The invention discloses a sill-free reflection light curtain system, and belongs to the technical field of elevator light curtains. Comprising a light curtain transmitter and a light curtain receiver which are installed on the opposite sides of a left car door and a right car door of an elevator respectively, the light curtain transmitter comprises a transmitter base plate and infrared transmitting tubes, and light shields are fixed to the outer sides of the infrared transmitting tubes close to a sill. The light shield is enclosed by a top plate, a bottom plate, a side plate and a front plate, an accommodating cavity matched with the infrared transmitting tube is formed in the light shield, the side plate is arranged opposite to the transmitter substrate and is connected with one side of the top plate and one side of the bottom plate, and the other side of the top plate and the other side of the bottom plate extend towards the transmitter substrate; the front plate is arranged below the front side of the light-emitting end of the infrared transmitting tube, the notch located above the front plate forms a front light outlet, the top plate corresponds to the tail end of the infrared transmitting tube, and the notch located on the front side of the top plate forms an upper light outlet. The device has the advantages that the influence of sill reflection on obstacle detection can be avoided, and the detection precision of the elevator door is improved.
一种无地坎反射光幕系统,属于电梯光幕技术领域。包括分别安装在电梯左、右轿门上相对侧的光幕发射器和光幕接收器,所述的光幕发射器包括发射器基板以及红外发射管,在靠近地坎的若干个红外发射管外侧固定有遮光罩,所述的遮光罩由顶板、底板、侧板以及前板围合而成且内部形成有与红外发射管适配安装的容纳腔,所述的侧板相对发射器基板设置且与顶板和底板的一侧联结,顶板和底板的另一侧朝向发射器基板延伸,所述的前板设在红外发射管的发光端的前侧下方,位于前板上方的缺口构成为前出光口,所述的顶板对应于红外发射管的尾端,而位于顶板前侧的缺口则构成为上出光口。优点:能够避免地坎反射对障碍物检测造成的影响,提高电梯门的检测精度。
Sill-free reflection light curtain system
无地坎反射光幕系统
2023-07-04
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
SIDE SILL REINFORCEMENT MEMBER, SIDE SILL, AND SIDE SILL MANUFACTURING METHOD
European Patent Office | 2021
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