Supporting frame for gear-shifting shoes

Abstract

The utility model relates to the technical field of supporting frames for shift shoes, in particular to a supporting frame for shift shoes, which comprises a hollow shoe body, a sole shoe tree shell and a heel shoe tree shell, and further comprises a sole expanding part which is arranged at the front end of the hollow shoe body, extends into the sole shoe tree shell and is used for driving the sole shoe tree shell to expand. Compared with the prior art, the supporting frame for the gear-shifting shoe has the advantages that the sole and the heel can be expanded through a set of driving system, under the first gear, the multi-gear driving component is connected with the heel expanding component, and the heel part can be driven to be expanded by rotating the first screw rod; after the second gear is switched, the multi-gear driving component is connected with the sole expanding component, expanding of the sole part is achieved by rotating the second screw, the operation process is simplified through the design, and the expanding accuracy and efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a support frame for shiftable shoes, in particular to a support frame for shiftable shoes. Background Art

[0002] The switchable shoe support frame, also known as the shoe last, plays a vital role in ensuring the shape, size and comfort of the shoe. However, the traditional switchable shoe support frame usually has certain limitations in design, especially when it comes to multi-directional expansion. Traditional switchable shoe support frames often need to rely on multiple independent structures to achieve the width expansion of the sole and the length expansion of the front and back of the shoe, which not only increases the complexity of the design, but also increases the production cost.

[0003] More importantly, when using a traditional shiftable shoe support frame, the operator needs to control two independent drive systems separately to complete the expansion action, which undoubtedly increases the difficulty and tediousness of the operation, and is very likely to affect the shaping effect of the shoe due to improper operation. For this reason, we propose a shiftable shoe support frame. Utility Model Content

[0004] One of the technical problems to be solved by this application is: how to design a drive system integrated with a support frame for shiftable shoes that can simultaneously control the expansion of the width of the sole and the length of the shoe; secondly, its structural design should be as simple and light as possible to facilitate carrying and use; finally, it should be able to provide precise and stable expansion effects to ensure the quality and comfort of the shoes.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a support frame for a shiftable shoe, comprising a hollow shoe body, a sole shoe last shell and a heel shoe last shell, and also comprising:

[0006] A sole expansion component is arranged at the front end of the hollow shoe body and extends into the sole shoe last shell to drive the sole shoe last shell to expand;

[0007] A heel expansion component is arranged at the rear end of the hollow shoe body and extends into the heel shoe last shell to drive the heel shoe last shell to expand;

[0008] The multi-speed driving component is also arranged in the rear end of the hollow shoe body. In the first gear, the multi-speed driving component is connected to the heel expansion component to drive the heel expansion. After switching to the second gear, the multi-speed driving component is connected to the sole expansion component to drive the sole expansion.

[0009] In some embodiments, the sole last shell is composed of two half shells rotatably mounted on a hollow shoe body, the sole expansion component is located between the two half shells, and the heel last shell is a hollow open shell corresponding to the shape of the heel, with its opening facing the hollow shoe body, and its top is rotatably connected to the hollow shoe body.

[0010] In some embodiments, the sole expansion and support component includes wedge-shaped stoppers 1 respectively arranged in the half shells, a push rod extending into the sole shoe last shell is slidably arranged in the hollow shoe body, one end of the push rod located in the hollow shoe body can cooperate with the multi-speed driving component, and one end of the push rod located in the sole shoe last shell is provided with a wedge-shaped push block 1 that fits the wedge-shaped stoppers 1;

[0011] A spring is arranged between the two half shells. When the two half shells are fitted together, the spring is in a normal state, and when the wedge-shaped top block pushes the wedge-shaped stopper to drive the two half shells to expand, the spring is forced to contract.

[0012] In some embodiments, the heel expansion component includes a wedge-shaped stopper 2 installed in the heel last shell, and a wedge-shaped top block 2 that fits with the wedge-shaped stopper 2 is also provided in the hollow shoe body. The wedge-shaped top block 2 can cooperate with a multi-speed driving component to drive the wedge-shaped top block 2 to move so as to expand the heel.

[0013] In some embodiments, the multi-speed driving component includes a screw rod 1 rotatably mounted in the hollow shoe body, the screw rod 1 threadedly penetrates the wedge-shaped top block 2, and the screw rod 1 is configured to rotate to drive the wedge-shaped top block 2 to move;

[0014] A second screw rod concentric with the screw rod is threadedly installed in the hollow shoe body, and a conical top block is arranged at one end of the second screw rod and the top rod, and the wedge-shaped surfaces of the two conical top blocks fit each other;

[0015] A driving rod is movably arranged in the hollow shoe body. The driving rod is a polygonal rod structure, and polygonal buckle grooves are provided on the screw rod one and the screw rod two. The driving rod is buckled with the screw rod one and the screw rod two to drive the screw rod one and the screw rod two respectively.

[0016] In some embodiments, the polygonal buckle grooves are respectively located at the ends close to screw one and screw two, and the driving rod is composed of a combination of a cylindrical section and a polygonal section. The cylindrical section slides through screw one and extends its end away from screw two to the outside of the hollow shoe body, and the polygonal section is fixed at the end of the cylindrical section close to screw two. When the cylindrical section is moved, the polygonal section can be switched in the polygonal buckle grooves of screw one and screw two.

[0017] In some embodiments, the end of the driving rod located outside the hollow shoe body is hook-shaped.

[0018] The utility model has at least the following beneficial effects:

[0019] Different from the existing technology, the expansion and support of the sole and heel can be achieved through a set of driving system. In the first gear, the multi-speed driving component is connected to the heel expansion and support component, and the heel part can be driven to expand by rotating the screw one; after switching to the second gear, the multi-speed driving component is connected to the sole expansion and support component, and the expansion of the sole part is achieved by rotating the screw two. This design not only simplifies the operation process, but also greatly improves the accuracy and efficiency of the expansion and support, so that the device can not only meet the multi-directional expansion and support needs of the shoes, but also provide users with a more comfortable and fitting shoe wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the hollow shoe body, the sole shoe last shell, and the heel shoe last shell after half-sectioning;

[0022] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the hollow shoe body after half-section;

[0023] Figure 4 For this utility model Figure 2 Another structural diagram;

[0024] Figure 5 This is a schematic diagram of the structure of the sole expansion and support component of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the multi-gear drive component of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the driving rod of the utility model.

[0027] In the figure: 1, hollow shoe body; 2, sole shoe last shell; 3, heel shoe last shell; 4, sole expansion component; 5, heel expansion component; 6, multi-speed driving component; 21, half shell; 41, wedge block 1; 42, push rod; 43, wedge top block 1; 44, spring; 51, wedge block 2; 52, wedge top block 2; 61, screw 1; 62, screw 2; 63, conical top block; 64, driving rod; 65, polygonal buckle groove; 641, cylindrical section; 642, polygonal section. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] See also Figure 1-7 The utility model provides a technical solution: a shiftable shoe support frame, the main structure of which includes a hollow shoe body 1, a sole shoe last shell 2 and a heel shoe last shell 3. The uniqueness of this shiftable shoe support frame lies in its well-designed sole expansion component 4, heel expansion component 5, and a flexible and changeable multi-speed driving component 6.

[0031] The sole expansion component 4 is cleverly arranged at the front end of the hollow shoe body 1, deep inside the sole shoe last shell 2. This design enables the sole expansion component 4 to effectively drive the sole shoe last shell 2 to expand to accommodate soles of different sizes. The sole shoe last shell 2 is composed of two half shells 21, and the two half shells 21 can rotate freely around the hollow shoe body 1. The sole expansion component 4 is precisely located between the two half shells 21, and through its expansion action, the two half shells 21 can flexibly adjust the angle and position as needed.

[0032] The heel expansion component 5 is located at the rear end of the hollow shoe body 1 and extends deep into the heel shoe last shell 3. The main function of this component is to push the heel shoe last shell 3 to expand and support to ensure the comfort and fit of the heel part of the shoe. The heel shoe last shell 3 is a hollow open shell that perfectly matches the shape of the heel, and its opening faces the hollow shoe body 1, which is convenient for wearing and taking off. At the same time, the top of the shell is connected to the hollow shoe body 1 through a sophisticated rotation connection, so that the heel shoe last shell 3 can rotate freely within a certain range to better adapt to heels of different shapes.

[0033] In addition to the above two expansion components, this switchable shoe support frame is also equipped with a unique multi-gear driving component 6. This component is also located at the rear end of the hollow shoe body 1 and is the key to achieving expansion of the sole and heel. In the first gear, the multi-gear driving component 6 is closely connected with the heel expansion component 5, and drives the expansion of the heel through a precise transmission mechanism. When it is necessary to switch to the sole expansion, it is only necessary to simply adjust the gear of the multi-gear driving component 6 to connect it with the sole expansion component 4, thereby easily driving the expansion of the sole.

[0034] The detailed structure of the sole expansion component 4 shows a high level of design ingenuity. Wedge-shaped blocks 41 are respectively arranged in the two half shells 21, which play a key guiding and positioning role in the expansion process. At the same time, there is a freely sliding push rod 42 inside the hollow shoe body 1, and this push rod 42 extends all the way into the sole shoe last shell 2. The end of the push rod 42 located inside the hollow shoe body 1 can perfectly cooperate with the multi-gear driving component 6 to achieve smooth power transmission. And the end of the push rod 42 located inside the sole shoe last shell 2 is equipped with a wedge-shaped push block 43 that fits with the wedge-shaped block 41. This design enables the push rod 42 to accurately push the wedge-shaped block 41 when it is driven, thereby driving the two half shells 21 to expand.

[0035] A spring 44 is cleverly arranged between the two half shells 21. When the two half shells 21 are in a close fit, the spring 44 is in a normal state without any deformation. However, when the wedge-shaped top block 43 pushes the wedge-shaped stopper 41 to expand, the spring 44 is compressed, thereby generating a certain rebound force. This design not only ensures the smooth expansion process, but also improves the durability and stability of the support frame for the shiftable shoe to a certain extent.

[0036] The design of the heel expansion and support component 5 is also ingenious. It mainly includes a wedge-shaped stopper 2 51 installed in the heel shoe last shell 3 and a wedge-shaped top block 2 52 arranged inside the hollow shoe body 1 and matched with the wedge-shaped stopper 2 51. The wedge-shaped top block 2 52 can be closely matched with the multi-speed driving component 6. Through the precise driving of the multi-speed driving component 6, the wedge-shaped top block 2 52 can move smoothly inside the hollow shoe body 1, thereby realizing flexible expansion and support of the heel.

[0037] The multi-gear driving component 6 is the power core of the entire shiftable shoe support frame, and its design is ingenious. It is mainly composed of a screw rod 61 rotatably installed inside the hollow shoe body 1, and this screw rod 61 penetrates the wedge-shaped top block 2 52 in a threaded manner. By rotating the screw rod 61, the wedge-shaped top block 2 52 can be accurately driven to move, thereby achieving precise control of the heel expansion. In addition, a screw rod 62 concentric with the screw rod 61 is also installed in the hollow shoe body 1 in a threaded manner. The end of this screw rod 62 close to the top rod 42 is provided with a conical top block 63, and the wedge-shaped surfaces of the two conical top blocks 63 are in contact with each other. This design enables the screw rod 2 62 to accurately push the top rod 42 to move when rotating, thereby achieving precise control of the sole expansion.

[0038] It is also worth mentioning that a movable driving rod 64 is also provided inside the hollow shoe body 1. The driving rod 64 adopts a polygonal rod structure design and has extremely high strength and stability. At the same time, a polygonal buckle groove 65 is provided on both the screw rod 1 61 and the screw rod 2 62. Through the precise buckling of the driving rod 64 with the screw rod 1 61 and the screw rod 2 62, the two screw rods can be flexibly driven respectively. The polygonal buckle groove 65 is located at the end close to the screw rod 1 61 and the screw rod 2 62 respectively. This design enables the driving rod 64 to buckle with the two screw rods at different positions, thereby achieving different expansion and support actions.

[0039] The driving rod 64 is cleverly composed of a cylindrical section 641 and a polygonal section 642. The cylindrical section 641 slides through the screw rod 1 61 and extends its end away from the screw rod 2 62 to the outside of the hollow shoe body 1. The polygonal section 642 is fixed to the end of the cylindrical section 641 close to the screw rod 2 62. By flexibly moving the cylindrical section 641, the polygonal section 642 can be freely switched between the polygonal buckle grooves 65 of the screw rod 1 61 and the screw rod 2 62, thereby realizing a flexible conversion between the sole expansion support and the heel expansion support. For easy operation, the end of the driving rod 64 located outside the hollow shoe body 1 is designed to be hook-shaped, so that the user can easily hold and operate this shiftable shoe support frame.

[0040] Example 2

[0041] In one embodiment, the material of the switchable shoe support frame is a light alloy, which not only ensures the strength of the switchable shoe support frame, but also makes the switchable shoe support frame lighter as a whole. For the inner side of the sole shoe last shell 2 and the heel shoe last shell 3, we selected a soft rubber material and added anti-skid texture to ensure that the shoe can fit the user's foot closely after expansion and provide excellent anti-skid performance.

[0042] In addition, in order to meet the needs of different users, we also designed an adjustable sole expansion component 4. The wedge-shaped top block 43 of this component is detachable, and the user can choose a suitable wedge-shaped top block 43 for replacement according to the width of his sole. At the same time, the elastic force of the spring 44 can also be adjusted as needed to ensure the comfort and stability of the expansion.

[0043] In terms of driving mode, we introduced an electric driving mechanism. With the built-in battery and motor, users only need to press a button to achieve automatic expansion of the sole and heel. This design not only simplifies the operation process, but also improves the efficiency and accuracy of expansion.

[0044] Example 3

[0045] In another embodiment, we focus on the portability and ease of use of the support frame for shiftable shoes. To this end, we design a foldable support frame for shiftable shoes. When not in use, the user can fold the various components of the support frame for shiftable shoes to greatly reduce its volume, making it easy to carry and store.

[0046] In the folding mechanism, we use a flexible connector and lock design. These connectors and locks can achieve quick and simple folding and unfolding operations while ensuring the stability of the structure. In addition, the surface of the switchable shoe support frame is also treated with waterproof and anti-fouling to ensure its cleanliness and durability during use.

[0047] In terms of expansion components, we introduced memory alloy materials. This material can be adaptively adjusted according to the user's foot shape and temperature, thereby providing a more fitting and comfortable expansion effect. At the same time, the memory alloy material also has good elasticity and durability, which can ensure that the support frame for shiftable shoes maintains good performance in long-term use.

[0048] In terms of driving mode, we adopt a combination of manual and electric. Users can choose manual operation or electric drive according to their needs. This design not only meets the operating habits of different users, but also provides more choices and convenience.

[0049] In general, these two embodiments, while maintaining the basic design of the support frame for shiftable shoes, further improve the comfort, portability and ease of use of the support frame for shiftable shoes through innovations in materials, structures and driving methods. Whether users who need to adjust the width of the sole of the foot or users who value portability can find a solution for the support frame for shiftable shoes that suits them in these embodiments.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support frame for shiftable shoes, comprising a hollow shoe body (1), a sole shoe last shell (2) and a heel shoe last shell (3), characterized in that: Also included are: A sole expansion component (4) is arranged at the front end of the hollow shoe body (1) and extends into the sole shoe last shell (2) to drive the sole shoe last shell (2) to expand; A heel expansion component (5) is arranged at the rear end of the hollow shoe body (1) and extends into the heel shoe last shell (3) to drive the heel shoe last shell (3) to expand; The multi-gear driving component (6) is also arranged in the rear end of the hollow shoe body (1). In the first gear, the multi-gear driving component (6) is connected to the heel expansion component (5) to drive the heel expansion. After switching to the second gear, the multi-gear driving component (6) is connected to the sole expansion component (4) to drive the sole expansion.

2. The support frame for shiftable shoes according to claim 1, characterized in that: The sole shoe last shell (2) is composed of two half shells (21) rotatably mounted on the hollow shoe body (1), the sole expansion component (4) is located between the two half shells (21), and the heel shoe last shell (3) is a hollow open shell corresponding to the shape of the heel, its opening faces the hollow shoe body (1), and its top is rotatably connected to the hollow shoe body (1).

3. The support frame for shiftable shoes according to claim 2, characterized in that: The sole expansion and support component (4) includes a wedge-shaped stopper (41) respectively arranged in the half shell (21), and a push rod (42) extending into the sole shoe last shell (2) is slidably arranged in the hollow shoe body (1), and one end of the push rod (42) located in the hollow shoe body (1) can cooperate with the multi-speed driving component (6), and one end of the push rod (42) located in the sole shoe last shell (2) is provided with a wedge-shaped push block (43) that fits the wedge-shaped stopper (41); A spring (44) is arranged between the two half shells (21). When the two half shells (21) are fitted together, the spring (44) is in a normal state. When the wedge-shaped top block (43) pushes the wedge-shaped stop block (41) to drive the two half shells (21) to expand, the spring (44) is forced to contract.

4. The support frame for shiftable shoes according to claim 3, characterized in that: The heel expansion and support component (5) comprises a wedge-shaped stopper block 2 (51) installed in the heel shoe last shell (3), and a wedge-shaped top block 2 (52) is also arranged in the hollow shoe body (1) to fit the wedge-shaped stopper block 2 (51). The wedge-shaped top block 2 (52) can cooperate with the multi-speed driving component (6) to drive the wedge-shaped top block 2 (52) to move so as to expand the heel.

5. The support frame for shiftable shoes according to claim 4, characterized in that: The multi-speed driving component (6) comprises a screw rod (61) rotatably mounted in the hollow shoe body (1), wherein the screw rod (61) is threadedly penetrated through the wedge-shaped top block (52), and the screw rod (61) is configured to rotate to drive the wedge-shaped top block (52) to move; A second screw rod (62) concentric with the first screw rod (61) is threadedly installed in the hollow shoe body (1), and a conical top block (63) is provided at one end of the second screw rod (62) and the top rod (42), and the wedge-shaped surfaces of the two conical top blocks (63) are in contact with each other; A driving rod (64) is movably arranged in the hollow shoe body (1). The driving rod (64) is a polygonal rod structure, and a polygonal buckle groove (65) is provided on the first screw rod (61) and the second screw rod (62). The driving rod (64) is buckled with the first screw rod (61) and the second screw rod (62) to drive the first screw rod (61) and the second screw rod (62) respectively.

6. The support frame for shiftable shoes according to claim 5, characterized in that: The polygonal buckle grooves (65) are respectively located at the ends of the first screw rod (61) and the second screw rod (62) that are close to each other. The driving rod (64) is composed of a cylindrical section (641) and a polygonal section (642). The cylindrical section (641) slides through the first screw rod (61) and extends its end away from the second screw rod (62) to the outside of the hollow shoe body (1). The polygonal section (642) is fixed at the end of the cylindrical section (641) that is close to the second screw rod (62). When the cylindrical section (641) is moved, the polygonal section (642) can be switched in the polygonal buckle grooves (65) of the first screw rod (61) and the second screw rod (62).

7. The support frame for shiftable shoes according to claim 6, characterized in that: One end of the driving rod (64) located outside the hollow shoe body (1) is in the shape of a hook.

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