Abstract: A supporting stand having a lifting and positioning means includes a support, a sliding body, and a base. The sliding body has a swinging rode and is movably provided in the support. The base is connected to the support. The support has an elastic recovering means and a return path means. One end of the elastic recovering means is connected to the support, while the other end thereof is connected to the sliding body. The elastic recovering means provides a force for automatic recovery. The swinging rod is located above the return path means. In use, with the vertical movement of the sliding body in the support and the cooperation of the swinging rod and the return path means, the height of the supporting stand can be adjusted according to the user's demand. Via aforementioned arrangement, a supporting stand with no tenons on its external surface can be formed.

Abstract: A height-adjustable support includes a stand unit, a friction-providing assembly including a stationary member disposed stationarily on the stand unit and a movable member movable relative to and in frictional contact with the stationary member, a link assembly coupled to the movable member such that pivoting movement of the link assembly results in movement of the movable member relative to the stationary member, a mounting seat disposed on a distal end portion of the link assembly and adapted to support a load, and a biasing assembly coupled to the movable member and to the stand unit. A biasing force exerted by the biasing assembly on the movable member and a frictional force generated between the stationary member and the movable member cooperate to balance the weight of the load and position the link assembly to sustain the load at an arbitrary height.

Abstract: A bracket with a horizontal displacement compensation capacity includes a base, a sliding stand, an elastic element, a displacement compensation linkage assembly, and a support body. The sliding stand slides on the base. Both ends of the elastic element are respectively fixed to the base and the sliding stand. The displacement compensation linkage assembly includes a first rod, a second rod and an abutting piece. The rods are for connecting to the base and the sliding stand. The abutting piece is pivotally connected to the pivoting portion between the other ends of the first and second rods. Via the above arrangement, when the support body is swinging, a displacement compensation action can be generated in the horizontal direction, so that the viewing distance between a supported article and a user can be kept constant. Furthermore, the vertical height can be adjusted and the horizontal distance can be kept simultaneously.