A collapsible mobile bench has a work surface that has opposed ends and a middle section. The opposed ends are wider than the middle section. The middle section is adapted to receive a tool. The work surface is adjustable between collapsed and raised positions, with the work surface being positionable at infinite positions between the collapsed and raised positions. A set of wheels are mounted to the work surface for transportation of the work bench. The work surface can be used as a work bench or a tool support and collapsed for transport and raised to a desired height for use.

The present disclosure discloses an automatic leveling control method for a four-leg support working platform, which comprises the steps: determining the mass center position of the working platform, determining the main bearing quadrant and distinguishing active legs from the driven leg; adjusting the driven leg to weak state, controlling all legs to synchronously actuate for leveling; calculating the limit compensating actuation length of the driven leg, and performing compensating actuation until accomplishing the leveling process. The method is advantageous in: high speed, high robustness, no repeated oscillation. The mass center always stays within the bearing zone of the active legs, thus completely eliminating capsizing risk of the working platform. The compensating actuation of the driven leg ensures there is no weak leg, and hence high attitude and load-bearing stability of the working platform is achieved.

A collapsible desk system including a first and second elongate members, a seat, a diagonal support member, a column, a pivot assembly, and a desk top is provided. The first and second elongate members have a common central pivot, and are pivotal relative to one another in a scissor-like manner. Each elongate member has a support member for resting on an underlying surface and an end. The seat is attached to the end of the first elongate member. The diagonal support member is cooperable with the first and second elongate members to selectively retain the elongate members in one or more crossed orientations. The column has upper and lower ends. The lower end is pivotally attached to the end of the second elongate member.

A collapsible desk system including a first and second elongate members, a seat, a diagonal support member, a column, a pivot assembly, and a desk top is provided. The first and second elongate members have a common central pivot, and are pivotal relative to one another in a scissor-like manner. Each elongate member has a support member for resting on an underlying surface and an end. The seat is attached to the end of the first elongate member. The diagonal support member is cooperable with the first and second elongate members to selectively retain the elongate members in one or more crossed orientations. The column has upper and lower ends. The lower end is pivotally attached to the end of the second elongate member.

A reinforcing arrangement for reinforcing a joint portion between two support units of a foldable furniture object, comprising a first mounting unit which comprises a first mounting body and a first guiding member outwardly protruded from the first mounting body mounting on the first support unit; a second mounting unit which comprises a second mounting body and a second guiding member or a second guiding groove complimentary to and moveably engaging with the first mounting unit to define a maximum extending angle of movement, thereby the first and second support unit are guided to lock into position at an unfolded position at the maximum extending angle and to unlock at a folded position; and a connecting unit pivotally connecting the first support unit and the second support unit between which the two mounting units are positioned, thereby the joint portion is reinforced.

A reinforcing arrangement for reinforcing a joint portion between two support units of a foldable furniture object, comprising a first mounting unit which comprises a first mounting body and a first guiding member outwardly protruded from the first mounting body mounting on the first support unit; a second mounting unit which comprises a second mounting body and a second guiding member or a second guiding groove complimentary to and moveably engaging with the first mounting unit to define a maximum extending angle of movement, thereby the first and second support unit are guided to lock into position at an unfolded position at the maximum extending angle and to unlock at a folded position; and a connecting unit pivotally connecting the first support unit and the second support unit between which the two mounting units are positioned, thereby the joint portion is reinforced.

The present invention relates to a collapsible portable table having a top, two pivot frames, a center leg frame and two outer legs. An end support is at each end of a lower surface of the top. A center support is centrally aligned on the lower surface and two pivot supports are provided. Each of the pivot frames is pivotally connected to one of the pivot supports. The center leg frame is pivotally connected to one pivot frame. The outer legs are pivotally connected to the other pivot frame. The pivot supports pivot approximately 180 degrees relative to the table top. The legs can be in a storage position wherein they are generally parallel to the table top. The legs can also be in a deployed position wherein the respective distal ends of the legs are separated by a distance with a midpoint generally aligned with a top midpoint.

A foldable desk includes a tabletop, two outer legs, and two inner legs. An outer leg connecting rod and an inner leg connecting rod are connected to upper ends of the two outer legs and the two inner legs, respectively. Each of the two outer legs is rotatably connected to a one of the two inner legs in an X-structure. The tabletop is located between the two outer legs, and a front end of a bottom surface of the tabletop is disposed with a buckle configured to be buckled to the inner leg connecting rod when the foldable desk is unfolded for use. The two outer legs or the two inner legs are telescopic, and the tabletop is configured to be placed horizontally or switched to be placed in a state in which a front of the tabletop is lower than a rear of the tabletop.

A foldable desk includes a tabletop, two outer legs, and two inner legs. An outer leg connecting rod and an inner leg connecting rod are connected to upper ends of the two outer legs and the two inner legs, respectively. Each of the two outer legs is rotatably connected to a one of the two inner legs in an X-structure. The tabletop is located between the two outer legs, and a front end of a bottom surface of the tabletop is disposed with a buckle configured to be buckled to the inner leg connecting rod when the foldable desk is unfolded for use. The two outer legs or the two inner legs are telescopic, and the tabletop is configured to be placed horizontally or switched to be placed in a state in which a front of the tabletop is lower than a rear of the tabletop.