Shoe heel anti-off structure

Abstract

This utility model discloses a heel anti-slip structure for shoes. The shoe includes a heel counter and a sole. A first air bladder is provided in the heel counter, and an air compression device is provided in the sole. The air compression device is connected to the first air bladder through an exhaust pipe. The air compression device is configured to compress gas into the first air bladder when the heel is raised. This utility model injects gas into the first air bladder during the foot lifting process, and the first air bladder can also slowly expel gas into the shoe. This achieves the effect of inflating the first air bladder during the lifting process, realizing the anti-slip effect, and also preventing the first air bladder from becoming over-inflated and under excessive pressure. When not walking, the gas in the first air bladder will decrease to a comfortable level.

Description

Technical Field

[0001] This utility model relates to a shoe heel anti-slip structure. Background Technology

[0002] Shoes manufactured using modern techniques, aside from some custom-made shoes based on foot shape, are generally mass-produced using standard lasts and standardized processes. However, each consumer's foot shape is somewhat different, so some shoes may be relatively loose around the foot, making it easy for the heel to slip off during walking. Furthermore, with prolonged use, reduced heel elasticity and material aging can also cause the shoe opening to become looser than new shoes, making them more prone to slipping off. Current technology often uses padding such as small pillows in the heel to increase friction between the shoe and foot. The problem is that if it's too tight, it puts excessive pressure on the foot, affecting comfort over time; if it's slightly loose, it can also slip off, impacting the wearing experience. Utility Model Content

[0003] To address the above shortcomings, the inventors studied gait and discovered that heel slippage mainly occurs during the heel lift off the ground. This is because foot lift is a process of acceleration, while the heel retains inertia, causing a tendency for the foot to separate from the heel. As the foot lifts and moves forward, the heel counter also tends to separate horizontally, reducing friction between the counter and the foot. This makes heel slippage less likely during the downward movement. Therefore, heel slippage primarily occurs during the foot's upward and horizontal movement. Maintaining sufficient pressure during this movement can effectively prevent heel slippage.

[0004] Therefore, this utility model provides a shoe heel anti-slip structure, the shoe includes a heel counter and a sole, the heel counter is provided with a first air bladder, the sole is provided with a compression device, the compression device is connected to the first air bladder through an exhaust pipe, the compression device is configured to compress gas into the first air bladder when the heel is lifted.

[0005] Furthermore, the air compression device includes a descending component, a fixing component, and a resetting component. The fixing component includes a top plate, and the descending component includes a moving plate. The upper side of the second airbag is fixed to the top plate, and the lower side of the second airbag is fixed to the moving plate. When the heel is pressed down, the descending component causes the second airbag to expand, and gas enters the second airbag. When the heel is lifted, the resetting component pushes the second airbag upward, and the gas in the second airbag enters the first airbag, causing the first airbag to expand and make the heel counter contact the foot to prevent it from falling off.

[0006] Furthermore, the down-feeding component includes a pedal, which is connected to the moving plate by a support member. The pedal contacts the midsole. The fixing component includes a base, which is disposed in a groove in the sole. The base is connected to the fixing plate by a support rod. The moving plate has a hole through which the support rod passes. The reset component includes a compression spring and is fixed between the moving plate and the base.

[0007] Furthermore, the reset assembly also includes an elastic body disposed between the pedal and the top plate.

[0008] Furthermore, the rear side panel includes an inner lining and a surface layer, the first airbag is disposed between the inner lining and the surface layer, and an elastic block with an arc surface is disposed between the first airbag and the inner lining.

[0009] Furthermore, the first airbag is strip-shaped, extending from one side of the rear side to the other; or the first airbags are spaced apart and arranged from one side of the rear side to the other.

[0010] Furthermore, the lining is shorter in length than the outer layer in the longitudinal direction, the lining extends to the surface of the midsole, the upper of the outer layer extends to the lower surface of the midsole and is used to fix it to the sole, and the vent pipe is located in front of the lining and the outer layer, extending along the midsole into a groove below the midsole.

[0011] Furthermore, the heel of the midsole is provided with a groove, and the exhaust pipe is set in the groove. The position of the foot corresponding to the exhaust pipe is flush with other parts, so as to avoid excessive thinning of this position when the foot of the surface layer is sanded during the bonding process.

[0012] Furthermore, the second airbag is equipped with a pipe that connects to the outside, and a one-way air intake valve is installed on the pipe and the exhaust pipe, so that the first airbag can slowly exhaust air into the shoe cavity.

[0013] The beneficial technical effects of this utility model are as follows:

[0014] This invention relates to a shoe heel anti-slip structure, which differs from traditional airbag anti-slip structures. Traditional airbag anti-slip structures inject gas into the heel pouch by squeezing the airbag when the foot is pressed down. In contrast, this invention injects gas into the first airbag during the lifting of the foot. Furthermore, in a specific embodiment of this application, the first airbag can slowly release gas into the shoe, achieving inflation of the first airbag during the lifting process, thus preventing heel slippage. It also prevents the first airbag from becoming over-inflated and under excessive pressure; when not walking, the gas in the first airbag will decrease to a comfortable level. Attached Figure Description

[0015] Figure 1 A schematic diagram illustrating the interaction between the foot and the shoe's inner cavity;

[0016] Figure 2 This is a sectional view of the rear side.

[0017] Figure 3 This is a schematic diagram of a compressed air device.

[0018] Explanation of reference numerals in the attached drawings: 1. Heel counter; 101. Outer layer; 102. Sealing strap; 103. Lining; 104. Elastic block; 2. Outsole; 201. Groove; 3. Midsole; 301. Slot; 4. First airbag; 5. Exhaust pipe; 6. Downward assembly; 601. Pedal; 602. Moving plate; 603. Supporting component; 7. Fixing assembly; 701. Top plate; 702. Base; 703. Support rod; 8. Reset assembly; 9. Second airbag. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Reference Figures 1 to 3 As shown, this utility model discloses a heel anti-slip structure for shoes. The shoe includes a heel counter 1 and a sole 2. A first airbag 4 is provided in the heel counter 1, and an air compressor 4 is provided in the sole 2. The air compressor 4 is connected to the first airbag 4 through an exhaust pipe 5. The air compressor 4 is configured to compress gas into the first airbag 4 when the heel is lifted. In this embodiment, the heel counter and sole 2 are bonded together. The heel counter (including the heel counter 1) is manufactured during the upper-making process, which involves cutting the lining and outer fabric into corresponding shapes, processing them separately, and then forming the required heel counter through gluing, sewing, or other methods. The first airbag 4 is fixed in the corresponding position of the heel counter 1 during the upper-making process. The heel counter is fixed to the midsole 3. The part of the upper extending to the lower surface of the midsole 3 is sanded and roughened before being fixed to the sole 2 by gluing. The sole 2 has a groove 201 pre-formed during injection molding for installing the air compressor 2.

[0021] Reference Figure 2 As shown, the heel counter 1 is mainly formed by combining an inner lining 103, a safety strap 102, and an outer layer 101. The first airbag 4 is located between the inner lining 103 and the safety strap 102. When the safety strap 102 is not provided, it can be located between the inner lining 103 and the outer layer 101. An elastic block 104 with a triangular cross-section and an arc surface is provided between the first airbag 4 and the inner lining 103, so that the corresponding part protrudes after the first airbag is inflated and applies a certain pressure to contact the foot. The first airbag 4 is connected to the lower surface of the midsole 3 through an exhaust pipe 5 and communicates with the second airbag 9 of the air compression device provided in the heel groove 201 of the sole 2.

[0022] Reference Figure 3As shown, the air compression device includes a descending assembly 6, a fixing assembly 7, and a resetting assembly 8. The fixing assembly 7 includes a top plate 701 and a base 702. The base 702 is disposed in the groove 201 of the shoe sole, and the base 702 is connected to the top plate 701 by a support rod 703. The descending assembly 6 includes a moving plate 602 and a pedal 601. The pedal 601 is connected to the moving plate 602 by a support member 603. The pedal 601 contacts the midsole 3, and the support rod 703 passes through a hole in the moving plate 602. When the foot steps on the midsole 3, the pedal 601 drives the moving plate 602 to move downward along the support rod 703. The upper side of the second airbag 9 is fixed to the top plate 701, and the lower side of the second airbag 9 is fixed to the moving plate 602. The resetting assembly 8 includes a compression spring and is fixed between the moving plate 602 and the base 702. It may also include an elastic body disposed between the pedal 601 and the top plate 701. When the heel is pressed down, the midsole 3 is pressed down, causing the pedal 601 and the moving plate 602 to move downward. The second airbag 9 expands and gas enters the second airbag 9. When the heel is lifted, the reset component 8 pushes the second airbag 9 to move upward. The gas in the second airbag 9 enters the first airbag 4, causing the first airbag 4 to expand and make the heel contact the foot to prevent it from falling off.

[0023] In the above embodiments, reference is made to Figure 2 As shown, the first airbag 4 is strip-shaped, extending from one side of the rear side 1 to the other side. The first airbag 4 can also be arranged in several strips in the longitudinal direction; the first airbag 4 can also be block-shaped, spaced apart, and arranged from one side of the rear side 1 to the other side.

[0024] In the above embodiments, reference is made to Figure 2 As shown, the length of the inner lining 103 in the longitudinal direction is less than that of the outer layer 101. The inner lining 103 extends to the upper surface of the midsole 3, and the upper foot of the outer layer 101 extends to the lower surface of the midsole 3 and is used to fix it to the sole 2. The exhaust pipe 5 is set in front of the inner lining 103 and the outer layer 101. The heel part of the midsole 3 is provided with a slot 301 extending to the groove 201. The exhaust pipe 5 is put into the slot 301. The position of the upper foot corresponding to the exhaust pipe 5 is flush with other parts to avoid the raised parts being thinned too much during sanding.

[0025] In the above embodiment, the second airbag is also provided with a pipe connecting to the outside. A one-way air inlet valve is installed on the pipe and the exhaust pipe 5, allowing unidirectional air intake from the outside. The first airbag 4 is provided with an exhaust pipe leading to the shoe cavity. A miniature throttle valve or a small air outlet can be installed on the exhaust pipe, allowing for slow air release into the shoe cavity when the first airbag 4 is fully inflated. Its function is that when the first airbag 4 is overinflated, the foot pressure is high. The greater the pressure difference between the first airbag 4 and the shoe cavity, the faster the first airbag 4 releases air into the shoe cavity, allowing it to reduce pressure and improve comfort during continuous walking. Secondly, when not walking (generally standing or sitting), the slow air release reduces the pressure of the first airbag 4, improving comfort. When switching to walking, the foot will first lift, and the first airbag 4 will be inflated directly during this lifting process, preventing the heel from slipping off during the initial movement.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A heel anti-slip structure for shoes, the shoe comprising a heel counter and a sole, characterized in that: The heel counter is provided with a first air bladder, and the sole is provided with an air compression device. The air compression device is connected to the first air bladder through an exhaust pipe. The air compression device is configured to compress gas into the first air bladder when the heel is raised.

2. The heel-retention structure of claim 1, wherein: The air compression device includes a descending component, a fixing component, and a resetting component. The fixing component includes a top plate, and the descending component includes a moving plate. The upper side of the second airbag is fixed to the top plate, and the lower side of the second airbag is fixed to the moving plate. When the heel is pressed down, the descending component causes the second airbag to expand, and gas enters the second airbag. When the heel is lifted, the resetting component pushes the second airbag upward, and the gas in the second airbag enters the first airbag, causing the first airbag to expand and make the heel counter contact the foot to prevent it from falling off.

3. The heel-retention structure of Claim 2, wherein: The descending assembly includes a pedal, which is connected to a moving plate by a support member. The pedal contacts the midsole. The fixing assembly includes a base, which is disposed in a groove in the sole. The base is connected to the fixing plate by a support rod. The moving plate has a hole through which the support rod passes. The resetting assembly includes a compression spring and is fixed between the moving plate and the base.

4. The heel-retention structure of Claim 3, wherein: The reset assembly also includes an elastic body disposed between the pedal and the top plate.

5. The heel-retention structure of any of claims 1-4, wherein: The rear side panel includes an inner lining and a surface layer. The first airbag is disposed between the inner lining and the surface layer, and an elastic block with an arc surface is disposed between the first airbag and the inner lining.

6. The heel-retention structure of claim 5, wherein: The first airbag is strip-shaped, extending from one side of the rear side to the other; or the first airbags are spaced apart and arranged from one side of the rear side to the other.

7. The heel-retention structure of claim 5, wherein: The lining is shorter in length than the outer layer in the longitudinal direction. The lining extends to the surface of the midsole. The upper of the outer layer extends to the lower surface of the midsole and is used to fix it to the sole. The vent is located in front of the lining and the outer layer and extends along the midsole into a groove below the midsole.

8. The heel-retention structure of claim 7, wherein: The heel of the midsole is provided with a slot, and the exhaust pipe is set in the slot. The position of the upper corresponding to the exhaust pipe is flush with other parts to avoid excessive thinning of this position when the upper of the surface layer is sanded during the bonding process.

9. The heel-retention structure of any of claims 2-4, wherein: The second airbag is equipped with a pipe that connects to the outside. The pipe and the exhaust pipe are equipped with a one-way air intake valve, and the first airbag can slowly exhaust air into the shoe cavity.

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