Bicycle pedals

Abstract

The utility model provides a bicycle pedal, which comprises a pedal body, a pedal spindle and a piezoelectric plate structure. The pedal body is formed with a middle slot and is pivotally connected to a bicycle crankshaft so that the pedal body can rotate relative to the bicycle crankshaft. The pedal spindle is rotatably connected to the bicycle crankshaft and is inserted into the middle slot so that the pedal body can pivot relative to the pedal spindle, and the pedal spindle protrudes radially to form a first convex block. The piezoelectric plate structure is arranged in the middle slot and is located on one side of the pedal spindle. When the pedal body rotates with the bicycle crankshaft to rotate relative to the pedal spindle, the piezoelectric plate structure is squeezed and deformed by the first convex block to generate electric energy.

Description

Technical Field

[0001] The utility model relates to a bicycle pedal, in particular to a bicycle pedal which uses a convex block of a pedal spindle to compress a piezoelectric plate structure to generate electric energy. Background Art

[0002] Generally speaking, if you want to install electronic devices that consume power on a bicycle (such as pedal warning lights, turn signals, etc.), you usually need to install additional batteries on the bicycle to provide the power required for the operation of the electronic devices. However, with the rise of environmental awareness, the above-mentioned consumable batteries have been regarded as an environmentally unfriendly design.

[0003] Therefore, it is necessary to design a novel bicycle pedal to overcome the above-mentioned defectives. Utility Model Content

[0004] The utility model aims to provide a bicycle pedal which can use the protrusion of the pedal spindle to compress the piezoelectric plate structure to generate electric energy.

[0005] To achieve the above-mentioned purpose, the utility model provides a bicycle pedal, comprising: a pedal body, formed with a middle slot hole and pivotally connected to a bicycle crankshaft so that the pedal body can rotate relative to the bicycle crankshaft; a pedal spindle, rotatably connected to the bicycle crankshaft and inserted into the middle slot hole so that the pedal body can pivot relative to the pedal spindle, the pedal spindle radially protruding to form at least one first protrusion; and at least one piezoelectric plate structure, arranged in the middle slot hole and located on at least one side of the pedal spindle, the at least one piezoelectric plate structure is squeezed and deformed by the at least one first protrusion to generate electrical energy when the pedal body rotates with the bicycle crankshaft to rotate relative to the pedal spindle.

[0006] Preferably, the at least one piezoelectric plate structure includes two piezoelectric plates, the pedal body forms a fixed rib radially relative to the pedal spindle in the middle slot, the two piezoelectric plates are penetrated through the fixed rib to be respectively located on both sides of the pedal spindle and each has two free ends, the pedal spindle is radially protruded with at least one first protrusion and at least one second protrusion at positions corresponding to the two free ends of the piezoelectric plates; when the pedal body rotates with the bicycle crankshaft to pivot relative to the pedal spindle, the two free ends of each piezoelectric plate are respectively squeezed by the at least one first protrusion and the at least one second protrusion, so that each piezoelectric plate is deformed to generate electrical energy.

[0007] Preferably, the at least one first protrusion and the at least one second protrusion are formed by radially protruding from the pedal spindle in a staggered arrangement.

[0008] Preferably, the two free ends of each piezoelectric plate are respectively concavely bent toward the at least one first protrusion and the at least one second protrusion.

[0009] Preferably, the fixed end of the at least one piezoelectric plate structure is connected to the hole wall of the middle slot, and the pedal spindle is radially protruded to form the at least one first protrusion at a position corresponding to the free end of the at least one piezoelectric plate structure; when the pedal body rotates with the bicycle crankshaft to pivot relative to the pedal spindle, the free end of the at least one piezoelectric plate structure is squeezed by the at least one first protrusion, so that the at least one piezoelectric plate structure is deformed to generate electrical energy.

[0010] Preferably, the free end portion of the at least one piezoelectric plate structure is concavely bent toward the at least one first protrusion.

[0011] Preferably, the at least one piezoelectric plate structure includes two piezoelectric plates, both ends of which are connected to two opposite hole walls of the middle slot so as to be respectively located on both sides of the pedal spindle, and the pedal spindle is radially protruded with at least one first protrusion at a position corresponding to the middle section of the piezoelectric plate; when the pedal body rotates with the bicycle crankshaft to pivot relative to the pedal spindle, the middle section of each piezoelectric plate is squeezed by the at least one first protrusion, so that each piezoelectric plate is deformed to generate electrical energy.

[0012] Preferably, the middle section of each piezoelectric plate is concave toward the at least one first protrusion.

[0013] Preferably, it also includes: an energy storage unit, which is disposed in the pedal body and electrically connected to the at least one piezoelectric plate structure, for storing the electric energy generated by the at least one piezoelectric plate structure; and a control circuit, which is electrically connected to the energy storage unit, for controlling the output of the electric energy stored in the energy storage unit.

[0014] Preferably, it further comprises: a rectifying and voltage-stabilizing circuit electrically connected between the at least one piezoelectric plate structure and the electric energy storage unit, for rectifying and voltage-stabilizing the electric energy generated by the at least one piezoelectric plate structure.

[0015] Preferably, it further comprises: a light emitting unit, which is disposed on at least one side of the pedal body and is electrically connected to the control circuit, and is used for receiving the electric energy output by the control circuit to emit light.

[0016] Preferably, the device further comprises: a sensing unit electrically connected to the control circuit, for detecting the brightness of the ambient light so as to turn on or off the light emitting unit via the control circuit.

[0017] Preferably, the pedal body further comprises: a ball bearing, which is disposed in the pedal body and sleeved on the bicycle crankshaft and the pedal spindle, so that the pedal body can rotate along with the bicycle crankshaft via the ball bearing.

[0018] Compared with the prior art, the bicycle pedal provided by the embodiment of the utility model comprises a pedal body, a pedal spindle and at least one piezoelectric plate structure, the pedal body is formed with a middle slot and is pivotally connected to the bicycle crankshaft, so that the pedal body can rotate relative to the bicycle crankshaft; the pedal spindle is rotatably connected to the bicycle crankshaft and is inserted into the middle slot so that the pedal body can pivot relative to the pedal spindle, and the pedal spindle radially protrudes to form at least one first protrusion; at least one piezoelectric plate structure is arranged in the middle slot and is located on at least one side of the pedal spindle, and when the pedal body rotates with the bicycle crankshaft to rotate relative to the pedal spindle, the at least one piezoelectric plate structure is squeezed and deformed by the at least one first protrusion to generate electric energy. Compared with the prior art adopting the design of power supply by consumable batteries, the present invention adopts the piezoelectric power generation design of using the protrusion of the pedal spindle to squeeze the piezoelectric plate structure to generate electric energy, so as to solve the problem that the consumable battery is not environmentally friendly, thereby improving the environmental protection and power supply convenience of the bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a bicycle pedal proposed according to an embodiment of the utility model.

[0020] Figure 2 for Figure 1 Top view of a bicycle pedal.

[0021] Figure 3 for Figure 1 Functional block diagram of the electrical energy storage function of the bicycle pedals.

[0022] Figure 4 FIG. 4 is a top view of a bicycle pedal according to another embodiment of the present invention.

[0023] Figure 5 FIG. 4 is a top view of a bicycle pedal according to another embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to provide a further understanding of the purpose, structure, features and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0025] The following content will be accompanied by drawings to illustrate the technical content of the present application by means of specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied by means of other different specific embodiments. The details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. In particular, the connection relationship and relative position of each element in the drawings (such as the connection design and proportional size of the pedal and the bicycle crankshaft, etc.) are only for exemplary purposes and do not represent the actual situation of the implementation of the present application.

[0026] See also Figure 1 as well as Figure 2 , Figure 1 FIG. 1 is a three-dimensional schematic diagram of a bicycle pedal 10 according to an embodiment of the present invention. Figure 2 for Figure 1 The bicycle pedal 10 is a top view of a bicycle pedal 10. The bicycle pedal 10 can be used in common bicycles (such as non-powered bicycles, power-assisted bicycles, etc.) and is pivotally connected to a bicycle crankshaft 11 for the user to pedal to drive the bicycle forward. In order to clearly show the mechanical design of the bicycle pedal 10, the bicycle crankshaft 11 is Figure 1 Only part of the structure is briefly illustrated, and the relevant description of its structural design is common in the prior art and will not be repeated here. Figure 1 as well as Figure 2 As shown, the bicycle pedal 10 includes a pedal body 12, a pedal spindle 14, and a piezoelectric plate structure 16. The pedal body 12 is formed with a middle slot 18 and is pivotally connected to the bicycle crankshaft 11 so that the pedal body 12 can rotate relative to the bicycle crankshaft 11. The pedal spindle 14 is rotatably connected to the bicycle crankshaft 11 and is inserted into the middle slot 18 so that the pedal body 12 can pivot relative to the pedal spindle 14. The piezoelectric plate structure 16 is disposed in the middle slot 18 and is located on at least one side of the pedal spindle 14 (at Figure 1 In the design, the piezoelectric plate structure 16 is respectively arranged on both sides of the pedal spindle 14, but it is not limited to this. It can also adopt a single-sided piezoelectric plate configuration). Whereby, when the pedal body 12 rotates with the bicycle crankshaft 11 to rotate relative to the pedal spindle 14, the piezoelectric plate structure 16 can be squeezed and deformed by the protrusion on the pedal spindle 14 to generate electrical energy.

[0027] More specifically, in this embodiment, the piezoelectric plate structure 16 may include two piezoelectric plates 20, 22 (composed of piezoelectric ceramic material and preferably in a rectangular shape, but not limited thereto), the pedal body 12 may form a fixing rib 24 in the middle slot 18 relative to the radial direction of the pedal spindle 14, and the piezoelectric plates 20, 22 may be respectively penetrated through the fixing rib 24 to be respectively located on both sides of the pedal spindle 14 (such as Figure 2As shown) and each having two free ends P1, P2, wherein the positions of the pedal spindle 14 corresponding to the free ends P1, P2 of the piezoelectric plates 20, 22 can be respectively radially protruded to form at least one first protrusion 26 and at least one second protrusion 28 (at Figure 1 Preferably, five first protrusions 26 and five second protrusions 28 are arranged radially along the circumference of the pedal spindle 14 (but not limited to this design, only two of each are shown due to viewing angle). In this way, when the user steps on the bicycle pedal 10 and causes the pedal body 12 to rotate along with the bicycle crankshaft 11 to pivot relative to the pedal spindle 14, as the pedal body 12 and the pedal spindle 14 pivot relative to each other, the free ends P1 and P2 of the piezoelectric plates 20 and 22 can be squeezed by the first protrusions 26 and the second protrusions 28 respectively, so that the piezoelectric plates 20 and 22 are deformed accordingly and generate electrical energy through the positive piezoelectric effect (the relevant description of the positive piezoelectric effect power generation principle is common in the prior art and will not be repeated here) for subsequent power supply. In actual applications, the first protrusions 26 and the second protrusions 28 can preferably be formed by radially protruding from the pedal spindle 14 in a staggered arrangement (such as Figure 1 The piezoelectric plates 20 and 22 are preferably arranged in a manner such that the projections of the first protrusion 26 to the second protrusion 28 along the pedal axis 14 overlap, and the projections of the first protrusions 26 to the second protrusions 28 along the pedal axis 14 partially overlap. The free ends P1 and P2 of the piezoelectric plates 20 and 22 may be further bent toward the first protrusion 26 and the second protrusion 28, respectively, to increase the deformation amplitude of the piezoelectric plates 20 and 22 after being squeezed, thereby improving the piezoelectric power generation efficiency of the bicycle pedal 10.

[0028] In addition, the bicycle pedal 10 may further include a ball bearing (not shown in the figure, and its related description is common in the prior art, and will not be repeated here) disposed in the pedal body 12 and sleeved on the bicycle crankshaft 11 and the pedal spindle 14, so that the pedal body 12 can utilize the low rotation resistance characteristics of the ball bearing to rotate more smoothly with the bicycle crankshaft 11, thereby helping to improve the power generation efficiency and reduce energy loss of the bicycle pedal 10. On the other hand, the present invention can also use a gear transmission or a magnet repulsion design to replace the above-mentioned ball bearing connection design, so that the number of relative rotations between the pedal body 12 and the pedal spindle 14 can be increased by appropriately changing the gear transmission ratio or the arrangement of the magnets, so as to further improve the piezoelectric power generation efficiency of the bicycle pedal 10.

[0029] Regarding the storage and application of electrical energy of the bicycle pedal 10, please refer to Figure 3 , which is a functional block diagram of the electric energy storage of the bicycle pedal 10 in FIG. 1, as Figure 3As shown, the bicycle pedal 10 may further include an energy storage unit 30 and a control circuit 32. The energy storage unit 30 is disposed in the pedal body 12 and electrically connected to the piezoelectric plate structure 16. The energy storage unit 30 may be a common energy storage element (such as a rechargeable battery or a capacitor, etc.) for storing the electric energy generated by the piezoelectric plate structure 16. The control circuit 32 is electrically connected to the energy storage unit 30 to control the output of the electric energy stored in the energy storage unit 30. For example, in an environment with sufficient light (such as a sunny day), the control circuit 32 may control the energy storage unit 30 to only perform an energy storage action without outputting electric energy. On the contrary, in an environment with insufficient light (such as a cloudy day or at night), the control circuit 32 may control the energy storage unit 30 to output electric energy to turn on the bicycle lighting / warning light function. Furthermore, the bicycle pedal 10 may further include a rectifying and voltage-stabilizing circuit 34, which is electrically connected between the piezoelectric plate structure 16 and the electric energy storage unit 30, and is used to rectify and stabilize the electric energy generated by the piezoelectric plate structure 16, for example, rectifying the electric energy generated by the piezoelectric plate structure 16 and stabilizing it to 5 volts (but not limited thereto), thereby improving the power supply stability of the piezoelectric plate structure 16. As for the relevant description of the control circuit design of the control circuit 32 and the voltage-stabilizing circuit design of the rectifying and voltage-stabilizing circuit 34, they are common in the prior art and are not repeated here.

[0030] In practical applications, the electric energy generated by the piezoelectric plate structure 16 can be preferably used for the lighting function of the bicycle pedal. For example, the bicycle pedal 10 can further include a light-emitting unit 36 ​​(such as a light-emitting diode, but not limited thereto). The light-emitting unit 36 ​​is disposed on at least one side of the pedal body 12 (for example, Figure 1 The light emitting units 36 shown are respectively arranged on both sides of the pedal body 12, but are not limited thereto. They can also adopt a single-side light emitting configuration) and are electrically connected to the control circuit 32. Thus, the light emitting units 36 can receive the electric energy output by the control circuit 32 to control the electric energy storage unit 30 to emit light, thereby providing a pedal light warning function to ensure that the user can ride the bicycle more safely in a dark environment. In addition, the present invention can further adopt a brightness sensing design. For example, by Figure 3 It can be seen that the bicycle pedal 10 may further include a sensing unit 38, which may preferably be an ambient light sensor and electrically connected to the control circuit 32, whereby the sensing unit 38 may be used to detect the ambient light brightness and turn on or off the light-emitting unit 36 ​​via the control circuit 32 according to the detection result, for example, when the ambient light intensity is detected to be high, the light-emitting unit 36 ​​may be turned off to achieve energy-saving and environmental protection effects. It should be noted that the application of the electric energy generated by the piezoelectric plate structure 16 is not limited to the above-mentioned embodiment, and it may also be applied to other functions that require the use of electric energy to actuate, such as lighting / turn warning functions, etc., and the relevant descriptions may be referred to the above-mentioned embodiment by analogy, and will not be repeated here.

[0031] In summary, compared to the prior art that uses consumable battery power supply design, the present invention uses a piezoelectric power generation design that uses the protrusion of the pedal spindle to squeeze the piezoelectric plate structure to generate electricity, thereby solving the problem of consumable batteries being environmentally unfriendly, thereby improving the environmental friendliness and power supply convenience of the bicycle.

[0032] It is worth mentioning that the piezoelectric plate structure design adopted by the present invention is not limited to the above-mentioned embodiment, and it can also adopt a double-sided fixed design of the piezoelectric plate. For example, see Figure 4 , which is a top view of a bicycle pedal 100 according to another embodiment of the present invention. Elements in this embodiment with the same numbers as those in the above embodiment have similar structures or functions, and the relevant descriptions are not repeated here. Figure 4 As shown, the bicycle pedal 100 includes a pedal body 12, a pedal spindle 102 and a piezoelectric plate structure 104. In this embodiment, the piezoelectric plate structure 104 may include two piezoelectric plates 106 and 108 (composed of piezoelectric ceramic material and preferably in a rectangular shape, but not limited thereto). The two ends of the piezoelectric plates 106 and 108 are respectively connected to two hole walls W1 and W2 opposite to each other in the middle slot 18 so as to be respectively located on both sides of the pedal spindle 102. The pedal spindle 102 is radially protruded to form at least one first protrusion 110 (at Figure 4 In the embodiment, five first protrusions 110 are radially arranged along the circumference of the pedal spindle 102 (but not limited thereto, only three are shown due to the viewing angle). In this way, when the user steps on the bicycle pedal 100 and the pedal body 12 rotates with the bicycle crankshaft 11 to pivot relative to the pedal spindle 102, as the pedal body 12 and the pedal spindle 102 pivot relative to each other, the middle sections of the piezoelectric plates 106 and 108 can be squeezed by the first protrusions 110, so that the piezoelectric plates 106 and 108 are deformed accordingly and generate electrical energy through the positive piezoelectric effect for subsequent power supply. As for other designs for the bicycle pedal 100 (such as the piezoelectric plate concave design, the ball bearing connection design, the electrical energy storage design, etc.), the relevant descriptions can be referred to the above-mentioned embodiments by analogy, and will not be repeated here.

[0033] In addition, the present invention can also adopt a piezoelectric plate unilateral fixing design. For example, see Figure 5 , which is a top view of a bicycle pedal 150 according to another embodiment of the present invention. Elements in this embodiment with the same numbers as those in the above embodiment have similar structures or functions, and the relevant descriptions are not repeated here. Figure 5As shown, the bicycle pedal 150 includes a pedal body 12, a pedal spindle 102, and at least one piezoelectric plate structure 152 (at Figure 5 In the embodiment, the piezoelectric plate structure 152 is respectively arranged on both sides of the pedal spindle 102, but it is not limited thereto, and a single-side piezoelectric plate configuration can also be adopted. In this embodiment, the fixed end P3 of the piezoelectric plate structure 152 is connected to the hole wall of the middle slot hole 18, and the pedal spindle 102 is radially protruded to form a first protrusion 110 at the position corresponding to the free end P4 of the piezoelectric plate structure 152. In this way, when the user steps on the bicycle pedal 150 and causes the pedal body 12 to rotate with the bicycle crankshaft 11 to pivot relative to the pedal spindle 102, as the pedal body 12 and the pedal spindle 102 pivot relative to each other, the free end P4 of the piezoelectric plate structure 152 can be squeezed by the first protrusion 110, so that the piezoelectric plate structure 152 is deformed accordingly and generates electrical energy through the positive piezoelectric effect for subsequent power supply. As for other designs of the bicycle pedal 150 (such as the concave design of the piezoelectric plate, the ball bearing connection design, the electric energy storage design, etc.), the relevant descriptions can be inferred by referring to the above embodiments, and will not be repeated here.

[0034] In summary, the bicycle pedal provided by the utility model comprises a pedal body, a pedal spindle and at least one piezoelectric plate structure, the pedal body is formed with a middle slot and is pivotally connected to the bicycle crankshaft, so that the pedal body can rotate relative to the bicycle crankshaft; the pedal spindle is rotatably connected to the bicycle crankshaft and is inserted into the middle slot so that the pedal body can pivot relative to the pedal spindle, and the pedal spindle radially protrudes to form at least one first protrusion; at least one piezoelectric plate structure is arranged in the middle slot and is located on at least one side of the pedal spindle, and when the pedal body rotates with the bicycle crankshaft to rotate relative to the pedal spindle, the at least one piezoelectric plate structure is squeezed and deformed by the at least one first protrusion to generate electric energy. Compared with the prior art that adopts a consumable battery power supply design, the present invention adopts a piezoelectric power generation design that uses the protrusion of the pedal spindle to squeeze the piezoelectric plate structure to generate electric energy, thereby solving the problem that the consumable battery is not environmentally friendly, thereby improving the environmental protection and power supply convenience of the bicycle.

[0035] Although the utility model is described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred embodiments of the utility model and should not be construed as limiting the utility model. In order to clearly describe the required components, the proportions in the schematic drawings do not represent the proportional relationship of the actual components.

[0036] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A bicycle pedal, characterized in that: include: A pedal body is formed with a middle slot and is pivotally connected to a bicycle crankshaft so that the pedal body can rotate relative to the bicycle crankshaft; A pedal spindle, rotatably connected to the bicycle crankshaft and inserted into the middle slot hole so that the pedal body can pivot relative to the pedal spindle, and the pedal spindle is radially protruded to form at least one first protrusion; as well as At least one piezoelectric plate structure is arranged in the middle slot and located on at least one side of the pedal spindle. When the pedal body rotates with the bicycle crankshaft to rotate relative to the pedal spindle, the at least one piezoelectric plate structure is squeezed and deformed by the at least one first protrusion to generate electrical energy.

2. The bicycle pedal according to claim 1, characterized in that: The at least one piezoelectric plate structure includes two piezoelectric plates. The pedal body forms a fixed rib radially relative to the pedal spindle in the middle slot. The two piezoelectric plates are penetrated through the fixed rib to be respectively located on both sides of the pedal spindle and each has two free ends. The pedal spindle is radially protruded with at least one first protrusion and at least one second protrusion at positions corresponding to the two free ends of the piezoelectric plates. When the pedal body rotates with the bicycle crankshaft to pivot relative to the pedal spindle, the two free ends of each piezoelectric plate are respectively squeezed by the at least one first protrusion and the at least one second protrusion, so that each piezoelectric plate is deformed to generate electrical energy.

3. The bicycle pedal according to claim 2, characterized in that: The at least one first protrusion and the at least one second protrusion are formed by radially protruding from the pedal spindle in a staggered arrangement.

4. The bicycle pedal according to claim 2, characterized in that: The two free ends of each piezoelectric plate are respectively bent concavely toward the at least one first protrusion and the at least one second protrusion.

5. The bicycle pedal according to claim 1, wherein: The fixed end of the at least one piezoelectric plate structure is connected to the hole wall of the middle slot, and the pedal spindle is radially protruded to form the at least one first protrusion at a position corresponding to the free end of the at least one piezoelectric plate structure; when the pedal body rotates with the bicycle crankshaft to pivot relative to the pedal spindle, the free end of the at least one piezoelectric plate structure is squeezed by the at least one first protrusion, so that the at least one piezoelectric plate structure is deformed to generate electrical energy.

6. The bicycle pedal according to claim 5, characterized in that: The free end of the at least one piezoelectric plate structure is concavely bent toward the at least one first protrusion.

7. The bicycle pedal according to claim 1, wherein: The at least one piezoelectric plate structure includes two piezoelectric plates, both ends of which are connected to the two opposite hole walls of the middle slot to be respectively located on both sides of the pedal spindle, and the pedal spindle is radially protruded with at least one first protrusion at a position corresponding to the middle section of the piezoelectric plate; when the pedal body rotates with the bicycle crankshaft to pivot relative to the pedal spindle, the middle section of each piezoelectric plate is squeezed by the at least one first protrusion, so that each piezoelectric plate is deformed to generate electrical energy.

8. The bicycle pedal according to claim 7, characterized in that: The middle section of each piezoelectric plate is respectively concave toward the at least one first protrusion.

9. The bicycle pedal according to claim 1, wherein: Also includes: An electric energy storage unit is disposed in the pedal body and electrically connected to the at least one piezoelectric plate structure, and is used to store the electric energy generated by the at least one piezoelectric plate structure; as well as The control circuit is electrically connected to the electric energy storage unit and is used for controlling the output of the electric energy stored in the electric energy storage unit.

10. The bicycle pedal according to claim 9, wherein: Also includes: The rectifying and voltage-stabilizing circuit is electrically connected between the at least one piezoelectric plate structure and the electric energy storage unit, and is used for rectifying and voltage-stabilizing the electric energy generated by the at least one piezoelectric plate structure.

11. The bicycle pedal according to claim 9, wherein: Also includes: The light emitting unit is disposed on at least one side of the pedal body and is electrically connected to the control circuit, and is used for receiving the electric energy output by the control circuit to emit light.

12. The bicycle pedal according to claim 11, wherein: Also includes: The sensing unit is electrically connected to the control circuit and is used to detect the brightness of the ambient light so as to turn on or off the light emitting unit via the control circuit.

13. The bicycle pedal according to claim 1, wherein: Also includes: The ball bearing is arranged in the pedal body and sleeved on the bicycle crankshaft and the pedal spindle, so that the pedal body can rotate along with the bicycle crankshaft through the ball bearing.

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