Abstract: This application provides a folding control mechanism. The folding control mechanism includes a base and a first rotating assembly. The first rotating assembly includes a first swing arm and a first housing fastening bracket, the first swing arm is rotatably connected to the base, and the first swing arm is slidably connected to the first housing fastening bracket. The first housing fastening bracket is provided with a first sliding groove, the first sliding groove extends in a first direction or a second direction, and the first swing arm is installed in the first sliding groove and is capable of sliding in the first sliding groove in the first direction or the second direction. A first stop block is disposed between the first swing arm and the first housing fastening bracket.

Abstract: A hinge mechanism includes two guide rod mechanisms that are respectively formed between a main shaft assembly in the hinge mechanism, a first support arm, a first guide rod arm, and a first connecting frame, and between the main shaft assembly in the hinge mechanism, a second support arm, a second guide rod arm, and a second connecting frame. A first support plate and a second support plate are respectively fastened to the first support arm and the second support arm. The first support arm and the first connecting frame are rotatably connected through a first arc-shaped sliding groove and a first arc-shaped arm that are in sliding fit. The second support arm and the second connecting frame are rotatably connected through a second arc-shaped sliding groove and a second arc-shaped arm that are in sliding fit.

Abstract: A hinge mechanism includes a main shaft assembly, a first housing fastening bracket, a rotating module, and a first damping assembly. The rotating module includes a first swing arm, the first swing arm is rotatably connected to the main shaft assembly, and the first swing arm is slidably connected to the first housing fastening bracket. The first damping assembly includes a first cam, a second cam, a first elastic member, and a first limiting block, the first cam is disposed on a side that is of the first swing arm, the second cam is located on a side that is of the first cam and that is away from the first swing arm, the second cam is slidably disposed on the first housing fastening bracket in a axial direction of the hinge mechanism, a cam surface of the second cam abuts against a cam surface of the first cam.

Abstract: A hinge mechanism includes a base, a rotating assembly, and a damping assembly. The rotating assembly includes a first rotating arm and a second rotating arm. The first rotating arm and the second rotating arm are rotatably connected to two sides of the base respectively. One side that is of the first rotating arm and that is close to the base has a first cam surface. One side that is of the second rotating arm and that is close to the base has a second cam surface. The damping assembly includes a transmission member, a first fastening part, and an elastic member. The transmission member is slidably disposed on the base in a first direction. The transmission member is located between the first rotating arm and the second rotating arm. Two sides of the transmission member abut against the first cam surface and the second cam surface respectively.

Abstract: Some embodiments of the disclosure describe an evaluation system based on analyte data including a memory storing a program, a display, and a processor. In some examples, the processor is configured to: receive analyte data during a predetermined time period from an object to be tested, acquire a plurality of analyte indicators different from each other based on the analyte data, normalize the plurality of analyte indicators to a predetermined range to acquire a plurality of normalized analyte indicators, plot a polygon pattern corresponding to the analyte data during the first time period as a target polygon pattern, plot a polygon pattern corresponding to the analyte data during the second time period as a reference polygon pattern, and take a line segment between a vertex and a center point as an axis, and display the target polygon pattern and the reference polygon pattern.

Abstract: A hinge mechanism includes a main shaft, a first housing support, a second housing support, and a flatness stop mechanism. The flatness stop mechanism includes a first stop structure and a second stop structure. The first stop structure includes a first connecting rod and a first stop block, where the first connecting rod is rotatably coupled to the main shaft, the first connecting rod is slidably coupled to the first housing support, the first stop block is fastened to the first housing support, and the first stop block is disposed opposite to the first connecting rod. The second stop structure includes a second connecting rod and a second stop block.

Abstract: The hinge mechanism includes a main shaft, a synchronization assembly, a first housing mounting bracket, and a second housing mounting bracket. The first housing mounting bracket and the second housing mounting bracket are located on two opposite sides of the main shaft, and the synchronization assembly is located between the first housing mounting bracket and the second housing mounting bracket. The synchronization assembly includes a first connecting rod, a second connecting rod, and a third connecting rod. The first connecting rod and the third connecting rod are rotatably connected via the second connecting rod, the first connecting rod is rotatably connected to the main shaft. The third connecting rod is slidably connected to the second housing mounting bracket. The first housing mounting bracket is provided with a first track slot, and the first connecting rod slides along the first track slot.

Abstract: A simulator and test method of polarization transmission in sea fog belong to the technical field of polarization transmission characteristics. The simulator comprises an emitting device, a receiving device, a main box body, an automatic light alignment system, a water fog layer calibration system, a salt fog layer calibration system, and an aerosol layer calibration system. In accordance with the present disclosure, the automatic alignment of polarized light and a relatively stable sea fog environment are simulated in an indoor environment, the accuracy of indoor simulation is improved, the conformity between measured data and a theoretical simulation result is superior to 80%, and a reliable technical support is provided for the sea surface detection.

Abstract: The hinge mechanism includes a main shaft, a first rotating piece, a first mounting plate, a first magnetic piece, a first magnetic fitting piece, a second rotating piece, a second mounting plate, a second magnetic piece, and a second magnetic fitting piece. The first rotating piece, the first mounting plate, the second rotating piece, and the second mounting plate are rotatably connected to the main shaft. The first rotating piece is slidably connected to the first mounting plate. The second rotating piece is slidably connected to the second mounting plate. The first magnetic piece is on the first rotating piece. The first magnetic fitting piece is located on the first mounting plate and magnetically attracts the first magnetic piece. The second magnetic piece is on the second rotating piece. The second magnetic fitting piece is on the second mounting plate and magnetically attracts the second magnetic piece.

Abstract: A hinge mechanism includes a base and two rotating components. Each rotating component includes a support arm, a swing arm, and a housing mounting bracket. The two support arms are respectively disposed on two sides of the base and are rotatably connected to the base. The two swing arms are respectively disposed on two sides of the base and are rotatably connected to the base. Each of the two housing mounting bracket is provided with two sliding grooves. For a support arm, a swing arm, and a housing mounting bracket that are located on a same side of the base, the support arm and the swing arm may separately slide in a sliding groove, and projections of sliding directions of the support arm and the swing arm are not parallel in a reference plane perpendicular to the rotation axes of the support arm and the swing arm.

Abstract: The hinge mechanism includes a base and a main hinge module. The base includes a support surface for supporting a flexible display. The main hinge module includes a first rotating component and a second rotating component disposed on two opposite sides of the base. The first rotating component includes a first support plate, and the first support plate includes a first plate surface for supporting the flexible display. The second rotating component includes a second support plate, and the second support plate includes a second plate surface for supporting the flexible display. When the hinge mechanism is in a folded state, an included angle between the first plate surface and a bearing surface is less than an included angle between the second plate surface and the bearing surface, to form display accommodating space between the first plate surface, the second plate surface, and the bearing surface.

Abstract: The rotation shaft structure includes a main shaft assembly, and two folding assemblies that are symmetrically disposed with respect to the main shaft assembly. The two folding assemblies may rotate toward or against each other relative to the main shaft assembly. When the folding assembly is specifically disposed, the folding assembly includes a rotation assembly, a support plate, and a housing mounting bracket. The rotation assembly is rotationally connected to the main shaft assembly. The support plate is rotationally connected to the housing mounting bracket and slidably connected to the rotation assembly.

Abstract: A rotating shaft mechanism and an electronic device comprising the rotating shaft mechanism are provided. In an implementation, the rotating shaft mechanism includes a base, a first driving part, a guiding part, and a second driving part. The base includes a fastener and two first rotating arms. The fastener is fastened to the base. One end of each first rotating arm is rotatively connected to the fastener, and the other end is fastened to a middle frame. The guiding part includes two guiding blocks. Each guiding block is rotatively connected to the base, each guiding block corresponds to one first rotating arm, and the guiding block is linked to the first rotating arm. The second driving part includes two second rotating arms, the second rotating arm is fastened to a casing, and the second rotating arm is linked to the guiding block.

Abstract: Embodiments provide a rotating shaft mechanism applicable to the field of foldable displays of electronic device technologies. The rotating shaft mechanism includes a main body, a first support plate, a second support plate, a middle support plate, a first swing arm, and a second swing arm. The first swing arm, the main body, and the first support plate may form a slider-crank, and the second swing arm, the main body, and the second support plate also form a slider-crank. The middle support plate may move relative to the main body when driven by at least one of the first support plate, the second support plate, the first swing arm, or the second swing arm.

Abstract: A rotating shaft mechanism includes a body, a first door plate, a second door plate, an intermediate door plate, a first connecting rod assembly, and a second connecting rod assembly. The first connecting rod assembly includes a first housing connecting rod, a first gear connecting rod, and a first secondary connecting rod. The rotating shaft mechanism further includes a first meshing transmission structure. The first housing connecting rod, the first gear connecting rod, the first secondary connecting rod, the first door plate, and the body form a crank-slider structure to drive the first door plate to rotate relative to the body. The first gear connecting rod drives the intermediate door plate to move relative to the body using the first meshing transmission structure.

Abstract: A foldable hinge includes a base and two folding assemblies. The two folding assemblies are located on two sides of the base, are both connected to the base, and are capable of being opened or closed relative to each other. Each of the two folding assemblies includes a first swing arm, a second swing arm, a synchronous gear, and a support component. The first swing arm is pivotally connected to the base. The second swing arm is pivotally connected to the base. The synchronous gear is located in the base, and the first swing arm and the second swing arm are connected through transmission by using the synchronous gear. The support component is pivotally connected to the first swing arm, is linked to the second swing arm, and is capable of rotating relative to the first swing arm under an action of the second swing arm.

Abstract: A rotating shaft mechanism (1) includes a main shaft module (101), and the main shaft module (101) includes a base (1013), a first support plate (1011), a second support plate (1012), a first gear linkage (1014), a second gear linkage (1015), an elastic mechanical part (1022), and a conjoined cam (1021). The first support plate (1011) and the second support plate (1012) are rotatably connected to the base (1013). The first gear linkage (1014) and the second gear linkage (1015) are rotatably connected to an end portion of the base (1013), and the first gear linkage (1014) and the second gear linkage (1015) are connected through transmission by using gears that are engaged with each other.

Abstract: This application provides a rotation shaft structure and an electronic device. The rotation shaft structure includes a main shaft assembly, and two folding assemblies. The folding assembly includes a rotation assembly, a support plate, and a housing mounting bracket. The rotation assembly is rotationally connected to the main shaft assembly. The support plate is rotationally connected to the housing mounting bracket and slidably connected to the rotation assembly. When two housing mounting brackets rotate toward each other, two support plates rotate in a same direction relative to the housing mounting brackets on corresponding sides, so that the two support plates and the main shaft assembly can form a triangle-like display accommodation space. When the electronic device is in a closed state, the display accommodation space can be used for accommodating a bent portion of the flexible display, so that the flexible display is not damaged by extrusion.

Abstract: This disclosure relates to a folding module and a foldable electronic device. A first protrusion and a first sliding slot are provided between a drive portion and a first connection member. A second protrusion and a second sliding slot are provided between the drive portion and a second connection member. A first drive spring and a second drive spring press against the drive portion. In a process in which the first support member folds or unfolds relative to the second support member, folding or unfolding can be implemented provided that the first support member and the second support member rotate by a relatively small angle, so that a speed of folding or unfolding of the first support member relative to the second support member is increased.