CN214963015U

CN214963015U - Novel race shoes of synchronous length and width of adjusting

Info

Publication number: CN214963015U
Application number: CN202120815954.3U
Authority: CN
Inventors: 余文良; 余亭宏; 余权洪
Original assignee: Hongwei Sporting Goods Manufacturing Zhangjiakou Co ltd
Current assignee: Hongwei Sporting Goods Manufacturing Zhangjiakou Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-03
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a novel racing shoes capable of synchronously adjusting length and width, which comprises a shoe bottom part, a shoe head part capable of moving back and forth on the shoe bottom part is arranged on the shoe bottom part in a sliding way, a crumple groove extending forwards is longitudinally penetrated at the tail end of the shoe head part, and the shoe head part and the shoe bottom part are respectively arranged at the left side and the right side of the crumple groove, the shoe head part is opposite to the shoe bottom part, the shoe bottom part compresses or expands the width of the crumple groove when moving back and forth, the utility model aims to provide a scheme that the shoe head part is arranged on the shoe bottom part in a sliding way, the width of the tail end part of the shoe head part can be synchronously adjusted while adjusting the longitudinal length, the effect of simply, quickly, safely and reliably synchronously adjusting the length and the width of the racing shoes can be achieved, so as to be suitable for users with different ages and different foot types, the reliability of the mechanical structure is guaranteed, meanwhile, the internal mechanical structure is simplified, and the assembled racing shoes are more convenient to produce.

Description

Novel race shoes of synchronous length and width of adjusting

Technical Field

The utility model relates to a race type equipment field especially relates to a novel shoes of racing of synchronous regulation length and width.

Background

In recent times, as people's lives get better and better, various racing sports appear in the lives of the public, wherein the racing sports on ice, for example: skating, skiing, and dry-land racing-type sports, such as: roller skating, the type of sports that needs to be accomplished with the aid of special racing-type shoes, has also evolved from adult sports to civilian sports that will participate at all ages.

In the existing market racing shoes, users of different ages and foot sizes can only buy shoes of different sizes correspondingly mostly according to the feet of different ages and different sizes, and for people such as young children, the foot sizes can also change rapidly due to the fast growth speed, so that the users need to continuously replace and buy shoes of proper sizes, which is easy to cause economic burden and not environment-friendly.

Of course, many adjustable shoes for racing exist in the prior art, but such shoes are either only capable of adjusting the longitudinal length singly, but not capable of adjusting the width, and the width of the feet can be changed along with the increase of the length, for example, the foot shape of a child can be gradually widened along with the increase of the length, for a fierce racing, if the length can be adjusted only and the left and right widths of the feet can not be tightly wrapped, the sprain or fall injury caused by the left and right displacement of the feet in the shoe body in high-speed sports can easily occur, while some shoes capable of adjusting the longitudinal length and the left and right widths simultaneously can only be adjusted the length and the width independently, when the purpose of adjusting the length and the width is needed to be achieved, the adjustment of two different actions is needed, and in the fierce racing, as the shoes with adjustable shoes are often matched with a plurality of complicated parts to achieve the purpose of adjustment, the shoes are easy to loosen and deform after being worn for a long time, and at the moment, the shoes need to stop again to be adjusted again. The adjustment performed twice obviously wastes time for racing sports, and is inconvenient to operate, troubles are caused to production due to complex part matching, and the reliability of mechanical properties of the parts is greatly reduced.

Accordingly, there is a need to provide a new type of racing shoe with simultaneous length and width adjustment to address the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a when adjusting length, synchronous adjustment width and simple structure, shoes are racing that the reliability is high.

In order to achieve the above purpose, the utility model adopts the following scheme: a novel racing shoe capable of synchronously adjusting length and width comprises: the shoe comprises a shoe bottom, a shoe head part capable of moving back and forth on the shoe bottom is arranged on the shoe bottom in a sliding mode, a guide base extends upwards from the bottom surface of the shoe bottom, a strip-shaped guide groove capable of being sleeved on the guide base penetrates through the bottom surface of the shoe head part, so that the shoe head part can move back and forth on the shoe bottom, and the direction of the shoe head part can be effectively adjusted on the shoe bottom;

the tail end of the toe cap part is longitudinally penetrated with a forwardly extending crumple groove and guide mechanisms which are respectively arranged on the toe cap part and the sole part and are positioned on the left side and the right side of the crumple groove, and the guide mechanisms can compress or expand the width of the crumple groove while the toe cap part moves back and forth relative to the sole part;

the driving mechanism is arranged on the bottom surface of the shoe bottom and can be used for driving the shoe head part to move back and forth;

the locking mechanism is arranged on the bottom surface of the toe cap part and can limit the driving mechanism to work so that the toe cap part cannot move back and forth along the shoe bottom, and the toe cap part after being adjusted in the sliding process is prevented from being displaced after being stressed on the shoe bottom, so that potential safety hazards are prevented.

As a further proposal of the utility model, the crumple slot is Y-shaped and is arranged at the tail end of the toe cap part, and the two sides of the racing shoes can be contracted towards the middle at the same time.

As a further aspect of the present invention, the driving mechanism includes: the folding locking wrench comprises a rack fixedly arranged on the bottom surface of the toe cap part, a rotating rod which penetrates through a first through hole in the bottom surface of the sole part and can rotate in the first through hole, the end part of the rotating rod, which is positioned below the bottom surface of the sole part, is hinged with a gear capable of pulling the rotating rod to move downwards in the first through hole when being overturned and opened, and simultaneously can drive the folding locking wrench rotating by the rotating rod to be fixedly formed at the top of the rotating rod and driven by the rotating rod to rotate, and can move downwards along with the rotating rod when being overturned and opened, the gear is meshed with the rack after moving downwards along with the rotating rod, the folding locking wrench is opened by simple overturning, and the action of making a gear meshing rack can be rapidly performed by rotating the folding locking wrench, so that the toe cap part can be expanded and contracted along the front and back of the sole part is realized, meanwhile, the left and right width adjustment of the racing shoes is realized by compressing or expanding the crumpling groove through the guide mechanism synchronously, so that the feet of a user can be tightly wrapped, the length and the width can be adjusted without repeating twice adjustment actions, the method is convenient and fast, the preparation time in the sports is shortened, and the safety hazards of sprain or tumble and the like caused by the fact that the feet slip left and right in the shoes due to the fact that the racing shoes are too loose left and right are caused in the sports.

As a further proposal of the utility model, the guiding mechanism comprises a first guiding head arranged on the lower surface of the bottom of the toe cap part and positioned at one side of the crumple groove, and a second guiding head far away from the first guiding head and arranged on the lower surface of the bottom of the toe cap part at the other side of the crumple groove, a second guiding groove obliquely arranged leftwards and rightwards respectively penetrates through the positions of the sole part corresponding to the second guiding head and the first guiding head, the second guiding head and the first guiding head are respectively clamped in the corresponding second guiding groove and can move back and forth along the second guiding groove, the two second guiding grooves are splayed on the sole part with wide front and narrow back, and the two obliquely arranged second guiding grooves are matched and fixed on the first guiding head and the second guiding head of the sole part to enable the crumple groove to gradually fold or fold in the moving process of the toe cap part, therefore, the width of the rear area of the toe part of the shoe is adjusted, the width of the racing shoe is adjusted, the structure is simple, the processing is easy, and the mechanical failure is not easy to occur

As the utility model discloses preferred scheme the direction base top is connected with one and can prevent that this direction base from following the reinforcing plate that breaks away from in the bar guide way, this reinforcing plate width is greater than bar guide way width, and be formed at the upper surface of toe portion bottom.

As a further aspect of the present invention, the locking mechanism includes a locking member fixedly disposed between the rack and the bottom surface of the toe cap portion below and surrounding the gear and the gear outer can mesh with the tooth surface of the two sides of the gear to form an annular tooth, the rack is fixed to the lower side of the annular tooth and the tooth surface of the rack coincides with the adjacent tooth surface of the annular tooth to form an annular tooth, the gear extends into the annular tooth, the teeth of the left and right sides of the gear and the teeth of the left and right sides of the annular tooth are meshed with each other, so that the toe cap portion where the annular tooth is located can move back and forth.

As a further aspect of the present invention, the foldable locking wrench further includes that the outer embedding sleeve of the rotating rod can make the rotating rod move upwards after the foldable locking wrench is turned over and closed, and further make the gear and the spring engaged with the annular teeth, one end of the spring is pressed against the bottom surface of the gear and the other end of the spring is pressed against the upper surface of the shoe bottom.

As the utility model discloses preferred scheme, still be equipped with the holding chamber that is recessed form on the sole bottom surface, first through-hole set up in the holding intracavity, holding chamber top is the open form that link up, folding locking spanner set up in on the bottom surface of holding chamber below.

As the utility model discloses preferred scheme, folding locking spanner is for being flat upset piece, folding locking spanner with the pin joint of dwang is located two-thirds department of upset piece can let folding locking spanner laminate after the upset is closed in the unable random upset in bottom surface of holding chamber below causes the mistake to open.

As the utility model discloses preferred scheme, folding locking spanner for being "Z" style of calligraphy laminate in the upset piece of sole portion, folding locking spanner with the pin joint of dwang is located two-thirds department of upset piece.

As the utility model discloses preferred scheme, the first guide way that is provided with is run through from top to bottom to the vamp of toe cap bottom upwards extend on the vamp of sole bottom have one can stretch into in the first guide way, and can follow the guide block of this first guide way back-and-forth movement, rely on this guide block with sliding fit between the first guide way has effectively strengthened the rigidity between vamp and the sole portion, makes the relative sole portion of vamp can keep fore-and-aft rigidity in high-speed motion on the one hand, and on the other hand can effectual direction of direction vamp adjustment.

To sum up, the utility model discloses for its beneficial effect of prior art is: the utility model discloses a set up the tip by sliding on the sole portion, set up the scheme that can be when adjusting longitudinal length synchronous adjustment tip tail end part width respectively between the two, can reach simply, quick and safe and reliable's synchronous adjustment racing shoes length wide effect, wear with being suitable for different ages and different foot type size users, reach the length that the shoes that race is fit for the wearer and control the parcel degree, need not to divide twice and adjust length and wide operation respectively, greatly made things convenient for user's wearing speed to experience, reduce unnecessary potential safety hazard, locking mechanical system guarantees the mechanical structure's of adjusting length and width reliability simultaneously, simplify the complicated internal mechanical structure of tradition simultaneously, reduce the possibility that sole portion and tip take place to become flexible, and make things convenient for the production equipment more.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic view showing the extension of the toe cap part relative to the sole part and the expansion of the left and right sides of the toe cap part.

Fig. 3 is a schematic view of the toe cap of the present invention after the toe cap is shortened relative to the sole and the left and right sides of the toe cap are contracted.

Fig. 4 is an exploded top view of the present invention.

Fig. 5 is a schematic exploded rear view of the present invention.

Fig. 6 is a schematic cross-sectional view of the present invention.

Fig. 7 is an enlarged schematic view of a portion a of fig. 6.

Fig. 8 is a second exploded rear view of the present invention.

Fig. 9 is an enlarged schematic view at B in fig. 8.

Fig. 10 is a schematic view of another embodiment of the folding locking wrench of the present invention.

Detailed Description

The following detailed description provides many different embodiments or examples for implementing the invention. Of course, these are merely embodiments or examples and are not intended to be limiting. In addition, repeated reference numbers, such as repeated numbers and/or letters, may be used in various embodiments. These iterations are for simplicity and clarity of the description of the present invention and do not represent a particular relationship between the various embodiments and/or structures discussed.

Furthermore, spatially relative terms, such as "below" … "," below "," inside-out "," above "," upper "and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature during use or operation of the device, and may include different orientations of the device during use or operation of the device as illustrated in the figures. The device may be rotated 90 degrees or other orientations to different orientations and the spatially relative adjectives used therein may be similarly interpreted and, thus, should not be construed as limiting the invention, the terms "first", "second" are used merely for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. (it should be noted that in the present invention, the bottom surface of the toe cap portion is a plane portion between the two upper sidewalls, the bottom surface of the sole portion is a portion of the sole portion shown in the drawings that supports the toe cap portion and is parallel to the bottom surface of the toe cap portion, and the bottom surface or lower surface under the other described features is the outer wall surface of the component directly seen in the drawings).

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings: the novel racing shoes with the length and the width synchronously adjusted as shown in figures 1 to 10 comprise: the shoe comprises a shoe bottom part 1, a toe cap part 2 capable of moving back and forth on the shoe bottom part 1 is arranged on the shoe bottom part 1 in a sliding mode, a guide base 11 extends upwards from the bottom surface of the shoe bottom part 1, a strip-shaped guide groove 23 capable of being sleeved on the guide base 11 so that the toe cap part 2 can move back and forth on the shoe bottom part 1 penetrates through the bottom surface of the toe cap part 2, the top of the guide base 11 is further connected with a reinforcing plate capable of preventing the guide base 11 from being separated from the strip-shaped guide groove 23, and the left width and the right width of the reinforcing plate are larger than the left width and the right width of the strip-shaped guide groove 23 and are formed on the upper surface of the bottom part of the shoe top part 2; a Y-shaped crumple slot 6 which extends forwards longitudinally penetrates through the tail end of the toe cap part 2, and guide mechanisms 5 which are respectively arranged on the left side and the right side of the crumple slot 6 on the toe cap part 2 and the sole part 1 and can compress or expand the width of the crumple slot 6 when the toe cap part 2 moves back and forth relative to the sole part 1; the driving mechanism 4 is arranged on the bottom surface of the shoe bottom 1 and can be used for driving the shoe head part 2 to move back and forth; the locking mechanism 3 is arranged on the bottom surface of the toe cap part 2 and can limit the driving mechanism 4 to work so that the toe cap part 2 can not move back and forth along the shoe bottom part 1, the left side and the right side of the toe cap part 2 are respectively and fixedly provided with an upper side wall 201, when the driving mechanism 4 drives the toe cap part 2 to move back and forth relative to the shoe bottom part 1, the guide mechanism 5 can compress or expand the crumple groove 6 extending from the tail part of the toe cap part 2, when the crumple groove 6 contracts and expands, the upper side walls 201 on the left side and the right side of the toe cap part 2 can be drawn together towards the middle or separated towards the left side and the right side, thus realizing the width adjustment of the racing shoes, the synchronous adjustment of the width of the racing shoes, ensuring that the feet of a user wearing the racing shoes can be completely wrapped, and after the adjustment, the driving mechanism 4 is limited by the locking mechanism 3 to work so as to lock the width and the length of the adjusted racing shoes, the possibility of loosening of the shoe bottom and the shoe head is reduced. The utility model discloses a shoe, including 2 shoes, the bottom of shoes is equipped with the first guide way 21 that still runs through from top to bottom on 2 soles's of shoes face upward extend have one can stretch into in the first guide way 21, and can follow the guide block 20 of this first guide way 21 back-and-forth movement, rely on this guide block with sliding fit between the first guide way, effectively strengthened the rigidity between shoes head and the shoes bottom, on the one hand make the relative shoes bottom of shoes head can keep fore-and-aft rigidity in high-speed motion, on the other hand can cooperate the effectual direction of direction shoes head adjustment of direction base 11 and bar guide way 23, make the shoes head can not take place fore-and-aft rotation skew relative to the shoes bottom.

Wherein, the driving mechanism 4 includes: the fixed setting is in rack 22 on 2 bottom faces of toe cap portion, and run through first through-hole 40 on the 1 bottom face of sole portion and pass this first through-hole 40 and can be in the dwang 411 of this first through-hole 40 internal rotation the dwang 411 is located the tip of 1 bottom face below of sole portion articulates to have the upset and can stimulate when opening the dwang 411 is in move down in the first through-hole 40, and can drive simultaneously dwang 411 pivoted folding locking spanner 41, fixed formation is in dwang 411 top is rotated by its drive, and can follow when folding locking spanner 41 upset is opened dwang 411 downwardly moving's gear 42, this gear 42 is following dwang 411 lapse back with rack 22 intermeshing. When the folding locking wrench 41 drives the gear 42 to drive the rack 22 to displace, the toe cap 2 with the rack 22 is moved back and forth along the guide base 11 on the shoe bottom 1 through the strip-shaped guide groove 23 arranged on the toe cap so that the toe cap 2 can slide back and forth on the shoe bottom 1 in a longitudinal direction relatively to the front or the back, thereby realizing the adjustment of the length of the racing shoes.

In addition, the guide mechanism 5 comprises a first guide head 51 arranged on the lower surface of the bottom of the toe cap part 2 at one side of the crumple groove 6 and a second guide head 52 arranged on the lower surface of the bottom of the toe cap part 2 at the other side of the crumple groove 6 far away from the first guide head 51, second guide grooves 53 obliquely arranged leftwards and rightwards respectively penetrate through the positions of the sole part 1 corresponding to the second guide head 52 and the first guide head 51, the second guide head 52 and the first guide head 51 are respectively clamped in the corresponding second guide grooves 53 and can move forwards and backwards along the second guide grooves 53, because feet with different lengths have different widths, the width of the feet can be narrowed or widened along with the increase of the lengths, for example, the foot shape of a child can be gradually widened along with the increase of the lengths, so that the bottom of the toe cap part 2 is divided into a movable part A100 at the left side by the crumple groove 6, and a first guide head 51 is connected below the movable part B200 on the right side, a second guide head 52 is connected below the movable part B200, the first guide head 51 and the second guide head 52 respectively extend downwards and extend into corresponding second guide grooves 53 obliquely penetrating and arranged on the bottom surface of the sole part 1, wherein the first guide head 51 and the second guide head 52 are connected on the wall surface below the toe part 2 in an inverted T shape, the first guide head 51 and the second guide head 52 in the inverted T shape can be clamped in the second guide grooves 53 and are not easy to be separated, and the oblique degree of the second guide grooves 53 is preset according to the length retraction or the lengthening length and the change of the length and the width of the sole measured by an actual test.

As shown in fig. 5 to 9, the locking mechanism 3 includes a ring-shaped tooth 31 fixedly disposed between the rack 22 and the bottom surface of the lower portion of the toe cap 2 and surrounding the gear 42 and capable of engaging with the tooth surfaces of both sides of the gear, the rack 22 is fixed below the ring-shaped tooth 31, and the tooth surfaces of the rack 22 and the adjacent tooth surfaces of the ring-shaped tooth 31 are overlapped, so that the gear 42 can move upwards from the rack 22 to the ring-shaped tooth 31 for engaging with the ring-shaped tooth 31 or move downwards from the ring-shaped tooth 31 to the rack 22 for engaging with the ring-shaped tooth 31, the two actions correspond to the locking gear 42 respectively to prevent the rotation of the gear 42, and further prevent the toe cap 2 where the ring-shaped tooth 31 is located from moving backwards and forwards relative to the sole 1, thereby preventing the person wearing the shoes from being loosened after being stressed during high-speed sliding, thereby creating a dangerous problem.

As shown in fig. 4 to 7, the foldable locking wrench 41 further includes a spring 412 embedded outside the rotating rod 411 and capable of moving the rotating rod 411 upwards after the foldable locking wrench 41 is turned over and closed, so as to engage the gear 42 with the annular tooth 31, one end of the spring 412 is pressed against the bottom surface of the gear 42, and the other end is pressed against the upper surface of the shoe bottom 1, or a concave receiving cavity 7 is further disposed on the bottom surface of the shoe bottom 1, wherein the first through hole 40 is disposed in the receiving cavity 7, the top of the receiving cavity 7 is open, the foldable locking wrench 41 is disposed on the bottom surface below the receiving cavity 7, it should be noted that the state shown in fig. 1 corresponds to the turned-over closing of the foldable locking wrench 41 in this embodiment, and at this time, the gear 42 is located in the annular tooth 31, the folding locking wrench 41 is not rotatable, the toe cap 2 cannot move forward and backward relative to the sole 1, and the spring 412 is released to be in an extended state. The folding locking wrench 41 in this embodiment is turned over and opened corresponding to the state shown in fig. 6, at this time, the gear 42 is located at the rack 22 and engaged with the rack, the spring 412 is in a compressed state after being moved downward by the gear 42, the gear 42 can be driven to rotate by rotating the folding locking wrench 41, the toe part 2 can move forward and backward relative to the sole part 1, and the collapsing groove 6 can also be contracted or expanded due to the sliding fit between the first guide head 51 and the second guide head 52 and the corresponding second guide groove 53, so that the width of the shoe body of the racing shoe is synchronously changed while the length of the racing shoe is adjusted, and the folding locking wrench is simple in structure, but more convenient and practical.

Preferably, the folding spanner 41 is in the shape of a flat plate, or as shown in fig. 10, is a turning piece 413 attached to the shoe bottom 1 in a "Z" shape, the hinge point of the folding locking wrench 41 and the rotating rod 411 is located at two thirds of the turning piece 413, when the folding locking wrench 41 is turned to the closed state, since the hinge point is located at two thirds of the turning piece 413, in the case of an upward pulling force of the spring, the flap 413 cannot be turned to open without human intervention, also because the hinge point is located at two thirds of the flap 413, when the user turns the turning piece 413 to be in an open state, the tail end of the turning piece forms a fulcrum of the lever, the rotating rod 411 is pulled to generate axial displacement below the shoe bottom 1, so that the user can adjust the length and width of the racing shoe conveniently.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only illustrative of the principles of the present invention, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and changes fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A novel racing shoe capable of synchronously adjusting length and width is characterized by comprising:

the shoe comprises a shoe bottom (1), a toe cap part (2) capable of moving back and forth on the shoe bottom (1) is arranged on the shoe bottom (1) in a sliding mode, a guide base (11) extends upwards from the bottom surface of the shoe bottom (1), and a strip-shaped guide groove (23) capable of being sleeved on the guide base (11) penetrates through the bottom surface of the toe cap part (2) so that the toe cap part (2) can move back and forth on the shoe bottom (1);

the tail end of the toe cap part (2) is longitudinally penetrated with a forwardly extending crumpling groove (6) and a guide mechanism (5) which is respectively arranged on the toe cap part (2) and the sole part (1) and is positioned at the left side and the right side of the crumpling groove (6) and can compress or expand the width of the crumpling groove (6) while the toe cap part (2) moves back and forth relative to the sole part (1);

the driving mechanism (4) is arranged on the bottom surface of the shoe bottom (1) and can be used for driving the shoe head part (2) to move back and forth;

the locking mechanism (3) is arranged on the bottom surface of the toe cap part (2) and can limit the driving mechanism (4) to work so that the toe cap part (2) can not move back and forth along the sole part (1).

2. A new type of racing shoes with synchronous length and width adjustment as claimed in claim 1, wherein said crush slot (6) is provided at the rear end of said toe part (2) in a "Y" shape.

3. A new type of racing shoes with synchronous length and width adjustment, as claimed in claim 2, characterized in that said driving mechanism (4) comprises: a rack (22) fixedly arranged on the bottom surface of the toe cap part (2), a first through hole (40) penetrating through the bottom surface of the sole part (1), and a rotating rod (411) penetrating through the first through hole (40) and capable of rotating in the first through hole (40), the end part of the rotating rod (411) below the bottom surface of the shoe bottom part (1) is hinged with a part capable of pulling the rotating rod (411) to move downwards in the first through hole (40), and simultaneously can drive the folding locking wrench (41) of the rotating rod (411) to rotate, is fixedly formed at the top of the rotating rod (411) and is driven by the rotating rod to rotate, and a gear (42) which can move downward along with the rotating rod (411) when the folding locking wrench (41) is turned and opened, the gear (42) is meshed with the rack (22) after moving downwards along with the rotating rod (411).

4. The novel racing shoes capable of synchronously adjusting the length and the width are characterized in that the guide mechanism (5) comprises a first guide head (51) arranged on the lower surface of the bottom of the toe part (2) and positioned on one side of the crumpling groove (6), and a second guide head (52) far away from the first guide head (51) and arranged on the lower surface of the bottom of the toe part (2) on the other side of the crumpling groove (6), wherein second guide grooves (53) obliquely arranged leftwards and rightwards penetrate through the positions, corresponding to the second guide head (52) and the first guide head (51), of the sole part (1), and the second guide head (52) and the first guide head (51) are respectively clamped in the corresponding second guide grooves (53) and can move forwards and backwards along the second guide grooves (53).

5. A new type of shoes for racing with synchronous adjustment of length and width as claimed in claim 1, wherein a reinforcing plate is attached to the top of the guide base (11) to prevent the guide base (11) from being detached from the strip-shaped guide groove (23).

6. A novel shoes for racing with synchronous length and width adjustment as claimed in claim 3, wherein said locking mechanism (3) comprises a ring gear (31) fixedly disposed between said rack (22) and the bottom surface under said toe portion (2) and surrounding said gear (42) and capable of engaging with the tooth surfaces of both sides of said gear, said rack (22) is fixed under said ring gear (31) and the tooth surface of said rack (22) is overlapped with the adjacent tooth surface of said ring gear (31).

7. A novel racing shoe capable of synchronously adjusting length and width as claimed in claim 6, wherein the folding locking wrench (41) further comprises a spring (412) embedded outside the rotating rod (411) and capable of moving the rotating rod (411) upwards after the folding locking wrench (41) is turned over and closed, so that the gear (42) is meshed with the ring-shaped teeth (31), one end of the spring (412) is pressed against the bottom surface of the gear (42), and the other end of the spring is pressed against the upper surface of the shoe bottom (1).

8. A novel racing shoe with the length and the width synchronously adjusted according to claim 3, 6 or 7, characterized in that a containing cavity (7) with a concave shape is further arranged on the bottom surface of the shoe bottom (1), the first through hole (40) is arranged in the containing cavity (7), the top of the containing cavity (7) is in a through open shape, and the folding locking wrench (41) is arranged on the bottom surface below the containing cavity (7).

9. A novel racing shoe with synchronously adjusted length and width as claimed in claim 8, characterized in that the folding spanner (41) is a turnover piece (413) in the shape of a flat plate, and the hinge point of the folding spanner (41) and the rotating rod (411) is located at two thirds of the turnover piece (413).

10. A novel racing shoe with synchronously adjusted length and width as claimed in claim 8, characterized in that said folding locking wrench (41) is a turning piece (413) fitted to said shoe bottom (1) in a Z-shape, and the hinge point of said folding locking wrench (41) and said rotating rod (411) is located at two thirds of said turning piece (413).

11. A novel racing shoe with the length and the width synchronously adjusted according to claim 1, characterized in that a first guide groove (21) is further arranged on the bottom surface of the toe part (2) in a vertically penetrating manner, and a guide block (20) which can extend into the first guide groove (21) and can move back and forth along the first guide groove (21) extends upwards on the bottom surface of the sole part (1).