A device that includes a drive roller, in which the cord for the manual control of a mechanism for opening and closing a curtain or blind is partially wound to allow that said mechanism of curtain or blinds can be automated while maintaining the manual control at the same time.

An opening and closing device for curtains and a system based on the same, mounted on a curtain track, comprises a main engine and a roller mechanism, The main engine comprises a shell with a cavity, a driving wheel mounted in the cavity and partially exposed the shell, a motor arranged in the cavity and controlling the driving wheel to rotate, a controller lied in the cavity and controlling the motor to start and stop, and a signal transceiver module coupled electrically with the controller and receiving starting and stopping signals of the motor; the driving wheel is used for driving the curtains to move along the curtain track; a roller mechanism is mounted on the shell, an end, far away from the shell, of the roller mechanism is hung on the curtain track and presses the driving wheel closely on the curtain track.

A telescopic curtain guide rail includes an inner rail, an outer rail and a transmission unit. The inner rail is embedded in the outer rail, the transmission unit includes a driving wheel connected with a motor, a driven wheel, two fixed pulleys and a conveyor belt. The driving wheel and the driven wheel are located at two ends of the curtain guide rail, the two fixed pulleys are respectively located at other ends of the inner rail and outer rail. The driving wheel and one fixed pulley are located at two ends of the inner rail or outer rail, the conveyor belt is wound on the driving wheel, the driven wheel and the two fixed pulleys. A telescopic operation of the curtain guide rail can change positions of the two fixed pulleys simultaneously, and the curtain guide rail is simple to use and has a small occupied area.

Provided is an extendable rail, comprising a main rail and an auxiliary rail arranged in parallel with the main rail, the main rail is shifted in longitudinal direction relative to the auxiliary rail, wherein the main rail is configured with a driving wheel and a first reverse wheel; the auxiliary rail is configured with a second reverse wheel, a first guiding wheel and a second guiding wheel arranged inside; a belt loop with fixed length wraps around the driving wheel, the first reverse wheel, the first guiding wheel, the second reverse wheel, the second guiding wheel, and the driving wheel in turn. The total length of the extendable rail can be adjusted according to the practical needs of consumers by adjusting the length of the overlapped area of the main rail and the auxiliary rail, which provides easy adjustment, high universal applicability and operation performance without size customization.

An electric curtain track structure includes a guiding track assembly, a first actuator, a transmission assembly and a decorative assembly. The guiding track assembly includes a guiding track main body having first and second bending sections opposite from each other. The first actuator is installed on the first bending section. The transmission assembly includes a transmission cable and first hooks. The transmission cable is inserted into the guiding track main body and driven by the first actuator to move along the guiding track main body. The decorative assembly includes a decorative panel and heads. The decorative panel is attached onto an outer side of the guiding track main body, and two ends of the decorative panel protruded out of the guiding track man body for the decorative heads to correspondingly install on an outer side of the first and second bending sections. Consequently, the overall appearance thereof is improved.

Provided is a telescopic rail, comprising a first rail and a second rail slidably arranged relative to each other, two rotating wheels, a belt, a first and a second traction block. When the rail is put into use, loosen the first and the second fixing device to release the belt from the first and the second traction block, then slide the first and the second rail relative to each other till the total length of the rails is qualified for the installation requirement, then tighten the first and the second fixing device to grip the belt by the first and the second traction block, after that cut off the surplus of belt, thus the length of the telescopic rail could be adjusted on-site without preparatory measurements and customizations, which decreases the workload for measurements and improves the efficiency for installation.

A motor driven system for raising and lowering a window covering executes motor ramp trajectory speed control. The motor ramp trajectory limits acceleration of an external motor from the idle (stationary) state to full operating speed, and limits deceleration of the motor from full operating speed back to the idle state. This function reduces stresses on a continuous cord loop drive mechanism. A control system manages solar heating effects in response to sunlight entrance conditions such as system sensor outputs, external weather forecasts, and other data sources. The system automatically opens or close the window covering to increase or decrease admitted sunlight under appropriate conditions. The input interface of the control system includes a visual display and input axis, which are aligned vertically if the window covering mechanism raises and lowers the window covering, and are aligned horizontally if the window covering mechanism laterally opens and closes the window covering.

A device for moving objects by a driving cable. The device features two cable spools enabled to wind and unwind the cable on both sides. A remote cable pulley is arranged for guiding, at a remote location (X), the cable. The cable spools are arranged to exert, by means of constant torque springs, a cable pretension force in a direction (T) contrary to the unwinding direction (U) of the spools. Electric driving means are provided to be coupled either to the one or to the other cable spool, thus causing the cable to move from the one to the other cable spool or reversely, in order to move said one or more objects connected to the cable, or to be disengaged from both cable spools in order to enable manual operation of said one or more objects connected to the cable.

A motor drive system for operating a mechanism for raising and lowering window coverings includes a motor operating under electrical power and an electrically powered drive system. The motor drive system advances a continuous cord loop in response to positional commands from a controller. An input-output device includes a capacitive touch strip that receives user inputs along an input axis, and an LEDs strip aligned with the input axis. A group mode module communicates the positional commands to other motor drive systems within an identified group to operate respective other mechanisms of the other motor drive systems. A set control module enables user calibration of a top position and a bottom position of travel of the window covering. The input-output device extends vertically on the exterior of a housing for the motor drive system, and the housing supports input buttons of the group mode module and the set control module.

The present disclosure relates to a method and a device for adjusting indoor illumination intensity. In the method, a target illumination intensity value is acquired when a target electric appliance is running and the target electric appliance is susceptible to illumination intensity in a room. In the method, a first indoor illumination intensity value in the room is collected, and an indoor illumination intensity adjustment device is controlled according to the first indoor illumination intensity value and the target illumination intensity value. The indoor illumination intensity adjustment device is controlled to change the first indoor illumination intensity value to achieve a second indoor illumination intensity value where the second indoor illumination intensity value conforms to the target illumination intensity value.