A pendulum driving mechanical energy storage power generation device

Abstract

The application discloses a pendulum driving type mechanical energy storage power generation device, which comprises a base, a pendulum, an input transmission mechanism, a first one-way transmission device, an intermediate shaft, a second one-way transmission device, a spiral spring energy storage device, a one-way locking mechanism, a trigger release mechanism and a generator. The first one-way transmission device converts the bidirectional swing of the pendulum into unidirectional rotation of the intermediate shaft, and the energy storage shaft is driven to rotate and tighten the spiral spring accumulator through the second one-way transmission device; the trigger release mechanism senses the change of the outer diameter of the spiral spring, and when the energy storage reaches a threshold value, the one-way locking mechanism is released, the spiral spring releases energy to drive the generator to generate electricity. When the release, the second one-way transmission device automatically overruns, the transmission chain of the energy storage shaft and the intermediate shaft is disconnected, and the energy storage and the release do not interfere with each other. The application realizes the energy storage state sensing and automatic switching in a pure mechanical mode, has a simple structure and high reliability, and is suitable for being worn on animals or human bodies or being carried on moving objects, and can provide supplementary charging for low-power electronic equipment.

Description

Technical Field

[0001] This invention relates to the field of kinetic energy generation, and more particularly to a power generation device that uses swing kinetic energy for energy storage and centralized release, which can be worn on live animals or mounted on moving objects to provide supplementary charging for low-power electronic devices. Background Technology

[0002] In applications such as pet tracking and livestock monitoring, it is often necessary to continuously power low-power electronic devices such as trackers and sensors worn on animals. Utilizing the kinetic energy generated by the animal's own movement to generate electricity is an effective way to achieve long-term maintenance-free operation of the equipment.

[0003] Existing technologies have disclosed devices that utilize a pendulum to capture oscillating kinetic energy and store it through a spiral spring, releasing the accumulated energy to drive a generator. These devices improve power generation efficiency by converting low-frequency, irregular motion into the elastic potential energy of the spiral spring, achieving a relatively stable rotational speed output during the release phase.

[0004] However, such devices still face the following problems in practical applications: To switch between energy storage and release modes, electronic sensors are typically needed to detect the energy storage state of the spiral spring, and a control circuit is used to drive the actuator to complete the mode transition. This not only increases the complexity and power consumption of the system but also reduces the reliability and maintenance-free nature of the device in unattended scenarios such as animal wear. How to automatically and reliably determine the energy storage state using only a purely mechanical structure, and automatically switch to the release state when energy storage is complete and automatically reset after release, is a technical problem that urgently needs to be solved for such devices. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides a hammer-driven mechanical energy storage and power generation device that can automatically sense the energy storage state of the spiral spring using a purely mechanical mechanism. When the energy storage is complete, the transmission chain is automatically cut off and the energy is released to drive power generation. After the energy is released, the device automatically resets and re-stores energy, thereby realizing a fully automatic, maintenance-free intermittent power generation cycle and providing a reliable supplementary charging power for low-power wearable or electronic devices.

[0006] The technical solution adopted in this invention is as follows: A pendulum-driven mechanical energy storage and power generation device, comprising:

[0007] Base;

[0008] The pendulum is oscillatingly connected to the base via a first pivot.

[0009] The input transmission mechanism includes a first gear coaxially fixed on the first rotating shaft and a second gear meshing with the first gear. The second gear is rotatably supported on the base via the second rotating shaft.

[0010] The first unidirectional actuator has its input end connected to the second rotating shaft for converting the bidirectional rotation of the second rotating shaft into unidirectional intermittent rotation output.

[0011] The intermediate shaft is connected to the output end of the first one-way drive.

[0012] A second one-way actuator has its input end connected to the intermediate shaft and its output end connected to an energy storage shaft. The second one-way actuator is configured to allow torque to be transmitted from the intermediate shaft to the energy storage shaft and to allow the energy storage shaft to rotate beyond the intermediate shaft when released.

[0013] A spiral spring energy storage device includes an energy storage shaft and a spiral spring connected thereto. When the energy storage shaft rotates in the energy storage direction, the spiral spring is tightened to store mechanical energy.

[0014] A one-way locking mechanism, engaged with the energy storage shaft, is used to allow the energy storage shaft to rotate in the energy storage direction and prevent it from rotating in the release direction;

[0015] A trigger release mechanism is used to sense the energy storage state of the spiral spring and, when the stored energy reaches a preset threshold, release the lock of the one-way locking mechanism, so that the spiral spring releases energy to drive the energy storage shaft to rotate.

[0016] The output speed-increasing mechanism includes a third gear coaxially fixed on the energy storage shaft and a fourth gear meshing with the third gear. The third gear and the fourth gear form a speed-increasing transmission pair.

[0017] The generator includes a permanent magnet rotor coaxially fixed with the fourth gear and a stator coil fixed relative to the base.

[0018] Preferably, the first unidirectional transmission device is a bidirectional overrunning clutch or a reversing ratchet mechanism, which converts the forward and reverse bidirectional rotation of the second rotating shaft into unidirectional rotation in the same direction of the intermediate shaft.

[0019] Preferably, one end of the spiral spring is fixed to the energy storage shaft, and the other end is fixed relative to the housing of the spiral spring energy storage device.

[0020] Furthermore, the trigger release mechanism is linked to the spiral spring energy storage device and is configured to directly sense the change in the outer diameter of the spiral spring during the energy storage and release process, so as to trigger the release of the one-way locking mechanism when the stored energy reaches a preset threshold.

[0021] Preferably, the trigger release mechanism includes a movable frame having a first arm and a second arm;

[0022] The first arm extends into the housing of the spiral spring energy storage device and abuts against the outer side of the outer spring coil of the spiral spring to directly sense changes in its outer diameter;

[0023] The second arm is placed outside the housing of the spiral spring energy storage device, and a return spring is provided between the second arm and the base. The return spring applies a force to the moving frame in the direction of the center of the spiral spring.

[0024] The housing of the spiral spring energy storage device is provided with a guide groove for the sliding of the movable frame;

[0025] In the initial state, the spiral spring is in a released state, with its outer diameter pushing against the first arm, keeping the moving frame in a first position away from the center of the spiral spring energy storage device. At this time, the one-way locking mechanism is in a locked state. During the energy storage process, as the spiral spring is tightened and its outer diameter gradually decreases, the moving frame moves towards the center of the spiral spring under the drive of the return spring. When the stored energy reaches a preset threshold, the moving frame moves to a second position, triggering the release of the one-way locking mechanism, causing the spiral spring to begin releasing energy. During the energy release process of the spiral spring, its outer diameter gradually expands, pushing outward against the first arm, overcoming the force of the return spring, and driving the moving frame to return from the second position to the first position, at which point the one-way locking mechanism is locked again.

[0026] Furthermore, the one-way locking mechanism includes a ratchet fixedly connected to the energy storage shaft and a pawl rotatably connected to the bottom of the housing of the spiral spring energy storage device, and the moving frame is connected to the pawl through a linkage component;

[0027] In the first position, the pawl remains engaged with the ratchet to achieve locking; when the moving frame moves to the second position, the pawl is disengaged from the ratchet by the linkage component to release the lock; when the moving frame returns to the first position, the pawl resets and re-engages with the ratchet to achieve locking.

[0028] Preferably, the linkage component includes: a pin; a first strip groove formed on the lower end face of the movable frame; a second strip groove formed on the upper end face of the pawl; the two ends of the pin are respectively accommodated in the first strip groove and the second strip groove, and can slide in therein;

[0029] During the movement of the moving frame from the first position to the second position, before reaching the release position corresponding to the preset threshold, the pin slides relative to the first strip groove, and the pawl remains stationary; when the moving frame reaches the release position, the end of the first strip groove abuts against the pin, and the pin pushes the pawl to rotate to disengage from the ratchet, and during the pushing process, it slides relative to the second strip groove.

[0030] During the process of the moving frame returning from the second position to the first position, when the other end of the first strip groove abuts the pin, the pin pushes the pawl to rotate in the opposite direction to reset and re-engage with the ratchet.

[0031] Preferably, the generator is an axial flux motor, including a stator coil formed on a printed circuit board, the printed circuit board being fixed relative to the base; and a disc-shaped permanent magnet rotor coaxially fixed with the fourth gear, the end face of which is parallel to and opposite to the disc surface of the printed circuit board.

[0032] Furthermore, the power generation device includes two sets of energy conversion branches, each set of energy conversion branches including an input transmission mechanism, a first one-way transmission device, an intermediate shaft, a second one-way transmission device, a spiral spring energy storage device, a one-way locking mechanism, a trigger release mechanism, an output speed-up mechanism, and a generator;

[0033] The two sets of energy conversion branches share the same pendulum. The first gear is coaxially fixed on the first rotating shaft. The second gears of the two sets of energy conversion branches are respectively arranged on opposite sides of the first gear and mesh with the first gear.

[0034] The first unidirectional actuators in the two sets of energy conversion branches are allowed to rotate in opposite directions, so that when the pendulum swings in different directions, it drives one of the sets of energy conversion branches to store energy.

[0035] Furthermore, the input transmission mechanism includes two second gears, which are respectively arranged on opposite sides of the first gear and both mesh with the first gear;

[0036] One of the second gears is coaxially connected to the intermediate transmission gear via a first one-way bearing, and the other second gear is coaxially connected to the reversing gear via a second one-way bearing. The reversing gear directly meshes with the intermediate transmission gear, or the reversing gear is connected to the intermediate transmission gear via two idler gears.

[0037] The first one-way bearing and the second one-way bearing allow rotation in opposite directions, so that both second gears can only work in one direction and rotate in the opposite direction, and when the pendulum swings in either direction, it drives the intermediate transmission gear to rotate in the same direction.

[0038] The intermediate transmission gear is connected to the input end of the first one-way transmission device.

[0039] Furthermore, the entire device is encapsulated as a wearable or mountable module for wearing on animals or humans, or fixed to moving objects, to capture the kinetic energy of oscillations generated during movement.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] (1) This invention uses a trigger release mechanism linked with a spiral spring energy storage device. By utilizing the change in the outer diameter of the spiral spring during energy storage and release, it achieves automatic sensing of the energy storage state entirely mechanically. When energy storage is complete, it automatically triggers the release of the one-way locking mechanism to release energy and drive the generator to generate electricity. After the release is complete, it automatically resets and relocks. The device does not require electronic sensors, control circuits, or battery power for energy storage state detection and energy storage / release mode switching. It has a simple structure, zero standby power consumption, and extremely high reliability and maintenance-free operation in unattended scenarios such as animal wear.

[0042] (2) In this invention, the bidirectional swing of the pendulum is converted into unidirectional rotation of the intermediate shaft through a first unidirectional transmission device, and then the torque is transmitted to the energy storage shaft through a second unidirectional transmission device. During release, the energy storage shaft rotates in the opposite direction under the drive of the spiral spring, and the second unidirectional transmission device automatically enters the overrunning state, disconnecting the energy storage shaft from the intermediate shaft transmission chain. The continuous swing of the pendulum will not interfere with the release of the energy storage shaft. The two paths of energy storage and release are mechanically decoupled at the second unidirectional transmission device, eliminating the need for precise synchronous control and significantly improving operational reliability.

[0043] (3) This invention uses a one-way locking mechanism to lock the energy storage shaft during the energy storage stage, preventing energy backflow and allowing the spiral spring to steadily accumulate elastic potential energy. When the energy storage reaches a preset threshold, the release mechanism is triggered to release the lock, and the spiral spring releases energy in a concentrated manner. This energy is then used to drive the generator to rotate at high speed through the speed-increasing mechanism, outputting relatively stable electrical energy. This effectively solves the problem of large voltage fluctuations and low efficiency when directly using low-frequency irregular oscillations for power generation.

[0044] (4) This invention provides a scheme for alternating operation of two sets of energy conversion branches, as well as a scheme for centralized power generation through dual-path convergence, both of which can achieve efficient utilization of the pendulum's bidirectional swing. At the same time, the compact design of the axial flux motor further reduces the size of the device. The above-mentioned multiple schemes can be flexibly selected according to power requirements, space constraints, and cost requirements, and are suitable for supplementary charging scenarios of various low-power electronic devices such as pet tracking, livestock monitoring, and wearable devices.

[0045] (5) The present invention eliminates the complex controllable clutch and the precision synchronous linkage structure, and replaces them with standard parts such as the first one-way transmission and the second one-way transmission. The overall structure is significantly simplified, the number of parts is reduced, and the assembly precision requirements are lowered, which is conducive to the miniaturization and mass production of the device. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0047] Figure 2 This is a schematic diagram of the disassembled state of Embodiment 1 of the present invention.

[0048] Figure 3 This is a schematic diagram of the cooperation between the spiral spring energy storage device and the trigger release mechanism in Embodiment 1 of the present invention.

[0049] Figure 4 This is a schematic diagram of the cooperation between the trigger release mechanism and the one-way locking mechanism in Embodiment 1 of the present invention.

[0050] Figure 5 This is a schematic diagram of the transmission components in Embodiment 2 of the present invention.

[0051] In the diagram: 1. Base; 2. Pendulum; 3. Input transmission mechanism; 31. First gear; 32. Second gear; 4. First one-way transmission; 5. Intermediate shaft; 6. Second one-way transmission; 7. Scroll spring energy storage device; 71. Energy storage shaft; 72. Scroll spring; 8. Trigger release mechanism; 81. Moving frame; 81a. First arm; 81b. Second arm; 82. Return spring; 83. First strip groove; 9. One-way locking mechanism; 91. Ratchet; 92. Pawl; 10. Output speed-up mechanism; 11. Generator; 12. Energy conversion branch; 33. Intermediate transmission gear; 34. Reversing gear; 35. Idler gear. Detailed Implementation

[0052] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0053] Example 1

[0054] like Figures 1 to 4 As shown, this embodiment provides a pendulum-driven mechanical energy storage and power generation device, which includes a base 1, a pendulum 2, an input transmission mechanism 3, a first one-way transmission 4, an intermediate shaft 5, a second one-way transmission 6, a spiral spring energy storage device 7, a trigger release mechanism 8, a one-way locking mechanism 9, an output speed-up mechanism 10, and a generator 11.

[0055] The pendulum 2 is oscillatingly connected to the base 1 via a first rotating shaft. The input transmission mechanism 3 includes a first gear 31 coaxially fixed on the first rotating shaft and a second gear 32 meshing with the first gear 31. The second gear 32 is rotatably supported on the base 1 via a second rotating shaft. When the pendulum 2 oscillates due to external motion, the oscillation drives the first gear 31 to rotate via the first rotating shaft, which in turn drives the second gear 32 to rotate.

[0056] The input end of the first one-way drive 4 is connected to the second rotating shaft for converting the bidirectional rotation of the second rotating shaft into a one-way intermittent rotation output. The first one-way drive 4 can be a bidirectional overrunning clutch or a reversing ratchet mechanism, which converts both forward and reverse bidirectional rotation of the second rotating shaft into one-way rotation in the same direction of the intermediate shaft 5.

[0057] The input end of the second one-way actuator 6 is drivenly connected to the intermediate shaft 5, and its output end is drivenly connected to the energy storage shaft 71. The second one-way actuator 6 is configured to allow torque to be transmitted from the intermediate shaft 5 to the energy storage shaft 71, and to allow the energy storage shaft 71 to rotate beyond the intermediate shaft 5 upon release. The second one-way actuator 6 may be a one-way bearing or an overrunning clutch.

[0058] The spiral spring energy storage device 7 includes an energy storage shaft 71 and a spiral spring 72 connected thereto. One end of the spiral spring 72 is fixed to the energy storage shaft 71, and the other end is fixed relative to the housing of the spiral spring energy storage device 7. When the energy storage shaft 71 rotates in the energy storage direction, the spiral spring 72 is tightened to store mechanical energy.

[0059] A one-way locking mechanism 9 engages with the energy storage shaft 71 to allow the energy storage shaft 71 to rotate in the energy storage direction and prevent it from rotating in the release direction. Figure 4 As shown, the one-way locking mechanism 9 includes a ratchet 91 fixedly connected to the energy storage shaft 71, and a pawl 92 rotatably disposed at the bottom of the housing of the spiral spring energy storage device 7.

[0060] The trigger release mechanism 8 is used to sense the energy storage state of the spiral spring 72, and when the stored energy reaches a preset threshold, it releases the lock of the one-way locking mechanism 9, so that the spiral spring 72 releases energy to drive the energy storage shaft 71 to rotate.

[0061] like Figure 3As shown, the trigger release mechanism 8 includes a movable frame 81, which has a first arm 81a and a second arm 81b. The first arm 81a extends into the housing of the spiral spring accumulator 7 and abuts against the outer side of the outer spring coil of the spiral spring 72 to directly sense changes in its outer diameter. The second arm 81b is positioned outside the housing of the spiral spring accumulator 7, and a return spring 82 is provided between the second arm 81b and the base 1. The return spring 82 applies a force to the movable frame 81 in the direction of the center of the spiral spring 72. A guide groove is provided on the housing of the spiral spring accumulator 7 for the movable frame 81 to slide.

[0062] The movable frame 81 is connected to the pawl 92 via a linkage component. The linkage component includes a pin, a first strip groove 83 formed on the lower end face of the movable frame 81, and a second strip groove formed on the upper end face of the pawl 92. The two ends of the pin are respectively accommodated in the first strip groove 83 and the second strip groove, and can slide within them.

[0063] The working process of triggering release mechanism 8 is as follows:

[0064] In the initial state, the spiral spring 72 is in the released state, and its outer diameter pushes against the first arm 81a, keeping the moving frame 81 in a first position away from the center of the spiral spring energy storage device 7. At this time, the pawl 92 is engaged with the ratchet 91, the one-way locking mechanism 9 is in the locked state, and the energy storage shaft 71 can only rotate in the energy storage direction.

[0065] During the energy storage process, the reciprocating oscillation of the pendulum 2 is converted into unidirectional intermittent rotation of the intermediate shaft 5 via the input transmission mechanism 3 and the first one-way transmission 4, and transmitted to the energy storage shaft 71 via the second one-way transmission 6. The spiral spring 72 is gradually tightened, and its outer diameter gradually decreases. The moving frame 81 moves towards the center of the spiral spring 72 under the drive of the return spring 82. Before reaching the release position corresponding to the preset threshold, the pin slides relative to the first strip groove 83, and the pawl 92 remains stationary.

[0066] When the stored energy reaches a preset threshold, the moving frame 81 moves to the second position, and the end of the first strip groove 83 abuts against the pin. The pin pushes the pawl 92 to rotate and disengage from the ratchet 91. During the pushing process, relative sliding occurs within the second strip groove, and the one-way locking mechanism 9 is unlocked. The spiral spring 72 begins to release energy, driving the energy storage shaft 71 to rotate. At this time, the rotational speed of the energy storage shaft 71 is higher than that of the intermediate shaft 5, and the second one-way transmission 6 automatically enters the overrunning state. The release of the energy storage shaft 71 is not interfered with by the intermediate shaft 5.

[0067] During the energy release process of the spiral spring 72, its outer diameter gradually expands, pushing outward against the first arm 81a, overcoming the force of the return spring 82, and driving the moving frame 81 to return from the second position to the first position. When the other end of the first strip groove 83 abuts the pin, the pin pushes the pawl 92 to rotate in the opposite direction to reset and re-engage with the ratchet 91, the one-way locking mechanism 9 is locked again, and the device enters the next energy storage-release cycle.

[0068] The output speed-increasing mechanism 10 includes a third gear coaxially fixed on the energy storage shaft 71 and a fourth gear meshing with the third gear. The number of teeth of the third gear is greater than the number of teeth of the fourth gear. The two constitute a speed-increasing transmission pair, which further increases the rotational speed of the energy storage shaft 71 when the spiral spring 72 is released.

[0069] The generator 11 includes a permanent magnet rotor coaxially fixed to the fourth gear and a stator coil fixed relative to the base 1. The generator 11 is an axial flux motor; the stator coil is formed on a printed circuit board, which is fixed relative to the base 1; the permanent magnet rotor has a disc-shaped structure, with its end face parallel to the disc surface of the printed circuit board. This structure effectively reduces the axial dimension of the device, facilitating miniaturization and wearable packaging.

[0070] The electrical energy output by generator 11 can be processed by conventional power management circuits such as rectifier circuits and voltage regulator circuits to charge the built-in rechargeable battery of the device, thereby providing supplemental power for low-power electronic devices such as locators and sensors worn on animals. The rectifier circuit, voltage regulator circuit, and charging management circuit are all conventional electronic components in the field, and their specific models and circuit designs can be selected according to actual power requirements.

[0071] In this embodiment, the power generation device includes two sets of energy conversion branches 12. Each set of energy conversion branches 12 includes an input transmission mechanism 3, a first one-way transmission 4, an intermediate shaft 5, a second one-way transmission 6, a spiral spring energy storage device 7, a trigger release mechanism 8, a one-way locking mechanism 9, an output speed-up mechanism 10, and a generator 11. The two sets of energy conversion branches 12 share the same pendulum 2. The first gear 31 is coaxially fixed on the first rotating shaft. The second gears 32 of the two sets of energy conversion branches 12 are respectively arranged on opposite sides of the first gear 31 and are meshed with the first gear 31. The first one-way transmissions 4 in the two sets of energy conversion branches 12 allow opposite rotation directions, so that when the pendulum 2 swings in different directions, it drives one set of energy conversion branches 12 to store energy and generate electricity, thereby making full use of the bidirectional swing of the pendulum 2 and improving the energy capture efficiency.

[0072] The entire device can be packaged as a wearable or mountable module for wearing on animals or humans, or fixed to moving objects, to capture the kinetic energy generated during movement and provide supplemental charging for low-power electronic devices.

[0073] Example 2

[0074] like Figure 5 As shown, the main difference between this embodiment and Embodiment 1 lies in the configuration of the input transmission mechanism and the transmission path. In this embodiment, the input transmission mechanism 3 includes two second gears 32, which are respectively arranged on opposite sides of the first gear 31 and both mesh with the first gear 31.

[0075] One of the second gears 32 is coaxially connected to the intermediate transmission gear 33 via a first one-way bearing, and the other second gear 32 is coaxially connected to the reversing gear 34 via a second one-way bearing. The reversing gear 34 directly meshes with the intermediate transmission gear 33, or the reversing gear 34 is connected to the intermediate transmission gear 33 via two idler gears 35. The first and second one-way bearings allow rotation in opposite directions, ensuring that both second gears 32 can only perform work in one direction and rotate freely in the opposite direction. Thus, when the pendulum 2 swings in either direction, it drives the intermediate transmission gear 33 to rotate in the same direction. The intermediate transmission gear 33 is connected to the input end of the first one-way actuator 4.

[0076] This embodiment combines the bidirectional swing of the pendulum 2 into the unidirectional rotation of the intermediate transmission gear 33, requiring only one set of subsequent energy storage, triggering and power generation mechanisms. While ensuring bidirectional energy capture, it reduces the number of parts, making the structure more compact and suitable for application scenarios with stricter requirements on size and cost.

[0077] The remaining structure, working process, and power generation output of this embodiment are the same as those of Embodiment 1, and will not be repeated here. The above content is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not depart from the inventive concept of the present invention, and all such modifications or additions should fall within the protection scope of the present invention.

Claims

1. A pendulum-driven mechanical energy storage and power generation device, characterized in that, include: Base (1); The pendulum (2) is oscillatingly connected to the base (1) via a first pivot. The input transmission mechanism (3) includes a first gear (31) coaxially fixed on the first rotating shaft and a second gear (32) meshing with the first gear (31). The second gear (32) is rotatably supported on the base (1) via the second rotating shaft. The first unidirectional drive (4) has its input end connected to the second rotating shaft for converting the bidirectional rotation of the second rotating shaft into unidirectional intermittent rotation output; The intermediate shaft (5) is connected to the output end of the first one-way drive; The second one-way actuator (6) has its input end connected to the intermediate shaft (5) and its output end connected to an energy storage shaft (71). The second one-way actuator (6) is configured to allow torque to be transmitted from the intermediate shaft (5) to the energy storage shaft (71) and to allow the energy storage shaft (71) to rotate beyond the intermediate shaft (5) when released. The spiral spring energy storage device (7) includes the energy storage shaft (71) and the spiral spring (72) connected thereto. When the energy storage shaft (71) rotates in the energy storage direction, the spiral spring (72) is tightened to store mechanical energy. A one-way locking mechanism (9) engages with the energy storage shaft (71) to allow the energy storage shaft (71) to rotate in the energy storage direction and prevent it from rotating in the release direction; Trigger release mechanism (8) is used to sense the energy storage state of the spiral spring (72) and release the lock of the one-way locking mechanism when the stored energy reaches a preset threshold, so that the spiral spring (72) releases energy to drive the energy storage shaft (71) to rotate. The output speed-increasing mechanism (10) includes a third gear coaxially fixed on the energy storage shaft (71) and a fourth gear meshing with the third gear. The third gear and the fourth gear form a speed-increasing transmission pair. The generator (11) includes a permanent magnet rotor that is coaxially fixed with the fourth gear and a stator coil that is fixed relative to the base (1).

2. The pendulum-driven mechanical energy storage and power generation device according to claim 1, characterized in that, The first one-way transmission (4) is a two-way overrunning clutch or a reversing ratchet mechanism, which converts the forward and reverse bidirectional rotation of the second rotating shaft into a one-way rotation in the same direction of the intermediate shaft (5).

3. The pendulum-driven mechanical energy storage and power generation device according to claim 1, characterized in that, One end of the spiral spring (72) is fixed to the energy storage shaft (71), and the other end is fixed relative to the housing of the spiral spring energy storage device (7).

4. The pendulum-driven mechanical energy storage and power generation device according to claim 1, characterized in that, The trigger release mechanism (8) is linked to the spiral spring energy storage device (7) and is configured to directly sense the change in the outer diameter of the spiral spring (72) during the energy storage and release process, so as to trigger the release of the one-way locking mechanism when the stored energy reaches a preset threshold.

5. A pendulum-driven mechanical energy storage and power generation device according to claim 4, characterized in that, The trigger release mechanism (8) includes a movable frame (81) having a first arm (81a) and a second arm (81b). The first arm (81a) extends into the housing of the spiral spring energy storage device (7) and abuts against the outer side of the outer spring coil of the spiral spring (72) to directly sense the change in its outer diameter. The second arm (81b) is placed outside the housing of the spiral spring energy storage device (7), and a return spring (82) is provided between the second arm (81b) and the base (1). The return spring (82) applies a force to the moving frame (81) in the direction of the center of the spiral spring (72). The housing of the spiral spring energy storage device (7) is provided with a guide groove for the sliding of the movable frame (81). In the initial state, the spiral spring (72) is in the released state, and its outer diameter pushes against the first arm (81a), keeping the moving frame (81) in a first position away from the center of the spiral spring energy storage device (7). At this time, the one-way locking mechanism is in the locked state. During the energy storage process, as the spiral spring (72) is tightened and its outer diameter gradually shrinks, the moving frame (81) moves towards the center of the spiral spring (72) under the drive of the return spring (82). When the stored energy reaches a preset threshold, the moving frame (81) moves to the second position, triggering the release of the one-way locking mechanism (9) and causing the spiral spring (72) to start releasing energy. During the energy release process of the spiral spring (72), its outer diameter gradually expands, pushing against the first arm (81a) outward, overcoming the force of the return spring (82), and driving the moving frame (81) to return from the second position to the first position. The one-way locking mechanism is then locked again.

6. The pendulum-driven mechanical energy storage and power generation device according to claim 5, characterized in that, The one-way locking mechanism (9) includes a ratchet (91) fixedly connected to the energy storage shaft (71) and a pawl (92) rotatably connected to the bottom of the housing of the spiral spring energy storage device (7). The moving frame (81) is connected to the pawl (92) through a linkage component. In the first position, the pawl (92) remains engaged with the ratchet (91) to achieve locking; when the moving frame moves to the second position, the pawl (92) is disengaged from the ratchet (91) by the linkage component to release the lock; when the moving frame returns to the first position, the pawl (92) resets and re-engages with the ratchet (91) to achieve locking.

7. A pendulum-driven mechanical energy storage and power generation device according to claim 6, characterized in that, The linkage component includes: Pin; The first strip groove (83) is formed on the lower end face of the movable frame (81); The second groove is formed on the upper end face of the pawl (92); The two ends of the pin are respectively accommodated in the first strip groove (83) and the second strip groove, and can slide in therein; During the movement of the moving frame (81) from the first position to the second position, before reaching the release position corresponding to the preset threshold, the pin slides relative to the first strip groove (83), and the pawl (92) remains stationary; when the moving frame (81) reaches the release position, the end of the first strip groove (83) abuts against the pin, and the pin pushes the pawl (92) to rotate to disengage from the ratchet (91), and during the pushing process, it slides relative to the second strip groove; During the process of the moving frame (81) returning from the second position to the first position, when the other end of the first strip groove (83) abuts against the pin, the pin pushes the pawl (92) to rotate in the opposite direction to reset and re-engage with the ratchet (91).

8. The pendulum-driven mechanical energy storage and power generation device according to claim 1, characterized in that, The generator (11) is an axial flux motor, including a stator coil formed on a printed circuit board, the printed circuit board being fixed relative to the base (1); and a disc-shaped permanent magnet rotor coaxially fixed with the fourth gear, the end face of which is parallel to the disc surface of the printed circuit board.

9. A pendulum-driven mechanical energy storage and power generation device according to claim 1, characterized in that, The power generation device includes two sets of energy conversion branches. Each set of energy conversion branches includes an input transmission mechanism (3), a first one-way transmission device (4), an intermediate shaft (5), a second one-way transmission device (6), a spiral spring energy storage device (7), a one-way locking mechanism (9), a trigger release mechanism (8), an output speed-up mechanism (10), and a generator (11). The two sets of energy conversion branches share the same pendulum (2). The first gear (31) is coaxially fixed on the first rotating shaft. The second gears (32) of the two sets of energy conversion branches are respectively arranged on opposite sides of the first gear (31) and both mesh with the first gear (31). The first unidirectional actuator (4) in the two sets of energy conversion branches are allowed to rotate in opposite directions, so that when the pendulum (2) swings in different directions, it drives one of the sets of energy conversion branches to store energy.

10. A pendulum-driven mechanical energy storage and power generation device according to claim 1, characterized in that, The input transmission mechanism (3) includes two second gears (32), which are respectively arranged on opposite sides of the first gear (31) and both mesh with the first gear (31); One of the second gears (32) is coaxially connected to the intermediate transmission gear (33) through a first one-way bearing, and the other second gear (32) is coaxially connected to the reversing gear (34) through a second one-way bearing. The reversing gear (34) directly meshes with the intermediate transmission gear (33), or the reversing gear (34) is connected to the intermediate transmission gear (33) through two idler gears (35). The first one-way bearing and the second one-way bearing allow rotation directions opposite to each other, so that both second gears (32) can only do work in one direction and rotate in the opposite direction, and when the pendulum (2) swings in any direction, it drives the intermediate transmission gear (33) to rotate in the same direction; The intermediate transmission gear (33) is connected to the input end of the first one-way transmission device (4).

11. A pendulum-driven mechanical energy storage and power generation device according to any one of claims 1 to 10, wherein the entire device is encapsulated as a wearable or mountable module for wearing on an animal or human body, or fixed to a moving object, to capture the oscillating kinetic energy generated during movement.

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