Integrated type anti-setting anti-falling well lid and unlocking device thereof
An unlocking device and anti-subsidence technology, which is applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of easy theft of manhole covers, inconvenient installation and disassembly, etc., and achieve the effect of avoiding people falling and convenient installation and replacement
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[0035] An integrated anti-subsidence and anti-fall manhole cover and its unlocking device of the present invention will be further described below in conjunction with the accompanying drawings.
[0036] Such as Figure 1-7 As shown, an integrated anti-settling and anti-falling manhole cover includes a cover body 1 and a base 2 which are rotatably connected.
[0037] The inner side of the cover body 1 is provided with a latch lock, and the latch lock is fixed on the inner side of the cover body 1 through a connecting piece 41 . Wherein, the latch lock comprises a screw rod 42 and a pressing rod 43 arranged on the screw rod 42, the screw rod 42 passes through a fixing ring 44 arranged on the connecting piece 41 and is fixed on the connecting piece 41, and the screw rod 42 is connected between the pressing rod 43 and the fixing ring. A spring 45 is sleeved between the 44 . In order to facilitate unlocking, the connecting piece 41 defines a locking hole 46 penetrating through th...
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