Footwear supporting piece
By using one-piece injection-molded footwear support components, the problems of inconvenience in shaping and insufficient support in existing shoe heel support components during processing are solved, achieving high wear resistance and good guiding effect, and simplifying the processing flow.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-13
AI Technical Summary
Existing heel support components are difficult to shape during the manufacturing of finished shoes, have weak support, are not wear-resistant, and the extended tongue cannot effectively guide the foot.
The shoe support component, which is made by one-piece injection molding, includes an arc-shaped block that matches the curvature of the human heel and an inclined extension tongue. The extension tongue is less rigid than the support body. The arc-shaped block and the extension tongue are integrally molded by injection molding material. There is no need to sew an outer fabric piece on the shoe upper. The sponge strip and inner fabric piece are directly fixed on the injection molded part. The heel and the shoe upper are fixed by a connecting groove.
It achieves convenient shaping of the shoe heel, improves support and wear resistance, and the extended tongue has a good guiding function, resulting in better comfort. Moreover, it does not require shoe lasts, simplifying the processing steps.
Smart Images
Figure CN223987676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shoe heel manufacturing technology, and in particular to a shoe support component. Background Technology
[0002] The heel of a shoe provides support for the foot. Traditional shoe upper manufacturing simply involves sewing together individual pieces of fabric. The process typically involves directly stitching the heel pieces together and moving on to the next step. However, shoes made from purely sewn fabric pieces often suffer from insufficient support, sagging, and chafing in the heel area. Therefore, a support structure, typically a heel counter, is usually placed at the heel position on the upper. Nowadays, when making finished shoe uppers, the outer fabric is laid flat, and a support structure is placed at the heel area... The upper is laid flat from bottom to top, with a heel counter and a sponge piece. Then, the inner lining piece, which matches the outer fabric piece, is laid flat on top of the outer fabric piece and covers the sponge piece. When laying the heel counter, sponge piece, and inner lining piece, an adhesive film is applied and they are sewn together, so that the entire upper is a one-piece structure. Finally, the upper is put on the shoe last and fixed to the sole. The curvature of the shoe last at the heel area is used to bend the heel counter and sponge piece at the heel area of the upper into an upright arc structure.
[0003] However, this processing method involves manually applying glue, which can easily cause the glue to ooze out of the outer fabric. Once the glue dries, the shoe surface will yellow, affecting its quality. Furthermore, while the upright arc structure of the heel counter and sponge piece can conform to the human heel, it can also cause the heel to lift upwards and separate from the shoe, leading to slippage. Therefore, a one-piece heat-pressed heel counter is needed, such as the shoe support component with application number 2023222233906, which includes a heel counter, a sponge strip, and an inner fabric piece. The heel counter is an arc-shaped block that matches the curvature of the human heel. One side of the arc-shaped block is an outwardly convex arc surface, and the other side is an inwardly concave arc surface. The convex arc surface at the position of the arc-shaped block is considered the back, and the concave arc surface at the position of the arc-shaped block is considered the front. An extension tongue with an arc-shaped structure, extending obliquely upwards and backwards at the center of the top surface of the front end of the arc-shaped block, is provided. The front outer edge of the arc-shaped block is connected to the extension tongue... The outer edges of the tongue are all arc-shaped, and the front outer edge of the arc-shaped block and the outer edge of the extended tongue form a continuous convex arc. The above-mentioned sponge strip has an integrally formed arc-shaped cotton block and a bonding cotton block. The arc-shaped cotton block is bonded to the upper part of the concave arc surface of the arc-shaped block. The two ends of the arc-shaped cotton block extend forward beyond the concave arc surface of the arc-shaped block. The bonding cotton block is in close contact with the extended tongue. The arc-shaped block and the sponge strip form a heel block with a fixed shape. The inner lining fabric is bonded to the front side of the heel block. The inner lining fabric and the heel block are integrally heat-pressed together. During molding, the heel counter piece, sponge strip, and inner lining piece are placed into the concave cavity of the arc-shaped piece in sequence. Then, the molding core is inserted into the concave cavity of the arc-shaped piece for hot pressing to obtain a fixed-shape heel. When applied to the shoe upper, the heel is first placed on the shoe last, and then the molded shoe upper is placed on the shoe last so that the heel is wrapped by the molded shoe upper. Only then can the heel and shoe upper be sewn together. After sewing, the sole is fixed to the shoe upper. After fixing, the shoe last is removed from the shoe upper.
[0004] However, when fitting the heel to the pre-formed upper, the heel needs to be sewn onto the outer fabric piece of the upper located in the heel area on the shoe last. The shoe last is quite heavy, making sewing inconvenient. Furthermore, the heel uses a heel counter as support, which is typically made with hot melt adhesive. Hot melt adhesive is relatively soft, resulting in weak support and poor abrasion resistance. Additionally, the height of the pre-formed upper in the heel area is fixed; the height of the upper corresponding to the extension tongue position must match the extension tongue. This means that when the heel and upper are fitted together, the extension tongue cannot be designed to be high; it must be low to match the position of the extension tongue on the upper. Consequently, the extension tongue is too low and does not provide adequate foot guidance when putting on the shoe.
[0005] In view of this, the inventors of this case conducted in-depth research on the problem, which led to the creation of this case. Utility Model Content
[0006] The purpose of this utility model is to provide a footwear support component to solve the problems of existing support components being inconvenient to process finished shoes, having weak support, being not wear-resistant, and the extension tongue not being able to effectively guide the foot.
[0007] To achieve its purpose, this utility model adopts the following technical solution:
[0008] A footwear support component includes a support body, which is an arc-shaped block that matches the curvature of the human heel. One side of the arc-shaped block is a convex, downward-facing arc surface, and the other side is a concave, outward-facing arc surface. The convex arc surface is positioned at the rear of the arc-shaped block, and the concave arc surface is positioned at the front. An extension tongue, extending backward and upward in an arc-shaped structure, is provided at the center of the top surface of the arc-shaped block. The top surface of the extension tongue has an arc-shaped edge. The support body and the extension tongue are integrally injection molded. The height of the extension tongue is 0.2cm-7cm, and the vertical height of the extension tongue is no more than 1 / 3 of the total vertical height of the injection molded part. The hardness of the extension tongue is less than that of the support body, with the hardness of the extension tongue being 40A-85A and the hardness of the support body being 50D-82D. The arc-shaped edge and the support... The upper edge of the support body is smoothly transitioned. On the left and right sides of the front end of the support body, there are lower connecting blocks with a thickness less than that of the support body. The concave arc surface of the support body smoothly transitions with the two lower connecting blocks. The bottom surface of the lower connecting blocks is smoothly and continuously set with the bottom surface of the support body. The hardness of the lower connecting blocks is the same as that of the support body. On the left and right sides of the front end of the extension tongue, there are upper connecting blocks that are integrally formed with the lower connecting blocks and have a thickness less than that of the extension tongue. The front side of the extension tongue smoothly transitions with the two upper connecting blocks. The top surface of the upper connecting blocks is smoothly and continuously set with the top surface of the extension tongue. The hardness of the upper connecting blocks is the same as that of the extension tongue. The upper connecting blocks and lower connecting blocks on the same side are connected by an arc transition. The height of the upper connecting blocks in the vertical direction is not greater than 1 / 3 of the total height between the top surface of the upper connecting blocks and the bottom surface of the lower connecting blocks.
[0009] The arc-shaped edge includes two side slopes and an upper arc surface between the two side slopes. The upper arc surface is an upward convex arc surface. Both side slopes are located on the front side of the upper arc surface. The side slopes extend upward from front to back, and the upper ends of the two side slopes are respectively connected to the left and right ends of the upper arc surface through the arc transition of the side arc surface. The lower ends of the two side slopes are respectively smoothly connected to the top surface of the two upper connecting blocks.
[0010] The curvature of the upper arc surface is 5°-15°, and the curvature of the side arc surface is 40°-60°.
[0011] The top surface of the upper connecting block has an upward inclined surface that is inclined from front to back. The upward inclined surface is located below the front side of the side inclined surface, and the upward inclined surface and the side inclined surface are connected by an arc-shaped transition.
[0012] The curvature of the arc surface is 15°-25°.
[0013] The lower end of the upper connecting block and the upper end of the lower connecting block on the same side are arc-shaped to form an integral side connecting block. The opposite sides of the two connecting blocks are recessed with a connecting groove for the rear end of the shoe upper to extend into and connect with the side connecting block. The connecting groove extends through the upper and lower sides and extends to the front side of the side connecting block.
[0014] The lower connecting block is a convex arc block that bulges outward, and the upper connecting block is a concave arc block that bulges inward. The opposite sides of the two lower connecting blocks smoothly transition to the concave arc surface, and the opposite sides of the two upper connecting blocks smoothly transition to the front side of the extended tongue.
[0015] The arc of the lower edge of the arc-shaped block is 25°-35°.
[0016] The bottom center area of the arc-shaped block is recessed with a groove that allows the left and right ends of the injection molded part to undergo elastic deformation when they move relative to each other. The groove has a flared structure that gradually expands from top to bottom.
[0017] The rear side of the arc-shaped block and the rear side of the extended tongue are connected in an arc-shaped transition to form a decorative surface on which patterns or decorative parts are processed.
[0018] In this new type of shoe support component, during the upper molding process, there is no need to sew an outer fabric piece onto the area of the upper corresponding to the heel. This provides an installation space for the heel to be mounted in this area, even though the rear end of the upper is open. A sponge strip is then fixed to the front side of the injection-molded part, and the inner fabric piece wraps around the sponge strip and the front side of the injection-molded part. Finally, the left and right sides of the rear end of the upper are sewn or glued to the upper and lower connecting blocks on both sides, thus fixing the shoe support component to the upper. After fixing, the lower end of the shoe support component is fixed to the sole, thus completing the shoe molding process. Compared to existing technologies, this shoe features an extended tongue that guides the heel into the shoe at an angle. This extended tongue has a certain degree of rigidity, preventing collapse and providing better guidance for the foot. Furthermore, the tongue is softer than the curved block, allowing the heel to slide into the shoe with some elasticity, resulting in greater comfort. Since the entire shoe support component is a single injection-molded curved structure that matches the heel, no shoe last is needed to shape the heel, simplifying manufacturing. It also eliminates the need for an outer fabric piece from the upper corresponding to the heel, meaning the extended tongue's size doesn't need to be considered based on the upper's dimensions, allowing it to be positioned higher. Additionally, the entire shoe support component is injection-molded from a single piece of material, providing stronger support and greater wear resistance. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a cross-sectional structural diagram of the present invention. Detailed Implementation
[0021] To further explain the technical solution of this utility model, a detailed description is provided below in conjunction with the accompanying drawings.
[0022] A type of footwear support, such as Figures 1-2As shown, the device includes a support body 1, which is an arc-shaped block that matches the curvature of the human heel. One side of the arc-shaped block is a convex arc surface 100 that bulges outward, and the other side is a concave arc surface 200 that curves outward. The convex arc surface 100 is positioned at the rear of the arc-shaped block, and the concave arc surface 200 is positioned at the front. An extension tongue 2, which extends backward and upward in an arc shape, is provided at the center of the top surface of the arc-shaped block. The top surface of the extension tongue 2 is an arc-shaped edge 3. The support body 1 and the extension tongue 2 are injection molded parts integrally. Specifically, the injection molded parts are integrally injection molded using injection molding materials such as TPU and TPEE. The method of integrally injection molding parts using injection molding materials is a well-known technique to those skilled in the art and will not be described in detail here. The cross-sectional view of the injection molded part from the middle of the top surface is a vertically erected "S" shape. The cross-section, i.e., the front side of the extension tongue 2 extends upward from front to back, and the lower end of the extension tongue convexes forward. The concave arc surface 200 of the support body 1 is smoothly connected to the front side of the extension tongue 2 in an arc shape. The arc of the concave arc surface 200 is 30°-40°, preferably 34°. The thickness of the extension tongue 2 gradually decreases along the extension direction of the extension tongue 2, so that the lower front end of the extension tongue 2 and the upper front end of the support body 1 form a forward-convex upper arc surface 300 that limits the heel. The arc of the upper arc surface 300 is 36°-50°, preferably 46°. The lower rear end of the extension tongue 2 and the upper rear end of the support body 1 form a forward-concave upper arc surface 400. The thickness of the lower end of the support body 1 gradually decreases from top to bottom in the front-back direction. With the toes as the forefoot and the heel extending in an "S" shape, the entire injection-molded part also extends in an "S" shape, allowing for a better fit between the shoe heel and the foot. The convex arc surface 300 also prevents the heel from easily slipping out of the shoe. In application, during the upper molding process, there's no need to process an outer fabric piece corresponding to the heel in the area of the upper corresponding to the heel. This provides an installation space for fixing the heel in this area, leaving the rear of the upper open. The sponge strip is then fixed within the convex arc surface 300, and the inner lining fabric piece wraps around the sponge strip and the front side of the injection-molded part. Finally, the injection-molded part is fixed within the installation space. This eliminates the need for processing an outer fabric piece corresponding to the heel into the finished shoe. Because the curvature of the injection-molded part matches the curvature of the heel, the sponge strip and inner lining fabric piece can be directly shaped and installed onto the injection-molded part, eliminating the need for a shoe last to shape the heel. This makes heel molding more convenient and reduces processing steps.
[0023] The height of the extension tongue 2 is 0.2cm-7cm, and the vertical height of the extension tongue 2 is no more than 1 / 3 of the total vertical height of the injection molded part. The hardness of the extension tongue 2 is less than that of the support body 1, and the hardness of the extension tongue 2 is 40A-85A, while the hardness of the support body 1 is 50D-82D; specifically, the hardness of the extension tongue is 60A, the hardness of the support body 1 is 70D, and the height of the extension tongue is 3cm. In application, since the extension tongue 2 and the support body 1 are integrally injection molded, there is no need to process the heel using the outer fabric piece corresponding to the heel of the shoe upper. Therefore, the height of the extension tongue 2 does not need to be determined by the size of the outer fabric piece corresponding to the heel of the shoe upper, allowing the extension tongue 2 to be set higher according to different shoe styles, providing better guidance for the foot. Moreover, the extension tongue 2 is softer than the support body 1, making the heel more comfortable when it contacts the extension tongue 2. At the same time, the extension tongue 2 has a firmness that prevents it from collapsing, so that the extension tongue 2 can provide a certain support and make it easier for the heel to slide into the shoe.
[0024] The arc-shaped edge 3 smoothly transitions to the upper edge of the support body 1. Specifically, the arc-shaped edge 3 includes two side slopes 31 and an upper arc surface 32 located between the two side slopes 31. The upper arc surface 32 is an upwardly convex arc surface with an arc of 5°-15°, preferably 9°. Both side slopes 31 are located on the front side of the upper arc surface 32. The side slopes 31 extend upward from front to back, and the upper ends of the two side slopes 31 are respectively connected to the left and right ends of the upper arc surface 32 through an arc transition of the side arc surface 33. The arc of the side arc surface is 40°-60°, preferably 54°. The lower ends of the two side slopes 31 smoothly transition to the two upper edges of the support body 1. When in use, the curvature of the upper arc surface 32 is relatively small, making the upper arc surface 32 relatively flat, so that when the heel steps on the upper arc surface 32, it is more comfortable and the experience is better.
[0025] On the left and right sides of the front end of the support body 1, lower connecting blocks 4 with a thickness less than that of the support body 1 extend forward. The concave arc surface 200 of the support body 1 smoothly transitions to the two lower connecting blocks 4. The bottom surface of the lower connecting blocks 4 is smoothly and continuously connected to the bottom surface of the support body 1, and the hardness of the lower connecting blocks 4 is the same as that of the support body 1. On the left and right sides of the front end of the extension tongue 2, upper connecting blocks 5 are integrally formed with the lower connecting blocks 4 and with a thickness less than that of the extension tongue 2. The front side of the extension tongue 2 smoothly transitions to the two upper connecting blocks 5. The top surface of the upper connecting blocks 5 is smoothly and continuously connected to the top surface of the extension tongue 2, and the upper connecting blocks 5 are also connected to the lower connecting blocks 4. The hardness of block 5 is the same as that of the extension tongue 2. The upper connecting block 5 and the lower connecting block 4 on the same side are connected by an arc transition, and the height of the upper connecting block 5 in the vertical direction is not greater than 1 / 3 of the total height between the top surface of the upper connecting block 5 and the bottom surface of the lower connecting block 4. Specifically, the lower connecting block 4, the upper connecting block 5, the extension tongue 2 and the support body 1 are integrally injection molded. The bottom surface curvature of the support body 1 is 25°-35°, preferably 29°. The lower ends of the two inclined surfaces 31 on both sides smoothly transition to the top surfaces of the two upper connecting blocks 5, that is, the top surface of the upper connecting block 5 has a front-to-back curve. An upwardly inclined surface 51 is positioned below the front side of the side inclined surface 31, and the upwardly inclined surface 51 and the side inclined surface 31 are connected by an arc-shaped surface 52. The arc of the arc-shaped surface 52 is 15°-25°, preferably 19°. The lower end of the upper connecting block 5 and the upper end of the lower connecting block 4 on the same side form an integrally formed side connecting block with an arc-shaped structure. The lower connecting block 4 is a convex arc block that bulges outward, that is, the side of the two lower connecting blocks 4 facing away from each other bulges outward, and the side of the two lower connecting blocks facing each other is concave outward. The upper connecting block 5 is... The concave arc blocks, i.e., the opposite sides of the two upper connecting blocks 5 are concave, and the opposite sides of the two lower connecting blocks are convex, with the opposite sides of the two lower connecting blocks 4 smoothly transitioning to the concave arc surface 200, and the opposite sides of the two upper connecting blocks 5 smoothly transitioning to the convex arc surface 300. This ensures that the extension of the side connecting blocks is consistent with the extension of the injection molded part and both extend in an "S" shape, allowing the side connecting blocks to better fit the foot. Preferably, the opposite sides of the two connecting blocks are recessed with connecting grooves 500 for the rear end of the shoe upper to extend into and connect with the side connecting blocks, and the connecting grooves 500 extend vertically and extend to the front side of the side connecting blocks. In application, the connecting grooves 500 provide space for the rear end of the shoe upper to be fixedly installed, facilitating the rear end of the shoe upper to extend into the connecting groove and be fixed, and ensuring a smooth transition between the outer side of the shoe upper and the convex arc surface 100 of the injection molded part, improving aesthetics.Furthermore, the upper connecting block 5 and the lower connecting block 4 smoothly transition to the front side of the injection molded part, making the foot feel smoother and more comfortable when it comes into contact with the inner side of the upper connecting block 5 and the lower connecting block 4. In addition, the upper connecting block 5 is a convex arc block that smoothly transitions with the extension tongue and is softer than the lower connecting block 4, so that the upper connecting block 5 can better cooperate with the extension tongue 2 to guide the foot.
[0026] In this new type of shoe support, during the molding of the shoe upper, there is no need to sew an outer fabric piece onto the area of the shoe upper corresponding to the heel. This provides an installation space for the heel to be mounted on the shoe upper, even though the rear end of the shoe upper is open. Then, a sponge strip is fixed to the front side of the injection molded part, and the inner fabric piece wraps around the sponge strip and the front side of the injection molded part. Finally, the left and right sides of the rear end of the shoe upper are respectively inserted into the connecting groove 500 and sewn or glued to the bottom of the connecting groove 500, thus fixing the support body 1 to the shoe upper. After fixing, the lower end of the injection molded part is fixed to the sole, thus completing the shoe molding. In application, the heel is guided into the shoe at an angle using the extension tongue 2. The extension tongue has a certain degree of rigidity, preventing collapse and providing good guidance for the foot. The extension tongue 2 is softer than the curved block, giving the heel a certain elasticity as it slides into the shoe, resulting in better comfort. Furthermore, since the entire shoe support component is a one-piece injection-molded curved structure that matches the heel, no shoe last is needed to shape the heel, making processing more convenient. It also eliminates the need to use an outer fabric piece from the upper corresponding to the heel to create the finished shoe, meaning the size of the extension tongue 2 doesn't need to be considered based on the upper's dimensions, allowing it to be set higher. Simultaneously, the entire shoe support component is injection-molded from a single piece of material, providing strong support and greater wear resistance.
[0027] In this invention, a key advantage is that the bottom center of the arc-shaped block is recessed with a groove 600 that allows the left and right ends of the injection molded part to elastically deform when they move relative to each other. The groove 600 has a flared structure that gradually expands from top to bottom. In application, when the two rear ends of the shoe upper are fixedly connected to the bottom of the two connecting grooves 500, the left and right ends of the injection molded part have elastic space for relative movement, facilitating the matching of the injection molded part with the shoe upper and making it easier to fix the injection molded part, allowing the entire support component to better conform to the foot.
[0028] In this invention, the rear side of the arc-shaped block and the rear side of the extended tongue 2 are connected in an arc-shaped transition to form a decorative surface on which patterns or decorative parts are processed. In application, patterns can be printed on the decorative surface or stripes of different shapes can be integrally molded as needed, so that the convex arc surface 100 and concave arc surface 400 of the injection molded part are compatible with the overall style of the shoe upper, allowing the injection molded part to be widely used in different styles of shoe uppers.
[0029] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.
Claims
1. A shoe support, comprising a support body which is an arc-shaped block matching the human heel curvature, one side of the arc-shaped block is a lower convex arc surface which is convex outward, the other side is a lower concave arc surface which is concave outward, the lower convex arc surface is behind the position where the arc-shaped block is located, and the lower concave arc surface is in front of the position where the arc-shaped block is located, and a extension tongue which is inclined upward and rearward and has an arc structure is arranged at the center area of the top surface of the arc-shaped block, and the top surface of the extension tongue is an arc-shaped edge; characterized in that: The support body and the extension tongue are integrally injection molded, the height of the extension tongue is 0.2-7 cm, the height of the extension tongue in the up-down direction is not more than 1 / 3 of the total height of the injection molded part in the up-down direction, the hardness of the extension tongue is less than the hardness of the support body, the hardness of the extension tongue is 40A-85A, the hardness of the support body is 50D-82D, the arc-shaped edge and the upper edge of the support body are smoothly connected, the left and right sides of the front end of the support body respectively extend forward and have lower connecting blocks whose thickness is less than the thickness of the support body, the lower concave surface of the support body and the two lower connecting blocks are smoothly connected, the bottom surface of the lower connecting block and the bottom surface of the support body are smoothly and continuously arranged, and the hardness of the lower connecting block is the same as the hardness of the support body, the left and right sides of the front end of the extension tongue respectively extend forward and have upper connecting blocks which are integrally formed with the lower connecting blocks and whose thickness is less than the thickness of the extension tongue, the front side of the extension tongue and the two upper connecting blocks are smoothly connected, the top surface of the upper connecting block and the top surface of the extension tongue are smoothly and continuously arranged, and the hardness of the upper connecting block is the same as the hardness of the extension tongue, the upper connecting block and the lower connecting block on the same side are arc-shaped and connected, and the height of the upper connecting block in the up-down direction is not more than 1 / 3 of the total height between the top surface of the upper connecting block and the bottom surface of the lower connecting block.
2. A footwear support according to claim 1, wherein: The arc-shaped edge includes two side slopes and an upper arc surface between the two side slopes, the upper arc surface is a convex arc surface convex upward, the two side slopes are on the front side of the upper arc surface, the side slope extends upward from front to back, and the upper end of the side slope is arc-shaped and connected to the left and right ends of the upper arc surface through a side arc surface, and the lower end of the side slope is smoothly connected to the top surface of the upper connecting block.
3. A footwear support according to claim 2, wherein: The curvature of the upper arc surface is 5-15°, and the curvature of the side arc surface is 40-60°.
4. A footwear support according to claim 2, wherein: The top surface of the upper connecting block has an upper inclined surface arranged upward from front to back, the upper inclined surface is below the front side of the side slope, and the upper inclined surface and the side slope are arc-shaped and connected through an arc surface.
5. A footwear support according to claim 4, wherein: The curvature of the arc surface is 15-25°.
6. A footwear support according to claim 4, wherein: The lower end of the upper connecting block and the upper end of the lower connecting block on the same side are arc-shaped and connected to form an integrally formed side connecting block, one side of the two side connecting blocks is concave and has a connecting groove for the rear end of the upper surface to extend into and connect with the side connecting block, and the connecting groove penetrates upward and downward and reaches the front side of the side connecting block.
7. A footwear support according to claim 1, wherein: The lower connecting block is a convex arc block convex outward, the upper connecting block is a concave arc block concave inward, and the opposite side of the two lower connecting blocks is smoothly connected to the lower concave surface, and the opposite side of the two upper connecting blocks is smoothly connected to the front side of the extension tongue.
8. A footwear support according to claim 1, wherein: The curvature of the lower edge of the arc-shaped block is 25-35°.
9. A footwear support according to claim 1, wherein: The central area of the bottom surface of the arc-shaped block is concave and has a groove capable of elastically deforming when the left and right ends of the injection molded part move relative to each other, and the groove has a horn structure gradually expanding from top to bottom.
10. A footwear support according to claim 1, wherein: The rear side of the arc-shaped block and the rear side of the extension tongue are arc-shaped and connected to form a decorative surface for processing patterns or decorative parts thereon.