Abstract: A bag dispensing apparatus and a bag dispensing system are disclosed. The bag dispensing apparatus includes a housing, a bag retaining mechanism, and a bag locking mechanism. A roll of bags is stored in the bag dispensing apparatus and a leading bag of the roll of bags can be directly hanged on the bag dispensing apparatus for use. The storage and use of the bags are cleverly integrated to save the space, and the operation is more convenient.

Abstract: Disclosed is an extension tube-type vehicle-mounted back support comprising a mounting rod and a mounting part mounted on the mounting rod and used for fixing a mobile terminal. The mounting rod comprises a connector and two connection tubes respectively connected to the left and right ends of the connector, wherein outer ends of the two connection tubes are both connected to a clamping part, an extension spring is provided inside at least one of the connection tubes, and the corresponding clamping part is arranged in a manner of shifting to the left and right relative to the connection tube with the action of the extension spring. The overall structure of the mounting rod is simple and compact and has good stability. By designing the mounting rod as an elastically extending structure, the mounting rod can be directly installed on a vehicle seat headrest metal rod.

Abstract: A parallelogram linkage automatic clamping holder includes a rear base, a bottom support arm, a left clamping arm, a right clamping arm, and a return elastic member. When in use, the bottom support arm is moved downward by the weight of a mobile phone. By the deformation principle of the parallelogram, clamping parts move inward obliquely upward to clamp the mobile phone automatically. The clamping surfaces of the clamping parts don't have an angle change to ensure that the mobile phone has a larger contact surface with the clamping surfaces, providing a better clamping effect.