A variable height platform system comprises a frame assembly, at least two leg assemblies, a drive mechanism, and a sensor. The frame assembly is configured to support and be removably connected to a tabletop. The drive mechanism is configured to either extend or retract each leg assembly in a direction substantially perpendicular to the longitudinal axis to set a height of the frame assembly in an elevated position for use. The sensor is configured to sense position and movement of a user in a predetermined area including an area of the variable height platform system and an area proximate the variable height platform system. The controller is operatively connected to the sensor and drive mechanism. The controller is configured to operate the drive mechanism in response to the sensor sensing the position and movement of the user in the predetermined area.

A variable height platform system comprises a frame assembly, at least two leg assemblies, a drive mechanism, and a sensor. The frame assembly is configured to support and be removably connected to a tabletop. The drive mechanism is configured to either extend or retract each leg assembly in a direction substantially perpendicular to the longitudinal axis to set a height of the frame assembly in an elevated position for use. The sensor is configured to sense position and movement of a user in a predetermined area including an area of the variable height platform system and an area proximate the variable height platform system. The controller is operatively connected to the sensor and drive mechanism. The controller is configured to operate the drive mechanism in response to the sensor sensing the position and movement of the user in the predetermined area.

The present invention relates to an adjustable height table base with a transport mechanism, and in particular to a transport mechanism selectably operable in a grounded position, a low transport position and a high transport position. The table has a base that is adjustable in length with a crank. A top is supported by a table frame, which allows the top to be locked in a horizontal or vertical position. Four legs can be provided each having a pad at a distal end. A transport mechanism is also provided. The transport mechanism has a caster assembly with four casters and has an extension assembly that is extendable along its longitudinal axis to move that table between the grounded position, low transport position and high transport position. The extension assembly is operable under force of gravity and used by lifting or tilting anywhere radially about the table at selected distances.

A telescopic tube assembly includes an outer tube and an inner tube which is telescopically inserted in the outer tube. A first stabilizing unit and a second stabilizing unit respectively located in a gap between the inner and outer tubes to make the inner tube stably moved relative to the outer tube. The first stabilizing unit includes two plates. The outer surface of each of the two plates 31 is in contact with the inner surface of the outer tube, and the inner surface of each of the two plates is in contact with the outer surface of the inner tube. The inner tube is easily assembled to the outer tube by the first and second stabilizing units.

A height adjusting device is disclosed. The height adjusting device includes a supporting foot and a lifting nut coupled to the supporting foot. The device also includes a lifting rod coupled to the lifting nut by a threaded interaction. Further, the device includes a first mechanical combination of: a fixing plate coupled to the lifting nut and having a threaded aperture therethrough; a screw threaded through the threaded aperture and having a first screw end and a second screw end; a knob coupled to the first screw end; and a latching tooth coupled to the second screw end. Further still, the device includes a second mechanical combination like the first mechanical combination of the fixing plate, the screw, the knob, and the latching tooth. The fixing plate of the second mechanical combination is positioned at a different orientation than the first mechanical combination relative to the lifting nut.

An adjustable table leg includes a leg outer pipe, a leg middle pipe, a lead screw outer pipe, a lead screw inner pipe, an outer lead screw, an inner lead screw, an outer lead screw nut, an inner lead screw nut, a motor casing, and a drive motor. Thereby, the upward and downward transmission is more stable, the stress of the inner lead screw nut and the outer lead screw nut is more uniform, the fatigue degree is reduced, and the service life is increased. In particular, its structural design is ingenious, the overall layout is reasonable, and the installation is simple.

An adjustable table leg includes a leg outer pipe, a leg middle pipe, a lead screw outer pipe, a lead screw inner pipe, an outer lead screw, an inner lead screw, an outer lead screw nut, an inner lead screw nut, a motor casing, and a drive motor. Thereby, the upward and downward transmission is more stable, the stress of the inner lead screw nut and the outer lead screw nut is more uniform, the fatigue degree is reduced, and the service life is increased. In particular, its structural design is ingenious, the overall layout is reasonable, and the installation is simple.

A height-adjustable multifunctional table includes a base, at least two independent and height-adjustable table legs, a retaining frame, a tabletop, a power adapter, a controller, and a hand controller. Through the wireless connection between the hand controller and the controller, the controller is used to control a driving mechanism, and the driving mechanism drives a movable inner tube to move up and down so as to adjust the height of a tabletop. The user only needs to control the hand controller to adjust the height of the tabletop. The height adjustment is easy and more convenient and saves time and labour.

A height-adjustable multifunctional table includes a base, at least two independent and height-adjustable table legs, a retaining frame, a tabletop, a power adapter, a controller, and a hand controller. Through the wireless connection between the hand controller and the controller, the controller is used to control a driving mechanism, and the driving mechanism drives a movable inner tube to move up and down so as to adjust the height of a tabletop. The user only needs to control the hand controller to adjust the height of the tabletop. The height adjustment is easy and more convenient and saves time and labour.

An electric lifting frame includes a lifting pedestal and a remote control. The lifting pedestal includes a supporting base, a lifting rod detachably connected to the supporting base, and a transmission mechanism, a motor, a controller, and a power supply provided at the lifting rod. The motor is configured to effect extension and retraction of the lifting rod via the transmission mechanism. The controller is configured to control starting and stopping and a rotation direction of the motor. The power supply is configured to supply electric energy to the motor and the controller. The controller is further configured to determine a remaining capacity of the power supply and calculate a number of remaining available times of use according to the remaining capacity, a power of the motor, and a stroke of the transmission mechanism.