CN2559701Y

CN2559701Y - Reinforced bar framework glass fibre reinforced plastic sewerage gully grating

Info

Publication number: CN2559701Y
Application number: CN 02274779
Authority: CN
Inventors: 康晓伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-16
Filing date: 2002-08-16
Publication date: 2003-07-09
Anticipated expiration: 2012-08-16

Abstract

The utility model provides a reinforcement framework FRP downcomer grate, which has the advantages of long service life and being difficult to be lost. The FRP downcomer grate is internally comprises a reinforcement framework having the same shape with the downcomer grate; the external surface of the reinforcement framework is also enwound with short cut fiber felt; the outside of the short cut fiber felt is a glass fiber cloth; the most external layer is a FRP colophony. The utility model can be made into the downcomer grates with all shapes and can fully replace the downcomer grates made by cast iron.

Description

Well grate under the cage of reinforcement glass fiber reinforced plastic

Technical field:

The utility model relates to the water discharge technology field, and exactly it is a well grate under a kind of cage of reinforcement glass fiber reinforced plastic.

Background technology:

The long-term cast iron Ma Hulugai that exposes on road that uses of domestic city is faced with management and damaged puzzlement.Along with the rise of price of steel product, scrap iron and steel market is day by day flourishing, and city horse cucurbit losing of cover phenomenon is quite serious.While, large-scale bogie was more and more owing to vehicle is multiplied, and Ma Hulugai is pressed down, and falls can be found everywhere of limit, arrisdefect.Therefore Ma Hulugai demands urgently updating, though occurred the Ma Hulugai that materials such as cement, stone, magnesite make in recent years advantage is arranged respectively, and is also all unsatisfactory.Because product is too thick and heavy, carrying, draining are all inconvenient.Glass fiber reinforced plastic and composite glass fiber reinforced horse cucurbit lid goods have also appearred simultaneously, because impact resistance is not strong, embrittlement easily, therefore body is promoted not opened gently easily by drawbacks such as rainwater wash away, Ma Hulugai can't be updated, the requirement of urban beautification, brightening is more and more higher at present, to require be landscape everywhere, the cucurbit losing of cover but the street starts, and what damage by pressure is trap everywhere.The horse cucurbit lid goods that need now require promptly not lose, and many load-bearing than existing goods again; Promptly can not be cast iron, again than also firmly also more shock resistance of iron.Through test of many times research, prove that cage of reinforcement glass fiber reinforced plastic Ma Hulugai is the substitute products of more satisfactory existing Ma Hulugai.

Summary of the invention:

The purpose of this utility model provides well grate under a kind of cage of reinforcement glass fiber reinforced plastic, take glass fiber reinforced plastics product to give the way of embedded part, freeze into skeleton with the screw-thread steel of 8～10mm by the specification of drain cover, produce drain cover the time this cage of reinforcement is placed in the middle of, skeleton be can't see in the drain cover outside of producing, simultaneously, play indispensable effect again.It is characterized in that: include cage of reinforcement (2) under the glass fiber reinforced plastic in the well grate (1) with the same shape of following well grate.Cage of reinforcement (2) outside also is tied with chopped mat, and chopped mat is outward a glass fabric, and outermost layer is a fiber glass resin.

The utility model has the advantages that: one, glass fiber reinforced plastic horse cucurbit lid is corrosion-resistant, and media such as the acid of atmosphere, water and general concentration, alkali, salt are had good chemical stability; Two, the glass fiber reinforced plastic fatigue performance is good.Glass fiber reinforced plastic is heat-resisting to be reached about 80 ℃, cold-resistant can reaching about-60 ℃.Therefore glass fiber reinforced plastic Ma Hulugai in China south, the north can use.Life-span is more than the length of cast iron.Three, can not lose.Though this well grate down is a cage of reinforcement, reinforcing bar only accounts for about 20% of whole drain cover weight.Simultaneously, be again that the reason part outside of giving of glass fiber reinforced plastics product be can't see, also be difficult to be folded down and, therefore, can not be stolen.Four, the weight of this drain cover reaches standard, can not be washed away by the rainwater levitating.Five, be convenient to produce.The processed complex that metal material is made, technological equipment is many, and the production cycle is long.And this drain cover can be produced on the spot, installs on the spot.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment:

Embodiment:

The utility model makes mould according to the specification of following well grate earlier, 2～3 layers of 0.4mm glass fabric on the mould upper berth then, on glass mat, put the thick chopped mat of 4mm equably, put the cage of reinforcement that twines with chopped mat, put a pellet, successively put into chopped mat and 2 layers of 0.4mm of 2mm again, 1 layer of 0.2mm glass fabric.Resin is converted by this example, cast at twice on the mould of recessed formula, fix, treat that the resin solidification rear demoulding promptly is a finished product with ready-made plastic plate patrix.Operating principle: adopting the reason of cage of reinforcement in technology is that the impact strength of structural steel is 150 joules/centimetre ²More high than cast iron, than 10～30 joules/centimetre of glass fiber reinforced plastic ²Exceed more than 5～10 times.It is relatively poor so just can to overcome the glass fiber reinforced plastic shock resistance, easily the weakness of embrittlement.Simultaneously, the specific strength 1600 of glass fiber reinforced plastic.Than the specific strength 500 of steel, the specific strength 320 of cast iron exceeds several times advantage, adopts structural iron and glass fiber reinforced plastic in conjunction with being exactly mutual supplement with each other's advantages, strong combination like this.Drawback just overcomes.Supporting power improves greatly.Just can solve Ma Hulugai and not lose not bad problem.

Claims

1, well grate under the cage of reinforcement glass fiber reinforced plastic is characterized in that: the cage of reinforcement (2) that includes same shape under the glass fiber reinforced plastic in the well grate (1).

2, well grate under the cage of reinforcement glass fiber reinforced plastic according to claim 1 is characterized in that: cage of reinforcement (2) outside is tied with chopped mat, and chopped mat is outward a glass fabric, and outermost layer is a fiber glass resin.