Manual hole digging pile hole opening protection device

• Main Authors: CUI JISHENG, FAN YU, ZHANG DONG
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2022
• Subjects: ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE; BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FORMS; FOUNDATIONS; HANDLING BUILDING MATERIALS ON THE SITE; HYDRAULIC ENGINEERING; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHUTTERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The utility model provides a protective device for a hole of a manual hole digging pile, and belongs to the field of building construction auxiliary equipment. According to the technical scheme, the device comprises an annular bottom frame and a supporting frame arranged on the annular bottom frame, a protective net is arranged on the periphery of the supporting frame, the supporting frame comprises an upper annular frame and a lower annular frame, a plurality of supporting rods are arranged between the upper annular frame and the lower annular frame, and an upper annular limiting rubber ring and a lower annular limiting rubber ring are arranged on the outer side of the upper annular frame and the outer side of the lower annular frame respectively. Annular clamping grooves are formed in the upper annular limiting rubber ring and the lower annular limiting rubber ring, the upper annular frame and the lower annular frame are correspondingly arranged in the annular pulling grooves, the upper edge of the protecti