A sole structure with a waterproof membrane

By integrating a waterproof membrane, a ring-shaped storage space, and a zipper design into the sole structure, the problem of waterproofing in rainy weather and water accumulation on the ground is solved, achieving a comfortable, beautiful, and convenient waterproof effect.

CN224330459UActive Publication Date: 2026-06-09李昂

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
李昂
Filing Date
2025-08-22
Publication Date
2026-06-09

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Abstract

The utility model discloses relate to the footwear field, disclose a kind of shoe sole structure with waterproof membrane, including shoe sole, decorative strip, ring zipper, annular storage space, waterproof membrane, tightening rope, drain, can be adapted to a variety of materials, a variety of types, a variety of specifications, vamp is produced with waterproof function shoes, shoe sole side is equipped with three layers structure, along annular from outside to inside respectively as: decorative strip, ring zipper, annular storage space;Waterproof membrane is installed in annular storage space, annular storage space outside side has ring zipper for opening and closing, after pulling open waterproof membrane to suitable position, pull out tightening rope and bind, shoes will have waterproof function, the comfort of shoes itself, slip resistance is kept, waterproof membrane can be curled and stored back annular storage space, close ring zipper and seal decorative strip shoes recovery normal, residual water is discharged from drain, easy to operate, can solve the problem of shoes water in rainy day and the problem of ground water needs to wade.
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Description

Technical Field

[0001] This utility model patent relates to the field of footwear technology, and in particular to a sole structure with a waterproof membrane, which is suitable for adapting to the production of shoes that can be worn daily, prevent water from entering the shoes in rainy weather or in shallow water areas, and allow wading. Background Technology

[0002] In daily life, rainy days, especially heavy rain or storms, are a major weather factor that hinders people's travel. On rainy days, people are easily exposed to water on the ground or splashed by rainwater, causing their shoes to get wet, making them uncomfortable or even sick. Waterproofing shoes is a difficult problem to solve. Wearing rain boots is not comfortable and looks bad. Breathability and waterproofing are often two conflicting technical indicators that are difficult to balance, especially since shoes with good breathability are often poor in waterproofing. Water getting into shoes and getting stained on rainy days is a major inconvenience in life.

[0003] To address the aforementioned issues, existing technologies include shoe covers that can be directly slipped over shoes and shoes with rainproof shoe covers. However, these structures still have limitations in terms of safety, convenience, and comfort. Shoe covers typically have poor anti-slip properties, limited fit, and the soles are prone to tearing and leaking, making them inconvenient to carry and store.

[0004] For example, CN201920855886.6 discloses a shoe with a rainproof shoe cover, including a shoe and a shoe cover. The shoe has a sole and an upper. The outer side wall of the sole is recessed with an installation groove that surrounds the sole circumferentially. The bottom surface of the shoe cover is open. The lower edge of the shoe cover is installed in the installation groove by a self-sealing strip with ribs that surround the sole circumferentially. The installation groove is also fitted with a tightening ring that presses the lower edge of the shoe cover into the installation groove. The top surface of the sole is recessed downward at the area corresponding to the heel of the human foot to provide a receiving cavity.

[0005] The aforementioned (CN201920855886.6) describes a shoe with a rainproof shoe cover. The shoe cover is placed at the heel of the sole. When in use, the shoe cover is removed and secured using the groove in the sole and the tightening ring. This design has limitations. Hiding the shoe cover at the heel is not comfortable, especially when the shoe cover is removed, a cavity will appear at the heel, which is uncomfortable. Removing the shoe cover requires taking off the shoes, which can easily cause odors and other embarrassing situations. The shoe cover is cumbersome to install, and it is not easy to operate in standing, sitting, or squatting positions. There is little free space for fingers to insert into the groove in the sole, and the self-sealing strip inside the groove is difficult to install. Its sealing structure may not be airtight, and there may be problems such as tearing of the shoe cover during the tightening process.

[0006] Therefore, it is necessary to design a waterproof sole structure that can be combined with various uppers to produce waterproof, safe, comfortable, beautiful and convenient shoes to meet the needs of keeping shoes dry in rainy weather, keeping the uppers clean, and occasionally wading through water in puddles or shallow water areas. Summary of the Invention

[0007] This utility model relates to a shoe sole structure with a waterproof membrane, which can be combined with various shoe uppers to produce shoes, thereby solving the problem that most existing shoes have insufficient waterproof performance in rainy weather and cannot be used for wading when the ground is flooded.

[0008] To achieve the above objectives, this utility model discloses a shoe sole structure with a waterproof membrane, including a shoe sole that can be adapted to produce shoes with an upper; the side of the shoe sole has a three-layer structure, which, from the outside to the inside along the circumferential direction, are: a decorative strip, a ring-shaped zipper, and a ring-shaped storage space; the ring-shaped storage space is a continuous and closed-loop recessed area, in which a waterproof membrane is installed and stored, one end of the waterproof membrane is a ring-shaped adhesive edge, which is attached to the inner wall of the ring-shaped storage space by means of (e.g., heat-pressing adhesive, glue adhesive), and the other end is curled to form a curled end ring structure, and a tightening rope is threaded inside the curled end ring structure; a ring-shaped zipper is installed on the outside of the ring-shaped storage space for opening and closing; a decorative strip is installed on the outside of the ring-shaped zipper to cover the ring-shaped zipper for decoration and protection; the side of the shoe sole has multiple drainage outlets that open through the ring-shaped storage space and are distributed circumferentially.

[0009] As a preferred embodiment of this utility model, the annular storage space has a U-shaped, C-shaped, or Ω (Greek letter) cross-section with the opening facing outwards. Its internal space can install and store a waterproof membrane, and the inner side is arc-shaped, which can reduce the damage caused by stress concentration during movement and increase service life.

[0010] As a preferred embodiment of this utility model, the outer side of the annular storage space has an upper platform and a lower platform for mounting an annular zipper.

[0011] As a preferred embodiment of this utility model, the outer side of the upper and lower platforms of the annular storage space also includes a decorative strip holder and an annular card holder for installing decorative strips.

[0012] As a preferred embodiment of this utility model, the waterproof membrane is a bottomless barrel-shaped structure with a ring-shaped adhesive edge at one end and a curled ring structure at the other end, or a bottomless barrel-shaped structure with a curled ring structure at one end.

[0013] As a preferred embodiment of this utility model, the annular adhesive edge is an elastic cushioning material (such as polyurethane elastomer, silicone rubber, latex, or nitrile rubber), which is adhered to the inner wall of the annular storage space. Using an elastic cushioning material for transitional adhesion helps to reduce tearing due to excessive tearing during use.

[0014] As a preferred embodiment of this utility model, the end-curled annular structure and the waterproof membrane are an integral structure, which is formed by reversing the end to form a structure with a circumferential hole in the middle, through which a tightening rope is threaded. The end-curled annular structure is designed to be disconnected or has a through hole for the tightening rope to be pulled out.

[0015] As a preferred embodiment of this utility model, the tightening rope is looped and threaded inside the coiled loop structure at the end. The circumference is the same. The joint is connected by heat fusion, adhesive bonding or mechanical connection. The joint is the same thickness as the rope body, which is beneficial to the uniformity of the coiling when the tightening rope is pulled out and when the waterproof membrane is stored.

[0016] As a preferred embodiment of this utility model, the ring zipper can be closed and opened in a ring direction. When fully opened, the zipper pull of the ring zipper remains connected with one part of the zipper tape while disengaging from the other part of the zipper tape, and the upper and lower zipper tapes are completely separated.

[0017] As a preferred embodiment of this utility model, the drainage outlet is distributed circumferentially along the side of the shoe sole and opens up a ring-shaped storage space, the cross-sectional shape of which is rectangular, semi-circular, circular, semi-elliptical or elliptical.

[0018] As a preferred embodiment of this utility model, the decorative strip is a ring-shaped strip structure made of elastic material (such as polyurethane elastomer, silicone rubber, latex, nitrile rubber). One end is a connecting end, which is attached to the decorative strip seat along the side of the shoe sole by means of (such as heat pressing or adhesive bonding). The other end is a locking end, which has a spherical ring-shaped protrusion structure ball head locking ring that locks into the ring-shaped locking seat. In this way, the component is installed stably and will not fall off during daily activities, and dust and dirt will not easily enter the internal space covered by it.

[0019] As a preferred embodiment of this utility model, the decorative strip has a smooth outer surface, or has patterns or designs, or has patterns or designs that smoothly transition with the patterns or designs on the side of the shoe sole, together forming a complete decorative texture.

[0020] Compared to existing technologies, the advantages of this invention are: A sole structure with a waterproof membrane allows for the production of waterproof shoes that can be adapted to different materials and styles of uppers. The sole has a ring-shaped storage space on its side, which is closed and opened by a ring-shaped zipper. A waterproof membrane is installed inside this space, and the sole and the waterproof membrane form a sealed unit. In rainy weather or when wading, the decorative strip on the outside of the ring-shaped zipper can be flipped open to open the zipper, unfold the waterproof membrane, pull it to the appropriate position, and then pull out the drawstring to secure it. The entire shoe will then function like a rain boot, providing waterproof protection. Yes, the shoes retain their comfort and slip resistance, solving the problem of water getting into the shoes when it rains, and allowing for wading through puddles. When waterproofing is not needed, simply roll up the waterproof membrane and place it in the ring-shaped storage space, close the ring zipper, and then flip the decorative strip back over to cover the ring zipper. The shoes will then return to their normal shape. If any water remains, most of it will drain out through the drain, and the rest will evaporate slowly. The unfolding and storage of the waterproof membrane is simple, and the shoes can be worn daily. They are aesthetically pleasing and can withstand rain and puddles, providing great convenience for daily outings. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram and exploded view of a shoe sole structure with a waterproof membrane proposed in this utility model.

[0022] Figure 2 yes Figure 1 A side view of a shoe sole structure with a waterproof membrane.

[0023] Figure 3 yes Figure 2 Section AA and section BB, as well as enlarged detail views and exploded views of the enlarged section AA.

[0024] Figure 4 yes Figure 2 CC section and DD section.

[0025] Figure 5 This utility model discloses a shoe sole structure with a waterproof membrane, including a schematic diagram of the waterproof membrane in its unfolded state, an enlarged view of its annular storage space, and an enlarged view of its end curled annular structure.

[0026] Figure 6 It is a diagram showing the end-curled loop structure and the tightening rope pulled out from the end-curled loop structure and tied.

[0027] Explanation of reference numerals in the attached drawings: sole (1); ring-shaped storage space (2); upper platform (201); lower platform (202); decorative strip seat (203); ring-shaped card holder (204); ring-shaped zipper (3); upper zipper strap (301); lower zipper strap (302); zipper pull (303); drain outlet (4); waterproof membrane (5); ring-shaped adhesive edge (501); end curled ring structure (502); tightening rope (6); arch support recess (7); decorative strip (8); connecting end (801); ball head retaining ring (802); upper (9). Detailed Implementation

[0028] The embodiments of this application will be described in detail below, in conjunction with the accompanying drawings. The purpose of the drawings is to enable people to intuitively and vividly understand each technical feature and overall technical solution of this utility model to supplement the description of the textual part of the specification. They are intended to explain this application and should not be construed as limiting this application.

[0029] To address the problems raised in the background above, this utility model provides a shoe sole structure with a waterproof membrane. The following description, in conjunction with the accompanying drawings, illustrates one embodiment of this utility model with a waterproof membrane. The described embodiments are merely some, not all, of this utility model. Details are as follows:

[0030] This utility model embodiment can be based on a sole structure with a waterproof membrane to enable the production of waterproof shoes by adapting this structure to uppers of different materials and styles; please refer to Figures 1-6 A sole structure with a waterproof membrane includes a sole (1); an annular storage space (2); an upper platform (201); a lower platform (202); a decorative strip seat (203); an annular card seat (204); an annular zipper (3); an upper zipper strap (301); a lower zipper strap (302); a zipper pull (303); a drain outlet (4); a waterproof membrane (5); an annular adhesive edge (501); an end curled annular structure (502); a drawstring (6); an arch support recess (7); a decorative strip (8); a connecting end (801); a ball head retaining ring (802); and an upper (9). The upper (9) shown in the figure is for ease of understanding.

[0031] Please see Figures 1-6The sole (1) is made of a non-permeable material, which is one or more of polyurethane, rubber, polyvinyl chloride, polyethylene, thermoplastic elastomer, and ethylene-vinyl acetate copolymer. It can be adapted to different materials (including but not limited to fabrics, leather, and synthetic leather) and different styles (including but not limited to sports shoes, casual shoes, and hiking shoes) of uppers. It is fixed to the upper by conventional methods such as gluing, sewing, or snap-fitting to produce shoes. The sole (1) has a three-layer structure on the side, which are arranged from the outside to the inside along the circumference: decorative strip (8 ), a ring zipper (3), a ring storage space (2); the ring storage space (2) is a continuous and closed-loop recessed area integrated with the sole (1) for installing and storing the waterproof membrane (5); a ring zipper (3) is installed on the outside of the ring storage space (2) for opening and closing the storage space; a decorative strip (8) covering the ring zipper (3) is installed circumferentially along the side of the sole on the outside of the ring zipper (3) for protecting the ring zipper (3) and for decoration; multiple drainage holes (4) are distributed on the side of the sole (1) for drainage.

[0032] like Figure 3 As shown, the outer side of the annular storage space (2) has an upper platform (201) and a lower platform (202) for installing the annular zipper (3), and a decorative strip seat (203) and an annular card seat (204) for installing the decorative strip (8); its internal space can install and store the waterproof membrane (5).

[0033] like Figure 3 , Figure 4 As shown, an annular zipper (3) for opening and closing the space is installed on the outside of the annular storage space (2). The zipper structure is well known and will not be described in detail. The annular zipper (3) consists of an upper zipper tape (301), a lower zipper tape (302), and a zipper pull (303). The upper zipper tape (301) is installed on the upper platform (201), and the lower zipper tape (302) is installed on the lower platform (202). When installing, the zipper pull (303) is positioned at the arch support recess (7). This area is usually concave and not easily bumped, which is beneficial for protection.

[0034] like Figure 3 As shown, there is a decorative strip (8) on the outside of the ring zipper (3) that is installed circumferentially along the side of the sole to cover the ring zipper (3). The connecting end (801) of the decorative strip (8) is installed on the decorative strip seat (203), and its ball head retainer (802) is inserted into the ring hole retainer (204). This can protect the ring zipper (3) and the side of the decorative sole, and at the same time, it is not easy for dirt to enter the space it covers.

[0035] like Figure 3 As shown, a rolled-up waterproof membrane (5) is installed and stored inside the annular storage space (2). This membrane is stored here when waterproofing is not required. Figure 5As shown, the waterproof membrane (5) unfolds into a ring-shaped, bottomless barrel structure, with one end being a ring-shaped adhesive edge (501) and the other end being a curled-end ring structure (502). The waterproof membrane (5) is seamlessly bonded to the sole (1) through the ring-shaped adhesive edge (501) to achieve a sealing and waterproof effect. The other end is curled to form a curled-end ring structure (502) and broken at one point (e.g., Figure 6 As shown), insert a binding rope (6) of the same length as its circumference, connect the two ends to form a loop, and the joint is the same thickness as the rope, so as to facilitate its pull-out and ensure the uniformity of the rolled waterproof membrane (5) when it is folded up with it as the axis.

[0036] like Figures 1-4 As shown, the sole (1) has multiple drainage holes (4) arranged in a ring on the side. The drainage holes (4) open up the ring-shaped storage space (2) to drain the water that enters the area and to serve as a evaporation channel for any residual water that has not been drained.

[0037] When shoes need to be waterproof due to rain or water accumulation on the ground, pry out the ball-head buckle (802) of the decorative strip (8) to separate it from the ring seat (204), flip up the decorative strip (8) to expose the ring zipper (3) it covers, pull the ring zipper (3) all the way around, the zipper pull (303) will remain on the lower zipper strap (302), at this time the upper zipper strap (301) and the lower zipper strap (302) are completely separated, exposing the ring storage space (2), at this time the waterproof membrane (5) can be pulled out from the ring storage space (2) and fully unfolded, and the tightening rope (6) is pulled out at the break of the end curled ring structure (502) to make the end curled ring structure (502) (502) 502) After the folds are tucked into the appropriate position, they are tied tightly. In this way, the shoe surface (9) will be wrapped by the waterproof membrane (5). The entire shoe up to the end of the waterproof membrane (5) and the rolled ring structure (502) will be waterproof like a rain boot. Conversely, when waterproofing is not needed, store the waterproof membrane (5). When storing and rolling, tighten the rope (6) as a rolling shaft. After rolling the waterproof membrane (5), put it into the ring-shaped storage space (2) and then close the ring zipper (3). Finally, flip the decorative strip (8) back and insert the ball head buckle (802) into the ring hole seat (204). The storage is complete and the shoe returns to normal. If there is water remaining in the ring-shaped storage space (2), it will be drained from the drain (4).

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made to this embodiment within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0039] It should be noted that no entity or individual may implement this utility model without the permission of the patentee, including but not limited to modifying, imitating, copying, or substituting concepts (such as changing the name of the technical feature but substantially using the same technical means, or applying it to the same technical field with only non-substantial changes). All such acts fall within the protection scope of this utility model, and the patentee will pursue their legal liability in accordance with the law.

Claims

1. A shoe sole structure with a waterproof membrane, characterized in that: The sole (1) is adapted to the upper for shoe production; the side of the sole (1) has a three-layer structure, which are: decorative strip (8), ring zipper (3), and ring storage space (2) from the outside to the inside along the circumference; the ring storage space (2) is a continuous and closed-loop recessed area, in which a waterproof membrane (5) is installed and stored, and one end of the waterproof membrane (5) is a ring-shaped adhesive edge (501), which is attached to the ring storage space (2) by hot pressing or glue. The inner wall of the shoe sole (1) has one end curled to form a curled ring structure (502), and a binding rope (6) is threaded through the curled ring structure (502); a ring zipper (3) is installed on the outside of the ring storage space (2) for opening and closing; a decorative strip (8) is installed on the outside of the ring zipper (3) for decoration and protection; and multiple drainage outlets (4) that open the ring storage space (2) are distributed circumferentially on the side of the shoe sole (1).

2. The shoe sole structure with a waterproof membrane according to claim 1, characterized in that: The annular storage space (2) has a U-shaped, C-shaped or Ω-shaped cross section with the opening facing outwards, and its internal space can install and store the waterproof membrane (5).

3. The shoe sole structure with a waterproof membrane according to claim 2, characterized in that: The annular storage space (2) has an upper platform (201) and a lower platform (202) on the outside of which the annular zipper (3) is installed.

4. The sole structure with a waterproof membrane according to claim 3, characterized in that: The outer side of the outer upper platform (201) and lower platform (202) of the annular storage space (2) also includes a decorative strip seat (203) for installing decorative strips (8) and an annular card seat (204).

5. The shoe sole structure with a waterproof membrane according to claim 1, characterized in that: The waterproof membrane (5) is a bottomless barrel-shaped structure with a ring-shaped adhesive edge (501) at one end and a curled ring structure (502) at the other end, or a bottomless barrel-shaped structure with a curled ring structure (502) at one end.

6. The shoe sole structure with a waterproof membrane according to claim 5, characterized in that: The annular adhesive edge (501) is a polyurethane elastomer, silicone rubber, latex or nitrile rubber elastic cushioning material, which is adhered to the inner wall of the annular storage space (2).

7. The sole structure with a waterproof membrane according to claim 5, characterized in that: The end-curled ring structure (502) and the waterproof membrane (5) are an integral structure, which is formed by reversing the end to form a structure with a ring hole in the middle, through which a tightening rope (6) is inserted. The end-curled ring structure (502) is designed to be disconnected or has a through hole for the tightening rope (6) to be pulled out.

8. The sole structure with a waterproof membrane according to claim 7, characterized in that: The binding rope (6) is looped and threaded through the end coiled loop structure (502), with the same circumference.

9. The shoe sole structure with a waterproof membrane according to claim 1, characterized in that: The ring zipper (3) can be closed and opened in a ring direction. When fully opened, the zipper pull (303) of the ring zipper (3) remains connected with one part of the zipper tape and is detached from the other part of the zipper tape, and the upper zipper tape (301) and the lower zipper tape (302) are completely separated.

10. A shoe sole structure with a waterproof membrane according to claim 1, characterized in that: The drain outlet (4) is distributed circumferentially along the side of the sole (1) and opens up the annular storage space (2), the cross-sectional shape of which is rectangular, semi-circular, circular, semi-elliptical or elliptical.

11. A shoe sole structure with a waterproof membrane according to claim 1, characterized in that: The decorative strip (8) is a ring-shaped strip structure made of polyurethane elastomer, silicone rubber, latex or nitrile rubber elastic material. One end is the connecting end (801), which is installed on the decorative strip seat (203) along the side of the shoe sole by hot pressing or glue. The other end is the locking end, which has a spherical ring-shaped protrusion structure ball head locking ring (802) that is locked into the ring hole seat (204).

12. A shoe sole structure with a waterproof membrane according to claim 11, characterized in that: The decorative strip (8) has a smooth outer surface, or has patterns or designs, or has patterns or designs that smoothly transition with the patterns or designs on the side of the sole, together forming a complete decorative texture.