CN2532123Y

CN2532123Y - Man hole for underground pipeline

Info

Publication number: CN2532123Y
Application number: CN 02216643
Authority: CN
Inventors: 钱琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-08
Filing date: 2002-04-08
Publication date: 2003-01-22
Anticipated expiration: 2012-04-08

Abstract

Disclosed is an underground pipeline manhole cover, which includes two parts of a cover body and a lid seat, the surface of the cover body is provided with antiskid striae and a lifting hole, the lid seat comprises an outer frame, a frame edge and an inner frame, the cover body and the lid seat are composed of a composite outer cladding layer and an inner-burying steel bar layer, the cover body is buried with an upper, a middle and a lower steel bar layers with the equal number, and the steel bars of adjacent layers are vertical to each other, and steel bar master parts of the lid seat are round shapes. The utility model serves as the manhole cover and is widely applied to underground pipelines of municipal engineering, water, power supply, coal gas, communications and petrochemical processing, and has advantages of non easy of pilferage and crushing, strong and uniform bearing force of the cover body and non easy of impact and breakage of the lid seat.

Description

The underground pipeline manhole cover

Technical field

The utility model relates to a kind of with the manhole cover composite material making, that be widely used in the underground pipeline of municipal engineering, water, electricity, coal gas, communication, petrochemical industry industry etc.

Background technology

This class manhole cover, the easily cracked of cement used in easy pilferage cylinder iron, by retrieval, and useful glass steel, intensity is very not as one wishes.CN992528.4 " mold pressing inspection shaft lid " is to mix and stir with a kind of resin and inserts, in bury reinforcing bar hot pressing and form, its lid and cage profile are with reference to cast iron, in the bottom of the outstanding lid of the reinforcing bar that buries form " well " font lug, nib, this groined type lug, nib is arranged, make on the cage inner ring and must correspondingly have eight grooves, make troubles to scribing mould, eight groove influences of cage inner ring are smooth, easily cause collision damaged, and it is attractive in appearance that the groined type lug, nib of lid end evagination influences product.Bury reinforcing bar in this patent and divide three layers, be in three aspects in upper, middle and lower respectively, these three aspects do not fuse on the periphery reinforcing bar, and bearing capacity is poorer slightly, and pressure-bearing is stressed owes even.

Summary of the invention

The purpose of this utility model is outside not protruding being exposed to of reinforcing bar of burying in the lid, does not have " lug, nib ", makes profile attractive in appearance relatively, and the mould of making cage is convenient, eight grooves of the smooth nothing of inner ring, and it is damaged to be difficult for the generation collision.

The purpose of this utility model can realize by following measure: it comprises lid and cage two large divisions, anti-skidding line and hole are arranged on the lid face, cage has housing, frame edge and inside casing are formed, lid and cage be the composite material surrounding layer and in bury steel bar layer and form, the superiors' reinforcing bar arch of lid, the adjacent layer of upper, middle and lower-ranking reinforcing bar is orthogonal and the reinforcing bar number equal, the reinforcing bar main part of cage is cast, can divide two-layer, the upper strata be frame along steel ring, lower floor is inside casing steel ring and housing steel ring, each encloses reinforcing bar positioning bar.Between the housing of cage and the frame edge triangle boss is arranged.

Description of drawings

Fig. 1 and Fig. 2 are the utility model contour structures schematic diagrames (overlooking)

Fig. 3, Fig. 4 and Fig. 5 bury reinforcing bar schematic layout pattern (overlooking and side-looking) in the lid

Fig. 6 buries reinforcing bar distribution schematic diagram (side-looking) in lid and the cage

The specific embodiment

The utility model is below in conjunction with embodiment and contrast accompanying drawing and further specified, whole manhole cover is divided into lid 5 and cage 1 two large divisions, all be to be to bury cage of reinforcement in the surrounding layer to form with resin and auxiliary material thereof, surrounding layer is a kind of composite material, 15 parts of (weight portions, unsaturated-resin down together), 20 parts of reinforcing agents, 0.1 part of curing compound, 1.5 parts of release agents, 50 parts of inserts form through kneading, are being heated to 180 ℃ again, the reinforced frame of nuzzling is touched to press on 500 t hydraulic press and was formed in 15 minutes.On 5 of the lids anti-skidding line 2 and hole 7 are arranged, the porose lid of mentioning when being convenient to check, the reinforcing bar that buries in the lid 5 is with three layers of distribution, if the circular lid then annular reinforcing bar of periphery selects for use the standard thread steel of Φ 10 (square select Φ 18) to bend, upper and lower layer is with Φ 20, and the middle level is with Φ 18, adjacent two layers is orthogonal in three layers arranges, each layer reinforcing bar number equates that be 4, it is more even to bear pressure like this.Top reinforcement slightly is arch.Bury reinforcing bar in the cage 1 and be figure (side or ring shape, consistent with the well lid profile) frame on upper strata is arranged along steel ring 9, there is inside casing steel ring 11 in lower floor, housing steel ring 10, they are done with Φ 10 standard thread steels, if square Yong Φ 18 makes, each encloses reinforcing bar positioning bar, play tractive, positioning action, cage of reinforcement is made with cutting, welding.Frame is along 4 location lids, and 6 pairs of frames of triangle boss are favourable along intensity, and housing 3 is main bases of cage 1, and inside casing 8 is used for putting puts lid, and anti-skidding line 2 is established with the anti-skidding need of driving a vehicle for the pedestrian.

During production, make earlier mould, join composite material again, start press, be warmed up to 180 ℃, in mould, go up half compound material earlier, bury cage of reinforcement again, go up remaining composite material then, mold pressing demoulding after 15 minutes.

Lid of the present utility model does not have lug, nib, and the cage inside casing does not have groove, and smooth difficult collision is cracked, and the frame of cage is difficult for the crushing frame along favourable along steel ring press when building the road, and the reinforcing bar row on the lid is split all even raising that helps bearing capacity.

Claims

1, a kind of underground pipeline manhole cover, can divide lid (5) and cage (1) two large divisions, anti-skidding line (2) and hole (7) are arranged on the lid face, cage (1) includes housing (3), frame is along (4) and inside casing (8), lid (5) and cage (1) by the composite material surrounding layer with in bury steel bar layer and form, it is characterized in that the reinforcing bar that buries in the lid (5) is divided into upper, middle and lower-ranking, the reinforcing bar number is equal and adjacent layer is orthogonal, and the main part of cage reinforcing bar is cast.

2, underground pipeline manhole cover as claimed in claim 1 is characterized in that the housing (3) of cage (1) and frame have triangle boss (6) along between (4).

3, underground pipeline manhole cover as claimed in claim 1, it is two-layer to it is characterized in that the cage reinforcing bar divides, the upper strata be frame along steel ring (9), lower floor is inside casing steel ring (11) and housing steel ring (10), each encloses reinforcing bar positioning bar.