CN202672190U - Manhole cover - Google Patents
Manhole cover Download PDFInfo
- Publication number
- CN202672190U CN202672190U CN 201220014439 CN201220014439U CN202672190U CN 202672190 U CN202672190 U CN 202672190U CN 201220014439 CN201220014439 CN 201220014439 CN 201220014439 U CN201220014439 U CN 201220014439U CN 202672190 U CN202672190 U CN 202672190U
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- CN
- China
- Prior art keywords
- manhole cover
- rpc
- well lid
- steel
- stirrups
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a manhole cover which comprises steel edges, stirrups and an active powder concrete structure. The manhole cover is characterized in that the stirrups are arranged in the cylindrical steel edges in a cross mode, and the active powder structure is filled in a steel edge casing. The manhole cover improves structural shock-proof and impact-resistant performance, prolongs the structural service life, eliminates maintenance cost and reduces engineering building and using comprehensive cost.
Description
Technical field
The utility model relates to a kind of closing cap that leads to the top, access of underground installation, relates in particular to a kind of manhole cover.
Background technology
Along with the quickening of urbanization process step, the demand of the ancillary facility of newly-built residential quarter and road---well lid sharply increases.Well lid is the closure that leads to the top, access of underground installation, and the place of the communal facilitieies such as every installation tap water, telecommunications, electric power, combustion gas, heating power, fire-fighting, environmental sanitation all needs to install well lid.The well lid of existing domestic use mainly contains four classes: the metal well lid: cast iron, spheroidal graphite are prayed iron, bronze well lid etc.; Steel fibre concrete manhole; The regenerating resin well lid; Polymer-base composite material cover for inspection manhole.Wherein, steel fibre concrete manhole is divided into A, B, C, D level Four by supporting capacity.A level steel fiber concrete manhole cover is used for extraordinary road and the places such as airport.B level steel fiber concrete manhole cover is used for motor-driven vehicle going, the urban road of parking, highway and parking lot; C level steel fiber concrete manhole cover is used for slow lane, esidential building residential quarter internal channel and sidewalk; D level steel fiber concrete manhole cover is used for lane and the place that greenbelt and motor vehicles can not travel, park.And use now maximum well lids to be casting iron well lid, Resin man-hole cover and steel fibre concrete manhole, but all there is obvious shortcoming in they.Casting iron well lid has that intensity is high, good rigidity, shock resistance, the advantage such as corrosion-resistant, and shortcoming at first is that antitheft problem can't thoroughly solve always; That well lid is easily beated when vehicle crosses, the sound again, very large at night noise, affect resident living.The intensity of fabric reinforcement concrete manhole cover is than having improved more than 30% with the ordinary concrete manhole cover under the proportioning, and properties has approached castiron well cover.And fabric reinforcement concrete manhole cover has the advantages such as cost of manufacture is low, recovery value is little, antitheft, so it occupies certain deal in market, but its most obvious defective be heavy, open the shoulder difficulty, supporting capacity is inadequate.The recycled plastics manhole cover in use, especially in the situation that the higher vehicle of temperature constantly roll. creep can occur in manhole cover, causes the manhole cover middle part constantly to sink, and very causes to come off, and will produce very large potential safety hazard like this.RPC (RPC) is after high-strength, high performance concrete, the new material that develop the nineties in 20th century.It is the DSP material High Technique Concrete mutually compound with fiber reinforced material.RPC has high strength, high tenacity, high-durability, many premium properties such as environmental-protecting performance that the good workability of mixture, raw material form, and RPC had been applied to domestic high ferro sidewalk cover plate, cable trough cover boards in recent years.
Summary of the invention
The utility model purpose is to provide a kind of regular circle column structure manhole cover of the RPC of employing material.
A kind of manhole cover described in the utility model comprises: steel limit, stirrup, RPC structure is characterized in that: intersection is provided with stirrup in the cylinder steel limit; Be filled with the RPC structure in the housing of steel limit.
A kind of manhole cover described in the utility model has improved antidetonation and the shock resistance of structure, can the extending structure life-span, exempt maintenance cost, and reduce the comprehensive cost of engineering construction and use.
Description of drawings
Fig. 1 is described manhole cover sectional structure schematic diagram
Fig. 2 is described manhole cover cage construction schematic diagram
The specific embodiment
Below in conjunction with description of drawings the utility model is further elaborated.
A kind of manhole cover described in the utility model comprises: steel limit 1, stirrup 2, RPC structure 3 is characterized in that: cylinder steel limit 1 interior intersection is provided with stirrup 2; Be filled with RPC structure 3 in 1 housing of steel limit.
Described a kind of manhole cover, abandoning tradition steel fibre well lid fish belly shape structure, the service regeulations cylindrical structure, attractive in appearance and be convenient to production and transport, weight is light by 1/3rd than the steel fibre well lid, constructability.
Described a kind of manhole cover, because the RPC structure 3 that adopts has very high compressive strength and shear strength, the cross sectional shape that in structure design, can adopt thinner cross section or have novelty, thus make the light from anharmonic ratio ordinary concrete structure of RPC well lid.
Described a kind of manhole cover, RPC structure 3 have reduced thickness and the scope of interfacial transition zone.Reducing of aggregate size himself exists the probability of defective to reduce, and the defective of whole matrix also reduces.RPC ten minutes is closely knit, and porosity is extremely low, and it not only can stop radioactive substance to leak internally, and can resist the corrosion of outside corrosive medium, has improved on the whole system uniformity, intensity and durability.
Described a kind of manhole cover has can change design advantage.The high compact of RPC structure greatly reduces the consumption of stirrup and principal rod, can change flexibly hooping structure in other well lid of different intensity scale, even stirrup can be set.
Claims (1)
1. manhole cover, comprising: steel limit (1), stirrup (2), RPC structure (3) is characterized in that: intersect in the cylinder steel limit (1) and be provided with stirrup (2); Be filled with RPC structure (3) in the housing of steel limit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220014439 CN202672190U (en) | 2012-01-13 | 2012-01-13 | Manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220014439 CN202672190U (en) | 2012-01-13 | 2012-01-13 | Manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202672190U true CN202672190U (en) | 2013-01-16 |
Family
ID=47493099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220014439 Expired - Fee Related CN202672190U (en) | 2012-01-13 | 2012-01-13 | Manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202672190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804120A (en) * | 2016-05-13 | 2016-07-27 | 广州大学 | Colored drawing plastic reactive powder concrete composite well-cover |
| CN106337442A (en) * | 2016-10-26 | 2017-01-18 | 福建诚兴新材料科技有限公司 | Reactive powder concrete material manhole cover and manufacturing method thereof |
-
2012
- 2012-01-13 CN CN 201220014439 patent/CN202672190U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804120A (en) * | 2016-05-13 | 2016-07-27 | 广州大学 | Colored drawing plastic reactive powder concrete composite well-cover |
| CN106337442A (en) * | 2016-10-26 | 2017-01-18 | 福建诚兴新材料科技有限公司 | Reactive powder concrete material manhole cover and manufacturing method thereof |
| CN106337442B (en) * | 2016-10-26 | 2019-04-02 | 福建诚兴新材料科技有限公司 | A kind of Reactive Powder Concrete material inspection well lid and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160113 |