Zoom flashlight with mobile power supply
By designing a zoom flashlight with a built-in power bank, the problem of limited functionality in existing flashlights has been solved. This results in a multi-functional flashlight with adjustable light and fast charging, suitable for various scenarios.
Patent Information
- Application Number
- CN202520602747.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing flashlights have limited functionality, cannot flexibly adjust the focus and dispersion of light, and cannot be recharged.
Design a zoom flashlight with a portable power supply, combining a charging and discharging mechanism with a zoom lighting mechanism. It adopts a Loehler triangle structure, is equipped with high-efficiency LEDs and a telescopic lens, and achieves light focusing and divergence adjustment through a threaded or guide rail structure. It also features USB and Type-C interfaces in the interface area for fast charging.
It achieves multi-functionality as a flashlight, serving as both a power bank and allowing for adjustment of light focus and dispersion as needed, making it suitable for various scenarios. It also features fast charging and a display screen showing the device's status.
Smart Images

Figure CN223939245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flashlight technology, and in particular to a zoom flashlight with a portable power source. Background Technology
[0002] A flashlight is a handheld electronic lighting tool, typically consisting of a bulb, body, battery, and switch. It emits a bright light in dark environments to provide illumination. The history of flashlights can be traced back to the late 19th century, with the invention of batteries and light bulbs.
[0003] Existing flashlights have limited functionality, only providing illumination. Their beam focusing and diffusion adjustments are not flexible enough, and they cannot be recharged. Therefore, a zoom flashlight with a portable power source is needed to solve these problems. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide a zoom flashlight with a portable power source, which can be used as both a power bank and a flashlight, thus increasing the functionality of the flashlight.
[0005] This utility model embodiment is implemented as follows: a zoom flashlight with a portable power supply includes: an end cap and a body. The end cap has a threaded hole A, a through hole, and a positioning shaft. A screw B, which is threadedly connected to the body, passes through the through hole of the end cap and is used to fix the end cap to the body. A charging and discharging mechanism is mounted on the end cap and connected to a battery installed inside the body. The battery powers the charging and discharging mechanism, and the positioning shaft positions the battery. A zoom lighting mechanism is engaged at the end of the body away from the end cap and connected to the charging and discharging mechanism for zoom lighting.
[0006] Preferably, the charging and discharging mechanism includes: a PCB board disposed on the end cover, a screw D passing through the PCB board and threadedly connected to a threaded hole in the end cover, the screw D being used to fix the PCB board to the end cover; a switch for controlling the circuit on / off is mounted on the PCB board, a Type-C interface mounted on the PCB board is provided on one side of the switch, a USB interface mounted on the PCB board is provided on the other side of the Type-C interface, and a display screen is mounted in the middle of the PCB board, the switch, the Type-C interface, the USB interface and the display screen all passing through the end cover.
[0007] Preferably, the zoom lighting mechanism includes: a reflector cup, which is snapped onto the end of the barrel away from the end cap, a screw A is threaded onto the reflector cup, the screw A has a groove, and an O-ring is provided in the groove of the screw A; a light source, which is disposed on the reflector cup, a screw C threaded onto the reflector cup and the light source, the screw C is used to fix the light source on the reflector cup, a wire is connected to the light source, and the wire is connected to the PCB board; a barrel head, which has a slot and threads, and the barrel head is sleeved on the screw A through the slot; a lens, which is disposed on the barrel head, and a pressure ring for pressing the lens onto the barrel head is threaded onto the barrel head.
[0008] This utility model provides a zoom flashlight with a portable power bank, featuring a Loehr triangle design. One end is the flashlight head, the other is the power bank interface, and the middle is the grip area. This telescopic zoom flashlight is convenient for handheld operation. The head uses a high-efficiency, long-life LED with low energy consumption and high brightness. A unique telescopic zoom lens assembly is located in front of the LED. By pushing and pulling, the distance between the lens and the LED can be precisely adjusted. When the lens is close to the LED, the light is refracted to form a focused beam, enabling powerful illumination over long distances, suitable for long-distance searches and warnings. When the lens is away from the LED, the light diffuses, providing a large-area illumination effect, suitable for close-range lighting and camping. To achieve precise zoom control, a precision threaded or guide rail structure is designed in the telescopic structure to ensure the stability and smoothness of the lens during movement, avoiding jamming or shifting, thus ensuring the uniformity and continuity of the zoom. The device features a USB port and a Type-C port, making it compatible with most electronic devices on the market, such as mobile phones, tablets, and smartwatches, enabling fast charging. A small display screen at the bottom shows the power bank's remaining battery level, charging status, and the flashlight's current brightness level, allowing users to easily monitor the device's operating status. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of a zoom flashlight with a portable power source.
[0010] Figure 2 This is a schematic diagram of a zoom flashlight with a built-in power bank.
[0011] Figure 3 This is a schematic diagram of the bottom of a zoom flashlight with a built-in power bank.
[0012] Figure 4 This is a partial cross-sectional schematic diagram of a zoom flashlight with a portable power source.
[0013] Figure 5 This is a partially enlarged cross-sectional view of a zoom flashlight with a portable power source.
[0014] Figure 6 This is a cross-sectional view of a zoom flashlight with a portable power source when extended.
[0015] Figure 7 A schematic diagram of the reflector and light source of a zoom flashlight with a portable power source.
[0016] Figure 8 A schematic diagram of the internal structure of the reflector and light source of a zoom flashlight with a portable power source.
[0017] Figure 9 A schematic diagram of the overall structure of a zoom flashlight head with a portable power source.
[0018] Figure 10 A schematic diagram of screw A in a zoom flashlight with a portable power source.
[0019] Figure 11 A schematic diagram of the overall structure of screw A in a zoom flashlight with a portable power source.
[0020] Figure 12 A schematic diagram of the end cap of a zoom flashlight with a portable power source.
[0021] Figure 13 A schematic diagram of the structure of the zoom flashlight end cap with a portable power supply and its connection to the PCB.
[0022] In the attached diagram: 1. End cap; 101. Threaded hole A; 102. Through hole; 103. Positioning shaft; 2. Cylinder body; 3. Reflector cup; 4. Cylinder head; 401. Slot; 402. Thread; 5. Lens; 6. Pressure ring; 7. Screw A; 701. Groove; 8. Switch; 9. Screw B; 10. Type-C interface; 11. Display screen; 12. USB interface; 13. Battery; 14. Wire; 15. O-ring; 16. Light source; 17. Screw C; 18. PCB board; 19. Screw D. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not limit the present utility model.
[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0025] Please see Figures 1-13 This utility model provides a zoom flashlight with a portable power supply, which includes:
[0026] The device comprises an end cap 1 and a cylindrical body 2. The end cap 1 has a threaded hole A101, a through hole 102, and a positioning shaft 103. A screw B9, which is threadedly connected to the cylindrical body 2, passes through the through hole 102 of the end cap 1. The screw B9 is used to fix the end cap 1 to the cylindrical body 2. A charging and discharging mechanism is installed on the end cap 1. The charging and discharging mechanism is connected to a battery 13 installed inside the cylindrical body 2. The battery 13 is used to power the charging and discharging mechanism. The positioning shaft 103 is used to position the battery. A zoom lighting mechanism is snapped onto the end of the cylindrical body 2 away from the end cap 1 and connected to the charging and discharging mechanism. It is used for zoom lighting.
[0027] When using this zoom flashlight with a portable power source, the charging and discharging mechanism can be turned on first. The battery 13 can power the charging and discharging mechanism. Devices that need to be charged can be connected to the charging and discharging mechanism for charging. At the same time, the charging and discharging mechanism can power the zoom lighting mechanism, thereby enabling lighting.
[0028] like Figures 1-13 As shown, in a preferred embodiment of this utility model, the charging and discharging mechanism includes: a PCB board 18, which is disposed on the end cover 1. A screw D19 passes through the PCB board 18 and is threadedly connected to the threaded hole 101 of the end cover 1. The screw D19 is used to fix the PCB board 18 to the end cover 1. A switch 8 for controlling the circuit on and off is installed on the PCB board 18. A Type-C interface 10 is provided on one side of the switch 8 and a USB interface 12 is provided on one side of the Type-C interface 10 and mounted on the PCB board 18. A display screen 11 is installed in the middle of the PCB board 18. The switch 8, the Type-C interface 10, the USB interface 12 and the display screen 11 all pass through the end cover 1.
[0029] When charging, turn on switch 8 to connect the circuit between battery 13 and PCB board 18. The charger of the device that needs to be charged can then be connected to the Type-C interface 10 or USB interface 12 to charge the device. The display screen 11 can display the remaining power of battery 13, charging status, and brightness information of zoom lighting mechanism.
[0030] like Figures 1-13As shown, in a preferred embodiment of this utility model, the zoom lighting mechanism includes: a reflector cup 3, which is snapped onto the end of the barrel 2 away from the end cap 1, a screw A7 is threaded onto the reflector cup 3, the screw A7 has a groove 701, and an O-ring 15 is provided in the groove 701 of the screw A7; a light source 16, which is disposed on the reflector cup 3, a screw C17 threaded onto the reflector cup 3 and connected to the light source 16, the screw C17 is used to fix the light source 16 onto the reflector cup 3, a wire 14 is connected to the light source 16, and the wire 14 is connected to the PCB board 18; a barrel head 4, which has a slot 401 and a thread 402, the barrel head 4 is sleeved on the screw A7 through the slot 401; a lens 5, which is disposed on the barrel head 4, the barrel head 4 is connected to a pressure ring 6 for pressing the lens 5 onto the barrel head 4 through the thread 402.
[0031] When illuminating, the battery 13 supplies power to the light source 16 through the wire 14. The light emitted by the light source 16 can be emitted through the lens 5 to provide illumination. When zooming, the head 4 is pulled, which causes the lens 5, which is pressed by the pressure ring 6, to slide along the screw A7 and the O-ring 15. This allows the distance between the lens 5 and the light source 16 to be adjusted, thus zooming the flashlight. The O-ring 15 on the groove 701 provides a damping effect.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A zoom flashlight with a portable power source, comprising an end cap and a body, characterized in that, The end cap has a threaded hole A, a through hole and a positioning shaft. The through hole of the end cap is through which a screw B, which is threaded to the cylinder body, passes. The screw B is used to fix the end cap to the cylinder body. A charging and discharging mechanism is mounted on the end cap. The charging and discharging mechanism is connected to a battery installed inside the cylinder. The charging and discharging mechanism is used to supply power to the battery, and the positioning shaft is used to position the battery. The zoom lighting mechanism is snapped onto the end of the cylinder away from the end cap and connected to the charging and discharging mechanism for zoom lighting.
2. The zoom flashlight with a portable power source according to claim 1, characterized in that, The charging and discharging mechanism includes: The PCB board is mounted on the end cover. The PCB board passes through a screw D that is threaded to the threaded hole of the end cover. The screw D is used to fix the PCB board to the end cover. The PCB board is equipped with a switch for controlling the on / off state of the circuit. A Type-C interface is mounted on one side of the switch and a USB interface is mounted on the other side of the Type-C interface. A display screen is mounted in the middle of the PCB board. The switch, Type-C interface, USB interface and display screen all pass through the end cover.
3. The zoom flashlight with a portable power source according to claim 2, characterized in that, The zoom illumination mechanism includes: A reflector cup is snapped onto the end of the cylinder away from the end cap. A screw A is threaded onto the reflector cup. A groove is provided in the groove of screw A and an O-ring is provided therein. A light source is mounted on a reflector cup, through which a screw C, which is threadedly connected to the light source, passes. The screw C is used to fix the light source on the reflector cup. A wire is connected to the light source and is connected to the PCB board. The cylindrical head has a slot and a thread, and the cylindrical head is sleeved on the screw A through the slot; A lens is mounted on a barrel head, which is threadedly connected to a pressure ring for pressing the lens onto the barrel head.