Municipal manhole cover loss early warning protection device

Abstract

The invention discloses a municipal well lid loss early warning protection device which comprises an annular device, base conical barrels, a first-stage telescopic barrel, a second-stage telescopic barrel, a spring, an annular connecting rod and a supporting device. A first-stage telescopic cylinder and a second-stage telescopic cylinder are sequentially connected into the base conical cylinder in a sliding mode, the interiors of the base conical cylinder, the first-stage telescopic cylinder and the second-stage telescopic cylinder stretch out and draw back through springs, and horizontal annular connecting rods are fixed to the tops of the outer walls of the base conical cylinder, the first-stage telescopic cylinder and the second-stage telescopic cylinder. A plurality of supporting devices are installed on the inner circumference of the annular device. The device plays a role in warning, prevents pedestrians from falling into a wellhead, prevents foreign matters from being washed into the wellhead by rainwater in cooperation with the annular connecting rod, and can also play a role in blocking the foreign matters and preventing the wellhead from being blocked.

Description

technical field [0001] The invention relates to a protection device, in particular to an early warning protection device for the loss of municipal manhole covers. Background technique [0002] Urban drainage manhole covers are drained through underground pipes to avoid the accumulation of rainwater on the road. Under the influence of heavy rain, the drainage capacity of urban sewer pipes is limited, and it is easy to form water flow on the road surface. The water flows through the assembly and washes away the manhole cover, resulting in the phenomenon of no protection at the wellhead, and the wellhead is blocked by rainwater. It is difficult to find the location of the wellhead, which is easy to cause pedestrians to fall In the wellhead, pedestrians were injured. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide an early warning protection device for the loss of municipal manhole covers to solve the above-mentioned technical problems. ...

AI Technical Summary

Problems solved by technology

Under the influence of heavy rains, the drainage of urban sewer pipes is limited, and it is easy to cause water flow on the road surface. The water flows through the assembly and washes away the well cover, resulting in no protection at the well head. However, the well head is blocked by rain, so it is difficult to find the position of the well head, which is easy to cause pedestrians to fall In the wellhead, pedestrians were injured

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