Energy-saving flashlight with multiple power generation modes

Abstract

The invention provides an energy-saving flashlight with multiple power generation modes, which belongs to the technical field of flashlights and comprises a flashlight main body, a speed increasing mechanism, a clamping mechanism, a power generation mechanism and a switching mechanism. Wherein the flashlight main body is internally provided with a lighting assembly and has a basic lighting function; the speed increasing mechanism is arranged on the flashlight body, the output end of the speed increasing mechanism is electrically connected with an energy storage battery arranged in the flashlight body, and the speed increasing mechanism can convert low-speed rotation generated by external force driving into high-speed rotation so as to improve the power generation efficiency; the clamping mechanism is arranged on the inner side wall of the flashlight body, the speed increasing mechanism is clamped and fixed to the clamping mechanism, and the clamping mechanism can achieve limiting and rapid disassembly and assembly of the speed increasing mechanism; and the input end of the power generation mechanism is fixedly connected with the input shaft of the speed increasing mechanism, and the power generation mechanism comprises four rotating arm assemblies. The device integrates two modes of gyroscope stirring power generation and ball throwing power generation, power generation can be maintained through stirring or throwing, and continuous high-frequency power generation is not needed.

Description

Technical Field

[0001] This application relates to the field of flashlight technology, and more specifically, to an energy-saving flashlight with multiple power generation modes. Background Technology

[0002] In special scenarios such as outdoor exploration, emergency rescue, and field operations, lighting is a core requirement for ensuring the safety of personnel and improving outdoor survival capabilities. As the core emergency lighting equipment in such scenarios, the battery life of flashlights directly determines the lighting duration, while multi-functional adaptability affects the efficiency of use in different complex outdoor environments. Both of these factors together constitute key factors affecting outdoor survival safety. Therefore, self-generating flashlights with long-lasting and stable power supply capabilities are an important research direction in this field.

[0003] Existing self-generating flashlights have developed various power generation modes to eliminate reliance on conventional batteries and meet emergency power needs. Among them, traditional self-generating flashlights mostly use a single mechanical mechanism for power generation, such as manual crank type or ratchet squeeze type. Although this type of mode can provide emergency power for a short time with low power and has basic reliability in emergency situations, it is a common method for outdoor emergencies. However, it still has significant drawbacks. For example, continuous high-frequency manual operation can easily cause physical fatigue after a long period of operation, making it difficult to maintain a long-term and stable continuous power output. Some products have attempted to integrate multi-mode power generation solutions to improve power supply capacity, adding a solar power generation mode to the mechanical power generation. However, due to the limitations of product miniaturization design, the area that can be placed on the solar panel is too small, resulting in poor actual power generation effect and inability to effectively supplement the power supply.

[0004] Therefore, there is an urgent need for an energy-saving flashlight with multiple power generation modes. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this application provides an energy-saving flashlight with multiple power generation modes, integrating two modes: gyroscope-driven power generation and ball-swinging power generation. Power generation can be maintained simply by flicking or swinging the ball, without the need for continuous high-frequency force.

[0007] This application provides an energy-saving flashlight with multiple power generation modes, comprising a flashlight body, a speed-increasing mechanism, a locking mechanism, a power generation mechanism, and a switching mechanism. The flashlight body has a built-in lighting component and provides basic lighting functionality. The speed-increasing mechanism is disposed on the flashlight body, and its output end is electrically connected to the energy storage battery built into the flashlight body. The speed-increasing mechanism can convert low-speed rotation generated by external force into high-speed rotation, thereby improving power generation efficiency. The locking mechanism is disposed on the inner side wall of the flashlight body, and the speed-increasing mechanism is locked and fixed to the locking mechanism, which enables the speed-increasing mechanism to be limited and quickly disassembled. The power generation mechanism has its input end fixedly connected to the input shaft of the speed-increasing mechanism, and the power generation mechanism includes four rotating... The boom assembly has a detachable counterweight ball at the end of each boom assembly. Rotating any boom assembly will drive the entire power generation mechanism to rotate, which in turn drives the speed-increasing mechanism to operate synchronously, realizing the conversion of mechanical energy into electrical energy. The counterweight ball can extend the rotation time of the boom assembly by using its own gravitational torque. The switching mechanism is detachably mounted on the flashlight body. After assembly, it can be connected to any boom assembly. It can extend the overall length of the counterweight ball and the boom assembly, thereby changing the rotational torque of the boom assembly and switching to the ball-swinging power generation mode.

[0008] In some embodiments, the flashlight body includes: a housing, with the snap-fit ​​mechanism disposed on the inner sidewall of the housing; a lampshade disposed at one end of the housing; a lamp holder disposed on the inner side of the lampshade; a protective sheet disposed on the lampshade and covering the outer side of the lamp holder; a battery built into the housing and employing an energy storage battery structure; a circuit board disposed inside the housing and electrically connected to the lamp holder and the battery respectively; and a switch disposed on the outer side of the housing and electrically connected to the circuit board.

[0009] In some embodiments, the speed-increasing mechanism includes: a mounting bracket, snapped and fixed to the snap-fit ​​mechanism; a secondary shaft, rotatably mounted on one side of the mounting bracket; a bearing, disposed on the other side of the mounting bracket; a main shaft, passing through the bearing; a mounting base, disposed on the top of the housing, with one end of the main shaft extending to the outside of the mounting base and connected to the power generation mechanism; a first speed-increasing gear set, the input end of which is drivenly connected to the output end of the main shaft, and the output end of which is drivenly connected to the input end of the secondary shaft; a second speed-increasing gear set, the input end of which is drivenly connected to the output end of the secondary shaft; and a generator, disposed on the snap-fit ​​mechanism, the input end of which is connected to the output end of the second speed-increasing gear set.

[0010] In some embodiments, both the first speed-increasing gear set and the second speed-increasing gear include a driving gear and a driven gear that mesh with each other, wherein the number of teeth of the driving gear is less than the number of teeth of the driven gear.

[0011] In some embodiments, the locking mechanism includes: two first locking blocks, two second locking blocks, and two third locking blocks, all symmetrically fixed to the inner sidewall of the housing; and a plurality of locking posts, respectively disposed on both sides of the mounting bracket and both sides of the generator, and each locking post engaging with a corresponding locking block.

[0012] In some embodiments, the power generation mechanism includes: a mounting block, which is fixedly and driveably connected to one end of the main shaft extending to the outside of the mounting base; and four rotating arm assemblies, which are evenly distributed in a circular array along the outer periphery of the mounting block.

[0013] In some embodiments, each of the rotating arm assemblies includes: a limiting arm, fixedly disposed on the outer periphery of the mounting block; a limiting plate, disposed on the side of the limiting arm away from the mounting block; two sets of limiting grooves, symmetrically opened at the head and end ends of the inner walls on both sides of the limiting arm; an extension arm, slidably disposed on the limiting arm; two limiting plates, fixedly disposed on the end of the extension arm near the limiting arm, corresponding to and adapted to the two sets of limiting grooves; a rope storage cavity, opened inside the extension arm; a counterweight ball, disposed on the end of the extension arm away from the limiting plates; and a first stud, disposed on the counterweight ball, with a threaded groove adapted to the first stud opened on the end of the extension arm away from the limiting plates.

[0014] In some embodiments, the switching mechanism includes: a pull rope, built into the inside of the rope storage cavity, one end of which is fixedly connected to the inner wall of the rope storage cavity, and the other end of which is fixedly connected to the counterweight ball; a rescue whistle, sleeved on the pull rope, the rescue whistle having an opening on its inner side for the pull rope to enter, and the rescue whistle having a tapered structure; a tail fin, fixedly disposed on the side of the rescue whistle near the end of its tapered structure; a screw sleeve, disposed on the inner side of the rescue whistle and adapted to the first stud; and a second stud, fixedly disposed on the outer side of the outer shell and adapted to the screw sleeve.

[0015] In some embodiments, the rescue whistle has two independent sound channels on its inner side. Each sound channel includes: an air inlet channel located on the side of the rescue whistle away from the tail fin; a resonance cavity located at the end of the air inlet channel and connected to the air inlet channel; a baffle plate located on the side wall of the resonance cavity; and an air outlet channel located on the side of the resonance cavity away from the air inlet channel and connected to the resonance cavity.

[0016] In some embodiments, the total length of the limiting arm and the extension arm after they are fully extended is greater than the width of the top wall of the housing.

[0017] Compared with the prior art, the technical solution provided in this application includes at least the following technical effects: This application provides an energy-saving flashlight with multiple power generation modes, integrating both gyroscope-based power generation and ball-swinging power generation. Power generation can be maintained simply by flicking or swinging the gyroscope, without requiring continuous high-frequency exertion. Integrating these two modes, the flashlight can flexibly switch between them based on the operator's physical condition and power generation needs. The conventional mode requires no additional components; simply flicking generates power, suitable for rapid recharging in emergencies. The ball-swinging mode increases the rotational torque through a switching mechanism, enabling long-term power generation with just a flick, without the need for continuous high-frequency exertion. This completely solves the problems of fatigue and inability to generate power for extended periods in traditional self-generating flashlights. Simultaneously, the counterweight ball utilizes its own gravity to extend the rotation time of the rotating arm assembly, further improving the continuity of power generation.

[0018] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the overall structural schematic diagrams of a flashlight according to some embodiments of this application; Figure 2 This is a second schematic diagram of the overall structure of a flashlight according to some embodiments of this application; Figure 3 This is a schematic diagram of the structure of the flashlight body and the locking mechanism according to some embodiments of this application; Figure 4 Exploded views of the lamp holder structure of some embodiments of this application; Figure 5 Exploded views of the flashlight body structure according to some embodiments of this application; Figure 6 This is a schematic diagram of the structure of the housing and speed-increasing mechanism in some embodiments of this application; Figure 7 Exploded view of the speed-up mechanism in some embodiments of this application; Figure 8 This is a top view of the power generation mechanism according to some embodiments of this application; Figure 9 Exploded views of the power generation mechanism of some embodiments of this application; Figure 10 This is a schematic diagram of the internal cross-sectional structure of the extension arm in some embodiments of this application; Figure 11 This is a schematic diagram of the switching mechanism in some embodiments of this application; Figure 12 This is a schematic diagram of the external structure of a rescue sentry according to some embodiments of this application; Figure 13 This is a schematic diagram of the internal cross-sectional structure of a rescue siren according to some embodiments of this application; Figure 14 This is a schematic diagram of the casing and rescue whistle of some embodiments of this application.

[0020] in, Figures 1 to 14 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100. Flashlight body; 110. Outer shell; 120. Lampshade; 130. Lamp holder; 140. Protective plate; 150. Battery; 160. Circuit board; 170. Switch; 200. Speed-increasing mechanism; 210. Mounting bracket; 220. Sub-shaft; 230. Bearing; 240. Main shaft; 250. Mounting base; 260. First speed-increasing gear set; 270. Second speed-increasing gear set; 280. Generator; 300, Snap-on mechanism; 310, First snap-on block; 320, Second snap-on block; 330, Third snap-on block; 340, Snap-on post; 400. Generating mechanism; 410. Mounting block; 420. Limiting arm; 421. Limiting plate; 422. Limiting groove; 430. Extension arm; 431. Limiting piece; 432. Rope storage cavity; 440. Counterweight ball; 441. First stud; 500. Switching mechanism; 510. Pull rope; 520. Rescue whistle; 521. Air intake channel; 522. Resonance cavity; 523. Baffle plate; 524. Air outlet channel; 530. Tail fin; 540. Screw sleeve; 550. Second stud. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0023] The following reference Figures 1 to 14 This application describes an energy-saving flashlight with multiple power generation modes provided according to some embodiments.

[0024] like Figures 1 to 3As shown, the energy-saving flashlight with multiple power generation modes provided according to some embodiments of this application includes a flashlight body 100, a speed-increasing mechanism 200, a locking mechanism 300, a power generation mechanism 400, and a switching mechanism 500. The flashlight body 100 has a built-in lighting component and provides basic lighting functionality. The speed-increasing mechanism 200 is disposed on the flashlight body 100, and its output end is electrically connected to the energy storage battery built into the flashlight body 100. The speed-increasing mechanism 200 can convert low-speed rotation generated by external force into high-speed rotation, thereby improving power generation efficiency. The locking mechanism 300 is disposed on the inner sidewall of the flashlight body 100, and the speed-increasing mechanism 200 is locked and fixed to the locking mechanism 300. The locking mechanism 300 can limit and quickly detach the speed-increasing mechanism 200. The power generation mechanism 400 has its input end fixedly connected to the input shaft of the speed-increasing mechanism 200, and generates electricity... The power generation mechanism 400 includes four rotating arm assemblies, each with a detachable counterweight ball 440 at its end. Rotating any rotating arm assembly will drive the entire power generation mechanism 400 to rotate, while the speed-increasing mechanism 200 operates synchronously to convert mechanical energy into electrical energy. The counterweight ball 440 can extend the rotation time of the rotating arm assembly by utilizing its own gravitational torque. The switching mechanism 500 is detachably mounted on the flashlight body 100. After assembly, it can be connected to any rotating arm assembly, which can extend the overall length of the counterweight ball 440 and the rotating arm assembly, thereby changing the rotational torque of the rotating arm assembly and switching to the ball-swinging power generation mode.

[0025] In this embodiment, when the flashlight's battery is low and needs to be replenished by electricity, the operator can directly manually rotate any one of the rotating arm assemblies of the power generation mechanism 400. When the rotating arm assembly is rotated, it causes the entire power generation mechanism 400 to rotate around the input shaft of the speed-increasing mechanism 200. Simultaneously, the counterweight ball 440 at the end of the rotating arm assembly utilizes its own gravitational torque to extend the rotation time of the rotating arm assembly, allowing the power generation mechanism 400 to rotate continuously for a period of time, reducing the frequency of manual rotation. Furthermore, by installing the switching mechanism 500 on one of the rotating arm assemblies, the overall length of the counterweight ball 440 and the rotating arm assembly can be extended, thereby increasing the rotational torque of the rotating arm assembly. The operator can then rotate the power generation mechanism 400 by swinging the flashlight, thus driving the speed-increasing mechanism. The input shaft of mechanism 200 rotates synchronously at low speed. The speed-increasing mechanism 200 converts the low-speed rotation into high-speed rotation through the transmission of the internal gear set, thus amplifying the rotational speed. The speed-increasing mechanism 200 transmits the high-speed rotation to the internal power generation component, completing the conversion of mechanical energy into electrical energy. The converted electrical energy is transmitted through the output end of the speed-increasing mechanism 200 to the energy storage battery built into the flashlight body 100 for storage, powering the lighting components and providing basic lighting. Throughout the entire operation, the locking mechanism 300 always provides a stable limit to the speed-increasing mechanism 200, ensuring that the speed-increasing mechanism 200 and the power generation mechanism 400 operate synchronously, avoiding the impact of component shaking on power generation efficiency. The energy storage battery can continuously store electrical energy, and when power generation is not required, the stored electrical energy can be directly used for lighting, achieving energy saving and extended battery life.

[0026] In some possible embodiments, such as Figures 3 to 5 As shown, the flashlight body 100 includes: a housing 110, with a snap-fit ​​mechanism 300 disposed on the inner side wall of the housing 110; a lampshade 120 disposed at one end of the housing 110; a lamp holder 130 disposed on the inner side of the lampshade 120; a protective sheet 140 disposed on the lampshade 120 and covering the outer side of the lamp holder 130; a battery 150 built into the housing 110 and employing an energy storage battery structure; a circuit board 160 disposed inside the housing 110 and electrically connected to the lamp holder 130 and the battery 150 respectively; and a switch 170 disposed on the outer side of the housing 110 and electrically connected to the circuit board 160.

[0027] In this embodiment, when the flashlight's power generation mechanism 400 is working, it converts mechanical energy into electrical energy. The electrical energy is transmitted to the circuit board 160 inside the flashlight body 100 through the output end of the speed-increasing mechanism 200. The circuit board 160 rectifies and stabilizes the electrical energy before precisely transmitting it to the energy storage battery built into the outer casing 110, completing the energy storage. The energy storage battery continuously stores electrical energy, providing continuous power support for subsequent lighting functions, realizing a closed-loop function of self-generation and self-storage, without relying on an external power source. When the operator needs to use the lighting function, the external power supply is manually activated. The switch 170 on the outside of the housing 110 transmits an opening signal to the internal circuit board 160. After receiving the signal, the circuit board 160 immediately connects the circuit between the battery 150 and the lamp holder 130, controlling the energy storage battery to release electrical energy. The electrical energy is conducted through the circuit board 160 to the lamp holder 130 fixed inside the lamp cover 120. The lamp holder 130 acts as a conductive carrier, further transmitting the electrical energy to the lighting components installed on it. The light from the lighting components penetrates the protective sheet 140 inside the lamp cover 120. The protective sheet 140 can resist external dust, moisture and other interference, protecting the lamp holder 130.

[0028] In some possible embodiments, such as Figure 6 , Figure 7 As shown, the speed-increasing mechanism 200 includes: a mounting bracket 210, which is snapped and fixed to the snap-fit ​​mechanism 300; a secondary shaft 220, which is rotatably mounted on one side of the mounting bracket 210; a bearing 230, which is disposed on the other side of the mounting bracket 210; a main shaft 240, which passes through the bearing 230; a mounting base 250, which is disposed on the top of the housing 110, with one end of the main shaft 240 extending to the outside of the mounting base 250 and connected to the generator mechanism 400; a first speed-increasing gear set 260, whose input end is drivenly connected to the output end of the main shaft 240 and whose output end is drivenly connected to the input end of the secondary shaft 220; a second speed-increasing gear set 270, whose input end is drivenly connected to the output end of the secondary shaft 220; and a generator 280, which is disposed on the snap-fit ​​mechanism 300 and whose input end is connected to the output end of the second speed-increasing gear set 270. Both the first speed-increasing gear set 260 and the second speed-increasing gear set 270 include a driving gear and a driven gear that mesh with each other, and the number of teeth of the driving gear is less than the number of teeth of the driven gear.

[0029] In this embodiment, when the flashlight uses the conventional flick-to-power mode or the ball-swing power mode, the operator flicks or swings the rotating arm assembly to drive the power generation mechanism 400 to rotate as a whole, simultaneously driving the main shaft 240 to rotate. Since the main shaft 240 passes inside the bearing 230, and the bearing 230 provides low-friction support, the main shaft 240 can smoothly and steadily transmit rotation, accurately transmitting the low-speed mechanical rotation generated by the power generation mechanism 400 to the input end of the first speed-increasing gear set 260. After receiving the low-speed rotation transmitted by the main shaft 240, the first speed-increasing gear set 260 achieves the first speed increase through the meshing of the driving gear and the driven gear, converting the low-speed rotation into a medium-speed rotation. This is then transmitted to the secondary shaft 220 through the output end, and the secondary shaft 220 further increases the medium-speed rotation... The power is transmitted to the input of the second speed-increasing gear set 270. The second speed-increasing gear set 270 adopts the same meshing speed-increasing logic as the first speed-increasing gear set 260 to achieve secondary speed increase, further amplifying the medium-speed rotation into high-speed rotation, completing the two-stage speed-increasing process, and greatly improving the rotation speed and power. The second speed-increasing gear set 270 transmits the high-speed rotation to the input of the generator 280 connected to it, driving the internal components of the generator 280 to rotate at high speed. The generator 280 converts the received high-speed mechanical rotation into DC power. The converted power is transmitted to the circuit board 160 through wires. The circuit board 160 rectifies and stabilizes the power to prevent voltage fluctuations from damaging the energy storage battery and lighting components. Then, the stable power is transmitted to the energy storage battery for storage.

[0030] In some possible embodiments, such as Figure 3 , Figure 6 As shown, the snap-fit ​​mechanism 300 includes: two first snap-fit ​​blocks 310, two second snap-fit ​​blocks 320, and two third snap-fit ​​blocks 330, all symmetrically fixed on the inner side wall of the housing 110; and multiple snap-fit ​​posts 340, which are respectively disposed on both sides of the mounting bracket 210 and both sides of the generator 280, and each snap-fit ​​post 340 engages with the corresponding snap-fit ​​block.

[0031] In this embodiment, the snap-fit ​​pins 340 are fixed on both sides of the mounting bracket 210 and the generator 280. By engaging with the snap-fit ​​blocks, the mounting bracket 210 and the generator 280 are firmly fixed, ensuring that the sub-shaft 220, bearing 230, speed-increasing gear set on the mounting bracket 210 and the generator 280 can maintain a precise assembly position, ensuring the coordinated operation of all components of the speed-increasing mechanism 200, and avoiding problems such as power transmission deviation and operation jamming caused by component misalignment.

[0032] In some possible embodiments, such as Figures 8 to 10As shown, the power generation mechanism 400 includes: a mounting block 410, which is fixedly and driveably connected to one end of the main shaft 240 extending to the outside of the mounting base 250; four rotating arm assemblies, evenly distributed in a circular array along the outer periphery of the mounting block 410; each rotating arm assembly includes: a limiting arm 420, fixedly disposed on the outer periphery of the mounting block 410; a limiting plate 421, disposed on the side of the limiting arm 420 away from the mounting block 410; and two sets of limiting grooves 422, symmetrically opened at the head and end of the inner walls on both sides of the limiting arm 420; extending... The extension arm 430 is slidably mounted on the limiting arm 420; two limiting plates 431 are fixedly mounted on one end of the extension arm 430 near the limiting arm 420, and are adapted to the two sets of limiting grooves 422; the rope storage cavity 432 is opened inside the extension arm 430; the counterweight ball 440 is located on one end of the extension arm 430 away from the limiting plate 431; the first stud 441 is mounted on the counterweight ball 440, and the end of the extension arm 430 away from the limiting plate 431 has a threaded groove adapted to the first stud 441.

[0033] In this embodiment, by pulling the extension arm 430 outward, the limiting piece 431 at the end of the extension arm 430 disengages from the limiting groove 422 at the head end of the limiting arm 420, pushing the extension arm 430 to slide outward from the limiting arm 420 until the limiting piece 431 is embedded in the limiting groove 422 at the end of the limiting arm 420. The extension arm 430 is in the extended state, and the rotating arm assembly reaches its maximum length. The operator can manually rotate any one of the rotating arm assemblies to drive the entire mounting block 410 to rotate synchronously. During rotation, the counterweight ball 440 at the end generates inertia using its own gravitational torque, extending the rotation time of the rotating arm assembly and the mounting block 410, reducing the frequency of operator manipulation, and lowering operator fatigue. The mounting block 410 is fixedly connected to the main shaft 240. When the mounting block 410 rotates, it synchronously drives the main shaft 240 to rotate, transmitting the rotation to the speed-increasing mechanism 200. The operator can periodically manipulate the rotating arm assembly, using the gravitational torque of the counterweight ball 440 to maintain the continuous rotation of the mounting block 410 and the main shaft 240.

[0034] In some possible embodiments, such as Figures 11 to 14 As shown, the switching mechanism 500 includes: a pull rope 510, which is built into the rope storage cavity 432, with one end fixedly connected to the inner wall of the rope storage cavity 432 and the other end fixedly connected to the counterweight ball 440; a rescue whistle 520, which is sleeved on the pull rope 510, with an opening on the inner side of the rescue whistle 520 for the pull rope 510 to enter, and the rescue whistle 520 has a tapered structure; a tail fin 530, which is fixedly disposed on the side of the rescue whistle 520 near the end of its tapered structure; a screw sleeve 540, which is disposed inside the rescue whistle 520 and is adapted to the first stud 441; and a second stud 550, which is fixedly disposed on the outer side of the outer shell 110 and is adapted to the screw sleeve 540.

[0035] In this embodiment, when switching to the ball-swing power generation mode, the counterweight ball 440 is removed by rotating it counterclockwise, and the pull rope 510 is pulled out from the rope storage cavity 432, extending the overall length of the rotating arm assembly and the counterweight ball 440, thereby increasing the rotational torque of the rotating arm assembly. The operator swings the flashlight to drive the rotating arm assembly with the pull rope 510 to rotate. Due to the increased rotational torque and the enhanced gravitational torque of the counterweight ball 440, the rotating arm assembly drives the mounting block 410 and the main shaft 240 to rotate smoothly and continuously, providing stable rotational power for the speed-increasing mechanism 200. Simultaneously, if a whistle is needed for emergency response, it can be used... By rotating the rescue whistle 520 counterclockwise, the inner sleeve 540 of the rescue whistle 520 is separated from the second stud 550 on the outer casing 110, releasing the storage fixation of the rescue whistle 520. The inner sleeve 540 of the rescue whistle 520 is then aligned with the first stud 441 on the counterweight ball 440 with the pull rope 510. By rotating the rescue whistle 520 clockwise, the sleeve 540 is threadedly connected to the first stud 441, and the rescue whistle 520 is fixed to the counterweight ball 440. When the counterweight ball 440 moves in a circular motion with the rotating arm assembly, a sound is emitted from inside the rescue whistle 520, realizing the simultaneous generation of electricity by throwing the ball and calling for help.

[0036] In some possible embodiments, such as Figure 13 As shown, the rescue whistle 520 has two independent sound channels on its inner side. Each sound channel includes: an air intake channel 521, which is located on the side of the rescue whistle 520 away from the tail fin 530; a resonance cavity 522, which is located at the end of the air intake channel 521 and is connected to the air intake channel 521; a baffle 523, which is located on the side wall of the resonance cavity 522; and an air outlet channel 524, which is located on the side of the resonance cavity 522 away from the air intake channel 521 and is connected to the resonance cavity 522.

[0037] In this embodiment, when the operator swings the flashlight, the rotating arm rotates synchronously, and the rescue whistle 520 moves in a circular motion with the rotating arm and the pull rope 510. During the rotation, the external airflow, under the action of centrifugal force and relative motion, rushes rapidly towards the opening of the air inlet channel 521 of the rescue whistle 520 and flows towards the resonance cavity 522. It hits the inclined baffle 523 on the inner wall of the resonance cavity 522 and is diverted by the baffle 523 to form turbulence, changing the flow direction. The turbulent airflow continues to hit the inner wall of the resonance cavity 522, causing the resonance cavity 522 to vibrate, thereby generating a whistle. The whistle generated by the vibration of the resonance cavity 522 is led out to the outside of the rescue whistle 520 through the gradually narrowing air outlet channel 524 at the end. Since the two sound channels are symmetrically distributed, the led-out whistles are superimposed to form a louder and more penetrating distress signal, realizing the simultaneous generation of electricity by swinging the ball and emergency distress call.

[0038] In some possible embodiments, such as Figure 8 As shown, the total length of the limiting arm 420 and the extension arm 430 after they are fully extended is greater than the width of the top wall of the outer casing 110.

[0039] In this embodiment, when switching to the ball-swing power generation mode, the extension arm 430 is fully extended. The operator swings the flashlight to drive the rotating arm assembly to rotate at high speed. If the total length of the limit arm 420 and the extension arm 430 after being fully extended is not greater than the width of the top wall of the outer shell 110, the rotating arm assembly will collide and rub against the top wall of the outer shell 110 during rotation, causing the operation to stall or even damage the outer shell 110, the counterweight ball 440, or the extension arm 430. However, if the total length is greater than the width of the top wall of the outer shell 110, it can be ensured that after the rotating arm assembly is fully extended, the counterweight ball 440 at its end completely avoids the top wall of the outer shell 110 on the rotation trajectory, without any contact interference, ensuring that the rotating arm assembly rotates smoothly, providing a stable power input to the speed-increasing mechanism 200, avoiding power generation interruption and component wear due to interference, and extending the overall service life of the flashlight.

[0040] When operating this multi-power generation mode energy-saving flashlight, the operator manually rotates any one of the rotating arm components, causing the mounting block 410 to rotate synchronously. The counterweight ball 440 utilizes its own gravitational torque to generate inertia, extending the rotation time and reducing the frequency of rotation. Simultaneously, the operator can swing the flashlight to drive the rotating arm component connected to the rescue whistle 520 to rotate at high speed. Utilizing the extended rotational torque and the gravitational torque of the counterweight ball 440, long-lasting, labor-saving rotation is achieved, simultaneously driving the other three rotating arm components to rotate synchronously. Block 410 is fixedly connected to the main shaft 240 of the speed-increasing mechanism 200. When the mounting block 410 rotates, it synchronously drives the main shaft 240 to rotate. The bearing 230 provides low-friction support for the shaft, ensuring that the main shaft 240 smoothly transmits rotation to the input end of the first speed-increasing gear set 260. The low-speed rotation transmitted by the main shaft 240 is amplified by the two speed-increasing gear sets and converted into high-speed rotation, which is then transmitted to the generator 280. The generator 280 converts the high-speed mechanical energy into DC electrical energy, which is then transmitted to the circuit board 160 of the flashlight body 100 via wires. After rectification and voltage regulation, the energy is stored in the built-in energy storage battery, forming a self-generating and self-storing cycle. When lighting is needed, the switch 170 on the outside of the casing 110 is manually triggered. The switch 170 transmits an on signal to the circuit board 160, which connects the energy storage battery and the lamp holder 130. The battery 150 releases electrical energy, which is conducted to the lamp holder 130 via the circuit board 160. The lamp holder 130 emits light that penetrates the protective sheet 140, thus providing illumination. When the switch 170 is turned off, the circuit board 160 cuts off the circuit, and the lighting stops. Meanwhile, during the ball-swing power generation process, the rescue whistle 520 moves in a circular motion with the rotating arm assembly. Under the action of centrifugal force and relative motion, the external airflow enters the two independent sound channels through the air intake channel 521 of the rescue whistle 520, impacts the baffle 523 on the inner wall of the resonance cavity 522 to form turbulence, and causes the resonance cavity 522 to vibrate. The whistle sound is discharged through the air outlet channel 524 and superimposed to form a loud distress signal, realizing the simultaneous operation of ball-swing power generation and emergency distress call. The rescue whistle 520 can also be disassembled separately and manually blown to realize emergency distress call.

[0041] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy-saving flashlight with multiple power generation modes, characterized in that, include: The main body of the flashlight has a built-in lighting component, providing basic lighting functionality; An acceleration mechanism is installed on the main body of the flashlight, and its output end is electrically connected to the energy storage battery built into the main body of the flashlight. The acceleration mechanism can convert the low-speed rotation generated by external force into high-speed rotation to improve power generation efficiency. A snap-fit ​​mechanism is provided on the inner side wall of the flashlight body. The speed-increasing mechanism is snapped and fixed on the snap-fit ​​mechanism. The snap-fit ​​mechanism can realize the limiting and quick assembly / disassembly of the speed-increasing mechanism. The power generation mechanism has its input end fixedly connected to the input shaft of the speed-increasing mechanism. The power generation mechanism includes four rotating arm assemblies. Each rotating arm assembly has a detachable counterweight ball at its end. Rotating any rotating arm assembly can drive the entire power generation mechanism to rotate, thereby driving the speed-increasing mechanism to operate synchronously and realizing the conversion of mechanical energy into electrical energy. The counterweight ball can extend the rotation time of the rotating arm assembly by utilizing its own gravitational torque. The switching mechanism is detachably mounted on the flashlight body. After assembly, it can be connected to any of the rotating arm assemblies. It can extend the overall length of the counterweight ball and the rotating arm assembly, thereby changing the rotational torque of the rotating arm assembly and switching to the ball-swinging power generation mode.

2. The energy-saving flashlight with multiple power generation modes according to claim 1, characterized in that, The flashlight body includes: The housing, wherein the snap-fit ​​mechanism is disposed on the inner sidewall of the housing; The lampshade is disposed at one end of the housing; A lamp holder is disposed on the inside of the lampshade; A protective sheet is provided on the lampshade and covers the outside of the lamp holder; The battery is built into the casing and adopts an energy storage battery structure; A circuit board is disposed inside the housing and is electrically connected to the lamp holder and the battery, respectively; A switch is located on the outside of the housing and is electrically connected to the circuit board.

3. The energy-saving flashlight with multiple power generation modes according to claim 2, characterized in that, The growth-increasing mechanisms include: The mounting bracket is snapped and fixed onto the snap-fit ​​mechanism; A secondary shaft is rotatably mounted on one side of the mounting bracket; The bearing is located on the other side of the mounting bracket; The main shaft is mounted on the bearing. A mounting base is provided on the top of the housing, and one end of the main shaft extends to the outside of the mounting base and is connected to the power generation mechanism; The first speed-increasing gear set has its input end connected to the output end of the main shaft and its output end connected to the input end of the secondary shaft. The second speed-increasing gear set has its input end connected to the output end of the secondary shaft; The generator is mounted on the locking mechanism, and its input end is connected to the output end of the second speed-increasing gear set.

4. The energy-saving flashlight with multiple power generation modes according to claim 3, characterized in that, Both the first speed-increasing gear set and the second speed-increasing gear set include a driving gear and a driven gear that mesh with each other, wherein the number of teeth of the driving gear is less than the number of teeth of the driven gear.

5. The energy-saving flashlight with multiple power generation modes according to claim 3, characterized in that, The latching mechanism includes: Two first latching blocks, two second latching blocks, and two third latching blocks are symmetrically fixed to the inner side wall of the outer casing; Multiple snap-fit ​​posts are respectively located on both sides of the mounting frame and both sides of the generator, and each snap-fit ​​post engages with the corresponding snap-fit ​​block.

6. The energy-saving flashlight with multiple power generation modes according to claim 3, characterized in that, The power generation mechanism includes: The mounting block is fixedly connected to one end of the main shaft that extends to the outside of the mounting base; Four rotating arm assemblies are evenly distributed in a circular array along the outer periphery of the mounting block.

7. The energy-saving flashlight with multiple power generation modes according to claim 6, characterized in that, Each of the aforementioned rotating arm assemblies includes: A limiting arm is fixedly disposed on the outer periphery of the mounting block; A limiting plate is disposed on the side of the limiting arm away from the mounting block; Two sets of limiting grooves are symmetrically opened at the head and end of the inner wall on both sides of the limiting arm; An extension arm is slidably mounted on the limiting arm; Two limiting pieces are fixedly disposed at one end of the extension arm near the limiting arm, and are adapted to correspond to the two sets of limiting grooves; A rope storage cavity is located inside the extension arm; A counterweight ball is disposed at the end of the extension arm away from the limiting piece; A first stud is disposed on the counterweight ball, and the end of the extension arm away from the limiting piece is provided with a threaded groove that matches the first stud.

8. The energy-saving flashlight with multiple power generation modes according to claim 7, characterized in that, The switching mechanism includes: A pull rope is built into the inside of the rope storage cavity, with one end fixedly connected to the inner wall of the rope storage cavity and the other end fixedly connected to the counterweight ball; A rescue whistle is fitted onto the pull rope. The inside of the rescue whistle has an opening for the pull rope to enter, and the rescue whistle has a tapered structure. The tail fin is fixedly mounted on the side of the rescue whistle near the end of its tapered structure; A threaded sleeve is disposed inside the rescue whistle and is adapted to the first stud. The second stud is fixedly disposed on the outside of the housing and is adapted to the threaded sleeve.

9. The energy-saving flashlight with multiple power generation modes according to claim 8, characterized in that, The rescue whistle has two independent sound channels on its inner side, each of which includes: An air intake channel is located on the side of the rescue sentry post away from the tail fin; A resonating cavity is located at the end of the air inlet channel and is connected to the air inlet channel; A baffle is disposed on the side wall of the resonance cavity; An air outlet channel is located on the side of the resonance cavity away from the air inlet channel and is connected to the resonance cavity.

10. The energy-saving flashlight with multiple power generation modes according to claim 7, characterized in that, The total length of the limiting arm and the extension arm when fully extended is greater than the width of the top wall of the outer casing.

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