Abstract: The disclosure provides a limit device and a robot using the same. The limit device comprises a first connecting member, a transmission rod and a second connecting member. The first connecting member comprising a first main body portion and two first connecting elements. The two first connecting elements are arranged at intervals. The two first connecting elements are respectively connected to the first main body. The transmission rod comprising a first end and a second end. The first end and the second end are arranged at intervals. The first end penetrates through one of the two first connecting elements. The second end penetrates through the other one of the two first connecting element. The second connecting member provided with two indexing buckles. The two indexing buckles are arranged at intervals, each of the indexing buckles comprises a first limiting groove and a second limiting groove.

Abstract: A photo-detecting device includes a first semiconductor layer with a first dopant, a light-absorbing layer, a second semiconductor layer, and a semiconductor contact layer. The second semiconductor layer is located on the first semiconductor layer and has a first region and a second region, the light absorbing layer is located between the first semiconductor layer and the second semiconductor layer and has a third region and a fourth region, the semiconductor contact layer contacts the first region. The first region includes a second dopant and a third dopant, the second region includes second dopant, and the third region includes third dopant. The semiconductor contact layer has a first thickness greater than 50 ? and smaller than 1000 ?.

Abstract: A hinge device (10) for connecting two door panels (12) of a folding door (14) includes two installation strips (26) and a connection strip (28) connecting the two installation strips (26). An installation slot (44) is formed in each installation strip (26) for receiving an inner end (24) of an associated door panel (12). Two toothed portions (50) are respectively formed on the installation strips (26) and mesh with each other. The connection strip (28) includes two shaft portions (62) respectively received in the toothed portions (50). The installation strips (26) are pivotable relative to the connection strip (28) between first and second positions. In the first position, the door panels (12) are unfolded, and the connection strip (28) is covered by the installation strips (26). In the second position, the door panels (12) are folded, and the toothed portions (50) are located inside of the connection strip (28).

Abstract: A hinge device (10) for connecting two door panels (12) of a folding door (14) includes two installation strips (26) and a connection strip (28) connecting the two installation strips (26). An installation slot (44) is formed in each installation strip (26) for receiving an inner end (24) of an associated door panel (12). Two toothed portions (50) are respectively formed on the installation strips (26) and mesh with each other. The connection strip (28) includes two shaft portions (62) respectively received in the toothed portions (50). The installation strips (26) are pivotable relative to the connection strip (28) between first and second positions. In the first position, the door panels (12) are unfolded, and the connection strip (28) is covered by the installation strips (26). In the second position, the door panels (12) are folded, and the toothed portions (50) are located inside of the connection strip (28).

Abstract: A door leaf for a collapsible door comprises two parallel side plates defining a space therebetween, each of the side plates comprising a mounting groove in an inner side thereof for receiving one of two lateral edges of a decorative panel. A positioning plate is mounted between the side plates and comprises a slide strip on each of two lateral sides thereof, each of the slide strips being configured to be slidable along the mounting groove of an associated one of the side plates. A transverse member is securely attached to an inner end of the positioning plate and comprises an insertion groove for receiving an end of the decorative panel. In another embodiment, the space between the side plates is separated by a transverse member into two subspaces for receiving two decorative panels.

Abstract: A collapsible door assembly includes first and second jambs secured to two opposite walls. A fixing strip is secured to the first jamb. A first track-fixing member is mounted on an end of the first jamb. A second track-fixing member is mounted on an end of the second jamb. A track is securely mounted between the first track-fixing member and the second track-fixing member. A number of door leaves are mounted between the fixing strip and the second jamb. Each two adjacent door leaves are pivotable one relative to the other. Each door leaf includes a first end section and a second end section, the first end section including a swirl portion, the second end section of each door leaf being configured to be pivotally coupled with the swirl portion of an adjacent door leaf. The first end section of one of two outermost door leaves is pivotally connected with the fixing strip.

Abstract: A carrier slide includes a main body, a roller member, and a connecting member. The main body includes a base having a hole defined therein and a mounting member formed on the base. The mounting member includes a receiving groove defined in an underside thereof and having an opening that faces the base. The roller member includes a shaft and two wheels respectively mounted to two ends of the shaft to rotate therewith. The shaft has a diameter slightly smaller than a width of the opening of the receiving groove. The wheels rest on and are movable along a bottom of the rack. The connecting member has an upper end with a snapping fastener releasably engaged with the hole of the base and a lower end engaged with an upper end of a leaf plate of a collapsible doorplate assembly.

Abstract: A foldable door includes a track and a number of foldable door leaves. Each door leaf includes a compartment and two screw holes. Each door leaf is carried by a slider slidably received in the groove. The compartment of each door leaf receives a suspension member that includes a stem having an upper end connected to the slider to move therewith. Two resilient arms extend outwardly and upwardly from the stem and away from each other. Each resilient arm terminates at a positioning member located on top of an associated screw hole of the associated door leaf. Each positioning member includes a hole, and a fastener extends through the hole of each positioning member and the associated screw hole. The resiliency of the resilient arms absorbs a portion of impact to the suspension devices during folding and unfolding of the foldable door.

Abstract: A collapsible doorplate assembly includes a fixing member secured to a wall, a length-adjustable connecting device having a first end securely connected to the fixing member and a second end, a number of pivotal connecting members, and a number of leaf plates. Each two adjacent leaf plates are pivotally connected by one of the pivotal connecting members. An innermost one of the pivotal connecting members, which is nearest to the fixing member, is connected between the length-adjustable connecting device and an innermost one of the leaf plates which is nearest to the fixing member. The length-adjustable connecting arrangement includes an engaging member and a movable member. The engaging member includes a first end securely engaged with the fixing member and a second end. The movable member includes a first end slidably engaged with the second end of the engaging member and a second end in pivotal connection with the innermost pivotal connecting member.