Abstract: A waterproof button structure applied to a wearable device having a button hole, including an installation sleeve, a button and a first sealing ring. The installation sleeve passes through the button hole and has a through hole. The button passes through the through hole and can move along an axial direction of through hole or rotate relative to the installation sleeve. An outer wall of button is provided with a first conical surface along a circumferential direction of button. An outer circumferential wall of first sealing ring is connected to a hole wall of through hole. The first sealing ring is sleeve on a periphery of button. An inner wall of first sealing ring is provided with a second conical surface along a circumferential direction of first sealing ring. The second conical surface and the first conical surface are at least partially abutted against and limited by each other.

Abstract: A leg-arm-paddle underwater robot is provided in the present invention, which includes: a frame, an operating mechanism, a traveling mechanism, and a propulsion mechanism. The traveling mechanism is adapted to enable the leg-arm-paddle composite underwater robot to travel. The propulsion mechanism is adapted to enable the leg-arm-paddle composite underwater robot to float in water. The operating mechanism includes a first robot arm, a second robot arm, and a first mounting base, wherein the first mounting base is detachably connected to the frame. Both the first robot arm and the second robot arm are rotatably connected to the first mounting base, and rotation centers of the first robot arm and the second robot arm are the same. The operating mechanism of the leg-arm-paddle composite underwater robot has a compact structure and a large working range. The leg-arm-paddle composite underwater robot has reduced volume, enhanced operation capability, wide applicability, and strong practicability.

Abstract: A leg-arm-paddle underwater robot is provided in the present invention, which includes: a frame, an operating mechanism, a traveling mechanism, and a propulsion mechanism. The traveling mechanism is adapted to enable the leg-arm-paddle composite underwater robot to travel. The propulsion mechanism is adapted to enable the leg-arm-paddle composite underwater robot to float in water. The operating mechanism includes a first robot arm, a second robot arm, and a first mounting base, wherein the first mounting base is detachably connected to the frame. Both the first robot arm and the second robot arm are rotatably connected to the first mounting base, and rotation centers of the first robot arm and the second robot arm are the same. The operating mechanism of the leg-arm-paddle composite underwater robot has a compact structure and a large working range. The leg-arm-paddle composite underwater robot has reduced volume, enhanced operation capability, wide applicability, and strong practicability.