PVC (polyvinyl chloride) sole capable of conveniently positioning vamp

By designing connecting grooves, hooks, and limiting plates on the PVC sole, a stable connection between the upper and the sole is achieved, solving the problem of inconvenient positioning in existing technologies and improving production efficiency and the lifespan of the shoes.

CN223817047UActive Publication Date: 2026-01-23DONGGUAN ZHONGSICHUANG PLASTIC PRODUCTS CO LTD
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Patent Information

Application Number
CN202520056079.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-01-23
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

The existing PVC soles of slippers are not convenient for positioning the upper, resulting in time-consuming and labor-intensive production, large positioning deviations, insufficient connection strength, and easy detachment of the sole, which affects production efficiency and quality.

Method used

A PVC shoe sole was designed by setting a connecting groove and a connecting block on the sole body. The connecting block is equipped with a hook and a strip. The hook is embedded in the groove and cooperates with the rubber strip. Combined with the limiting plate and the limiting groove, a stable connection between the shoe upper and the shoe sole is achieved.

Benefits of technology

It improves the connection stability between the upper and the sole, reduces the risk of detachment, simplifies the production and assembly process, increases production efficiency and shoe durability, and enhances the wearing experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a PVC (Polyvinyl Chloride) sole convenient for positioning a vamp, which comprises a sole body, a vamp body is arranged at the upper end of the sole body, and anti-skidding grains are arranged at the bottom of the sole body. According to the PVC sole capable of conveniently positioning the vamp, by arranging the structures such as the clamping hooks and the limiting plates, the clamping hooks are embedded into the grooves along with the connecting blocks during assembly and are matched with the rubber clamping strips, the horizontal pulling force of daily wearing and movement of the vamp is borne through a rigid structure, transverse displacement of the vamp and the sole is prevented, and the structural stability is guaranteed during walking turning and running turning; the falling risk is reduced, the service life is prolonged, the production efficiency is improved through convenient clamping, connection is simpler and more flexible, when the limiting plate is assembled, elastic deformation of an inclined face is used for guiding, a clamping block is assisted to be accurately in place, and the efficiency is improved; when the slipper is stressed, impact is buffered, shaking of the clamping blocks is limited, positioning deviation is reduced, durability is enhanced, wearing experience is improved, and slipper quality is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of slipper manufacturing technology, and more specifically, to a PVC sole that facilitates positioning of the shoe upper. Background Technology

[0002] Slippers are shoes without a back panel, generally worn indoors. They are typically designed to separate the shoe from the foot without harming the foot, using movement between the shoe and foot, or between the shoe and foot along the three protrusions on the sole of the foot, or between the inner surface of the sole and the extended line of the lower leg axis. Slippers are widely used in daily life. During the production process, the upper and sole are positioned and connected to form a complete slipper.

[0003] However, the existing PVC soles for slippers are not convenient for positioning the upper, making the connection between the PVC sole and the upper time-consuming and laborious during slipper production, reducing slipper production efficiency. Furthermore, there are large positioning deviations between the upper and the PVC sole, affecting the production quality of slippers. In addition, the connection strength between the existing PVC sole and the upper is insufficient, making it easy for the sole to detach.

[0004] This invention makes the connection between the PVC sole and the upper more stable and convenient, thereby improving the productivity of slippers to a certain extent. Summary of the Invention

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a PVC sole that facilitates the positioning of the shoe upper.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PVC shoe sole that facilitates the positioning of the shoe upper, comprising: a shoe sole body, an upper body being mounted on the upper end of the shoe sole body, and anti-slip particles being provided on the bottom of the shoe sole body;

[0007] A connecting block is provided at the bottom of the shoe upper, and a connecting groove is provided at the upper end of the shoe sole. The connecting block can be embedded in the connecting groove. A groove is provided on the inner side of the connecting groove. A clip is fixedly installed at the upper end of the inner wall of the groove. The clip is made of rubber. A hook is fixedly installed on one side of the connecting block. The hook can be embedded in the groove and is located inside the clip.

[0008] A further preferred embodiment: one end of the connecting groove is inclined.

[0009] A further preferred embodiment: a locking block is provided at the bottom of the connecting block, and limit plates are fixedly installed on both sides of the locking block. The limit plates are made of rubber and are inclined.

[0010] A further preferred embodiment: a limiting groove is provided at the bottom of the connecting groove, and both the card block and the limiting plate can be embedded in the limiting groove, and the inside of the limiting groove is convex. Beneficial effects

[0011] 1. By incorporating a hook, during assembly, as the connecting block is inserted into the connecting slot, the hook naturally embeds into the groove, tightly engaging with the rubber clip. Its rigid structure ensures that, after embedding, it can withstand the horizontal pulling force of the shoe upper during daily wear and exercise, effectively preventing lateral displacement between the shoe upper and sole. For example, when walking, turning, or running, the lateral pulling force generated by the foot on the shoe upper is transmitted to the sole through the hook. The hook, with its stable engagement, keeps the shoe upper and sole in tandem, ensuring the overall structural stability of the shoe, greatly reducing the risk of the shoe upper falling off, and extending the shoe's lifespan. At the same time, its convenient engagement method also facilitates production assembly and shoe upper replacement, making the connection between the shoe upper and sole simpler and more flexible, thereby effectively improving the production efficiency of slippers.

[0012] 2. By setting a limiting plate, during the assembly process, its inclined surface adapts to the groove wall through elastic deformation when inserted into the limiting groove, playing a guiding role and helping the locking block to be quickly and accurately positioned, improving production efficiency. When the shoe is subjected to external force pulling or twisting, it can cushion the impact with its own elasticity, preventing the connection part from being damaged by rigid collision. Moreover, it tightly abuts the locking block from the side, limiting its shaking, providing continuous and stable support for the connection between the upper and the sole, enhancing the durability of the shoe, improving the wearing experience, reducing positioning deviation, and thus effectively improving the quality of the slippers.

[0013] 3. In summary, this type of PVC sole, which facilitates the positioning of the shoe upper, features a structure including hooks and limiting plates. During assembly, the hooks are embedded in grooves along with the connecting blocks, working in conjunction with rubber clips. This rigid structure withstands the horizontal pulling forces of daily wear and exercise, preventing lateral displacement of the upper and sole. This ensures structural stability during walking, turning, and running, reducing the risk of detachment and extending lifespan. The convenient snap-fit ​​design also improves production efficiency, making connections simpler and more flexible. The limiting plates utilize the elastic deformation of the inclined surface for guidance during assembly, helping the clips to be precisely positioned and improving efficiency. Under stress, they cushion impacts, limit clip movement, reduce positioning deviations, enhance durability, improve the wearing experience, and effectively improve the quality of slippers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the anti-slip particle structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the connecting groove structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the connection structure between the groove and the connecting block of this utility model.

[0018] Figure 5 This is a schematic diagram of the connection structure between the limiting groove and the limiting plate of this utility model.

[0019] Figure 6 This is a schematic diagram of the limiting plate structure of this utility model.

[0020] Figure 1-6 In the middle: 1. Sole body; 101. Connecting groove; 102. Groove; 103. Locking strip; 104. Limiting groove; 2. Upper body; 201. Connecting block; 202. Hook; 203. Locking block; 204. Limiting plate; 3. Anti-slip particles. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figures 1-6 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0022] Please see Figure 1-6 In this embodiment of the present invention, a PVC shoe sole for convenient positioning of the shoe upper includes: a shoe sole body 1, an upper body 2 mounted on the upper end of the shoe sole body 1, and anti-slip particles 3 provided on the bottom of the shoe sole body 1; a connecting block 201 provided on the bottom of the upper body 2, and a connecting groove 101 provided on the upper end of the shoe sole body 1, the connecting block 201 being able to be embedded in the connecting groove 101. A groove 102 is provided on the inner side of the connecting groove 101, and a retaining strip 103 is fixedly installed on the upper end of the inner wall of the groove 102, the retaining strip 103 being made of rubber; a hook 202 is fixedly installed on one side of the connecting block 201, the hook 202 being able to be embedded in the groove 102, and the hook 202 being located inside the retaining strip 103; one end of the connecting groove 101 is inclined.

[0023] When assembling the upper and sole, the connecting block 201 at the bottom of the upper body 2 is aligned with the connecting groove 101 at the upper end of the sole body 1 and inserted. Since one end of the connecting groove 101 is inclined, this guides the insertion of the connecting block 201, allowing it to slide more smoothly into the groove, thus initially achieving a rough positioning of the upper and sole. As the connecting block 201 is further inserted, the hook 202 on one side of the connecting block 201 naturally embeds into the groove 102 on the inner wall of the connecting groove 101. At this point, the rubber clip 103 located at the upper end of the groove 102 plays a crucial role because... With a certain degree of elasticity, when the hook 202 is inserted, it squeezes the locking strip 103. The locking strip 103 deforms and applies a reverse elastic force to the hook 202, firmly locking the hook 202 in place. This achieves precise fixation of the upper and sole in both horizontal and vertical directions, ensuring a tight fit and preventing easy displacement. The anti-slip particles 3 on the bottom of the sole body 1 increase the friction between the sole and the ground during walking, effectively preventing slippage. When the foot lands, the anti-slip particles 3 can embed into tiny uneven areas of the ground, providing a stable support point, even in... Walking on wet or slippery surfaces ensures user safety and balance. The unique design of the connecting block 201, connecting groove 101, hook 202, and locking strip 103 makes assembling the upper and sole extremely simple and quick. No complicated tools or professional skills are required; operators simply insert the connecting block 201 along the inclined connecting groove 101, and the hook 202 automatically engages with the groove 102 for precise positioning, greatly improving production efficiency and reducing labor costs. It also allows consumers to easily replace the upper themselves. (Rubber locking strip) The combination of 103 and 202 hooks ensures a secure connection between the upper and sole. During daily wear, walking, and sports, the upper can withstand frequent pulling and bending forces, preventing separation and extending the overall lifespan of the shoe. This reduces the frequency of repairs or replacements. The anti-slip particles 3 on the sole significantly enhance friction between the sole and the ground, adapting to various road conditions and effectively reducing the risk of slipping. Whether for daily commutes, outdoor sports, or walking in inclement weather, the shoe provides reliable safety, making walking more stable and worry-free.

[0024] In this embodiment of the utility model, a locking block 203 is provided at the bottom of the connecting block 201, and a limiting plate 204 is fixedly installed on both sides of the locking block 203. The limiting plate 204 is made of rubber and is inclined. A limiting groove 104 is provided at the bottom of the connecting groove 101. Both the locking block 203 and the limiting plate 204 can be embedded in the limiting groove 104, and the inside of the limiting groove 104 is convex.

[0025] When the connecting block 201 at the bottom of the upper body 2 is inserted into the connecting groove 101 of the sole body 1, the locking block 203 at the bottom of the connecting block 201 enters the limiting groove 104 at the bottom of the connecting groove 101. Since the limiting groove 104 is convex, the locking block 203 can be precisely embedded in its narrow area. The rubber limiting plates 204, which are inclined on both sides, undergo elastic deformation due to the pressure from the inner wall of the limiting groove 104 during insertion, facilitating smooth insertion. After insertion, the limiting plates 204, with their rubber... The elastic recovery force of the rubber plate 204 tightly adheres to the inner wall of the limiting groove 104, providing stable support to the locking block 203 from the side and preventing it from wobbling in the horizontal direction. This further restricts the displacement of the connecting block 201 within the connecting groove 101, making the connection between the upper and the sole more secure and reliable. In the initial assembly stage, the inclined limiting plate 204 acts as a guide, guiding the locking block 203 to quickly and accurately align with the limiting groove 104, improving assembly efficiency. Furthermore, during daily wear and walking, when the upper and sole are subjected to external pulling or twisting forces, the rubber limiting plate 204 can cushion the impact. To mitigate some impact forces and prevent damage to the connecting parts due to rigid collisions, the new structure of the upper and sole is protected, maintaining the overall integrity of the shoe. The added locking block 203, limiting plate 204, and limiting groove 104 structure strengthens the connection stability between the upper and sole from multiple dimensions. Compared to relying solely on the hook 202 and locking strip 103 for fixation, this multi-structure collaborative approach better copes with complex external forces, greatly reducing the risk of upper and sole separation, significantly extending the shoe's lifespan, and lowering the cost of frequent shoe replacements for consumers. During assembly, the guiding function of the limiting plate 204 and the ingenious design of each component ensure that operators can easily and quickly assemble the upper and sole. Simple operation achieves precise docking, greatly improving assembly efficiency on the production line and saving labor and time costs for enterprises. The cushioning characteristics of the rubber limiting plate 204 effectively protect the connecting structure from premature damage when the shoe is subjected to daily external impacts, ensuring that the shoe maintains good overall integrity during prolonged wear and exercise, further enhancing the shoe's durability and improving the user's wearing experience.

[0026] Working principle: When assembling the upper and sole, the connecting block 201 at the bottom of the upper body 2 is aligned with the connecting groove 101 with an inclined end on the sole body 1 and inserted. The inclined end helps the connecting block 201 slide in smoothly, easily achieving the initial rough positioning of the upper and sole, laying the foundation for subsequent precise assembly. At the same time, the locking block 203 is embedded inside the limiting groove 104 for further limiting. During insertion, the limiting plate 204 contacts the inner wall of the limiting groove 104 due to the inclined angle, and undergoes elastic deformation under pressure. After being in place, the limiting plate 204, with the help of the rubber's restoring force, tightly fits the inner wall of the limiting groove 104, making the upper more stable during connection. Moreover, in dynamic scenarios of daily wear, such as walking, exercise, and external pulling and twisting, the rubber limiting plate 204 steps forward to buffer part of the impact force, protect the connection structure, and maintain the integrity and uniformity of the shoe. The anti-slip particles 3 on the bottom of the sole remain firmly in place, embedding themselves into the unevenness of the ground during walking to increase friction. The connecting block 201 and the locking block 203 move inside the connecting groove 101 and the limiting groove 104, respectively. As the connecting block 201 goes deeper, the hook 202 on one side moves towards the groove 102 on the inner wall of the connecting groove 101. Once embedded in the groove 102, the upper rubber locking strip 103 immediately performs its unique function. Due to its own elasticity, the hook 202 squeezes the locking strip 103 upon embedding. The locking strip 103 deforms under force and generates a reverse elastic force, firmly securing the hook 202. This achieves precise fixation of the upper and the sole in the horizontal and vertical directions. The two are tightly bound together, eliminating the risk of displacement. This makes the connection between the PVC sole and the upper more stable and convenient, thereby improving the productivity of slippers to a certain extent.

Claims

1. A PVC sole for convenient positioning of the shoe upper, comprising: The sole body (1) is characterized in that: an upper body (2) is installed on the upper end of the sole body (1), and anti-slip particles (3) are provided on the bottom of the sole body (1). The shoe upper (2) has a connecting block (201) at the bottom and a connecting groove (101) at the upper end of the shoe sole (1). The connecting block (201) can be embedded in the connecting groove (101). The inner wall of the connecting groove (101) has a groove (102). A clip (103) is fixedly installed on the upper end of the inner wall of the groove (102). The clip (103) is made of rubber. A hook (202) is fixedly installed on one side of the connecting block (201). The hook (202) can be embedded in the groove (102) and is located inside the clip (103).

2. The PVC sole for convenient positioning of the shoe upper according to claim 1, characterized in that: The inside of the connecting groove (101) is inclined at one end.

3. A PVC sole for convenient positioning of the shoe upper according to claim 1, characterized in that: The bottom of the connecting block (201) is provided with a locking block (203), and a limiting plate (204) is fixedly installed on both sides of the locking block (203). The limiting plate (204) is made of rubber and is inclined.

4. A PVC sole for convenient positioning of the shoe upper according to claim 3, characterized in that: The bottom of the connecting groove (101) is provided with a limiting groove (104). Both the card block (203) and the limiting plate (204) can be embedded in the limiting groove (104), and the inside of the limiting groove (104) is convex.