Amphibious bicycle

Abstract

The present invention relates to an amphibious bicycle, and more particularly, to an amphibious bicycle comprising: a first floating unit which is attached to a front wheel frame that rotates together with a handle, and which floats the front wheel frame by being expanded by buoyancy when entering water; the second floating unit is mounted on the rear wheel frame and expands due to buoyancy when entering water, so that the rear wheel frame floats; the pushing unit is pushed forwards when the amphibious bicycle enters water; and the steering unit can change the direction when the bicycle advances in water, and after the bicycle travels on the land, the bicycle can directly enter the water to move without additional operation or replacement of parts.

Description

Technical Field

[0001] The present invention relates to a bicycle, and more particularly to an amphibious bicycle that can be used on land and on water, wherein the volume or width of the bicycle can be minimized when used on land, and the buoyancy and propulsion can be maximized when used on water, thereby being able to float on both land and water, and being able to directly enter water and move in a riding state without requiring additional operation or replacement or additional components after traveling on land. Background Art

[0002] Generally speaking, bicycles are a useful leisure tool or means of transportation for modern people in terms of sporting effects and available space.

[0003] Therefore, in order to be able to ride bicycles freely on land and water, many people have tried to develop amphibious bicycles and conducted research in various directions.

[0004] As a typical example of an amphibious bicycle, air bags are installed on both sides or around the bicycle so that it floats on the water surface and moves by generating a propulsion force by rotating the pedals.

[0005] However, when this amphibious bicycle is used on the ground, it is used in a state where the airbag is installed, which causes a problem that the center of gravity is unstable and it is almost impossible to travel.

[0006] Even if it is drivable, the excessive width will cause inconvenience to other pedestrians or movers. Even if the airbag is separated from the ground, it cannot avoid contact with the ground and damage, so there is a problem that it cannot be used in water.

[0007] Furthermore, in order to switch between the ground running mode and the water running mode, it is necessary to remove or attach additional devices after the bicycle stops, thus causing inconvenience.

[0008] Therefore, it is necessary to develop an amphibious bicycle that can travel on the ground and in the water without requiring additional operation or replacement or additional components during riding. Summary of the invention

[0009] Technical issues

[0010] The present invention is proposed to solve the above problems. A first floating unit that is folded downward when on the ground and unfolded to both sides due to buoyancy when on the water is arranged on the front wheel frame, and a second floating unit is arranged on the rear wheel frame. The bicycle can float on both land and water. When the bicycle is traveling on land, it can directly enter the water and move without additional operation or replacement or additional components, thereby realizing amphibious travel.

[0011] Furthermore, an object of the present invention is to provide an amphibious bicycle having a propulsion unit with a plurality of rotors and a motor on a rear wheel rotated by pedals, thereby generating propulsion force even on water.

[0012] Means of solving the problem

[0013] In order to solve the technical problem, the present invention provides an amphibious bicycle, which is characterized by comprising: a first floating unit, which is installed on a front wheel frame that rotates together with a handle, and is unfolded due to buoyancy when entering water, so that the front wheel frame floats; a second floating unit, which is installed on the rear wheel frame, and is unfolded due to buoyancy when entering water, so that the rear wheel frame floats; a propulsion unit, which propels the amphibious bicycle forward when entering water; and a steering unit, which can change direction when the bicycle moves forward in the water, so that after the bicycle travels on land, it can directly enter the water and move without additional operation or replacement of parts.

[0014] Furthermore, the present invention is characterized in that the first floating unit comprises: a first base frame 100, fixed to the front wheel frame; a first bracket 120, rotatably arranged on the first base frame and rotating up and down; a first airbag 140, mounted on the first bracket 120, rotating upward and unfolding under the action of buoyancy, and rotating downward and folding after the buoyancy is removed; a first hinge shaft 121, connected to the first bracket 120, for making it hinge and rotate relative to the first base frame,

[0015] The second floating unit includes: a second base frame 200, fixed to the rear wheel frame; a second bracket 220, which is rotatably arranged on the second base frame and rotates up and down; a second airbag 240, installed on the second bracket 220, rotates upward and unfolds under the action of buoyancy, and rotates downward and folds after the buoyancy is removed; a second hinge shaft 221, connected to the second bracket 220, used to enable it to perform hinge rotation relative to the second base frame.

[0016] At this time, the present invention is characterized in that after the first airbag and the second airbag are deployed upward due to buoyancy after entering the water, the lower parts of the first airbag and the second airbag are located below the seat 90 of the bicycle and are arranged above a first center line 91 that connects the centers of the front wheel and the rear wheel with a line. When floating by the first airbag and the second airbag, the position of the water surface is lower than the seat, and the first center line is arranged at a position lower than the water surface, so as to be stably pushed after entering the water.

[0017] Furthermore, the present invention is characterized in that the propulsion unit includes: a submersible motor 300, which is arranged at any position of the rear wheel, a rotating wing 320, which is connected to the submersible motor, a battery 340, which supplies power to the submersible motor, and a control unit 360, which supplies power to the submersible motor, and controls the rotational force of the submersible motor by adjusting the power supply amount. The control unit adjusts the power supply supplied to the submersible motor to control the rotational force of the submersible motor, thereby controlling the speed of the bicycle in water.

[0018] Furthermore, the present invention is characterized in that when the steering unit observes the bicycle from above, the line connecting the front wheel and the rear wheel is called the second center line 92, and the wing shaft 321 of the assembled rotating wing 320 performs a hinge motion to define the left and right sides of the second center line 92 from the perspective of the rider, and the rotating wing is aligned with the second center line to make the bicycle go straight, or the rotating wing is configured to the left side of the second center line to make the bicycle turn left, or the rotating wing is configured to the right side of the second center line to make the bicycle turn right, so that steering can be achieved in water, that is, the bicycle can go straight, turn left or turn right.

[0019] Furthermore, a motor module including the submersible motor 300, a wing shaft 321 directly connected to the shaft of the submersible motor, and a rotating wing 320 assembled at one end of the wing shaft is installed on a motor bracket 400. The motor bracket 400 is hingedly assembled on an assembly bracket 410 fixed to the frame of the bicycle. As the motor bracket 400 performs hinge movement, the rotating wing is configured to the left or right side of the second center line.

[0020] At this time, the present invention is characterized in that the motor bracket is connected to the assembly bracket fixed on the bicycle frame through the third hinge shaft 430, and the motor bracket is divided into a left part and a right part relative to the second center line. The 11th handle 440 is connected to any position of the left part, and the 21st handle 450 is connected to any position of the right part. Pulling the 11th handle toward the seat will cause the motor bracket to rotate clockwise around the third hinge shaft so that the rotating wing is facing the left side of the second center line. Pulling the 21st handle toward the seat will cause the motor bracket to rotate counterclockwise around the third hinge shaft so that the rotating wing is configured to face the right side of the second center line.

[0021] Furthermore, the present invention is characterized in that it comprises a rotating frame 500 connected to the central axis of the front wheel and the handle 70 for adjusting the direction, and the front wheel is rotated left and right according to the left and right rotation of the handle.

[0022] The rotating frame is divided into a left part and a right part relative to the second center line, a 12th handle 441 is connected to any position of the left part of the rotating frame, a 22nd handle 451 is connected to any position of the right part of the rotating frame, the 12th handle 441 is connected to the 11th handle 440 or the 21st handle 450, and the 22nd handle 451 is connected to the 11th handle 440 or the 21st handle 450, when the handle rotates left and right, the rotating frame rotates left and right, as the rotating frame rotates left and right, the 12th handle and the 22nd handle connected to the left part or the right part move forward and backward, as the 12th handle and the 22nd handle move forward and backward, the 11th handle and the 12th handle move forward and backward, so that the motor bracket rotates clockwise or counterclockwise around the third hinge axis.

[0023] Furthermore, the present invention is characterized in that it comprises: a first drawstring 443 for connecting a 12th handle 441 disposed at any position of the left side of the rotating frame and a 21st handle 450 disposed at any position of the right side of the motor bracket,

[0024] The second drawstring 453 is used to connect the 22nd handle 451 disposed at any position on the right side of the rotating frame and the 11th handle 440 disposed at any position on the left side of the motor bracket 400.

[0025] When the rotating frame 500 rotates clockwise, the 12th handle 441 moves forward, and the first drawstring 443 moves forward to pull the 21st handle 450 forward, so that the motor bracket rotates counterclockwise around the third hinge axis 430, so that the rotating wing is arranged toward the right side of the second center line 92.

[0026] When the rotating frame rotates counterclockwise, the 22nd handle 451 moves forward, and the second drawstring 453 moves forward to pull the 11th handle 440 forward, so that the motor bracket rotates clockwise around the third hinge axis, and the rotating wing is configured toward the left side of the second center line, so that the bicycle moves along the rotation direction of the rotating frame.

[0027] At this time, the present invention is characterized in that the first drawstring 443 and the second drawstring 453 are arranged to cross each other and have a cross ring 460 that crosses at one position, so that the first drawstring and the second drawstring cross in the cross ring.

[0028] Furthermore, the present invention is characterized in that one end of the first drawstring 443 has an 11th connection portion 445 and the other end has a 12th connection portion 446, and one end of the second drawstring 453 has a 21st connection portion 455 and the other end has a 22nd connection portion 456.

[0029] The 11th connection part 445 is connected to the 12th handle 441, the 12th connection part 446 is connected to the 21st handle 450, the 21st connection part 455 is connected to the 22nd handle 451, and the 22nd connection part 456 is connected to the 11th handle 440.

[0030] The 11th connecting portion, the 12th connecting portion, the 21st connecting portion, and the 22nd connecting portion are detachably formed in a ring shape so that the first drawstring and the second drawstring can be attached and detached.

[0031] Effects of the Invention

[0032] According to an embodiment of the present application, an amphibious bicycle is provided. According to the present invention constructed as above, when the bicycle is traveling on land, it can directly enter the water and move without additional operation or replacement or additional components. In the amphibious bicycle, a first floating unit that is folded downward when on the ground and unfolded to both sides due to buoyancy when on the water is arranged on the front wheel frame, and a second floating unit is arranged on the rear wheel frame. The bicycle can float on both land and water. When the bicycle is traveling on land, it can directly enter the water and move in the state of riding the bicycle without additional operation or replacement or additional components, thereby realizing amphibious travel, and the bicycle has a propulsion unit with multiple rotating wings and a motor on the rear wheel rotated by pedals, thereby generating propulsion force on water. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1a FIG. 1 is a diagram showing an example of a first floating unit of the amphibious bicycle according to the present invention.

[0034] Figure 1b This is a diagram showing an example of the second floating unit (b) of the amphibious bicycle according to the present invention.

[0035] Figure 2 It is a plan view of the working state of the airbags of each floating unit of the amphibious bicycle according to the present invention.

[0036] Figure 3 FIG. 2 is a diagram showing a propulsion unit of an amphibious bicycle according to the present invention.

[0037] Figure 4 FIG. 2 is a diagram showing a steering unit of an amphibious bicycle according to the present invention.

[0038] Figure 5The figure shows a state where the steering unit is connected to the pushing unit according to the present invention. DETAILED DESCRIPTION

[0039] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical concept of the present invention is not limited to the embodiments described herein, but may also be embodied in other ways. On the contrary, the embodiments introduced herein are provided to make the disclosed contents more perfect and complete, and to enable those skilled in the art to fully understand the concept of the present invention.

[0040] In this specification, when a component is located on another component, it means that the component can be directly formed on the other component, or a third component can be sandwiched between them. Also, in the drawings, the thickness of the film and the region is exaggerated for effective description of the technical content.

[0041] Furthermore, in various embodiments of this specification, the terms first, second, third, etc. are used to describe various components, but these components should not be limited to these terms. These terms are only used to distinguish a certain component from other components. Therefore, the first component mentioned in a certain embodiment may be referred to as the second component in other embodiments. The various embodiments described and illustrated here also include their complementary embodiments. Furthermore, in this specification, "and / or" is used as including at least one of the components listed before and after.

[0042] Singular expressions in the specification shall include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "including" or "having" are intended to specify the existence of features, quantities, steps, components or combinations thereof recorded in the specification, and should not be understood as excluding the existence or additional possibility of one or more other features, quantities, steps, components or combinations thereof.

[0043] Also, in the following description of the present invention, if it is deemed that the detailed description of related known functions or components may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

[0044] According to an embodiment of the present invention, an amphibious bicycle is provided. According to the present invention constructed as above, when the bicycle is traveling on land, it can directly enter the water and move without additional operation or replacement or additional components. In the amphibious bicycle, a first floating unit that is folded downward when on the ground and unfolded to both sides due to buoyancy when on the water is arranged on the front wheel frame, and a second floating unit is arranged on the rear wheel frame. The bicycle can float on both land and water. When the bicycle is traveling on land, it can directly enter the water and move in the state of riding the bicycle without additional operation or replacement or additional components, thereby realizing amphibious travel, and the bicycle has a propulsion unit with multiple rotating wings and a motor on the rear wheel rotated by pedals, thereby generating propulsion force on water.

[0045] Hereinafter, reference will be made to Figures 1 to Figure 5 The bicycle according to the present invention is an amphibious bicycle that can move in water without any additional operation or replacement or additional components when traveling on land.

[0046] The amphibious bicycle of the present invention comprises: a first floating unit, which is installed on a front wheel frame rotating together with a handle, and is unfolded due to buoyancy when entering water, so that the front wheel frame floats; a second floating unit, which is installed on a rear wheel frame, and is unfolded due to buoyancy when entering water, so that the rear wheel frame floats; a propulsion unit, which propels the amphibious bicycle forward when entering water; and a steering unit, which can change the direction when the bicycle moves forward in water.

[0047] like Figure 1a and Figure 1b As shown, the first floating unit and the second floating unit work on the same principle. Specifically, Figure 1a As shown, in the first floating unit 95, the second airbags 140 respectively installed on the left and right sides of the front wheel 20, when entering the water with the first hinge shafts 121 respectively installed on the left and right sides as the center, expand outward around the front wheel due to buoyancy.

[0048] Likewise, Figure 1b As shown, in the second floating unit 195, the second airbags 240 respectively installed on the left and right sides of the rear wheel 30 expand outward around the front wheel when entering the water with the second hinge shafts 221 respectively installed on the left and right sides as the center, so as to float the bicycle frame.

[0049] Figure 2 The top view of the first floating unit and the second floating unit of the present invention showing the working state is preferably on the ground. Figure 2 As shown in (a), the airbags of each floating unit are folded; when entering the water, due to the buoyancy, Figure 2 The airbag shown in (b) is deployed outwardly, so that the bicycle frame of the present invention floats.

[0050] Specifically, the first floating unit includes: a first base frame 100, fixed to the front wheel frame; a first bracket 120, rotatably set on the first base frame and rotating up and down; a first airbag 140, installed on the first bracket 120, rotates upward and unfolds under the action of buoyancy, and rotates downward and folds after the buoyancy is removed; a first hinge shaft 121, connected to the first bracket 120, used to enable it to perform hinge rotation relative to the first base frame.

[0051] The second floating unit includes: a second base frame 200, fixed to the rear wheel frame; a second bracket 220, which is rotatably arranged on the second base frame and rotates up and down; a second airbag 240, installed on the second bracket 220, rotates upward and unfolds under the action of buoyancy, and rotates downward and folds after the buoyancy is removed; a second hinge shaft 221, connected to the second bracket 220, used to enable it to perform hinge rotation relative to the second base frame.

[0052] As shown in Figure 1 to Figure 3 As shown, after the first airbag and the second airbag rotate toward the outer sides of the frame with the hinge axis as the center due to buoyancy after entering the water and unfold upward, the lower parts of the first airbag and the second airbag are located below the seat 90 of the bicycle, and are arranged on a first center line 91 that connects the centers of the front wheel and the rear wheel with a line. When floating by the first airbag and the second airbag, the position of the water surface is lower than the seat, and the first center line is arranged at a position lower than the water surface, so that the bicycle is stably pushed after entering the water.

[0053] If the first and second airbags are deployed with their bottoms below the first center line 91, there is a risk of capsizing; if the first and second airbags are deployed with their bottoms above the seat, the rider's buttocks will be below the water surface, causing body resistance that makes the bicycle difficult to push, and the body will be soaked by water, making it difficult to move. Therefore, when the first and second airbags are deployed, their bottoms should be higher than the first center line and lower than the seat so that they can tilt stably without capsizing and the rider can ride comfortably.

[0054] Figure 3 The propulsion unit shown includes: a submersible motor 300, which is arranged at any position of the rear wheel; a rotating wing 320, which is connected to the submersible motor; a battery 340, which supplies power to the submersible motor; and a control unit 360, which supplies power to the submersible motor and controls the rotational force of the submersible motor by adjusting the power supply. The control unit adjusts the power supply supplied to the submersible motor to control the rotational force of the submersible motor, thereby controlling the speed of the bicycle in water.

[0055] At this time, the control unit changes the rotation speed of the submersible motor by adjusting the power intensity transmitted to the submersible motor, thereby adjusting the speed of the bicycle, and can also reverse the rotation direction of the submersible motor by changing the polarity of the battery or various methods to reverse the submersible motor.

[0056] In addition, a motor module including the submersible motor 300, the wing shaft 321 directly connected to the shaft of the submersible motor, and the rotating wing 320 assembled at one end of the wing shaft is installed on the motor bracket 400, and the motor bracket performs hinge motion through the third hinge shaft 430, so that the submersible motor 300, the wing shaft 321 directly connected to the shaft of the submersible motor, and the rotating wing 320 assembled at one end of the wing shaft can perform hinge motion as a whole.

[0057] like Figure 4 As shown, when the bicycle is observed from above, a line connecting the front wheel and the rear wheel is called a second center line 92 , and the rotating wing 320 performs a hinge motion through the third hinge shaft 430 .

[0058] At this time, the present invention is characterized in that when the left and right sides of the second center line 92 are defined from the perspective of the rider, as shown in FIG. Figure 4 (b), the rotor is aligned with the second center line, so that the bicycle moves straight, or Figure 4 As shown in (a), the rotor is arranged toward the left side of the second center line (as shown in Figure 4 As shown, the bicycle is configured toward the lower side of the second center line to turn left, or as Figure 4 As shown in (c), the rotary wing is arranged toward the right side of the second center line (as shown in Figure 4 As shown, it is configured toward the upper side of the second center line), so that the bicycle is moved to the right, so that the following turns can be achieved in the water, namely, the bicycle goes straight, turns left or turns right.

[0059] Furthermore, the motor bracket 400 shown in the figure is hingedly assembled with the assembly bracket 410 fixed on the bicycle frame, and the motor bracket 400 can adjust the rotating wing toward the Figure 3 The configuration is performed on the left or right side of the second center line 92.

[0060] Figure 5 The figure shows the structure in which the steering unit is connected to the pushing unit so as to push the pushing unit toward a desired direction.

[0061] At this time, the motor bracket 400 is connected with the assembly bracket 500 and the third hinge shaft 430 fixed on the bicycle frame. When the motor bracket is divided into a left part and a right part relative to the second center line 92, an 11th handle 440 is connected to any position of the left part, and a 21st handle 450 is connected to any position of the right part. Pulling the 11th handle toward the seat will cause the motor bracket to rotate clockwise around the third hinge shaft, so that the rotating wing is facing the left side of the second center line; pulling the 21st handle toward the seat 90 will cause the motor bracket to rotate counterclockwise around the third hinge shaft, thereby causing the rotating wing to be configured to face the right side of the second center line, thereby adjusting the left and right directions.

[0062] And, if Figure 5 As shown, the steering unit includes a rotating frame 500 connected to the central axis of the front wheel and a handle 70 for adjusting the direction, and the rotating frame can rotate the front wheel left and right according to the left and right rotation of the handle.

[0063] At this time, the rotating frame 500 is divided into a left part and a right part relative to the second center line 92, and a 12th handle 441 is connected to any position of the left part of the rotating frame, and a 22nd handle 451 is connected to any position of the right part of the rotating frame.

[0064] At this time, the 12th handle 441 is connected to the 21st handle 450, and the 22nd handle 451 is connected to the 11th handle 440. When the handles rotate left and right, the rotating frame will also rotate left and right. As the rotating frame rotates left and right, the 12th handle and the 22nd handle connected to the left part or the right part will move forward and backward.

[0065] Finally, the 12th handle 441 and the 22nd handle 451 move forward and backward in a direction horizontal to the second center line 92, so that the 11th handle 440 and the 12th handle 450 move forward and backward, and the motor bracket rotates clockwise or counterclockwise around the third hinge axis.

[0066] To this end, it includes: a first drawstring 443, used to connect the 12th handle 441 configured at any position of the left side portion of the rotating frame and the 21st handle 450 configured at any position of the right side portion of the motor bracket; a second drawstring 453, used to connect the 22nd handle 451 configured at any position of the right side portion of the rotating frame and the 11th handle 440 configured at any position of the left side portion of the motor bracket 400.

[0067] When the rotating frame 500 rotates clockwise, the 12th handle 441 moves forward, and the first drawstring 443 moves forward to pull the 21st handle 450 forward, so that the motor bracket rotates counterclockwise around the third hinge axis 430, so that the rotating wing is configured toward the right side of the second center line 92.

[0068] Furthermore, when the rotating frame rotates counterclockwise, the 22nd handle 451 moves forward, and the second drawstring 453 moves forward to pull the 11th handle 440 forward, so that the motor bracket 400 rotates clockwise around the third hinge axis, and the rotating wing is configured toward the left side of the second center line, thereby moving the bicycle along the rotation direction of the rotating frame.

[0069] 6, the present invention is characterized in that the first drawstring 443 and the second drawstring 453 are arranged to cross each other and have a cross ring 460 that crosses at one position, so that the first drawstring and the second drawstring cross in the cross ring.

[0070] Furthermore, the first drawstring 443 has an 11th connection portion 445 at one end and a 12th connection portion 446 at the other end, and the second drawstring 453 has a 21st connection portion 455 at one end and a 22nd connection portion 456 at the other end, thereby, the 11th connection portion 445 is connected to the 12th handle 441, the 12th connection portion 446 is connected to the 21st handle 450, the 21st connection portion 455 is connected to the 22nd handle 451, and the 22nd connection portion 456 is connected to the 11th handle 440.

[0071] At this time, it is preferred that the 11th connecting portion, the 12th connecting portion, the 21st connecting portion, and the 22nd connecting portion are detachably formed in a ring shape so that the first drawstring and the second drawstring can be attached and detached.

[0072] Thus, the following amphibious bicycle is provided. The amphibious bicycle of the present invention can float both on the land and on the water, and after traveling on land, it can directly enter the water and move without additional operation or replacement or additional components, thereby realizing amphibious travel, and has a propulsion unit with multiple rotating wings and a motor on the rear wheel rotated by pedals, thereby generating propulsion force on the water.

[0073] The preferred embodiments of the present invention are described in detail above, but the scope of the present invention is not limited to the specific embodiments and should be interpreted according to the appended claims. Moreover, it should be understood by those skilled in the art that many modifications and changes can be made without exceeding the scope of the present invention.

[0074] Description of Reference Numerals

[0075] 10: Amphibious bicycle 20: Front wheel

[0076] 30: rear wheel 70: handle

[0077] 90: Seat 91: First center line

[0078] 92: Second center line 95: First floating unit

[0079] 100: first base frame 120: first bracket

[0080] 121: First hinge axis 140: First airbag

[0081] 195: second floating unit 200: second base frame

[0082] 220: second bracket 221: second hinge axis

[0083] 240: Second airbag 300: Submersible motor

[0084] 320: Rotating wing 321: Wing shaft

[0085] 340: Battery 360: Control unit

[0086] 400: Motor bracket 410: Assembly bracket

[0087] 430: Third hinge axis 440: 11th handle

[0088] 441: 12th handle 443: First drawstring

[0089] 445: 11th connection part 446: 12th connection part

[0090] 450: 21st handle 451: 22nd handle

[0091] 453: Second drawstring 455: 21st connection part

[0092] 456: 22nd connection part 460: Cross ring

[0093] 500: Rotating stand

Claims

1. An amphibious bicycle, characterized in that: include: The first floating unit is mounted on the front wheel frame which rotates together with the handle, and is deployed due to buoyancy when entering the water, so that the front wheel frame floats; The second floating unit is installed on the rear wheel frame, and is deployed due to buoyancy when entering the water, so that the rear wheel frame floats; a propulsion unit for propulsing the amphibious bicycle forward when the amphibious bicycle enters the water; a steering unit capable of changing direction when the bicycle is moving through water, After the bicycle is driven on land, it can be moved directly into the water without any additional operation or replacement of parts.

2. The amphibious bicycle according to claim 1, characterized in that: The first floating unit comprises: A first base frame (100) fixed to the front wheel frame; A first bracket (120) is rotatably arranged on the first base frame and rotates up and down; A first airbag (140) is mounted on the first bracket (120), rotates upward and unfolds under the action of buoyancy, and rotates downward and folds after the buoyancy is removed; A first hinge shaft (121), connected to the first bracket (120), and used to enable the first bracket (120) to perform hinge rotation relative to the first base frame; The second floating unit comprises: A second base frame (200) fixed to the rear wheel frame; A second bracket (220) is rotatably arranged on the second base frame and rotates up and down; A second airbag (240) is mounted on the second bracket (220), rotates upward and unfolds under the action of buoyancy, and rotates downward and folds after the buoyancy is removed; The second hinge shaft (221) is connected to the second bracket (220) and is used to enable the second bracket (220) to perform hinge rotation relative to the second base frame.

3. The amphibious bicycle according to claim 2, characterized in that: After the first airbag and the second airbag are deployed upward due to buoyancy after entering the water, the lower parts of the first airbag and the second airbag are located below the seat (90) of the bicycle and are arranged on a first center line (91) connecting the centers of the front wheel and the rear wheel by a line. When floating by the first airbag and the second airbag, the water surface is lower than the seat, and the first center line is configured at a position below the water surface, so that it is stably pushed after entering the water. After the bicycle is driven on land, it can directly enter the water and move without additional operation or replacement or additional components.

4. The amphibious bicycle according to claim 3, characterized in that: The pushing unit comprises: The submersible motor (300) is arranged at any position of the rear wheel. A rotary wing (320) is connected to the submersible motor. A battery (340) supplies power to the submersible motor, The control unit (360) supplies power to the submersible motor and controls the rotational force of the submersible motor by adjusting the power supply. The control unit adjusts the amount of power supplied to the submersible motor to control the rotational force of the submersible motor, thereby controlling the speed of the bicycle in the water. After the bicycle is driven on land, it can directly enter the water and move without additional operation or replacement or additional components.

5. The amphibious bicycle according to claim 4, characterized in that: When the steering unit observes the bicycle from above, a line connecting the front wheel and the rear wheel is called a second center line (92), and the wing shaft (321) of the rotating wing (320) is assembled to perform hinge motion. defining a left side and a right side of the second center line (92) from the rider's perspective, The rotor is aligned with the second center line, so that the bicycle moves straight, or The rotating wing is arranged toward the left side of the second center line, so that the bicycle turns left, or The rotating wing is arranged toward the right side of the second center line, so that the bicycle can turn right and can realize steering in water, that is, the bicycle can go straight, turn left or turn right. After the bicycle is driven on land, it can directly enter the water and move without additional operation or replacement or additional components.

6. The amphibious bicycle according to claim 5, characterized in that: A motor module including the submersible motor (300), a wing shaft (321) directly connected to the shaft of the submersible motor, and a rotary wing (320) assembled at one end of the wing shaft is mounted on a motor bracket (400). The motor bracket (400) is hingedly assembled on an assembly bracket (410) fixed to the frame of the bicycle. As the motor bracket (400) performs hinged movement, the rotary wing is configured toward the left or right side of the second center line. After the bicycle is driven on land, it can directly enter the water and move without additional operation or replacement or additional components.

7. The amphibious bicycle according to claim 6, characterized in that: The motor bracket is connected to the assembly bracket fixed on the bicycle frame via a third hinge shaft (430). The motor bracket is divided into a left part and a right part relative to the second center line, An 11th handle (440) is connected to any position of the left part, and a 21st handle (450) is connected to any position of the right part. Pulling the 11th handle toward the seat causes the motor bracket to rotate clockwise around the third hinge axis, causing the rotary wing to face the left side of the second center line. Pulling the 21st handle toward the seat will cause the motor bracket to rotate counterclockwise around the third hinge axis, so that the rotary wing is configured toward the right side of the second center line. After the bicycle is driven on land, it can directly enter the water and move without additional operation or replacement or additional components.

8. The amphibious bicycle according to claim 7, characterized in that: It comprises a rotating frame (500) connected to the central axis of the front wheel and a handle (70) for adjusting the direction, and the front wheel is rotated left and right according to the left and right rotation of the handle (70). The rotating frame (500) is divided into a left part and a right part relative to the second center line, A twelfth handle (441) is connected to any position of the left side of the rotating frame, and a 22nd handle (451) is connected to any position of the right side of the rotating frame. The twelfth handle (441) is connected to the eleventh handle (440) or the twenty-first handle (450), The 22nd handle (451) is connected to the 11th handle (440) or the 21st handle (450), When the handle rotates left and right, the rotating frame rotates left and right. As the rotating frame rotates left and right, the 12th handle and the 22nd handle connected to the left part or the right part move forward and backward. As the 12th handle and the 22nd handle move forward and backward, the 11th handle and the 12th handle move forward and backward, and the motor bracket rotates clockwise or counterclockwise around the third hinge axis. After the bicycle is driven on land, it can directly enter the water and move without additional operation or replacement or additional components.

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