Foot sole energy collection power generation device

Abstract

The invention belongs to the technical field of energy collection, and particularly relates to a sole energy collection power generation device which comprises a shoe body, a column body, a floating body, a power generator and a gear and rack assembly, a working cavity is formed in a sole of the shoe body, and a flowing liquid medium is contained in the working cavity; the column body is vertically arranged in the working cavity, and the lower end of the column body is fixedly connected with the bottom wall of the working cavity; the floating body is arranged in the working cavity and is in sliding connection with the column body, the floating body floats on the surface of the liquid medium, and the liquid medium is used for providing wave energy for the floating body; the gear and rack assembly comprises a fixed rack and a transmission gear, the fixed rack is fixedly connected to the column body or the side wall of the working cavity, the transmission gear is used for being fixedly arranged on a rotor of a generator in a sleeving mode, the transmission gear is meshed with the fixed rack, and the generator is fixed to the floating body. The device can better adapt to different sports environments, can efficiently collect and utilize sole sports energy, and is convenient for keeping long-term continuous power generation capacity.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy harvesting, and particularly relates to a plantar energy harvesting and power generation device. Background Art

[0002] With the development of technology, we still need to face the limitations of batteries, including relatively short lifespan, initial cost, self-discharge problems caused by leakage, pollution during battery recycling, the possibility of explosion due to its volatility, unfavorable discharge rate, and the scarcity of battery manufacturing raw materials such as lithium and nickel. To address the limitations of batteries and explore the possibility of reducing dependence on batteries, energy is generated or collected in real-time while in real-time use (self-powered). One of these possibilities is piezoelectric harvesting. With the increasing attention to green energy production and the demand for self-powered systems, the use of piezoelectric energy from mechanical vibrations, stress (such as footsteps) as an energy source has attracted considerable attention.

[0003] In recent years, generating electrical energy using footsteps has been applied to people's daily lives. This energy comes from the piezoelectric effect of materials. This study describes the use of piezoelectric materials to generate and store vibrational energy caused by human walking and other types of vibrations. The operating concept of the footstep power generation system is based on piezoelectric sensors. When the floor is built using piezoelectric technology, the floor sensors capture the electrical energy generated by pressure, and then the sensors convert it into charge. These sensors are placed in appropriate locations or areas with frequent human activities, such as sidewalks, treadmills, urban shopping centers, shopping malls, etc., and places with appropriate safety devices and equipment such as circuit breakers or shock absorbers.

[0004] Nowadays, it has become quite common to use piezoelectric sensors in footwear to harvest plantar energy for power generation. There are mainly three types of insole sensor placement methods, namely, embedded type, point protrusion type, and surface protrusion type, that is, the corresponding piezoelectric sensors are set between the soles, above or below the soles, using the stress generated by body weight during walking. The pressure becomes mechanical energy, and during walking, the piezoelectric sensors convert the mechanical energy into piezoelectric energy to achieve the purpose of power generation. To maximize the energy collected by this method, the piezoelectric sensors are placed in the heel and metatarsal regions of the sole. However, this method of using piezoelectric sensors for plantar energy harvesting is relatively fragile and easily causes damage or failure of the piezoelectric sensors. Especially in environments with large vibrations such as running and jumping, the piezoelectric sensors may be restricted and unable to accurately sense large-amplitude vibration signals, making it difficult to better utilize the plantar motion energy, and it is also easily affected by mechanical shock or overload and difficult to maintain the power generation ability for a long time. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the object of the present invention is to provide a plantar energy harvesting and power generation device, which can better adapt to different exercise environments, can efficiently collect and utilize the plantar motion energy, and is convenient for maintaining long-term continuous power generation ability.

[0006] The technical solution of the present invention is as follows: A plantar energy harvesting and power generation device, including a shoe body, a working cavity is provided inside the sole of the shoe body, a wave-like power generation simulation unit is arranged in the working cavity, the wave-like power generation simulation unit includes a liquid medium contained in the working cavity, and further includes: A cylinder, vertically arranged in the working cavity, and the lower end of the cylinder is fixedly connected to the bottom wall of the working cavity; A floating body, placed in the working cavity and slidably connected to the cylinder or the side wall of the working cavity, and the floating body floats on the surface of the liquid medium, and the liquid medium is used to provide wave energy for the floating body; A generator, installed on the floating body, and the generator is electrically connected to an energy storage module for power storage; A gear-rack assembly, including a fixed rack and a transmission gear, the fixed rack is fixedly connected to the cylinder or the side wall of the working cavity, the transmission gear is used to be sleeved and fixed on the rotor of the generator, and the transmission gear meshes with the fixed rack.

[0007] Thus, during the movement of the foot, the fluidity of the liquid medium is used to form a wave-like motion characteristic in the working cavity, and the wave energy is transmitted to the floating body, so that the floating body drives the generator to move up and down with the undulation of the liquid medium, thereby realizing the meshing of the transmission gear and the fixed rack, and further providing drive for the rotor of the generator through the meshing of the transmission gear and the fixed rack, so that the generator converts mechanical energy into electrical energy to achieve power generation, thereby being able to collect and utilize plantar energy more fully and with higher utilization rate.

[0008] Preferably, an energy harvesting and conversion unit is further arranged in the working cavity, and the energy harvesting and conversion unit includes: An elastic coil, arranged in the working cavity, the upper and lower ends of the elastic coil are respectively fixedly connected to the upper and lower side walls of the working cavity, the elastic coil is made of a conductive material, and the elastic coil is sleeved on the cylinder, and the elastic coil is a conductive metal spring; A permanent magnet, inserted into the elastic coil and fixedly connected to the bottom wall of the working cavity at the lower end, and having a spacing from the side wall of the working cavity at the upper end; A power conversion module is arranged in the working cavity and is electrically connected to the energy storage module. The power conversion module has a positive connection end and a negative connection end, and the positive connection end and the negative connection end are respectively connected to both ends of the elastic coil through wires. The power conversion module is used to convert the electromotive force generated by the elastic coil cutting the magnetic field around the permanent magnet into electrical energy and transmit it to the energy storage module for storage.

[0009] During the process of plantar movement, the elastic coil expands and contracts to cut the magnetic field around the permanent magnet, forming a movement of cutting magnetic induction lines, so as to better realize the full utilization of plantar energy.

[0010] Preferably, the liquid medium in the working cavity includes water or oil. Using oil or water can better ensure the support of buoyancy and is also more cost-saving.

[0011] Preferably, the floating body is connected to one side of the elastic coil close to the top of the working cavity through a pull rope. The length of the pull rope is less than the length of the elastic coil at rest, and the length of the pull rope is greater than the distance between the water surface and the top wall of the working cavity when the liquid medium is at rest.

[0012] The floating body is connected to the top end of the elastic coil through a pull rope. The self-gravity of the floating body and the power generation chamber can cooperate with the expansion and contraction of the elastic coil to realize the up and down movement of the floating body and the power generation chamber. At the same time, by cooperating with the wave energy generated by the liquid medium, it is ensured that a continuous acting force can be provided for the whole floating body and the power generation chamber during the movement process.

[0013] Preferably, a stable housing is arranged in the working cavity. The stable housing is embedded in the working cavity and is attached to the side wall of the working cavity. An opening is provided on the upper side of the stable housing, and a movable block is inserted into the opening. The movable block is slidably connected to the side wall of the stable housing. The upper end of the movable block extends out of the upper end of the stable housing and is fixedly connected to the shoe body. The upper end of the elastic coil is fixedly connected to the movable block, and the lower end is fixedly connected to the bottom wall of the stable housing. The lower end of the permanent magnet is fixedly connected to the bottom wall of the stable housing, and there is a distance between the upper end and the side wall of the movable block.

[0014] Preferably, a plurality of piezoelectric sheets are evenly distributed in the shoe body. The piezoelectric sheets are electrically connected to an energy collection module. The energy collection module is arranged in the working cavity and is electrically connected to the energy storage module. The energy collection module is used to collect the low voltage generated by the piezoelectric sheets and transmit and store it in the energy storage module.

[0015] Preferably, a pressure gasket is further provided between the upper end of the elastic coil and the movable block. The pressure gasket is connected to the movable block and the upper end of the elastic coil, and the pressure gasket is electrically connected to the power conversion module. The power conversion module is used to convert the vibration mechanical energy generated by the pressure gasket into electrical energy. In practical applications, the pressure gasket can further cooperate with the elastic coil to assist in rebounding, strengthen the device structure, maximize the stability of the elastic coil in the vertical movement direction, and improve efficiency. The rebounding effect of the pressure gasket can reduce energy loss during the multiple reciprocating movements of the elastic coil. Moreover, since the friction coefficient between the elastic coil and the ground is very small, the energy loss is small and the power generation efficiency is high.

[0016] Compared with the prior art, a plantar energy harvesting and power generation device of the present invention has the following beneficial effects: 0. In the working chamber of the present device, a floating body and a generator are also provided, and a liquid medium capable of generating buoyancy for the floating body is injected into the working chamber. During the movement process, the liquid medium will rise and fall to produce a wave-like phenomenon, enabling the floating body to stably float up and down along the axis of the cylinder. Thus, the wave energy generation principle can be simulated inside the shoe sole, and the wave energy in the vertical direction can be transmitted to the rotor of the generator through the cooperation of the fixed rack and the transmission gear under the action of the floating body, that is, the wave energy is indirectly converted into the driving force of the generator, prompting the generator to generate electrical energy, and then the electrical energy is directly stored in the energy storage module for convenient use. Such a design can not only effectively cope with various movement environments and maintain continuous power generation ability, but also broaden the application scenarios of the device and improve the diversity and flexibility of its energy collection.

[0017] 2. In the present device, during the process of the shoe body moving by being carried by a human body, the elastic coil located in the working chamber of the shoe sole is effectively squeezed as a mover during the movement, generating a reciprocating telescopic movement phenomenon. During the telescopic movement of the elastic coil, the magnetic field generated by the permanent magnet is cut, that is, the magnetic induction line is cut, so that an electromotive force is generated in the elastic coil. Furthermore, the power conversion module is used to convert the electromotive force generated on the elastic coil into electrical energy and store it in the energy storage module to supply power to the electrical appliance. Therefore, by the cooperation of the elastic coil and the permanent magnet, the present device can better adapt to different movement environments, efficiently collect and utilize the plantar movement energy, and further maintain long-term continuous power generation ability. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the shoe body in the embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the energy collection and conversion unit in the embodiment of the present invention.

[0020] Figure 3 This is a schematic structural diagram of the floating body and the power generation chamber in the embodiment of the present invention.

[0021] Figure 4 This is a schematic structural diagram of the gear-rack assembly in the embodiment of the present invention.

[0022] Figure 5 This is a schematic structural diagram of the piezoelectric insole in the embodiment of the present invention.

[0023] Explanation of reference numerals: 1. Shoe body, 2. Working chamber, 3. Energy collection and conversion unit, 31. Elastic coil, 32. Permanent magnet, 33. Power conversion module, 34. Energy storage module, 4. Floating body, 5. Power generation chamber, 6. Fixed rack, 7. Driving gear, 8. Liquid medium, 9. Stable housing, 10. Movable block, 11. Piezoelectric insole, 12. Piezoelectric sheet, 13. Pressure gasket, 14. Power output interface. Detailed implementation manners

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present 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 only used to explain the present invention and are not used to limit the present invention.

[0025] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0026] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0027] See Figures 1 to 5As shown, in order to better adapt to different exercise environments, efficiently collect and utilize the plantar exercise energy, and facilitate maintaining long-term continuous power generation ability. This embodiment provides a plantar energy collection and power generation device, which includes a shoe body 1, a wave-like power generation simulation unit, and an energy collection and conversion unit 3. The sole of the shoe body 1 is made of an elastic material and is provided with a working cavity 2. Preferably, the working cavity 2 is arranged at the position of the heel. The energy collection and conversion unit 3 is installed in the working cavity 2. In addition, a power output interface 14 for facilitating connection with an electrical appliance is arranged on the side of the sole. When designing the power output port, it is necessary to ensure the sealing performance with the working cavity, and design a sealing ring and sealant. The energy collection and conversion unit 3 includes an elastic coil 31, a permanent magnet 32, a power conversion module 33, and an energy storage module 34. The elastic coil 31 is arranged in the working cavity 2. The upper and lower ends of the elastic coil 31 are respectively fixedly connected to the upper and lower side walls of the working cavity 2. The elastic coil 31 is made of a conductive material and is preferably set as a conductive metal spring. The permanent magnet 32 is inserted inside the elastic coil 31, and the lower end of the permanent magnet 32 is fixedly connected to the working cavity 2, and there is a gap between the upper end and the side wall of the working cavity 2. The power conversion module 33 is arranged in the working cavity 2. The power conversion module 33 has a positive connection end and a negative connection end, and the positive connection end and the negative connection end are respectively connected to both ends of the elastic coil 31 through wires. The power conversion module 33 is used to convert the electromotive force generated by the elastic coil 31 cutting the magnetic field around the permanent magnet 32 into electrical energy. The energy storage module 34 is arranged in the working cavity 2 and is connected to the output end of the power conversion module 33, and is used to store the electrical energy converted in the power conversion module 33 to supply power to the electrical appliance.

[0028] Specifically, when this device is in use, the shoe body 1 moves through human carrying. During the movement process, the elastic coil 31 located in the sole working cavity 2 is effectively squeezed as a mover and generates a reciprocating telescopic movement phenomenon. During the telescopic movement process of the elastic coil 31, it cuts the magnetic field generated by the permanent magnet 32, that is, makes a magnetic induction line cutting movement, so that the elastic coil 31 generates an electromotive force. Then, the power conversion module 33 is used to convert the electromotive force generated on the elastic coil 31 into electrical energy and store it in the energy storage module 34 to supply power to the electrical appliance. This device can actually be directly used as a miniature mobile power source. By converting the plantar exercise energy into electrical energy, it can then be used to emergently charge electrical appliances such as mobile phones and power banks, and has a wide range of application prospects. And through the design method of this device, compared with the traditional method of using piezoelectric sensors to collect electrical energy, this device uses the cooperation of the elastic coil 31 and the permanent magnet 32, can better adapt to different exercise environments, can efficiently collect and utilize the plantar exercise energy, and is convenient for maintaining long-term continuous power generation ability.

[0029] See Figures 2 to 4As shown in the figure, further, in order to adapt to different motion environments and achieve more efficient collection and utilization of plantar energy, a wave power generation simulation unit is also provided in the working chamber 2. Specifically, the wave power generation simulation unit includes a floating body 4, a power generation chamber 5, and a liquid medium 8 contained in the working chamber 2. The floating body 4 and the power generation chamber 5 are fixedly connected, and both are slidably connected to a vertically arranged column or to the side wall of the working chamber 2. The floating body 4 floats on the surface of the liquid medium 8. The liquid medium 8 is preferably an oil or water, etc. When using an oil, gasoline or diesel can be used for the oil. A generator is provided in the power generation chamber 5. The generator is electrically connected to the energy storage module 34. The rotor of the generator passes through the power generation chamber 5 and is mechanically linked to the permanent magnet 32 or the side wall of the working chamber 2 through a gear-rack assembly. The gear-rack assembly is used to convert the movement of the floating body 4 in the liquid medium 8 into the power of the generator. The output end of the generator is electrically connected to the power conversion module 33. Among them, the gear-rack assembly includes a fixed rack 6 and a transmission gear 7. The fixed rack 6 is fixedly connected to the column or the side wall of the working chamber 2. The transmission gear 7 is sleeved and fixed on the rotor of the generator. The transmission gear 7 meshes with the fixed rack 6. Preferably, the limit formed by the sliding connection of the power generation chamber 5 and the floating body 4 with the side wall or column of the working chamber 2 can ensure the stable movement of the floating body 4 and the power generation chamber 5 while ensuring the stable meshing of the driven gear with the fixed rack 6. In addition, in this device, the permanent magnet 32 can also be directly used as the column. When the fixed rack 6 is fixedly connected to the permanent magnet 32, at this time, the power generation chamber 5 and the floating body 4 are both placed inside the elastic coil 31. When the column and the permanent magnet 32 are two independent and separate structural members, it is necessary to ensure that the top of the column and the top of the permanent magnet 32 are flush, and there is a gap reserved between both of them and the top wall of the working chamber 2. During installation, when installing the generator in the power generation chamber 5, sealing treatment should be done at each connection. Especially, a sealing treatment is adopted between the rotor of the generator and the side wall of the power generation chamber 5, which can effectively prevent the liquid inside the working chamber 2 from entering the power generation chamber and damaging the generator.

[0030] Thus, during the movement, the liquid medium 8 will rise and fall during the human movement, generating a wave-like phenomenon to push the floating body 4 to float. That is, the wave energy generated by the liquid medium 8 during the movement is used to provide wave energy to the floating body 4 and the power generation chamber 5. The movement of the floating body 4 drives a continuous mechanical movement between the transmission gear 7 and the fixed rack 6. Then, the rotation of the transmission gear 7 drives the rotation of the generator rotor, causing the generator to generate electrical energy. Such a design can not only effectively cope with various movement environments and maintain continuous power generation ability, but also broaden the application scenarios of the device and improve the diversity and flexibility of its energy collection. And by using the wave energy to push the floating body 4 to move, and then through the gear-rack assembly, the wave energy can be directly converted into the kinetic energy of the generator to realize power generation, and the electrical energy is directly stored in the energy storage module 34 for easy direct use. This process reduces the energy conversion link and achieves a high conversion efficiency. At the same time, the device has a simple structure, low cost, and is easy to maintain, ensuring its long service life. These characteristics make the device of the present invention have broad development prospects in the field of ocean energy development.

[0031] See Figure 2 As shown, further, in order to adapt to different movement environments and achieve more efficient collection and utilization of plantar energy. The floating body 4 is connected to one side of the elastic coil 31 near the top of the working chamber 2 through a pull rope. The length of the pull rope is set to be less than the length of the elastic coil 31 at rest, and the length of the pull rope is greater than the distance between the water surface at rest of the liquid medium 8 and the top wall of the working chamber 2. Thus, during use, the floating body 4 is connected to the top end of the elastic coil 31 through the pull rope. The self-gravity of the floating body 4 and the power generation chamber 5 can cooperate with the telescopic action of the elastic coil 31 to realize the up and down movement of the floating body 4 and the power generation chamber 5. At the same time, by cooperating with the wave energy generated by the liquid medium 8, it is ensured that a continuous acting force can be provided to the whole floating body 4 and the power generation chamber 5 during the movement, realizing the continuous meshing of the driven gear and the fixed rack 6 to provide driving force for the rotor of the generator and realizing power generation. Thus, the plantar movement energy can be collected more efficiently and can adapt to various movement environments.

[0032] See Figure 2As shown in the figure, further, in order to adapt to different motion environments and achieve more efficient collection and utilization of plantar energy, a stable housing 9 is provided in the working chamber 2. The stable housing 9 is embedded in the working chamber 2 and is in contact with the side wall of the working chamber 2. An opening is provided on the upper side of the stable housing 9, and a movable block 10 is inserted into the opening. The movable block 10 is slidably connected to the side wall of the housing, and the upper end of the movable block 10 extending out of the housing is fixedly connected to the shoe body 1. With such a design, the above-mentioned wave-like power generation simulation unit and energy collection and conversion unit 3 are both arranged inside the housing. The upper end of the elastic coil 31 is fixedly connected to the movable block 10, and the lower end is fixedly connected to the bottom wall of the housing. The lower end of the permanent magnet 32 is fixedly connected to the bottom wall of the housing, and there is a spacing between the upper end and the side wall of the movable block 10. Preferably, both the housing and the movable block 10 are made of rigid materials. During installation, the liquid in the stable housing 9 needs to ensure that the fit between the movable block 10 and the side wall of the opening of the stable housing 9 meets the sealing requirements, and the movable block 10 always keeps the opening of the stable housing 9 blocked during the sliding process to avoid liquid leakage.

[0033] During use, during the movement of the footsteps, the gravity directly acts on the movable block 10 through the sole of the shoe. By utilizing the sliding action between the movable block 10 and the housing and the stable cooperation of the rigid materials of the movable block 10 and the housing, the stable expansion and contraction of the elastic coil 31 can be ensured, so that the cutting of the magnetic field of the permanent magnet 32 remains stable and effective, which is convenient for better adapting to different motion environments to achieve more efficient collection and utilization of plantar energy.

[0034] See Figure 1 and Figure 5 As shown in the figure, further, in order to adapt to different motion environments and achieve more efficient collection and utilization of plantar energy, the device also integrates piezoelectric energy conversion. Specifically, a piezoelectric insole 11 is provided in the shoe body 1, and a plurality of piezoelectric sheets 12 are evenly distributed in the piezoelectric insole 11. The piezoelectric sheets 12 are electrically connected to an energy collection module. The energy collection module is arranged in the working chamber 2 and is electrically connected to the energy storage module 34. The energy collection module collects the low voltage generated by the piezoelectric sheets 12 and transmits and stores it in the energy storage module 34. And in order to protect the safety performance of the energy collection module and ensure the full collection of piezoelectric energy, a pressure gasket 13 is also provided between the upper end of the elastic coil 31 and the movable block 10. The pressure gasket 13 is connected to the movable block 10. The energy collection module is installed in the pressure gasket 13. The pressure gasket 13 is connected to the upper end of the elastic coil 31, and the pressure gasket 13 is electrically connected to the power conversion module 33. The power conversion module 33 converts the vibration mechanical energy generated on the pressure gasket 13 into electrical energy. At the same time, in order to boost the generated low-voltage electrical energy to the rated voltage suitable for storage or application, a boost module is also provided. The boost module is included in the power conversion module 33 and is then stored in the energy storage module 34 to realize power supply for electrical appliances (such as power banks, mobile phones, MP3 players, etc.).

[0035] In addition, for the pressure gasket 13 provided between the upper end of the elastic coil 31 and the movable block 10, in practical applications, it can further cooperate with the elastic coil 31 to assist in the rebound, strengthen the device structure, maximize the stability of the elastic coil 31 in the vertical movement direction, and improve the efficiency. The rebound effect of the pressure gasket 13 can enable the elastic coil 31 to reduce energy loss during multiple cyclic reciprocating movements. Moreover, since the friction coefficient between the elastic coil 31 and the ground is very small, the energy loss is small and the power generation efficiency is high.

[0036] In summary, through its unique multi-mode design and various beneficial effects, the present invention provides a solution for the development of human walking energy harvesting that is efficient, low-cost, easy to produce, and has a long service life. The device design is simple and the structure is delicate, facilitating low-cost production. This design not only reduces the manufacturing cost but also makes the device more competitive in the process of popularization and application.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A sole energy collection and power generation device, comprising a shoe body (1), wherein a working chamber (2) is provided in the sole of the shoe body (1), characterized in that: A sea wave-like power generation simulation unit is provided in the working chamber (2), and the sea wave-like power generation simulation unit comprises a liquid medium (8) contained in the working chamber (2), and further comprises: A column body, vertically arranged in the working chamber (2), and the lower end of the column body is fixedly connected to the bottom wall of the working chamber (2); A floating body (4) is placed in the working chamber (2) and is slidably connected to the column or the side wall of the working chamber (2), and the floating body (4) floats on the surface of the liquid medium (8), and the liquid medium (8) is used to provide wave energy for the floating body (4); a generator mounted on the floating body (4), the generator being electrically connected to an energy storage module (34) for power storage; The rack and pinion assembly comprises a fixed rack (6) and a transmission gear (7), wherein the fixed rack (6) is fixedly connected to the column or the side wall of the working chamber (2), and the transmission gear (7) is used to be sleeved and fixed on the rotor of the generator, and the transmission gear (7) is meshed with the fixed rack (6).

2. A foot energy collection and power generation device according to claim 1, characterized in that: An energy collection and conversion unit (3) is also provided in the working chamber (2), and the energy collection and conversion unit (3) comprises: An elastic coil (31) is disposed in the working chamber (2), the upper and lower ends of the elastic coil (31) are respectively fixedly connected to the upper and lower side walls of the working chamber (2), the elastic coil (31) is made of a conductive material, and the elastic coil (31) is sleeved on the column; a permanent magnet (32) inserted into the elastic coil (31) and having a lower end fixedly connected to the bottom wall of the working chamber (2) and an upper end spaced apart from a side wall of the working chamber (2); A power conversion module (33) is arranged in the working chamber (2) and is electrically connected to the energy storage module (34). The power conversion module (33) has a positive connection end and a negative connection end. The positive connection end and the negative connection end are respectively connected to two ends of the elastic coil (31) through wires. The power conversion module (33) is used to convert the electromotive force generated by the elastic coil (31) cutting the magnetic field around the permanent magnet (32) into electric energy, and transmit it to the energy storage module (34) for storage.

3. The foot energy collection and power generation device according to claim 1, characterized in that: The liquid medium (8) in the working chamber (2) includes water or oil.

4. The foot energy collection and power generation device according to claim 2, characterized in that: The float (4) is connected to a side of the elastic coil (31) close to the top of the working chamber (2) via a pull rope, the length of the pull rope being shorter than the length of the elastic coil (31) when it is stationary, and the length of the pull rope being longer than the distance between the water surface and the top wall of the working chamber (2) when the liquid medium (8) is stationary.

5. The foot energy collection and power generation device according to claim 2, characterized in that: A stabilizing shell (9) is arranged in the working chamber (2). The stabilizing shell (9) is embedded in the working chamber (2) and is arranged in close contact with the side wall of the working chamber (2). An opening is arranged on the upper side of the stabilizing shell (9) and a movable block (10) is inserted into the opening. The movable block (10) is slidably connected to the side wall of the stabilizing shell (9). The upper end of the movable block (10) extending out of the stabilizing shell (9) is fixedly connected to the shoe body (1). The upper end of the elastic coil (31) is fixedly connected to the movable block (10), and the lower end is fixedly connected to the bottom wall of the stabilizing shell (9). The lower end of the permanent magnet (32) is fixedly connected to the bottom wall of the stabilizing shell (9), and the upper end is spaced apart from the side wall of the movable block (10).

6. The foot energy collection and power generation device according to claim 5, characterized in that: A plurality of piezoelectric sheets (12) are evenly distributed in the shoe body (1); the piezoelectric sheets (12) are electrically connected to an energy collection module; the energy collection module is arranged in the working chamber (2) and is electrically connected to an energy storage module (34); the energy collection module is used to collect the low voltage generated by the piezoelectric sheets (12) and transmit it to be stored in the energy storage module (34).

7. The foot energy collection and power generation device according to claim 5, characterized in that: A pressure gasket (13) is also provided between the upper end of the elastic coil (31) and the movable block (10), and the pressure gasket (13) is electrically connected to the power conversion module (33). The power conversion module (33) is used to convert the vibration mechanical energy generated by the pressure gasket (13) into electrical energy.

8. The foot energy collection and power generation device according to claim 2, characterized in that: The elastic coil (31) is a conductive metal spring.

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