Waterproof shoes

By integrating the injection-molded layer with the midsole and bottom layer into a waterproof shoe design, combined with waterproof edging and a water-repellent membrane, the sealing and structural issues of waterproof shoes are solved, improving waterproof performance and comfort.

CN223715105UActive Publication Date: 2025-12-26XUCHANG RESHINE SHOES IND CO LTD
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Patent Information

Application Number
CN202520489617.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2025-12-26
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing waterproof shoes have poor waterproof performance, and the soles and uppers are prone to cracking, failing to form a sealed closure.

Method used

It features an integrated structure where the injection-molded layer and midsole are connected, combined with the edging of the waterproof upper and sole fabric, and uses waterproof welt and water-repellent membrane. The midsole includes an EVA layer to enhance comfort.

Benefits of technology

This achieves both a tight seal and robust structure in waterproof shoes, improving both waterproof performance and comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The waterproof shoe provided by the embodiment of the utility model comprises a vamp which comprises a waterproof layer; the sole cloth is located below the vamp, and the vamp is connected with the outer edge of the sole cloth; the shoe sole comprises an injection molding layer and a midsole layer, the injection molding layer is located between the shoe sole cloth and the midsole layer, and the injection molding layer is formed after liquid injection molding materials are subjected to injection molding and curing and is integrally connected with the shoe sole cloth and the midsole layer in an injection molding mode. Therefore, the waterproof shoe is waterproof, firm in structure and high in comfort.
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Description

TECHNICAL FIELD

[0001] The utility model relates to shoe technology field, concretely relates to a waterproof shoe. BACKGROUND

[0002] In the related art, the waterproof shoe usually comprises a waterproof shoe cover and a shoe sole arranged at the bottom of the waterproof shoe cover, wherein the waterproof shoe cover comprises a waterproof upper and a midsole cloth, the waterproof upper is usually composed of a waterproof film, an outer layer of upper pasted on the outer side of the waterproof film and an inner layer of insole pasted on the inner side of the waterproof film, the upper portion of the waterproof upper has a shoe opening, and the bottom of the waterproof upper is open; in the manufacturing process, the peripheral edge of the bottom of the waterproof upper is first sewn onto the upper surface of the midsole cloth by means of tucking; generally, a waterproof gasket is further pasted under the midsole and is pressed tightly by brushing glue, so as to obtain the waterproof shoe cover; finally, the shoe sole is pasted at the bottom of the waterproof shoe cover. In this waterproof shoe, the waterproof film of the waterproof upper and the waterproof gasket are always separated by a layer of non-waterproof outer layer of upper, the waterproof film and the waterproof gasket cannot directly contact to form a sealed closure, water can still penetrate into the shoe cavity, and the waterproof effect is poor and the shoe sole and the upper are prone to cracking. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the related art at least to some extent. To this end, the embodiment of the utility model provides a waterproof shoe.

[0004] The waterproof shoe of the embodiment of the utility model comprises:

[0005] An upper, wherein the upper comprises a waterproof layer;

[0006] A midsole cloth, wherein the midsole cloth is located below the upper, and the outer edge of the upper and the midsole cloth is connected;

[0007] A shoe sole, wherein the shoe sole comprises an injection molding layer and a midsole layer, the injection molding layer is located between the midsole cloth and the midsole layer, and the injection molding layer is formed by liquid injection molding material after injection molding solidification and is integrally connected with the midsole cloth and the midsole layer by injection molding.

[0008] In some embodiments, the waterproof shoe further comprises a connecting piece located between the injection molding layer and the midsole layer, the connecting piece is a loose structure with multiple pores, and the injection molding layer and the midsole layer are respectively partially filled in the pores of the connecting piece to realize firm connection of the injection molding layer and the midsole layer.

[0009] In some embodiments, the connecting piece is a fabric, the connecting piece is tightly connected with the upper surface of the midsole layer, and at least part of the lower surface of the injection molding layer is filled in the pores of the connecting piece.

[0010] In some embodiments, the injection molding layer and the midsole layer are made of different materials.

[0011] And / or, the midsole layer comprises at least one EVA layer, the midsole layer is filled in the interstice of the connecting piece by hot pressing, the injection molding layer is formed and filled in the interstice of the connecting piece after the PU injection molding material is solidified by injection molding, and the injection molding layer, the connecting piece and the EVA layer are sequentially connected from top to bottom.

[0012] In some embodiments, the thickness direction of the midsole layer is the up-down direction, the midsole layer comprises a plurality of EVA layers connected in the up-down direction, and the colors of two adjacent EVA layers in the up-down direction are different.

[0013] In some embodiments, the outer edge of the upper and the shoe sole cloth is connected by a welt, the welt has waterproofness, and the welt covers the outside of the gap between the upper and the shoe sole cloth.

[0014] In some embodiments, the shoe sole cloth is a loose structure, the upper surface of the injection molding layer is filled in the interstice of the shoe sole cloth and partially wraps the welt to form a sealed waterproof environment at the bottom of the upper.

[0015] In some embodiments, the welt is connected to the outer edge of the shoe sole cloth by a sewing line, the welt is connected to the lower edge of the upper by a sewing line, and a waterproof film covering the sewing hole is arranged on the welt.

[0016] In some embodiments, the upper comprises an upper layer and a lining layer, the upper layer is waterproof treated to form the waterproof layer, the lining layer is attached to the inner side of the upper layer, and a waterproof film is attached to the side of the lining layer facing the upper layer.

[0017] In some embodiments, the shoe sole further comprises an outsole, the outsole is arranged at the bottom of the midsole layer, and the outsole is made of wear-resistant material.

[0018] The waterproof shoe is waterproof, the injection molding layer is integrally connected with the shoe sole cloth and the midsole layer by injection molding, the bottom of the upper can be sealed by the injection molding layer, water cannot penetrate into the shoe cavity from the shoe sole cloth, the outer edge of the upper and the shoe sole cloth is connected by the welt with waterproofness, the waterproof film covering the sewing hole is arranged on the welt, the upper comprises the waterproof layer, and thus the waterproof shoe is waterproof. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the waterproof shoe according to the embodiment of the present utility model.

[0020] Figure 2 is a sectional view of a waterproof shoe according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic view of a midsole layer and a connecting piece according to an embodiment of the present utility model.

[0022] Reference signs:

[0023] 1, upper, 11, upper layer, 12, lining layer;

[0024] 2, insole cloth, 21, along the strip;

[0025] 3, sole, 31, injection molding layer, 32, midsole layer, 321, EVA layer, 322, connecting piece. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and cannot be understood as a limitation of the present utility model.

[0027] The waterproof shoe according to an embodiment of the present utility model is described below with reference to the accompanying drawings. As shown in the drawings, the waterproof shoe according to an embodiment of the present utility model comprises an upper 1, an insole cloth 2 and a sole 3. Figures 1 to 3

[0028] The upper 1 comprises a waterproof layer, and the upper 1 is waterproof by coating or spraying a waterproof material on the upper to form a waterproof layer to prevent water from penetrating, so that the upper 1 can be waterproofed. In other embodiments, the upper 1 can also be made of waterproof leather or fabric.

[0029] The insole cloth 2 is located below the upper 1, and the outer edge of the upper 1 is connected to the insole cloth 2. The sole 3 comprises an injection molding layer 31 and a midsole layer 32, the injection molding layer 31 is located between the insole cloth 2 and the midsole layer 32, and the injection molding layer 31 is formed by solidification of liquid injection molding material and is integrally connected with the insole cloth 2 and the midsole layer 32.

[0030] ​Specifically, during the curing and forming process of the injection molding layer 31, the prefabricated midsole layer 32 is first placed in the mold, the upper 1 with the sole cloth 2 is sleeved on the shoe last, and then the shoe last with the upper 1 is abutted on the mold. The space between the sole cloth 2 and the midsole layer 32 is reserved for the forming cavity of the injection molding layer 31, and the liquid injection material is injected into the forming cavity. During the injection molding process, the injection material fully fills the space between the sole cloth 2 and the midsole layer 32 and fully contacts the surfaces opposite to the sole cloth 2 and the midsole layer 32. The part of the adhesive liquid injection material contacts the bottom of the sole cloth 2, and the space at the bottom of the sole cloth 2 is penetrated and filled by the liquid injection material. The injection molding layer 31 after curing and forming is firmly adhered to the connection part of the sole cloth 2, realizing the injection molding integrated connection of the injection molding layer 31 and the sole cloth 2. The injection molding layer 31 is waterproof, and the injection molding layer 31 is integrally connected with the sole cloth 2 through the injection molding, which can seal the bottom of the upper 1. Water cannot penetrate into the shoe cavity from the sole cloth 2, so that the waterproof shoes can be waterproofed conveniently. The injection molding layer 31 is integrally connected with the sole cloth 2, the structure is firm, and it is not easy to open glue and crack. The part of the adhesive liquid injection material contacts the upper surface of the midsole layer 32, and the lower surface of the injection molding layer 31 is connected with the midsole layer 32, so that the midsole layer 32 can support the injection molding layer 31, so as to increase the comfort of the shoe sole 3.

[0031] Therefore, the waterproof shoes according to the embodiments of the utility model are waterproof, firm in structure and high in comfort.

[0032] As shown in Figure 2 and Figure 3 shown, in some embodiments, the waterproof shoes further comprise a connecting piece 322 located between the injection molding layer 31 and the midsole layer 32. The connecting piece 322 is a loose structure with multiple pores, and the injection molding layer 31 and the midsole layer 32 are respectively partially filled in the pores of the connecting piece 322 to realize the firm connection of the injection molding layer 31 and the midsole layer 32. Specifically, at least part of the bottom of the injection molding layer 31 can penetrate and fill the pores on the upper surface of the connecting piece 322 during the forming process, so as to increase the connection area of the injection molding layer 31 and the connecting piece 322, thereby realizing the firm connection of the injection molding layer 31 and the connecting piece 322. Similarly, at least part of the upper surface of the midsole layer 32 can penetrate and fill the pores on the lower surface of the connecting piece 322, so as to be firmly connected with the connecting piece 322, and then the injection molding layer 31 and the midsole layer 32 are firmly connected.

[0033] As shown in Figure 3 shown, in some embodiments, the connecting piece 322 is fixed on the upper surface of the midsole layer 32, and the connecting piece 322 is a mesh-like woven fabric. The mesh-like woven fabric is a mesh structure material formed by crossing and weaving fibers or wires, which has through holes penetrating through the thickness direction, and the injection material can be connected with the woven fabric through surface adhesion, or can be filled in the mesh-like through holes to be connected with the midsole layer, thereby realizing the firm connection of the injection molding layer 31 and the midsole layer 32 as a whole.

[0034] In some embodiments, the connector 322 is a fabric, the connector 322 is fastened to the upper surface of the midsole 32, and at least part of the lower surface of the injection-molded layer 31 fills the pores of the connector 322. Specifically, the fabric is a material woven from fibers, and the fabric has many pores. By using the fabric as the connector 322, the injection-molded layer 31 and the midsole 32 can be filled in the pores of the upper surface and the lower surface of the fabric, respectively, so that the injection-molded layer 31 and the midsole 32 are firmly connected.

[0035] In some embodiments, the injection-molded layer 31 and the midsole 32 are made of different materials. In this way, the midsole 32 can be made of a suitable shock-absorbing material, and the injection-molded layer 31 can be made of a lightweight material to support the midsole 32, so as to increase the comfort of the shoe sole 3.

[0036] As shown in FIG. 1, Figure 1 In some embodiments, the midsole 32 includes at least one EVA layer 321. The midsole 32 is filled in the pores of the connector 322 by hot pressing, and the injection-molded layer 31 is formed and filled in the pores of the connector 322 after being cured by injection molding. The injection-molded layer 31, the connector 322, and the EVA layer 321 are sequentially connected from top to bottom.

[0037] Specifically, the PU (polyurethane) injection-molded material is a high-performance thermoplastic material. By using the PU (polyurethane) injection-molded material, the injection-molded layer 31 can be injection-molded, and the injection-molded layer 31 has good elasticity and wear resistance to support the human foot. The EVA (ethylene-vinyl acetate copolymer) layer is generally lightweight, making the shoe more flexible and easy to wear; has good cushioning performance, can reduce foot pressure, and provide a more comfortable walking experience; has high wear resistance, can prevent wear and tear; has good anti-slip performance, can provide better grip, and is used to provide lightweight, cushioning, shock absorption, waterproof, and thermal insulation functions. By using the EVA layer 321 as at least part of the midsole 32, the shock-absorbing performance of the shoe sole 3 can be improved, and the waterproof shoe is lightweight and comfortable. For example, the midsole 32 includes one or more EVA layers 321.

[0038] In some embodiments, the thickness direction of the midsole 32 is the up-down direction, the midsole 32 includes a plurality of EVA layers 321 connected in the up-down direction, and the colors of two adjacent EVA layers 321 in the up-down direction are different. In this way, the color diversity of the shoe sole 3 can be increased, so that the waterproof shoe is beautiful, and the product competitiveness is increased.

[0039] As shown in FIG. 1, Figure 1 and Figure 2As shown, in some embodiments, the outer edges of the upper 1 and the sole fabric 2 are connected by a welt 21. The welt 21 is waterproof and covers the outside of the gap between the upper 1 and the sole fabric 2. The welt 21 is waterproof and can be made of waterproof material. By wrapping the outer edges of the upper 1 and the sole fabric 2 with the welt 21, the welt 21 itself is waterproof, which can effectively prevent water from entering the shoe cavity from the gap between the outer edges of the upper 1 and the sole fabric 2. Thus, the upper 1 and the sole fabric 2 can be connected by the welt 21, and the welt 21 can cover the gap between the upper 1 and the sole fabric 2 to increase the waterproofness of the waterproof shoe.

[0040] In some embodiments, the sole fabric 2 has a loose structure, and the upper surface of the injection-molded layer 31 fills the pores of the sole fabric 2 and partially wraps the welt 21. The injection-molded layer 31 seals the bottom of the upper 1, the sole fabric 2, and the welt 21, thereby forming a sealed and waterproof environment at the bottom of the upper 1. Specifically, the upper surface of the injection-molded layer 31 fills the pores of the lower surface of the sole fabric 2, and the outer edge of the injection-molded layer 31 wraps the lower part of the welt 21. This allows the injection-molded layer 31 to seal the sole fabric 2 and the gap between the welt 21 and the sole fabric 2, thereby forming a sealed and waterproof environment at the bottom of the upper 1 and improving waterproofness.

[0041] In some embodiments, the welt 21 is connected to the outer edge of the sole fabric 2 by stitching, and the welt 21 is also connected to the lower edge of the upper 1 by stitching. A water-repellent membrane covering the stitching holes is provided on the welt 21. Specifically, after the welt 21 is connected to the upper 1 and the sole fabric 2 by stitching, the water-repellent membrane covers the stitching holes, thereby sealing the gaps in the stitching holes and further increasing waterproofness. For example, the water-repellent membrane is a waterproof adhesive.

[0042] like Figure 1 As shown, in some embodiments, the shoe upper 1 includes an upper layer 11 and an inner lining layer 12. The upper layer 11 is waterproofed, and the inner lining layer 12 is attached to the inside of the upper layer 11, with a waterproof membrane attached to the side of the inner lining layer 12 facing the upper layer 11. This allows both the upper layer 11 and the inner lining layer 12 to be waterproof, thereby further increasing the waterproofness of the shoe upper 1. For example, the upper layer 11 may be one of a fur layer, a suede layer, or a fabric layer, and may be waterproofed.

[0043] In some embodiments, the sole 3 further includes an outsole disposed at the bottom of the midsole 32, and the outsole is made of an abrasion-resistant material. The outsole reduces wear on the sole 3, thereby increasing its lifespan. For example, the outsole is a rubber outsole.

[0044] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0045] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0046] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0047] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0048] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0049] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A waterproof shoe characterized by comprising: The utility model relates to a waterproof shoe, which comprises: a shoe upper, the shoe upper comprising a waterproof layer; a shoe sole cloth, the shoe sole cloth being located below the shoe upper, the outer edge of the shoe upper and the shoe sole cloth being connected; a shoe sole, the shoe sole comprising an injection molding layer and a midsole layer, the injection molding layer being located between the shoe sole cloth and the midsole layer, the injection molding layer being formed by curing liquid injection molding material and integrally connected with the shoe sole cloth and the midsole layer.

2. The waterproof shoe according to claim 1, wherein The waterproof shoe further comprises a connecting piece located between the injection molding layer and the midsole layer, the connecting piece being a loose structure with multiple pores, the injection molding layer and the midsole layer being partially filled in the pores of the connecting piece to achieve firm connection of the injection molding layer and the midsole layer.

3. The waterproof shoe according to claim 2, wherein The connecting piece is a fabric, the connecting piece being tightly connected with the upper surface of the midsole layer, and at least part of the lower surface of the injection molding layer being filled in the pores of the connecting piece.

4. The waterproof shoe according to claim 2, wherein The injection molding layer and the midsole layer are made of different materials. The midsole layer comprises at least one EVA layer, the midsole layer being filled in the pores of the connecting piece through hot pressing, the injection molding layer being formed by curing PU injection molding material and filled in the pores of the connecting piece, and the injection molding layer, the connecting piece and the EVA layer being sequentially connected from top to bottom.

5. The waterproof shoe according to claim 2, wherein The thickness direction of the midsole layer is the up-down direction, the midsole layer comprising multiple EVA layers connected in the up-down direction, wherein the colors of two adjacent EVA layers in the up-down direction are different.

6. The waterproof shoe according to claim 1, wherein The outer edge of the shoe upper and the shoe sole cloth are connected through a welt, the welt having waterproof property, and the welt covering the outside of the gap between the shoe upper and the shoe sole cloth.

7. The waterproof shoe according to claim 6, wherein The shoe sole cloth is a loose structure, the upper surface of the injection molding layer being filled in the pores of the shoe sole cloth and partially wrapping the welt to form a sealed waterproof environment at the bottom of the shoe upper.

8. The waterproof shoe according to claim 6, wherein The welt is connected with the outer edge of the shoe sole cloth through a sewing line, the welt being connected with the lower edge of the shoe upper through a sewing line, and a waterproof film covering the sewing hole being arranged on the welt.

9. The waterproof shoe according to claim 1, wherein The shoe upper comprises a shoe upper layer and an inner layer, the shoe upper layer being waterproof treated to form the waterproof layer, the inner layer being arranged on the inner side of the shoe upper layer, and a waterproof film being attached to the side of the inner layer facing the shoe upper layer.

10. The waterproof shoe according to any one of claims 1 to 9, wherein The shoe sole further comprises an outsole, the outsole being arranged at the bottom of the midsole layer, and the outsole being made of wear-resistant material.