Front-back double-layer type ETPU shoe sole

By using a double-layer ETPU sole design at the front and back, combined with connecting components and multiple functional structures, the problem of sole material adjustment is solved, improving production efficiency and performance.

CN224125347UActive Publication Date: 2026-04-17JINJIANG JIACHAO SHOE MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINJIANG JIACHAO SHOE MATERIAL CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing ETPU soles are difficult to adjust in terms of hardness and softness to meet different sports requirements, resulting in reduced production efficiency.

Method used

It adopts a double-layer structure, connecting the heel support plate and the forefoot support plate together through connecting components and fixing them with glue. It allows for the combination of different materials and incorporates anti-slip, shock-absorbing, and breathable components to meet different needs.

Benefits of technology

It enables flexible adjustment of the sole material, reduces manufacturing difficulty, improves production efficiency, and enhances the stability, comfort, and lifespan of the shoes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ETPU shoe soles, and discloses a front-back double-layer type ETPU shoe sole which comprises a heel supporting plate, a connecting assembly is arranged on the outer side of the heel supporting plate, the connecting assembly comprises an arch supporting block fixedly connected to the outer side of the heel supporting plate, a sliding way is formed in the arch supporting block, and a sliding groove is formed in the sliding way. A glue injection groove is formed in the arch supporting block, the slide way is communicated with the glue injection groove, a connecting block is slidably connected to the interior of the slide way, and a front sole supporting plate is fixedly connected to the outer side of the connecting block. By pushing the front sole supporting plate, the connecting block is moved into the slide way, so that the foot arch supporting block and the front sole supporting plate are connected together, then glue is injected into the slide way through the glue injection groove, the connecting block is fixed into the slide way through liquid glue, and therefore machining of the shoe sole is completed. Therefore, the heel supporting plate and the front sole supporting plate can be made of different materials, different requirements can be met, and the manufacturing difficulty of the shoe sole can be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of ETPU shoe sole technology, and in particular to a double-layer ETPU shoe sole. Background Technology

[0002] ETPU, or expanded thermoplastic polyurethane, is a high-performance foam material known for its excellent elasticity, durability, and energy return. It is formed by expanding thermoplastic polyurethane beads using heat and pressure, resulting in a closed-cell foam structure.

[0003] With the continuous development of science and technology, expanded thermoplastic polyurethane (ETPU) is increasingly used in shoe materials. In the market, expanded thermoplastic polyurethane is generally used as a shoe midsole material. Its molding method is generally to put ETPU particles into a molding mold, and then use water vapor to heat and foam it a second time, so that adjacent ETPU particles can be fused together. After cooling, ETPU shoe sole is obtained.

[0004] Nowadays, as people gradually enjoy various sports, the requirements for shoe soles are gradually increasing. For example, people want the soles to be harder, softer, or the front half to be soft and the back half hard. These various requirements make it increasingly difficult to manufacture shoe soles, leading to a decrease in production efficiency. Utility Model Content

[0005] To overcome the technical defects of existing technologies, this utility model provides a double-layer ETPU sole.

[0006] The technical solution adopted by this utility model is as follows: it includes a heel support plate, and a connecting component is provided on the outer side of the heel support plate. The connecting component includes an arch support block fixedly connected to the outer side of the heel support plate. A sliding track is opened inside the arch support block, and an injection groove is opened inside the arch support block. The sliding track is connected to the injection groove. A connecting block is slidably connected inside the sliding track, and a forefoot support plate is fixedly connected to the outer side of the connecting block.

[0007] The above solution involves pushing the forefoot support plate to move the connecting block into the slide, thereby connecting the arch support block and the forefoot support plate together. Then, glue is injected into the slide through the glue injection groove to fix the connecting block inside the slide, thus completing the sole processing. This method allows the heel support plate and the forefoot support plate to be made of different materials to meet different needs, reduces the manufacturing difficulty of the sole, ensures the sole production time, and improves production efficiency.

[0008] Preferably, both the heel support plate and the forefoot support plate are provided with anti-slip components at their bottoms. The anti-slip components include anti-slip patterns formed inside the heel support plate and the forefoot support plate, and anti-slip studs are fixedly connected to the bottoms of both the heel support plate and the forefoot support plate.

[0009] The above-mentioned solutions, using anti-slip patterns and anti-slip studs, can improve the wearer's foot grip, thereby increasing the friction of the shoes and allowing the wearer to walk more steadily.

[0010] Preferably, the heel support plate and the forefoot support plate are provided with an installation assembly at their top. The installation assembly includes two frames that are respectively fixedly connected to the top of the heel support plate and the forefoot support plate. Two soft segmented plates are fixedly connected between the two frames. The bottom of the soft segmented plates is fixedly connected to the top of the forefoot support plate.

[0011] By fixing a soft segmented plate between the two frames, the sole can be prevented from wrinkling when the wearer stands on tiptoe, thus reducing the possibility of cracks at the edges of the sole and extending its lifespan.

[0012] Preferably, the frame is provided with a shock-absorbing component, which includes an ETPU insole layer fixedly connected to the inside of the frame, and the ETPU insole layer has ventilation holes inside.

[0013] The above solution involves creating ventilation holes inside the ETPU shoe lining, which allows for the exchange of air between the bottom of the shoe's interior and the outside of the shoe. This enables air from the outside of the shoe to enter the bottom of the shoe's interior, thereby improving the shoe's comfort.

[0014] Preferably, the frame is provided with an anti-compression component, which includes a soft support layer fixedly connected to the inside of the frame, and the soft support layer has hexagonal openings.

[0015] The above solution improves the support of the soft support layer by creating hexagonal openings inside, thus providing better support for the foot when walking and enhancing wearing comfort.

[0016] Preferably, an auxiliary component is provided inside the frame, the auxiliary component including a breathable and waterproof non-woven fabric layer fixedly connected inside the frame, the bottom of the breathable and waterproof non-woven fabric layer being fixedly connected to the top of the soft support layer.

[0017] The above solution uses a breathable and waterproof non-woven fabric layer to increase the friction between the foot and the shoe during walking, thereby improving stability and reducing the likelihood of the shoe slipping between the foot and the shoe while walking.

[0018] Preferably, the two ends of the soft support layer are fixedly connected to the inside of the frame, and the bottom of the soft support layer is fixedly connected to the top of the ETPU shoe inner bottom layer.

[0019] The above solution uses a soft support layer that is fixed to the inside of the frame at only two ends, allowing the hexagonal opening to connect to the inside of the shoe. This allows the air inside the shoe to be drawn into the hexagonal opening and then transferred to the bottom of the shoe cavity for gas conversion. This reduces the temperature and humidity at the bottom of the shoe cavity, thus ensuring the comfort of wearing the shoe.

[0020] Preferably, the bottom of the ETPU insole is fixedly connected to the heel support plate and the top of the forefoot support plate, respectively.

[0021] The above solution reduces the possibility of slippage of the ETPU shoe inner layer by fixing it to the heel support plate and the forefoot support plate.

[0022] The beneficial effects of this utility model are: by pushing the forefoot support plate, the connecting block is moved into the slide, thereby connecting the arch support block and the forefoot support plate together. Then, glue is injected into the slide through the glue injection groove, and the connecting block is fixed in the slide by liquid glue, thus completing the processing of the sole. This allows the heel support plate and the forefoot support plate to be made of different materials to meet different needs and reduces the manufacturing difficulty of the sole. Attached Figure Description

[0023] Figure 1 This is a top view of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of this utility model viewed from below.

[0025] Figure 3 This is a schematic diagram showing the disassembled structure of some components of this utility model.

[0026] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model.

[0027] Figure 5 This is a top view of some components of the present invention.

[0028] Explanation of reference numerals in the attached diagram: 1. Heel support plate; 2. Arch support block; 3. Slide track; 4. Injection groove; 5. Connecting block; 6. Forefoot support plate; 7. Anti-slip texture; 8. Anti-slip studs; 9. Frame; 10. Soft segmented plate; 11. ETPU insole; 12. Ventilation holes; 13. Soft support layer; 14. Hexagonal openings; 15. Breathable and waterproof non-woven fabric layer. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] like Figures 1 to 5 As shown, this embodiment provides a double-layer ETPU sole including a heel support plate 1. A connecting component is provided on the outer side of the heel support plate 1. The connecting component includes an arch support block 2 fixedly connected to the outer side of the heel support plate 1. A sliding track 3 is provided inside the arch support block 2. An injection groove 4 is provided inside the arch support block 2. The sliding track 3 communicates with the injection groove 4. A connecting block 5 is slidably connected inside the sliding track 3. A forefoot support plate 6 is fixedly connected to the outer side of the connecting block 5.

[0031] By pushing the forefoot support plate 6, the connecting block 5 can be moved into the slide 3, thereby connecting the arch support block 2 and the forefoot support plate 6 together. Then, glue is injected into the slide 3 through the glue injection groove 4, thereby fixing the connecting block 5 inside the slide 3 with liquid glue. This completes the processing of the sole. The heel support plate 1 and the forefoot support plate 6 can be made of different materials to meet different needs, and the manufacturing difficulty of the sole can be reduced, thus ensuring the manufacturing time of the sole and improving production efficiency.

[0032] like Figure 2 As shown, both the heel support plate 1 and the forefoot support plate 6 are equipped with anti-slip components at their bottoms. The anti-slip components include anti-slip patterns 7 formed inside the heel support plate 1 and the forefoot support plate 6, and anti-slip studs 8 are fixedly connected to the bottoms of both the heel support plate 1 and the forefoot support plate 6.

[0033] Among them, the anti-slip texture 7 and anti-slip studs 8 can improve the wearer's foot grip, thereby increasing the friction between the shoe and the ground, so that the wearer can walk more steadily.

[0034] like Figure 1 As shown, the heel support plate 1 and the forefoot support plate 6 are provided with mounting components on their tops. The mounting components include two frame frames 9 that are fixedly connected to the tops of the heel support plate 1 and the forefoot support plate 6, respectively. Two soft segmented plates 10 are fixedly connected between the two frame frames 9. The bottom of the soft segmented plates 10 is fixedly connected to the top of the forefoot support plate 6.

[0035] By fixing a soft segmented plate 10 between the two frame 9, the soft segmented plate 10 can prevent the sole from wrinkling when the wearer stands on tiptoe, thereby reducing the possibility of cracks appearing on the edge of the sole and thus improving the service life of the sole.

[0036] like Figure 4 As shown, the frame 9 has a shock-absorbing component inside, which includes an ETPU insole 11 fixedly connected inside the frame 9. The ETPU insole 11 has ventilation holes 12 inside.

[0037] The ETPU shoe inner bottom layer 11 has ventilation holes 12, which can exchange the air in the bottom of the shoe cavity with the air on the outside of the shoe, so that the air on the outside of the shoe can enter the bottom of the shoe cavity, thereby improving the comfort of the shoe.

[0038] like Figure 5 As shown, an anti-compression component is provided inside the frame 9. The anti-compression component includes a soft support layer 13 fixedly connected inside the frame 9. A hexagonal opening 14 is provided inside the soft support layer 13.

[0039] Specifically, by creating hexagonal openings 14 inside the soft support layer 13, the support of the soft support layer 13 is improved, thereby providing better support for the foot when walking, and thus improving the comfort of wearing it.

[0040] like Figure 4 As shown, an auxiliary component is provided inside the frame 9. The auxiliary component includes a breathable and waterproof non-woven fabric layer 15 that is fixedly connected inside the frame 9. The bottom of the breathable and waterproof non-woven fabric layer 15 is fixedly connected to the top of the soft support layer 13.

[0041] The breathable and waterproof non-woven fabric layer 15 can increase the friction between the foot and the shoe when walking, thereby improving stability and reducing the possibility of the shoe sliding against the foot when walking.

[0042] like Figure 4 As shown, the two ends of the soft support layer 13 are fixedly connected to the inside of the frame 9, and the bottom of the soft support layer 13 is fixedly connected to the top of the ETPU shoe inner bottom layer 11.

[0043] The soft support layer 13 is fixed to the inside of the frame 9 at only two ends, so that the inside of the hexagonal opening 14 can be connected to the inside of the shoe. This allows the gas inside the shoe to be absorbed into the hexagonal opening 14 and transferred to the bottom of the shoe cavity, thereby converting the gas and reducing the temperature and humidity at the bottom of the shoe cavity, thus ensuring the comfort of wearing the shoe.

[0044] like Figure 4 As shown, the bottom of the ETPU shoe inner bottom layer 11 is fixedly connected to the heel support plate 1 and the top of the forefoot support plate 6 respectively.

[0045] The ETPU inner bottom layer 11 is fixedly connected to the heel support plate 1 and the forefoot support plate 6 to reduce the possibility of slippage of the ETPU inner bottom layer 11.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A front and rear double-layer ETPU sole, comprising a heel support plate (1), characterized in that: A connecting component is provided on the outer side of the heel support plate (1). The connecting component includes an arch support block (2) fixedly connected to the outer side of the heel support plate (1). A sliding track (3) is provided inside the arch support block (2). An injection groove (4) is provided inside the arch support block (2). The sliding track (3) communicates with the injection groove (4). A connecting block (5) is slidably connected inside the sliding track (3). A forefoot support plate (6) is fixedly connected to the outer side of the connecting block (5).

2. A front and rear dual-layer ETPU sole according to claim 1, characterized in that: The bottom of the heel support plate (1) and the forefoot support plate (6) are provided with anti-slip components. The anti-slip components include anti-slip patterns (7) opened inside the heel support plate (1) and the forefoot support plate (6). The bottom of the heel support plate (1) and the forefoot support plate (6) are fixedly connected with anti-slip nails (8).

3. A front and rear dual-layer ETPU sole according to claim 1, characterized in that: The heel support plate (1) and the forefoot support plate (6) are provided with an installation component. The installation component includes two side frames (9) that are fixedly connected to the top of the heel support plate (1) and the forefoot support plate (6) respectively. Two soft segmented plates (10) are fixedly connected between the two side frames (9). The bottom of the soft segmented plates (10) is fixedly connected to the top of the forefoot support plate (6).

4. A front and rear dual-layer ETPU sole according to claim 3, characterized in that: The frame (9) is provided with an anti-vibration component, which includes an ETPU insole (11) fixedly connected to the inside of the frame (9). The ETPU insole (11) has ventilation holes (12) inside.

5. A front and back dual layer ETPU sole according to claim 3, characterized in that: The frame (9) is provided with an anti-pressure component, which includes a soft support layer (13) fixedly connected to the inside of the frame (9), and the soft support layer (13) has a hexagonal opening hole (14) inside.

6. A front and back dual layer ETPU sole according to claim 3, characterized in that: An auxiliary component is provided inside the frame (9). The auxiliary component includes a breathable and waterproof non-woven fabric layer (15) that is fixedly connected to the inside of the frame (9). The bottom of the breathable and waterproof non-woven fabric layer (15) is fixedly connected to the top of the soft support layer (13).

7. A front and back dual layer ETPU sole according to claim 5, characterized in that: The soft support layer (13) is fixedly connected to the inside of the frame (9) at both ends, and the bottom of the soft support layer (13) is fixedly connected to the top of the ETPU shoe inner bottom layer (11).

8. A front and back dual-layer ETPU sole according to claim 4, characterized in that: The bottom of the ETPU shoe inner bottom layer (11) is fixedly connected to the heel support plate (1) and the top of the forefoot support plate (6).