Abstract: The present disclosure relates to the technical field of pyrolysis and improvement of caking middling coals, in particular to a low temperature pyrolysis method of a caking middling coal. The present disclosure provides a low temperature pyrolysis method of a caking middling coal, including the following steps: conveying the caking middling coal into a pyrolysis reactor through a top of the pyrolysis reactor; dividing a reaction chamber of the pyrolysis reactor into a drying section, a softening section, a melting and depolymerization section, a solidification section, and a cooling section by means of multi-channel gas distribution; and conducting zoned temperature control-based pyrolysis to obtain semi-coke at a bottom of the reactor as well as tar and coal gas at the top of the reactor. The pyrolysis method can well avoid caking and swelling of the caking middling coal during pyrolysis.

Abstract: An optical detection device includes a first linear light source, a second linear light source, an optical sensor array and a processor. The first linear light source is adapted to project a first long strip illumination beam onto the target container. The second linear light source is adapted to project a second long strip illumination beam onto the target container, and the second long strip illumination beam is crossed with the first long strip illumination beam. The optical sensor array is adapted to receive a first long strip detection beam and a second long strip detection beam reflected from the target container. The processor is electrically connected to the optical sensor array. The processor is adapted to analyze intensity distribution of the first long strip detection beam and the second long strip detection beam to acquire a relative distance between the optical sensor array and the target container.

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.

Abstract: A switch assembly includes a shell, and a push button including a fixing member, a pushing member, an elastic member and an electrical-conductive member. A shell includes an upper surface and a cavity extending from the upper surface to a lower surface opposite to the upper surface. The fixing member is received in the cavity of the shell. The pushing member is slidably received in the fixing member and exposed out of the cavity. The elastic member is positioned between the pushing member and the shell. The electrical-conductive member is mounted on an end of the pushing member.

Abstract: An electronic device includes a front cover, a keyboard, and a sliding apparatus. The sliding apparatus is slidably coupled to the front cover. The keyboard is pivotally coupled to the sliding apparatus. By pulling the sliding apparatus and rotating the keyboard, the keyboard is foldable on the front cover.

Abstract: An electronic device includes a front cover, a keyboard, and a sliding apparatus. The sliding apparatus is slidably coupled to the front cover. The keyboard is pivotally coupled to the sliding apparatus. By pulling the sliding apparatus and rotating the keyboard, the keyboard is foldable on the front cover.

Abstract: An electrical adapter assembly for connecting a first hard disk drive and a second hard disk drive is provided. The electrical adapter assembly includes a connector capable of electrically inserting into the first hard disk drive, a printed circuit board (PCB) module electrically connecting the connector, and a loading member for loading the first hard disk drive. The PCB module includes a chip for controlling data transfer between the first hard disk drive and the second hard disk drive. The loading member includes a base and at least two guiding portions pivotally attached on the base to allow the first hard disk drive to be able to slide between the at least two guiding portions.

Abstract: A peripheral apparatus assembly for an electronic device includes a base, two speakers and a signal line. The base supports the electronic device. The two speakers rotate with respect to the base to selectively locate at the first position and a second position. Each speaker has a sound surface from which sound waves generated by the speaker radiate. At the first position, the two speakers are parallel to each other, and the two sound surfaces face away from each other. At the second position, the sound surfaces face the same direction as the two speakers. The signal line electrically connects the two speakers to the electronic device.

Abstract: A switch assembly includes a shell, and a push button including a fixing member, a pushing member, an elastic member and an electrical-conductive member. A shell includes an upper surface and a cavity extending from the upper surface to a lower surface opposite to the upper surface. The fixing member is received in the cavity of the shell. The pushing member is slidably received in the fixing member and exposed out of the cavity. The elastic member is positioned between the pushing member and the shell. The electrical-conductive member is mounted on an end of the pushing member.

Abstract: An electrical adapter assembly for connecting a first hard disk drive and a second hard disk drive is provided. The electrical adapter assembly includes a connector capable of electrically inserting into the first hard disk drive, a printed circuit board (PCB) module electrically connecting the connector, and a loading member for loading the first hard disk drive. The PCB module includes a chip for controlling data transfer between the first hard disk drive and the second hard disk drive. The loading member includes a base and at least two guiding portions pivotally attached on the base to allow the first hard disk drive to be able to slide between the at least two guiding portions.