CN102795433A - Normally press and normally open type sealed manhole device with curved surface and folded edge - Google Patents
Normally press and normally open type sealed manhole device with curved surface and folded edge Download PDFInfo
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- CN102795433A CN102795433A CN2012103165295A CN201210316529A CN102795433A CN 102795433 A CN102795433 A CN 102795433A CN 2012103165295 A CN2012103165295 A CN 2012103165295A CN 201210316529 A CN201210316529 A CN 201210316529A CN 102795433 A CN102795433 A CN 102795433A
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- manhole
- curved surface
- cover
- bending curve
- manhole cover
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Abstract
The invention discloses a normally press and normally open type sealed manhole device with a curved surface and a folded edge. The manhole device comprises a manhole cylindrical section, a manhole cover and a manhole gasket, wherein the manhole cylindrical section comprises a cylindrical wall; the manhole cover is arranged at one end of the manhole cylindrical section; a cylindrical wall curved surface which is bent outwards is arranged at one end of the cylindrical wall where the manhole cover is located; the manhole cover is provided with a manhole curved surface with a corresponding curvature to correspond to the cylindrical wall curved surface at the position corresponding to the manhole cylindrical section; and an air-tight sealed manhole gasket is arranged between the cylindrical wall curved surface and the manhole cover curved surface. As the corresponding positions of the manhole cover and the manhole cylindrical section are provided with the curved surfaces, sealing performance of the manhole cylindrical section is improved greatly; and the normally press and normally open type sealed manhole device with the curved surface and the folded edge, disclosed by the invention, is simple in structure and easy to detach.
Description
Technical field
The present invention relates to a kind of manhole device, relate in particular to a kind of be used for that petrochemical unit adopts the manhole device.
Background technology
On the normal pressure equipment of industries such as oil and chemical industry; The manhole that is used for device interior maintenance and inspection all adopts sunken manhole; The manhole of this pattern exists the sealing surface working accuracy not high; Long-time use can cause the situation that material is revealed in the equipment to take place, in addition its to adopt a fairly large number of bolt to carry out fastening, dismounting and install very loaded down with trivial details; Sunken manhole thicker under micro-vacuum state in addition, weight is big, and cost is high, and dismounting is loaded down with trivial details.This novel patent has been optimized structure well, provide cost savings, and simple dismounting is highly suitable for manhole with mounting structure and needs the often occasion of unlatching.
In the normal pressure manhole, generally adopt flat cover to be connected, the manhole of this pattern with cylinder; Flat cover simple in structure, that processing and fabricating convenience, particularly end seal are used; Basically all be to adopt the sheet material machinework to form, design and difficulty of processing are very little, but this manhole structure also exists the sealing surface working accuracy not high; Use for a long time and cause the situation of material leakage in the equipment to take place, fastening owing to adopting a fairly large number of bolt to carry out in addition, dismounting and installation are very loaded down with trivial details.
In the occasion that manhole is often opened, poor sealing, and manhole is opened the Bolt dismantling of front and back and is installed very inconvenient; Reason is that the power that flat cover is applied on the gasket seal sealed, and has only place's sealing surface, often opens after sealing was mainly tightened by bolt, and too much when mounted bolted connection can cause local predetermincd tension not enough, and leak tightness is lower.
Summary of the invention
The present invention provides a kind of manhole device, and this device accomplishes not have any leakage in the occasion that manhole needs often to open, and satisfies the use that the sealing requirements occasion is arranged, and Assembly &Disassembly is quick and convenient simultaneously.
Above technique effect is realized through following technical proposals of the present invention:
The present invention provides a kind of manhole device; Said manhole device comprises manhole shell ring, manhole cover and manhole pad; The manhole shell ring has barrel; Manhole cover places an end of manhole shell ring; Said barrel has bandy barrel bending curve at an end that is positioned at manhole cover, and the manhole cover bending curve that said manhole cover and said manhole shell ring relevant position have corresponding curvature corresponding to said barrel bending curve has the manhole pad of gas tight seal between said barrel bending curve and said manhole cover bending curve.
Preferably, the sinuousness of said barrel bending curve and said manhole cover bending curve is not less than 180 degree.
Preferably, the manhole pad adopts and to have the gas tight seal performance and resistant to corrosion metal, rubber or resin material are processed.
Preferably, adopt anchor ear to carry out fastening to said barrel bending curve and said manhole cover bending curve.
Preferably, said manhole pad is identical with the material of said manhole shell ring and/or manhole cover.
Description of drawings
Fig. 1 is a curved surface flanging sealing manhole device's according to the invention structural representation
The specific embodiment
As shown in Figure 1; A kind of manhole device comprises manhole shell ring 5, manhole cover 6 and manhole pad 4; Manhole shell ring 5 has barrel 1; Manhole cover 6 places an end of manhole shell ring 5; Said barrel 1 has bandy barrel bending curve at an end that is positioned at manhole cover 6, and said manhole cover 6 and the manhole cover bending curve that said manhole shell ring 5 relevant positions have corresponding curvature corresponding to said barrel bending curve have the manhole pad 4 of gas tight seal between said barrel bending curve and said manhole cover bending curve.
Because the present invention adopted the bending curve of manhole cover and manhole shell ring relevant position, thereby increased the sealing property of manhole shell ring greatly, and this is simple in structure and be easy to dismantle.It is fastening further to adopt anchor ear to carry out at said barrel bending curve and said manhole cover bending curve, has also increased manhole device's stability and sealing property more.
Above embodiment further specifies of the present invention, and those skilled in the art are that above-mentioned explanation is not limited to protection scope of the present invention with being to be understood that.
Claims (5)
1. manhole device; Said manhole device comprises manhole shell ring, manhole cover and manhole pad; The manhole shell ring has barrel; Manhole cover places an end of manhole shell ring; Said barrel has bandy barrel bending curve at an end that is positioned at manhole cover, and the manhole cover bending curve that said manhole cover and said manhole shell ring relevant position have corresponding curvature corresponding to said barrel bending curve has the manhole pad of gas tight seal between said barrel bending curve and said manhole cover bending curve.
2. manhole device according to claim 1, the sinuousness of wherein said barrel bending curve and said manhole cover bending curve is not less than 180 degree.
3. manhole device according to claim 1, said manhole pad employing has the gas tight seal performance and resistant to corrosion metal, rubber or resin material are processed.
4. according to the arbitrary described manhole device of claim 1-3, adopt anchor ear to carry out fastening to said barrel bending curve and said manhole cover bending curve.
5. manhole device according to claim 1, said manhole pad is identical with the material of said manhole shell ring and/or manhole cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103165295A CN102795433A (en) | 2012-08-31 | 2012-08-31 | Normally press and normally open type sealed manhole device with curved surface and folded edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103165295A CN102795433A (en) | 2012-08-31 | 2012-08-31 | Normally press and normally open type sealed manhole device with curved surface and folded edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102795433A true CN102795433A (en) | 2012-11-28 |
Family
ID=47194784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103165295A Pending CN102795433A (en) | 2012-08-31 | 2012-08-31 | Normally press and normally open type sealed manhole device with curved surface and folded edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102795433A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523415A (en) * | 2013-10-23 | 2014-01-22 | 昆山市盛兴设备安装有限公司 | Sealing barrel |
| CN108438575A (en) * | 2018-06-04 | 2018-08-24 | 东营万邦石油科技有限责任公司 | Quick opening manhole's integrated apparatus that is a kind of environment-friendly dustless and preventing to fly material damage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078423A (en) * | 1991-12-26 | 1993-11-17 | 精密阀门公司 | The improved seal strip that is used for aerosol mounting cap |
| FR2702451A1 (en) * | 1993-03-10 | 1994-09-16 | Giraud Bernard | Fast clamping system for manhole closing |
| CN1162948A (en) * | 1995-08-10 | 1997-10-22 | 株式会社大阪造船所 | Lid mounting structure for pressure vessel |
| JP2002225981A (en) * | 2001-01-26 | 2002-08-14 | Kyoritsu Butsuryu System:Kk | Lid structure for tank |
| CN201280280Y (en) * | 2008-06-04 | 2009-07-29 | 攀枝花钢企恒升包装制品有限公司 | Steel drum for packaging titanium sponge |
| CN202089487U (en) * | 2011-05-23 | 2011-12-28 | 福托伟阀门(上海)有限公司 | Manhole cover |
-
2012
- 2012-08-31 CN CN2012103165295A patent/CN102795433A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078423A (en) * | 1991-12-26 | 1993-11-17 | 精密阀门公司 | The improved seal strip that is used for aerosol mounting cap |
| FR2702451A1 (en) * | 1993-03-10 | 1994-09-16 | Giraud Bernard | Fast clamping system for manhole closing |
| CN1162948A (en) * | 1995-08-10 | 1997-10-22 | 株式会社大阪造船所 | Lid mounting structure for pressure vessel |
| JP2002225981A (en) * | 2001-01-26 | 2002-08-14 | Kyoritsu Butsuryu System:Kk | Lid structure for tank |
| CN201280280Y (en) * | 2008-06-04 | 2009-07-29 | 攀枝花钢企恒升包装制品有限公司 | Steel drum for packaging titanium sponge |
| CN202089487U (en) * | 2011-05-23 | 2011-12-28 | 福托伟阀门(上海)有限公司 | Manhole cover |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523415A (en) * | 2013-10-23 | 2014-01-22 | 昆山市盛兴设备安装有限公司 | Sealing barrel |
| CN108438575A (en) * | 2018-06-04 | 2018-08-24 | 东营万邦石油科技有限责任公司 | Quick opening manhole's integrated apparatus that is a kind of environment-friendly dustless and preventing to fly material damage |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121128 |