CN2318267Y - Anti-theft cover for manhole - Google Patents

Abstract

The utility model relates to an anti-theft cover for a manhole. The utility model is composed of a cover plate and a base manhole ring, and the manhole ring is fixed in a road bed. The edge position of one side of the manhole ring is provided with 1-4 concave master handles, and the edge position of the corresponding same side of the cover plate 1 is provided with 1-4 convex sub-handles. Lateral preformed holes that are correspondingly communicated are evenly arranged on the master handles and the sub-handles. When the master handle is matched with the sub-handle, a lock pin simultaneously penetrates through prepared holes arranged on the master handles and the sub-handles, and the manhole ring and the cover plate are hinged and fixed. The utility model has the advantages of simple structure and convenient operation. The stealing phenomenon of the underground manhole cover can be effectively prevented, and the repair and management of the highway and municipal engineering departments to the underground manhole facility are convenient in some degree.

Description

Anti-stealing manhole cover

The utility model belongs to underground or the underwater works field, relates to a kind of anti-stealing manhole cover that is used for highway and municipal engineering underground installation inspection well head.

At present in the aboveground set well lid structure of underground installation in municipal engineering fields such as highway and plumbing, electric power, telecommunications mostly still for the well head cover plate directly being covered the structure on the base walling crib, there is not coupling arrangement between cover plate and the walling crib, to such an extent as to underground for a long time well lid is stolen very serious.The stolen phenomenon of well lid is not only brought very big loss to national economy, and causes casualties, unexpected traffic accident and vehicle damage, and society is caused serious harm.

The purpose of this utility model is to provide a kind of anti-stealing manhole cover that can effectively prevent missile silo losing of cover or dislocation phenomenon, in order to overcome above-mentioned the deficiencies in the prior art.

For achieving the above object, the technical solution that the utility model adopts is such: the cover plate and the base walling crib of known well lid are linked together by hinge in a side, form a kind of hinged wing formula well lid, when installing and using, the base walling crib is fixedly secured in roadbed, because cover plate and walling crib are for being wholely set, cover plate is difficult to pull down from walling crib, so can prevent the stolen phenomenon of losing of well lid effectively, reduce the generation of vehicle and personal accident traffic accident, ensure the safety of people's life and property.

Below with reference to accompanying drawing the utility model content is described further.

Fig. 1 overlooks to the plane structure schematic diagram for a specific embodiment of the utility model.

Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.

As shown in the figure, anti-stealing manhole cover described in the utility model is made up of cover plate 1 and the base walling crib 2 that cooperates with cover plate 1, walling crib 2 outer lower end extend all stages, be provided with the female handle 2a of 1～4 concavity at a lateral margin place of walling crib 2, be provided with 1～4 sub-handle 1a of convex with the lateral margin position accordingly at cover plate 1, all have the corresponding horizontal preformed hole that is communicated with on said female handle 2a and the sub-handle 1a, when female handle 2a with after sub-handle 1a cooperates, thereby pinning 3 penetrated simultaneously the preformed hole opened on mother and sons' handle with walling crib 2 and cover plate 1 hinged securement.During installation, base walling crib 2 buried underground be fixed in the roadbed, the pinning 3 that will connect cover plate 1 and walling crib 2 simultaneously also is embedded in underground, after cover plate 1 opens, be subjected to female handle 2a and road bed spacing, it is about 120 ° that its maximum is opened the angle, and the cover plate after so feasible the opening is not met external force and can not closed.In addition, generally should make the direction of opening of cover plate meet travel direction in the installation to vehicle, like this when meeting and after the automotive wheels of the crossing collision, the cover plate that opens can be closed automatically along sailing, but unlikely being broken.The dog hole that be used to turn over opening plate of number in the figure 4 for being opened on the cover plate.

Anti-stealing manhole cover described in the utility model can be made circle, square or polygon according to the usefulness pig iron, wrought iron, concrete materials etc. such as actual requirement of engineering and city look and feel characteristics, but on the cover plate external surface also respective mode compacting make geometrical pattern such as multiple create an aesthetic feelings such as flowers, plants and insect fish, rivers, mountains and rivers.

Compared with prior art, anti-stealing manhole cover described in the utility model simple and reasonable, handsome in appearance generous, With low cost, manufacturing is installed easily, use reliably makes things convenient for, adopts it can effectively prevent the stolen phenomenon of underground well lid And made things convenient for dramatically highway and municipal works department to maintenance and the management of missile silo facility, thereby this practicality The practice and extension of novel product has very high economic benefit and social benefit.

Claims (2)

1, a kind of anti-stealing manhole cover that is used for highway and municipal engineering underground installation inspection well head, form by cover plate (1) and the base walling crib (2) that cooperates with cover plate (1), walling crib (2) outer lower end extends all stages, it is characterized in that cover plate (1) connects by hinge in a side with walling crib (2).

2, anti-stealing manhole cover as claimed in claim 1, it is characterized in that being provided with the female handle (2a) of 1～4 concavity at a lateral margin place of walling crib (2), be provided with 1～4 sub-handle of convex (1a) with the lateral margin position accordingly at cover plate (1), all have the corresponding horizontal preformed hole that is communicated with on said female handle (2a) and the sub-handle (1a), when female handle (2a) with after sub-handle (1a) cooperates, with pinning (3) thus penetrate the preformed hole opened on mother and sons' handle simultaneously with walling crib (2) and cover plate (1) hinged securement.

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