, an eyelet piece, a tongue and a tongue ring, wherein the connecting piece is arranged on the sole, the driving device and the guide structure are fixedly connected to the connecting piece, the eyelets are relatively arranged on both sides of the tongue, the shoelaces are sequentially passed through the holes of the eyelet piece through the tongue ring to form shoelace loops on two adjacent holes, and the second ends of the drawstrings are respectively connected to the corresponding shoelace loops so that the drawstrings pull the shoelaces to move.

12. The electric shoelace tightening mechanism according to claim 1, characterized in that: The drawcord and laces are integrally molded.

13. A shoe, characterized in that: It comprises the electric shoelace tightening mechanism as claimed in any one of claims 1 to 12.

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