Support frame for electric multidirectional gear-shifting shoes

Abstract

The invention relates to the technical field of shoe supporting frames, in particular to an electric multi-directional gear-shifting shoe supporting frame which comprises a hollow shoe body, a sole shoe tree shell and a heel shoe tree shell, the sole shoe tree shell is formed by combining two half shells and is arranged at the front end of the hollow shoe body in a sliding mode, and the heel shoe tree shell is rotationally installed at the tail of the hollow shoe body. The electric multidirectional gear-shifting shoe supporting frame further comprises an instep shoe tree shell which is movably arranged at the instep position of the hollow shoe body, the length, width and height of the electric multidirectional gear-shifting shoe supporting frame can be conveniently expanded through the arranged multidirectional electric expanding component, so that the requirement of the shoe for adjusting in multiple directions is met more flexibly, and the shoe supporting frame is more convenient to use. The use requirement and the use experience of the user are effectively met; besides, when the multidirectional electric expanding and supporting component is designed, two expanding and supporting modes can be provided by switching gears on the premise of one set of structural design through the unique design of the double-form expanding and supporting component, and the structure is ingenious and practical.

Description

Technical Field

[0001] This invention relates to the field of shoe support technology, specifically an electrically powered, multi-directional, shiftable shoe support. Background Technology

[0002] In recent years, with the development of technology, especially the widespread application of electric drive and intelligent control technology, new ideas have been provided for footwear design. By introducing electric drive and intelligent control systems, real-time adjustment of shoe size and shape can be achieved to adapt to the needs and changes of different users. However, most electric adjustable footwear products on the market can only achieve size adjustment in one direction, such as shoe length or shoe width, and cannot take into account the adjustment of shoe size in multiple directions, thus limiting their application scope and user experience.

[0003] Therefore, it is necessary to develop a new type of electric multi-directional shiftable shoe support to meet the different needs of different users. To this end, we propose an electric multi-directional shiftable shoe support. Summary of the Invention

[0004] One of the technical problems to be solved by this application is to develop a new type of electrically powered multi-directional shiftable shoe support to meet the usage needs of different users under different requirements.

[0005] To address the aforementioned technical problems, this application provides an electrically powered, multi-directional, shiftable shoe support frame, comprising a hollow shoe body, a foot last shell, and a heel last shell. The foot last shell is composed of two half-shells and is slidably disposed at the front end of the hollow shoe body. The heel last shell is rotatably mounted at the rear end of the hollow shoe body. The support frame also includes...

[0006] The instep last shell is movably positioned at the instep position of the hollow shoe body;

[0007] A multi-directional electric expansion component is installed inside the hollow shoe body and is simultaneously connected to the heel last shell, the forefoot last shell, and the instep last shell to provide expansion for the corresponding last shells.

[0008] In some embodiments, the multi-directional electric expansion component includes a dual-form expansion component, which is disposed at the front end of the hollow shoe body and is always connected to either the foot last shell or the instep last shell, so as to respectively set the lateral widening of the two half shells of the foot last shell and the expansion of the shoe body height of the instep last shell;

[0009] An extension component is located at the rear end of the hollow shoe body and connects with the heel last shell to drive the heel last shell to extend the length of the shoe body;

[0010] The electric drive unit is electrically connected to both the dual-mode expansion component and the electric extension component to control the start and stop of the dual-mode expansion component and the extension component respectively.

[0011] In some embodiments, the dual-form expansion component includes a screw rod rotatably mounted at the front end of the hollow shoe body, a trapezoidal top block threaded onto the screw rod, and inclined guide grooves that cooperate with the trapezoidal top block are provided on the inner sides of the two half shells of the foot last shell. Rotating the screw rod drives the trapezoidal top block to move, so that the trapezoidal top block pushes the inclined guide groove to drive the foot last shell to expand.

[0012] A second screw is rotatably installed on the outside of the first screw, and a wedge-shaped top block is threaded onto the second screw. An inclined guide groove 2 that mates with the wedge-shaped top block is provided on the inner side of the foot last shell. When the second screw rotates, it pushes the foot last shell to expand.

[0013] In some embodiments, the elongation component includes a screw three rotatably mounted on the rear of the hollow shoe body, a wedge-shaped top block two threadedly mounted on the screw three, and an inclined guide groove three that cooperates with the wedge-shaped top block two provided on the inner side of the heel last shell. When the screw three rotates, it drives the heel last shell to expand.

[0014] In some embodiments, the electric drive unit includes a drive motor for controlling the expansion of the heel last shell and a dual drive unit for controlling the expansion of the instep last shell and the forefoot last shell respectively. The drive motor is powered by a built-in power supply and is fixed inside the hollow shoe body, and its drive shaft is fixedly connected to a screw.

[0015] In some embodiments, the dual-drive unit includes a through-shaft linear stepper motor fixed inside the hollow shoe body, the through-shaft linear stepper motor being powered by a built-in power supply;

[0016] A toothed groove is provided at the end of the screw near the through-shaft linear stepper motor, and a cavity with an inner diameter larger than the inner diameter of the toothed groove and communicating with the toothed groove is also provided inside the screw. A moving rod slides through the drive shaft of the through-shaft linear stepper motor, the moving rod passes through the toothed groove and the cavity, and a gear is provided on the moving rod that meshes with the toothed groove.

[0017] A second gear is also fixed on the moving rod. The outer diameter of the second gear is larger than that of the first gear, and a second tooth groove is provided at the end of the second screw. The moving rod passes through the second tooth groove.

[0018] A pusher is also provided inside the hollow shoe body. Moving the pusher causes the moving rod to move, thereby switching the engagement of gear one and gear two with tooth groove one and tooth groove two, respectively.

[0019] In some embodiments, the cavity is located on the side of the tooth groove away from the through-shaft linear stepper motor, and the gear is located on the side of the gear one closer to the through-shaft linear stepper motor.

[0020] The actuating component includes a push rod that is slidably mounted on the hollow shoe body. The push rod is located on the side of gear one away from the cavity, and its bottom end contacts the moving rod. The bottom end of the push rod is chamfered. When the push rod is pressed down, it actuates the moving rod to move, thereby causing gear one to disengage from tooth groove one, and gear two to mesh with tooth groove two.

[0021] A compression spring is also fitted on the moving rod, with one end of the compression spring abutting against the moving rod and the other end of the compression spring rotatably abutting against the inner wall of the cavity.

[0022] The present invention has at least the following beneficial effects:

[0023] This invention differs from existing technologies by incorporating multi-directional electric expansion components, enabling the shoe support frame to be easily expanded in length, width, and height. This allows for more flexible adjustment of shoes in multiple directions, effectively meeting user needs and enhancing user experience.

[0024] Furthermore, in designing the multi-directional electric expansion component, the unique dual-mode expansion component design allows for two expansion modes to be provided by switching gears, provided that a single structural design is used. The structure is ingenious and practical. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of partial cross-section of planar structure;

[0027] Figure 3 This is a schematic diagram of the foot last shell structure of the present invention;

[0028] Figure 4 For the present invention Figure 1 Schematic diagram of the midfoot last shell and hollow shell after half-section;

[0029] Figure 5 For the present invention Figure 2 Schematic diagram of the structure of screw 1, screw 2 and wedge-shaped top block 1 after partial section;

[0030] Figure 6 For the present invention Figure 5 Enlarged structural diagram of area A in the middle;

[0031] Figure 7 This is a schematic diagram of the structure of screw one and screw two of the present invention.

[0032] In the diagram: 1. Hollow shoe body; 2. Foot last shell; 3. Heel last shell; 4. Instep last shell; 5. Multi-directional electric expansion component; 51. Dual-form expansion component; 511. Screw 1; 512. Trapezoidal top block 1; 513. Inclined guide rail groove 1; 514. Screw 2; 515. Wedge-shaped top block 1; 516. Inclined guide rail groove 2; 52. Extension component; 521. Screw 3; 522, Wedge-shaped top block 2; 523, Inclined guide rail groove 3; 53, Electric drive unit; 531, Drive motor; 532, Dual drive unit; 533, Through-shaft linear stepper motor; 534, Gear groove 1; 535, Cavity; 536, Moving rod; 537, Gear 1; 538, Gear 2; 539, Gear groove 2; 54, Pushing element; 541, Push rod; 542, Compression spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-4 This invention provides a technical solution: an electrically powered multi-directional shiftable shoe support frame, which provides users with an unprecedented personalized wearing experience. This support frame mainly includes a hollow shoe body 1, a foot last shell 2, a heel last shell 3, and an instep last shell 4. The foot last shell 2 is carefully composed of two half-shells that can be flexibly slidably positioned at the front end of the hollow shoe body 1, ensuring the comfort and adaptability of the shoe. The heel last shell 3 is cleverly rotated and installed at the rear of the hollow shoe body 1, providing users with a more fitting support.

[0035] The instep last shell 4 is movably positioned at the instep position of the hollow shoe body 1, allowing for fine-tuning according to the user's foot shape, making the shoe fit the foot better and reducing discomfort from rubbing. The multi-directional electric expansion component 5 is the core of this support frame. It is hidden inside the hollow shoe body 1 and achieves multi-directional expansion function of the corresponding shoe last shell through precise connection with the heel last shell 3, the forefoot last shell 2, and the instep last shell 4.

[0036] The dual-mode expansion component 51 in the multi-directional electric expansion component 5 is located at the front end of the hollow shoe body 1. It has two expansion modes. By rotating the screw 511 installed at the front end of the hollow shoe body 1, the trapezoidal top block 512 will move along the thread of the screw 511. On the inner side of the two half shells of the foot last shell 2, there is an inclined guide groove 513 that cooperates with the trapezoidal top block 512. When the trapezoidal top block 512 moves, it will push the inclined guide groove 513, thereby driving the foot last shell 2 to expand laterally to adapt to different foot widths.

[0037] Meanwhile, a second screw 514 is rotatably installed on the outside of the first screw 511. A wedge-shaped top block 515 is threaded onto the second screw 514. An inclined guide groove 516 that cooperates with the wedge-shaped top block 515 is provided on the inside of the foot last shell 4. When the second screw 514 rotates, the wedge-shaped top block 515 will push the foot last shell 4 to expand it, thereby adjusting the height of the shoe body to meet the wearing needs of different users.

[0038] The extension component 52 is located at the rear end of the hollow shoe body 1 and is tightly connected to the heel last shell 3. By rotating the screw 3 521 installed at the rear of the hollow shoe body 1, the wedge-shaped top block 2 522 will move along the thread of the screw 3 521. On the inner side of the heel last shell 3, there is an inclined guide groove 3 523 that cooperates with the wedge-shaped top block 2 522. When the screw 3 521 rotates, the wedge-shaped top block 2 522 will push the heel last shell 3 to expand it, thereby adjusting the length of the shoe body and ensuring a perfect fit between the shoe and the user's foot.

[0039] The electric drive unit 53 serves as the power source for the entire system and is electrically connected to the dual-form expansion component 51 and the extension component 52. It includes a drive motor 531 for controlling the expansion of the heel last shell 3 and a dual drive unit 532 for controlling the expansion of the instep last shell 4 and the foot last shell 2 respectively. The drive motor 531 is powered by a built-in power supply and is fixed inside the hollow shoe body 1. Its drive shaft is tightly fixedly connected to the screw 3 521 to ensure the stable operation of the extension component 52.

[0040] The dual-drive unit 532 includes a through-shaft linear stepper motor 533 fixed inside the hollow shoe body 1. It is also powered by a built-in power supply. A toothed groove 534 is carefully opened at the end of the screw 511 near the through-shaft linear stepper motor 533. A cavity 535 with an inner diameter larger than the inner diameter of the toothed groove 534 is also opened inside the screw 511. A moving rod 536 slides through the drive shaft of the through-shaft linear stepper motor 533. It passes through the toothed groove 534 and the cavity 535. A gear 537 that meshes with the toothed groove 534 is installed on the moving rod 536.

[0041] Meanwhile, a gear 2 538 with an outer diameter larger than gear 1 537 is fixed on the moving rod 536. At the end of screw 2 514, a tooth groove 2 539 that mates with gear 2 538 is also provided. The moving rod 536 passes through it. In order to switch the meshing state of gear 1 537 and gear 2 538 with tooth groove 1 534 and tooth groove 2 539, a pusher 54 is also provided inside the hollow shoe body 1.

[0042] Cavity 535 is located on the side of tooth groove 534 away from the through shaft linear stepper motor 533, and gear 2 538 is located on the side of gear 537 close to the through shaft linear stepper motor 533.

[0043] The actuating member 54 includes a push rod 541 slidably mounted on the hollow shoe body 1. The push rod 541 is located on the side of gear 1 537 away from the cavity 535, and its bottom end contacts the moving rod 536. The bottom end of the push rod 541 is chamfered. When the push rod 541 is pressed down, it actuates the moving rod 536 to move, thereby driving gear 1 537 to disengage from tooth groove 1 534, and gear 2 538 to mesh with tooth groove 2 539. A compression spring 542 is also sleeved on the moving rod 536. One end of the compression spring 542 abuts against the moving rod 536, and the other end of the compression spring 542 rotates against the inner wall of the cavity 535.

[0044] First, the cavity 535 is designed not only to accommodate the moving rod 536 and the compression spring 542, but more importantly, it serves as a buffer area between the gear 537 and the moving rod 536. When the moving rod 536 moves under the action of the pusher 54, the cavity 535 allows the gear 537 enough space to move, ensuring smooth disengagement from the tooth groove 534. At the same time, the existence of the cavity 535 also ensures that the moving rod 536 can quickly reset under the action of the compression spring 542, so that the gear 537 can re-engage with the tooth groove 534.

[0045] The design of gear 2 538 fully considers the switching requirements between it and gear 1 537. Since the outer diameter of gear 2 538 is larger than that of gear 1 537, gear 2 538 can more easily mesh with tooth groove 2 539 during the movement of moving rod 536. This design not only improves the reliability of switching, but also makes the operation smoother.

[0046] As a key component for switching gears, the push rod 54 has been carefully designed. The chamfered treatment of the push rod 541 makes it easier to push the moving rod 536 during the pressing process, thereby ensuring that the gear 537 disengages smoothly from the tooth groove 534. At the same time, the sliding installation design of the push rod 541 allows users to operate it easily without the need for additional tools or complicated steps.

[0047] The introduction of the compression spring 542 provides the system with an automatic reset function. When the push rod 541 is released, the elastic force of the compression spring 542 will quickly push the moving rod 536 to reset, so that the gear 537 will mesh with the tooth groove 534 again. This design not only improves the reliability of the system, but also makes it more convenient and faster for users to use.

[0048] In addition, to further improve the stability and reliability of the system, some auxiliary components can be set inside the hollow shoe body 1. For example, a guide groove or guide block can be set on the sliding path of the moving rod 536 to ensure the stability and accuracy of the moving rod 536 during the movement. At the same time, a limit block or limit groove can be set on the sliding path of the top rod 541 to prevent the top rod 541 from moving excessively or deviating from the track during operation. This does not involve the core protection content of this application, so it is not shown or described in detail in the figure.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrically operated multi-directional shiftable shoe support frame, comprising a hollow shoe body (1), a foot last shell (2), and a heel last shell (3), wherein the foot last shell (2) is composed of two half-shells and is slidably disposed at the front end of the hollow shoe body (1), and the heel last shell (3) is rotatably mounted at the rear end of the hollow shoe body (1), characterized in that: It also includes The foot last shell (4) is movably set at the foot position of the hollow shoe body (1); A multi-directional electric expansion component (5) is installed inside the hollow shoe body (1) and is simultaneously connected to the heel last shell (3), the forefoot last shell (2) and the instep last shell (4) to provide expansion for the corresponding last shells.

2. The electrically operated multi-directional shiftable shoe support frame according to claim 1, characterized in that: The multi-directional electric expansion component (5) includes a dual-form expansion component (51), which is located at the front end of the hollow shoe body (1) and is always connected to either the foot last shell (2) or the instep last shell (4) to respectively set the lateral widening of the two half shells of the foot last shell (2) and the expansion of the height of the shoe body by the instep last shell (4); An extension component (52) is provided at the end of the hollow shoe body (1) and is connected and cooperated with the heel last shell (3) to drive the heel last shell (3) to extend the length of the shoe body; The electric drive unit (53) is electrically connected to both the dual-mode expansion component (51) and the electric extension component (52) to control the start and stop of the dual-mode expansion component (51) and the extension component (52) respectively.

3. The electrically operated multi-directional shiftable shoe support frame according to claim 2, characterized in that: The dual-form expansion component (51) includes a screw (511) rotatably mounted at the front end of the hollow shoe body (1), a trapezoidal top block (512) threaded onto the screw (511), and inclined guide grooves (513) that cooperate with the trapezoidal top block (512) are provided on the inner sides of the two half shells of the foot last shell (2). Rotating the screw (511) drives the trapezoidal top block (512) to move, so that the trapezoidal top block (512) pushes the inclined guide groove (513) to drive the foot last shell (2) to expand. A second screw (514) is rotatably installed on the outside of the first screw (511). A wedge-shaped top block (515) is threaded onto the second screw (514). An inclined guide groove (516) that cooperates with the wedge-shaped top block (515) is provided on the inner side of the foot last shell (4). When the second screw (514) rotates, it pushes the foot last shell (4) to expand.

4. The electrically operated multi-directional shiftable shoe support frame according to claim 3, characterized in that: The extension component (52) includes a screw three (521) rotatably mounted on the tail of the hollow shoe body (1), a wedge-shaped top block two (522) threaded on the screw three (521), and an inclined guide groove three (523) that cooperates with the wedge-shaped top block two (522) is provided on the inner side of the heel last shell (3). When the screw three (521) rotates, it drives the heel last shell (3) to expand.

5. The electrically operated multi-directional shiftable shoe support frame according to claim 4, characterized in that: The electric drive unit (53) includes a drive motor (531) for controlling the expansion of the heel last shell (3) and a dual drive unit (532) for controlling the expansion of the instep last shell (4) and the foot last shell (2) respectively. The drive motor (531) is powered by a built-in power supply and is fixed inside the hollow shoe body (1), and its drive shaft is fixedly connected to the screw three (521).

6. The electrically operated multi-directional shiftable shoe support frame according to claim 5, characterized in that: The dual-drive unit (532) includes a through-shaft linear stepper motor (533) fixed inside the hollow shoe body (1), and the through-shaft linear stepper motor (533) is powered by a built-in power supply. A toothed groove (534) is provided at the end of the screw (511) near the through-shaft linear stepper motor (533), and a cavity (535) with an inner diameter larger than the inner diameter of the toothed groove (534) and communicating with the toothed groove (534) is also provided inside the screw (511). A moving rod (536) slides through the drive shaft of the through-shaft linear stepper motor (533), the moving rod (536) passes through the toothed groove (534) and the cavity (535), and a gear (537) that meshes with the toothed groove (534) is provided on the moving rod (536). A second gear (538) is also fixed on the moving rod (536). The outer diameter of the second gear (538) is larger than that of the first gear (537), and a tooth groove (539) is provided at the end of the screw (514). The moving rod (536) passes through the tooth groove (539). A pusher (54) is also provided inside the hollow shoe body (1). The pusher (54) is moved to move the moving rod (536) so as to switch the engagement of gear one (537) and gear two (538) with tooth groove one (534) and tooth groove two (539) respectively.

7. The electrically operated multi-directional shiftable shoe support frame according to claim 6, characterized in that: The cavity (535) is located on the side of the tooth groove (534) away from the through-shaft linear stepper motor (533), and the gear two (538) is located on the side of the gear one (537) close to the through-shaft linear stepper motor (533). The actuating member (54) includes a push rod (541) slidably mounted on the hollow shoe body (1). The push rod (541) is located on the side of gear one (537) away from the cavity (535), and its bottom end is in contact with the moving rod (536). The bottom end of the push rod (541) is chamfered. When the push rod (541) is pressed down, the moving rod (536) is actuated to move, so as to drive gear one (537) to disengage from tooth groove one (534), and gear two (538) to mesh with tooth groove two (539). A compression spring (542) is also fitted on the moving rod (536), one end of which abuts against the moving rod (536), and the other end of which rotates against the inner wall of the cavity (535).

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