Injection molded shoe midsole and upper insert anchor connection structure
By using an injection-molded midsole and an embedded anchoring connection structure between the shoe upper and the shoe midsole, the problem of easy loosening of the connection between the shoe midsole and the shoe upper is solved, achieving a firm and durable connection and supporting easy disassembly, which is suitable for high-performance sports shoes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN QUANZHOU XINGKAI SHOES CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-06-26
AI Technical Summary
The existing method of connecting the midsole and upper is prone to glue coming undone or loose threads, and cannot be disassembled for adjustment.
The shoe adopts an injection-molded midsole and an embedded anchoring connection structure with the upper. The anchoring strip is connected by adhesive bonding or sewing through the cooperation of the limiting port. The anchoring strip can be fixed and removed by the operation of the decorative shell and the long plate.
It achieves a secure connection between the midsole and the upper, enhancing durability and stability, and supporting easy disassembly and reassembly.
Smart Images

Figure CN224403000U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shoe technology, specifically an embedded anchoring connection structure between an injection-molded shoe midsole and the shoe upper. Background Technology
[0002] The embedded anchoring connection between the midsole and upper is a technology that uses specially designed grooves in the midsole to embed high-strength anchoring strips along the edge of the upper, physically embedding and locking the anchoring strips within the grooves. This creates a mechanical interlocking bond far exceeding traditional adhesive bonding, bringing revolutionary improvements: extreme strength, exceptional durability, and superior stability support, making it one of the key core technologies of modern high-performance athletic shoes. You can think of it as a mortise and tenon joint in woodworking, achieving an unbreakable connection through precise fit of shapes.
[0003] Currently available shoe midsoles and uppers are typically connected using adhesive bonding or sewing reinforcement without secondary fixation. Over time, this can easily lead to glue separation or loose threads. Furthermore, existing midsoles and uppers are usually fixed together as a single unit, making them impossible to disassemble or remove as needed. Utility Model Content
[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides an embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper.
[0005] This utility model is implemented as follows: a structure for embedded anchoring connection between injection-molded shoe midsole and shoe upper is constructed. The device includes a shoe body, a shoe sole disposed on the bottom end face of the shoe body, a shoe midsole bonded to the bottom end face of the shoe body, and the bottom end face of the shoe midsole and the top end face of the shoe sole are fixedly connected to each other, multiple limiting holes are opened at the lower edge of the outer side of the shoe body, multiple anchoring strips are fixedly connected to the inner side wall of the upper end of the shoe midsole, anchoring grooves are opened at the left and right ends of the outer side of the anchoring strips, and multiple decorative shells are disposed on the outer side of the shoe sole.
[0006] It also includes multiple rubber slots on the outer side of the sole, a rubber block fixedly connected to the lower end face of the decorative shell, the rubber block being inserted into the inner side of the rubber slot, a placement opening at the center of the lower end face of the decorative shell, a long plate inserted and rotatably connected to the outer side of the sole, the long plate passing through the midsole and rotatably connected to each other at the center of the anchor strip, multiple inner grooves inside the shoe body, the inner grooves communicating with the limiting openings, and a slidable locking plate inserted and slidably connected to the left and right end faces of the inner side of the inner groove.
[0007] Preferably, the shoe body is provided with a spring inside, and the spring is fixedly connected to the card plate for resetting. The anchoring strip is rotatably connected with a bidirectional screw, and the upper end face of the bidirectional screw is fixedly connected to the lower end face of the long plate. Two sliders are threadedly connected to the bidirectional screw, and the sliders are rotatably connected to a connecting plate. A partition is slidably connected to the inside of the anchoring groove, and the partition and the connecting plate are rotatably connected to each other.
[0008] Preferably, a C-shaped plate is slidably connected to the inner side of the inner groove, and the lower end face of the C-shaped plate is a conical surface. The left and right end faces of the C-shaped plate are provided with slots. The cross-section of the rubber block is trapezoidal. The inner wall of the rubber slot is provided with a guide slope that matches the trapezoidal hypotenuse of the rubber block. The rubber block and the rubber slot are interference-fitted. An axial limiting ring is provided at the rotational connection between the long plate and the sole. The limiting ring is embedded inside the sole, and the long plate passes through the center of the limiting ring.
[0009] Preferably, the anchoring strip is made of elastic silicone material, with a nylon fiber reinforcing layer embedded inside, and the inner wall of the anchoring groove is provided with anti-detachment protrusions. The two ends of the spring are fixedly connected to limiting posts, and the end face of the card plate near the spring is provided with a groove that matches the limiting posts.
[0010] Preferably, the rubber clip of the decorative shell has a metal spring embedded inside, and a magnetic layer is provided at the bottom of the rubber clip. The metal spring and the magnetic layer generate an adsorption force when they are engaged.
[0011] Preferably, the anchoring strips are evenly distributed along the circumference of the shoe midsole, and each anchoring strip corresponds to a limiting opening.
[0012] Preferably, the conical surface of the C-shaped plate has an inclination angle of 30°-45°, and the inner wall of the bayonet is provided with anti-slip ridges.
[0013] This utility model has the following advantages: This utility model provides an improved embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper, which has the following improvements compared to similar equipment:
[0014] The present invention describes an embedded anchoring connection structure for injection-molded shoe midsole and upper. When connecting the shoe midsole and upper, the upper surface of the shoe midsole is first joined with the lower surface of the upper through adhesive bonding or sewing reinforcement. After completion, the anchoring strip is aligned with the limiting opening and then inserted into the limiting opening. Pressure is applied to the anchoring strip by pressing the decorative shell, causing the locking plate to pass through the locking opening and lock into the inside of the anchoring groove, thus securing the anchoring strip. When it needs to be removed, the decorative shell is manually pried open, and then the long plate is clamped and rotated using a tool. This relative movement of the partition plate pushes the locking plate out of the anchoring groove and the inside of the locking opening. After completion, the long plate is rotated in the opposite direction to remove the anchoring strip from the inside of the limiting opening. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the shoe body of this utility model;
[0016] Figure 2 This is a schematic diagram of the shoe midsole of this utility model;
[0017] Figure 3 This is a utility model Figure 2 Enlarged view of structure A;
[0018] Figure 4 This is a plan view showing the connection between the shoe upper, sole, and midsole of this utility model;
[0019] Figure 5 This is a utility model Figure 4 Enlarged schematic diagram of structure B.
[0020] The components include: shoe body-1, shoe sole-2, shoe midsole-3, limiting opening-4, anchoring strip-5, anchoring groove-6, decorative shell-7, rubber snap-in-8, rubber snap-in-9, placement opening-10, long plate-11, inner groove-12, snap plate-13, spring-14, two-way screw-15, slider-16, connecting plate-17, partition plate-18, C-shaped plate-19, snap-in-20, guide slope-21, limiting ring-22, nylon fiber reinforcement layer-23, anti-slip ridge-24, limiting post-25, groove-26. Detailed Implementation
[0021] The following is in conjunction with the appendix Figures 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] Example 1:
[0025] Please see Figures 1-4 This utility model discloses an embedded anchoring connection structure between an injection-molded shoe midsole and an upper, comprising a shoe body 1, a sole 2 disposed on the bottom end face of the shoe body 1, a shoe midsole 3 bonded to the bottom end face of the shoe body 1, with the bottom end face of the shoe midsole 3 and the top end face of the shoe midsole 2 fixedly connected to each other, multiple limiting holes 4 opened at the lower edge of the outer side of the shoe body 1, multiple anchoring strips 5 fixedly connected to the inner side wall of the upper end of the shoe midsole 3, anchoring grooves 6 opened at the left and right ends of the outer side of the anchoring strips 5, and multiple decorative shells 7 disposed on the outer side of the shoe midsole 2. The outer side of the sole 2 has multiple rubber slots 8. The lower end of the decorative shell 7 is fixedly connected to a rubber block 9, and the rubber block 9 is inserted into the inner side of the rubber slot 8. The center of the lower end of the decorative shell 7 has a placement opening 10. The outer side of the sole 2 is inserted and rotatably connected to a long plate 11, and the long plate 11 passes through the midsole 3 and is rotatably connected to each other inside the anchor strip 5. The inside of the shoe body 1 has multiple inner grooves 12, and the inner grooves 12 are interconnected with the limiting opening 4. The left and right ends of the inner side of the inner groove 12 are inserted and slidably connected to a card plate 13.
[0026] The working principle of the embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper based on Embodiment 1 is as follows:
[0027] First, when it is necessary to connect the midsole and the upper, the upper surface of the midsole and the lower surface of the upper are first joined by adhesive bonding or sewing reinforcement. After completion, the anchoring strip 5 is aligned with the limiting hole 4 and then inserted into the limiting hole 4. At the same time, pressure is applied to the anchoring strip 5 by pressing the decorative shell 7. When the anchoring strip 5 enters the inner side of the limiting hole 4, it will push the C-shaped plate 19 to move when it comes into contact with the C-shaped plate 19. The locking plate 13 passes through the locking hole 20 and is locked into the inner side of the anchoring groove 6, thus locking and fixing the anchoring strip 5.
[0028] Example 2:
[0029] Please see Figures 2-5 The present invention provides an embedded anchoring connection structure between an injection-molded shoe midsole and an upper. Compared to Embodiment 1, this embodiment further includes:
[0030] The shoe body 1 has a spring 14 inside, and the spring 14 is fixedly connected to the locking plate 13 for resetting. The anchoring strip 5 is rotatably connected to a bidirectional screw 15, and the upper end face of the bidirectional screw 15 is fixedly connected to the lower end face of the long plate 11. Two sliders 16 are threaded onto the bidirectional screw 15, and the sliders 16 are rotatably connected to a connecting plate 17. A partition plate 18 is slidably connected to the inside of the anchoring groove 6, and the partition plate 18 is rotatably connected to the connecting plate 17. A C-shaped plate 19 is slidably connected to the inside of the inner groove 12, and the lower end face of the C-shaped plate 19 is conical. The left and right end faces of the C-shaped plate 19 have slots 20. The cross-section of the rubber locking block 9 is trapezoidal. The inner wall of the rubber slot 8 has a guide slope 21 that matches the trapezoidal hypotenuse of the rubber locking block 9, and the rubber locking block 9 and the rubber slot 8 are interference-fitted. The long plate 11 and An axial limiting ring 22 is provided at the rotating connection of the sole 2. The limiting ring 22 is embedded inside the sole 2, and the long plate 11 passes through the center of the limiting ring 22. The anchoring strip 5 is made of elastic silicone material, with a nylon fiber reinforcement layer 23 embedded inside. The inner wall of the anchoring groove 6 is provided with anti-detachment protrusions 24. The two ends of the spring 14 are fixedly connected to the limiting post 25. The end face of the locking plate 13 near the spring 14 is provided with a groove 26 that matches the limiting post 25. The rubber locking block 9 of the decorative shell 7 is embedded with a metal spring. The bottom of the rubber locking opening 8 is provided with a magnetic layer. The metal spring and the magnetic layer generate an adsorption force when locked. The anchoring strip 5 is evenly distributed around the midsole 3, and each anchoring strip 5 corresponds to the limiting opening 4. The conical surface of the C-shaped plate 19 has an inclination angle of 30°-45°, and the inner wall of the locking opening 20 is provided with anti-slip ridges.
[0031] The working principle of this embodiment is as follows:
[0032] First, when it is necessary to remove it, manually pry open the decorative shell 7, then use a tool to clamp the long plate 11 and rotate it at the same time, driving the bidirectional screw 15 to move the slider 16. The connecting plate 17 pushes the partition 18 to move. At the same time, the partition 18 contacts the clamping plate 13 and pushes the clamping plate 13 to move out of the anchoring groove 6. Continue to push the clamping plate 13 to move through the clamping opening 20 and push it out of the inner side of the clamping opening 20. Then manually pull the edge of the shoe midsole 3 outward slightly, which drives the anchoring strip 5 to move. At the same time, the partition 18 drives the C-shaped plate 19 to reset. After completion, rotate the long plate 11 in the opposite direction to drive the partition 18 to reset, and the anchoring strip 5 can be taken out from the inner side of the limiting opening 4.
[0033] This utility model provides an improved embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper. When connecting the shoe midsole and the shoe upper, the upper surface of the shoe midsole is first joined with the lower surface of the shoe upper by adhesive bonding or sewing reinforcement. After completion, the anchoring strip 5 is aligned with the limiting opening 4 and then inserted into the limiting opening 4. Pressure is applied to the anchoring strip 5 by pressing the decorative shell 7, so that the clamping plate 13 passes through the locking opening 20 and is locked into the inside of the anchoring groove 6, thus locking and fixing the anchoring strip 5. When it is necessary to remove it, the decorative shell 7 is manually opened, and then the long plate 11 is clamped and rotated by a tool, which drives the partition 18 to move and push the clamping plate 13 out of the inside of the anchoring groove 6 and the locking opening 20. After completion, the long plate 11 is rotated in the opposite direction to remove the anchoring strip 5 from the inside of the limiting opening 4.
[0034] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.
[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An embedded anchoring connection structure for injection-molded shoe midsole and shoe upper, comprising a shoe body (1), a shoe sole (2) disposed on the bottom end face of the shoe body (1), a shoe midsole (3) bonded to the bottom end face of the shoe body (1), wherein the bottom end face of the shoe midsole (3) and the upper end face of the shoe sole (2) are fixedly connected to each other, a plurality of limiting holes (4) opened at the lower edge of the outer side of the shoe body (1), a plurality of anchoring strips (5) fixedly connected to the inner side wall of the upper end of the shoe midsole (3), anchoring grooves (6) opened at the left and right ends of the outer side of the anchoring strips (5), and a plurality of decorative shells (7) disposed on the outer side of the shoe sole (2); characterized in that The outer side of the sole (2) is provided with multiple rubber slots (8). The lower end face of the decorative shell (7) is fixedly connected with a rubber block (9), and the rubber block (9) is inserted into the inner side of the rubber slot (8). The center of the lower end face of the decorative shell (7) is provided with a placement opening (10). The outer side of the sole (2) is inserted and rotatably connected with a long plate (11), and the long plate (11) passes through the midsole (3) and is located in the center of the anchoring strip (5) and rotates with each other. The inside of the shoe body (1) is provided with multiple inner grooves (12), and the inner grooves (12) are interconnected with the limiting opening (4). The left and right ends of the inner side of the inner groove (12) are inserted and slidably connected with a card plate (13).
2. The embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper according to claim 1, characterized in that, The shoe body (1) is provided with a spring (14) inside, and the spring (14) is fixedly connected to the card plate (13) so as to be reset. The anchoring strip (5) is rotatably connected with a bidirectional screw (15), and the upper end face of the bidirectional screw (15) is fixedly connected to the lower end face of the long plate (11). Two sliders (16) are threadedly connected to the bidirectional screw (15), and the sliders (16) are rotatably connected to a connecting plate (17). The inner side of the anchoring groove (6) is slidably connected to a partition (18), and the partition (18) and the connecting plate (17) are rotatably connected to each other.
3. The embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper according to claim 2, characterized in that, A C-shaped plate (19) is slidably connected to the inner side of the inner groove (12), and the lower end face of the C-shaped plate (19) is a conical surface. The left and right end faces of the C-shaped plate (19) are provided with slots (20). The cross-section of the rubber block (9) is trapezoidal. The inner wall of the rubber slot (8) is provided with a guide slope (21) that matches the trapezoidal hypotenuse of the rubber block (9). The rubber block (9) and the rubber slot (8) are interference fit. An axial limiting ring (22) is provided at the rotational connection between the long plate (11) and the sole (2). The limiting ring (22) is embedded inside the sole (2), and the long plate (11) passes through the center of the limiting ring (22).
4. The embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper according to claim 3, characterized in that, The anchoring strip (5) is made of elastic silicone material and has a nylon fiber reinforcement layer (23) embedded inside. The inner wall of the anchoring groove (6) is provided with anti-detachment protrusions (24). The two ends of the spring (14) are fixedly connected to the limiting posts (25). The end face of the card plate (13) near the spring (14) is provided with a groove (26) that matches the limiting posts (25).
5. The embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper according to claim 4, characterized in that, The decorative shell (7) has a metal spring embedded in the rubber clip (9), and the bottom of the rubber clip (8) is provided with a magnetic layer. The metal spring and the magnetic layer generate an adsorption force when they are engaged.
6. The embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper according to claim 5, characterized in that, The anchoring strips (5) are evenly distributed around the midsole (3) of the shoe, and each anchoring strip (5) corresponds to the limiting opening (4).
7. The embedded anchoring connection structure between the injection-molded shoe midsole and the shoe upper according to claim 6, characterized in that, The conical surface of the C-shaped plate (19) has an inclination angle of 30°-45°, and the inner wall of the bayonet (20) is provided with anti-slip ridges.