Abstract: A turning support for a sight includes a mounting portion, a base, and a rotating shaft. The mounting portion is hinged with the base through the rotating shaft, and a lower surface of the mounting portion is located above the base, such that the mounting portion is turned about the rotating shaft between a use position and a storage position. An upper surface of the mounting portion is structurally connected to a sight, and a lower surface of the base is structurally connected to a guide rail of a firearm. A first magnet is arranged on the lower surface of the mounting portion, and a second magnet is arranged on the upper surface of the base. When the lower surface of the mounting portion is turned to the use position toward the base, the first magnet and the second magnet are attracted to each other.

Abstract: A turning support for a sight includes a mounting portion, a base, and a rotating shaft. The mounting portion is hinged with the base through the rotating shaft, and a lower surface of the mounting portion is located above the base, such that the mounting portion is turned about the rotating shaft between a use position and a storage position. An upper surface of the mounting portion is structurally connected to a sight, and a lower surface of the base is structurally connected to a guide rail of a firearm. A first magnet is arranged on the lower surface of the mounting portion, and a second magnet is arranged on the upper surface of the base. When the lower surface of the mounting portion is turned to the use position toward the base, the first magnet and the second magnet are attracted to each other.

Abstract: A chargeable gunsight bracket and a gunsight having the same are provided. The gunsight bracket includes a bracket body, a chargeable battery, and a power supply circuit board electrically connected to the chargeable battery. A bottom of the bracket body is provided with a groove, and the bracket body is further provided with a battery holder and a charging interface. The power supply circuit board and the chargeable battery are both mounted in the battery holder, two ends of the charging interface are respectively connected to the power supply circuit board and external environment. The chargeable gunsight bracket is fixedly mounted on a gun through the groove, and the chargeable battery is mounted in the battery holder. When power of the chargeable bracket is running out, the external power supply can directly charge the chargeable battery through the charging interface, so that the gunsight can be used continuously.

Abstract: A chargeable gunsight bracket and a gunsight having the same are provided. The gunsight bracket includes a bracket body, a chargeable battery, and a power supply circuit board electrically connected to the chargeable battery. A bottom of the bracket body is provided with a groove, and the bracket body is further provided with a battery holder and a charging interface. The power supply circuit board and the chargeable battery are both mounted in the battery holder, two ends of the charging interface are respectively connected to the power supply circuit board and external environment. The chargeable gunsight bracket is fixedly mounted on a gun through the groove, and the chargeable battery is mounted in the battery holder. When power of the chargeable bracket is running out, the external power supply can directly charge the chargeable battery through the charging interface, so that the gunsight can be used continuously.

Abstract: Embodiments of the application disclose a data storage method and a storage server. The method includes: detecting actual usage of a hard disk corresponding to an initial capacity level in configured hard disk capacity levels; when it is determined, according to the detected actual usage, that the hard disk corresponding to the initial capacity level exceeds a limit, searching for a hard disk corresponding to a second highest capacity level and is higher than the initial capacity level; and when the hard disk corresponding to the second highest capacity level is obtained by searching, determining a migration ratio of a virtual node according to the initial capacity level, the second highest capacity level, and the actual hard disk capacity, and performing virtual node migration between hard disks that are corresponding to the configured hard disk capacity levels. By using the disclosure, hard disk capacity heterogeneousness in massive storage is supported.

Abstract: Embodiments of the application disclose a data storage method and a storage server. The method includes: detecting actual usage of a hard disk corresponding to an initial capacity level in configured hard disk capacity levels; when it is determined, according to the detected actual usage, that the hard disk corresponding to the initial capacity level exceeds a limit, searching for a hard disk corresponding to a second highest capacity level and is higher than the initial capacity level; and when the hard disk corresponding to the second highest capacity level is obtained by searching, determining a migration ratio of a virtual node according to the initial capacity level, the second highest capacity level, and the actual hard disk capacity, and performing virtual node migration between hard disks that are corresponding to the configured hard disk capacity levels. By using the disclosure, hard disk capacity heterogeneousness in massive storage is supported.

Abstract: A turning holder enabling an easy operation and a convenient use without the need for repeated mounting and dismounting is provided. The turning holder comprises a base (11), a holder body (12), and a rotary body. A base sleeve (110) is provided on the base (11). A holder sleeve (120) is provided on the holder body (12). The rotary body includes a shaft sleeve (5), a clamping sleeve for rotary shaft (8), a pressure ring (9) and a locking means. The clamping sleeve for rotary shaft (8) is sleeved outside at a groove around an end of the shaft sleeve (5). The holder sleeve (120) is sleeved on the shaft sleeve (5) in a staggered position relative to the clamping sleeve for rotary shaft (8). The base sleeve (110) is sleeved around the clamping sleeve for rotary shaft (8) and fixedly connected therewith. The pressure ring (9) is sleeved around an end of the shaft sleeve (5) and presses the clamping sleeve for rotary shaft (8) from outside.

Abstract: A turning holder enabling an easy operation and a convenient use without the need for repeated mounting and dismounting is provided. The turning holder comprises a base (11), a holder body (12), and a rotary body. A base sleeve (110) is provided on the base (11). A holder sleeve (120) is provided on the holder body (12). The rotary body includes a shaft sleeve (5), a clamping sleeve for rotary shaft (8), a pressure ring (9) and a locking means. The clamping sleeve for rotary shaft (8) is sleeved outside at a groove around an end of the shaft sleeve (5). The holder sleeve (120) is sleeved on the shaft sleeve (5) in a staggered position relative to the clamping sleeve for rotary shaft (8). The base sleeve (110) is sleeved around the clamping sleeve for rotary shaft (8) and fixedly connected therewith. The pressure ring (9) is sleeved around an end of the shaft sleeve (5) and presses the clamping sleeve for rotary shaft (8) from outside.

Abstract: An eccentric handle device which can be adapted for guiding rails of different sizes includes a base body (3), a pressure block (4), a pull rod (5), a pin (6), an eccentric handle (8) and a nut (1). The base body (3) is matched with the pressure block (4). The rod (5) passes through the base body (3) and the pressure block (4) respectively. One end of the rod (5) is movably connected with the eccentric handle (8) via the pin (6), the other end crosses the base body (3), and the rod is matched with the nut (1) by thread. The distance between the pressure block (4) and the base body (3) can be adjusted by rotating the nut (1), thus the device can be applicable to guiding rails of different sizes. The device can be widely used in the field of firearm aimer.