CN102225701A - Fireproof manhole cover - Google Patents
Fireproof manhole cover Download PDFInfo
- Publication number
- CN102225701A CN102225701A CN2011101146026A CN201110114602A CN102225701A CN 102225701 A CN102225701 A CN 102225701A CN 2011101146026 A CN2011101146026 A CN 2011101146026A CN 201110114602 A CN201110114602 A CN 201110114602A CN 102225701 A CN102225701 A CN 102225701A
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- CN
- China
- Prior art keywords
- cover plate
- fireproof
- cover
- manhole
- seat ring
- 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.)
- Pending
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Abstract
The invention relates to a fireproof manhole cover. The fireproof manhole cover comprises a cover board. The fireproof manhole cover is characterized in that the cover board is formed by welding an upper cover board and a lower cover board between which a cavity is reserved, and a fireproof layer is filled in the cavity. The fireproof manhole cover has the advantages that the cover board is formed by welding the upper cover board and the lower cover board, and the fireproof layer is filled in the cavity between the upper and lower cover boards, therefore, the cover board has good fireproof performance without being replaced by a fireproof door; and the manufacturing cost is reduced, and the market competitive of shipbuilding enterprises is improved.
Description
Technical field
The present invention relates to a kind of fire prevention manhole cover, as the door of the ship's space that does not need in the boats and ships often to enter.
Background technology
Do not need the ship's space that often enters in the boats and ships, for example ballast tank, fuel oil tank or empty cabin etc. adopt manhole cover to replace steel door to avoid dead cabin usually.In the process of making boats and ships, when the above-mentioned ship's space manufacturing fire-protection rating that seldom enters was the fireproof bulkhead of A60 level, common manhole cover did not have fire-proof function if desired, must adopt fire protection gate to substitute, if use fire protection gate, the perforated area of bulkhead is bigger, and manufacturing cost is higher.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of manhole cover with fire-proof function.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of fire prevention manhole cover, comprise cover plate, and it is characterized in that: described cover plate is welded to form by upper cover plate and lower cover, leaves cavity between described upper cover plate and the lower cover, is filled with fireprotection layer in the cavity.
Described fireprotection layer is two-layer at least aluminium silicate felt.
Also be provided with the following peripheral cooresponding seat ring with described cover plate, on this seat ring, be provided with a circle tapped bore, on described cover plate, be provided with and the cooresponding through hole of this tapped bore; This seat ring is welded on the outside of the outer of the manhole of leaving on the wallboard of ship's space, seat ring and cover plate are connected and fixed by bolt or double end stud and nut.
The invention has the advantages that: cover plate has upper and lower cover plate to be welded to form, cavity between upper and lower cover plate is filled fireprotection layer, makes cover plate have excellent fireproof performance, need not to use fire protection gate to substitute, reduce manufacturing cost, improved the market competitiveness of boats and ships enterprises.Adopt the mounting structure of seat ring and cover plate, simplified mounting process, improved the bulk strength of cover plate.
Description of drawings
Fig. 1 is prevent fires structure (semi-sictional view of the installation) scheme drawing in the manhole cover outside of the present invention;
Fig. 2 is along A-A line cutaway view among Fig. 1.
The specific embodiment
As shown in Figure 1, 2, the present invention relates to a kind of fire prevention manhole cover, comprise cover plate, this cover plate is welded to form by upper cover plate 1 and lower cover 2, and lower cover 2 cross-sectional planes are the grooved that opening makes progress, and leaves cavity between upper cover plate 1 and the lower cover 2 welding backs, be filled with fireprotection layer 3 in the cavity, this fireprotection layer 3 is the aluminium silicate felt, and the aluminium silicate felt has at least two-layer, and upper-lower overlapping constitutes.Be provided with handle 9 in the outside of upper cover plate 1.
Open manhole on the wallboard 7 of ship's space, on the wallboard 7 of manhole outer, be welded with seat ring 4, this seat ring 4 is provided with a circle tapped bore 8, is provided with a circle and seat ring 4 tapped bore 8 cooresponding through holes on described cover plate, and seat ring 4 is connected and fixed by double end stud 5 and nut 6 with cover plate.
Claims (3)
1. a fire prevention manhole cover comprises cover plate, and it is characterized in that: described cover plate is welded to form by upper cover plate and lower cover, leaves cavity between described upper cover plate and the lower cover, is filled with fireprotection layer in the cavity.
2. fire prevention manhole cover according to claim 1 is characterized in that: described fireprotection layer is two-layer at least aluminium silicate felt.
3. fire prevention manhole cover according to claim 1 is characterized in that: also be provided with the following peripheral cooresponding seat ring with described cover plate, be provided with a circle tapped bore on this seat ring, be provided with on described cover plate and the cooresponding through hole of this tapped bore; This seat ring is welded on the outside of the outer of the manhole of leaving on the wallboard of ship's space, seat ring and cover plate are connected and fixed by bolt or double end stud and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101146026A CN102225701A (en) | 2011-05-05 | 2011-05-05 | Fireproof manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101146026A CN102225701A (en) | 2011-05-05 | 2011-05-05 | Fireproof manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102225701A true CN102225701A (en) | 2011-10-26 |
Family
ID=44806716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101146026A Pending CN102225701A (en) | 2011-05-05 | 2011-05-05 | Fireproof manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102225701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434613A (en) * | 2013-08-20 | 2013-12-11 | 张晓荣 | Manhole device with inspection hole |
| CN106080970A (en) * | 2016-08-21 | 2016-11-09 | 无锡宝宏船舶机械有限公司 | Clean-out cover peculiar to vessel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201395232Y (en) * | 2009-04-20 | 2010-02-03 | 宋勇荣 | Fireproof water tight hatch cover |
| CN201420489Y (en) * | 2009-04-20 | 2010-03-10 | 江苏省金鑫安防设备有限公司 | Steel fireproof door |
-
2011
- 2011-05-05 CN CN2011101146026A patent/CN102225701A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201395232Y (en) * | 2009-04-20 | 2010-02-03 | 宋勇荣 | Fireproof water tight hatch cover |
| CN201420489Y (en) * | 2009-04-20 | 2010-03-10 | 江苏省金鑫安防设备有限公司 | Steel fireproof door |
Non-Patent Citations (1)
| Title |
|---|
| 蒋寿恺: "《船舶舾装》", 30 June 1979 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434613A (en) * | 2013-08-20 | 2013-12-11 | 张晓荣 | Manhole device with inspection hole |
| CN106080970A (en) * | 2016-08-21 | 2016-11-09 | 无锡宝宏船舶机械有限公司 | Clean-out cover peculiar to vessel |
| CN106080970B (en) * | 2016-08-21 | 2017-11-28 | 无锡宝宏船舶机械有限公司 | Clean-out cover peculiar to vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111026 |