CN203727981U - Double-layer manhole cover - Google Patents
Double-layer manhole cover Download PDFInfo
- Publication number
- CN203727981U CN203727981U CN201420125555.4U CN201420125555U CN203727981U CN 203727981 U CN203727981 U CN 203727981U CN 201420125555 U CN201420125555 U CN 201420125555U CN 203727981 U CN203727981 U CN 203727981U
- Authority
- CN
- China
- Prior art keywords
- cover
- flange
- grommet
- punching press
- lining 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.)
- Expired - Lifetime
Links
- 238000004080 punching Methods 0.000 claims abstract description 28
- 239000012774 insulation material Substances 0.000 claims abstract description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a double-layer manhole cover, which comprises a punching upper cover, wherein a circle of downwards extending first flange is formed at the edge part of the punching upper cover in a punching way, an inner opening of the first flange is matched with a cover lining ring, the bottom of the cover lining ring is provided with an annular sealing groove, the inner circle of the cover lining ring is provided with a lower cover, a circle of upwards extending second flange is formed at the edge part of the lower cover in a punching way, the second flange is matched with the inner ring of the cover lining ring, the cover lining ring and the first flange are fixedly welded, the cover lining ring and the second flange are fixedly welded, a cavity is formed between the punching upper cover and the longitudinal direction of the lower cover, and heat insulation materials are arranged in the cavity. The manhole cover provided by the utility model has the advantages that the double-layer structure is adopted, in addition, a heat insulation layer is formed in the cavity, the influence of external temperature on objects in a tank can be effectively prevented, the quality of special media conveyed by containerized tanks is improved, and the material consumption in the transportation process can be reduced.
Description
Technical field
The utility model relates to a kind of sealing element, particularly a kind of for sealing the manhole cover of manhole structure on bulk bin or tank car.
Background technology
At present bulk bin (taking cement bulk tank and each oil tank as representative) and tank container all can configure one or more manholes, be convenient to people enter in tank and clean, safeguard and check by manhole, replace inlet point if desired, lifting charging ability with manhole.On manhole, be provided with manhole cover, at charging rear enclosed manhole.And existing manhole cover is single layer structure, do not possess effect of heat insulation, while causing transporting special media goods, in tank, medium temperature influence is larger.Separately having double-deck manhole is to weld after direct two block plate punch formings, and seal groove is straight forming in the middle of punching course, though production technology is simple, but easily come off because punching press fillet causes the seal ring in seal groove, and it is larger affected by welding deformation;
Utility model content
For above-mentioned prior art, the technical problems to be solved in the utility model is to be single layer structure in order to overcome bulk bin manhole cover of the prior art, do not possess effect of heat insulation, while causing transporting special media goods, in tank, the defect of article temperature influence, provides a kind of manhole cover for bulk bin or tank car.
In order to solve the problems of the technologies described above, a kind of double-deck manhole cover of the utility model, comprise punching press upper cover, edge's punching press of described punching press upper cover is formed with circle first flange to downward-extension, the internal orifice adaptation of described the first flange has a lid grommet, the bottom of described lid grommet is provided with an annular seal groove, the inner ring of described lid grommet is provided with a lower cover, edge's punching press of described lower cover is formed with upwardly extending circle second flange, described the second flange matches with the inner ring of described lid grommet, between described lid grommet and described the first flange, between described lid grommet and described the second flange, all adopt and be welded and fixed, described punching press upper cover and described lower cover longitudinally between form a chamber, in described chamber, be provided with thermal insulation material.
Wherein, the center of top of described punching press upper cover is sphere crowned.
Compared with prior art, the beneficial effects of the utility model are:
Manhole cover of the present utility model adopts double-decker, thereby and in chamber, be provided with thermal insulation material form thermal insulation layer, effectively prevent the impact of external temperature on article in tank, improved the quality of the transport special media of bulk bin, reduce the article loss in transportation.
Brief description of the drawings
Fig. 1 is the cutaway view of the double-deck manhole cover of the utility model;
Fig. 2 is the cutaway view of lower cover shown in Fig. 1.
In figure:
1-punching press upper cover, 11-the first flange, 2-covers grommet, 21-seal groove, 3-lower cover, 31-the second flange, 4-chamber.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in further detail.
As shown in Figure 1, a kind of double-deck manhole cover of the utility model, comprise punching press upper cover 1, edge's punching press of described punching press upper cover 1 is formed with circle first flange 11 to downward-extension, the center of top of described punching press upper cover 1 is sphere crowned, the direct punch forming of steel plate that this punching press upper cover 1 can be selected appropriate size, the internal orifice adaptation of described the first flange 11 has a lid grommet 2, the bottom turning of described lid grommet 2 forms an annular seal groove that Open Side Down 21, the inner ring of described lid grommet 2 is provided with a lower cover 3, edge's punching press of described lower cover 3 is formed with upwardly extending circle second flange 31, lower cover 3 also can adopt the direct punch forming of steel plate, described the second flange 31 matches with the inner ring of described lid grommet 2, between described lid grommet 2 and described the first flange 11, between described lid grommet 2 and described the second flange 31, all adopt and be welded and fixed, after described punching press upper cover 1,3 assemblings of lid grommet 2 and lower cover, between described punching press upper cover 1 and described lower cover 3 longitudinal, form a chamber 4, in described chamber 4, be provided with thermal insulation material, such as, in chamber 4, be equipped with the thermal insulation layer made from vacuum material.Certain described thermal insulation layer also can adopt foamed plastic or lamination coating to make.Described vacuum material and described lamination coating are prior art, do not repeat them here.
Although the utility model is described in conjunction with figure above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that not departing from the utility model aim, can also make a lot of distortion, within these all belong to protection of the present utility model.
Claims (2)
1. a double-deck manhole cover, comprise punching press upper cover (1), it is characterized in that, edge's punching press of described punching press upper cover (1) is formed with circle first flange (11) to downward-extension, the internal orifice adaptation of described the first flange (11) has a lid grommet (2), the bottom of described lid grommet (2) is provided with an annular seal groove (21), the inner ring of described lid grommet (2) is provided with a lower cover (3), edge's punching press of described lower cover (3) is formed with upwardly extending circle second flange (31), described the second flange (31) matches with the inner ring of described lid grommet (2), between described lid grommet (2) and described the first flange (11), between described lid grommet (2) and described the second flange (31), all adopt and be welded and fixed, described punching press upper cover (1) and described lower cover (3) longitudinally between form a chamber (4), described chamber is provided with thermal insulation material in (4).
2. double-deck manhole cover according to claim 1, is characterized in that, the center of top of described punching press upper cover (1) is sphere crowned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125555.4U CN203727981U (en) | 2014-03-19 | 2014-03-19 | Double-layer manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125555.4U CN203727981U (en) | 2014-03-19 | 2014-03-19 | Double-layer manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203727981U true CN203727981U (en) | 2014-07-23 |
Family
ID=51198071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125555.4U Expired - Lifetime CN203727981U (en) | 2014-03-19 | 2014-03-19 | Double-layer manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203727981U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555164A (en) * | 2014-12-26 | 2015-04-29 | 西安轨道交通装备有限责任公司 | Integral insulation manhole of tank car |
| RU184684U1 (en) * | 2018-08-23 | 2018-11-06 | РЕЙЛ 1520 АйПи ЛТД | COVER OF THE HATCH OF THE CAR Wagon |
| CN110654734A (en) * | 2019-10-24 | 2020-01-07 | 徐州科恒奥制冷设备有限公司 | Manhole cover |
| SE2350227A1 (en) * | 2023-02-28 | 2023-11-14 | Delaval Holding Ab | Manhole cover for a milk cooling tank |
-
2014
- 2014-03-19 CN CN201420125555.4U patent/CN203727981U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555164A (en) * | 2014-12-26 | 2015-04-29 | 西安轨道交通装备有限责任公司 | Integral insulation manhole of tank car |
| RU184684U1 (en) * | 2018-08-23 | 2018-11-06 | РЕЙЛ 1520 АйПи ЛТД | COVER OF THE HATCH OF THE CAR Wagon |
| CN110654734A (en) * | 2019-10-24 | 2020-01-07 | 徐州科恒奥制冷设备有限公司 | Manhole cover |
| SE2350227A1 (en) * | 2023-02-28 | 2023-11-14 | Delaval Holding Ab | Manhole cover for a milk cooling tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-layer manhole cover Effective date of registration: 20150421 Granted publication date: 20140723 Pledgee: The Bank of Cangzhou branch of Yuhe Limited by Share Ltd. Pledgor: HEBEI GUANGDE FLUID CONTROL LTD. Registration number: 2015990000306 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |