Clean operation shelter
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The invention provides a clean operation shelter comprising an operation shelter and a preparation shelter which are separated by a cross wall; an automatic sensing door is arranged on the cross wall; the operation shelter and the preparation shelter are respectively provided with a shelter door; air cleaning systems are respectively arranged in the operation shelter and the preparation shelter; one side surface of the operation shelter is provided with a foldable expansion shelter; the expansion shelter comprises a bottom plate, a side plate, a front end plate, a rear end plate and a top plate; the bottom plate is hinged at the bottom of the side surface of the operation shelter; the top plate is hinged on the top of the side surface of the operation shelter; the side plate is hinged with the bottom plate; the front end plate and the rear end plate are respectively hinged on two vertical sides of the side surface of the operation shelter; two oil cylinders are arranged in the operation shelter; piston rods of the two oil cylinders are respectively connected to the front edge and the rear edge of the bottom plate; a retractable lower constant force support device is connected between the side plate and the bottom plate; and a retractable lower constant force support device is connected between the top plate and the side surface of the operation shelter. The clean operation shelter not only can keep the air in the operation shelter clean but also can expand the space of the operation shelter.