Shoe with height convenient to adjust

Abstract

According to the shoe convenient to adjust the height, on the basis that an adjusting sole can be overturned front and back based on a supporting sole, the height of a heel is adjusted by changing the included angle between the adjusting sole and the supporting sole, and the rear sole of the supporting sole is located at different heights, supporting columns and pawls are arranged on the supporting sole and the adjusting sole respectively; the supporting column is matched with clamping teeth on the pawl through the tooth grooves to form a ratchet mechanism. In the wearing state, the whole height adjusting process does not need to stand with one foot, the height is adjusted and reduced easily, the height is adjusted and increased even without hands, the problem that the height of the heel of an existing shoe is inconvenient to adjust can be effectively solved, the operation difficulty of height adjustment is reduced, and the practicability and the use safety of the shoe convenient to adjust the height are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of height adjustment in shoes, and in particular relates to a shoe with convenient height adjustment. Background Art

[0002] In daily life, in order to adapt to different walking scenes, attending occasions and dressing, people not only have requirements for the type and appearance 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 needs change, the height of the heels can only be changed by changing shoes. This leads to women who pay more attention to comfort and dressing, and often need to bring extra shoes when going out. For example, when driving to a banquet, they need to wear flat shoes to ensure safety when driving the vehicle, and they need to wear high heels when entering the banquet to meet etiquette and dressing, which makes travel more troublesome.

[0003] At present, there are some height-adjustable shoe structures, but the effect is not ideal and the practicality is poor. In order to meet the height requirements of the shoe heel in various wearing scenarios, the applicant has previously designed a shoe with an adjustable heel height and a reliable structure. For details, please refer to Chinese patent CN118680361A for a shoe with an adjustable rear sole height. The patent solution is provided with an adjustment sole that can be flipped back and forth based on the support sole. By changing the angle between the adjustment sole and the support sole, the heel height is adjusted and the rear sole of the foot is supported at different heights. A sliding assembly is provided between the adjustment sole and the support sole for supporting and locking the angle, so that the shoe can meet the needs of various wearing scenarios. The user has a need for heel height under the shoe; however, when adjusting the height, it is necessary to first lift the shoe off the ground, release the interaction force between the adjustment sole and the support sole, and then use the index finger and thumb of one hand to press the buttons on both sides of the sliding assembly to adjust the locking structure to the unlocked state to release the restricted sliding, and at the same time adjust the heel height by moving the sliding assembly back and forth; this results in the user needing to pinch the sliding assembly hard to move it back and forth to adjust the height, and may also require the user to stand on one foot when wearing the shoe, and at the same time adjust the foot posture to match the change in heel height, which is not only inconvenient to adjust the height but also easy to cause people to fall. Therefore, it is necessary to design a shoe that is height-adjustable and more convenient to use. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a shoe with convenient height adjustment, solve the technical problem of the inconvenience of adjusting the height of the heel of the shoe, and achieve the effect of reducing the difficulty of using height-adjustable shoes and improving their practicality.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The shoe with convenient height adjustment comprises a sole, wherein the sole comprises a support bottom and an adjustment bottom, the adjustment bottom is located above the support bottom, and the front end of the adjustment bottom is rotatably connected to the support bottom via a first rotating shaft arranged along the width direction of the shoe; an adjustment assembly is provided between the adjustment bottom and the support bottom behind the first rotating shaft, and the adjustment assembly comprises a support column, a pawl and an elastic member, the support column is vertically fixed to the support bottom, a plurality of tooth grooves are vertically distributed on one side surface of the support column, the pawl is close to the support column and is located on the side where the tooth groove is located, the pawl has a tooth matching the tooth groove, and the pawl is connected to the support bottom by a horizontally arranged The second rotating shaft is rotatably connected to the adjusting base, and the rotation of the pawl can make the latch tooth fall into and out of the tooth groove. The latch tooth falling into the tooth groove is a locked state that restricts the rotation and descent of the adjusting base, and the latch tooth disengages from the tooth groove is an unlocked state in which the adjusting base can rotate freely. When the latch tooth falls into the lowest tooth groove, the rear end of the supporting base and the adjusting base have a certain vertical spacing, and the elastic member is respectively connected to the adjusting base and the pawl. The elastic force of the elastic member makes the pawl maintain the rotation trend of the latch tooth moving toward the supporting column. An unlocking structure for driving the pawl to rotate and making the latch tooth disengage from the tooth groove is provided on the adjusting base or the supporting base.

[0006] Furthermore, a clearance groove is provided on the lower surface of the adjusting bottom, and the upper end of the support column can rotate in and out of the clearance groove as the adjusting bottom rotates. When the latch tooth falls into the lowest tooth groove, the upper end of the support column is located in the clearance groove.

[0007] Furthermore, the rear side surface of the support column is an arc surface concentric with the first rotating shaft, and the multiple tooth grooves are located on the arc surface and distributed in an arc shape accordingly.

[0008] Furthermore, the support column is bent into an arc shape in the vertical direction and is concentric with the first rotating shaft. The lower surface of the adjusting bottom is raised in front of the give way groove to form a guide plate. The rear side surface of the guide plate is smoothly connected to the front wall surface of the give way groove, and forms an arc-shaped guide surface that slides with the front side surface of the support column. When the locking tooth falls into the uppermost tooth groove, the upper end of the support column is higher than the lower end of the guide plate; the two ends of the guide plate in the width direction of the shoe extend backward to form side baffles. In the width direction of the shoe, the support column is located between the two side baffles and slides with them.

[0009] Furthermore, the middle part of the pawl is rotatably connected to the adjustment base through a second rotating shaft, the lower end of the pawl forms a latching tooth, and the upper end is located in the give way groove. A sliding channel is provided in the adjustment base along the length of the shoe, and the front end of the sliding channel extends to communicate with the give way groove, and the rear end extends to the rear end surface of the adjustment base. A push rod is provided for sliding in the sliding channel, and the length of the push rod is greater than the length of the sliding channel. The push rod slides forward to push the upper end of the pawl to rotate forward and disengage the latching tooth from the tooth groove. The push rod and the sliding channel form the unlocking structure.

[0010] Furthermore, an installation groove connected to the sliding channel is provided on the adjusting bottom, and the elastic member is a spring. The spring is located in the installation groove and is sleeved on the push rod. The two ends of the spring are respectively connected to the push rod and the adjusting bottom. The upper end of the pawl is provided with a vertically extending waist-shaped hole along the width direction of the shoe. A transmission rod adapted to the width of the waist-shaped hole is movably provided in the waist-shaped hole. The front end of the push rod is fixedly connected to the transmission rod, and the elastic force of the spring acts on the pawl through the push rod and the transmission rod.

[0011] Furthermore, a pressing groove is provided on the rear end surface of the adjusting sole, which is connected to the sliding channel along the length direction of the shoe. A pressing head matching the pressing groove is connected to the rear end of the push rod. The pressing head is located in the pressing groove and slides together. When the pressing head slides forward until it abuts against the bottom surface of the pressing groove, it corresponds to an unlocked state.

[0012] Furthermore, a limiting groove is provided on the rear wall of the positioning groove, and the limiting groove is connected to the sliding channel along the length direction of the shoe. The front end of the push rod is connected to the limiting head, and the rear end of the limiting head is located in the limiting groove and slides together. The front end of the limiting head is connected to the transmission rod, and the limiting head slides backward until it abuts against the bottom surface of the limiting groove, which corresponds to a locking state.

[0013] Furthermore, an elastic adjustment plate is provided on the support base in front of the adjustment base. The thickness direction of the elastic adjustment plate is consistent with that of the support base. One end of the front or rear of the elastic adjustment plate is fixed at the position of the support base and serves as a fixed end, and the other end serves as a movable end. An adjustment mechanism is connected between the movable end and the front end of the adjustment base. When the adjustment base rotates and rises, the adjustment mechanism drives the movable end to move toward the fixed end, causing the elastic adjustment plate to undergo elastic deformation and arch upward.

[0014] Furthermore, a accommodating groove is provided on the supporting bottom in front of the adjusting bottom, and limiting holes are respectively provided on the front and rear side walls of the accommodating groove. The elastic adjusting piece is movably arranged in the accommodating groove, and the front and rear ends of the elastic adjusting piece are respectively raised to form limiting protrusions corresponding to the limiting holes, and the limiting protrusions are located in the corresponding limiting holes and slide together; a traction channel extending to the front end of the adjusting bottom is provided on the rear side wall of the accommodating groove, and a cable is slidably provided in the traction channel, and the front end of the elastic adjusting piece serves as the movable end and is connected to the front end of the cable, and the rear end of the cable is connected to the front end of the adjusting bottom. When the adjusting bottom is rotated and raised, the cable moves backward and pulls the movable end toward the fixed end, and the cable and the traction channel form the adjustment mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The height-adjustable shoes of the present invention are characterized in that the adjusting sole can be flipped forward and backward based on the supporting sole. By changing the angle between the adjusting sole and the supporting sole, the heel height is adjusted and the heel of the foot is supported at different heights. A support column and a pawl are respectively provided on the supporting sole and the adjusting sole. The support column cooperates with the teeth on the pawl through the tooth groove to form a ratchet mechanism. When worn, the entire height adjustment process does not require standing on one foot. Adjusting to reduce the height is relatively simple, and adjusting to increase the height does not even require hands. This can effectively solve the problem of inconvenient heel height adjustment of existing shoes, reduce the difficulty of height adjustment operation, and improve the practicality and safety of use of the height-adjustable shoes.

[0016] 2. The shoes with convenient height adjustment described in the present invention have a recess on the lower surface of the adjusting sole for accommodating the upper end of the support column. When the lowest height of the adjusting sole is the same, a higher support column can be set compared to when the adjusting sole abuts against the upper end of the support column at the lowest height, so that more teeth and grooves can be set on the support column to obtain a larger height adjustment range. In addition, during the height adjustment process, since the pawl rotates with the adjusting sole, the movement trajectory of the latch tooth is arc-shaped. The support column is designed to bend in an arc shape in the vertical direction and be concentric with the first rotating shaft, so that the distribution state of the teeth and grooves is adapted to the movement trajectory of the latch tooth, which is beneficial to ensure the stability of the cooperation between the latch tooth and each tooth groove and improve the reliability of the height adjustment.

[0017] 3. The height-adjustable shoes of the present invention are provided with a sliding channel in the adjusting sole, and a push rod is provided in the sliding channel as an unlocking structure, which not only avoids the unlocking structure from being exposed but also makes the unlocking operation simple and easy; in addition, a spring is used as an elastic member and is placed behind the makeshift groove to avoid occupying the makeshift groove space, and the spring is placed in an installation groove vertically connected to the sliding channel, and the spring is sleeved on the push rod, which not only facilitates limiting the position and deformation direction of the spring and enables the spring to smoothly play its corresponding role, but also the spring and the push rod share part of the installation space, which is conducive to improving the compactness of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the shoe with convenient height adjustment according to the embodiment at the minimum height; Figure 2 A top view of the shoe with convenient height adjustment according to the embodiment at the minimum height; Figure 3 for Figure 2 Schematic diagram of the cross section along AA; Figure 4 for Figure 3 Schematic diagram of the front half of the shoe; Figure 5 A perspective view of the shoe with convenient height adjustment according to the embodiment at its maximum height; Figure 6A top view of the shoe with convenient height adjustment according to the embodiment at its maximum height; Figure 7 for Figure 6 Schematic diagram of the cross section along BB; Figure 8 for Figure 7 Schematic diagram of the front half of the shoe; Figure 9 A schematic diagram of the height-adjustable shoe according to an embodiment in a locked state; Figure 10 A schematic diagram of the height-adjustable shoe according to an embodiment of the present invention in an unlocked state; Figure 11 This is an exploded schematic diagram of the support base and related components described in the embodiment; Figure 12 This is an exploded schematic diagram of the adjusting bottom and related components described in the embodiment; Figure 13 is a three-dimensional diagram of the inner bottom described in the embodiment; Figure 14 A three-dimensional diagram of the first rotating shaft of the embodiment; Figure 15 A perspective view of the instep strap and ankle strap according to the embodiment; Among them, the supporting bottom 1, the adjusting bottom 2, the first rotating shaft 3, the supporting column 4, the pawl 5, the tooth groove 6, the latch 7, the second rotating shaft 8, the elastic member 9, the supporting front bottom 10, the supporting rear bottom 11, the first supporting pad 12, the rotating connecting portion 13, the first shaft hole 14, the connecting notch 15, the rotating lug 16, the screw 17, the second supporting pad 18, the third supporting pad 19, the guide surface 20, the stop surface 21, the yield groove 22, the guide plate 23, the side baffle 24, the dovetail groove 25, the rib 26, the sliding channel 27, the push rod 28, the mounting portion 29, the mounting groove 30, the spring 31, and the waist-shaped hole 32 , transmission rod 33, card slot 34, elastic collar 35, pressing slot 36, pressing head 37, limiting slot 38, limiting head 39, second axial hole 40, third axial hole 41, making way gap 42, fourth axial hole 43, first pin hole 44, second pin hole 45, pin shaft 46, elastic adjusting piece 47, accommodating slot 48, limiting hole 49, limiting protrusion 50, slide slot 51, slide column 52, traction channel 53, cable 54, traction part 55, threaded hole 56, threaded pressure column 57, insole 58, foot strap 59, ankle strap 60, front connecting slot 61, rear connecting slot 62, recessed portion 63. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Example: In order to adapt to different walking scenarios, attending occasions and dressing styles, people have various requirements for the height of shoe heels. Since the height of conventional shoe heels is fixed, when the needs change, the height of the shoe heels can only be changed by replacing shoes. When going out, you may need to carry several pairs of shoes, which makes travel more troublesome. For this reason, the present invention provides a shoe with convenient height adjustment.

[0021] See Figure 1 and Figure 5 The shoe with convenient height adjustment comprises a sole, which comprises a supporting sole 1 and an adjusting sole 2. The adjusting sole 2 is located above the supporting sole 1, and the front end of the adjusting sole 2 is rotatably connected to the supporting sole 1 via a first rotating shaft 3 arranged along the width direction of the shoe; see Figure 3 and Figure 7 An adjustment assembly is provided between the adjustment base 2 and the support base 1 behind the first rotating shaft 3. The adjustment assembly includes a support column 4, a pawl 5 and an elastic member 9. The support column 4 is vertically fixed on the support base 1. A plurality of tooth grooves 6 are vertically distributed on one side of the support column 4. The pawl 5 is close to the support column 4 and is located on the side where the tooth groove 6 is located. The pawl 5 has a latching tooth 7 that matches the tooth groove 6. The pawl 5 is rotatably connected to the adjustment base 2 through a transversely arranged second rotating shaft 8. The rotation of the pawl 5 can cause the latching tooth 7 to fall into and out of the tooth groove 6. When the latch 7 falls into the tooth groove 6, it is a locked state that restricts the adjustment base 2 from rotating and descending. When the latch 7 is disengaged from the tooth groove 6, it is an unlocked state in which the adjustment base 2 can rotate freely. When the latch 7 falls into the lowest tooth groove 6, there is a certain vertical distance between the rear end of the support base 1 and the adjustment base 2. The elastic member 9 is respectively connected to the adjustment base 2 and the pawl 5. The elastic force of the elastic member 9 enables the pawl 5 to maintain the rotation trend of the latch 7 toward the support column 4. An unlocking structure for driving the pawl 5 to rotate and disengaging the latch 7 from the tooth groove 6 is provided on the adjustment base 2 or the support base 1.

[0022] During implementation, the adjusting sole 2 can be rotatably connected to the front end of the supporting sole 1, and the adjusting sole 2 supports the sole of the foot, or the adjusting sole 2 can be rotatably connected to the middle part of the supporting sole 1, and the front half of the supporting sole 1 supports the front sole of the foot, and the adjusting sole 2 supports the rear sole of the foot. In this embodiment, the adjusting sole 2 is rotatably connected to the middle part of the supporting sole 1, which is compatible with the structure of the human foot, so that the adjusting sole 2 can still provide a relatively stable and comfortable support for the sole of the foot after rotating to adjust the height; specifically, Figure 11 and Figure 12 As shown, the support bottom 1 is divided into a support front bottom 10 and a support rear bottom 11. A first support pad 12 is connected to the bottom of the support front bottom 10. The rear end of the support front bottom 10 is bent upward to form a rotation connection part 13. The rotation connection part 13 is penetrated by a first axis hole 14 along the width direction of the shoe. A plurality of connection notches 15 are opened on the rotation connection part 13. The front end protrusion of the adjustment bottom 2 is formed with a plurality of rotation ears 16 distributed at intervals along the width direction of the shoe. The rotation ears 16 fall into the connection notches 15 one by one. Figure 14The first rotating shaft 3 shown passes through the first shaft hole 14 and each rotating lug 16, so that the adjusting base 2 is rotatably connected to the supporting base 1, the supporting rear base 11 is connected to the rear of the supporting front base 10, and the front end of the supporting rear base 11 is lower than the rotating connection part 13. A screw 17 is provided through the middle of the supporting rear base 11. The rod of the screw 17 is located above the supporting base 1 and is fixedly connected to the support column 4. The head of the screw 17 is located below the supporting base 1 and is connected to the second support pad 18. The rear end of the supporting rear base 11 is connected to the third support pad 19.

[0023] Understandably, if Figure 10 As shown, ratchet teeth are formed between adjacent tooth grooves 6 on the rear side of the support column 4. The ratchet teeth include a guide surface 20 and a stop surface 21. The guide surface 20 is an inclined surface that serves as a guide, and the stop surface 21 is a steep surface that serves as a start and stop. The support column 4 cooperates with the tooth groove 6 and the latching teeth 7 on the pawl 5 to form a ratchet mechanism. In this embodiment, the guide surface 20 of the ratchet teeth faces downward and the stop surface 21 faces upward. Figure 9 When the latch tooth 7 falls into the tooth groove 6, the latch tooth 7 abuts against the stop surface 21 in the vertical direction, preventing the support column 4 and the pawl 5 from moving toward each other, thereby limiting the rotation and descent of the adjustment base 2. The support column 4 supports the adjustment base 2 through the pawl 5, so that the support base 1 maintains the current height. When the adjustment base 2 is lifted by external force, the latch tooth 7 can swing out of the latch tooth 7 under the guidance of the guide surface 20, so that the adjustment base 2 can rotate and rise; the elastic force of the elastic member 9 makes the pawl 5 maintain the rotation trend of the latch tooth 7 moving toward the support column 4, ensuring that the latch tooth 7 and the tooth groove 6 are stably matched. When the adjustment base 2 is lifted by external force, the elastic force of the elastic member 9 needs to be overcome.

[0024] The shoe with convenient height adjustment of the present invention has an adjusting sole 2 that can be flipped back and forth based on the support sole 1, and the angle between the adjusting sole 2 and the support sole 1 is changed, so as to adjust the heel height and support the rear sole of the foot at different heights. An adjusting assembly that is different from the sliding assembly in the previous design is designed between the adjusting sole 2 and the support sole 1. In the adjusting assembly, the support column 4 and the pawl 5 are respectively arranged on the support sole 1 and the adjusting sole 2, and the support column 4 cooperates with the latching teeth 7 on the pawl 5 through the tooth groove 6 to form a ratchet mechanism; when wearing, the front end of one shoe can be directly extended into between the rear end of the support sole 1 and the adjusting sole 2 of the other shoe through the above-mentioned vertical spacing, and the support sole 1 can be pressed to keep the support column 4 stationary, so that the heel of the other shoe is lifted up, and the adjusting sole 2 is lifted up with the help of the shoe back or ankle strap 60 to increase the heel height of the shoe, and the unlocking structure can be operated with one hand to disengage the latching teeth 7 from the tooth groove 6, as shown in the figure Figure 10The unlocked state is shown, and then the adjusting sole 2 is pressed down with the heel to reduce the heel height of the shoe; the entire adjustment process does not require standing on one foot, and it is relatively simple to adjust the height to reduce, and even no hands are needed to adjust the height to increase, which can effectively solve the problem of inconvenience in adjusting the heel height of the current shoes, is conducive to reducing the difficulty of height adjustment operation, and improving the practicality and safety of the shoes with convenient height adjustment.

[0025] See Figure 1 、 Figure 2 and Figure 3 , a clearance groove 22 is provided on the lower surface of the adjusting base 2, and the upper end of the support column 4 can rotate in and out of the clearance groove 22 with the adjusting base 2. When the latch tooth 7 falls into the lowest tooth groove 6, the upper end of the support column 4 is located in the clearance groove 22; in this way, when the lowest height of the adjusting base 2 is the same, compared with the adjusting base 2 abutting against the upper end of the support column 4 at the lowest height, the clearance groove 22 is provided on the lower surface of the adjusting base 2 to accommodate the upper end of the support column 4, which allows a higher support column 4 to be set, so that more tooth grooves 6 can be set on the support column 4 to obtain a larger height adjustment range.

[0026] See Figure 9 and Figure 10 The rear side surface of the support column 4 is an arc surface concentric with the first rotating shaft 3, and the multiple tooth grooves 6 are located on the arc surface and are correspondingly distributed in an arc shape; in this way, the pawl 5 is correspondingly arranged on the rear side of the support column 4, which has a larger arrangement space and activity space than the front side, which is conducive to avoiding interference between the pawl 5 and the adjustment base 2 and the support base 1; in the process of adjusting the height, since the pawl 5 rotates with the adjustment base 2, the movement trajectory of the latch tooth 7 is an arc shape, the rear side surface of the support column 4 is designed to be an arc surface, and the tooth grooves 6 are opened on the rear side surface of the support column 4, so that the distribution state of the tooth grooves 6 is adapted to the movement trajectory of the latch tooth 7, which is conducive to ensuring the stability of the cooperation between the latch tooth 7 and each tooth groove 6, and improving the reliability of the height adjustment.

[0027] See Figure 10 and Figure 12The support column 4 is curved in the vertical direction and is concentric with the first rotating shaft 3. The lower surface of the adjusting bottom 2 is raised in front of the giving groove 22 to form a guide plate 23. The rear side surface of the guide plate 23 is smoothly connected to the front wall surface of the giving groove 22, and forms an arc guide surface that slides with the front side surface of the support column 4. When the latch tooth 7 falls into the uppermost tooth groove 6, the upper end of the support column 4 is higher than the lower end of the guide plate 23; the two ends of the guide plate 23 in the shoe width direction extend backward to form side baffles 24 respectively. In the shoe width direction, the support column 4 is located between the two side baffles 24 and slides with each other; in this way, on the basis of the curved surface of the rear side surface of the support column 4, the support column 4 is further designed to be curved as a whole, and the relative position of the adjusting bottom 2 to the upper end of the support column 4 remains unchanged during the rotation process. The giving groove 22 is located at this relative position, which is conducive to reducing the size of the giving groove 22 and reducing the influence of the giving groove 22 on the structural strength of the adjusting bottom 2. In addition, if Figure 5 and 12 As shown, a guide plate 23 is provided on the lower surface of the adjusting base 2 and forms an arc-shaped guide surface with the front wall surface of the give way groove 22. During the height adjustment process, the front side surface of the support column 4 always slides with the arc-shaped guide surface, and the rear side surface of the support column 4 abuts against the latching teeth 7 on the pawl 5 through the tooth groove 6, thereby limiting the relative movement of the adjusting base 2 and the support column 4 in the shoe length direction. At the same time, the guide plate 23 extends to form a side baffle 24, and the two sides of the support column 4 in the shoe width direction respectively slide with the two side baffles 24, thereby limiting the relative movement of the adjusting base 2 and the support column 4 in the shoe width direction, which is conducive to ensuring the stable function of the adjusting assembly and improving the structural reliability and practicality of the shoe that is convenient for adjusting height; in this embodiment, a vertical dovetail groove 25 is also provided on the arc-shaped guide surface, and a convex rib 26 that is adapted to the shape of the dovetail groove 25 is provided on the front side surface of the support column 4. The convex rib 26 is located in the dovetail groove 25 and slides and fits, which is conducive to further ensuring the stability of the cooperation between the support column 4 and the adjusting base 2.

[0028] During implementation, the unlocking structure can adopt a variety of structural forms, such as directly setting a lever on the side of the pawl 5, and moving the pawl 5 by the lever when in use to disengage the tooth 7 from the tooth groove 6, or setting a pull rope behind the pawl 5, and pulling the pawl 5 by the pull rope when in use to disengage the tooth 7 from the tooth groove 6.

[0029] See Figure 9 and Figure 10The pawl 5 is connected to the adjusting base 2 by the second rotating shaft 8, and the lower end of the pawl 5 is formed with a latching tooth 7, and the upper end is located in the giving groove 22. A sliding channel 27 is provided in the adjusting base 2 along the length of the shoe. The front end of the sliding channel 27 extends to communicate with the giving groove 22, and the rear end extends to the rear end surface of the adjusting base 2. A push rod 28 is provided to slide in the sliding channel 27. The length of the push rod 28 is greater than the length of the sliding channel 27. The push rod 28 slides forward to push the upper end of the pawl 5 to rotate forward and disengage the latching tooth 7 from the tooth groove 6. The push rod 28 and the sliding channel 27 form the unlocking structure. In this way, the position of the unlocking structure for the user to operate is located at the rear end of the adjusting base 2. When it is necessary to unlock and make the adjusting base 2 rotate and lower, the rear end of the push rod 28 can be directly pressed to make the push rod 28 slide forward and push the upper end of the pawl 5 to rotate forward, thereby disengaging the latching tooth 7 from the tooth groove 6 to complete the unlocking. The unlocking operation is simple and easy, which is conducive to reducing the difficulty of using the shoes with convenient height adjustment and improving practicality. Figure 5 、 Figure 9 and Figure 12 As shown, in this embodiment, the lower surface of the adjusting sole 2 is also protruded to form two mounting portions 29, the two mounting portions 29 are located behind the side baffle 24, and are respectively located on both sides of the pawl 5 in the width direction of the shoe, and the second rotating shaft 8 is connected between the two mounting portions 29. In this way, it is convenient to reasonably arrange the pawl 5 when the thickness of the adjusting sole 2 is limited, ensuring the normal operation of the pawl 5 and avoiding interference.

[0030] Based on the above structure, it is conceivable to place the elastic member 9 in the clearance groove 22 and abut between the front side wall of the clearance groove 22 and the upper end of the pawl 5. However, this will undoubtedly occupy the space of the clearance groove 22, affecting the clearance groove 22 to accommodate the support column 4, and further affecting the height adjustment range. To avoid this problem, please refer to Figure 9 、 Figure 10 and Figure 12The present invention is designed to open a mounting groove 30 connected to the sliding channel 27 on the adjusting bottom 2, and the elastic member 9 is a spring 31. The spring 31 is located in the mounting groove 30 and is sleeved on the push rod 28. The two ends of the spring 31 are respectively connected to the push rod 28 and the adjusting bottom 2. The upper end of the pawl 5 is penetrated by a waist-shaped hole 32 extending vertically along the width direction of the shoe. A transmission rod 33 adapted to the width of the waist-shaped hole 32 is movably provided in the waist-shaped hole 32. The front end of the push rod 28 is connected to the transmission rod 33, and the elastic force of the spring 31 acts on the pawl 5 through the push rod 28 and the transmission rod 33. In this way, the spring 31 is used as the elastic member 9 and is placed behind the give way groove 22 to avoid occupying the give way groove 22 space. The spring 31 is placed in the mounting groove 30 vertically connected to the sliding channel 27, and the spring 31 is sleeved on the push rod 28. It is not only convenient to limit the position and deformation direction of the spring 31, so that the spring 31 can smoothly play its corresponding role, but also the spring 31 and the push rod 28 The shared installation space is conducive to improving the compactness of the overall structure. In addition, since the elastic force of the spring 31 acts on the pawl 5 through the push rod 28, the push rod 28 not only needs to be able to push the upper end of the pawl 5 forward to complete the unlocking, but also needs to be able to pull the upper end of the pawl 5 backward to restore the lock. Since the upper end of the pawl 5 rotates during the process of unlocking and restoring the lock, the position where the upper end of the pawl 5 abuts against the front end of the push rod 28 will change to a certain extent. If the front end of the push rod 28 is directly fixed to the upper end of the pawl 5, it will be difficult to complete the unlocking and locking operations. Therefore, the present invention provides a waist-shaped hole 32 through the upper end of the pawl 5 along the width direction of the shoe, and a transmission rod 33 is movably provided in the waist-shaped hole 32, so that the push rod 28 is connected to the upper end of the pawl 5 through the transmission rod 33. When the push rod 28 moves backward, the transmission rod 33 moves forward and backward synchronously, and the transmission rod 33 guides the upper end of the pawl 5 to rotate back and forth by cooperating with the waist-shaped hole 32, thereby realizing the unlocking and locking operations.

[0031] See Figure 10 and Figure 12 In this embodiment, a circle of slots 34 is provided on the push rod 28, and an elastic clip 35 is fixed on the push rod 28 through the slots 34. The front end of the spring 31 abuts against the front side wall of the mounting groove 30, and the rear end of the spring 31 abuts against the elastic clip 35. The spring 31 is always in a compressed state, so that the push rod 28 maintains a tendency to slide backward. The front end of the push rod 28 abuts against the inner wall of the waist-shaped hole 32 through the transmission rod 33 to transmit elastic force, thereby keeping the upper end of the pawl 5 in a tendency to rotate backward. Correspondingly, the tooth 7 at the lower end of the pawl 5 maintains a tendency to rotate forward. When the push rod 28 is not subjected to external force, the tooth 7 remains in cooperation with the tooth groove 6, thereby ensuring the stability of the locked state.

[0032] See Figure 9 and Figure 10The rear end surface of the adjusting sole 2 is provided with a pressing groove 36, which is connected to the sliding channel 27 along the length of the shoe. The rear end of the push rod 28 is connected to a pressing head 37 that matches the pressing groove 36. The pressing head 37 is located in the pressing groove 36 and slides with it. When the pressing head 37 slides forward and abuts against the bottom surface of the pressing groove 36, it corresponds to an unlocked state; in this way, the rear end of the push rod 28 protrudes from the rear end of the adjusting sole 2 through the pressing head 37, and the cross-sectional size of the pressing head 37 is larger than that of the push rod 28, which is not only conducive to increasing the area for pressing and unlocking and improving the pressing feel, but also when the pressing head 37 slides forward and abuts against the bottom surface of the pressing groove 36, it corresponds to an unlocked state, and feedback of pressing in place can be provided through abutment, which is conducive to improving practicality.

[0033] See Figure 9 and Figure 10 The front end of the limit head 39 is connected to the transmission rod 33, that is, the front end of the push rod 28 is connected to the transmission rod 33 through the limit head 39, and the limit head 39 slides backward until it abuts against the bottom surface of the limit groove 38, corresponding to the locking state; in this way, the pressing head 37 and the limit head 39 are respectively connected at both ends of the push rod 28, which can limit the push rod 28 in the sliding channel 27, which not only prevents the push rod 28 from accidentally falling out, but also facilitates the adjustment of the position of the push rod 28 by the front and rear abutment limit due to the pressing head 37 and the limit head 39 during manufacturing and assembly, ensuring that the effective stroke of the push rod 28 can meet the front and rear rotation of the pawl 5 to complete unlocking and locking.

[0034] See Figure 12, to facilitate assembly, the design of the give way groove 22 vertically penetrates the adjusting bottom 2, the mouth of the mounting groove 30 faces upward, the two mounting parts 29 are penetrated by a second axial hole 40 along the width direction of the shoe, the middle part of the pawl 5 is penetrated by a third axial hole 41 along the width direction of the shoe, the upper end of the pawl 5 is provided with a give way notch 42 connected to the waist-shaped hole 32, the front end of the limiting head 39 is penetrated by a fourth axial hole 43 along the width direction of the shoe, and an accommodating hole is provided on the rear end surface of the limiting head 39, a first pin hole 44 is vertically penetrated on the limiting head 39, and a second pin hole 45 is vertically penetrated at the front end of the push rod 28; during assembly, first install the limiting head 39 into the give way notch 42, and pass the transmission rod 33 through the waist-shaped hole 32 and the fourth axial hole 43, and then put the pawl 5 into the give way groove 22 31 , and pass the second rotating shaft 8 through the second shaft hole 40 and the third shaft hole 41, so that the pawl 5 is rotatably connected to the adjustment bottom 2, and then the spring 31 is placed horizontally in the mounting groove 30, and the fixed pressing head 37 is connected to the rear end of the push rod 28, and the front end of the push rod 28 is inserted into the sliding channel 27, and the front end of the push rod 28 is extended into the yield groove 22 through the spring 31, and the posture of the pawl 5 and the limit head 39 is adjusted so that the front end of the push rod 28 is inserted into the accommodating hole, and then the pin 46 is passed through the first pin hole 44 and the second pin hole 45 to connect the front end of the push rod 28 with the limit head 39, and finally push the pressing head 37 to move the push rod 28 forward, so that the slot 34 is exposed in the mounting groove 30, and the elastic clamping ring 35 is clamped into the slot 34 and abuts against the rear end of the spring 31.

[0035] In the prior design described in the background technology, an elastic adjustment plate is provided on the support base in front of the adjustment base, and the elastic adjustment plate is connected to the front end of the adjustment base through an adjustment mechanism, so that in the process of rotating and raising the adjustment base, the elastic adjustment plate gradually arches up, and in the process of rotating and descending the adjustment base, the elastic adjustment plate gradually relaxes and the arch height gradually decreases; in the entire adjustment process, the arch height of the elastic adjustment plate changes dynamically, and is matched with the inclination angle of the adjustment base in real time, always providing a more appropriate support effect for the forefoot, thereby preventing the foot from moving forward; in the prior design, the adjustment mechanism transmits power through a pull rod. In order to avoid obstruction to the sliding of the pull rod due to deformation of the support base and to ensure smooth movement of related components, a bottom plate is also provided on the support base, and a mounting groove for the pull rod to slide back and forth is formed through the bottom plate. It can be understood that the bottom plate and the pull rod must have strong rigidity, but this will undoubtedly affect the overall flexibility of the support base, thereby affecting the comfort of wearing.

[0036] See Figure 6 、 Figure 7 and Figure 11, Similarly, in order to achieve front and back linkage and prevent the foot from moving forward after the adjustment base 2 is raised, the present invention also provides an elastic adjustment piece 47 on the support base 1. The thickness direction of the elastic adjustment piece 47 is consistent with that of the support base 1. One end of the front and rear of the elastic adjustment piece 47 is fixed at the position of the support base 1 and serves as a fixed end, and the other end serves as a movable end. An adjustment mechanism is connected between the movable end and the front end of the adjustment base 2. When the adjustment base 2 is rotated and raised, the adjustment mechanism drives the movable end to move toward the fixed end, causing the elastic adjustment piece 47 to elastically deform and arch upward; specifically, a accommodating groove 48 is provided on the support base 1 in front of the adjustment base 2, and limiting holes 49 are respectively provided on the front and rear side walls of the accommodating groove 48. The elastic adjustment piece 47 is movably arranged in the accommodating groove 48, and the front and rear ends of the elastic adjustment piece 47 are respectively convex to form limiting protrusions 50 corresponding to the limiting holes 49. The limiting protrusions 50 are located in the corresponding limiting holes 49 and slide in conjunction; like Figure 11 and Figure 8 As shown, the difference is that a sliding groove 51 extending along the length of the shoe is provided on the bottom surface of the accommodating groove 48, and a sliding post 52 is provided in the sliding groove 51. The lower end of the sliding post 52 slides with the sliding groove 51, and a positioning hole adapted to the sliding post 52 is provided on the lower surface of the elastic adjustment piece 47 near its front end. The upper end of the sliding post 52 is located in the positioning hole, and a traction channel 53 extending to the front end of the adjusting sole 2 is provided on the rear side wall of the accommodating groove 48. A cable 54 is slidably provided in the traction channel 53, and the front end of the elastic adjustment piece 47 serves as the movable end. The front end of the cable 54 is sleeved on the sliding post 52, and the rear end of the cable 54 is connected to the front end of the adjusting sole 2. When the adjusting sole 2 is rotated and raised, the cable 54 moves backward and pulls the movable end toward the fixed end. The cable 54 and the traction channel 53 form the adjustment mechanism; like Figure 12 As shown, in this embodiment, the front end of the adjusting base 2 is further provided with a traction portion 55 protruding between the rotating lugs 16. During assembly, the traction portion 55 is also located in the connecting notch 15, and the rear end of the traction channel 53 is connected to the connecting notch 15. A traction hole is formed on the front end surface of the traction portion 55 for accommodating the rear end of the cable 54. The traction portion 55 is further provided with a threaded hole 56 connected to the traction hole. A threaded pressing column 57 is internally threadedly connected to the threaded hole 56. After the rear end of the cable 54 is passed into the traction hole, the threaded pressing column 57 can be tightened to press and secure the rear end of the cable 54 in the traction hole. like Figure 3 and Figure 4 As shown, when the adjustment base 2 is in the low position, the traction portion 55 is at a higher position, the cable 54 is in a relaxed state, and correspondingly, the elastic adjustment piece 47 is also in a relaxed state and the arch height is lower, as shown in FIG. Figure 7 and Figure 5As shown, when the adjusting sole 2 rotates and rises, the traction part 55 rotates and falls accordingly, driving the rear end of the cable 54 to move backward. The cable 54 is in a tensioned state and pulls the front end of the elastic adjusting piece 47 toward the rear end through the sliding column 52, so that the elastic adjusting piece 47 gradually arches; when the adjusting sole 2 rotates and falls, the traction part 55 rises again and relaxes the cable 54, and the elastic adjusting piece 47 relaxes under the action of its own elastic force; during the entire adjustment process, the arch height of the elastic adjusting piece 47 changes dynamically, and is matched in real time with the inclination angle of the adjusting sole 2, always providing a more appropriate support effect for the forefoot, thereby preventing the foot from moving forward; in the present invention, the adjusting sole 2 transmits traction to the elastic adjusting piece 47 through the cable 54. Since the cable 54 is flexible, it has no effect on the overall flexibility of the support body and will not affect the wearing comfort, which is conducive to improving the practicality of the shoes that are easy to adjust in height.

[0037] To facilitate a better understanding of the present invention, the height-adjustable shoes of the present invention are described below based on the structural composition of conventional soles: Conventional soles generally consist of an outsole, a midsole, and an insole 58, which are sequentially connected from bottom to top. The outsole is used for contact with the ground and has a relatively hard texture and good wear resistance. The midsole is slightly softer and is mainly used to maintain the shape of the sole and provide shock absorption and cushioning. The insole 58 is used for contact with the foot and is often made of softer rubber, sponge, and cloth to improve wearing comfort. Figure 1 and Figure 5 As shown, in this embodiment, the support sole 1 and the adjustment sole 2 are used together as the midsole of the sole, and the first support pad 12, the second support pad 18 and the third support pad 19 are used together as the outsole of the sole. In order to improve the wearing comfort, the upper surface of the support front sole 10 and the adjustment sole 2 is also covered with Figure 13 The flexible insole 58 shown in the figure has a recessed portion 63 on the lower surface of the insole 58 that matches the elastic adjustment piece 47 to accommodate the elastic adjustment piece 47, and a corresponding convex portion on the upper surface of the insole 58; the drawings in the specification illustrate the state of the sandals, such as Figure 1 、 Figure 5 and Figure 15 As shown, the sandals have a foot strap 59 and an ankle strap 60, correspondingly, as shown in FIG. Figure 11 As shown, the upper surface of the front sole 10 is provided with front connecting grooves 61 on both sides close to the width direction of the shoe, and the two ends of the foot strap 59 are fixed in the front connecting grooves 61, as shown in FIG. Figure 12As shown, the adjusting sole 2 is provided with rear connecting grooves 62 on both sides in the width direction of the shoe near the rear end, and the two ends of the ankle strap 60 are fixed in the rear connecting grooves 62; for sports shoes, the width of the supporting thick sole can be increased based on the figure, and a flexible or elastic blocking material can be connected between the supporting thick sole and the adjusting sole 2. Without affecting the height change of the adjusting sole 2 based on the rotation of the supporting sole 1, the blocking material is designed to be a semi-enclosed structure, which surrounds and blocks structures such as the pawl 5 and the support column 4. This not only preserves the height adjustment function, but also helps to meet the user's requirements for the appearance of the shoe.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the technical solutions. Those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present invention that do not depart from the purpose and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A shoe with convenient height adjustment, comprising a sole comprising a supporting sole and an adjusting sole, wherein the adjusting sole is located above the supporting sole, and the front end of the adjusting sole is rotatably connected to the supporting sole via a first rotating shaft disposed along the width direction of the shoe; characterized in that: The adjusting base or the supporting base is provided with an unlocking structure for driving the ratchet to rotate and causing the teeth to disengage from the tooth groove.

2. The height-adjustable shoe according to claim 1, characterized in that: The lower surface of the adjusting bottom is provided with a clearance groove, and the upper end of the support column can rotate in and out of the clearance groove as the adjusting bottom rotates. When the latch tooth falls into the lowest tooth groove, the upper end of the support column is located in the clearance groove.

3. The height-adjustable shoe according to claim 2, characterized in that: The rear side surface of the support column is an arc surface concentric with the first rotating shaft, and the multiple tooth grooves are located on the arc surface and distributed in an arc shape accordingly.

4. The height-adjustable shoe according to claim 3, characterized in that: The support column is bent into an arc shape in the vertical direction and is concentric with the first rotating shaft. The lower surface of the adjusting bottom is raised in front of the give way groove to form a guide plate. The rear side surface of the guide plate is smoothly connected to the front wall surface of the give way groove, and forms an arc-shaped guide surface that slides with the front side surface of the support column. When the latch falls into the uppermost tooth groove, the upper end of the support column is higher than the lower end of the guide plate; the two ends of the guide plate in the width direction of the shoe extend backward to form side baffles. In the width direction of the shoe, the support column is located between the two side baffles and slides with them.

5. The height-adjustable shoe according to claim 3, characterized in that: The middle part of the pawl is rotatably connected to the adjustment base through the second rotating shaft. The lower end of the pawl forms a latching tooth, and the upper end is located in the give way groove. A sliding channel is provided in the adjustment base along the length of the shoe. The front end of the sliding channel extends to communicate with the give way groove, and the rear end extends to the rear end surface of the adjustment base. A push rod is provided for sliding in the sliding channel. The length of the push rod is greater than the length of the sliding channel. The push rod slides forward to push the upper end of the pawl to rotate forward and disengage the latching tooth from the tooth groove. The push rod and the sliding channel form the unlocking structure.

6. The height-adjustable shoe according to claim 5, characterized in that: The adjusting bottom is provided with a mounting groove connected to the sliding channel. The elastic member is a spring. The spring is located in the mounting groove and is sleeved on the push rod. The two ends of the spring are respectively connected to the push rod and the adjusting bottom. The upper end of the pawl is penetrated by a vertically extending waist-shaped hole along the width direction of the shoe. A transmission rod adapted to the width of the waist-shaped hole is movably provided in the waist-shaped hole. The front end of the push rod is fixedly connected to the transmission rod. The elastic force of the spring acts on the pawl through the push rod and the transmission rod.

7. The height-adjustable shoe according to claim 6, characterized in that: A pressing groove is provided on the rear end surface of the adjusting sole, which is connected to the sliding channel along the length direction of the shoe. A pressing head matching the pressing groove is connected to the rear end of the push rod. The pressing head is located in the pressing groove and slides together. When the pressing head slides forward until it abuts against the bottom surface of the pressing groove, it corresponds to the unlocked state.

8. The height-adjustable shoe according to claim 6, characterized in that: A limiting groove is provided on the rear wall of the give way groove, which is connected to the sliding channel along the length direction of the shoe. The front end of the push rod is connected to the limiting head, the rear end of the limiting head is located in the limiting groove and slides together, and the front end of the limiting head is connected to the transmission rod. When the limiting head slides backward until it abuts against the bottom surface of the limiting groove, it corresponds to a locked state.

9. The height-adjustable shoe according to claim 1, characterized in that: An elastic adjusting piece is provided on the supporting bottom in front of the adjusting bottom. The thickness direction of the elastic adjusting piece is consistent with that of the supporting bottom. One end of the front or rear of the elastic adjusting piece is fixed at the position of the supporting bottom and serves as a fixed end, and the other end serves as a movable end. An adjusting mechanism is connected between the movable end and the front end of the adjusting bottom. When the adjusting bottom rotates and rises, the adjusting mechanism drives the movable end to move toward the fixed end, causing the elastic adjusting piece to undergo elastic deformation and arch upward.

10. The height-adjustable shoe according to claim 9, characterized in that: A accommodating groove is provided on the supporting bottom in front of the adjusting bottom, and limiting holes are respectively provided on the front and rear side walls of the accommodating groove. The elastic adjusting piece is movably arranged in the accommodating groove, and the front and rear ends of the elastic adjusting piece are respectively raised to form limiting protrusions corresponding to the limiting holes. The limiting protrusions are located in the corresponding limiting holes and slide together; a traction channel extending to the front end of the adjusting bottom is provided on the rear side wall of the accommodating groove, and a cable is slidably provided in the traction channel. The front end of the elastic adjusting piece serves as the movable end and is connected to the front end of the cable, and the rear end of the cable is connected to the front end of the adjusting bottom. When the adjusting bottom is rotated and raised, the cable moves backward and pulls the movable end toward the fixed end. The cable and the traction channel form the adjustment mechanism.

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