Abstract: The present utility model relates to a graphite furnace locking device, comprising: a stationary part which is provided with a locking unit, a movable part which is arranged along a first direction facing the stationary part, the movable part being provided with a latch bolt unit; wherein, the movable part may move towards the stationary part along the first direction until the latch bolt unit and the locking unit are connected and then the locking device is in a locked state; the latch bolt unit provides a first elastic force for the movable part towards the direction of the stationary part; the locking unit is used to disconnect from the latch bolt unit, and then the locking device is in an unlocked state; the latch bolt unit provides a second elastic force for the movable part in a direction away from the stationary part, and the movable part can move away from the stationary part in the first direction under the action of the second elastic force to its initial position.

Abstract: The present invention relates to an autosampler. The autosampler includes a sampling needle, a swing arm, a main shaft, a synchronous rotating pulley, and a rotating shaft sleeve. One end of the swing arm is fixed to the main shaft, and the other end thereof is fixed with the sampling needle for supplying a sample. The rotating shaft sleeve is installed in the synchronous rotating pulley, and the rotating shaft sleeve is mounted on the main shaft. The main shaft can rotate around the central axis of the main shaft in synchronization with the rotating shaft sleeve, and can move up and down in the direction of the central axis with respect to the rotating shaft sleeve. The autosampler is characterized in that it further includes a contact member. The contact member penetrates the synchronous rotating pulley and the rotating shaft sleeve from one side of the synchronous rotating pulley in the radial direction thereof until it comes into contact with the main shaft.

Abstract: The present utility model relates to a graphite furnace locking device, comprising: a stationary part which is provided with a locking unit, a movable part which is arranged along a first direction facing the stationary part, the movable part being provided with a latch bolt unit; wherein, the movable part may move towards the stationary part along the first direction until the latch bolt unit and the locking unit are connected and then the locking device is in a locked state; the latch bolt unit provides a first elastic force for the movable part towards the direction of the stationary part; the locking unit is used to disconnect from the latch bolt unit, and then the locking device is in an unlocked state; the latch bolt unit provides a second elastic force for the movable part in a direction away from the stationary part, and the movable part can move away from the stationary part in the first direction under the action of the second elastic force to its initial position.

Abstract: The present invention relates to an autosampler. The autosampler includes a sampling needle, a swing arm, a main shaft, a synchronous rotating pulley, and a rotating shaft sleeve. One end of the swing arm is fixed to the main shaft, and the other end thereof is fixed with the sampling needle for supplying a sample. The rotating shaft sleeve is installed in the synchronous rotating pulley, and the rotating shaft sleeve is mounted on the main shaft. The main shaft can rotate around the central axis of the main shaft in synchronization with the rotating shaft sleeve, and can move up and down in the direction of the central axis with respect to the rotating shaft sleeve. The autosampler is characterized in that it further includes a contact member. The contact member penetrates the synchronous rotating pulley and the rotating shaft sleeve from one side of the synchronous rotating pulley in the radial direction thereof until it comes into contact with the main shaft.