a working manhole cover
A technology for working wells and manhole covers, which is applied in artificial islands, water conservancy projects, infrastructure projects, etc. It can solve the problems that the covers cannot be opened, pipe network maintenance and investigation troubles, etc., and achieves the reduction of unopenable, simple structure, and convenient use. Effect
Active Publication Date: 2017-05-10
WUXI MUNICIPAL DESIGN INST
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Problems solved by technology
[0002] With the rapid development of modern cities, the scope of the city has greatly increased, and the municipal pipe network is also densely distributed in the streets and alleys of the city following the development of the city. However, most of the existing municipal pipe network manhole covers are simple in design and often need to be opened. Tools such as foreign picks, and many working manhole covers cannot be opened due to driving or rust after long-term use, which has caused great trouble to normal pipe network maintenance and investigation.
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[0018] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0019] As shown in the figure: the working manhole cover in the embodiment mainly includes two parts, the well circle 1 and the manhole cover 2. The well circle 1 and the manhole cover 2 are both designed to be circular. The inner concave bayonet 1a and the card groove 1b, the outer side of the well cover 2 is provided with a convex buckle 2a and a buckle device that are symmetrically distributed at 180°, and the inner concave bayonet 1a is inlaid with the outer convex buckle 2a Cooperating, it is used to locate the installation position of the well cover 2;
[0020] Such as Figure 2~Figure 4 As shown, in the embodiment of the present invention, the buckle device is mainly composed of a block 3, a cylindrical bar 4, a hollow tube 5 and a handle 6; In the small round hole and can rotate freely, the clamping block 3 is arranged under the well cover 2, and the ...
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The invention relates to a manhole cover. The manhole cover comprises a walling crib and a cover body. The manhole cover is characterized in that the inner side edge of the walling crib is provided with a concave bayonet and a clamping groove which are symmetrically distributed by 180 degrees, the outer side edge of the cover body is provided with a convex buckle and a buckle device which are symmetrically distributed by 180 degrees, and the concave bayonet and the convex buckle are matched in an inlaid mode to be used for locating the installation position of the cover body; the clamping groove and the buckle device are matched to be used for connecting the cover body with the walling crib in a locking mode. The manhole cover is simple in structure, compact in design and convenient to use. The cover body can be opened rapidly and conveniently. Meanwhile, the probability that the cover body cannot be opened can be reduced effectively.
Description
technical field [0001] The invention relates to a novel working manhole cover, which belongs to the technical field of municipal pipe network facilities. Background technique [0002] With the rapid development of modern cities, the scope of the city has greatly increased, and the municipal pipe network is also densely distributed in the streets and alleys of the city following the development of the city. However, most of the existing municipal pipe network manhole covers are simple in design and often need to be opened. Tools such as foreign picks, and many working manhole covers cannot be opened due to driving or rust after long-term use, which has caused great trouble to normal pipe network maintenance and investigation. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a new type of working manhole cover, which has a simple structure, compact design, and is easy to use, can quickly and ...
Claims
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IPC IPC(8): E02D29/14
Inventor 祝启祥谭东林
Owner WUXI MUNICIPAL DESIGN INST