Pneumatic power device

Abstract

The pneumatic power device includes an annular gas storage vessel (1), a starting system, and an output system. A plurality of cylinders (2) are uniformly arranged around the inner wall of the annular gas storage vessel, and the cylinder body cavities of the cylinders are connected to the cavity of the annular gas storage vessel. The piston rods (3) of the cylinders are provided with racks (4). The starting system includes a power source, a drive unit (15), a speed reducer / torque increaser mechanism, and a cam (5). The power source is electrically connected to the drive unit, and the drive unit is power-transmittingly connected to the cam by the speed reducer / torque increaser mechanism. The piston rod ends of each cylinder abut against the cam. The output system includes a one-way transmission mechanism and an output shaft (10). The one-way gear (7) at the input end of the one-way transmission mechanism is meshed with the rack, and each rack is power-transmittingly connected to the output shaft by a one-way transmission mechanism. Only when the piston rods of the cylinders are extended does the rack and the output shaft rotate. The pneumatic power plant has little dependence on traditional fuels and effectively avoids dependence on thermal energy resources, reducing emissions, saving energy and being environmentally friendly, while at the same time solving the problems of energy crisis and air pollution.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application filed with the China National Intellectual Property Administration on September 28, 2022, with the application number 202211191091.2 and the invention title "Pneumatic Power Device", and all of its contents are incorporated herein by reference.

[0002] The present invention relates to the technical field of power equipment, and particularly to a pneumatic power device.

Background Art

[0003] Due to the development of thermal energy resources, a large number of internal combustion engines, boilers, etc. discharge a large amount of smoke and waste gas into the atmosphere every day. As time goes by, the ecological environment has suffered serious damage, bringing immeasurable losses to humans, and this energy is becoming increasingly depleted. Without a new alternative energy, in a few decades, human production and life will be paralyzed. Therefore, in order to reduce the dependence on thermal energy resources, it is necessary to develop a new energy power device.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of this, the purpose of the present invention is to provide a pneumatic power device for reducing the dependence on thermal energy resources and reducing environmental pollution.

Means for Solving the Problems

[0005] To achieve the above object, the present invention provides the following technical solutions: A pneumatic power device, An annular gas storage container in which a plurality of cylinders are uniformly arranged along the circumferential direction on the inner peripheral wall. The cylinder body cavity of the cylinder communicates with the cavity of the annular gas storage container, and a rack is provided on the piston rod of the cylinder. The length direction of the rack is parallel to the axial direction of the piston rod of the cylinder, and an annular gas storage container; A starting system comprising a power supply, a drive unit, a reduction / torque increasing mechanism, and a cam, wherein the power supply is electrically connected to the drive unit, the drive unit is transmitted to the cam by the reduction / torque increasing mechanism, the cam is coaxially arranged in the annular gas storage container, and one end of the piston rod of each cylinder, away from the cylinder body of the cylinder, abuts against the cam. An output system including a one-way transmission mechanism and an output shaft, wherein a one-way gear is provided at the input end of the one-way transmission mechanism, the one-way gear is meshed with the rack, each of the racks is transmitted to the output shaft by a single one-way transmission mechanism, and only when the piston rod of the cylinder is extended, the racks drive the one-way gear by the one-way transmission mechanism to rotate the output shaft.

[0006] Preferably, the reduction / torque increase mechanism is A first gear set comprising a meshed first drive gear and a first driven gear, wherein the first drive gear is provided at the output terminal of the drive device, and the number of teeth of the first drive gear is less than the number of teeth of the first driven gear, A second gear set comprising a meshed second drive gear and a second driven gear, wherein the second drive gear is coaxially connected to the first driven gear, the second driven gear is coaxially connected to the cam, and the number of teeth of the second drive gear is less than the number of teeth of the second driven gear.

[0007] Preferably, the one-way transmission mechanism is A one-way gear set comprising a one-way gear and a third driven gear connected coaxially, wherein the one-way gear set is provided so as to correspond to each of the racks, The system includes a driven gear plate that is coaxially connected to the output shaft and meshes with the third driven gear of each of the one-way gear sets.

[0008] Preferably, the number of teeth on the driven gear plate is greater than the number of teeth on the third driven gear.

[0009] Preferably, a rotatable top wheel is provided at one end of the piston rod of the cylinder, away from the cylinder body of the cylinder, and the end of the piston rod of the cylinder, away from the cylinder body of the cylinder, is in contact with the cam by the top wheel.

[0010] Preferably, the annular gas storage container is provided with a safety valve for releasing pressure when the atmospheric pressure inside the annular gas storage container exceeds a rated value.

[0011] Preferably, A pressure detection device for detecting the pressure inside the annular gas storage container, A pressure replenishment device connected to the aforementioned power supply, with its output terminal connected to the aforementioned annular gas storage container, A controller having a signal input terminal connected to the pressure detection device and a signal output terminal connected to the pressure replenishment device, the controller further includes a controller that controls the pressure replenishment device to replenish the pressure in the annular gas storage container based on the value detected by the pressure detection device.

[0012] Preferably, the power source is a storage battery, the pneumatic power unit further includes a generator and an energy detection device, the generator is connected to the storage battery, the energy detection device detects the energy of the storage battery, the generator is connected to the output shaft by a clutch, the signal input terminal of the controller is connected to the energy detection device, the signal output terminal of the controller is connected to the clutch, and the controller controls the clutch so that when the energy detection device detects that the energy of the storage battery is lower than a predetermined value, the generator and the output shaft are connected by a power transmission so that the generator generates power to the storage battery.

[0013] Preferably, the drive device is an electric motor, the electric motor is connected to the power supply by a start switch, and the electric motor is provided with a speed governor.

[0014] Preferably, the controller is communicated via remote control to the start switch, the pressure replenishment device, and the clutch, respectively. [Effects of the Invention]

[0015] As can be seen from the above technical proposal, an embodiment of the present invention provides a pneumatic power device, which includes an annular gas storage container, a starting system and an output system, wherein a plurality of cylinders are uniformly arranged along the circumferential direction on the inner circumferential wall of the annular gas storage container, the cylinder body cavities of the cylinders communicate with the cavities of the annular gas storage container, a rack is provided on the piston rod of the cylinder, the longitudinal direction of the rack is parallel to the axial direction of the piston rod of the cylinder, the starting system includes a power supply, a drive unit, a reduction / torque increasing mechanism and a cam, the power supply is electrically connected to the drive unit, and the drive unit is a reduction A speed and torque increasing mechanism drives the cam, which is coaxially positioned in an annular gas storage container. The piston rod of each cylinder, one end away from the cylinder body, abuts against the cam. The output system includes a one-way transmission mechanism and an output shaft. A one-way gear is provided at the input end of the one-way transmission mechanism, and the one-way gear meshes with a rack. Each rack is transmitted to the output shaft by a single one-way transmission mechanism. When the piston rod of the cylinder is extended, the rack drives the one-way gear via the one-way transmission mechanism to rotate the output shaft. First, the annular gas storage container is filled with gas so that the air pressure inside the annular gas storage container reaches a predetermined value. Then, the starting system is driven to rotate the cam, and as the cam rotates, the piston rods of each cylinder move back and forth in sequence. When the protrusion of the cam contacts the piston rod, the cam applies pressure to the cylinder, causing the cylinder rod to retract. At this time, the rack meshes with the one-way gear of the one-way transmission mechanism, but the rack does not transmit power by allowing the one-way gear to spin freely. The cam rotates continuously until the recess of the cam contacts and engages with the cylinder rod, and the annular gas storage The cylinder rod is extended by the pressure inside the storage container, the rack rotates a unidirectional gear to transmit power, and as the cam rotates, the piston rods and racks of the multiple cylinders are extended and reset in sequence, and as the cam rotates continuously, each cylinder repeats, constantly converting the pressure energy stored in the annular gas storage container into mechanical energy and outputting it to the outside, the speed of the output depending on the torque output from the drive unit, and as the piston rods of the multiple cylinders reciprocate, the multiple racks are cyclically driven to rotate the corresponding unidirectional gears in sequence.Output power. Thus, in this application, the driving device of the starting system drives the cam to rotate by means of a speed reduction and torque increase mechanism, increases the torque output from the driving device of the starting system, and the driving device drives the cam to rotate with a small torque. Also, the output power of the pneumatic power device can be infinitely increased. For example, increase the pressure per unit area of the annular gas storage container, increase the area of the piston of the cylinder, increase the number of cylinders, and also, due to the structural design of the pneumatic power device, until the sealing member is damaged, the compressed air is used infinitely repeatedly within a closed-loop system. The pneumatic power device has less dependence on conventional fuels, mainly works using a pressure difference, effectively avoids dependence on thermal energy resources, reduces emissions, saves energy, is environmentally friendly, and at the same time solves the problems of energy crisis and air pollution.

Brief Description of the Drawings

[0016] To more clearly explain the embodiments of the present invention or the technical solutions of the prior art, the necessary drawings for describing the embodiments or the prior art are briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, on the premise of not performing labor worthy of inventive step, other drawings can be obtained based on these drawings.

[0017] [Figure 1] It is a structural schematic diagram of the annular gas storage container of the pneumatic power device disclosed in the embodiment of the present invention. [Figure 2] It is a structural schematic diagram of the output system of the pneumatic power device disclosed in the embodiment of the present invention. [Figure 3] It is a structural schematic diagram of the starting system of the pneumatic power device disclosed in the embodiment of the present invention.

Modes for Carrying Out the Invention

[0018] The present invention discloses a pneumatic power device, which reduces dependence on thermal energy resources and reduces environmental pollution.

[0019] The drawings of the embodiments of the present invention will be combined below to clearly and completely describe the technical solutions of the embodiments of the present invention. The described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained on the premise that those skilled in the art do not perform labor worthy of inventive step belong to the protection scope of the present invention.

[0020] As shown in FIGS. 1 to 3, FIG. 1 is a schematic structural diagram of an annular gas storage container of a pneumatic power device disclosed in an embodiment of the present invention, FIG. 2 is a schematic structural diagram of an output system of a pneumatic power device disclosed in an embodiment of the present invention, and FIG. 3 is a schematic structural diagram of a starting system of a pneumatic power device disclosed in an embodiment of the present invention.

[0021] According to the pneumatic power device disclosed in the embodiment of the present invention, the pneumatic power device includes an annular gas storage container 1, a starting system, and an output system.

[0022] On the inner peripheral wall of the annular gas storage container 1, a plurality of cylinders 2 are uniformly arranged along the circumferential direction. The cylinder cavities of the cylinders 2 communicate with the cavity of the annular gas storage container 1. The axes of the cylinder bodies of the cylinders 2 are arranged along the radial direction of the annular gas storage container 1. A rack 4 is provided on the piston rod 3 of the cylinder 2. The rack 4 is connected to the piston rod 3 by a connecting component. The length direction of the rack 4 is parallel to the axial direction of the piston rod 3 of the cylinder 2.

[0023] The starting system includes a power source, a driving device 15, a speed reduction and torque increase mechanism, and a cam 5. The power source may be a commercial power source or a battery. The power source is electrically connected to the driving device 15. The driving device 15 is transmission-connected to the cam 5 by a speed reduction and torque increase mechanism. The cam 5 is coaxially arranged with the annular gas storage container 1. One end of the piston rod 3 of each cylinder 2, which is away from the cylinder body of the cylinder 2, abuts against the cam 5.

[0024] The output system includes a one-way transmission mechanism and an output shaft 10. A one-way gear 7 is provided at the input end of the one-way transmission mechanism, and the one-way gear 7 meshes with a rack 4. Each rack 4 is transmitted to the output shaft 10 by a single one-way transmission mechanism. Only when the piston rod 3 of the cylinder 2 is extended, the rack 4 drives the one-way gear 7 via the one-way transmission mechanism to rotate the output shaft 10.

[0025] When in use, first, the annular gas storage container 1 is filled with gas so that the air pressure inside the annular gas storage container 1 reaches a predetermined value. Then, the starting system is driven to rotate the cam 5. As the cam 5 rotates, the piston rods 3 of each cylinder 2 reciprocate in sequence. When the protrusion of the cam 5 contacts the piston rod 3, the cam 5 applies pressure to the cylinder 2, causing the rod of the cylinder 2 to be retracted. At this time, the rack 4 meshes with the one-way gear 7 of the one-way transmission mechanism, but the rack 4 does not transmit power by allowing the one-way gear 7 to rotate freely. The cam 5 continues to rotate until the recess of the cam 5 contacts and engages with the rod of the cylinder 2, and the annular gas The pressure inside the storage container 1 causes the rods of the cylinders 2 to extend, and the racks 4 rotate the unidirectional gears 7 to transmit power. When the cams 5 rotate, the piston rods 3 and racks 4 of the multiple cylinders 2 are extended and reset in sequence. As the cams 5 continue to rotate, each cylinder 2 repeatedly converts the pressure energy stored in the annular gas storage container 1 into mechanical energy and outputs it to the outside. The speed of the output depends on the torque output from the drive unit 15. As the piston rods 3 of the multiple cylinders 2 reciprocate, the multiple racks 4 are driven cyclically to rotate the corresponding unidirectional gears 7 in sequence, thereby outputting power.

[0026] Compared to the prior art, the drive unit 15 of the starting system of the pneumatic power device provided in the embodiment of the present invention drives the cam 5 to rotate by a reduction / torque increase mechanism, increasing the torque output from the drive unit 15 of the starting system, and enabling the drive unit 15 to rotate the cam 5 with a small torque. Furthermore, the output power of the pneumatic power device can be increased indefinitely. For example, by increasing the pressure per unit area of ​​the annular gas storage container 1, increasing the piston area of ​​the cylinder 2, and increasing the number of cylinders 2, the structural design of the pneumatic power device allows compressed air to be used indefinitely and repeatedly within a closed-loop system until the seal member fails. This pneumatic power device has less reliance on conventional fuels, mainly works using pressure differences, and air is an abundant renewable resource that can be repeatedly used as a medium for energy storage. It effectively avoids reliance on thermal energy resources, reduces emissions, saves energy, is environmentally friendly, and simultaneously solves the problems of energy crisis and air pollution.

[0027] Preferably, in an embodiment of the present invention, as shown in Figure 3, the reduction / torque increase mechanism includes a first gear set and a second gear set, the first gear set comprises a meshed first drive gear 14 and a first driven gear 13, the first drive gear 14 is provided at the output terminal of the drive unit 15, the number of teeth of the first drive gear 14 is less than the number of teeth of the first driven gear 13, the second gear set comprises a meshed second drive gear 12 and a second driven gear 11, the second drive The drive gear 12 is coaxially connected to the first driven gear 13, and the second driven gear 11 is coaxially connected to the cam 5. The cam shaft and the output shaft 10 are concentrically positioned, and both the cam shaft and the output shaft 10 are driven by different power sources. The cam 5 is connected to the second driven gear 11 by the cam shaft, and its power comes from the power supply and drive device 15. The power of the output shaft 10 comes from each of the cylinders 2. The number of teeth on the second drive gear 12 is less than the number of teeth on the second driven gear 11.

[0028] Of course, the reduction and torque-increasing mechanism composed of gears described above is merely a preferred implementation solution provided in the embodiments of the present invention, and a belt drive mechanism or a sprocket drive mechanism may also be used as the reduction and torque-increasing mechanism, and is not limited thereto.

[0029] Specifically, in an embodiment of the present invention, the one-way transmission mechanism includes a one-way gear set and a driven gear plate 9, the one-way gear set comprises a one-way gear 7 and a third driven gear 8 that are coaxially connected, the one-way gear set is provided to correspond to each rack 4, the driven gear plate 9 is coaxially connected to the output shaft 10 and meshes with the third driven gear 8 of each one-way gear set.

[0030] To optimize the above technical proposal, the number of teeth on the driven gear plate 9 is increased to be greater than the number of teeth on the third driven gear 8, thereby creating a reduction in speed and an increase in torque between the driven gear plate 9 and the third driven gear 8.

[0031] Preferably, as shown in Figures 1 and 3, a rotatable top wheel 6 is provided at one end of the piston rod 3 of the cylinder 2 that is away from the cylinder body of the cylinder 2, and the end of the piston rod 3 that is away from the cylinder body of the cylinder 2 is in contact with the cam 5 by the top wheel 6. As a result, the relative motion between the piston rod 3 and the cam 6 changes from sliding to rolling, reducing the frictional force between the piston rod 3 and the cam 5, thereby reducing resistance and decreasing frictional heat loss.

[0032] In an embodiment of the present invention, the annular gas storage container 1 is further provided with a safety valve, which releases pressure when the atmospheric pressure inside the annular gas storage container 1 exceeds a rated value, thereby ensuring the safety of the equipment.

[0033] Preferably, the pneumatic power unit further includes a pressure detection device, a pressure replenishment device, and a controller, wherein the pressure detection device detects the pressure in the annular gas storage container 1, the pressure replenishment device is connected to a power source, the output terminal of the pressure replenishment device is connected to the annular gas storage container 1, the signal input terminal of the controller is connected to the pressure detection device, the signal output terminal of the controller is connected to the pressure replenishment device, and the controller controls the pressure replenishment device to replenish the pressure in the annular gas storage container 1 based on the value detected by the pressure detection device.

[0034] Furthermore, the power source is a battery 18, and the pneumatic power unit further includes a generator and an energy detection device. The generator is connected to the battery 18, the energy detection device detects the energy of the battery 18, the generator is connected to the output shaft 10 by a clutch, the signal input terminal of the controller is connected to the energy detection device, and the signal output terminal of the controller is connected to the clutch. When the energy detection device detects that the energy of the battery 18 is lower than a predetermined value, the controller controls the clutch to transmit power to the battery 18 by connecting the generator to the output shaft 10, that is, the electrical energy of the battery 18 originates from the pneumatic power unit itself.

[0035] Preferably, the drive unit 15 is an electric motor, which is connected to a power source by a start switch 17. When the start switch 17 is turned on, the electric motor starts to rotate and outputs torque. When the start switch 17 is turned off, the rotation of the electric motor stops. The electric motor is equipped with a speed governor 16, and the user or controller adjusts the rotational speed of the electric motor using the speed governor 16 to adjust the output power according to the needs.

[0036] In an embodiment of the present invention, the controller is communicated via remote control to the start switch 17, the pressure replenishment device, and the clutch, respectively, and the user or controller remotely controls the start switch 17, the pressure replenishment device, and the clutch using the remote control.

[0037] As described above, the output power P of the pneumatic power unit satisfies the following formula: P(w) = kilogram-force (kgf) output from the working piston cylinder * rotational speed when the output shaft is loaded ÷ 60s ÷ 75 kg·m.

[0038] The above formula is a conclusion obtained through practical verification using torque coefficient detection devices and equipment. The construction of this formula has significant implications for the future manufacture and research and development of pneumatic power equipment. As can be seen through many years of experimentation, pneumatic power is elastic, and the optimal peak of pneumatic expansion energy occurs only when the kilogram force output from the piston cylinder is a multiple of the kilogram force when the output shaft is loaded. Therefore, the above formula is obtained.

[0039] The following describes specific examples of the present invention.

[0040] Cylinder 2 has a diameter of 180 mm, and the piston area is 254 cm². 2 The pressure used per unit area is 0.6 MPa, and eight cylinders 2 are concentrically and uniformly arranged around the circumference of each annular gas storage container 1. Each cylinder 2 has a piston rod 3 equipped with both a top wheel 6 and a rack 4, and the top wheels 6 of the piston rods 3 of three of these cylinders 2 are always in rotatable contact with the cam 5, and the pressure exerted by each top wheel 6 on the cam 5 is 254 cm². 2 *0.6 MPa = 1524 kgf, and the pressure applied by the three top wheels 6 to the cam 5 simultaneously is 1524 kgf * 3 = 4572 kgf. Due to the action of the drive unit 15 and the reduction / torque increase mechanism, the frictional resistance of the rotation of the cam 5 is reduced by 85%, and the starting system can achieve the power output of the equipment by consuming 15% of the force generated from the output system. In other words, by using only 15 kgf, the piston of cylinder 2 with a pressure of 100 kg is reset, and 85% of the equipment's power is output externally.

[0041] Herein, each example in this specification is described in a progressive manner, with each example primarily describing the differences from other examples, and similar or identical parts between examples being referenced to one another.

[0042] In this application, the use of “system,” “apparatus,” “unit,” and / or “module” is merely a way of distinguishing different levels of assemblies, elements, components, parts, or arrangements. However, if there are other terms that can achieve the same purpose, those other expressions may be used instead of those terms.

[0043] As shown in this application and claims, unless the specification explicitly states otherwise, terms such as “one,” “a type,” and / or “the said” do not refer only to a singular number but may include multiple numbers. Generally, terms such as “includes” and “incorporates” simply indicate the inclusion of explicitly stated steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may further include other steps or elements. An element limited by the phrase “includes XX” does not preclude the presence of other identical elements in a process, method, product or apparatus that includes the element.

[0044] In the descriptions of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B means A or B, and "and / or" in this specification is merely a relational relationship to describe the related subjects, indicating that three relationships exist, for example, A and / or B means that A exists individually, A and B exist simultaneously, and B exists individually. Also in the descriptions of the embodiments of this application, "multiple" means two or more.

[0045] Where flowcharts are used in this application, they are used to illustrate the operations performed by the system according to the embodiments of this application. Here, the preceding or succeeding operations are not necessarily performed in exact order. Conversely, they may be performed in reverse order, or each step may be performed simultaneously. Other operations may be added to these processes, or one or more operations may be removed from these processes.

[0046] Furthermore, in this specification, the terms “includes,” “incorporates,” or any other variation thereof are intended to include non-exclusive inclusion, thereby including not only those elements but also other elements not explicitly listed, or even elements inherent to such article or equipment. Unless otherwise specified, the elements limited by the phrase “includes XX” do not preclude other identical elements from being included in the article or equipment containing those elements.

[0047] This specification uses specific examples to describe the principles and embodiments of the present invention, and the above description of the embodiments is used solely to understand the spirit of the invention. Hereinafter, those skilled in the art will know that several improvements and modifications to the present invention will not depart from the principles of the invention, and these improvements and modifications will also fall within the scope of protection of the claims of the present invention. [Explanation of Symbols]

[0048] 1. Ring-shaped gas storage container; 2... cylinders; 3. Piston rod; 4 racks; 5 ···cam; 6 ···Top wheel; 7 ···One-way gear; 8. Third driven gear; 9 ···Driven gear plate; 10 ···Output shaft; 11 ···Second driven gear; 12 ···Second drive gear; 13 ···First driven gear; 14 ···First drive gear; 15. Drive system; 16...Governor; 17 ···Activation switch; 18. Storage batteries.

Claims

1. A pneumatic power device, An annular gas storage container having a plurality of cylinders uniformly arranged along the circumferential direction on its inner circumferential wall, wherein the cylinder body cavities of the cylinders communicate with the cavities of the annular gas storage container, and the piston rods of the cylinders are provided with racks, the longitudinal direction of the racks being parallel to the axial direction of the piston rods of the cylinders, A starting system comprising a power supply, a drive unit, a reduction / torque increasing mechanism, and a cam, wherein the power supply is electrically connected to the drive unit, the drive unit is transmitted to the cam by the reduction / torque increasing mechanism, the cam is coaxially arranged in the annular gas storage container, and one end of the piston rod of each cylinder, away from the cylinder body of the cylinder, abuts against the cam. A pneumatic power device comprising an output system including a one-way transmission mechanism and an output shaft, wherein a one-way gear is provided at the input end of the one-way transmission mechanism, the one-way gear is meshed with the rack, each of the racks is transmitted to the output shaft by a single one-way transmission mechanism, and only when the piston rod of the cylinder is extended, the racks drive the one-way gear by the one-way transmission mechanism to rotate the output shaft.

2. The aforementioned reduction and torque increase mechanism is A first gear set comprising a meshed first drive gear and a first driven gear, wherein the first drive gear is provided at the output terminal of the drive device, and the number of teeth of the first drive gear is less than the number of teeth of the first driven gear, The pneumatic power device according to claim 1, further comprising a second gear set having a meshed second drive gear and a second driven gear, wherein the second drive gear is coaxially connected to the first driven gear, the second driven gear is coaxially connected to the cam, and the number of teeth of the second drive gear is less than the number of teeth of the second driven gear.

3. The aforementioned one-way transmission mechanism is, A one-way gear set comprising a one-way gear and a third driven gear connected coaxially, wherein the one-way gear set is provided so as to correspond to each of the racks, The pneumatic power device according to claim 1, further comprising a driven gear plate coaxially connected to the output shaft and meshing with the third driven gear of each of the unidirectional gear sets.

4. The pneumatic power device according to claim 3, characterized in that the number of teeth of the driven gear plate is greater than the number of teeth of the third driven gear.

5. A pneumatic power device according to any one of claims 1 to 4, characterized in that a rotatable top wheel is provided at one end of the piston rod of the cylinder that is away from the cylinder body of the cylinder, and the end of the piston rod of the cylinder that is away from the cylinder body of the cylinder is in contact with the cam by the top wheel.

6. The pneumatic power device according to any one of claims 1 to 4, characterized in that the annular gas storage container is provided with a safety valve for releasing pressure when the atmospheric pressure inside the annular gas storage container exceeds a rated value.

7. A pressure detection device for detecting the pressure inside the annular gas storage container, A pressure replenishment device connected to the aforementioned power supply, with its output terminal connected to the aforementioned annular gas storage container, A pneumatic power device according to any one of claims 1 to 4, further comprising a controller whose signal input terminal is connected to the pressure detection device and whose signal output terminal is connected to the pressure replenishment device, wherein the controller controls the pressure replenishment device to replenish the pressure in the annular gas storage container based on the value detected by the pressure detection device.

8. The pneumatic power device according to claim 7, wherein the power source is a storage battery, the pneumatic power device further includes a generator and an energy detection device, the generator is connected to the storage battery, the energy detection device detects the energy of the storage battery, the generator is connected to the output shaft by a clutch, the signal input terminal of the controller is connected to the energy detection device, the signal output terminal of the controller is connected to the clutch, and the controller controls the clutch so that when the energy detection device detects that the energy of the storage battery is lower than a predetermined value, the generator and the output shaft are connected by a power transmission so that the generator generates power to the storage battery.

9. The pneumatic power device according to claim 8, characterized in that the drive device is an electric motor, the electric motor is connected to the power supply by a start switch, and the electric motor is provided with a speed governor.

10. The pneumatic power device according to claim 9, characterized in that the controller is communicated via remote control to the start switch, the pressure replenishment device, and the clutch, respectively.

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