Rotary lock of well lid

A rotary lock of a well lid comprises the well lid, a well seat and a lock piece, and a well opening is formed in the well seat. The rotary lock is characterized in that an upper lock groove is formed in the well lid and comprises an upper groove and an upper inserting hole formed in the bottom of t...

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Bibliographic Details
Main Author HUANG WANJIN
Format Patent
LanguageChinese
English
Published 22.10.2021
Subjects
ACCESSORIES THEREFOR
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HANDCUFFS
HYDRAULIC ENGINEERING
KEYS
LOCKS
SAFES
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
WINDOW OR DOOR FITTINGS
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Summary:A rotary lock of a well lid comprises the well lid, a well seat and a lock piece, and a well opening is formed in the well seat. The rotary lock is characterized in that an upper lock groove is formed in the well lid and comprises an upper groove and an upper inserting hole formed in the bottom of the upper groove; a lower locking groove is formed in the well seat and comprises a lower inserting hole and a first clamping groove below the lower inserting hole; when the well lid covers the well opening, the upper locking groove is located above the lower locking groove, and the upper inserting hole faces the lower inserting hole to form a locking hole; the lock piece comprises a knob, a lock head and a locking bolt, and the knob is arranged above the lock head; the knob is arranged in the upper locking groove, the lock head can extend into the first clamping groove from the locking hole, and the lock head can be clamped into the first clamping groove by rotating the lock piece; and the locking bolt is arranged
Bibliography:Application Number: CN202111006427