Stepping motor protection cover plate

The utility model relates to the technical field of stepping motors, in particular to a stepping motor protective cover plate which comprises a square box, a fan is arranged at the bottom end of the square box, an extension mechanism is arranged in the square box, a side plate is arranged on the extension mechanism and slides in the square box, a connecting rod is arranged on the side face of the side plate, and a clamping mechanism is arranged at one end of the connecting rod. According to the utility model, by arranging the extension mechanism, the distance between the two side plates can be conveniently adjusted according to the size of the stepping motor, and by matching with the clamping mechanism, the protective cover plate can be conveniently mounted on stepping motors with different sizes, and the practicability of the protective cover plate can be improved. 本实用新型涉及步进电机技术领域，具体为一种步进电机防护盖板，包括方形盒，方形盒的底端设有风机，方形盒内设有延伸机构，延伸机构上设有侧板，侧板在方形盒内滑动，侧板的侧面设有连杆，连杆的一端设有夹持机构。本实用新型通过设置有延伸机构，便于根据步进电机的尺寸调整两侧侧板之间的间距，配合夹持机构，