Abstract: A hinge mechanism and an electronic device are provided. The hinge mechanism includes a main shaft, a mounting bracket, a rotation support member, and a sliding assembly. The mounting bracket is rotatably connected to the main shaft through the rotation support member. The sliding assembly is located between the main shaft and the mounting bracket. The sliding assembly includes a slider and a rotating member. One end of the slider is rotatably connected to the main shaft, and the other end is slidably connected to the mounting bracket through a first sliding groove. One end of a first rotating member is rotatably connected to an end that is of a first slider and that is away from the main shaft, and the other end is slidably connected to a first mounting bracket through a second sliding groove.

Abstract: A camera system includes a camera lens assembly, a motor circuit board, and an image sensor, where the motor circuit board and the camera lens assembly each have a light passing hole, the camera lens assembly is located between the image sensor and the motor circuit board, a light-sensitive surface of the image sensor is located on an image side of the camera lens assembly, and the motor circuit board is located on an object side of the camera lens assembly.

Abstract: A protective device for a handheld electronic device includes a frame, at least one bending member, a first elastic member, and at least one rotation member. The frame is sheathed on an electronic device and protects the electronic device. The at least one bending member is mounted on the frame. The at least one rotation member is mounted under elastic rotational compression through the first elastic member and is latched with an end of the bending member. When the bending member is jarred to unlatch from the rotation member, the rotation member rotates out quickly and supports the electronic device.

Abstract: A protective device for a handheld electronic device includes a frame, at least one bending member, a first elastic member, and at least one rotation member. The frame is sheathed on an electronic device and protects the electronic device. The at least one bending member is mounted on the frame. The at least one rotation member is mounted under elastic rotational compression through the first elastic member and is latched with an end of the bending member. When the bending member is jarred to unlatch from the rotation member, the rotation member rotates out quickly and supports the electronic device.

Abstract: A screwdriver capable of driving screws with any shape of head comprises a fixing member and a main body. The main body comprises a first end and a second end, the fixing member fixes on the first end of the main body. The screwdriver further comprises a number of hard and small-diameter cores and a button. The cores are contained in the main body and are partially exposed out of the main body, the button is configured on the second end of the main body and resists against one end of the number of cores. The button drives a part of the number of cores to form a head to match a screw.

Abstract: A ventilated insole including a pad (10) having a bladder (20), an air entry (30), an air exit (40), an entry conduit (50) interconnecting the air entry (30) and the bladder (20), an exit conduit (60) interconnecting the bladder (20) and the air exit (40), and two one-way valves (70) wherein one one-way valve (70) is at a joining portion of the bladder (20) and the entry conduit (50) and the other one-way valve (70) is at a joining portion of the bladder (20) and the exit conduit (60). Each of the entry conduit (50) and the exit conduit (60) has a triangular section so as to increase resistance, thereby facilitating air flow in the entry conduit (50) and the exit conduit (60) and planarizing the pad (10). The insole can be disposed in one of a variety of shoes and brings a degree of comfort to wearer.