Abstract: A telescopic module includes a first tube, a second tube, a holder, and a plurality of rollers. The first tube has a passageway. The second tube is received in the passageway of the first tube for reciprocation. The holder is mounted on the first tube. The rollers are pivoted on the holder to rest against the second tube or the first tube, or both to touch an inner side of the first tube and an outer side of the second tube to be turned when the second tube is moving.

Abstract: A height adjustable desk includes a work surface, a first telescoping leg, a second telescoping leg, a driving device, and a switch device. The first telescoping leg and the second telescoping leg are connected to the work surface, and are driven by the driving device to lift or low the work surface to any desired height. The switch device is mounted on the first telescoping leg to be activated when the work surface is moved to a predetermined position. The switch device will turn the motor off to stop the work surface when the switch device is activated.

Abstract: A pressure adjusting device of a quick fixture includes a main member, a fixed member fixed to the main member, a movable member movably connected to the main member, and an elastic member received in the main member and having opposite end connected to the fixed member and the movable member to urge the movable member. With the pressure adjusting device the quick fixture can fix various workpieces with different thicknesses.

Abstract: A telescopic module includes a first tube having a passageway therein; a second tube received in the passageway of the first tube for reciprocation; a hub connected to the second tube; a roller pivoted on the hub to touch the inner side of the first tube; and an adjusting member. The hub is provided with an expanding hole and flexible portions. The roller is pivoted on the flexible portion, and the adjusting member is inserted into the expanding hole and abuts against the flexible portions to move the roller outwardly.

Abstract: A workstation includes a partition unit to form a workspace, in which a desk board, two pneumatic devices and a synchronizing device are provided. Each of the pneumatic devices has a fixed section and a movable section while the fixed section is fixed to the partition unit and the movable section is connected to desk board to lift and lower the desk board. The synchronizing device is connected to the pneumatic devices to synchronize movements of the pneumatic devices.

Abstract: A desk includes a base and a work surface assembly mounted on the base. The work surface assembly has a board and a leg having opposite ends connected to the board and the base. The leg has an inclined section and a straight section, and the board has a first end and a second end opposite to the first end. A distance between the first end of the board and the straight section of the leg is greater than that of between the second end of the board and the straight section of the leg. The boards of the work surface assemblies are arranged in a row or two rows of a matrix. Therefore, the work surface assemblies are combinative to be mounted on the base to have various layouts of the boards.

Abstract: A desk includes a base and a plurality of work surface assemblies mounted on the base. The base has a shaft and two stand connected to opposite ends of the shaft. Each of the work surface assemblies has a board and a leg having opposite ends connected to the board and the shaft of the base respectively. The shaft has a plurality of shaft sections connected in series. Whereby a user may pick a predetermined number of shaft sections in serial connection according to a number and a pattern of the work surface assemblies to be mounted on the shaft.

Abstract: A height adjustable desk includes a worksurface, a first leg and a second leg connected to the worksurface. The first leg is provided with a first motor to drive a first lifting apparatus for telescoping the first leg, while the second leg is provided with a second motor to drive a second lifting apparatus for telescoping the second leg. Each of the first motor and the second motor is provided with a magnetic device and two sensors. The magnetic device has several N-pole sections and S-pole sections, and the sensor detect a change of a magnetic field when the motor is turning. A control unit receives the signals of the sensor, and changes a speed of at least one of the motors until the signals are synchronous again when the control unit found that the signals are not synchronous.

Abstract: A lifting device for lifting a table includes two legs, each of the legs includes a pneumatic assembly and an inner rod, the pneumatic assemblies are disposed in the legs, and the inner rods are inserted in the legs and connected to the pneumatic assemblies, so that the pneumatic assemblies drive the inner rods to move up and down. A synchronization mechanism is disposed between the two legs, and has two ends connected to the inner rods by two connecting assemblies, so that the inner rods are driven by the synchronization mechanism to lift or lower the tabletop in a synchronous manner, the synchronization mechanism includes: a cable control unit and a clutch unit controlled by the cable control unit, the cable control unit includes a control handle and a cable which is disposed at the bottom of the tabletop.