Manhole cover opening device
A technology for opening devices and manhole covers, which is applied in the direction of lifting devices, crowbars, etc., can solve the problems of poor impact resistance and fatigue resistance, high anti-theft performance, and high cost, and achieve the effect of reducing damage and opening easily
Inactive Publication Date: 2014-04-23
STATE GRID CORP OF CHINA +2
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Problems solved by technology
[0004] The manhole covers in the prior art are mainly divided into metal manhole covers and non-metal manhole covers. Metal manhole covers have high bearing capacity, good impact and fatigue resistance, but high cost and poor anti-theft performance. Non-metal manhole covers have low cost and high anti-theft performance, but they are heavy. , poor impact resistance and fatigue resistance, easy to break, short life, inconvenient to open
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[0016] Such as figure 1 , 2 As shown, a kind of manhole cover opening device embodiment 1 of the present invention comprises a crowbar 3, a suction cup 2, a support plate 6, a moving wheel 7 and a driving mechanism 4, the front end of the crowbar 3 is connected with the suction cup 2, and the suction cup 2 An electromagnet 1 attracting thereto is arranged below, the end of the crowbar 3 is connected with the supporting plate 6, the moving wheel 7 is arranged below the supporting plate 6, and the driving mechanism 4 is arranged above the supporting plate 6. The electromagnet 1 and the suction cup 2 cooperate with each other to open the well cover, reducing the damage to the well cover when opening the well cover.
[0017] The moving wheel 7 is a universal wheel assembly, and the universal wheel assembly includes a universal wheel 71 and a universal wheel frame 72 matched therewith. It can be easily dragged after the manhole cover is lifted.
[0018] The universal wheel frame...
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The invention discloses a manhole cover opening device which comprises a crowbar, a suction cup, a supporting plate, a movable wheel and a drive mechanism. The front end of the crowbar is connected with the suction cup, the lower portion of the suction cup is provided with an electromagnet attractive to the suction cup, the tail end of the crowbar is connected with the supporting plate, the movable wheel is arranged on the lower portion of the supporting plate, and the drive mechanism is arranged above the supporting plate. The electromagnet disposed at the front end of the crowbar is matched with the suction cup, so that manhole cover damage caused by opening of a manhole cover is reduced. By means of the lever principle and the drive mechanism, the manhole cover is easy to open, time and labor are saved, and the manhole cover can be easily dragged after being lifted by means of the additional arrangement of a universal wheel. Besides, a manual pressing rod is arranged, workers can select whether to open the manhole cover through the drive mechanism or manually, various opening modes are provided, and the manhole cover opening device is convenient to use, practical and suitable for various manhole cover opening occasions. The manhole cover opening device effectively solves the technical problems that in the prior art, damage is prone to being generated during manhole cover opening, labor and time are wasted during manhole cover opening, and the manhole cover is difficult to move after being lifted.
Description
technical field [0001] The invention belongs to the technical field of supporting tools for inspection wells, and in particular relates to a well cover opening device. Background technique [0002] The manhole cover is arranged on the top of the entrance and exit that can lead to the inspection well of underground facilities, and the surface is a flat openable 4, which is the main supporting product of the inspection well. Inspection wells and their supporting manhole covers are required to be installed in places where underground utilities such as tap water, telecommunications, electricity, gas, heat, fire protection and sanitation are installed. [0003] The well cover can mainly bear weight, close and open the inspection well, so that the maintenance personnel of public facilities can check the underground pipelines and facilities of the inspection well by opening the manhole cover, clean up the dirt, repair and maintain, and prevent the passing people from falling into t...
Claims
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IPC IPC(8): B66F15/00
Inventor 丁展雷陈鹏飞李方健朱赢健王剑平
Owner STATE GRID CORP OF CHINA