Abstract: Disclosed is an industrial vehicle, which includes a handle (32), a main vehicle frame (2), and a drive wheel assembly (33), a vertical column (1) being mounted on the main vehicle frame (2), the vertical column (1) comprising an upper top plate (11) and a back plate (13) connected to the upper top plate (11); the industrial vehicle also includes a controller (52), a pump station (53), and a jacking device (51) that abuts against the upper top plate (11); in the horizontal direction, the jacking device (51) is farther from the handle (32) than the drive wheel assembly (33). The foregoing industrial vehicle has high stability and stable lifting, optimizes the positional relationships of each component of the vehicle, and has a shorter vehicle body, such that a smaller turning radius is thus obtained.

Abstract: A protection circuit for short circuit of LED power supply includes a constant voltage source powered by the LED power supply, a constant current source powered by the LED power supply, a switching module for controlling the constant current source to turn off or turn on, and an output current detecting module for controlling the switching module to turn off or turn on. The constant current source is provided in parallel with the constant voltage source. The switching module includes a PNP type transistor connected in series to the constant current source. The output current detecting module includes a NPN type transistor, a base of the NPN type transistor being electrically connected to the output terminal of the constant voltage source, an emitter of the NPN type transistor grounding, and a collector of the NPN type transistor being electrically a base of the PNP type transistor.

Abstract: The present disclosure discloses an industrial vehicle driving in four directions and a traveling mechanism for the industrial vehicle. The traveling mechanism for the industrial vehicle driving in four directions comprises four wheel sets at bottom of the vehicle body, the wheel sets are sequentially connected to form a quadrangle; one wheel set is a rotating wheel set, another wheel set is a reversible directional wheel set, and the axis direction of the rotating wheels is switched between two directions through the rotating action of a rotating shaft of the wheel set; the other two wheel sets are variable-state wheel sets, and the rotating wheel state are switched between a directional state and a follow-up universal state. The present disclosure has simple structure, low cost, good supporting stability, and usage range, usage efficiency and maneuvering capability of the industrial vehicle are facilitated.

Abstract: A protection circuit for short circuit of LED power supply includes a constant voltage source powered by the LED power supply, a constant current source powered by the LED power supply, a switching module for controlling the constant current source to turn off or turn on, and an output current detecting module for controlling the switching module to turn off or turn on. The constant current source is provided in parallel with the constant voltage source. The switching module includes a P-typed triode connected in series to the constant current source. The output current detecting module includes a N-typed triode, a base of the N-typed triode being electrically connected to the output terminal of the constant voltage source, an emitter of the N-typed triode grounding, and a collector of the N-typed triode being electrically a base of the P-typed triode.

Abstract: The present disclosure discloses an industrial vehicle driving in four directions and a traveling mechanism for the industrial vehicle. The traveling mechanism for the industrial vehicle driving in four directions comprises four wheel sets at bottom of the vehicle body, the wheel sets are sequentially connected to form a quadrangle; one wheel set is a rotating wheel set, another wheel set is a reversible directional wheel set, and the axis direction of the rotating wheels is switched between two directions through the rotating action of a rotating shaft of the wheel set; the other two wheel sets are variable-state wheel sets, and the rotating wheel state are switched between a directional state and a follow-up universal state. The present disclosure has simple structure, low cost, good supporting stability, and usage range, usage efficiency and maneuvering capability of the industrial vehicle are facilitated.

Abstract: A position control method, a position control device and an electric device and an electric device including the position control device are provided. The position control device includes a common motor (13), a performing unit (20) coupled to the motor to perform position change, a pulse generator (10) generating alterable pulse signals, a process unit (11) continuously collecting and processing the pulse signals and generating pulse width modulated signals, a coupling circuit (12) which connects the processing unit and the common motor and sends the pulse width modulated signals to the motor, the common motor receiving and performing the pulse width modulated signals and driving the performing unit to change its position. The position control device can perform real time open-loop control of position change.

Abstract: A bench-top power tool having at least one movement-adjusting motor for driving movable part unit is described. The bench-top power tool comprises a base unit, a movable part unit, a primary motor and a movement-adjusting motor. The movable part unit connected to the base unit is capable of moving in relation to the base unit. The primary motor connected to the base unit is used to rotate a blade for cutting a workpiece. The movement-adjusting motor connected to the base unit and controlled with an open control mechanism drives the movable part unit to generate a relative motion in relation to the base unit.

Abstract: A method of oxidation or pathogen inactivation in water supplies using the combination of treatments of chlorine dioxide and ozone in the sequential steps prior to filtration and distribution. Results indicate that the addition of chlorine dioxide before prezonation reduces the bromate formation and chlorine dioxide can be substituted for preoxidation with ozone, while maintaining the enhanced filtration effects observed from the presence of a preoxidant. A majority of the chlorite formed from reactions of chlorine dioxide with constituents in raw water are converted to chlorate by the following ozonation step.

Abstract: A method of oxidation or pathogen inactivation in water supplies using the combination of treatments of chlorine dioxide and ozone in the sequential steps prior to filtration and distribution. Results indicate that the addition of chlorine dioxide before prezonation reduces the bromate formation and chlorine dioxide can be substituted for preoxidation with ozone, while maintaining the enhanced filtration effects observed from the presence of a preoxidant. A majority of the chlorite formed from reactions of chlorine dioxide with constituents in raw water are converted to chlorate by the following ozonation step.