Baffle plate mechanism of observing window

Abstract

The invention discloses a baffle plate mechanism of an observing window, comprising a baffle plate, a rotating shaft, a rotating handle, a fixing seat, a lined ring, magnetofluid, a first bearing and a second bearing, wherein an input hole is arranged on a vacuum cavity; the fixing seat is perforatively provided with a driving hole; the fixing seat is arranged on the outer wall of the vacuum cavity; the driving hole faces against the input hole; the front end of the rotating shaft enters into the vacuum cavity after sequentially and pivotally passing through the driving hole and the input hole and is fixedly connected with the baffle plate; the fixing seat is provided with a sealed installing groove along the radial direction of the driving hole; the lined ring, the first bearing, the magnetofluid and the second bearing are sequentially sleeved on the rotating shaft and accommodated into the sealed installing groove in a seal mode; the rotating handle is fixed at the rear end of the rotating shaft, and the rotating handle rotates by rotating the rotating handle; and the baffle plate is driven by rotating the rotating shaft to hide or expose the observing window. The baffle plate mechanism of the observing window is provided with the baffle plate, and the observing window of the vacuum cavity can be hidden by rotating the baffle plate.

Description

technical field [0001] The invention relates to the field of vacuum chambers for providing a vacuum environment, in particular to an observation window baffle mechanism that can block or open the observation window of the vacuum chamber through rotation. Background technique [0002] Organic light emitting displays have been regarded as a new generation of flat panel displays following the currently dominant liquid crystal displays or plasma displays due to simple device structures and simple manufacturing processes and good image quality. The production system for manufacturing small-molecule organic light-emitting displays is generally composed of evaporation systems and packaging systems, especially the thermal evaporation system for multilayer films is an important and key part. The thermal evaporation system includes a vacuum chamber, and the thermal evaporation process is completed in the vacuum chamber. The vacuum chamber is usually equipped with an observation windo...

AI Technical Summary

Problems solved by technology

[0003] However, while the observation window provides convenience for observing the operation of the equipment inside the cavity, the observation window is also easily coated by evaporated materials and affects the observation effect. The strong light or radiated light emitted by the equipment inside the cavity may pose a threat to the safety or health of persons

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