Slippers capable of preventing water from flowing back
By incorporating a removable pad and staggered drainage channels, drainage channels, and drainage holes inside the sole of the slippers, the problem of water backflow in wet environments is solved, resulting in better waterproof performance and user comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-06
AI Technical Summary
Existing slippers are prone to water backflow through the drainage holes in wet environments, affecting comfort and functionality.
The slippers feature a removable pad inside the sole, with staggered drainage channels, drainage channels, and drainage holes. Combined with the limiting structure of the sole and pad, this ensures smooth drainage of water and prevents backflow.
It effectively prevents water backflow, improves the waterproof performance and comfort of slippers, enhances stability and grip, and ensures safety and comfort in wet and slippery environments.
Smart Images

Figure CN223968720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of footwear technology, and in particular to a slipper that prevents water from flowing back. Background Technology
[0002] Slippers, a common type of footwear in daily life, are widely used in homes, bathrooms, swimming pools, and other places, primarily to provide comfortable foot support and protection. Slippers typically consist of a sole, upper, and other auxiliary components. The sole is usually made of rubber, plastic, or EVA material, providing a certain degree of slip resistance to ensure the wearer's safety when walking in slippery environments. Their main function is to provide users with a convenient wearing experience and effectively protect the feet from external environmental damage.
[0003] To improve the suitability of slippers in wet and slippery environments, many slippers in the prior art have multiple through-holes designed in their insole. The function of these drainage holes is to help water accumulate inside the shoe in a timely manner, preventing moisture from accumulating inside the slipper, thereby providing better comfort and dryness.
[0004] However, in practical use, the existing drainage hole design still has some shortcomings, especially when there is a lot of standing water on the ground. The drainage holes of the slippers may actually become channels for water to flow back. Specifically, if the water on the ground is deep, the drainage holes inside the slippers may not be able to drain the water in time, and water may even seep into the slippers from the outside ground through the drainage holes. This will not only cause discomfort to the wearer, but also cause the shoe's drainage function to fail, affecting normal use.
[0005] In view of this, the inventor conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content
[0006] This invention provides a slipper that prevents water backflow, aiming to solve the problem that existing slippers' drainage holes cannot effectively drain water in a waterlogged environment, easily causing water to flow back into the shoe.
[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0008] A slipper designed to prevent water backflow includes a sole and an upper. The sole includes an insole and an outsole. The insole has a recessed groove containing a removable pad. The top surface of the pad has multiple spaced-apart first drainage holes, and the bottom surface has a vertically arranged first guide channel and multiple horizontally spaced first drainage channels communicating with the first guide channel. The multiple first drainage holes correspondingly penetrate the first guide channel and the first drainage channel. The bottom wall of the recess has a vertically arranged second guide channel. Multiple spaced-apart second drainage channels are symmetrically arranged on both sides of the second guide channel and communicate with it. The bottom walls of the second guide channel and the second drainage channel are each permeated with multiple spaced-apart second drainage holes. The first guide channel and the first drainage channel are staggered with the second guide channel and the second drainage channel.
[0009] Furthermore, the aforementioned first drainage holes and the aforementioned second drainage holes are arranged in a staggered manner.
[0010] Furthermore, the first drainage channel and the second drainage channel mentioned above can be any one of arrow-shaped, semi-circular, or straight-line shaped.
[0011] Furthermore, the front and rear sides of the aforementioned groove are both recessed with a first limiting groove, and the front and rear sides of the aforementioned pad are both protruded with a first limiting protrusion for engaging with the aforementioned first limiting groove.
[0012] Furthermore, the top surface of the aforementioned pad is densely covered with several anti-slip protrusions.
[0013] Furthermore, the outsole is provided with a plurality of anti-slip protrusions arranged at intervals along the length of the sole, and the bottom surface of each of the anti-slip protrusions is provided with anti-slip texture, and there is a spacing between two adjacent anti-slip protrusions for accommodating the second drainage hole.
[0014] Furthermore, the aforementioned anti-slip protrusions are arrow-shaped.
[0015] Furthermore, the shoe upper has multiple ventilation holes.
[0016] As can be seen from the above description of the structure of this utility model, this utility model has the following advantages:
[0017] Firstly, this utility model features a removable pad inside the sole, with staggered drainage channels, drainage channels, and drainage holes on the sole and pad. This not only ensures that water entering the sole can be smoothly discharged, but also prevents water from seeping into the slippers when walking on wet roads. This significantly improves the waterproof performance and comfort of the slippers, ensuring a pleasant wearing experience for users in slippery environments.
[0018] Secondly, by setting a first limiting groove and a first limiting protrusion that cooperate with each other on the groove of the shoe sole and the pad, this utility model can effectively prevent the pad from moving or falling off during use, ensuring a firm fit between the pad and the shoe sole, and significantly enhancing the stability of the slippers.
[0019] Thirdly, the top surface of the pad of this utility model is densely covered with several anti-slip protrusions, which can effectively increase the friction with the sole of the foot, prevent slippage, and further improve the comfort of the user when wearing it.
[0020] Fourth, this utility model increases the contact area with the ground by setting multiple anti-slip protrusions on the outsole of the shoe, with a gap between the multiple anti-slip protrusions, thereby improving the grip and ensuring the stability of the user walking on wet and slippery surfaces. In addition, the gap between adjacent anti-slip protrusions can also help the water in the second drainage hole to drain out, avoiding water accumulation and further improving the anti-slip effect. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the structure of the shoe sole after the padding body is removed.
[0023] Figure 3 This is a schematic diagram of the first limiting groove in the sole of the shoe of this utility model.
[0024] Figure 4 This is a schematic diagram of the top surface of the pad body of this utility model.
[0025] Figure 5 This is a schematic diagram of the bottom surface of the pad of this utility model.
[0026] Figure 6 This is a schematic diagram of the structure of the first limiting protrusion of the pad body of this utility model.
[0027] Figure 7 This is a schematic diagram of the structure of the outsole of the shoe sole of this utility model.
[0028] Reference numerals: 10-Sole; 11-Upper; 111-Ventilation hole; 12-Groove; 121-Second guide channel; 122-Second drainage channel; 123-Second drainage hole; 124-First limiting groove; 13-Anti-slip protrusion; 131-Anti-slip pattern; 132-Spacing; 20-Pad; 21-First drainage hole; 22-First guide channel; 23-First drainage channel; 24-First limiting protrusion; 25-Anti-slip bump. Detailed Implementation
[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0030] Reference Figures 1 to 5 A slipper designed to prevent water backflow includes a sole 10 and an upper 11. The sole 10 includes an insole and an outsole. The insole has a recessed groove 12, within which a removable pad 20 is provided. The shape of the pad 20 matches the shape of the groove 12. The top surface of the pad 20 has multiple spaced-apart first drainage holes 21, and the bottom surface has vertically arranged first guide channels 22 and multiple horizontally spaced first drainage channels 23 communicating with the first guide channels 22. The multiple first drainage holes 21 correspondingly penetrate the first guide channels 22 and the first drainage channels 23. The bottom wall of the shoe sole 20 is provided with a vertically arranged second guide channel 121. On both sides of the second guide channel 121, there are multiple spaced second drainage channels 122 that are connected to it. The bottom walls of the second guide channel 121 and the second drainage channel 122 are provided with multiple spaced second drainage holes 123. When the pad 20 is installed into the groove 12 of the shoe sole 10, the first guide channel 22 and the first drainage channel 23 are staggered with the second guide channel 121 and the second drainage channel 122. The multiple first drainage holes 21 and the multiple second drainage holes 123 are also staggered.
[0031] During use, water entering the sole 10 can flow out through the first drainage hole 21 of the pad 20, then flow through the first drainage channel 23 and the first guide channel 22 into the second guide channel 121 and the second drainage channel 122, and finally flow out through the second drainage hole 123, ensuring smooth drainage and preventing discomfort caused by water accumulation inside the shoe. At the same time, because the guide channels, drainage channels, and drainage holes of the sole 10 and the pad 20 are staggered, this staggered design prevents water from seeping into the slippers when the user walks on flooded roads, improving user comfort.
[0032] Reference Figures 1 to 6There are two first guide channels 22, with a gap between them. When the pad 20 is installed in the sole, the second guide channel 121 is located within the gap between the two first guide channels 22. The first drainage channel 23 and the second drainage channel 122 can be any one of arrow shape, semi-circular shape, or straight shape. In this embodiment, the first drainage channel 23 and the second drainage channel 122 are preferably arrow-shaped. When the pad 20 is installed in the groove 12 of the sole, the first drainage channel 23 and the second drainage channel 122 are misaligned in the planar projection. The groove 12 has a first limiting groove 124 recessed on both the front and rear sides, and the pad 20 has a first limiting protrusion 24 protruding on both the front and rear sides for engaging with the first limiting groove 124. This staggered arrangement not only allows water to drain quickly but also prevents water backflow, ensuring that the inside of the shoe remains dry and comfortable. At the same time, by setting the first limiting groove 124 and the first limiting protrusion 24, the pad 20 can be effectively prevented from moving or falling off during use, ensuring a firm fit between the pad 20 and the sole 10.
[0033] Reference Figures 1 to 4 The top surface of the pad 20 is densely covered with several anti-slip protrusions 25. These anti-slip protrusions 25 can effectively increase the friction with the user's foot and prevent slippage, further improving the fit and comfort of wearing. The upper 11 has multiple ventilation holes 111, which can ensure air circulation, reduce the discomfort caused by prolonged wear, keep the feet dry, and improve the user's comfort when wearing.
[0034] Reference Figures 1 to 7 The outsole is provided with a plurality of anti-slip protrusions 13 arranged at intervals along the length of the sole 10. The anti-slip protrusions 13 can be straight, wavy, or arrow-shaped, etc. In this embodiment, the anti-slip protrusions 13 are preferably arrow-shaped. The bottom surface of each anti-slip protrusion 13 is provided with anti-slip texture 131, and there is a gap 132 between two adjacent anti-slip protrusions 13 for accommodating the second drainage hole 123. By setting the anti-slip protrusions 13 and anti-slip texture 131, better grip can be provided, the anti-slip effect of the shoe can be enhanced, and the stability when walking on wet and slippery surfaces can be ensured. In addition, the gap 132 between adjacent anti-slip protrusions 13 also helps the water to drain quickly, avoiding water accumulation that affects the anti-slip performance of the slippers, and greatly improving the safety and comfort of the user when wearing them.
[0035] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.
Claims
1. A slipper for preventing moisture from returning, comprising a sole and an upper, characterized by: The shoe sole comprises an inner sole and an outer sole, the inner sole is concavely provided with a recess, the recess is provided with a detachable pad, the top surface of the pad is provided with a plurality of first drainage holes arranged at intervals, the bottom surface is provided with a first flow guide groove arranged vertically and a plurality of first drainage grooves arranged at intervals in the transverse direction and communicated with the first flow guide groove, a plurality of the first drainage holes correspond to the first flow guide groove and the first drainage groove; the bottom wall of the recess is provided with a second flow guide groove arranged vertically, the two sides of the second flow guide groove are symmetrically provided with a plurality of second drainage grooves arranged at intervals and communicated with the second flow guide groove, the bottom wall of the second flow guide groove and the second drainage groove is provided with a plurality of second drainage holes arranged at intervals, and the first flow guide groove and the first drainage groove are arranged in a staggered manner with the second flow guide groove and the second drainage groove.
2. The water return prevention slipper according to claim 1, characterized by: A plurality of the first drainage holes and a plurality of the second drainage holes are arranged in a staggered manner.
3. The water return prevention slipper according to claim 1, characterized by: The first drainage groove and the second drainage groove are any one of an arrowhead shape, a semicircular shape or a straight line shape.
4. The moisture return preventing slipper according to claim 1, wherein: The front side and the rear side of the recess are concavely provided with a first limiting groove, and the front side and the rear side of the pad are convexly provided with a first limiting protrusion for clamping into the first limiting groove.
5. The water return prevention slipper according to any one of claims 1 to 4, characterized by: The top surface of the pad is densely provided with a plurality of anti-skid protrusions.
6. The water return prevention slipper according to any one of claims 1 to 4, characterized by: The outer sole is provided with a plurality of anti-skid protrusions arranged at intervals in the length direction of the shoe sole, the bottom surface of each anti-skid protrusion is provided with an anti-skid pattern, and the interval between adjacent two anti-skid protrusions has a space for accommodating the second drainage hole.
7. The moisture return preventing slipper according to claim 6, characterized by: The anti-skid protrusion is an arrowhead shape.
8. The moisture return preventing slipper according to claim 6, wherein: The vamp is provided with a plurality of air holes.