A power generation device

Abstract

The application belongs to the technical field of power generation, and particularly relates to a power generation device, which comprises a treading plate and multiple transmission units, the treading plate is spliced by multiple movable plate blocks, and the multiple transmission units are arranged at the bottom of each movable plate block; the transmission unit comprises a gear and rack mechanism and a ratchet mechanism, the gear and rack mechanism comprises a rack, a first gear, a guide assembly, an elastic member and a fixing seat, the rack is vertically arranged at the bottom of the movable plate block through the guide assembly, the upper end of the rack is abutted with the movable plate block, the lower end is connected with the guide assembly through the elastic member, and the elastic member is used for realizing the reset of the rack, the gear is rotationally connected with the fixing seat through a rotating shaft, and the gear is engaged with the rack; the ratchet mechanism comprises a ratchet wheel, a pawl and a connecting seat, the connecting seat is sleeved and fixed on the rotating shaft, the pawl is arranged on the connecting seat, the pawl is engaged with the ratchet wheel, and the ratchet wheel is connected with the input end of a generator. The application significantly improves the capturing efficiency and conversion stability of treading energy, and is suitable for distributed power generation in places with dense human flow.

Description

Technical Field

[0001] This invention belongs to the field of power generation technology, and specifically relates to a power generation device. Background Technology

[0002] With the acceleration of global urbanization, traditional power generation methods relying on fossil fuels are no longer able to meet current strategic requirements due to their limited resources and environmental pollution problems. Renewable and clean energy sources such as solar and wind power are limited by weather and geographical conditions, especially in densely populated urban areas where building density leads to insufficient installation area for photovoltaic panels, and underground spaces (such as subway stations) cannot obtain natural light; wind power also has low utilization rates.

[0003] Therefore, with cities currently accounting for over 75% of global energy consumption, and the demand for basic electricity such as lighting and security in high-traffic areas like subway stations and shopping malls continuously increasing, pedal-powered electricity generation has emerged to address power shortages. These devices convert the dynamic energy of pedestrian traffic in public spaces into distributed electricity, achieving an "on-demand" effect and effectively alleviating pressure on urban power supply. Existing pedal-powered devices primarily utilize piezoelectric materials and simple lever mechanisms; however, due to limitations in their structural design, their energy capture efficiency is low, resulting in low energy conversion efficiency and limited applicability. For example, existing piezoelectric power generation devices rely on material deformation to generate electricity. They need to withstand a certain amount of pressure during use and generally require directional stepping points. When the stepping points deviate, energy capture fails. This structure is not suitable for the random stepping needs of high-traffic areas, reducing environmental adaptability and resulting in low energy capture efficiency. Another example is the common lever-type device that transmits energy through direct linkages. When a pedestrian lifts their foot, the linkage's reset phase, i.e., the reverse movement process, causes energy to recede when the stepping force is released, resulting in mechanical energy loss and low energy capture efficiency. Summary of the Invention

[0004] In order to address the problems existing in the prior art, the purpose of this invention is to provide a power generation device that can continuously and stably convert discrete and random human kinetic energy into electrical energy, thereby improving the energy recovery and utilization rate and providing efficient and reliable support for distributed power generation in public places such as subway stations and shopping malls.

[0005] The technical solution of this invention is: A power generation device, comprising: The pedal is made up of multiple movable sections; Multiple transmission units are respectively disposed at the bottom of each of the movable plates; The transmission unit includes: A rack and pinion mechanism includes a rack, a first gear, a guide assembly, an elastic element, and a fixed base. The rack is vertically mounted at the bottom of the movable plate via the guide assembly, which guides the rack's linear movement in the vertical direction. The upper end of the rack abuts against the movable plate, and the lower end is connected to the upper end of the elastic element. The lower end of the elastic element is connected to the guide assembly to achieve the rack's reset. The gear is rotatably connected to the fixed base via a rotating shaft, and the gear meshes with the rack. The ratchet mechanism includes a ratchet, a pawl, and a connecting seat. The connecting seat is fixedly mounted on the rotating shaft, the pawl is disposed on the connecting seat, the pawl engages with the ratchet, and the ratchet is connected to the input end of the generator.

[0006] Preferably, the movable plate is triangular, rhomboid, or trapezoidal, and the pedal is formed by splicing multiple triangular, rhomboid, or trapezoidal movable plates into a continuous plane. Multiple transmission units are respectively set at the bottom of the apex of each movable plate, and the apex where adjacent movable plates connect shares a transmission unit, so that when the pedal is stepped on at any position, the transmission unit below it can be driven by at least one movable plate.

[0007] Preferably, the guiding component includes: The limiting seat is L-shaped, with a guide groove on its vertical side wall and an installation groove on its bottom wall. The guide groove and the installation groove are connected. The side wall of the guide groove has a side groove in the vertical direction. The rack is slidably connected in the guide groove. The lower end of the elastic element is placed in the installation groove and fixed to the bottom wall of the installation groove. A sliding protrusion is adapted to the side groove and slidably connected within the side groove; the sliding protrusion is fixedly connected to the rack.

[0008] Preferably, there are two pawls, which are symmetrically arranged about the axis of rotation and connected to the connecting seat. The ratchet is an internal ratchet, and the two pawls engage synchronously with the ratchet.

[0009] Preferably, the ratchet and the input end of the generator are further provided with a speed-increasing component, which is used to transmit the rotational speed of the ratchet to the input end of the generator by increasing the speed.

[0010] Preferably, the speed-increasing component includes a two-stage gear pair consisting of a driving gear and a driven gear, wherein the ratio of the tip circle radius of the driven gear to that of the driving gear is 1:(2~4), the driving gear is coaxial with the ratchet and is fitted and fixed to the outside of the ratchet, and the driven gear is connected to the input end of the generator and meshes with the driving gear.

[0011] Preferably, the system further includes an energy processing module and an energy storage module. The output terminal of the generator is electrically connected to the energy processing module, and the energy processing module is electrically connected to the energy storage module, for storing the electrical energy generated by the generator after voltage stabilization.

[0012] Preferably, the elastic element includes a spring or a rubber block, and the spring is pagoda-shaped.

[0013] Preferably, flexible connectors are provided between the movable panels.

[0014] Preferably, the pedal is fixed to the upper surface of each of the movable plates with a transparent material cover, and a solar panel is provided between the cover and the movable plate. The solar panel is electrically connected to the power processing module.

[0015] Compared with the prior art, the power generation device of the present invention has the following beneficial effects: This invention firstly, through an independent gear and rack mechanism at the bottom of each movable plate, efficiently converts the stepping action of a pedestrian at any position into the rotational mechanical energy of the gears, optimizing the energy capture path and significantly improving the initial energy conversion efficiency. Secondly, the modular design of the movable plates allows at least one transmission unit to be driven by force applied to any position of the pedal, completely overcoming the limitation of traditional devices that require directional stepping, and greatly enhancing environmental adaptability and reliability in high-traffic, random stepping scenarios. Finally, the ratchet mechanism integrated into the transmission unit ensures unidirectional transmission of rotational power. During the stage when the pedestrian lifts their foot and the rack is pushed back by the elastic element, it effectively locks the energy and prevents mechanical energy backflow and loss, thereby ensuring the stability and efficiency of the process from stepping kinetic energy to the rotational mechanical energy of the generator. Overall, the device has a compact structure and sensitive response, continuously and stably converting discrete and random human stepping kinetic energy into electrical energy, providing an efficient and reliable solution for distributed power generation in public places such as subway stations and shopping malls. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the distribution of the transmission unit on the pedal in an embodiment of the present invention; Figure 2 This is a schematic diagram of the transmission unit in an embodiment of the present invention; Figure 3 This is a schematic diagram of the gear and rack mechanism in an embodiment of the present invention; Figure 4 This is a schematic diagram of the ratchet mechanism in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Generator; 2. Pedal; 3. Movable plate; 4. Transmission unit; 5. Rack; 6. First gear; 7. Guide assembly; 71. Limit seat; 72. Guide groove; 73. Mounting groove; 74. Sliding convex strip; 8. Elastic element; 9. Fixed seat; 10. Ratchet; 11. Pawl; 12. Connecting seat; 13. Driving gear; 14. Driven gear; 15. Solar panel; 16. Housing; 17. Drive shaft. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0020] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0021] See Figures 1 to 4 As shown, in order to continuously and stably convert discrete and random human kinetic energy into electrical energy and improve energy recovery efficiency, this embodiment provides efficient and reliable technical support for distributed power generation in public places such as subway stations and shopping malls. This embodiment provides a power generation device, including a pedal 2 and multiple transmission units 4. The pedal 2 is composed of multiple movable plates 3 joined together. Preferably, the pedal 2 is constructed by joining multiple triangular, rhomboid, or trapezoidal movable plates 3 into a continuous plane. Multiple transmission units 4 are respectively disposed at the bottom of each movable plate 3.

[0022] The transmission unit 4 includes a gear and rack mechanism and a ratchet mechanism. The gear and rack mechanism includes a rack 5, a first gear 6, a guide assembly 7, an elastic element 8, and a fixed seat 9. The rack 5 is vertically mounted at the bottom of the movable plate 3 via the guide assembly 7, which guides the rack 5's linear movement in the vertical direction. The upper end of the rack 5 abuts against the movable plate 3, and the lower end connects to the upper end of the elastic element 8. The lower end of the elastic element 8 connects to the guide assembly 7 to achieve the rack 5's reset. The gear is rotatably connected to the fixed seat 9 via a rotating shaft, and the gear meshes with the rack 5. The ratchet mechanism includes a ratchet 10, a pawl 11, and a connecting seat 12. The connecting seat 12 is fixedly mounted on the rotating shaft, and the pawl 11 is mounted on the connecting seat 12, meshing with the ratchet 10. The ratchet 10 is connected to the input end of the generator 1.

[0023] Specifically, through the independent gear and rack mechanism at the bottom of each active plate 3, the stepping action of pedestrians at any position is efficiently converted into the rotational mechanical energy of the gears, optimizing the energy capture path and significantly improving the initial energy conversion efficiency. Secondly, the modular design of the active plate 3 allows any force applied to the pedal 2 to drive at least one transmission unit 4, completely overcoming the limitation of traditional devices that require directional stepping, and greatly enhancing environmental adaptability and reliability in high-traffic, random stepping scenarios. Finally, the ratchet mechanism integrated into the transmission unit 4 ensures unidirectional transmission of rotational power. During the stage when the pedestrian lifts their foot and the rack 5 is pushed back by the elastic element 8, the energy is effectively locked to prevent mechanical energy backflow and loss, thus ensuring the stability and efficiency of the process from stepping kinetic energy to the rotational mechanical energy of the generator 1. Overall, the device has a compact structure and sensitive response, continuously and stably converting discrete and random human stepping kinetic energy into electrical energy, providing an efficient and reliable solution for distributed power generation in public places such as subway stations and shopping malls.

[0024] See Figure 1 As shown, in order to improve the energy capture efficiency and increase the energy recovery rate, the active plate 3 adopts a polygonal regular structure such as triangle, rhombus or trapezoid, and then multiple transmission units 4 are respectively set at the bottom of the vertex of each active plate 3, and the vertex of adjacent active plates 3 share a transmission unit 4, so that when the pedal is applied to any position of the pedal 2, the transmission unit 4 below it can be driven by at least one active plate 3.

[0025] Modular polygonal movable plates 3 (such as triangles) can be seamlessly spliced ​​into a continuous plane. Transmission units 4 are precisely positioned below the vertices of each movable plate 3. When a stepping force is applied to any position on any plate (such as the center or side of a triangular plate), the force is transmitted through the plate structure to one or more vertices, thereby driving one or more transmission units 4 below. Adjacent plates share the vertex transmission unit 4, achieving intensive resource utilization. This design completely overcomes the limitations of traditional piezoelectric or simple stepping devices, as mentioned in the background art, which "require directional stepping points, and energy capture fails when the stepping point deviates." It ensures effective power generation regardless of where the stepping occurs on the plane of the pedal 2, greatly enhancing the device's environmental adaptability and reliability in high-traffic, random stepping scenarios, and achieving full-domain capture of discrete, random stepping energy.

[0026] See Figure 3As shown, the guide assembly 7 further includes a limiting seat 71 and a sliding protrusion 74. The limiting seat 71 is L-shaped, with a guide groove 72 on its vertical side wall and an installation groove 73 on its bottom wall. The guide groove 72 and the installation groove 73 are connected. The side wall of the guide groove 72 has a side groove in the vertical direction. The rack 5 is slidably connected in the guide groove 72. The lower end of the elastic member 8 is placed in the installation groove 73 and fixed to the bottom wall of the installation groove 73. The sliding protrusion 74 is adapted to the side groove and is slidably connected in the side groove. The sliding protrusion 74 is fixedly connected to the rack 5.

[0027] The guide groove 72 provides a precise vertical track for the up-and-down movement of the rack 5, ensuring that the rack 5 and the first gear 6 always maintain the correct meshing relationship and avoiding jamming or wear caused by misalignment. This is the foundation for efficient and stable power transmission. The cooperation between the sliding convex strip 74 and the side groove further restricts the circumferential rotation of the rack 5, ensuring its pure linear motion. The elastic element 8 (such as a spring) is placed in the mounting groove 73 and is compressed to store energy when the rack 5 is pressed down; when the stepping force disappears, the elastic element 8 releases the stored potential energy, pushing the rack 5 to accurately and quickly reset, preparing for the next step. This guide assembly 7 not only ensures the precision and low friction of the energy conversion path (rack 5-gear meshing), thereby improving the efficiency of energy capture and transmission; its integrated elastic reset mechanism optimizes the user's rebound feeling when stepping, making the force more uniform and the response more sensitive, improving the durability of the device and the user experience, and structurally supporting the need for long-term and stable operation of the device in public places.

[0028] Preferably, the elastic element 8 includes a spring or a rubber block, and when a spring is used as the elastic element 8, the spring is pagoda-shaped. A pagoda-shaped spring provides a gradual elastic force at different compression stages; it is initially softer to ensure a comfortable pedaling feel, and later becomes firmer to provide sufficient restoring force and avoid a "bottoming out" impact. The rubber block provides non-linear damping characteristics. This not only ensures reliable and smooth return of the rack 5, creating conditions for continuous pedaling, but more importantly, it improves the user's pedaling feel by optimizing the rebound force curve, avoiding harsh impacts, and enhancing the comfort and acceptability of the device in high-traffic areas. This is an important human-centered design that improves the device's environmental adaptability.

[0029] See Figure 4As shown, furthermore, two pawls 11 are provided, symmetrically arranged about the axis of rotation and connected to the connecting seat 12. The ratchet 10 is an inner ratchet 10, and the two pawls 11 mesh synchronously with the ratchet 10. The double pawls 11 are symmetrically arranged with respect to the axis of rotation and work in cooperation with the inner ratchet 10. When the connecting seat 12 drives the pawls 11 to rotate in the forward (driving direction), at least one pawl 11 can reliably mesh with the tooth groove of the inner ratchet 10 to transmit torque. This symmetrical double-pawl design forms redundant drive. It significantly improves the reliability and smoothness of the ratchet 10 mechanism transmission and avoids the risk of stripping or failure of a single pawl 11 due to wear, manufacturing errors, or excessive instantaneous load. This ensures that the unidirectional power transmission from the gear to the ratchet 10 is more stable and continuous under any pedaling conditions, directly solving the energy loss problem caused by unstable power transmission that is of concern in the background art, and further consolidating the mechanism to prevent energy backflow.

[0030] See Figure 1 and Figure 4 As shown, furthermore, to improve power generation efficiency, a speed-increasing component is also provided at the input end of the ratchet 10 and the generator 1. This component is used to transmit the rotational speed of the ratchet 10 to the input end of the generator 1 via a speed-increasing mechanism. The speed-increasing component includes a two-stage gear pair consisting of a driving gear 13 and a driven gear 14. The ratio of the addendum circle radius of the driven gear 14 to that of the driving gear 13 is 1:(2~4). The driving gear 13 is coaxial with the ratchet 10 and is integrally formed and fixed to the outside of the ratchet 10 (e.g., ...). Figure 4 As shown in the figure, the driven gear 14 is connected to the input end of the generator 1 and meshes with the driving gear 13.

[0031] The speed-increasing component, through a gear pair with a gear ratio (or radius ratio) of N:1 (N=2~4), increases the rotational speed of ratchet 10 by N times before transmitting it to the input shaft of the generator. According to the lever principle, neglecting losses, the output torque will decrease accordingly, but the generator 1 can typically cut magnetic field lines more efficiently to generate electrical energy at higher speeds. This design converts the low-speed, high-torque mechanical energy generated by pedaling into high-speed rotational mechanical energy suitable for the efficient operation of the generator 1, significantly improving the overall system's final conversion efficiency from mechanical energy to electrical energy. This is a key step in solving the "low energy conversion efficiency" problem described in the background technology, enabling the limited kinetic energy of human pedaling to generate more electrical energy.

[0032] Furthermore, this invention also includes an energy processing module and an energy storage module. The output terminal of generator 1 is electrically connected to the energy processing module, and the energy processing module is electrically connected to the energy storage module, used to regulate and store the electrical energy generated by generator 1. Generator 1 generates unstable AC or pulsating DC power. The energy processing module (typically including rectification, filtering, and voltage regulation circuits) processes the unstable raw electrical energy into DC power with stable voltage and current. The processed electrical energy is stored in the energy storage module (such as a supercapacitor or lithium battery pack). The energy storage module acts as an "energy pool," which can smooth out power fluctuations caused by random and intermittent stampedes, achieving energy accumulation. It realizes the "rectification, voltage regulation, and storage" of unstable raw electrical energy, so that the final output is stable DC power that can be directly used for public facilities such as LED lighting and sensors. This solves the problem of stampede power generation being "on-demand" but with large fluctuations, achieving effective energy aggregation and stable supply, and improving the practicality and reliability of the device.

[0033] Furthermore, flexible connectors are provided between the movable plates 3. The movable plates 3 are not rigidly connected, but rather linked by flexible connectors (such as rubber strips or hinges) at their joints. This allows adjacent plates to move independently to a certain extent in the vertical direction, while maintaining a fixed relative position in the horizontal direction. The flexible connection allows each movable plate 3 to respond more independently to the pedaling force directly above it, reducing mechanical interference and internal force loss between plates, ensuring that the pedaling force can act more effectively on the transmission unit 4 under the target plate. Simultaneously, it enhances the deformation resistance and durability of the entire pedal surface 2, further optimizing energy capture efficiency and structural reliability under complex pedaling conditions.

[0034] Furthermore, each movable plate 3 has a transparent cover fixed to the upper surface of the pedal 2, with a solar panel 15 positioned between the cover and the movable plate. The solar panel 15 is electrically connected to the power processing module. A transparent cover (such as tempered glass) is installed on the upper surface of the movable plate 3, with a solar panel integrated underneath. The solar panel 15 is connected to the aforementioned power processing module. In this way, the pedal 2 captures kinetic energy from stepping on the pedal while simultaneously capturing ambient light energy through the solar panel 15. This design achieves dual energy capture of "kinetic energy + light energy." For locations with sunlight, such as subway station entrances and covered pedestrian streets, the solar panel 15 can continuously generate electricity even when no one is stepping on the pedal, greatly improving the overall energy capture efficiency and energy output of the device. This directly expands the application scenarios and energy efficiency of the device, effectively supplementing and optimizing the insufficient photovoltaic installation area in urban spaces, and realizing a more comprehensive utilization of distributed renewable energy.

[0035] Furthermore, each enclosure's upper surface is equipped with anti-slip textures. These textures enhance stability when pedestrians step on the movable plate 3. Specifically, the anti-slip textures improve safety, ensuring continuous stepping and energy capture: In crowded public places like shopping malls and subway stations, the ground may become slippery due to weather (rain or snow), cleaning, or accidental liquid spills. The anti-slip textures on the enclosure surface significantly increase the friction between the shoe sole and the stepping surface, effectively preventing pedestrians from slipping. The anti-slip design ensures that pedestrians can confidently and naturally step on the movable plate 3 under any environmental conditions, thus ensuring that the device's energy capture opportunities are not reduced due to safety concerns, maintaining the expected energy input level in high-traffic scenarios—the foundation for efficient energy recovery. On the other hand, it optimizes the transmission of stepping force, improving energy conversion efficiency and system reliability: Smooth surfaces can cause feet to slip during stepping, posing a safety risk and causing some stepping force to be consumed in horizontal sliding friction rather than being effectively transmitted vertically downwards to the rack 5. The anti-slip texture provides reliable grip, allowing pedestrians' stomping force to act more fully and vertically on the moving plate 3. Optimizing the initial mechanical energy input quality allows the stomping force to be converted more efficiently through the rack and pinion mechanism 5, reducing energy loss due to lateral slippage and thus improving energy capture efficiency on the input side. Simultaneously, the more stable and vertical force distribution also helps protect the underlying transmission mechanism, preventing component wear or failure due to lateral impacts or abnormal loads, thus improving the device's durability and long-term operational stability.

[0036] Furthermore, the present invention also includes a housing 16 for waterproof sealing of the transmission unit 4. The entire transmission unit 4 is placed inside the housing 16. The upper end of the rack 5 passes through a pre-reserved through hole at the top of the housing 16 and abuts against the movable plate through an elastic reset block. The through hole is sealed. A cable hole for electrical connection between the generator 1 and the power processing module is provided on the lower side wall of the housing 16. Specifically, the input end of the generator 1 is coaxially fixed with the driven gear 14 via a transmission shaft 17.

[0037] In summary, the power generation device provided by this invention operates on the following principle: When a pedestrian steps on the movable plate 3 of the foot pedal 2, applying a vertically downward stepping force, the movable plate 3 moves downward under pressure. Under the limiting action of the guide component 7, it drives the rack 5 to move vertically downward in a straight line. Through meshing with the first gear 6, the straight line motion is converted into the rotational motion of the first gear 6. The rotational motion of the first gear 6 is converted into the unidirectional rotational motion of the ratchet 10 through the ratchet 10 mechanism. The unidirectional rotational motion of the ratchet 10 is accelerated by the speed-increasing component, driving the generator 1 to rotate at high speed and generate electrical energy. The electrical energy generated by the generator 1 is processed and stored, and the stored electrical energy is output for the use of the load.

[0038] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A power generation device, comprising a generator, characterized in that, Also includes: The pedal is made up of multiple movable sections; Multiple transmission units are respectively disposed at the bottom of each of the movable plates; The transmission unit includes: A rack and pinion mechanism includes a rack, a first gear, a guide assembly, an elastic element, and a fixed base. The rack is vertically mounted at the bottom of the movable plate via the guide assembly, which guides the rack's linear movement in the vertical direction. The upper end of the rack abuts against the movable plate, and the lower end is connected to the upper end of the elastic element. The lower end of the elastic element is connected to the guide assembly to achieve the rack's reset. The gear is rotatably connected to the fixed base via a rotating shaft, and the gear meshes with the rack. The ratchet mechanism includes a ratchet, a pawl, and a connecting seat. The connecting seat is fixedly mounted on the rotating shaft, the pawl is disposed on the connecting seat, the pawl engages with the ratchet, and the ratchet is connected to the input end of the generator.

2. The power generation device according to claim 1, characterized in that, The movable plate is triangular, rhomboid, or trapezoidal. The pedal is formed by splicing multiple triangular, rhomboid, or trapezoidal movable plates into a continuous plane. Multiple transmission units are respectively set at the bottom of the apex of each movable plate, and the apex where adjacent movable plates connect shares a transmission unit. This is to ensure that when the pedal is stepped on at any position, the transmission unit below it can be driven by at least one movable plate.

3. The power generation device according to claim 1, characterized in that, The guiding component includes: The limiting seat is L-shaped, with a guide groove on its vertical side wall and an installation groove on its bottom wall. The guide groove and the installation groove are connected. The side wall of the guide groove has a side groove in the vertical direction. The rack is slidably connected in the guide groove. The lower end of the elastic element is placed in the installation groove and fixed to the bottom wall of the installation groove. A sliding protrusion is adapted to the side groove and slidably connected within the side groove; the sliding protrusion is fixedly connected to the rack.

4. A power generation device according to claim 1, characterized in that, The ratchet has two pawls, which are symmetrically arranged about the pivot and connected to the connecting seat. The ratchet is an internal ratchet, and the two pawls mesh synchronously with the ratchet.

5. A power generation device according to claim 1, characterized in that, The ratchet and the input end of the generator are also provided with a speed-increasing component, which is used to transmit the rotational speed of the ratchet to the input end of the generator by increasing the speed.

6. A power generation device according to claim 5, characterized in that, The speed-increasing component includes a two-stage gear pair consisting of a driving gear and a driven gear. The ratio of the tip circle radius of the driven gear to that of the driving gear is 1:(2~4). The driving gear is coaxial with the ratchet and is fitted and fixed to the outside of the ratchet. The driven gear is connected to the input end of the generator and meshes with the driving gear.

7. A power generation device according to claim 1, characterized in that, It also includes an energy processing module and an energy storage module. The output terminal of the generator is electrically connected to the energy processing module, and the energy processing module is electrically connected to the energy storage module, for storing the electrical energy generated by the generator after voltage stabilization.

8. A power generation device according to claim 3, characterized in that, The elastic element includes a spring or a rubber block, and the spring is pagoda-shaped.

9. A power generation device according to claim 1, characterized in that, Flexible connectors are provided between the movable panels.

10. A power generation device according to claim 7, characterized in that, Each pedal is fixed to the upper surface of each movable plate with a transparent material cover. A solar panel is provided between the cover and the movable plate, and the solar panel is electrically connected to the power processing module.

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