Deep foundation pit construction protection device

The utility model discloses a deep foundation pit construction protection device which comprises two oppositely-arranged protection plates, a width adjusting mechanism used for adjusting the distance between the two protection plates is arranged between the two protection plates, the top ends of the two protection plates are fixedly connected with a protection net, the width adjusting mechanism adjusts the distance between the two protection plates, and meanwhile the width adjusting mechanism adjusts the distance between the two protection plates. The area of the protective net is adjusted along with the distance between the two protective plates so as to protect foundation pits with different widths; and a height adjusting mechanism for adjusting the height of the protection plate is arranged on the protection plate. The method adapts to the technical field of foundation pit protection. 本实用新型公开了一种深基坑施工防护装置，包括两相对设置的防护板，两防护板之间设置有用于调节两防护板之间距离的宽度调节机构，两防护板的顶端固连有防护网，宽度调节机构调节两所述防护板的距离，与此同时，防护网的面积随两防护板的距离进行调节，以构成对不同