CN2302292Y - Composite material antitheft cover for manhole - Google Patents
Composite material antitheft cover for manhole Download PDFInfo
- Publication number
- CN2302292Y CN2302292Y CN 97236278 CN97236278U CN2302292Y CN 2302292 Y CN2302292 Y CN 2302292Y CN 97236278 CN97236278 CN 97236278 CN 97236278 U CN97236278 U CN 97236278U CN 2302292 Y CN2302292 Y CN 2302292Y
- Authority
- CN
- China
- Prior art keywords
- layer
- enhancement layer
- composite material
- manhole
- utility
- 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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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a composite material antitheft cover for a manhole, comprising an upper surface layer, an upper enhancement layer, reinforcing ribs, a lower enhancement layer, an upper and a lower filling layers and a bottom layer. The utility model is characterized in that the upper surface layer, the upper enhancement layer, the upper filling layer, the lower enhancement layer, the lower filling layer and the bottom layer are orderly and naturally affixed by the self colloid. Because of the function of the upper and the lower filling layers, the strength of the device is ensured. Because the composite material antitheft cover for the manhole has no material for recovery and utilization, the occurrence of the theft event can be thoroughly solved.
Description
The utility model relates to road communal facilities inspection shaft lid arrangement, especially anti-stealing manhole lid arrangement.
In the prior art, generally all adopt inspection shaft to cover increase mechanical lock anti-theft device at former cast iron materials.This device is in case after being understood its structure, always have the way of unblanking.The theft preventing method of this passive type is hard to guard against often.
The internal construction that the purpose of this utility model is to change the inspection shaft lid with and material, thereby make the no recovery value of this device.
Technical solution of the present utility model is: a kind of composite material anti-stealing manhole cover, it comprises upper epidermis, go up enhancement layer, reinforcing rib, enhancement layer, packed layer and bottom up and down down, it is characterized in that by upper epidermis, go up enhancement layer, packed layer, down enhancement layer, packed layer and bottom like this order utilize self colloid bonding naturally.Because the up and down effect of enhancement layer, not only guaranteed the intensity of this device but also because of the material of the no recyclable utilization of this device, so solved the generation of pilferage incident up hill and dale.
The utility model is described in further detail in conjunction with the accompanying drawings.
Fig. 1 is a structural representation of the present utility model.
When manufacturing at normal temperatures, the utility model in template, is paved into upper epidermis 1 earlier with rich resin, the glass cloth that scribbles resin with the two sides forms enhancement layer 2 and fits with upper epidermis 1 again, the last packed layer 3 that microlith and mixed with resin are formed is fitted with last enhancement layer 2 again, be installed with metal reinforcing 4 in the packed layer 3, thereafter scribble enhancement layer 5 and following packed layer 3 applyings under the wave that the glass cloth of resin forms with the two sides again, repave down packed layer 7 at last with rich resin floating formation bottom 6 on following packed layer 7, mould according to different can be made into different shape.
The utility model has the advantage of that two increase layer, one of them makes waveform, Thereby also increase the intensity that reinforcement has been strengthened this device; Because thick in this device useful space Add at a low price inserts in the degree, not only guaranteed thickness but also saved materials funds, particularly should Install no recyclable material, therefore thoroughly stopped the generation of the event of stealing.
Claims (3)
1, composite material anti-stealing manhole cover, it is characterized in that by upper epidermis 1 last enhancement layer 2, following enhancement layer 5,6 times packed layers of last packed layer 3 and bottom 7 are formed, and by upper epidermis 1, go up enhancement layer 2, go up packed layer 3, down enhancement layer 5, down packed layer 7 and bottom 6 order is sticking like this is an integral body.
2, composite material anti-stealing manhole cover according to claim 1 is characterized in that: be installed with metal reinforcing 4 in the packed layer 3.
3, composite material anti-stealing manhole cover according to claim 1 is characterized in that: following enhancement layer 5 is made wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236278 CN2302292Y (en) | 1997-06-11 | 1997-06-11 | Composite material antitheft cover for manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236278 CN2302292Y (en) | 1997-06-11 | 1997-06-11 | Composite material antitheft cover for manhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302292Y true CN2302292Y (en) | 1998-12-30 |
Family
ID=33947180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236278 Expired - Fee Related CN2302292Y (en) | 1997-06-11 | 1997-06-11 | Composite material antitheft cover for manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302292Y (en) |
-
1997
- 1997-06-11 CN CN 97236278 patent/CN2302292Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |