CN2777053Y

CN2777053Y - Exchangeable manhole cover made of composite materials

Info

Publication number: CN2777053Y
Application number: CN 200520017174
Authority: CN
Inventors: 王健
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-22
Filing date: 2005-04-22
Publication date: 2006-05-03
Anticipated expiration: 2015-04-22

Abstract

The utility model relates to an exchangeable manhole cover made of composite materials, which belongs to the appendant facility of underground well-shaped buildings. The well cover uses thermosetting composite materials which use unsaturated polyester resin as substrates to be substrates. The interior of the well cover is provided with a steel bar layer having a network structure. The surface of the manhole cover is in the shape of a circular arced bridge of 4 DEG to 8 DEG. The surface is provided with an opening hole for checking. The four corners of the well cover are provided with four draining holes. The well cover is reserved with a character module. The surface of the manhole cover is pressed with an antiskid rib. The bottom of the manhole cover is provided with a blind hole. The steel bars of the network structure in the interior of the well cover are divided into an upper layer and a lower layer. The lower steel bar layer is provided with horizontally arranged steel bars of equal distances and circular fixing rings. The upper steel bar layer is provided with vertically arranged steel bars of equal distances, assistant steel bar strips, oblique triangular steel bar strips and connecting steel bars. The utility model can be directly exchanged with manhole covers made of cast irons. The utility model has the advantages of pressing resistance, folding resistance and impact resistance. The manhole cover is a high exchangeable manhole cover made of composite materials which can avoid running, jumping and sounding and prevent the surface of the well cover from accumulating water.

Description

A kind of composite material manhole cover with interchangeability

Technical field

The utility model belongs to the ancillary facility of missile silo shape building, relates to a kind of interchangeability composite material manhole cover that has.

Background technology

The inspection shaft lid is widely used in aspects such as town road construction, petrochemical industry, power and water plants, Communication Engineering, urban duct box coal gas.Traditional inspection shaft lid mainly comprises two kinds of cast iron and cement products.Because the recycling that casting iron well lid itself had is worth and stolen incident often takes place, moreover casting iron well lid exists traffic hidden danger and noise pollution because there are shortcomings such as race, jumping, sound aspects such as its material in the process of using.The property of the well lid of cement products own is crisp, can't reach the requirement of regulation aspect shock resistance, breaks easily and causes the generation of security incident.Casting iron well lid and cement well lid also have a common shortcoming, are exactly too heavy, inconvenience during fitting operation.

The appearance of composite drain cover has changed many deficiencies of traditional well lid.At first, general composite drain cover weight is low weight, is convenient to install and transportation.Common composite material is mainly two kinds of thermoplastic and thermosettings.Thermoplastic composite because the attribute of himself is at high temperature unstable, causes the generation of quality problems thereby deform easily; Secondly, the interchange issues of all unresolved and existing cast iron of existing composite material manhole cover or cement well lid, its thickness that can accomplish all covers greater than cast iron class inspection shaft, CJ/T121-2000 " regenerating resin manhole cover made of composite material " standard has also been stipulated the well lid insert depth: heavy well lid should be less than 70mm, general type well lid should be less than 50mm, and light-duty well lid should be less than 20mm.On existing downtown roads, need cast iron class inspection shaft lid is replaced by composite material manhole cover as reasons such as, breakages stolen because of well lid, then original well lid and well seat must be changed simultaneously, thereby caused the waste of each side such as manpower, financial resources, material resources, simultaneously, also increased the pressure of traffic department.

Summary of the invention

The purpose of this utility model is to improve the deficiencies in the prior art, and provide a kind of in light weight, be convenient to install and transportation, have anticorrosive, resistance to compression, anti-folding, impact resistance, the composite material manhole cover with cast iron class inspection shaft lid interchangeability of having of avoiding product to run, jump, ring and preventing the well lid surface area water.

To achieve these goals, the technical solution adopted in the utility model is:

The utility model is a circular lid, and being combined with cancellated reinforcing bar by the same with thermosetting compound material that with the unsaturated polyester resin is matrix forms (this mould pressing process is equally applicable to produce the composite material manhole cover well seat of determining by existing cast iron class well seat size) through HTHP thermosetting in mould.The thickness of whole inspection shaft lid is identical with existing cast iron class inspection shaft lid thickness, does not therefore need to change the well seat, just can realize the exchange with cast iron class inspection shaft lid.The well lid surface design is that circular arc is arch-shaped, and blind hole is arranged at the bottom, and direct decomposition pressure when the thickness of inspection shaft lid is reduced, still can reach standard-required on functional performance.There is anti-skidding muscle on the well lid surface, and design has a drain hole on the well lid, can be in case ponding, avoid the minute surface reflection and the traffic accident that causes takes place.Unlatching inspection eye on the well lid is convenient to open the inspection shaft lid, and also plays the purpose of draining.The cancellated reinforcing bar of well lid inside is evenly distributed the stressed of well lid, has reduced the generation of concentrated stress, avoids the destruction that causes thus, long service life.

Description of drawings

Fig. 1 the utility model front view

Fig. 2 the utility model is along A-A directional profile figure

Fig. 3 the utility model internal construction bar construction figure

The inner bar construction of Fig. 4 the utility model along B-B to sectional drawing

The inner bar construction of Fig. 5 the utility model along C-C to sectional drawing

The specific embodiment

Below by embodiment and contrast accompanying drawing the utility model is described in detail:

Shown in Fig. 1-5, the utility model is a circular lid, and its same with thermosetting compound material with unsaturated polyester resin is a matrix, and its inside is provided with cancellated steel bar layer.The surface 6 of inspection shaft lid is the circular arch bridge type of 4～8 degree, and the unlatching inspection eye 1 with two symmetries is so that open the inspection shaft lid; Four jiaos at well lid have four drain holes 2; Be reserved with word modules 3 on the well lid; The inspection shaft cap surface is pressed with the anti-skidding muscle 4 of cross.Evenly distributed circular blind hole 5 is arranged at the bottom of inspection shaft lid.The cancellated reinforcing bar of well lid inside is divided into two-layer up and down, and following steel bar layer 7 is equidistant reinforcing bar 71 and the circular retainer plate of arranging 72 of level, not welding relation between reinforcing bar 71 and the circular retainer plate 72.Last steel bar layer 8 is the vertical equidistant reinforcing bar of arranging 81, auxiliary reinforcement bar 82, oblique triangle reinforcement bar 83 and connecting reinforcement 84 affixed compositions.Wherein, auxiliary reinforcement bar 82 is welded on the horizontal reinforcement between per two vertical reinforcing bars; Tiltedly triangle reinforcement bar 83 is welded in the big place, right angle of top reinforcement neutral gear; Connecting reinforcement 84 is welded between two vertical reinforcing bars in the outside and the circular retainer plate 72, on the horizontal reinforcement 71, plays the interconnect function of the circular retainer plate 72 of steel bar layer 8 and following steel bar layer 7.

Claims

1. composite material manhole cover with interchangeability, its same with thermosetting compound material with unsaturated polyester resin is a matrix, and its inside is provided with cancellated steel bar layer, it is characterized in that: the surface of inspection shaft lid is the circular arch bridge type of 4～8 degree, and blind hole is arranged at the bottom of inspection shaft lid; The inner cancellated steel bar layer of inspection shaft lid is divided into two-layer up and down.

2. a kind of composite material manhole cover as claimed in claim 1 with interchangeability, it is characterized in that: the surface has the unlatching inspection eye, at well lid four jiaos four drain holes is arranged; Be reserved with word modules on the well lid; The inspection shaft cap surface is pressed with anti-skidding muscle.

3. a kind of composite material manhole cover as claimed in claim 1 with interchangeability, it is characterized in that: the following steel bar layer of described cancellated steel bar layer is reinforcing bar and the circular retainer plate that level is equidistantly arranged, and last steel bar layer is the vertical equidistant reinforcing bar of arranging, auxiliary reinforcement bar, oblique triangle reinforcement bar and connecting reinforcement.

4. a kind of composite material manhole cover with interchangeability as claimed in claim 3 is characterized in that: described auxiliary reinforcement bar is welded on the horizontal reinforcement between per two vertical reinforcing bars; Tiltedly the triangle reinforcement bar is welded in the big place, right angle of top reinforcement neutral gear; Connecting reinforcement is welded between two vertical reinforcing bars in the outside and the circular retainer plate, on the horizontal reinforcement.