Photoelectric switch mounting bracket

The photoelectric switch mounting bracket comprises a supporting box, a supporting plate, a second rotating shaft, a sliding block, a sliding plate, a sleeve, a top block, a T-shaped block and a third rack plate, the supporting box is connected with the supporting plate through a first rotating shaft; a first gear is arranged on the first rotating shaft; the second rotating shaft is in transmission connection with the first rotating shaft and is provided with a second gear; the sliding block is in sliding connection with the supporting box, a T-shaped groove is formed in the sliding block, and a driving handle is arranged on the sliding block; the sliding plate is slidably connected with the T-shaped groove through the T-shaped block, and the sliding plate is provided with a first rack plate and a second rack plate which are used for being engaged with the second gear and the first gear correspondingly. The third rack plate is in transmission connection with a sleeve through a third gear; the sleeve is rotati