Front-end transparent observation window of explosion-proof thermal imaging camera

The invention provides a front-end transparent observation window of explosion-proof thermal imaging camera, comprising a front cover which is fixedly connected to the camera cylinder, wherein the inner hole step of the front cover is orderly equipped with a metal coated pad, a second germanium glass, a third rubber pad, a metal mesh hole, a second rubber pas, a first germanium glass, a first rubber pad, a metal gasket and a glass clamping ring from inside to outside; the glass clamping ring is threadedly connected to the inner hole of the front cover, the inside of the glass clamping ring is pressed against the metal gasket, the metal gasket is compressed on the first rubber pad, the first rubber pad is compressed on the third rubber pad, the third rubber pad is compressed on the second germanium glass, the second germanium glass is compressed on the metal coated pad and the metal coated pad is compressed on the explosion-proof surface of the front cover. The front-end transparent observation window of explo