Friction volt nanometer generator-based energy harvesting floor system

Abstract

An energy harvesting floor system based on friction volt nano-generators comprises a floor structure formed by combining a plurality of pedals, the friction volt nano-generators are arranged on the lower portions of part of or all the pedals, and the friction volt nano-generators are electrically connected with an energy storage module; a spring telescopic part is arranged below the connecting position of every two adjacent pedals and comprises a pressure bearing part and a base which are connected in an inserted mode, the bases are connected with the ground, the pressure bearing parts are located above the bases and movably connected with the pedals above the pressure bearing parts, and the movable connection means that the edges of the pedals can slide on the surfaces of the pressure bearing parts and are not separated from the pressure bearing parts. A spring is arranged between the pressure-bearing piece and the base, and the pedal can incline when being stressed, so that the length of a spring telescopic piece is changed. By embedding the friction volt nano generator unit below the pedal, mechanical energy generated by pedestrians and vehicles can be converted into electric energy. The application is wide, and energy self-sufficiency is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of generators, in particular to an energy-harvesting floor system based on a friction voltaic nanogenerator. Background Art

[0002] With the growing global demand for renewable energy and the improvement of environmental awareness, it is urgent to find new energy recovery methods. Especially in the context of rapid urbanization, there is a huge flow of people in public spaces, commercial centers and transportation hubs, and the mechanical energy on the ground is huge but not effectively utilized. Traditional energy utilization methods are neither economical nor environmentally friendly in these occasions.

[0003] As an emerging energy conversion technology, tribovoltaic nanogenerator (TVNG) technology can efficiently convert mechanical energy into DC power by utilizing the friction between metals (or semiconductors) and semiconductor materials. The development of this technology provides new possibilities for the sustainable and environmentally friendly use of energy. TVNG technology is particularly suitable for energy recovery in public areas due to its light weight, simple structure and ability to work stably under various environmental conditions.

[0004] However, to achieve large-scale application, several challenges still need to be addressed, such as energy conversion efficiency, equipment durability and maintenance complexity. In addition, there is a lack of system solutions on the market that can simultaneously meet the needs of efficient energy recovery and practical application. Therefore, developing a power generation floor system that integrates TVNG technology can not only effectively recover lost mechanical energy in crowded environments, but also enhance the energy self-sufficiency of public facilities, which is an important step in achieving energy sustainability. This system will help promote the development of smart buildings and urban infrastructure in a greener and smarter direction.

[0005] The existing technology uses a friction nanogenerator (TENG) to collect floor energy. For example, the patent application number is CN202211111212.8, and the name is a patent for a mechanical energy recovery floor based on a friction nanogenerator. It uses a vertical contact separation form to convert mechanical energy into electrical energy, but this method will inevitably cause a single section of the floor to move downward as a whole for a certain distance, causing the surface to sag, which can easily trip pedestrians or cause obstacles to driving. Summary of the invention

[0006] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides an energy-harvesting floor system based on a tribovoltaic nanogenerator.

[0007] The technical solution of the present invention is as follows:

[0008] An energy-harvesting floor system based on a tribovoltaic nanogenerator comprises a plurality of pedals combined into a floor structure, a tribovoltaic nanogenerator is arranged under some or all of the pedals, and the plurality of tribovoltaic nanogenerators are electrically connected to an energy storage module;

[0009] A spring expansion member is arranged below the connection between adjacent pedals. The spring expansion member includes a pressure-bearing member and a base that are plug-connected. The base is connected to the ground. The pressure-bearing member is located above the base and is movably connected to multiple pedals above it. The movable connection means that the edge of the pedal can slide on the surface of the pressure-bearing member without being separated from the pressure-bearing member. A spring is arranged between the pressure-bearing member and the base. When a part of the pedal is subjected to force, it will tilt and cause the length of the spring expansion member to change.

[0010] By embedding a tribovoltaic nanogenerator unit under the pedal, the mechanical energy generated by pedestrians and vehicles can be converted into electrical energy. It is not only suitable for public roads and sidewalks, but can also be installed in commercial buildings, parking lots and other areas where vehicles frequently pass by, widely promoting energy self-sufficiency. It provides an innovative solution for urban energy management, effectively utilizing a large amount of unused mechanical energy every day, reducing dependence on traditional power grids, and contributing to the realization of sustainable development goals.

[0011] The friction voltaic nanogenerator includes a shell, the upper end of which is open and fixedly connected to the bottom of the pedal, which can be bonded. A glass plate is arranged at the bottom of the shell, silicon is grown on the glass plate, and a gold-plated copper block is placed on the silicon. When either side of the pedal is tilted by external force, the shell will also tilt, and the gold-plated copper block will slide under the influence of gravity, and the friction between the gold-plated copper block and the silicon will generate direct current.

[0012] Moreover, when any pedal is tilted by force and the spring expansion member is pressed downward, the other pedals connected to the spring expansion member will be tilted together, so that the entire floor surface is connected, and the phenomenon of a single pedal sinking and forming a pit like TENG will not occur. This can effectively prevent pedestrians from tripping or impacts on vehicles.

[0013] There are gaps between adjacent pedals to prevent them from squeezing each other. Alternatively, elastic deformation pads are arranged on the edges of the pedals to prevent squeezing each other and make them beautiful and dustproof.

[0014] As one of the embodiments, the base includes a bottom bracket, a vertical plug rod is arranged above the bottom bracket, an elastic protrusion is arranged on the outer ring of the top of the vertical plug rod, a plug hole is arranged at the lower part of the pressure-bearing member, and a closing opening is arranged at the bottom outlet position, the size of the closing opening is smaller than the size of the plug hole, and the elastic protrusion of the vertical plug rod can enter the plug hole of the pressure-bearing member through the closing opening under pressure. By controlling the height of the elastic protrusion extending into the plug hole, the maximum inclination angle of the pedal can be controlled. When the pedal is tilted, the high end will pull the pressure-bearing member to move upward, and when the upper end of the closing opening of the pressure-bearing member touches the elastic protrusion, it can no longer rise unless it is under the action of a large pulling force. At this time, it is the maximum inclination angle of the pedal.

[0015] As one preferred embodiment, the pressure-bearing member includes a pressure cap, a pressure rod and a connecting member. The upper surface of the pressure cap is a circular plane, and the bottom is grooved. A connecting member is arranged in the groove. The pedal is movably connected to the connecting member in the pressure cap and can slide on the upper surface of the pressure cap.

[0016] The lower end of the pressure cap is connected to the pressure rod, a plug hole is arranged inside the pressure rod, and springs are arranged on the pressure rod and the plug rod outer sleeve of the base.

[0017] A plurality of rod holes are arranged on the upper surface of the pressure cap, and the connecting piece includes a moving rod, an anti-dropping plate and an anti-dropping cap;

[0018] One end of the moving rod is connected to the edge of the pedal, and the other end passes through the rod hole. The anti-dropping plate is located in the groove of the pressure cap, is larger than the rod hole, and is sleeved on the lower part of the moving rod. The anti-dropping cap is threadedly connected to the bottom of the moving rod.

[0019] The design of the pressure-bearing member, especially its combined use with the connecting member, is a major inventive point of this embodiment, and meets three usage requirements at the same time:

[0020] 1. It can satisfy the sliding of the pedal edge along the upper surface of the pressure-bearing part;

[0021] 2. It can prevent the pedal from separating from the pressure-bearing parts;

[0022] 3. For easy installation, the pedal, pressure cap and connector can be assembled in advance, and then the pressure cap and the pressure rod can be connected. The space under the pedal is limited, so how to simplify the assembly process, make it firmly connected and easy to maintain is the top priority in the design of pressure-bearing parts.

[0023] To further simplify the connection between the pressure cap and the pressure rod, the pressure rod includes a rod head and a rod body. The outer diameter of the rod head is the same as the outer diameter of the pressure cap and is larger than the outer diameter of the rod body. A sheath extends downward from the outer circle of the bottom end of the rod head, and a spring is placed between the inner wall of the sheath and the outer wall of the rod body.

[0024] The pressure cap and the rod head are threadedly connected.

[0025] Thus, after placing the pedal assembly on the pressure rod, the pressure rod can be rotated for assembly, which is convenient for fingers to operate from below. In addition, the sheath structure can increase the strength and prevent the spring from shifting or twisting, and provide a smooth area on the outer surface of the rod head, which will not hurt the hand when rotating.

[0026] As a further preferred solution, the top of the rod head is provided with an internal thread, and the lower end of the pressure cap is an external thread, so that the outer side of the rod head is a smooth area as a whole, which is convenient for manual rotation.

[0027] In order to reduce the discomfort caused by the tilt of the pedal when walking on it and to leave enough distance for the pedal to slide, the pedal is a regular hexagonal structure, so that each spring expansion member can support 3 pedals, which is a small number and is convenient for arranging the rod holes and connectors. The hexagon provides 6 tilt directions, which is a moderate number and close to smooth, and will not cause major obstacles to the passage of pedestrians and vehicles.

[0028] In the present invention, in order to facilitate the repair of damaged parts, a fixed pedal can be set at a certain distance. The fixed pedal is not provided with a friction voltaic nanogenerator and is plugged into the spring telescopic part, so that it is convenient to remove it and repair the movable pedal around the point.

[0029] In order to prevent the gap between adjacent movable pedals from being too large or too small when they slide freely, a support module can be connected to the center of the bottom of the friction voltaic nanogenerator. The bottom end of the support module is connected to the ground, and the top is universally connected to the center of the bottom of the friction voltaic nanogenerator. In this way, on the one hand, it can play the role of supporting the pedal, and the height of the pedal from the ground can be adjusted by adjusting the height of the support module to match the spring force; on the other hand, the rotation range of the pedal can also be controlled to prevent excessive deviation to one side.

[0030] Through the above design, the energy-harvesting floor system based on the tribovoltaic nanogenerator of the present invention has the following features:

[0031] Beneficial effects:

[0032] 1. Improved energy efficiency: The energy-capturing floor system can effectively recycle the mechanical energy generated by human walking and vehicles, convert it into electrical energy, and reduce dependence on traditional power grids.

[0033] 2. Environmentally friendly: By collecting environmental kinetic energy instead of fossil fuels through tribovoltaic nanogenerators, the carbon footprint is reduced and in line with sustainable development goals.

[0034] 3. Multifunctional application: In addition to power generation, this floor can also integrate display functions nearby for advertising or information indication, etc., adding additional commercial value and practicality.

[0035] 4. Compared with TENG, the floor surface has a smooth inclination transition, and there are no sudden pits that affect the passage of pedestrians and vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In the attached picture:

[0037] Figure 1 is a three-dimensional diagram of the energy-capturing floor system of Example 1;

[0038] Figure 2 for Figure 1 A front view of

[0039] Figure 3 for Figure 1 A top view of

[0040] Figure 4 This is a schematic diagram of the structure of a tribovoltaic nanogenerator;

[0041] Figure 5 It is a schematic diagram of the energy-capturing floor system in the static state in Example 3;

[0042] Figure 6 is a schematic diagram of a pedal in an inclined state in Example 3;

[0043] Figure 7 for Figure 5 A partial enlarged view of the X position;

[0044] Figure 8 for Figure 6 A partial enlarged view of the Y position;

[0045] Fig. 9 is a three-dimensional diagram of the spring expansion member in Example 3;

[0046] Fig.10 for Fig. 9 A front view of

[0047] Fig.11 for Fig.10 A cross-sectional view of

[0048] Fig.12 for Fig. 9 Exploded view of;

[0049] Fig.13 is a three-dimensional diagram of the pressure rod;

[0050] Fig.14 is a cross-sectional view of the compression rod;

[0051] Fig.15 is a three-dimensional diagram of a pressure cap;

[0052] Fig.16 It is the front view of the pressure cap;

[0053] Fig.17 This is a schematic diagram of the working principle of the tribovoltaic nanogenerator;

[0054] The components represented by the reference numerals in the figure are:

[0055] 1. Pedal; 2. Friction voltaic nanogenerator; 21. Gold-plated copper block; 22. Silicon; 23. Glass plate; 24. Shell; 3. Spring expansion member; 31. Pressure member; 311. Pressure cap; 3111. Rod hole; 312. Pressure rod; 3121. Rod head; 3122. Rod body; 313. Connector; 3131. Moving rod; 3132. Anti-slip disk; 3133. Anti-slip cap; 32. Spring; 33. Base; 331. Bottom support; 332. Insert rod; 333. Protrusion; 4. Energy storage module; 5. Support module. DETAILED DESCRIPTION

[0056] Example 1

[0057] See also Figure 1-Figure 4 A tribovoltaic nanogenerator-based energy-harvesting floor system includes a plurality of pedals 1 assembled into a floor structure, wherein the pedals 1 are in a regular hexagonal shape and are easy to splice. A tribovoltaic nanogenerator 2 is disposed under some or all of the pedals 1, and a plurality of tribovoltaic nanogenerators 2 are electrically connected to an energy storage module 4.

[0058] A spring expansion member 3 is arranged below the connection of the end points of adjacent pedals 1, and each spring expansion member 3 supports the end points of three pedals 1, leaving a gap between adjacent pedals 1 (to prevent too many and too messy lines, the gap is not reflected in the attached figure).

[0059] The spring telescopic member 3 includes a pressure-bearing member 31 and a base 33 that are plug-connected. The base 33 is connected to the ground. The pressure-bearing member 31 is located above the base 33 and is movably connected to multiple pedals 1 above it. The movable connection means that the edge of the pedal 1 can slide on the surface of the pressure-bearing member 31 without being separated from the pressure-bearing member 31. A spring 32 is arranged between the pressure-bearing member 31 and the base 33. The spring 32 supports the pressure-bearing member 31 to maintain a certain distance between it and the base 33. When a partial area of ​​the pedal 1 is subjected to force, it will tilt and cause the length of the spring telescopic member 3 to change.

[0060] By embedding the tribovoltaic nanogenerator 2 unit under the pedal 1, the mechanical energy generated by pedestrians and vehicles can be converted into electrical energy. It is not only suitable for public roads and sidewalks, but can also be installed in commercial buildings, parking lots and other areas where vehicles frequently pass by, widely promoting energy self-sufficiency. It provides an innovative solution for urban energy management, effectively utilizing a large amount of unused mechanical energy every day, reducing dependence on traditional power grids, and contributing to the realization of sustainable development goals.

[0061] See also Figure 4As shown, the tribovoltaic nanogenerator 2 includes a housing 24, the upper end of which is open and fixedly connected to the bottom of the pedal 1, which can be bonded. A glass plate 23 is arranged at the bottom of the housing 24, silicon 22 is grown on the glass plate 23, and a gold-plated copper block 21 is placed on the silicon 22. When any side of the pedal 1 is tilted by an external force, the housing 24 will also tilt, and the gold-plated copper block 21 will slide under the influence of gravity, and the friction between the gold-plated copper block 21 and the silicon 22 will generate direct current.

[0062] The working principle of the tribovoltaic nanogenerator is as follows Fig.17 As shown. In the initial state, the gold-plated copper block 21 remains stationary and maintains good contact with silicon 22. Due to the difference in Fermi energy levels at the contact between the gold-plated copper block and silicon, electrons with a higher Fermi energy level will flow from silicon to the gold-plated copper block side. The flow of electrons makes the surface of the gold-plated copper block negatively charged and the surface of silicon positively charged, as shown in ①. When the gold-plated copper block slides from left to right, the electrons gain friction energy and jump to silicon, and the external circuit generates a current from ITO to the gold-plated copper block (②). As shown in ③, after the metal slider stops sliding on the semiconductor, the system reaches a new equilibrium and no current is generated. When the gold-plated copper block slides again, the same current as before is generated. Therefore, through the continuous sliding of the gold-plated copper block, the friction volt nanogenerator can generate continuous direct current. It can directly carry low-power devices such as LED lights, thermometers and hygrometers, buzzers, and electronic clocks. At the same time, the positive and negative poles of the friction volt nanogenerator are connected to the battery for energy storage.

[0063] In addition, when any pedal 1 is tilted by force and the spring expansion member 3 is pressed downward, the other pedals 1 connected to the spring expansion member 3 will be tilted together, and the other pedals will drive the adjacent pedals to tilt together, but the tilt amplitude gradually decreases, so that the entire floor surface is connected, and the phenomenon of a single pedal 1 sinking and forming a pit like TENG will not occur. It can effectively prevent pedestrians from tripping or impact on vehicles.

[0064] In this embodiment, the gap between adjacent pedals 1 is preferably such that the adjacent pedals do not squeeze each other. Alternatively, an elastic deformation pad is arranged on the edge of the pedal 1 to prevent squeezing each other and to be beautiful and dustproof.

[0065] In this embodiment, in order to reduce the discomfort caused by the tilt of the pedal 1 when walking on the pedal 1 and to leave enough sliding distance for the pedal 1, the pedal 1 is designed as a regular hexagonal structure, so that each spring expansion member 3 can support three pedals 1, which is a small number and is convenient for arranging the rod holes 3111 and the connecting members 313. Moreover, the hexagon provides six tilting directions, which is a moderate number and close to smooth, and will not cause a large obstacle to the passage of pedestrians and vehicles.

[0066] In the present invention, in order to facilitate the repair of damaged parts, a fixed pedal 1 can be set at a certain distance. The fixed pedal 1 is not provided with a friction voltaic nanogenerator 2, and is plugged into the spring telescopic member 3, so that the movable pedal 1 around the point can be repaired after being removed.

[0067] Example 2

[0068] See also Figure 5 and Figure 6 As shown, in order to prevent the gap between adjacent movable pedals 1 from being too large or too small when they slide freely, a support module 5 can be connected to the center of the bottom of the friction voltaic nanogenerator 2. The length of the support module 5 is adjustable, the bottom end is connected to the ground, and the top is universally connected to the center of the bottom of the friction voltaic nanogenerator 2. In this way, on the one hand, it can play the role of supporting the pedal 1, and the height of the pedal 1 from the ground can be adjusted by adjusting the height of the support module 5 to match the elastic force of the spring 32; on the other hand, the rotation range of the pedal 1 can also be controlled to prevent excessive deviation to one side.

[0069] Example 3

[0070] Based on the embodiment 2, this embodiment combines the specific structure of the spring expansion member 3. Figure 5-Figure 16 , one of the implementation methods is introduced.

[0071] See also Fig.11 The base 33 includes a circular bottom bracket 331, a vertical plug rod 332 is arranged at the center position above the bottom bracket 331, and an elastic protrusion 333 is arranged on the outer circle of the top of the vertical plug rod 332. The elastic protrusion 333 is a spherical structure, and half of the outer area is exposed under the action of the internal spring.

[0072] The lower part of the pressure-bearing member 31 is provided with a socket, and a closure is provided at the bottom outlet position. The size of the closure is smaller than the size of the socket and slightly larger than the diameter of the vertical plug rod 332. The elastic protrusion 333 of the vertical plug rod 332 can enter the socket of the pressure-bearing member 31 through the closure under pressure. By controlling the height of the elastic protrusion 333 extending into the socket, the maximum tilt angle of the pedal 1 can be controlled. When the pedal 1 is tilted, the high end will pull the pressure-bearing member 31 to move upward. When the upper end of the closure of the pressure-bearing member 31 touches the elastic protrusion 333, it can no longer rise unless it is under the action of a large pulling force. At this time, the pedal 1 has the maximum tilt angle.

[0073] In this embodiment, the pressure-bearing member 31 includes a pressure cap 311, a pressure rod 312 and a connecting member 313. The upper surface of the pressure cap 311 is a circular plane, and the bottom is grooved. The connecting member 313 is arranged in the groove. The pedal 1 is movably connected to the connecting member 313 in the pressure cap 311 and can slide on the upper surface of the pressure cap 311.

[0074] The lower end of the pressing cap 311 is connected to the pressing rod 312 , a plug hole is arranged inside the pressing rod 312 , and a spring 32 is arranged on the outer sleeve of the pressing rod 312 and the plug rod 332 of the base 33 .

[0075] See also Fig.15 and Fig.16 The upper surface of the pressure cap 311 is evenly distributed with three rod holes 3111, and the connecting member 313 includes a moving rod 3131, an anti-dropping plate 3132 and an anti-dropping cap 3133;

[0076] One end of the moving rod 3131 is connected to the edge of the pedal 1 , and the other end passes through the rod hole 3111 . Preferably, the moving rod 3131 can also be made integrally with the pedal 1 .

[0077] The diameter of the moving rod 3131 and the diameter of the rod hole 3111 are determined according to the designed maximum tilt angle of the pedal 1. When the pedal 1 reaches the maximum tilt angle, the moving rod 3131 will not interfere with the edge of the rod hole 3111. Figure 8 shown.

[0078] The anti-drop disc 3132 is a disc larger than the rod hole 3111, located in the slot of the pressure cap 311, and sleeved on the lower part of the moving rod 3131. The anti-drop cap 3133 is spherical, with a diameter larger than the moving rod 3131, and is provided with a section of thread, which is connected to the bottom of the moving rod 3131 through threads.

[0079] After the anti-slip cap 3133 is threadedly connected to the bottom of the moving rod 3131, the distance between the top and the root of the moving rod 3131 is greater than the sum of the depth of the rod hole 3111 and the thickness of the anti-slip disc 3132, so as to ensure that the anti-slip disc 3132 has a certain moving space, and when the pedal 1 tilts and drives the connecting piece 313 to tilt together, it will not interfere with the top surface of the groove in the pressure cap 311.

[0080] The design of the pressure-bearing member 31, especially the combined use with the connecting member 313, is a major inventive point of this embodiment, and satisfies three usage requirements at the same time:

[0081] 1. It can satisfy the requirement that the edge of the pedal 1 slides along the upper surface of the pressure-bearing member 31;

[0082] 2. It can prevent the pedal 1 from separating from the pressure-bearing member 31;

[0083] 3. For easy installation, the pedal 1, the pressure cap 311 and the connecting piece 313 can be assembled in advance, and then the pressure cap 311 and the pressure rod 312 can be connected. The space below the pedal 1 is limited, and how to simplify the assembly process, make it firmly connected, and facilitate maintenance is the top priority in the design of the pressure-bearing part 31.

[0084] Combine the following Fig.13 and Fig.14In order to further simplify the connection method between the pressure cap 311 and the pressure rod 312, the pressure rod 312 includes a rod head 3121 and a rod body 3122. The outer diameter of the rod head 3121 is the same as the outer diameter of the pressure cap 311 and is larger than the outer diameter of the rod body 3122. A sheath extends downward from the outer circle of the bottom end of the rod head 3121, and a spring 32 is placed between the inner wall of the sheath and the outer wall of the rod body 3122.

[0085] The pressing cap 311 and the rod head 3121 are threadedly connected.

[0086] Thus, after placing the pedal assembly 1 on the pressure rod 312, the pressure rod 312 can be rotated to assemble, which is convenient for fingers to operate below. In addition, the sheath structure can increase the strength to prevent the spring 32 from shifting or twisting, and provide a smooth area on the outer surface of the rod head 3121 to avoid hurting the hand when rotating.

[0087] As a further preferred solution, the top of the rod head 3121 is provided with an internal thread, and the lower end of the pressure cap 311 is an external thread, so that the outer side of the rod head 3121 is a smooth area as a whole, which is convenient for manual rotation.

Claims

1. An energy-harvesting floor system based on a tribovoltaic nanogenerator, characterized in that: It comprises a plurality of pedals (1) combined into a floor structure, wherein a friction voltaic nanogenerator (2) is arranged under some or all of the pedals (1), and the plurality of friction voltaic nanogenerators (2) are electrically connected to an energy storage module (4); A spring expansion member (3) is arranged below the connection between adjacent pedals (1), the spring expansion member (3) comprising a plug-connected pressure-bearing member (31) and a base (33), the base (33) being connected to the ground, the pressure-bearing member (31) being located above the base (33) and being movably connected to a plurality of pedals (1) above the pressure-bearing member (31), a spring (32) being arranged between the pressure-bearing member (31) and the base (33), and when a partial area of ​​the pedal (1) is subjected to force, it will tilt and cause the length of the spring expansion member (3) to change.

2. The energy-capturing floor system according to claim 1, characterized in that: The tribovoltaic nanogenerator (2) comprises a shell (24), the upper end of the shell (24) is open and fixedly connected to the bottom of the pedal (1), a glass plate (23) is arranged at the bottom of the shell (24), silicon (22) is grown on the glass plate (23), a gold-plated copper block (21) is placed on the silicon (22), and the gold-plated copper block (21) can generate sliding friction with the silicon (22) to generate direct current when the pedal (1) is tilted.

3. The energy-capturing floor system according to claim 1, characterized in that: A gap is left between adjacent pedals (1) so that they will not be squeezed against each other.

4. The energy-capturing floor system according to claim 1, characterized in that: The base (33) comprises a bottom bracket (331), a vertical plug rod (332) is arranged above the bottom bracket (331), an elastic protrusion (333) is arranged on the top outer ring of the vertical plug rod (332), a plug hole is arranged at the lower part of the pressure-bearing member (31), and a closing opening is arranged at the bottom outlet position, the size of the closing opening is smaller than the size of the plug hole, and the elastic protrusion (333) of the vertical plug rod (332) can enter the plug hole of the pressure-bearing member (31) through the closing opening under pressure.

5. The energy-capturing floor system according to claim 4, characterized in that: The pressure-bearing member (31) comprises a pressure cap (311), a pressure rod (312) and a connecting member (313); the upper surface of the pressure cap (311) is a circular plane, the bottom is grooved, and the connecting member (313) is arranged in the groove; the pedal (1) is movably connected to the connecting member (313) in the pressure cap (311) and can slide on the upper surface of the pressure cap (311); The lower end of the pressure cap (311) is connected to a pressure rod (312), a plug hole is arranged inside the pressure rod (312), and a spring (32) is arranged on the outer sleeve of the pressure rod (312) and the plug rod (332) of the base (33).

6. The energy-capturing floor system according to claim 5, characterized in that: The upper surface of the pressure cap (311) is provided with a plurality of rod penetration holes (3111), and the connecting member (313) comprises a moving rod (3131), an anti-dropping disc (3132) and an anti-dropping cap (3133); One end of the moving rod (3131) is connected to the edge of the pedal (1), and the other end passes through the rod-penetrating hole (3111). The anti-slip disc (3132) is located in the groove of the pressure cap (311), has a size larger than the rod-penetrating hole (3111), and is sleeved on the lower part of the moving rod (3131). The anti-slip cap (3133) is threadedly connected to the bottom of the moving rod (3131).

7. The energy-capturing floor system according to claim 5, characterized in that: The pressure rod (312) comprises a rod head (3121) and a rod body (3122); the outer diameter of the rod head (3121) is the same as the outer diameter of the pressure cap (311) and is larger than the outer diameter of the rod body (3122); a sheath is extended downward from the outer circle of the bottom end of the rod head (3121); a spring (32) is placed between the inner wall of the sheath and the outer wall of the rod body (3122).

8. The energy-capturing floor system according to claim 7, characterized in that: The pressing cap (311) and the rod head (3121) are threadedly connected.

9. The energy-capturing floor system according to claim 1, characterized in that: The pedal (1) is a regular hexagonal structure, and each spring expansion member (3) can support three pedals (1).

10. The energy-capturing floor system according to claim 1, characterized in that: A support module (5) is also connected to the center of the bottom of the friction voltaic nanogenerator (2); the bottom of the support module (5) is connected to the ground, and the top is universally connected to the center of the bottom of the friction voltaic nanogenerator (2).

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