It is disclosed a laser marking apparatus provided with a protection shield, comprising a support frame (T) of a working deck (2) and wherein, around said working deck, a protection shield is arranged which fully encircles the working area of said laser marking head (4) and provided with at least partly perimetrally upright arranged panels with respect to said working deck, wherein said panels (P1-P8) are mounted movable from a lower position, wherein said shield encircles said support frame (T) up to a height completely below or flush with the upper surface of said working deck (2), to an upper extended position wherein said shield encircles the area above said working deck (2) up to a working height of said laser marking head (4).

It is disclosed a laser marking apparatus provided with a protection shield, comprising a support frame (T) of a working deck (2) and wherein, around said working deck, a protection shield is arranged which fully encircles the working area of said laser marking head (4) and provided with at least partly perimetrally upright arranged panels with respect to said working deck, wherein said panels (P1-P8) are mounted movable from a lower position, wherein said shield encircles said support frame (T) up to a height completely below or flush with the upper surface of said working deck (2), to an upper extended position wherein said shield encircles the area above said working deck (2) up to a working height of said laser marking head (4).

The construction of rapid opening thermally insulated roller doors is challenging in that there are both structural and operational challenges. The door blades need to have structural strength, and also need to have dimensional stability. Disclosed is a thermally insulated roller door blade in which at least the material forming the outer surface is able to resist the tensile loads during retraction, and the blade is provided with flexible spacer strips that help the primary insulating material of the door blade to maintain dimensional stability, primarily by helping to resist crushing. This allows softer materials to be used for thermal insulation than previously used, helping to reduce weight and to improve thermal efficiency, while at the same time allowing smooth and repeatable operation even when exposed to freezing temperatures for long periods.

A load control system automatically controls the amount of daylight entering a building through at least one window of a non-linear façade of the building. The load control system comprises at least two motorized window treatments located along the non-linear façade, and a system controller. The controller is configured to calculate an optimal position for the motorized window treatments at each of a plurality of different times during a subsequent time interval using at least two distinct façade angles of the non-linear façade, such that a sunlight penetration distance will not exceed a maximum distance during the time interval. The controller is configured to use the optimal positions to determine a controlled position to which both of the motorized window treatments will be controlled during the time interval and to automatically adjust each of the motorized window treatments to the controlled position at the beginning of the time interval.

A cordless roller shutter structure includes a roller shutter fixing seat, a sleeve controller, a tension adjuster and a shutter sheet locating unit. The sleeve controller is fitted in a sleeve and securely disposed on the roller shutter fixing seat. The shutter sheet is controlled to suspend downward or roll upward directly by means of pulling and releasing the lower weight of the shutter sheet without using the bead chain. A bearing is received in each of two collars so that the sleeve can more easily drive the shutter sheet to save strength. In addition, by means of the adjustment disc of the tension adjuster and the shutter sheet locating unit, the ascending/descending speed of the shutter sheet can be adjusted and the sunshade position of the shutter sheet can be locked. Accordingly, the utility and effect of the cordless roller shutter are enhanced.

An automatic roller shutter for animals includes a door frame, a roller shutter body, a driving motor, an accumulator, a solar panel, a controller, a display screen and a front housing. The roller shutter body is slidably configured on the door frame, and the driving motor is configured on the door frame and electrically connected with the controller to drive the roller shutter body to retract or extend; the controller is provided with control buttons; a front side of the front housing is provided with a first opening and a second openings, the display screen is exposed through the first opening, and the control buttons are exposed through the second openings; and the solar panel is arranged the front housing. The roller shutter has high integration, compact structure, convenient assembly and transportation.

An automatic roller shutter for animals includes a door frame, a roller shutter body, a driving motor, an accumulator, a solar panel, a controller, a display screen and a front housing. The roller shutter body is slidably configured on the door frame, and the driving motor is configured on the door frame and electrically connected with the controller to drive the roller shutter body to retract or extend; the controller is provided with control buttons; a front side of the front housing is provided with a first opening and a second openings, the display screen is exposed through the first opening, and the control buttons are exposed through the second openings; and the solar panel is arranged the front housing. The roller shutter has high integration, compact structure, convenient assembly and transportation.

A door operator with high-speed operation and fire escape functions comprises a motor, a high-speed centrifugal brake module, a centrifugal reduction module, a central shaft locking module and a first and second clutch module. In the stationary state, the high-speed centrifugal brake module, centrifugal reduction module and central shaft locking module are connected to each other, and the drive shaft of the motor is locked by the central shaft locking module. In the normal operation, the first clutch module disengages the high-speed centrifugal brake module from the centrifugal reduction module, and the drive shaft is rotatable at high speed. In the event of fire escape, the second clutch module disengages centrifugal reduction module from central shaft locking module, and the drive shaft rotates at a lower speed. The device will provide high-speed rotation under normal operation, and automatically close the door panel at a gradually lowered speed in the event of fire escape.

It is disclosed a laser marking apparatus provided with a protection shield, comprising a support frame (T) of a working deck (2) and wherein, around said working deck, a protection shield is arranged which fully encircles the working area of said laser marking head (4) and provided with at least partly perimetrally upright arranged panels with respect to said working deck, wherein said panels (P1-P8) are mounted movable from a lower position, wherein said shield encircles said support frame (T) up to a height completely below or flush with the upper surface of said working deck (2), to an upper extended position wherein said shield encircles the area above said working deck (2) up to a working height of said laser marking head (4).

It is disclosed a laser marking apparatus provided with a protection shield, comprising a support frame (T) of a working deck (2) and wherein, around said working deck, a protection shield is arranged which fully encircles the working area of said laser marking head (4) and provided with at least partly perimetrally upright arranged panels with respect to said working deck, wherein said panels (P1-P8) are mounted movable from a lower position, wherein said shield encircles said support frame (T) up to a height completely below or flush with the upper surface of said working deck (2), to an upper extended position wherein said shield encircles the area above said working deck (2) up to a working height of said laser marking head (4).