A seating structure includes a frame, a carrier, and a suspension material. The frame includes first and second side frame members and first and second cross frame members forming a closed loop and defining an opening therebetween. The frame also includes a plurality of first attachment features on an outer perimeter of the frame. The carrier includes first and second side carrier members and first and second cross carrier members that form a closed loop. The carrier also includes a plurality of second attachment features on an inner perimeter of the carrier. The plurality of second attachment features engages the plurality of first attachment features to attach the carrier to the frame. The suspension material is attached to the carrier and extends over the opening in the frame to define a continuous seat and backrest.

An electrically controlled chassis includes: a chassis body; an electrical control box, internally provided with an accommodation space; a drive motor, configured to control lift adjustment of the chassis of the chair and pitch adjustment of a backrest of the chair; a winding mechanism, connected to an output shaft of the drive motor; a first pull cord, reversely wound on the winding mechanism; a second pull cord, normally wound on the winding mechanism; a backrest adjustment mechanism, disposed on the chassis body, and fixedly connected to the other end of the first pull cord; and a chassis lift mechanism, disposed on the chassis body, and fixedly connected to the other end of the second pull cord.

A quick-release device is for securing a rod of any gas cylinder into the plate of any chair, item of furniture, or other device supported by a gas cylinder and activating the rod with a button thereon. This universal quick-release device includes a sleeve in in the seat plate, an adapter fit into the sleeve, the adapter including an upper portion and a lower portion with different inner and outer diameters. The sleeve is configured to receive the lower portion of the adapter in a press-fit engagement. The upper portion is configured to receive the rod of the gas cylinder in a removable engagement.

A ball chair may comprise a chair frame, a ball body and an adjusting unit. The chair frame has a connecting base and a legs base, and a supporting column formed therebetween is configured to achieve a telescopic action thereby adjusting a height of the ball chair. The connecting base is formed in a concave shape to form a housing space therein, and an annular frame is formed at an upper end of the connecting base. The ball body is configured to be coupled on the connecting base of the chair frame, and the annular frame is configured to couple with an outer periphery of the ball body thereby limiting a position thereof. As a result, the ball chair is suitable for different statures of users and enables the users to sit thereon for training or rehabilitation.

A ball chair may comprise a chair frame, a ball body and an adjusting unit. The chair frame has a connecting base and a legs base, and a supporting column formed therebetween is configured to achieve a telescopic action thereby adjusting a height of the ball chair. The connecting base is formed in a concave shape to form a housing space therein, and an annular frame is formed at an upper end of the connecting base. The ball body is configured to be coupled on the connecting base of the chair frame, and the annular frame is configured to couple with an outer periphery of the ball body thereby limiting a position thereof. As a result, the ball chair is suitable for different statures of users and enables the users to sit thereon for training or rehabilitation.

A height adjustable chair is disclosed. The chair is provided with a foldable seat and a base unit supporting a foldable seat. The base unit contains a column enclosing a hydraulic pump and a pair of collars attached to the hydraulic pump. The chair further contains a number of legs attached to one of the collars.

A height adjustable chair is disclosed. The chair is provided with a foldable seat and a base unit supporting a foldable seat. The base unit contains a column enclosing a hydraulic pump and a pair of collars attached to the hydraulic pump. The chair further contains a number of legs attached to one of the collars.

A seating assembly for athletes includes seats having a back and seat portion, a base, an adjustable element, a user interface device, and a controller. The back portion includes a back heating member that provides heat to a user's torso. The seat portion includes a lower limb heating member that provides heat to the user's lower limbs. The base supports each seat. The adjustable element is coupled to the base and one of the seats and adjusts height of the seat. The user interface device receives an input regarding a desired temperature of the back heating member and the lower limb heating member. The controller receives the input and adjusts an operation of the back heating member and the lower limb heating member to achieve the desired temperature. The user interface device receives a second input to adjust the a height of the seat relative to the floor surface.

A seating assembly for athletes includes seats having a back and seat portion, a base, an adjustable element, a user interface device, and a controller. The back portion includes a back heating member that provides heat to a user's torso. The seat portion includes a lower limb heating member that provides heat to the user's lower limbs. The base supports each seat. The adjustable element is coupled to the base and one of the seats and adjusts height of the seat. The user interface device receives an input regarding a desired temperature of the back heating member and the lower limb heating member. The controller receives the input and adjusts an operation of the back heating member and the lower limb heating member to achieve the desired temperature. The user interface device receives a second input to adjust the a height of the seat relative to the floor surface.

A gas cylinder quick release device has a cylindrical upper assembly, a cylindrical lower assembly arranged below the upper assembly on a common axis, and a handle which is mounted to move between a first position and a second position. Movement of the handle from the first position to the second position imparts axial displacement of the upper and lower assemblies away from each other along the axis, thereby breaking a press-fit engagement of a wheelbase otherwise secured on the gas cylinder.