Novel shoe with adjustable height

Abstract

According to the height-adjustable novel shoe, the front end of an adjusting sole is rotationally connected with a supporting sole to provide a structural foundation for height adjustment of the heel of the shoe, a supporting assembly is used for supporting the adjusting sole and changing the included angle between the adjusting sole and the supporting sole, and a locking mechanism is used for maintaining the included angle. The shoe can meet the height requirements of different wearing scenes for the heel part of the shoe, the shoe is simple and effective in structure, and the problem that an existing shoe rear sole height adjusting structure is poor in reliability can be effectively solved; in addition, when the heel of the shoe rises, the elastic adjusting piece is gradually arched, and when the heel of the shoe falls, the elastic adjusting piece is gradually expanded, and the arched height is gradually reduced; in the whole adjusting process, the arching height of the elastic adjusting piece dynamically changes and is matched with the inclination angle of the adjusting sole in real time, a proper supporting effect is provided for the forefoot all the time, forward movement of the foot is avoided, and the shoe is more comfortable and reliable to wear.

Description

Technical Field

[0001] The utility model belongs to the technical field of height adjustment in shoes, and particularly relates to a new type of shoe with adjustable height. Background Art

[0002] In daily life, to adapt to different walking scenarios, attending occasions, and outfits, people not only have requirements for the types and appearances of shoes but also have different requirements for the height of the heels of shoes. However, since the height of the heels of conventional shoes is fixed, when the demand changes, only by changing shoes can the height of the heels of shoes be changed. This causes the female group, who pays more attention to comfort and outfits, to often need to bring additional shoes when going out. For example, when driving to a banquet, flat shoes need to be worn to ensure safety while driving, and high heels need to be worn to meet etiquette and outfit needs when entering the banquet, which makes traveling rather troublesome.

[0003] Currently, there are also some structural designs of shoes with adjustable height, but the effects are not ideal and the practicability is poor. For example, a variable-height heel disclosed in Chinese Patent CN102232670A folds the heel into the concave cavity of the sole to change the height of the heel of the shoe, but there are only two adjustable heights, and the shape of the sole does not change with the height, resulting in poor wearing comfort. Another example is a shoe with adjustable heel height disclosed in Chinese Patent CN103238981A, which sets a height-adjustable bracket at the heel between the outer sole and the midsole of the shoe. And a shoe with adjustable heel height disclosed in Chinese Patent CN107307507B designs the heel as a telescopic structure and sets a bracket with adjustable support height inside it. The human body gravity acts entirely on the bracket, which requires a high structural strength of the bracket and has poor reliability. There are also a heel-height adjustable slipper disclosed in Chinese Patent CN201379121Y and a casual shoe with adjustable inner height increase disclosed in CN215225124U. Both of these two solutions set an inclined support rod at the heel between the outer sole and the midsole of the shoe, and adjust the angle of the inclined support rod by adjusting the position where the lower end of the inclined support rod abuts against the toothed adjustment plate, thereby adjusting the height of the shoe. Although the structure is relatively simple, the inclined support rod is prone to disengage from the toothed adjustment plate during walking, resulting in accidental changes in the height of the shoe and poor reliability.

[0004] Therefore, it is necessary to design a shoe with adjustable heel height, good comfort, and practical and reliable structure to meet the height requirements of the heels of shoes in different wearing scenarios. Summary of the Invention

[0005] Aiming at the above deficiencies of the prior art, the purpose of the utility model is to provide a new type of shoe with adjustable height, solve the technical problem of poor reliability of the existing shoe heel height adjustment structure, and achieve practical and comfortable wearing effects.

[0006] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] A novel shoe with adjustable height, comprising a sole, the sole including a support sole and an adjustment sole, the adjustment sole being located above the support sole, the front end of the adjustment sole being rotatably connected to the support sole through a first rotating shaft arranged along the shoe width direction; behind the first rotating shaft, a support assembly is provided below the adjustment sole, the support assembly including a support seat and a support arm, the support seat being slidably connected to the support sole and capable of sliding back and forth, the support arm being located between the support seat and the adjustment sole, one end of the support arm being rotatably connected to the adjustment sole through a second rotating shaft and the other end being rotatably connected to the support seat through a third rotating shaft, both the second rotating shaft and the third rotating shaft being arranged along the shoe width direction, and a locking mechanism for restricting and releasing the sliding of the support seat is further provided on the sole.

[0008] Further, the adjustment sole is located behind the support sole, the front end of the adjustment sole is rotatably connected to the rear end of the support sole through the first rotating shaft, the support seat forms the heel of the sole, a connecting rod is provided between the support seat and the support sole along the shoe length direction, the rear end of the connecting rod is fixedly connected to the support seat, and the front end extends into the support seat and is slidably matched to realize the sliding connection between the support seat and the support sole.

[0009] Further, an elastic adjustment piece is provided in front of the adjustment sole on the support sole, the elastic adjustment piece and the support sole are in the same thickness direction, either the front end or the rear end of the elastic adjustment piece is fixed at a position on the support sole as a fixed end, and the other end is used as a movable end, and an adjustment mechanism is provided between the movable end and the front end of the connecting rod. When the adjustment sole rotates and rises, the adjustment mechanism can drive the movable end to move towards the fixed end, causing the elastic adjustment piece to undergo elastic deformation and arch upwards.

[0010] Further, a receiving groove is formed in front of the adjustment sole on the support sole, the front end of the connecting rod extends into the receiving groove and is connected with a driving block, the driving block can move back and forth in the receiving groove along with the connecting rod, and when the driving block moves forward, it corresponds to the rotation and rise of the adjustment sole; a limiting hole is formed in the rear side wall of the receiving groove, the elastic adjustment piece is movably arranged in the receiving groove and is located above the driving block, a limiting portion corresponding to the limiting hole is formed by the rear end protrusion of the elastic adjustment piece, the limiting portion is located in the limiting hole, two guiding portions are formed by the front end protrusion of the elastic adjustment piece, the guiding portions are slidably connected with the receiving groove and can move back and forth, the driving block is located between the two guiding portions, a sliding block is provided between the driving block and the guiding portions, the sliding block is slidably connected with the receiving groove and can slide along the shoe width direction; in the shoe width direction, the size of the driving block increases from front to back, and both side surfaces form a first guiding surface, the inner side surface and the end surface of the guiding portion are connected by an inclined surface, and the inclined surface forms a second guiding surface. The sliding blocks are respectively abutted against the first guiding surface and the second guiding surface, so that the two sliding blocks move away from each other and push the guiding portion to move backward when the driving block moves forward; the front end of the elastic adjustment piece is used as the movable end and the rear end is used as the fixed end, and the driving block and the sliding block form the adjustment mechanism.

[0011] Furthermore, a front cover is provided above the guide portion in the accommodating groove, and the front cover is connected to the supporting bottom by fasteners. A sliding groove is formed between the front cover and the bottom surface of the accommodating groove for the guide portion to move forward and backward and prevent the guide portion from upwardly escaping from the accommodating groove.

[0012] Furthermore, a dovetail groove extending along the width of the shoe is provided on the bottom surface of the slider, and a connecting protrusion adapted to the dovetail groove is provided on the bottom surface of the receiving groove. The dovetail groove cooperates with the connecting protrusion to enable the slider to be slidably connected to the receiving groove and prevent the slider from moving upward.

[0013] Furthermore, the rear end of the support sole is raised along the length direction of the shoe to form a columnar connection part, the end surface of the connection part is provided with a connection hole extending forward, the front end of the connecting rod is inserted into the connection hole and slidably matched, and the locking mechanism is arranged on the connection part; the outer sleeve of the connecting rod is provided with a telescopic dust cover, and the two ends of the telescopic dust cover are respectively connected to the free end of the connection part and the support seat

[0014] Furthermore, a clearance hole is provided on the connecting part, which is connected to the connecting hole. A plurality of locking holes are provided on the connecting rod at intervals along the length direction. The connecting rod can slide to connect each locking hole with the clearance hole one by one. The locking mechanism includes a locking pin slidably connected in the clearance hole. The diameter of the locking pin matches the locking hole. The sliding of the locking pin can make the inner end of the locking pin enter and exit the locking hole opposite to the clearance hole, and the outer end of the locking pin extends out of the connecting part so that the locking pin can be pulled outward to release the sliding restriction. An elastic element is operatively connected between the locking pin and the connecting part. The elastic element enables the locking pin to maintain a tendency to slide inward so as to maintain a restricted sliding state in the absence of external force.

[0015] Furthermore, a circle of abutment is formed on the radial protrusion of the locking pin, and the locking pin has multiple radial dimensions at the abutment; the clearance hole is divided into a sliding section and a limit platform stage from the inside to the outside, and the sliding section is adapted to the cross-sectional shape and size of the locking pin at the abutment, the inner diameter of the limit platform stage is larger than the minimum radial dimension of the sliding section, and a compression spring is provided in the lock pin outer sleeve in the limit platform stage, and a side cover plate is connected to the outer end of the limit platform stage, the outer end of the compression spring abuts against the side cover plate, and the inner end abuts against the inner end surface or the abutment portion of the limit platform stage.

[0016] Furthermore, the top surface of the support seat has a downwardly extending clearance opening, the lower end of the support arm is located in the clearance opening, and the third rotating shaft passes through the support seat and the lower end of the support arm, so that the support arm is rotatably connected to the support seat; an elastic baffle is provided at the upper end of the support seat to cover the clearance opening, and the elastic baffle has a clearance opening for the lower end of the support arm to pass through, the elastic baffle is in the shape of an arc with the middle part arched upward and is coaxial with the third rotating shaft, the elastic baffle is slidably connected to the support seat and can slide along its own arc path, so that the sliding of the elastic baffle is adapted to the rotation of the support arm.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. For the novel shoes with adjustable height of the present utility model, the rotational connection between the front end of the adjustable sole and the supporting sole provides a structural basis for adjusting the height of the heel of the shoes. The supporting assembly is used to support the adjustable sole and change the included angle between the adjustable sole and the supporting sole, and the locking mechanism is used to maintain the included angle between the adjustable sole and the supporting sole, so that the shoes can meet the height requirements of the heel of the shoes in different wearing scenarios; the structure of the novel shoes with adjustable height is simple and effective, which can effectively solve the problem of the reliability of the current height adjustment structure of the rear sole of the shoes, and achieve the effects of practicality and comfortable wearing.

[0019] 2. For the shoes with adjustable height of the rear sole of the present utility model, during the process of the adjustable sole rotating and rising, the elastic adjusting piece gradually arches. During the process of the adjustable sole rotating and descending, the elastic adjusting piece gradually relaxes and the arching height gradually decreases; during the whole adjustment process, the arching height of the elastic adjusting piece changes dynamically and matches the inclination angle of the adjustable sole in real time, always providing a more appropriate supporting effect for the forefoot, avoiding the forward movement of the foot, and being beneficial to improving the comfort and reliability of wearing of the shoes with adjustable height of the rear sole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the novel shoes with adjustable height according to the embodiment in the adjusted high position;

[0021] Figure 2 A front view of the novel shoes with adjustable height according to the embodiment in the adjusted high position;

[0022] Figure 3 A top view of the novel shoes with adjustable height according to the embodiment in the adjusted high position;

[0023] Figure 4 For Figure 3 A cross-sectional schematic view along A-A in

[0024] Figure 5 For Figure 4 A cross-sectional schematic view along B-B in

[0025] Figure 6 A perspective view of the novel shoes with adjustable height according to the embodiment in the adjusted low position;

[0026] Figure 7 A front view of the novel shoes with adjustable height according to the embodiment in the adjusted low position;

[0027] Figure 8 A top view of the novel shoes with adjustable height according to the embodiment in the adjusted low position;

[0028] Figure 9 For Figure 8 A cross-sectional schematic view along C-C in

[0029] Figure 10 is Figure 9 Schematic cross-sectional view along D-D in

[0030] Figure 11 is the exploded view of the support base described in the embodiment;

[0031] Figure 12 is the exploded view of the locking mechanism described in the embodiment

[0032] Figure 13 is the assembly drawing of the locking mechanism described in the embodiment;

[0033] Figure 14 is the partial schematic view of the locking mechanism described in the embodiment in the unlocked state;

[0034] Figure 15 is Figure 14 Schematic cross-sectional view along E-E in

[0035] Figure 16 is the exploded view of the connection structure of the connecting rod, support base and support arm described in the embodiment;

[0036] Figure 17 is the assembly drawing of the connection structure of the connecting rod, support base and support arm described in the embodiment;

[0037] Figure 18 is the three-dimensional view of the adjustment base described in the embodiment;

[0038] Figure 19 is the three-dimensional view of the first rotating shaft described in the embodiment;

[0039] Figure 20 is the three-dimensional view of the second rotating shaft and the third rotating shaft described in the embodiment;

[0040] Figure 21 is Figure 4 Enlarged schematic view at F in

[0041] Figure 22 is Figure 9 Enlarged schematic view at G in

[0042] Among them, there are a supporting bottom 1, a first shaft hole 10, a relief notch 11, a receiving groove 12, a limiting hole 13, a front cover plate 15, an engaging groove 15, a forward extending groove 16, a backward extending groove 17, a rear cover plate 18, a connecting protrusion 19; an adjusting bottom 2, a second connecting lug 21, a backing plate 22, an inner bottom 23, a first connecting lug 24; a first rotating shaft 30, a spline nut 31, a second rotating shaft 32, a male pin 33, a female pin 34, a first limiting ring 35, a second limiting ring 37, a third rotating shaft 38, a retaining piece 39; a support base 40, a support body 41, a through hole 42, a relief opening 43, a decorative housing 44, a resilient retaining piece 45, a relief opening 46, a gasket 47; a support arm 50, a third connecting lug 51; a connecting rod 60, a second shaft hole 61, a connecting portion 62, a reinforcing portion 63, a telescopic dust cover 64, a relief hole 65, a sliding section 66, a limiting platform stage 67, a sliding groove 68, a locking hole 69, a transverse protrusion 70; a locking pin 80, a butting portion 81, a butting body 82, a butting protrusion 83, a compression spring 84, a side cover plate 85, a screw 86, a pin 88, a handle 89; a resilient adjusting piece 90, a driving block 91, a limiting portion 92, a guiding portion 93, a slider 94, a first guiding surface 95, a second guiding surface 96, an engaging portion 97, a dovetail groove 98. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0044] Embodiment:

[0045] Please refer to Figure 2 and Figure 4 , a novel shoe with adjustable height, including a shoe sole, the shoe sole includes a supporting bottom 1 and an adjusting bottom 2, the adjusting bottom 2 is located above the supporting bottom 1, and the front end of the adjusting bottom 2 is rotationally connected to the supporting bottom 1 through a first rotating shaft 30 arranged along the shoe width direction; behind the first rotating shaft 30, a supporting assembly for adjusting the included angle between the adjusting bottom 2 and the supporting bottom 1 is provided below the adjusting bottom 2, the supporting assembly includes a support base 40 and a support arm 50, the support base 40 is slidably connected to the supporting bottom 1 and can slide back and forth, the front-back direction corresponds to the shoe length direction, the support arm 50 is located between the support base 40 and the adjusting bottom 2, one end of the support arm 50 is rotationally connected to the adjusting bottom 2 through a second rotating shaft 32 and the other end is rotationally connected to the support base 40 through a third rotating shaft 38, both the second rotating shaft 32 and the third rotating shaft 38 are arranged along the shoe width direction, and a locking mechanism for restricting sliding and releasing sliding is provided on the supporting bottom 1.

[0046] The height-adjustable new shoe described in the utility model, after the locking structure is adjusted to the unlocked state for releasing the restricted sliding, since the upper and lower ends of the support arm 50 are rotatably connected to the adjustment bottom 2 and the support seat 40 respectively, the support seat 40 can be moved forward and backward to change the angle of the support arm 50, so that the vertical height of the support arm 50 changes, and then the angle between the adjustment bottom 2 and the support bottom 1 is changed. When the height of the shoe heel corresponding to the angle meets the use requirements, the locking structure is adjusted to the locked state for restricting sliding, so that the height of the shoe heel remains unchanged; the height-adjustable new shoe described in the utility model, the front end of the adjustment bottom 2 is rotatably connected to the support bottom 1 to provide a structural basis for adjusting the height of the shoe heel, the support assembly is used to support the adjustment bottom 2 and change the angle between the adjustment bottom 2 and the support bottom 1, and the locking mechanism is used to maintain the angle between the adjustment bottom 2 and the support bottom 1, so that the shoe can meet the height requirements of the shoe heel in different wearing scenarios; the structure of the height-adjustable new shoe is simple and effective, which can effectively solve the problem of the reliability of the current height adjustment structure of the rear sole of the shoe, and achieve a practical and comfortable wearing effect.

[0047] During implementation, the adjusting bottom 2 can be rotatably connected to the front end of the supporting bottom 1, and the top surface of the adjusting bottom 2 bears the sole of the foot as the sole support surface, or the adjusting bottom 2 can be rotatably connected to the middle part of the supporting bottom 1, and the top surface of the front half of the supporting bottom 1 bears the front sole of the foot, and the adjusting bottom 2 bears the rear sole of the foot, and the two together serve as the sole support surface; a dovetail groove or a trapezoidal groove is provided on the top surface of the supporting bottom 1, and a convex block adapted to the dovetail groove or the trapezoidal groove is formed at the bottom of the supporting seat 40 to realize the sliding connection between the supporting seat 40 and the supporting bottom 1; correspondingly, the locking mechanism can adopt the following structural form Type: a threaded hole is provided on the bottom surface of the protrusion and extends vertically to the support seat 40, a stud is arranged in the threaded hole, a groove connected to the threaded hole is provided on the side of the support seat 40, an adjusting wheel is arranged in the groove, and the adjusting wheel is partially located outside the groove, the adjusting wheel is restricted in vertical movement by the groove, the stud passes through the middle of the adjusting wheel and is threadedly connected, and a plurality of locking grooves are arranged at intervals along the length direction of the shoe on the bottom surface of the dovetail groove or the trapezoidal groove. When in use, the adjusting wheel can be turned to drive the stud to move upward in the threaded hole, thereby falling into or out of the locking groove to restrict the support seat 40 from sliding and release the restriction.

[0048] In this embodiment, Figure 2 and Figure 4As shown in the figure, the adjustment sole 2 is placed above the rear of the support sole 1. The front end of the adjustment sole 2 is rotatably connected to the rear end of the support sole 1 through the first rotating shaft 30. The support seat 40 forms the heel of the new type of shoe with adjustable height. A connecting rod 60 is provided between the support seat 40 and the support sole 1 along the shoe length direction. The rear end of the connecting rod 60 is fixedly connected to the support seat 40, and the front end extends into the support sole 1 and is slidably matched to realize the sliding connection between the support seat 40 and the support sole 1. In this way, the top surface of the support sole 1 is used to carry the front foot sole, and the top surface of the adjustment sole 2 is used to carry the rear foot sole. The two together serve as the foot sole support surface, which is adapted to the human foot structure, so that the foot sole support surface can still provide a relatively stable and comfortable support for the foot sole after the adjustment sole 2 is rotated and adjusted. In addition, using the connecting rod 60 instead of the cooperation of the above-mentioned protrusion and the dovetail groove 98 or trapezoidal groove to realize the sliding of the support seat 40 not only saves the rear half of the support sole 1, makes the new type of shoe with adjustable height lighter and more beautiful in shape, but also the connecting rod 60, the support arm 50 and the adjustment sole 2 are connected to form a relatively stable triangular support structure, which is beneficial to improving the practicability and reliability of the new type of shoe with adjustable height.

[0049] In addition, considering that the support sole 1 corresponding to the front foot sole is shorter than the adjustment sole 2, in order to improve the structural strength of the connection between the connecting rod 60 and the support sole 1 and reduce the possibility of lateral (shoe width direction) swing and deformation of the connecting rod 60, please refer to Figure 4 and Figure 5 , it is designed that the rear end of the support sole 1 protrudes along the shoe length direction to form a columnar connecting part 62. The end face of the connecting part 62 is provided with a connecting hole extending forward. The front end of the connecting rod 60 extends into the connecting hole and is slidably matched. The locking mechanism is arranged on the connecting part 62. In this embodiment, in order to further improve the structural strength, it is also designed that the rear end of the support sole 1 protrudes to form two reinforcing parts 63. The two reinforcing parts 63 are respectively located on the lateral sides of the connecting part 62, and the reinforcing parts 63 obliquely extend to be connected to the free end of the connecting part 62. Please refer to Figure 7 、 Figure 16 and Figure 17 , an expansion dust-proof sleeve 64 is sleeved between the free end of the connecting part 62 of the outer connecting rod 60 and the support seat 40. The two ends of the expansion dust-proof sleeve 64 are respectively connected to the free end of the connecting part 62 and the support seat 40 to reduce the possibility of sliding obstruction caused by dust and sundries adhering to the connecting rod 60 and the connecting hole.

[0050] Please refer to Figures 12 to 15, based on the structure where the connecting rod 60 is slidably connected to the support base 1 through the connecting portion 62, the structure of the locking mechanism is designed as follows: A relief hole 65 is formed in the connecting portion 62, and the relief hole 65 communicates with the connecting hole. A plurality of locking holes 69 are provided at intervals along the length direction on the connecting rod 60. The sliding of the connecting rod 60 can make each locking hole 69 communicate with the relief hole 65 one by one; The locking mechanism includes a locking pin 80 slidably connected in the relief hole 65. The diameter of the locking pin 80 matches that of the locking hole 69. The sliding of the locking pin 80 can make the inner end of the locking pin 80 enter and exit the locking hole 69 opposite to the relief hole 65. The outer end of the locking pin 80 extends outside the connecting portion 62 so as to pull the locking pin 80 outward to release the sliding restriction. An elastic element is connected between the locking pin 80 and the connecting portion 62, and the elastic element makes the locking pin 80 maintain a tendency to slide inward so as to maintain the state of restricting sliding without external force;

[0051] In this way, when it is necessary to adjust the height of the heel of the shoe, pull the locking pin 80 outward to make the inner end of the locking pin 80 exit the locking hole 69 and hold it. At this time, the sliding of the connecting rod 60 in the connecting hole is not blocked, and the support seat 40 can be moved back and forth to change the angle between the adjusting sole 2 and the support base 1, thereby adjusting the height of the heel of the shoe; When the required height is adjusted, release the locking pin 80, and the locking pin 80 slides inward under the elastic force of the elastic element, so that the inner end enters the locking hole 69 opposite to the relief hole 65 at this time. At this time, the sliding of the connecting rod 60 in the connecting hole is blocked by the cooperation between the locking pin 80 and the locking hole 69, thereby fixing the height of the heel of the shoe; Only two locking holes 69 are shown in the drawings of the specification. As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, when the inner end of the locking pin 80 is located in the locking hole 69 at the rear position, the novel shoe with adjustable height is in the state of adjusting to the high position. As Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, when the inner end of the locking pin 80 is located in the locking hole 69 at the front position, the novel shoe with adjustable height is in the state of adjusting to the low position.

[0052] Please refer to Figure 12 and Figure 15 , a circumferential abutting portion 81 is formed by radially protruding on the locking pin 80. The locking pin 80 has a plurality of radial dimensions at the abutting portion 81. The relief hole 65 is divided into a sliding section 66 and a limiting platform section 67 from the inside to the outside. The sliding section 66 is adapted to the cross-sectional shape and dimensions of the locking pin 80 at the abutting portion 81; The inner diameter of the limiting platform section 67 is larger than the minimum radial dimension of the sliding section 66. A compression spring 84 is sleeved outside the locking pin 80 in the limiting platform section 67. The outer end of the limiting platform section 67 is connected with a side cover plate 85 by a screw 86. The outer end of the compression spring 84 abuts against the side cover plate 85, and the inner end abuts against the inner end face of the limiting platform section 67 or the abutting portion 81;

[0053] Thus, the locking pin 80 has multiple radial dimensions at the abutment portion 81, that is, the abutment portion 81 is not circular. In practice, the cross section of the abutment portion 81 may be elliptical, rectangular, trapezoidal, etc. Figure 12 and Figure 15 As shown, in this embodiment, the abutting portion 81 includes a circular abutting body 82 and abutting protrusions 83 on opposite sides of the body, the sliding section 66 is a circular hole with an inner diameter adapted to the abutting body 82, and a sliding groove 68 adapted to the abutting protrusion 83 is penetrated along the length direction on the inner wall of the sliding section 66; when the height of the shoe heel needs to be adjusted, after the locking pin 80 is pulled outward to make the inner end of the locking pin 80 exit the locking hole 69, it is only necessary to rotate the locking pin 80 to make the abutting protrusion 83 staggered with the sliding groove 68, at this time, the abutting protrusion 83 abuts against the inner end surface of the limit platform stage 67, and even if the locking pin 80 is released, it will not move inward, which is conducive to reducing the difficulty of adjusting the height; when adjusted to the required height, it is only necessary to rotate the locking pin 80 to realign the abutting protrusion 83 with the sliding groove 68, and the locking pin 80 can move inward under the elastic force of the compression spring 84, so that the inner end enters the locking hole 69 opposite to the clearance hole 65 at this time, thereby fixing the height of the shoe heel.

[0054] See also Figure 12 and 13 For easy operation, a handle 89 is connected to the outer end of the locking pin 80 through a pin 88.

[0055] See also Figure 11 and Figure 18 The rear end of the support base 1 is laterally penetrated with a first shaft hole 10, and a spline nut 31 is integrally formed and embedded in the support base 1 at one end of the first shaft hole 10. The rear end of the support base 1 is also provided with a clearance notch 11 connected to the first shaft hole 10. The clearance notches 11 are multiple and are arranged at intervals laterally. The front end protrusion of the adjustment base 2 is formed with multiple first connecting ears 24, and the multiple first connecting ears 24 are arranged at intervals laterally. The first connecting ears 24 are one-to-one located in the clearance notches 11. The first rotating shaft 30 is as shown in FIG. Figure 19 As shown, the rod portion passes through the first axial hole 10 and each first connecting lug 24 and is threadedly connected to the spline nut 31 .

[0056] See also Figure 16 and Figure 18 , a plurality of second connecting ears 21 are formed on the bottom surface of the adjusting bottom 2, and the plurality of second connecting ears 21 are arranged at intervals in the horizontal direction, and a plurality of third connecting ears 51 are formed on the upper end of the supporting arm 50, and the plurality of third connecting ears 51 are arranged at intervals in the horizontal direction, and the plurality of second connecting ears 21 are staggered with the plurality of third connecting ears 51 and the shaft holes are coaxial; Figure 20As shown, the second rotating shaft 32 is composed of a sub-pin 33 and a mother pin 34. One end of the mother pin 34 protrudes radially to form a first limiting ring 35, and a threaded hole is provided on the end face of the other end. The sub-pin 33 is a screw, and a second limiting ring 37 is formed on the head of the sub-pin 33 relative to its rod part. During assembly, the mother pin 34 is passed through each second connecting ear 21 and each third connecting ear 51, and then the sub-pin 33 is threadedly connected to the mother pin 34. The first limiting ring 35 and the second limiting ring 37 play a limiting role and can prevent the second rotating shaft 32 from slipping out laterally.

[0057] Please refer to Figure 16 and 17 , the support base 40 includes a support body 41. The rear end of the connecting rod 60 is in a sheet shape and is provided with a second shaft hole 61. The diameter of the second shaft hole 61 matches the outer diameter of the mother pin 34. The connecting rod 60 is made of a metal part, and the rear end of the connecting rod 60 is integrally formed and embedded in the support body 41. A through hole 42 corresponding to the second shaft hole 61 is provided on the support body 41. The upper end of the support body 41 has a relief opening 43 communicating with the inside, so that the lower end of the support arm 50 can extend into the support body 41 to be rotatably connected to the rear end of the connecting rod 60. The third rotating shaft 38 has the same structural form as the second rotating shaft 32.

[0058] Please refer to Figure 16 , a decorative housing 44 is covered on the support body 41 to block the third rotating shaft 38 and the through hole 42 to improve the appearance of the support base 40. The upper end of the decorative housing 44 has a notch corresponding to the relief opening 43; Flap 39 is attached to both ends of the first rotating shaft 30 and the second rotating shaft 32 to improve the appearance.

[0059] Please refer to Figure 16 , it is designed that the upper end of the support body 41 is in a semi-circular arc shape and is coaxial with the third rotating shaft 38. An elastic flap 45 is provided between the support body 41 and the decorative housing 44 at the relief opening 43. The elastic flap 45 is correspondingly bent into a semi-circular arc shape. The elastic flap 45 is slidably connected to the decorative housing 44 or the support body 41 and can slide along its semi-circular arc path. A relief opening 46 for the lower end of the support arm 50 to pass through is provided on the elastic flap 45;

[0060] In this way, when the support arm 50 rotates relative to the support base 40, the elastic flap 45 slides along the semi-circular arc path at the relief opening 43 following the support arm 50. When the adjustment bottom is at a high position, the positional relationship among the support base, the elastic flap, and the support arm is as shown in Figure 21 , when the adjustment bottom is at a low position, the positional relationship among the support base, the elastic flap, and the support arm is as shown in Figure 22 . It can be seen that except for the position where the support arm 50 passes through, the relief opening 43 is always blocked by the elastic flap 45, which can effectively reduce the possibility that the rotation of the support arm 50 and the support base 40 is blocked due to dust and sundries entering the inside of the support body 41 from the relief opening 43.

[0061] Please refer to Figure 1 and Figure 16 , in the novel height-adjustable shoe described in this embodiment, the support base 40 serves as the heel of the sole. A gasket 47 for contacting the ground is provided at the bottom of the support base 40. The gasket 47 can be made of an elastic and wear-resistant material such as rubber to improve the comfort and durability of wearing.

[0062] Please refer to Figure 11 , an elastic adjusting piece 90 is provided in front of the adjusting base 2 on the support base 1. The elastic adjusting piece 90 is in the same thickness direction as the support base 1. Either the front or the rear end of the elastic adjusting piece 90 is fixed at a position on the support base 1 as a fixed end, and the other end is used as a movable end. An adjusting mechanism is provided between the movable end and the front end of the connecting rod 60. When the adjusting base 2 rotates and rises, the adjusting mechanism can drive the movable end to move towards the fixed end, causing the elastic adjusting piece 90 to undergo elastic deformation and arch upwards; in this embodiment, as shown in Figures 2 and Figure 7 shown, within the range where the support base 40 can move forward and backward, the forward movement of the support base 40 and the connecting rod 60 corresponds to the rotation and rise of the adjusting base 2; during implementation, the rear end of the elastic adjusting piece 90 can be used as the movable end, and a push plate that abuts against the movable end is connected to the front end of the connecting rod 60, so that when the connecting rod 60 moves forward, it pushes the movable end towards the fixed end, causing the elastic adjusting piece 90 to undergo elastic deformation and arch upwards.

[0063] Specifically, as Figure 10 and Figure 11As shown in the figure, in the present utility model, a receiving groove 12 is provided in front of the adjusting bottom 2 on the supporting bottom 1. The front end of the connecting rod 60 extends into the receiving groove 12 and is connected with a driving block 91. The driving block 91 can move back and forth in the receiving groove 12 along with the connecting rod 60, and when the driving block 91 moves forward, the adjusting bottom 2 rotates and rises correspondingly; a limiting hole 13 is provided on the rear side wall of the receiving groove 12. An elastic adjusting piece 90 is movably arranged in the receiving groove 12 and is located above the driving block 91. A limiting portion 92 corresponding to the limiting hole 13 is formed by the rear end protrusion of the elastic adjusting piece 90. The limiting portion 92 is located in the limiting hole 13. Two guiding portions 93 are formed by the front end protrusion of the elastic adjusting piece 90. The guiding portions 93 are slidably connected with the receiving groove 12 and can move back and forth. The driving block 91 is located between the two guiding portions 93. A sliding block 94 is arranged between the driving block 91 and the guiding portions 93. The sliding block 94 is slidably connected with the receiving groove 12 and can slide along the shoe width direction; in the shoe width direction, the size of the driving block 91 increases from front to back, and both side surfaces form a first guiding surface 95. The inner side surface and the end surface of the guiding portion 93 are connected by an inclined surface, and the inclined surface forms a second guiding surface 96. The sliding blocks 94 are respectively in contact with the first guiding surface 95 and the second guiding surface 96, so that the two sliding blocks 94 move away from each other and push the guiding portions 93 to move backward when the driving block 91 moves forward; the front end of the elastic adjusting piece 90 is the movable end, and the rear end is the fixed end. The driving block 91 and the sliding block 94 form the adjusting mechanism.

[0064] Thus, as Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, during the process of rotating the adjusting bottom 2 through the supporting assembly according to the wearing requirements, when the adjusting bottom 2 rotates and rises, that is, when the included angle between the adjusting bottom 2 and the supporting bottom 1 increases, the corresponding supporting seat 40, connecting rod 60 and driving block 91 move forward. Since the lateral dimension of the driving block 91 increases from front to back, the driving block 91 located in the receiving groove 12 moves forward. The driving block 91 squeezes through the first guiding surface 95 to make the two sliding blocks 94 slide in the direction away from each other. At the same time, the sliding block 94 squeezes through the second guiding surface 96 of the guiding portion 93 to make the guiding portion 93 move backward, that is, to make the front end of the elastic adjusting piece 90 approach the rear end. The elastic adjusting piece 90 undergoes elastic deformation and arches upward. The part of the top surface of the elastic adjusting piece 90 facing the rear abuts against the front sole of the foot, which can effectively reduce the possibility of the foot slipping forward due to the inclination of the adjusting bottom 2; as Figure 7 , Figure 8 , Figure 9 and Figure 10 ​As shown, when the adjusting base 2 rotates downward, that is, when the included angle between the adjusting base 2 and the supporting base 1 is decreased, the corresponding supporting seat 40, connecting rod 60 and driving block 91 move backward. Since the lateral dimension of the driving block 91 increases from front to back, the driving block 91 located in the accommodating groove 12 moves backward, continuously releasing the lateral movement restriction on the two side sliders 94. The elastic potential energy stored by the elastic adjusting piece 90 due to elastic deformation is continuously released, causing the front end of the elastic adjusting piece 90 to gradually move away from the rear end, and the arch height of the elastic adjusting piece 90 decreases. At the same time, the guiding portion 93 pushes the two side sliders 94 to move closer to each other and reset through the second guiding surface 96;

[0065] During the process of the adjusting base 2 rotating upward, the elastic adjusting piece 90 gradually arches. During the process of the adjusting base 2 rotating downward, the elastic adjusting piece 90 gradually relaxes and the arch height gradually decreases. During the entire adjustment process, the arch height of the elastic adjusting piece 90 changes dynamically, matching the inclination angle of the adjusting base 2 in real time, and always providing a more suitable supporting effect for the front sole of the foot, which is beneficial to improving the comfort and reliability of wearing the shoe with an adjustable height of the rear sole of the shoe.

[0066] Please refer to Figure 11 , a front cover plate 15 is provided above the guiding portion 93 in the accommodating groove 12, and the front cover plate 15 is connected to the supporting base 1 by a screw 86; in this way, a sliding groove 68 for the guiding portion 93 to move back and forth is formed between the front cover plate 15 and the bottom surface of the accommodating groove 12, and at the same time, it can prevent the guiding portion 93 from disengaging upward from the accommodating groove 12; in this embodiment, a plate-shaped connecting portion 97 is further protruded above the front cover plate 15 at the front end of the elastic adjusting piece 90, and the top surface of the front cover plate 15 has a connecting groove 15 matching the connecting portion 97. The connecting portion 97 is located in the connecting groove 15 and makes the top surfaces of the elastic adjusting piece 90 and the front cover plate 15 smoothly connected; in this way, when the elastic adjusting piece 90 arches, when a large gap is easily formed between the rearward movement of the front end of the elastic adjusting piece 90 and the edge of the opening of the accommodating groove 12, the connecting portion 97 closes the gap, which can effectively prevent foot tissues from falling into the gap and being pinched, or the soft inner sole 23 laid above from falling into the gap and causing the elastic adjusting piece 90 to deform and move and be stuck; it is beneficial to improve the comfort and reliability of wearing the shoe with an adjustable height of the rear sole of the shoe.

[0067] In addition, as Figure 5 , Figure 10 , Figure 11 and Figure 17As shown, the two sides of the front end of the connecting rod 60 have transverse protrusions 70, making the front end of the connecting rod 60 T-shaped. The rear end of the driving block 91 is vertically provided with a T-shaped connecting groove adapted to the rear end of the connecting rod 60. To facilitate placing the driving block 91 in the accommodating groove 12 and allowing it to slide back and forth, there is also a forward extension groove 16 adapted to the front end of the driving block 91 between the two sliders 94 at the front end of the accommodating groove 12, and a backward extension groove 17 adapted to the rear end of the driving block 91 between the two sliders 94 at the rear end of the accommodating groove 12. The forward extension groove 16 is covered by the front cover plate 15, and a rear cover plate 18 is correspondingly provided above the backward extension groove 17 for covering and vertical limiting.

[0068] Please refer to Figure 11 , a dovetail groove 98 extending in the shoe width direction is formed on the bottom surface of the slider 94, and a connecting protrusion 19 adapted to the dovetail groove 98 is provided on the bottom surface of the accommodating groove 12. The cooperation between the dovetail groove 98 and the connecting protrusion 19 enables the slider 94 to be slidably connected to the accommodating groove 12 and prevents the slider 94 from moving upward; in this embodiment, the vertical cross-section and three-dimensional structure of the slider 94 are respectively as shown in Figure 10 and Figure 11 shown.

[0069] To better understand the solution of the present invention, based on the conventional structure composition of the shoe sole, an example of the shoe with adjustable rear sole height of the present invention is given: The conventional structure of the shoe sole is generally composed of an outsole, a midsole, and an insole 23 that are sequentially covered and connected from bottom to top. Among them, the outsole is used to contact the ground, has a relatively hard texture, and has good wear resistance. The midsole has a slightly softer texture and is mainly used to maintain the shape of the shoe sole and provide shock absorption. The insole 23 is used to contact the foot and is mostly made of relatively soft rubber, sponge, cloth, etc. to improve the wearing comfort; in this embodiment, the support sole 1 and the adjustment sole 2 are jointly used as the midsole of the shoe sole. A backing plate 22 is covered on the bottom surface of the support sole 1. The backing plate 22 and the gasket 47 are made of the same material. The backing plate 22 and the gasket 47 jointly serve as the outsole of the shoe sole. To improve the wearing comfort, a flexible shoe sole insole 23 is covered on the top surfaces of the support sole 1 and the adjustment sole 2.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Those of ordinary skill in the art should understand that any modifications or equivalent replacements made to the technical solution of the present invention without departing from the purpose and scope of the present technical solution shall be covered by the scope of the claims of the present invention.

Claims

1. A new type of height-adjustable shoe, characterized by: The shoe sole comprises a supporting bottom and an adjusting bottom, the adjusting bottom is located above the supporting bottom, and the front end of the adjusting bottom is rotatably connected to the supporting bottom via a first rotating shaft arranged along the shoe width direction; a supporting assembly is arranged behind the first rotating shaft and below the adjusting bottom, the supporting assembly comprises a supporting seat and a supporting arm, the supporting seat is slidably connected to the supporting bottom and can slide back and forth, the supporting arm is located between the supporting seat and the adjusting bottom, one end of the supporting arm is rotatably connected to the adjusting bottom via a second rotating shaft, and the other end is rotatably connected to the supporting seat via a third rotating shaft, the second rotating shaft and the third rotating shaft are both arranged along the shoe width direction, and a locking mechanism for limiting and releasing the sliding of the supporting seat is also arranged on the shoe sole.

2. A novel height-adjustable shoe according to claim 1, characterized in that: The adjusting bottom is located behind the supporting bottom, and the front end of the adjusting bottom is rotatably connected to the rear end of the supporting bottom through a first rotating shaft. The supporting seat is formed as the heel of the sole, and a connecting rod is provided between the supporting seat and the supporting bottom along the length direction of the shoe. The rear end of the connecting rod is fixedly connected to the supporting seat, and the front end extends into the supporting seat and slides to cooperate to realize the sliding connection between the supporting seat and the supporting bottom.

3. A new type of height-adjustable shoe according to claim 2, characterized in that: An elastic adjusting plate is provided on the support bottom in front of the adjusting bottom, and the thickness direction of the elastic adjusting plate is consistent with that of the support bottom. One end of the front or rear of the elastic adjusting plate is fixed at the position of the support bottom and serves as a fixed end, and the other end serves as a movable end. An adjusting mechanism is provided between the movable end and the front end of the connecting rod. When the adjusting bottom is rotated and raised, the adjusting mechanism can drive the movable end to move toward the fixed end, causing the elastic adjusting plate to undergo elastic deformation and arch upward.

4. A new height-adjustable shoe according to claim 3, characterized in that: A receiving groove is provided on the support bottom in front of the adjusting bottom, and the front end of the connecting rod extends into the receiving groove and is connected to a driving block. The driving block can move forward and backward in the receiving groove along with the connecting rod, and the driving block moves forward to correspond to the rotation and elevation of the adjusting bottom; a limiting hole is provided on the rear side wall of the receiving groove, and the elastic adjusting piece is movably arranged in the receiving groove and is located above the driving block, and the rear end protrusion of the elastic adjusting piece is formed with a limiting portion corresponding to the limiting hole, and the limiting portion is located in the limiting hole, and the front end protrusion of the elastic adjusting piece is formed with two guide portions, which are slidably connected to the receiving groove and can move forward and backward, and the driving block is located between the two guide portions. The guide portion is provided between the driving block and the guide portion, and the sliding block is slidably connected to the accommodating groove and can slide along the width direction of the shoe; in the width direction of the shoe, the size of the driving block increases from front to back, and the two side surfaces form a first guide surface, the inner side surface and the end surface of the guide portion are connected by an inclined surface, and the inclined surface forms a second guide surface, and the sliding block abuts against the first guide surface and the second guide surface respectively, so that the two sliding blocks move away from each other and push the guide portion to move backward when the driving block moves forward; the front end of the elastic adjusting sheet becomes the movable end and the rear end becomes the fixed end, and the driving block and the sliding block form the adjusting mechanism.

5. A new type of height-adjustable shoe according to claim 4, characterized in that: A front cover is provided above the guide part in the accommodating groove, and the front cover is connected to the supporting bottom by fasteners. A sliding groove is formed between the front cover and the bottom surface of the accommodating groove for the guide part to move forward and backward, and prevents the guide part from upwardly escaping from the accommodating groove.

6. A new type of height-adjustable shoe according to claim 4, characterized in that: A dovetail groove extending along the width of the shoe is provided on the bottom surface of the slider, and a connecting protrusion adapted to the dovetail groove is provided on the bottom surface of the receiving groove. The dovetail groove and the connecting protrusion cooperate to enable the slider to be slidably connected to the receiving groove and prevent the slider from moving upward.

7. The novel height-adjustable shoe according to claim 2, characterized in that: The rear end of the support sole protrudes along the length direction of the shoe to form a columnar connecting part, and the end face of the connecting part is provided with a connecting hole extending forward, the front end of the connecting rod extends into the connecting hole and slides together, and a locking mechanism is arranged on the connecting part; a telescopic dust cover is arranged on the outer sleeve of the connecting rod, and the two ends of the telescopic dust cover are respectively connected to the free end of the connecting part and the support seat.

8. A new type of height-adjustable shoe according to claim 7, characterized in that: A clearance hole is provided on the connecting part, which is connected with the connecting hole. A plurality of locking holes are provided on the connecting rod at intervals along the length direction. The connecting rod slides to connect each locking hole with the clearance hole one by one. The locking mechanism includes a locking pin slidably connected in the clearance hole. The diameter of the locking pin matches the locking hole. The sliding of the locking pin allows the inner end of the locking pin to enter and exit the locking hole opposite to the clearance hole. The outer end of the locking pin extends out of the connecting part so that the locking pin can be pulled outward to release the sliding restriction. An elastic element is operatively connected between the locking pin and the connecting part. The elastic element enables the locking pin to maintain a tendency to slide inward so as to maintain a restricted sliding state in the absence of external force.

9. A new height-adjustable shoe according to claim 8, characterized in that: A circle of abutment is formed on the radial protrusion of the lock pin, and the lock pin has multiple radial dimensions at the abutment; the clearance hole is divided into a sliding section and a limit stage from the inside to the outside, and the sliding section is adapted to the cross-sectional shape and size of the lock pin at the abutment; the inner diameter of the limit stage is larger than the minimum radial dimension of the sliding section; a compression spring is provided in the lock pin outer sleeve in the limit stage, and a side cover is connected to the outer end of the limit stage; the outer end of the compression spring abuts against the side cover, and the inner end abuts against the inner end surface or the abutment of the limit stage.

10. The novel height-adjustable shoe according to claim 1, characterized in that: The top surface of the support seat has a downwardly extending clearance opening, the lower end of the support arm is located in the clearance opening, and the third rotating shaft passes through the support seat and the lower end of the support arm, so that the support arm is rotatably connected to the support seat; an elastic baffle is provided at the upper end of the support seat to cover the clearance opening, and the elastic baffle has a clearance opening for the lower end of the support arm to pass through, the elastic baffle is in an arc shape with the middle part arched upward and is coaxial with the third rotating shaft, the elastic baffle is slidably connected to the support seat and can slide along its own arc path, so that the sliding of the elastic baffle is adapted to the rotation of the support arm.

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