A pneumatic assisted vehicle

Abstract

The present invention discloses a pneumatic assisted vehicle, which includes a vehicle body and wheels. The wheels are arranged at the bottom of the vehicle body and the vehicle moves through the wheels. A storage container and a gas power device are provided on the vehicle body. The storage container supplies gas to the gas power device, and the gas power device drives the wheels to rotate. The gas power device includes: an outer ring, on the inner circumferential surface of which a plurality of driving recesses are provided in the circumferential direction; a core body, which is coaxially arranged inside the outer ring and can rotate relative to the outer ring. At least one nozzle, at least one exhaust port, and at least one primary flow channel located between the nozzle and the exhaust port are provided on the outer circumferential surface of the core body; at least one intake channel, which communicates with at least one nozzle; and at least one exhaust channel, which communicates with at least one exhaust port. For the pneumatic assisted vehicle of the present invention, an air drive system is adopted, which does not require consumption of fossil fuels, greatly reduces the use cost, and has no exhaust gas discharged, thus causing no pollution to the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of motorized scooters, and particularly to a pneumatic motorized scooter. Background Art

[0002] China is a large country with a large population and also a large country with high resource consumption. Today, with the accelerating process of urbanization and industrialization, the energy problem has become a bottleneck restricting the rapid and healthy development of China. In the situation where the energy and environmental situation is becoming increasingly severe, electric motorized scooters have become an emerging industry that is highly valued by countries and regions around the world due to their significant advantages of being clean and energy-saving. However, electric motorized scooters also have many defects. For example, the safety of lithium batteries still needs to be improved. The hidden dangers of lithium battery fires, combustion, and even explosions cannot be completely eliminated at present. Collisions of the vehicle may cause the positive and negative electrode materials of the battery to break through the diaphragm, and reasons such as the instantaneously super-high current when the energy is rapidly recharged to the battery during braking will cause the battery to short-circuit and the temperature to rise, leading to combustion and even explosion. The reason for the fire is that collisions and short-circuits cause lithium ions to precipitate, and when they come into contact with air, they will catch fire and burn. In addition, the electrolyte of lithium-ion batteries is an organic electrolyte, and these substances are more likely to catch fire and burn when they come into contact with air. In terms of environmental protection, electric motorized scooters driven by batteries cause serious pollution to the environment.

[0003] In order to overcome the defects of electric motorized scooters, people have begun to research and develop pneumatic motorized scooters. A pneumatic motorized scooter is a compressed air-powered motorized scooter. The compressed air-powered motorized scooter utilizes the process of high-pressure compressed air expanding and doing work in the engine cylinder to push the piston to do work and output power externally, driving the motorized scooter to travel. It does not consume fuel and is a truly zero-emission environmental protection motorized scooter, which can effectively alleviate the serious urban air pollution and the shortage of petroleum resources, and solve the problems of slow energy storage of electric motorized scooters and secondary pollution caused by lead-acid batteries.

[0004] Although existing pneumatic motorized scooters can overcome the defects of electric motorized scooters such as causing air pollution, they still have the deficiencies of low gas utilization rate and poor endurance. Summary of the Invention

[0005] The problem to be solved by the present invention is the low gas utilization rate and poor endurance of existing pneumatic motorized scooters.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A pneumatic motorized scooter provided by the present invention includes a vehicle body and wheels. The wheels are arranged at the bottom of the vehicle body and the vehicle body moves through the wheels. A storage container and a gas power device are provided on the vehicle body. The storage container supplies gas to the gas power device, and the gas power device drives the wheels to rotate; the gas power device includes:

[0008] An outer ring, on the inner circumferential surface of which there are provided a plurality of driving recesses in the circumferential direction;

[0009] A core body, which is coaxially arranged inside the outer ring and can rotate relative to the outer ring. On the outer circumferential surface of the core body, there are provided at least one nozzle, at least one drain port, and at least one secondary flow channel located between the nozzle and the drain port;

[0010] At least one intake channel, which communicates with at least one nozzle; and

[0011] At least one exhaust channel, which communicates with at least one drain port;

[0012] Gas enters from the intake channel, is ejected step by step through the nozzle and the secondary flow channel of the core body, acts on at least two driving recesses in the circumferential direction of the outer ring, generates a thrust on these driving recesses to push the outer ring to rotate and do work, realizing power output. Finally, the gas passes through the drain port of the core body and is discharged through the exhaust channel.

[0013] Furthermore, at least one intake channel, at least one nozzle, at least two driving recesses, at least one secondary flow channel, at least one drain port, and at least one exhaust channel form an independent working unit, and the gas power device includes at least one independent working unit.

[0014] Furthermore, the nozzle and the secondary flow channel on the core body are communicated with the corresponding driving recesses on the outer ring. The secondary flow channels are arranged staggered with the corresponding driving recesses and are communicated in sequence, and the secondary flow channels are arranged along the circumferential direction of the core body or the outer ring.

[0015] Furthermore, the intake channel and the exhaust channel are formed inside the core body.

[0016] Furthermore, the core body includes: an intake channel, which forms a nozzle on the circumferential surface of the core body, and its trend is an arc line extending from the middle to the outside. The nozzle is communicated with the corresponding driving recess on the outer ring to form a first-stage flow channel;

[0017] The secondary flow channel, its trend is an arc line that bends and extends from the edge of the core body inward and then to the edge. Each secondary flow channel is communicated with the two adjacent driving recesses corresponding to the outer ring, and forms an N-stage flow channel along the circumferential direction of the core body, where N is a natural number greater than or equal to 2;

[0018] Each stage of the flow channel and the corresponding driving recess on the outer ring cooperate to form a multi-stage stroke structure with decreasing gas energy.

[0019] Furthermore, the secondary flow channel includes a return channel and a stroke channel that communicate with each other. The return channel is communicated with the corresponding driving recess on the outer ring, and the stroke channel is communicated with another driving recess.

[0020] Furthermore, the trend of the intake channel of the core body is a logarithmic spiral line extending from the middle to the outside. The pole of the logarithmic spiral line is set on the central axis of the core body, and the trend angle of the logarithmic spiral line is 15° - 45°.

[0021] Further, an air intake passage is provided on the core body, and its trend is a logarithmic spiral extending from the middle to the outside. The trend of the stroke passage of the secondary impulse passage is a logarithmic spiral, and the trend of the logarithmic spiral of the stroke passage of the secondary impulse passage is substantially the same as that of the logarithmic spiral of the air intake passage.

[0022] Further, the gas power device further includes a shaft, and the outer ring is coaxially arranged with the core body on the shaft.

[0023] Further, the gas power device further includes a shaft, and the outer ring is coaxially arranged with the core body on the shaft. An air inlet and an air outlet shaft passages are provided on the shaft and are respectively communicated with the air intake passage and the exhaust passage of the core body. The air inlet and air outlet shaft passages in the shaft form an air inlet and an air outlet, and the air inlet and air outlet shaft passages are of a non-connected structure.

[0024] Further, the outer ring is cooperated with the shaft through side plates to form a closed space, and the core body is arranged in the closed space and is fixedly connected to the shaft.

[0025] Further, in the independent work unit, the air intake passage, the nozzle, the driving recess, the secondary impulse passage, the discharge port and the exhaust passage constitute a gas flow path.

[0026] Further, the gas power device includes more than two independent work units to form a multi-stage drive structure, which is arranged along the circumferential direction of the core body or the outer ring.

[0027] Further, more than two driving recesses are provided on the inner ring surface of the outer ring. Each driving recess has a contour bottom surface and a driving surface. The contour line of the contour bottom surface is a logarithmic spiral, and its pole is set at the center of the core body.

[0028] Further, a pneumatic engine includes the gas power device described above, and the gas is a compressed gas or a gas with a certain pressure.

[0029] Further, a continuously variable transmission includes the gas power device described above.

[0030] The gas power device of the present invention has a simple structure, large torque, high rotational speed, high transmission efficiency, low energy consumption, and can be widely applied to various fields such as transportation vehicles, power generation equipment, and other devices that require power output.

[0031] Further, the gas power device drives the wheels to rotate through a transmission mechanism, and a continuously variable transmission is provided on the transmission mechanism.

[0032] Furthermore, the transmission mechanism is a belt transmission mechanism or a chain transmission mechanism.

[0033] The present invention adopts the above technical solutions and has the following beneficial effects:

[0034] 1. The pneumatic assisted vehicle of the present invention adopts an air drive system, which does not consume fossil fuels, greatly reduces the usage cost, and has no exhaust gas emissions, causing no pollution to the environment. It has small resistance and strong endurance.

[0035] 2. The multi-stage flow channels provided in the core body of the present invention, that is, the intake channel serves as the first-stage flow channel, and each impulse flow channel serves as the second, third, fourth... stage flow channels. The gas acts on the driving recesses on the outer circle from the first-stage flow channel. The driving recesses communicate with the second-stage flow channel, then return to the second-stage flow channel and act on another driving recess on the outer circle, and so on until the gas is discharged from the exhaust channel. The whole process proceeds in the forward direction along the rotation direction of the outer circle, with large torque, high transmission efficiency, high gas utilization rate, and the output torque further increases with the increase of the rotational speed.

[0036] 3. The flow channels arranged circumferentially on the core body of the present invention effectively reduce the volume of the overall device and can be flexibly matched with power generation or output devices in various fields. At the same time, the more the intake flow channels are provided on the core body, the lower the overall weight, further improving the output speed and efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic structural diagram of the pneumatic assisted vehicle according to the first embodiment of the present invention.

[0038] Figure 2 is a schematic diagram of the gas power device according to the first embodiment of the present invention.

[0039] Figure 3 is a side view in the axial direction of shaft A according to the first embodiment of the present invention.

[0040] Figure 4 is a side view in the axial direction of shaft B according to the first embodiment of the present invention.

[0041] Figure 5 is a sectional view of the gas power device according to the first embodiment of the present invention.

[0042] Figure 6 is another layout diagram of the gas power device according to the first embodiment of the present invention.

[0043] Figure 7 is a schematic diagram of the gas power device according to the second embodiment of the present invention.

[0044] Figure 8 is a side view in the axial direction of shaft C according to the second embodiment of the present invention.

[0045] Figure 9 is a side view in the axial direction of shaft D according to the second embodiment of the present invention.

[0046] Figure 10 is a radial sectional view of the gas power device according to the second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0047] To further illustrate each embodiment, the present invention provides accompanying drawings. These drawings are a part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0048] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0049] Embodiment 1:

[0050] Please refer to Figures 1 to 5 , a pneumatic assisted vehicle provided in this embodiment, taking a pneumatic bicycle as an example, but not limited thereto, and can also be any conventional assisted vehicle such as a pneumatic motorcycle, which will not be elaborated here. The pneumatic assisted vehicle includes a vehicle body 51 and wheels 52. The wheels 52 are provided at the bottom of the vehicle body 51 and the vehicle body 51 moves through the wheels 52. A storage container 57 (the storage container in this embodiment serves as a gas source and outputs gas. The storage container can contain compressed gas or a substance that is liquid under low temperature conditions) and a gas power device 1 are provided on the vehicle body 51. The storage container supplies gas to the gas power device 1. The gas power device 1 drives the wheels 52 to rotate through a transmission mechanism (which can be any conventional transmission mechanism such as a belt transmission mechanism or a chain transmission mechanism, which will not be elaborated here). Of course, the wheels 52 can also be directly driven by the gas power device 1 to rotate, that is, the outer ring 1 of the gas power device 1 is mechanically connected to the rotating shaft of the wheel or directly formed as the rotating shaft of the wheel. In this embodiment, a continuously variable transmission is also provided on the transmission mechanism to achieve stepless speed regulation.

[0051] As Figure 1 shown, preferably, the gas power device 1 is installed on the rear wheel axle of the vehicle body 51 and connected to the rear wheel hub. The gas power device 1 drives the rear wheel to rotate by connecting to the rear wheel hub, but not limited thereto. The gas power device 1 can also be installed at other positions of the vehicle body 51, depending on actual needs, which will not be elaborated here.

[0052] In this embodiment, the storage container 57 is connected to the intake passage of the gas power device 1 through a trachea via a flow control valve. Preferably, the outlet pipeline of the storage container 57 is connected to the gas power device 1 through a manual regulating valve.

[0053] The gas power device includes an outer ring 1, on the inner circumferential surface of which a plurality of driving recesses 11 are provided in the circumferential direction; a core 3, which is coaxially arranged inside the outer ring 1 and can rotate relative to the outer ring. At least one nozzle 301, at least one discharge port 302, and at least one secondary flow channel 300 located between the nozzle and the discharge port are provided on the outer circumferential surface of the core 3;

[0054] At least one intake channel 31, which communicates with at least one nozzle 301; and

[0055] At least one exhaust channel 310, which communicates with at least one discharge port 302;

[0056] Gas enters from the intake channel 31, and through the sequential ejection of the nozzle 301 of the core 3 and the secondary flow channel 300, acts on at least two driving recesses 11 on the outer ring 1 in the circumferential direction, generates a thrust on these driving recesses 11 to push the outer ring 1 to rotate and do work, realizing continuous power output. Finally, the gas is discharged through the discharge port of the core 3 via the exhaust channel. The gas power device further includes a shaft 2, and the outer ring 1 and the core 3 are coaxially arranged on the shaft 2.

[0057] As Figure 5 shown, the intake channel 31 and the exhaust channel 310 are formed inside the core 3. The nozzle 301 and the secondary flow channel 300 on the core 3 communicate with the corresponding driving recesses 11 of the outer ring 1, wherein the secondary flow channel 300 and the corresponding driving recesses 11 are arranged in an interleaved manner and communicate in sequence, and the secondary flow channel 300 is arranged along the circumferential direction of the core or the outer ring.

[0058] As Figure 5 , the core 3 includes: an intake channel 31, which forms a nozzle 31 on the circumferential surface of the core. Its trend is an arc line extending from the middle to the outside. The nozzle 301 communicates with the corresponding driving recess 11 of the outer ring, forming the first-stage flow channel;

[0059] The secondary flow channel 300, its trend is an arc line that bends and extends from the edge of the core 3 inward and then to the edge. Each secondary flow channel 300 communicates with the two adjacent driving recesses 11 corresponding to the outer ring 1, forming an N-stage flow channel along the circumferential direction of the core, where N is a natural number greater than or equal to 2. It should be noted that: here, if it is a 2-stage flow channel, it includes the first-stage flow channel (intake channel) and the second-stage flow channel (secondary flow channel); if it is a 3-stage flow channel, it includes the first-stage flow channel (intake channel), the second-stage flow channel (secondary flow channel), the third-stage flow channel (another secondary flow channel),...

[0060] Each stage of the flow channel cooperates with the corresponding driving recess of the outer ring to form a multi-stage stroke structure with decreasing gas energy.

[0061] According to the requirements of the load, the gas power device can be designed, and the core 3 can be provided with a 2-stage flow channel, a 3-stage flow channel, or more stages of intake air channels. Each stage performs cyclic work, and the energy is fully utilized to maximize the use efficiency to meet the requirements of output torque and rotational speed.

[0062] As Figure 6 is a schematic diagram of a 4-stage flow channel. After the compressed gas enters from the first-stage flow channel 311, it passes through the second, third, and fourth-stage flow channels 312, 313, and 314, and is ejected to act on the corresponding driving recess 11, and finally the gas is output through the exhaust flow channel 310; Figure 5 is a schematic diagram of a 5-stage intake air channel. The working process is the same as Figure 7 and the schematic is similar. As Figure 7 , the secondary impulse flow channel 300 includes a return channel and a communicating stroke channel. As Figure 6 the return channel 3131 and the communicating stroke channel 3132 in the third-stage flow channel in

[0063] Please refer to Figure 2 , the gas power device further includes a shaft 2. The outer ring 1 and the core 3 are coaxially arranged on the shaft 2. The shaft 2 is provided with intake and exhaust shaft channels 21 and 210 respectively communicating with the intake channel 31 and the exhaust channel 310 of the core 3. The intake and exhaust shaft channels in the shaft form an inlet and an outlet, and the intake and exhaust shaft channels are of a non-communicating structure. The outer ring 1 is cooperated with the shaft 2 through side plates 41 and 42 to form a closed space. The core 3 is arranged in the closed space and is fixedly connected to the shaft 2. In the present invention, the core 3 is provided with at least 2 stages of flow channels, and each stage of flow channel is communicated with the corresponding driving recess of the outer ring, and finally the gas is discharged through the exhaust flow channel.

[0064] Please refer to Figure 2 , in the present invention, the core 3 can be formed by the cooperation of a left core and a right core. The mating surface of the left and right cores is provided with an intake channel 31 and an exhaust channel 310. The core 3 can also be integrally cast.

[0065] Please refer to Figure 2 , Figure 5 , this embodiment is a first-stage driving structure. One air channel is circumferentially arranged on the core 3 to form a first-stage driving structure. The air channel is also called an independent work unit. One intake channel 31, one nozzle 301, at least two driving recesses 11, at least one secondary impulse flow channel 300, one discharge port 302, and one exhaust channel 310 on the core 3 and the outer ring 1 form an independent work unit. The gas power device includes at least one independent work unit. The intake channel 31, the nozzle 301, the driving recess 11, the secondary impulse flow channel 300, the discharge port 302, and the exhaust channel 310 in the independent work unit constitute a gas flow path.

[0066] Please refer toFigure 2 , Figure 5 or Figure 6 , in the present invention, there are provided more than two driving recesses 11 on the inner annular surface of the outer ring 1. Each driving recess has a contour bottom surface 111 and a driving surface 112. The contour line of the contour bottom surface 111 can be an ordinary arc line or a spiral line. When the contour line of the contour bottom surface is a logarithmic spiral line and its pole is set on the axis, each driving recess 11 communicates with the adjacent stage flow channels simultaneously so that the gas entering from the previous stage flow channel is output from the next stage flow channel.

[0067] In the present invention, the flow direction of the intake channel of the core body 3, i.e., the first stage flow channel, can be an ordinary arc line or a spiral line, and the flow direction of the stroke channels in each secondary flow channel, i.e., the Nth stage flow channel, can also be an ordinary arc line or a spiral line.

[0068] As Figure 5 and Figure 6 , on the core body 3 of the present invention, there is provided an intake channel 31, and its flow direction is a logarithmic spiral line extending from the middle to the outside. The flow direction of the stroke channels of the secondary flow channels 300 is a logarithmic spiral line, and the flow direction of the logarithmic spiral line of the stroke channels of the secondary flow channels is substantially the same as that of the logarithmic spiral line of the intake channel. The flow direction of the intake channel of the core body 3 is a logarithmic spiral line extending from the middle to the outside. The pole of the logarithmic spiral line is set on the central axis of the core body, and the logarithmic spiral line has a running angle of 15° - 45°. The smaller the angle, the longer the flow channel and the more the loss; the larger the angle, the smaller the tangential component force for driving the outer ring.

[0069] Please refer to Figure 2 , Figure 3 and Figure 4 , in the present invention, the inlet and outlet air channels 21, 210 in the shaft 2 form an inlet and an outlet, and the inlet and outlet air channels are of a non-connected structure. The inlet and outlet of the shaft can be provided at one end of the shaft or at both ends of the shaft. The intake air channel 21 communicates with the intake channel 31 of the core body. The outlet of the shaft extends axially to form the outlet air channel 210, and the outlet air channel communicates with the exhaust channel 310 of the core body.

[0070] The gas power device involved in this application refers to a device that can convert gas energy into mechanical rotation. In addition to the necessary outer ring, core body, and their corresponding concave or flow channel structures, the device can also include other components; for example, it can additionally include a housing and a sealing structure for external protection, or it can additionally include a coupling for torque transmission, etc. Among them, the form of the outer ring can vary according to the different ways of mechanical rotation output. For example, an external tooth-shaped structure is formed on the outer side of the outer ring to facilitate the output of kinetic energy through gear transmission; or the outer ring has a pulley groove to output kinetic energy through belt transmission; or the outer ring has a mounting flange to conveniently install a coupling to output kinetic energy; and so on. The materials of the core body and the outer ring are made of hard materials, not limited to metals, metal alloys, plastics, and composite materials. The processing methods of the concave or flow channel structures of the core body and the outer ring can be achieved by all known production means, including but not limited to die casting, forging, extrusion, 3D printing, etc. The air pressure input to the power device can be generated by a compressor (such as a pneumatic pump), a container for compressed fluid (such as a high-pressure gas cylinder), etc.

[0071] Figure 2 and Figure 5 It should be noted that although the intake passage 31, the exhaust passage 310, the intake shaft passage 21, and the exhaust shaft passage 210 of the core body do not correspond according to the drawing rules, for the sake of vivid illustration, Figure 2 the intake and exhaust passages of the core body in [reference] refer to the intake and exhaust passages. In Embodiment 2, Figure 7 and Figure 10 Similar schematic diagrams.

[0072] Embodiment 2: Please refer to Figures 7 to 10 , in the gas power device, there are 2 independent working units forming a two-stage drive structure, that is, 2 air channels are arranged circumferentially on the core body 3. Each air channel includes an intake passage 31 with more than 1 stage and a secondary impulse flow channel 300 and is arranged circumferentially along the core body 3 and an exhaust flow channel. The gas power device includes an outer ring 1, on the inner circumferential surface of which there are a plurality of driving concave portions 11; a core body 3, which is coaxially arranged inside the outer ring 1 and can rotate relative to the outer ring. There are 2 groups of nozzles, discharge ports, and at least one secondary impulse flow channel is arranged between each group of nozzles and discharge ports on the outer circumferential surface of the core body; there are 2 intake passages 31, 32 on the core body, which correspondingly communicate with the nozzles; and 2 exhaust passages 310, 320, which correspondingly communicate with the discharge ports; two gases enter from the 2 intake passages of the core body respectively, and are ejected step by step through the nozzles and the secondary impulse flow channels 300 of the core body 3, acting on the corresponding driving concave portions 11 on the circumference of the outer ring, generating a thrust on these driving concave portions to push the outer ring 1 to rotate and do work to achieve power output. Finally, the gas is discharged through the discharge port of the core body through the exhaust passage. The above-mentioned one intake passage, one nozzle, the corresponding number of driving concave portions, the corresponding secondary impulse flow channel, discharge port, and one exhaust passage form an independent working unit.

[0073] The gas power device further includes a shaft 2. The outer ring 1 and the core body 3 are coaxially arranged on the shaft. The shaft 2 is provided with intake shaft channels 21, 22 and exhaust shaft channels 210, 220 which are respectively communicated with the intake channels 31, 32 and the exhaust channels 310, 320 of the core body. The shaft 2 is provided with two intake ports and two exhaust ports corresponding to the air channels; Compressed gas enters from the two intake ports of the shaft 2, is ejected through the intake channels of the core body 3 and acts on the driving recess 11 of the outer ring 1 to generate a thrust to drive the outer ring 1 to rotate and do work. Finally, the compressed gas returns to the corresponding exhaust ports through the exhaust channels of the core body 3, realizing continuous output of power. The other structures are the same as those in Embodiment 1 and will not be described in detail.

[0074] Embodiment 3: The gas power device of the present invention includes 4 or more independent working units to form a multi-stage driving structure. Along the circumferential direction of the core body, 3 or more air channels are arranged. Each air channel includes an intake channel with more than 1 stage and a secondary flow channel and is arranged along the circumferential direction of the core body and an exhaust flow channel. The intake channel and the exhaust channel are arranged on the mating surfaces of the left and right core bodies. The shaft is provided with intake shaft channels and exhaust shaft channels corresponding to the number of air channels. Compressed gas enters from the intake shaft channels of the shaft, is ejected through the intake flow channels of the core body and acts on the driving recesses of the outer ring to drive the outer ring to rotate and do work, realizing continuous output of power. Finally, the compressed gas returns to the corresponding exhaust shaft channels through the respective exhaust flow channels of the core body. The other structures are the same as those in Embodiment 1.

[0075] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all are within the protection scope of the present invention.

Claims

1. A pneumatic assisted vehicle, comprising a vehicle body and wheels. The wheels are provided at the bottom of the vehicle body and the vehicle body moves through the wheels. A storage container and a gas power device are provided on the vehicle body. The storage container supplies gas to the gas power device, and the gas power device drives the wheels to rotate. Characterized in that: The gas power device includes: An outer ring, on the inner circumferential surface of which a plurality of driving recesses are provided in the circumferential direction; A core body, which is coaxially arranged inside the outer ring and can rotate relative to the outer ring. At least one nozzle, at least one exhaust port, and at least one secondary flow channel located between the nozzle and the exhaust port are provided on the outer circumferential surface of the core body; At least one intake channel, which communicates with at least one nozzle; And at least one exhaust channel, which communicates with at least one exhaust port; At least one intake channel, at least one nozzle, at least two driving recesses, at least one secondary flow channel, at least one exhaust port and at least one exhaust channel form an independent working unit, and the gas power device includes at least one independent working unit; The intake channel and the exhaust channel are formed in the core body. The nozzle and the secondary flow channel on the core body communicate with the corresponding driving recesses on the outer ring, and the secondary flow channel is arranged along the circumferential direction of the core body or the outer ring; The core body includes: An intake channel, which forms a nozzle on the circumferential surface of the core body. Its trend is an arc line extending from the middle to the outside. The nozzle communicates with the corresponding driving recess on the outer ring to form a first-stage flow channel; A secondary flow channel, whose trend is an arc line that bends from the edge of the core body inward and then to the edge. Each secondary flow channel communicates with the two adjacent driving recesses on the outer ring corresponding to it, and forms an N-stage flow channel along the circumferential direction of the core body, where N is a natural number greater than or equal to 2; Each stage of the flow channel cooperates with the corresponding driving recess on the outer ring to form a multi-stage stroke structure with decreasing gas energy; The trend of the intake channel of the core body is a logarithmic spiral line extending from the middle to the outside. The pole of the logarithmic spiral line is set on the central axis of the core body, and the trend angle of the logarithmic spiral line is 15°-45°; Gas enters through the intake channel, is ejected through the nozzle and the secondary flow channels of the core body step by step, acts on at least two driving recesses on the circumferential direction of the outer ring, generates a thrust on these driving recesses to push the outer ring to rotate and do work, realizes power output. Finally, the gas is discharged through the exhaust port of the core body and through the exhaust channel.

2. The pneumatic assisted vehicle according to claim 1, Characterized in that: The gas power device further includes a shaft. The outer ring and the core body are coaxially arranged on the shaft, and air inlet and outlet shaft channels are provided on the shaft and communicate with the intake channel and the exhaust channel of the core body respectively.

3. The pneumatic assisted vehicle according to claim 1, Characterized in that: Two or more independent working units are included in the gas power device to form a multi-stage driving structure, and are arranged along the circumferential direction of the core body or the outer ring.

4. The pneumatic assisted vehicle according to any one of claims 1 to 3, Characterized in that: More than 2 driving recesses are provided on the inner circumferential surface of the outer ring. Each driving recess has a contour bottom surface and a driving surface. The contour line of the contour bottom surface is a logarithmic spiral line, and its pole is set at the center of the core body.

5. The pneumatic assisted vehicle according to claim 1, Characterized in that: The gas power device drives the wheels to rotate through a transmission mechanism, and a continuously variable transmission is provided on the transmission mechanism.

6. The pneumatic assisted vehicle according to claim 5, Characterized in that: The transmission mechanism is a belt transmission mechanism or a chain transmission mechanism.

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