Well cover plate device for prefabricated reinforced concrete inspection well

• Main Authors: LIU YONGHAO, LIU BO, ZHANG YUANYUAN, WANG SHULIANG, GAO FENG, MAO YUJIA
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2014
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The utility model discloses a well cover plate device for a prefabricated reinforced concrete inspection well. The well cover plate device comprises a well cover plate. Two bolt holes are symmetrically formed in the well cover plate and respectively comprise a large hole for supporting a bolt head of a bolt and a small hole allowing a threaded rod of the bolt to pass through; the bolts provided with the bolt heads with holes are inserted into the two bolt holes; the bolt heads of the bolts are pressed on gaskets which are mounted at the large holes; the threaded rods of the bolts penetrate through the small holes; each threaded rod located below the well cover plate is sequentially sleeved with an upper gasket, a spring and a low gasket; a nut in threaded connection with the lower end of the corresponding threaded rod is pressed on each lower gasket; the height of the bolt heads of the bolts is smaller than or equal to the depth of the small holes. The well cover plate device has the advantages of being conve