CN201031395Y - Steel grating plastic coated manhole cover board - Google Patents
Steel grating plastic coated manhole cover board Download PDFInfo
- Publication number
- CN201031395Y CN201031395Y CNU2007200367694U CN200720036769U CN201031395Y CN 201031395 Y CN201031395 Y CN 201031395Y CN U2007200367694 U CNU2007200367694 U CN U2007200367694U CN 200720036769 U CN200720036769 U CN 200720036769U CN 201031395 Y CN201031395 Y CN 201031395Y
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- plastic
- rubber
- stratum granulosum
- steel grating
- particle
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Abstract
The utility model relates to a manhole cover of steel grilles covered by plastic, used to serve as the manhole cover for an upper hose and a downcomer. The utility model is compounded by the upper granular layer of rubber plastic (1), the lower granular layer of rubber plastic (2) and a middle steel grille layer (3). Because the holistic steel grilles serve as the framework and the three layers are integrated, the manhole cover of steel grilles covered by plastic has the advantages of strong intension, impact resistance, low cost and security. The particles in the upper and the lower granular layers of rubber plastic are distributed to a net shape; therefore the upper and the lower granular layers of rubber plastic have milipores which provide a good water permeability for the utility model.
Description
Technical field:
The utility model relates to a kind of cover plate of manhole, especially relates to the plastic cover plate of manhole of a kind of steel grating.The inspection shaft that is used for upper and lower waterpipe is made cover plate.Metal conduit accessory technical field.
At present, the employed cover plate of manhole of upper and lower waterpipe mainly contains two big classes: a class is reinforcing bar and concrete composite structure, and intensity is low, and is not shock-resistant, do not seep water; Another kind of is that individual layer is castiron, and intensity is higher, but not shock-resistant yet, do not seep water, cost is high again, and is stolen easily.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of intensity height, the plastic cover plate of manhole of steel grating shock-resistant, that seepage of water good, cost is low again are provided.
The purpose of this utility model is achieved in that the plastic cover plate of manhole of a kind of steel grating, and it is to be composited by last rubber and plastic stratum granulosum, following rubber and plastic stratum granulosum and middle steel grating.
The plastic cover plate of manhole of the utility model steel grating, described steel grating is made by flat iron bar, is folded between the upper and lower rubber and plastic stratum granulosum, works to strengthen skeleton.
The plastic cover plate of manhole of the utility model steel grating, the described particle diameter of going up rubber and plastic stratum granulosum particle is 12～20 orders; The particle diameter of following rubber and plastic stratum granulosum particle is 2～8 orders, and the particle of the particle of last rubber and plastic stratum granulosum and following rubber and plastic stratum granulosum all is net structure and distributes in corresponding upper and lower rubber and plastic stratum granulosum.
The plastic cover plate of manhole of the utility model steel grating is owing to there is the steel grating of an integral body to make skeleton, and upper and lower rubber and plastic stratum granulosum and middle steel grating skeleton are combined into one, and has intensity height, shock-resistant, characteristics such as cost is low, unmanned robber.And, because the particle in the upper and lower rubber and plastic stratum granulosum all is net distribution, therefore all there is micropore in the upper and lower rubber and plastic stratum granulosum, seepage of water is good, and water outlet is fast.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of the plastic cover plate of manhole of the utility model steel grating.
Fig. 2 is a steel grating structural representation of the present utility model.
Among the figure: go up rubber and plastic stratum granulosum 1, following rubber and plastic stratum granulosum 2, steel grating 3.
The specific embodiment
Referring to Fig. 1, the plastic cover plate of manhole of the utility model steel grating is composited by last rubber and plastic stratum granulosum 1, following rubber and plastic stratum granulosum 2 and middle steel grating 3.The described rubber and plastic stratum granulosum 1 of going up is different with following rubber and plastic stratum granulosum 2 composition particle grain size: go up the more fine grain rubber and plastic particle of rubber and plastic stratum granulosum 1 usefulness and make the more coarse grained rubber and plastic particle of following rubber and plastic stratum granulosum 2 usefulness.The particle diameter of last rubber and plastic stratum granulosum particle 11 is 12～20 orders; The particle diameter of following rubber and plastic stratum granulosum particle 21 is 2～8 orders.The particle 11 of last rubber and plastic stratum granulosum 1 and the particle 21 of following rubber and plastic stratum granulosum 2 all are net structure and distribute in corresponding upper and lower rubber and plastic stratum granulosum 1,2.
Referring to Fig. 2, described steel grating 3 is made by band iron, places between rubber and plastic stratum granulosum 1 and the following rubber and plastic stratum granulosum 2.
Claims (3)
1. the plastic cover plate of manhole of steel grating is characterized in that it is to be composited by last rubber and plastic stratum granulosum (1), following rubber and plastic stratum granulosum (2) and middle steel grating (3).
2. the plastic cover plate of manhole of a kind of steel grating according to claim 1 is characterized in that: described steel grating (3) is made by flat iron bar.
3. the plastic cover plate of manhole of a kind of steel grating according to claim 1 and 2 is characterized in that: the described particle diameter of going up rubber and plastic stratum granulosum particle (11) is 12～20 orders; The particle diameter of following rubber and plastic stratum granulosum particle (21) is 2～8 orders, and the particle (11) of last rubber and plastic stratum granulosum (1) and the particle (21) of following rubber and plastic stratum granulosum (2) all are net structure and distribute in corresponding upper and lower rubber and plastic stratum granulosum (1), (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200367694U CN201031395Y (en) | 2007-04-25 | 2007-04-25 | Steel grating plastic coated manhole cover board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200367694U CN201031395Y (en) | 2007-04-25 | 2007-04-25 | Steel grating plastic coated manhole cover board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031395Y true CN201031395Y (en) | 2008-03-05 |
Family
ID=39163287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200367694U Expired - Fee Related CN201031395Y (en) | 2007-04-25 | 2007-04-25 | Steel grating plastic coated manhole cover board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031395Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019479A (en) * | 2015-07-30 | 2015-11-04 | 常州南夏墅建设有限公司 | High-strength inspection well lid for urban road |
-
2007
- 2007-04-25 CN CNU2007200367694U patent/CN201031395Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019479A (en) * | 2015-07-30 | 2015-11-04 | 常州南夏墅建设有限公司 | High-strength inspection well lid for urban road |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20100425 |