Side edge braking bionic structure of snowboard for unpowered skiing vehicle

Abstract

A side edge braking bionic structure of a snowboard for an unpowered skiing vehicle is composed of symmetrically-arranged hyperbolic columns, symmetrically-arranged double rectangles and a plurality of spherical protrusions, the symmetrically-arranged hyperbolic columns and the symmetrically-arranged double rectangles are of a protruding structure and are arranged up and down, and the spherical protrusions are arranged on the symmetrically-arranged hyperbolic columns and the symmetrically-arranged double rectangles. And the plurality of spherical bulges are arranged on the left and right sides of the symmetrically arranged hyperbolic columns. The plurality of bionic structures are embedded and fixed on the blade surface of the vertical blade of the snowboard, and the bionic structures are reindeer suspended hoof imitating morphological structures and main hoof imitating morphological structures, so that the snow grain compression and accumulation effect can be enhanced, and the braking effect can be improved. Under the synergistic effect of the reindeer suspended hoof simulating morphological structure, the main hoof simulating morphological structure and the spherical protrusions, the friction coefficient of the snowboard during braking is increased, the friction force is increased, and the braking distance is effectively shortened. The simulation display of the snowboard shows that the peak value of the vertical impact force is reduced by 5.1%, the jolting feeling during braking is reduced, and the snowboard has impact resistance.

Description

Technical Field

[0001] This utility model belongs to the field of bionic engineering technology, specifically relating to a side edge braking bionic structure for a ski used in a non-powered ski vehicle. Background Technology

[0002] Most existing non-motorized skis use traditional mechanical structures, relying on gravitational potential energy conversion for braking, which suffers from problems such as long braking distances and low-temperature friction failure. Conventional braking skis have insufficient cutting depth on compacted snow surfaces, resulting in low braking efficiency. Furthermore, existing designs lack environmental friendliness and cultural relevance. To address these issues, this invention proposes a ski that combines bionics and bidirectional braking technology. By optimizing the side edge structure and surface morphology, it significantly improves braking performance and safety. Therefore, researching the braking system of non-motorized skis to improve their braking performance is of great significance. In order to develop a mechanism that meets the needs of the public and has a braking device, based on the reindeer's hoof and its high-passability mechanism for long-distance running, a bionic structure for emergency braking skis for non-motorized skis was developed using engineering bionics.

[0003] Studies have shown that reindeer possess exceptional long-distance running capabilities and exhibit high traversal performance on unconventional terrains such as ice, snow, and frozen ground. The key lies in the unique macroscopic features and microscopic morphology of their hooves. The concave portion of the ball of the hoof contacts the snow surface, not only distributing pressure from the body but also securing the snow, providing greater friction for the reindeer's movement. The dewclaws, in contact with the ground, not only provide auxiliary support but also, due to their unique macroscopic and microscopic structure, offer even greater friction and enhance the reindeer's agility. The concave part of the hoof and the dewclaw area make full contact with the road surface, making the reindeer's movement on icy and snowy surfaces more stable and providing greater grip. It can be observed that the reindeer's hooves make full contact with the road surface on soft surfaces such as snow, making their movement on icy and snowy surfaces more stable and providing greater grip. These two aspects contribute to the reindeer's leaping ability. Based on the unique biological structure of the jerboa, a biomimetic emergency braking snowboard with both vertical blade and friction braking functions was designed, providing a design basis for the overall design and research of ice and snow equipment. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of poor braking performance of unpowered skis by providing a biomimetic structure for side edge braking of skis used in unpowered skis.

[0005] A biomimetic structure for braking the side edge of a ski for a non-powered ski vehicle is provided. The biomimetic structure consists of symmetrically arranged hyperbolic columns, symmetrically arranged double rectangles, and several spherical protrusions. The symmetrically arranged hyperbolic columns and symmetrically arranged double rectangles are protrusion structures, which are arranged vertically. Several spherical protrusions are arranged on the left and right sides of the symmetrically arranged hyperbolic columns.

[0006] The angle between the centerline of the symmetrically arranged hyperbolic cylinder and the tangent at the midpoint of the inner curve of a single hyperbolic cylinder is 13.8°; the angle between the centerline of the symmetrically arranged double rectangle and the hypotenuse of a single rectangle is 53.8°.

[0007] The symmetrically arranged hyperbolic columns are designed to resemble the dewclaw shape of a reindeer, and the rectangles are designed to resemble the main hoof shape of a reindeer.

[0008] The aforementioned biomimetic structure is used for skis for non-powered skis. The ski consists of a head, a waist, and a tail. The waist extends to the head and tail at both ends. The head and tail are arc-shaped structures. The two sides of the ski are edged, and several biomimetic structures are inlaid and fixed on the edge of one side.

[0009] The aforementioned biomimetic structures are arranged in a single row or multiple rows.

[0010] The working principle of this embodiment:

[0011] The biomimetic structure enhances the snow particle compression and accumulation effect, and increases friction when the edge cuts into the snow surface. When the edge of the ski brakes, it is similar to a wheel driving on a road, and the front and rear ends of the ski make full contact with the snow surface.

[0012] The symmetrical arrangement of the double rectangles in the biomimetic structure is modeled after the shape of a reindeer's main hoof. Based on the concave curve of the reindeer's main hoof, it forms a wedge-shaped structure, which allows snow particles to form a compressed accumulation when braking, thereby increasing the snow surface resistance.

[0013] The symmetrical arrangement of hyperbolic columns in the biomimetic structure is modeled after the dewclaw shape of a reindeer. The dewclaw curved surface structure enhances the contact stability between the blade and the snow surface and improves the support force during braking.

[0014] Spherical protrusions are arranged around the symmetrically arranged hyperbolic columns in an alternating pattern to enhance the mechanical shearing effect on snow particles, generate shear resistance to snow crystals, and increase the coefficient of friction. The spherical protrusions raise the temperature of the contact surface through local friction, causing the surface snow particles to melt slightly and form a temporary liquid lubricating layer, which then solidifies rapidly, further enhancing the braking effect.

[0015] The beneficial effects of this utility model are as follows:

[0016] Several biomimetic structures of this invention are embedded and fixed on the edge of the ski. These biomimetic structures are imitations of reindeer dewclaw and primary hoof, which can enhance the snow particle compression and accumulation effect and improve the braking effect.

[0017] The biomimetic structure, which mimics the dewclaw shape of a reindeer, the main hoof shape, and several spherical protrusions, works together to increase the coefficient of friction of the snowboard during braking, thereby increasing friction and effectively shortening the braking distance.

[0018] The skis using this invention exhibit a friction coefficient fluctuation far lower than that of traditional herringbone structures at different speeds, ensuring more stable handling during high-speed braking and providing speed stability. The biomimetic structure disperses the reaction force of the snow surface, and simulations show that the peak vertical impact force of the skis using this invention is reduced by 5.1%, reducing the bumpy feeling during braking and providing impact resistance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the biomimetic structure according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the symmetrically arranged hyperbolic columns in the biomimetic structure of this utility model embodiment;

[0021] Figure 3 This is a schematic diagram of the rectangle in the biomimetic structure of this utility model embodiment;

[0022] Figure 4 This is a schematic diagram showing the arrangement of the biomimetic structure on the blade surface of the vertical blade, which is an embodiment of this utility model.

[0023] Figure 5 This is a three-dimensional schematic diagram of an embodiment of the present invention used for skis;

[0024] Figure 6 This is a side view of a ski according to an embodiment of the present invention; Detailed Implementation

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, a biomimetic structure for braking the side edge of a ski for a non-powered ski vehicle is described. The biomimetic structure 5 is composed of symmetrically arranged hyperbolic columns 51, symmetrically arranged double rectangles 52, and several spherical protrusions 53. The symmetrically arranged hyperbolic columns 51 and symmetrically arranged double rectangles 52 are protruding structures, and are arranged vertically above and below each other. Several spherical protrusions 53 are arranged on the left and right sides of the symmetrically arranged hyperbolic columns 51.

[0026] The angle between the center line of the symmetrically arranged hyperbolic column 51 and the tangent line of the inner curve of a single hyperbolic column 51 is 13.8°; the angle between the center line of the symmetrically arranged double rectangle 52 and the hypotenuse of a single rectangle 52 is 53.8°.

[0027] The symmetrically arranged hyperbolic column 51 is a structure that imitates the dewclaw shape of a reindeer, and the rectangle 52 is a structure that imitates the main hoof shape of a reindeer.

[0028] like Figure 5 and Figure 6 As shown, the bionic structure 5 is used for skis for non-powered skis. The ski A is composed of a head 1, a waist 2 and a tail 3. The waist 2 extends to both ends of the head 1 and the tail 3. The head 1 and the tail 3 are arc-shaped structures. The two sides of the emergency braking ski A are vertical edges 4. Several bionic structures 5 are inlaid and fixed on the edge surface of one side of the vertical edge 4.

[0029] like Figure 4 As shown, the biomimetic structures 5 are arranged in a single row or multiple rows.

[0030] The working principle of this embodiment:

[0031] The biomimetic structure 5 can enhance the snow particle compression and accumulation effect. When the edge 4 cuts into the snow surface, it can enhance the friction. When the edge 4 of ski A brakes, it is similar to a wheel driving on the road. The front and rear ends of ski A are in full contact with the snow surface.

[0032] The symmetrical arrangement of double rectangles 52 in the biomimetic structure 5 is modeled after the shape of a reindeer's main hoof. Based on the concave curve of the reindeer's main hoof, it forms a wedge-shaped structure, which causes snow particles to form a compressed accumulation when braking, thereby increasing the snow surface resistance.

[0033] The symmetrical arrangement of hyperbolic columns 51 in the biomimetic structure 5 is modeled after the dewclaw shape of a reindeer. It adopts a dewclaw curved surface structure to enhance the contact stability between the vertical blade 4 and the snow surface and improve the support force during braking.

[0034] Spherical protrusions 53 are arranged around the symmetrically arranged hyperbolic columns 51 in an alternating pattern to enhance the mechanical shearing effect on snow particles, generate shear resistance to snow crystals, and increase the coefficient of friction. The spherical protrusions 53 increase the temperature of the contact surface through local friction, causing the surface snow particles to melt slightly and form a short-term liquid lubricating layer, which then solidifies rapidly, further enhancing the braking effect.

Claims

1. A side edge braking bionics structure for a ski of a non-powered snowmobile, characterized in that: The biomimetic structure (5) is composed of symmetrically arranged hyperbolic columns (51), symmetrically arranged double rectangles (52) and several spherical protrusions (53). The symmetrically arranged hyperbolic columns (51) and symmetrically arranged double rectangles (52) are protrusion structures. The symmetrically arranged hyperbolic columns (51) and symmetrically arranged double rectangles (52) are arranged vertically, and several spherical protrusions (53) are arranged on the left and right sides of the symmetrically arranged hyperbolic columns (51).

2. An unpowered side edge ski braking bionical structure for a ski-bike as defined in claim 1, characterized in that: The angle between the center line of the symmetrically arranged hyperbolic column (51) and the tangent of the inner curve of the single hyperbolic column (51) is 13.8°; the angle between the center line of the symmetrically arranged double rectangle (52) and the hypotenuse of the single rectangle (52) is 53.8°.

3. A passive snowboard side edge braking bionical structure for a snowboard vehicle according to claim 1 or 2, characterized in that: The symmetrically arranged hyperbolic column (51) is a structure that imitates the dewclaw shape of a reindeer, and the rectangle (52) is a structure that imitates the main hoof shape of a reindeer.

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