Foldable portable carbon fiber composite electric skateboard

Abstract

The utility model provides a foldable portable carbon fiber composite material electric skateboard, which comprises a first deck, a second deck and a hinge, the hinge comprises two first blades and a second blade, the two first blades are respectively fixed at one end of the bottom of the first deck and one end of the bottom of the second deck, and the two second blades are respectively fixed at the other end of the bottom of the second deck. One ends of the two first hinge pieces are rotationally connected through a first torsion spring, each first hinge piece is rotationally connected with a second hinge piece through a second torsion spring, and the first hinge pieces and the second hinge pieces are rotationally connected through pin shafts. A battery and a control system are arranged at the bottom of the first deck, the control system is electrically connected with the battery and the electric pulleys, and the battery is electrically connected with the electric pulleys. The electric skateboard can be folded, and is convenient to carry and small in occupied space during storage. The folding and unfolding operation is simple, convenient and rapid, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of skateboard technology, specifically to a foldable portable electric skateboard made of carbon fiber composite material. Background Technology

[0002] Skateboards are a very popular sporting device, and sometimes also used as a short-distance mode of transportation. They are especially popular among users, particularly teenagers. With the continuous improvement of living standards and the development of technology, people's expectations and demands for skateboards are also increasing. Currently, most skateboards on the market are made of pressed wood or bamboo. These types of ordinary skateboard materials have low strength and poor safety; the skateboards are also thick and heavy, inconvenient to carry, and require manual skill to operate.

[0003] Electric skateboards have become increasingly popular in recent years. Powered by electricity, they offer significant advantages for very short distances. However, standard-length electric skateboards with good safety features are quite long (80-120 cm) and heavy, making them inconvenient to carry. When not in use, they take up space at home, and improper storage can potentially lead to accidents.

[0004] Existing conventional and electric skateboards are long, have low safety and reliability, and are inconvenient to carry, causing considerable trouble for users. Therefore, there is a need for a portable, foldable electric skateboard. Utility Model Content

[0005] To address the problems in the background art, this utility model proposes a foldable portable carbon fiber composite electric skateboard, comprising a first deck, a second deck, and a hinge. Both the first and second decks are equipped with electric pulleys at their bottoms. The hinge comprises two first and second leaf pieces. The two first leaf pieces are respectively fixed to one end of the bottom of the first deck and one end of the bottom of the second deck. One end of each of the two first leaf pieces is rotatably connected by a first torsion spring. Each first leaf piece is rotatably connected to a second leaf piece by a second torsion spring. The first and second leaf pieces are rotatably connected by a pin.

[0006] The axis of relative rotation of the first and second leaf pieces is perpendicular to the axis of relative rotation of the two first leaf pieces, and the axis of the pin is perpendicular to the axis of relative rotation of the first and second leaf pieces;

[0007] The bottom of the first deck is equipped with a battery and a control system. The control system is electrically connected to the battery and the electric pulley, respectively. The battery is electrically connected to the electric pulley.

[0008] Preferably, the first deck and the second deck are connected by two hinges, which are symmetrically arranged.

[0009] Preferably, the first page is a right trapezoid, the height sides of the two first pages are parallel and rotatably connected, the second page is a rectangle, the long side of the second page is parallel and rotatably connected to the long base side of the first page, and the wide sides of the two second pages that are close to each other are rotatably connected.

[0010] Preferably, the control system includes a controller, an acceleration sensor, and a pressure sensor, wherein the controller is connected to the acceleration sensor, the pressure sensor, the battery, and the electric pulley, respectively.

[0011] Preferably, the first deck and the second deck are of the same length.

[0012] Preferably, the distance between the electric pulley and the hinge on the first deck is less than the distance between the electric pulley and the hinge on the second deck.

[0013] Preferably, the relative rotation angle range of the two first sheets is 0-180°, the relative rotation angle range of the first sheet and the second sheet is 0-90°, and the relative rotation angle range of the two second sheets is 0-180°.

[0014] Preferably, the first deck and the second deck are both made of graphene-modified carbon fiber / epoxy resin composite material.

[0015] Preferably, the hinge is made of alloy steel.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model has a simple and foldable structure, saving space and making it easy to carry. When the skateboard is opened, the hinge can be locked by the limiting action of the second leaf, allowing the two decks of the skateboard to be on the same plane for user use; when folding, by rotating the second leaf, the limiting action of the second leaf is released, and the torsion spring can drive the skateboard to automatically close and fold. The folding and unfolding method of this utility model is simple and convenient.

[0018] 2. This utility model uses graphene-modified carbon fiber / epoxy resin composite material as the skateboard panel, which is lightweight and has high strength. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the electric skateboard of this utility model when it is unfolded;

[0020] Figure 2 This is a schematic diagram of the structure of the electric skateboard of this utility model when folded;

[0021] Figure 3 This is a schematic diagram of the hinge structure of this utility model.

[0022] The following are the labeling elements in the diagram: 1. First deck; 2. Second deck; 3. Hinge; 4. Drive wheel; 5. Driven wheel; 6. Battery; 7. Controller; 8. First torsion spring; 9. Second torsion spring; 10. Pin; 11. First leaf; 12. Second leaf. Detailed Implementation

[0023] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0024] In this article, terms such as "inner," "outer," "upper," and "lower" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0025] Combined with appendix Figure 1 -Appendix Figure 3 A foldable portable carbon fiber composite electric skateboard includes a first deck 1, a second deck 2, and a hinge 3. The first deck 1 and the second deck 2 are both made of graphene-modified carbon fiber / epoxy resin composite material, and the hinge 3 is made of high-strength alloy steel. The first deck 1 and the second deck 2 are of the same length. The distance between the electric pulley on the first deck 1 and the hinge 3 is smaller than the distance between the electric pulley on the second deck 2 and the hinge 3, so as to avoid interference between the two electric pulleys after the skateboard is folded.

[0026] Both the first deck 1 and the second deck 2 are equipped with electric pulleys at their bottoms. The hinge 3 includes two first leaf pieces 11 and two second leaf pieces 12. The two first leaf pieces 11 are respectively fixed to one end of the bottom of the first deck 1 and one end of the bottom of the second deck 2. One end of the two first leaf pieces 11 is rotatably connected by a first torsion spring 8. Each first leaf piece 11 is rotatably connected to a second leaf piece 12 by a second torsion spring 9. The first leaf pieces 11 and the second leaf pieces 12 are rotatably connected by a pin 10.

[0027] The axis of relative rotation of the first sheet 11 and the second sheet 12 is perpendicular to the axis of relative rotation of the two first sheets 11, and the axis of the pin 10 is perpendicular to the axis of relative rotation of the first sheet 11 and the second sheet 12.

[0028] The bottom of the first deck 1 is provided with a battery 6 and a control system. The control system is electrically connected to the battery 6 and the electric pulley, respectively. The battery 6 is electrically connected to the electric pulley.

[0029] Specifically, the control system includes a controller 7, an acceleration sensor, and a pressure sensor, wherein the controller 7 is connected to the acceleration sensor, the pressure sensor, the battery 6, and the electric pulley, respectively.

[0030] Specifically, the electric pulley includes a drive wheel 4 and a driven wheel 5. The controller 7 and the battery 6 are connected to the drive wheel 4. The drive wheel 4 is located at the bottom of the first deck 1, and the driven wheel 5 is located at the bottom of the second deck 2. More specifically, the drive wheel 4 includes a pulley and a drive motor. The output end of the drive motor is coaxially connected to the pulley, and the drive motor is connected to both the controller 7 and the battery 6.

[0031] When a user steps onto the skateboard and begins to slide, the pressure sensor detects the pressure, and the accelerometer detects the change in speed. Both sensors simultaneously transmit signals to the controller 7. The controller 7 then controls the battery 6 to supply power to the drive wheels 4, causing them to rotate and powering on the electric skateboard. When the user stops sliding, and the accelerometer does not detect any change in speed within a preset time, the controller 7 stops the battery 6 from supplying power to the drive wheels 4, powering off the electric skateboard.

[0032] Specifically, the first sheet 11 and the second sheet 12 are located at the ends of the first deck 1 and the second deck 2 along their length, respectively. The axis of relative rotation of the two first sheets 11 is aligned with the width direction of the first deck 1 and the second deck 2, and the axis of relative rotation of the second sheet 12 with respect to the first sheet 11 is aligned with the length direction of the first deck 1 and the second deck 2. The relative rotation angle of the two first sheets 11 is 0-180°, the relative rotation angle of the first sheet 11 and the second sheet 12 is 0-90°, and the relative rotation angle of the two second sheets 12 is 0-180°.

[0033] When the skateboard is folded, the first leaf 11 and the second leaf 12 are parallel, and the included angle between the two first leaf 11s is close to 0°. At this time, both the first torsion spring 8 and the second torsion spring 9 have the elastic force generated when returning to their original shape, but the elastic force of the first torsion spring 8 is greater than that of the second torsion spring 9. The elastic force of the first torsion spring 8 can be used to lock the skateboard when it is folded. When the skateboard is unfolded, the two first leaf 11s are on the same plane, and the first leaf 11 is perpendicular to the second leaf 12. The two second leaf 12s are on the same plane, and the second torsion spring 9 is in its natural state. After the two second leaf 12s are perpendicular to the first leaf 11s, the ends of the two second leaf 12s that meet interfere with each other in the relative rotation direction of the two first leaf 11s, thereby limiting the rotation of the two first leaf 11s and preventing the first deck 1 and the second deck 2 from folding under the action of the first torsion spring 8.

[0034] When the skateboard needs to be unfolded, the user applies force to the first deck 1 and the second deck 2, causing the two decks to unfold under the applied force; when the skateboard needs to be folded, the two second plates 12 are rotated, causing the second plates 12 to rotate towards their corresponding first plates 11, releasing the limiting effect of the second plates 12, and causing the two decks to fold under the action of the first torsion spring 8.

[0035] Specifically, the first deck 1 and the second deck 2 are connected by two hinges 3, which are symmetrically arranged.

[0036] Specifically, the first leaf 11 is a right-angled trapezoid, with the high sides of the two first leaf 11s parallel and rotatably connected. The second leaf 12 is rectangular, with the long side of the second leaf 12 parallel and rotatably connected to the long base side of the first leaf 11. The wide sides of the two second leaf 12s at their closest ends are rotatably connected. The two hinges 3 improve the strength and stability of the connection between the two decks.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable portable carbon fiber composite electric skateboard, comprising a first deck (1), a second deck (2), and a hinge (3), wherein electric wheels are provided at the bottom of both the first deck (1) and the second deck (2), characterized in that: The hinge (3) includes two first leaf pieces (11) and a second leaf piece (12). The two first leaf pieces (11) are respectively fixed to one end of the bottom of the first deck (1) and one end of the bottom of the second deck (2). One end of the two first leaf pieces (11) is rotatably connected by a first torsion spring (8). Each first leaf piece (11) is rotatably connected by a second torsion spring (9). The first leaf piece (11) and the second leaf piece (12) are rotatably connected by a pin (10). The axis of relative rotation of the first sheet (11) and the second sheet (12) is perpendicular to the axis of relative rotation of the two first sheets (11), and the axis of the pin (10) is perpendicular to the axis of relative rotation of the first sheet (11) and the second sheet (12). The bottom of the first deck (1) is provided with a battery (6) and a control system. The control system is electrically connected to the battery (6) and the electric pulley respectively. The battery (6) is electrically connected to the electric pulley.

2. The foldable portable carbon fiber composite electric skateboard according to claim 1, characterized in that: The first deck (1) and the second deck (2) are connected by two hinges (3), which are symmetrically arranged.

3. A foldable portable carbon fiber composite electric skateboard according to claim 1 or 2, characterized in that: The first page (11) is a right trapezoid, and the high sides of the two first pages (11) are parallel and rotatably connected. The second page (12) is a rectangle, and the long side of the second page (12) is parallel and rotatably connected to the long bottom side of the first page (11). The wide sides of the two second pages (12) are rotatably connected to each other at one end.

4. A foldable portable carbon fiber composite electric skateboard according to claim 1, characterized in that: The control system includes a controller (7), an acceleration sensor and a pressure sensor, and the controller (7) is connected to the acceleration sensor, the pressure sensor, the battery (6) and the electric pulley respectively.

5. A foldable portable carbon fiber composite electric skateboard according to claim 1, characterized in that: The first deck (1) and the second deck (2) are of the same length.

6. A foldable portable carbon fiber composite electric skateboard according to claim 1 or 5, characterized in that: The distance between the electric pulley and the hinge (3) on the first deck (1) is less than the distance between the electric pulley and the hinge (3) on the second deck (2).

7. A foldable portable carbon fiber composite electric skateboard according to claim 1, characterized in that: The relative rotation angle of the two first leaf pieces (11) is 0-180°, the relative rotation angle of the first leaf piece (11) and the second leaf piece (12) is 0-90°, and the relative rotation angle of the two second leaf pieces (12) is 0-180°.

8. A foldable portable carbon fiber composite electric skateboard according to claim 1, characterized in that: The first deck (1) and the second deck (2) are both made of graphene-modified carbon fiber / epoxy resin composite material.

9. A foldable portable carbon fiber composite electric skateboard according to claim 1, characterized in that: The hinge (3) is made of alloy steel.

Images