Well cover opening device with pair of apertures
A technology for opening devices and manhole covers, which is applied in hoisting devices, hoisting devices, etc., can solve the problems of laborious lifting of manhole covers and complex structures, and achieve the effects of convenient handling, high operating safety, and large opening tension
Active Publication Date: 2010-04-07
CHINA TELECOM CORP LTD
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[0002] The application number is 200820039174.9, and the patent titled manhole cover opener provides a manhole cover opener, which adjusts the position of the screw through the slider, lifts the manhole cover by manually pressing the pull rod, and relies on the rollers at the bottom of the tool to transport it. After the tapered end of the front end of the lead screw is inserted into the hole of the manhole cover, its movable piece is stretched outwards to hook the manhole cover, and the manhole cover is lifted by manually pressing the pull rod. The structure is relatively complicated and it is laborious to lift the manhole cover.
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[0008] refer to figure 1 and figure 2 , a manhole cover opening device with a pair of slits, comprising a main beam 1 and hinged wheel bases 2 arranged on both sides of the main beam 1, the hinged wheel base 2 cooperates with the two sides of the main beam 1 for lifting and sliding , the hinged wheel base 2 is also provided with a jack 3 capable of jacking up the main beam 1, and the main beam 1 is fixedly connected with a pair of suspenders 4 that can pass through the well cover slot 9 downwards, and the lower ends of the suspenders 4 are A section of the turning handle 5 that can pass through the well cover slot 9 is connected.
[0009] Both sides of the hinged wheel base 2 and the main crossbeam 1 realize lifting and sliding through the slide bar 6 vertically arranged on the hinged wheel base 2, and the middle part of the main beam 1 is provided with a support rod 7 for pushing the well cover opening device. The front side of the hinge wheel seat body 2 is provided with ...
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The invention relates to a well cover opening device with a pair of apertures, which comprises a main cross beam and a pair of hinge wheel seat bodies arranged on two sides of the main cross beam, and is characterized in that: the hinge wheel seat bodies and the two side parts of the main cross beam are fit in a sliding mode for lifting; the hinge wheel seat bodies are also provided with a jack capable of jacking the main cross beam; the main cross beam is fixedly connected with a pair of suspenders capable of passing through the apertures of the well cover downwards; and the lower ends of the suspenders are connected with a section of a crank capable of passing through the apertures of the well cover. The device has the advantages of large well cover opening pull force, simple operation, high operation safety, wide adaptability and convenient carrying and transport.
Description
technical field [0001] The invention relates to a well cover opening device with a pair of slit holes, which is suitable for opening the well cover. Background technique [0002] The application number is 200820039174.9, and the patent titled manhole cover opener provides a manhole cover opener, which adjusts the position of the screw through the slider, lifts the manhole cover by manually pressing the pull rod, and relies on the rollers at the bottom of the tool to transport it. After the tapered end of the front end of the lead screw is inserted into the well cover hole, its movable piece is stretched outwards to hook the well cover, and the manhole cover is lifted by manually pressing the pull rod. The structure is relatively complicated and it is more laborious to lift the well cover. Therefore, how to solve the above problems is the purpose of this research invention. Contents of the invention [0003] The object of the present invention is to provide a manhole cover...
Claims
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IPC IPC(8): B66F19/00
Inventor 陈庆智陈凯伟张庆松
Owner CHINA TELECOM CORP LTD