CN2437737Y

CN2437737Y - Cast iron concrete cover of manhole

Info

Publication number: CN2437737Y
Application number: CN 00238530
Authority: CN
Inventors: 刘东波
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-28
Filing date: 2000-06-28
Publication date: 2001-07-04
Anticipated expiration: 2010-06-28

Abstract

The utility model relates to a cast iron concrete manhole cover. A manhole cover and a bottom base are made by compounding a cast iron skeleton and concrete, the cast iron skeleton is composed of an outer ring of the manhole cover and an internal grid structure, and the concrete comprises the grid part. A bottom base in a heavy type is circular, an inner ring is provided with a cast-iron edge opening which is compounded with a base ring of reinforced concrete, and the outer side of the base ring is inlaid with a protecting ring. The appearance of a bottom base in a light type is square, and the upper surface is provided with a terrazzo layer. A rubber sealing ring is arranged between the manhole cover and the bottom base for preventing the water penetrating problem of the manhole. The utility model has the advantages of reasonable structure, novel design, strong bearing capacity, environment beautification and the elimination of the phenomenon of stealing the cast-iron manhole cover. The utility model is the ideal replacing product of the existing cast-iron manhole cover.

Description

The cast iron concrete manhole cover

The utility model relates to a kind of well lid, particularly a kind of cast iron concrete manhole cover.

The well lid of pipelines such as the tap water that is provided with on the urban road, sewage, communication cable, circuit generally all is to adopt the cast iron integral cast to form.Well lid breakage, the phenomenon of losing happen occasionally, and often cause traffic accident, cause any property loss and casualties.

The purpose of this utility model is at deficiency of the prior art, provides that a kind of novel anti-theft is stolen, the cast iron concrete manhole cover of antiseep.

Technical solution of the present utility model is: the cast iron concrete manhole cover, be made up of well lid and base two parts, well lid and base are composited by cast iron skeleton and concrete, and well lid outer ring and inner mesh structure are formed the cast iron skeleton, the grid upper surface is curved, and the lattice portion branch is included in the concrete; Base is circular, and inner ring is provided with the cast iron bead, and cast iron bead and steel concrete seat ring are combined with each other, and upper edge, the seat ring outside studs with the protecting cast iron ring.

The base of cast iron concrete manhole cover can be divided into heavy and light-duty two kinds, the heavy design of adopting above-mentioned base, light-duty square, sidewalk, the residential quarters of being mainly used in, its base profile is designed to square, be composited by cast iron skeleton and concrete, base outer rim, inner ring and inner mesh structure are formed the cast iron skeleton, and the lattice portion branch is included in the concrete, and concrete surface is the terrazzo concrete layer.The design of its picture on surface is exquisite, can be complementary with azulejo on every side.

The well lid seepage problem of manhole is perplexing electric power, communication section always.The way that solves is to adopt double-deck casting iron well lid at present, and since poorly sealed, particularly intake in a large number rainy season, often cause to have a power failure and communicating interrupt, even damage equipment.In order to solve well lid water inlet problem, the utility model is provided with rubber seal at the well lid and the base binding site of special-purpose manhole.

Further describe the utility model below in conjunction with accompanying drawing:

Fig. 1 is a cast iron concrete manhole cover structural representation;

Fig. 2 is the sectional view of Fig. 1;

Fig. 3 is heavy cast iron concrete bed structural representation;

Fig. 4 is the base of special-purpose manhole well lid;

Fig. 5 is light-duty cast iron concrete bed structural representation.

Wherein: 1, well lid 2, cast iron skeleton 3, concrete 4, base 5, cast iron skeleton 6, concrete seven, terrazzo concrete layer 8, groove 9, sealing ring 10, base 11, cast iron bead 12, reinforcing bar 13, protection ring 14, concrete

As shown in Figure 1 and Figure 2, the cast iron concrete manhole cover 1 that the utility model is made, be composited by cast iron skeleton 2 and concrete 3, the cast iron skeleton adopts No. 22 iron casting moulding, concrete is selected high strength cement for use No. 600, for strengthening the intensity of well lid, the grid upper surface of cast iron skeleton 3 is designed to arc.

The heavy cast iron concrete bed of Fig. 3 for being provided with on the road, its profile are circular, and cast iron bead 11 is arranged on inner lane, and the concrete seat ring 14 that is added with reinforcing bar 12 is included in cast iron bead 11 peripheries, and upper edge, the seat ring outside studs with protecting cast iron ring 13.

For the design of the light-duty cast iron concrete bed that is installed in square, sidewalk, residential quarters as shown in Figure 5, base 4 profiles are designed to square, be composited by cast iron skeleton 5 and concrete 6, the lattice portion branch is included in the concrete, and concrete surface is a terrazzo concrete layer 7.

During making, the cast iron skeleton or the cast iron bead of casting are put into model, add the good strong concrete of proportioning, vibrate once-combined moulding through machinery.Well lid that processes and base, the weight of cast iron skeleton only account for about 1/4 of gross weight, can save steel greatly on the one hand, reduce cost, and it is low to usurp value on the other hand, can avoid taking place the stolen phenomenon of well lid.

According to design of the present utility model, if be used for the well lid of manhole,, also can leave a circle groove 8 at the step place of base 10 except that adopting said method to make the well lid, place rubber seal 9 in the groove, as shown in Figure 4.After covering well lid, rubber ring is just in time pushed down in the lower surface of well lid, has thoroughly solved the well lid seepage problem.

The utility model is rational in infrastructure, modern design, and cost of manufacture is low, and weight capacity is strong, non-slip, noiselessness, non-leakage.Adopting this novel cast iron concrete manhole cover, both beautified the environment, stopped to steal the phenomenon of casting iron well lid again, have good social benefit, is the existing desirable regeneration product of casting iron well lid.

Claims

1, a kind of cast iron concrete manhole cover; form by well lid and base two parts; it is characterized in that well lid and base are composited by cast iron skeleton and concrete; well lid outer ring and inner mesh structure are formed the cast iron skeleton; the grid upper surface is camber, and the lattice portion branch is included in the concrete: base is for circular, and inner ring is provided with the cast iron bead; cast iron bead and steel concrete seat ring are combined with each other, and upper edge, the seat ring outside studs with the protecting cast iron ring.

2, cast iron concrete manhole cover according to claim 1, it is characterized in that the base profile is square, be composited that base outer rim, inner ring and inner mesh structure are formed the cast iron skeleton by cast iron skeleton and concrete, the lattice portion branch is included in the concrete, and concrete surface is the terrazzo concrete layer.

3, according to claim 1,2 described cast iron concrete manhole covers, it is characterized in that the binding site of well lid and base is provided with rubber seal.