一种内调焦结构防水手电筒

Abstract

本实用新型公开了一种内调焦结构防水手电筒，包括电筒本体，电筒本体内设有控制板和光源，电筒本体的一端设有灯头组件，另一端设有电池容纳腔，电池容纳腔内设有蓄电池，蓄电池和光源分别与控制板电性相连；灯头组件包括转筒和灯罩，转筒与电筒本体可旋转限位连接，灯罩套设在光源外围，且与光源可伸缩限位连接，灯罩与转筒的滑动限位连接，灯罩上设有透镜，转筒能够驱动灯罩轴向移动，进而带动透镜往靠近或远离光源的方向移动。本实用新型通过旋转转筒驱动灯罩移动实现调焦，无需改变灯头组件的内部体积，避免了因体积变化而产生的气压差，能够提升防水等级，满足潜水等高压水环境的使用需求。

Claims

1. An internally focused waterproof flashlight, characterized by: The flashlight includes a flashlight body, which contains a control board and a light source. One end of the flashlight body has a lamp head assembly, and the other end has a battery housing. The battery housing contains a storage battery, and the storage battery and the light source are electrically connected to the control board. The lamp head assembly includes a rotating cylinder and a lampshade. The rotating cylinder is rotatably and limitingly connected to the flashlight body. The lampshade is sleeved around the light source and is telescopically and limitingly connected to the light source. The lampshade is slidably and limitingly connected to the rotating cylinder. The lampshade is provided with a lens. The rotating cylinder can drive the lampshade to move axially, thereby driving the lens to move closer to or away from the light source.

2. The internally focused structure waterproof flashlight according to claim 1, wherein: The inner wall of the rotating cylinder is provided with an internal thread, and the outer wall of the lampshade is provided with an external thread, and the external thread is threadedly connected to the internal thread.

3. The internally focused structure waterproof flashlight according to claim 2, wherein: The light source is provided with a plurality of axial limiting posts around its periphery. The inner sidewall of the lampshade is provided with limiting grooves at positions corresponding to the axial limiting posts. The axial limiting posts extend into the corresponding limiting grooves and slide in cooperation with the corresponding limiting grooves.

4. The internally focused structure waterproof flashlight according to claim 3, wherein: The inner wall of the lampshade is provided with a limiting step surface, the lens abuts against the limiting step surface, the lampshade is provided with a pressing ring, the outer wall of the pressing ring abuts against the inner wall of the lampshade, and the end face of the pressing ring abuts against the end of the lens away from the limiting step surface.

5. The waterproof flashlight with internal focusing structure according to claim 4, characterized in that: The end of the rotating drum away from the flashlight body is provided with an end cap, and a light-transmitting lens is provided inside the end cap, with the light-transmitting lens abutting against the end face of the rotating drum.

6. The internally focused structure waterproof flashlight according to claim 5, wherein: A first sealing ring is fitted on the outer side wall of the flashlight body at a position corresponding to the rotating drum, and the first sealing ring is slidably and sealingly connected to the inner side wall of the rotating drum. A second sealing ring is fitted onto the outer wall of the rotating drum at a position corresponding to the end cap, and the second sealing ring is in sealing contact with the inner wall of the end cap. The end cap is provided with a mounting groove at a position corresponding to the light-transmitting lens, and a third sealing ring is provided in the mounting groove, the third sealing ring being sealed and abutting against the light-transmitting lens.

7. The internally focused structure waterproof flashlight according to any one of claims 1-6, wherein: The flashlight body is equipped with a switch assembly, which is electrically connected to the control board.

8. The internally focused structure waterproof flashlight according to claim 7, wherein: The switch assembly includes a push switch, an indicator light, and a light-transmitting keycap. The push switch and the indicator light are respectively connected to the flashlight body and electrically connected to the control board. The light-transmitting keycap is sleeved around the push switch and is sealed to the flashlight. The light emitted by the indicator light can pass through the light-transmitting keycap.

9. The internally focused structure waterproof flashlight of claim 8, wherein: The switch assembly also includes a metal button, which is movably and limitably connected to the flashlight body. The metal button is sleeved around the light-transmitting keycap, and one end of the light-transmitting keycap passes through the center of the metal button.

10. The internally focused structure waterproof flashlight of claim 7, wherein: The flashlight body is provided with a charging connector, which is electrically connected to the control board. The charging connector is used to connect an external power source to charge the battery. The flashlight body is provided with a sealing cover, which is detachably and sealingly connected to the charging connector.

Images