Abstract: A display screen support holder is provided, including a stand, a screen connecting base, and a constant force spring; wherein the screen connecting base is pivotally connected with the stand and configured to be connected with a display; after a display screen is mounted to the screen connecting base, a gravity center of combined gravity of the display screen and the screen connecting base is set to be deviated from a screen rotation center of the screen connecting base; two ends of the constant force spring include a moving end and a swinging end, the moving end is movably arranged on the stand, and the swinging end is swingably and pivotally connected with the screen connecting base. In the process of swinging of the display screen, the spring torque generated by the constant force spring and the screen torque are always kept equal in magnitude and opposite in direction.

Abstract: A display screen support holder is provided, including a stand, a screen connecting base, and a constant force spring; wherein the screen connecting base is pivotally connected with the stand and configured to be connected with a display; after a display screen is mounted to the screen connecting base, a gravity center of combined gravity of the display screen and the screen connecting base is set to be deviated from a screen rotation center of the screen connecting base; two ends of the constant force spring include a moving end and a swinging end, the moving end is movably arranged on the stand, and the swinging end is swingably and pivotally connected with the screen connecting base. In the process of swinging of the display screen, the spring torque generated by the constant force spring and the screen torque are always kept equal in magnitude and opposite in direction.

Abstract: A multilayer wind spring for a display support and a lifting support thereof, the multilayer wind spring is formed by winding a plurality of tightly attached elastic metal sheets, wherein each of the elastic metal sheets comprises a stretching connection portion, a movable sheet portion and an unmovable wound portion, part or all of the elastic metal sheets are provided with a semi-restricted structure which is provided to have a movement allowance in an unwinding or winding direction of the elastic metal sheets, and in an unwinding or winding process of the multilayer wind spring, the stretching connection portion of the elastic metal sheets provided with the semi-restricted structure is arranged to be slidable within a range of the movement allowance relative to a connected component.

Abstract: A multilayer wind spring for a display support and a lifting support thereof, the multilayer wind spring is formed by winding a plurality of tightly attached elastic metal sheets, wherein each of the elastic metal sheets comprises a stretching connection portion, a movable sheet portion and an unmovable wound portion, part or all of the elastic metal sheets are provided with a semi-restricted structure which is provided to have a movement allowance in an unwinding or winding direction of the elastic metal sheets, and in an unwinding or winding process of the multilayer wind spring, the stretching connection portion of the elastic metal sheets provided with the semi-restricted structure is arranged to be slidable within a range of the movement allowance relative to a connected component.

Abstract: A multilayer wind spring for a display support and a lifting support thereof, the multilayer wind spring is formed by tightly attaching and winding multiple elastic metal sheets, each of the elastic metal sheets comprises: a stretching connection portion which is not involved in winding and unwinding and is always kept in an initial state, a movable sheet portion which is involved in winding and unwinding, and an unmovable wound portion which is not involved in stretching and is always kept in a wound state, the stretching connection portion, the movable sheet portion, and the unmovable wound portion are formed integrally and sequentially arranged in an unwinding direction, and the elastic metal sheets of the unmovable wound portions are arranged fixedly relative to one another.