BOX OF SURVEILLANCE CAMERA, PLACED IN SHOT BLASTING UNIT INSIDE SHOT BLASTING CHAMBER Russian patent published in 2018 - IPC H04N5/64 

FIELD: monitoring devices.

SUBSTANCE: invention relates to ancillary equipment placed in a shot blasting unit within a shot blasting chamber, in particular to a surveillance video camera placed in a box and intended to control the blasting process of articles within the blasting chamber, as well as for possible control over the control of the movement of the product and shot-blast nozzle inside the shot blasting chamber. In the box of the surveillance camera, which is placed in the shot blasting unit inside the shot blasting chamber, where moving abrasive particles are used, including a surveillance camera with a pupil, through which video surveillance is carried out, and a case with a protective cover with an inspection hole, a surveillance camera inside the case with a protective cover is placed so that its pupil is located opposite the inspection hole, in this case, a compressed air supply system is introduced into the housing with a protective cover, the diameter d of the inspection opening of the housing with the protective cover and the volume flow Q of the purified compressed air passing through its inspection hole are connected by the relation: 4*Q/(πd²)>v_a, where Q is the volume flow of purified compressed air passing through the inspection hole, d is the diameter of the inspection hole, v_a – speed of movement of abrasive particles in the shot blasting chamber. In addition, the surveillance camera can have a conical pin-hole lens, the compressed air supply system must be equipped with a compressor, a fine filter and a connecting sleeve and the protective case of the box body can be made of an abrasion-resistant material, for example a polyurethane elastomer.

EFFECT: technical result of the present invention is to provide protection for the surveillance camera placed inside the shot blasting chamber from the impact of the abrasive shot and dust during shot blasting at the appropriate facilities.

4 cl, 1 dwg