CN201411703Y - Sealing device for buoy - Google Patents
Sealing device for buoy Download PDFInfo
- Publication number
- CN201411703Y CN201411703Y CN200920085588XU CN200920085588U CN201411703Y CN 201411703 Y CN201411703 Y CN 201411703Y CN 200920085588X U CN200920085588X U CN 200920085588XU CN 200920085588 U CN200920085588 U CN 200920085588U CN 201411703 Y CN201411703 Y CN 201411703Y
- Authority
- CN
- China
- Prior art keywords
- soft rubber
- base
- sealing device
- ring
- rubber sealing
- 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
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Abstract
The utility model relates to a sealing device applied to a buoy, wherein, the sealing device comprises a shield bottom and a base, wherein, the shield bottom is arranged at the lower part of the buoy;the base is installed at the lower part of the periphery of the shield bottom; the sealing device is arranged on the lower end surface of the base; the differences are that the sealing device comprises two soft rubber seal rings provided with outward turned-over edges, and the soft rubber seal rings are installed on the outer rings of the base; an air chamber is formed on the end surface of the base between the two soft rubber seal rings; the air chamber is communicated with a pressure gas source through a vent hole and a control valve; and a hard rubber supporting cushion next to the two soft rubber seal rings is installed on an inner ring on the lower end surface of the base. The soft rubber seal rings can be rapidly jointed with a concrete apron baseplate of a dam under the action of hydraulic pressure, prevent water from seeping into the inner part of the buoy through normal pressure sealing or blocking leakage under pressure, and enable the inner part of the buoy to keep atmospheric pressure (normal pressure), so as to provide good working environment and conditions to operating personnel.
Description
Technical field
The utility model relates to a kind of sealing device that is applied to heavy cabinet, and the sealing device can provide band to press or the normal pressure sealing.
Background technology
Heavy cabinet is used for the inspection and the maintenance of the underwater concrete protection-apron base plate of rivers concrete dam.Heavy cabinet includes buoyancy tank and the personnel that link with it, logistics pipeline, the upper and lower side of pipeline connects respectively at the bottom of control room and the shield, is positioned at heavy cabinet at the bottom of the shield bottom, and the bottom surface periphery is provided with sealing device and directly contacts with the concrete apron base plate, make the inside and outside seal isolation that keeps of heavy cabinet, prevent to leak.The sealing performance of the used conventional rubber seal at present heavy cabinet bottom is out of question concerning smooth surface, but it is coarse for the concrete apron backplate surface, in the time of may having the situations such as concavo-convex fluctuating of undaform, conventional rubber seal is difficult to guarantee the sealing of heavy cabinet bottom, often need the inner compressed air that feeds of heavy cabinet to pressurize, be difficult to the normal pressure sealing that realizes that heavy cabinet is interior.
Summary of the invention
Technical problem to be solved in the utility model is to overcome deficiency that above-mentioned prior art exists and provides a kind of and have the contact seal performance so that keep the heavy cabinet sealing device of normal pressure sealing in the heavy cabinet.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: comprise at the bottom of the shield of heavy cabinet bottom and be installed in shield at the bottom of the base of periphery lower end, the lower surface of base is provided with sealing device, its difference is that described sealing device comprises that the two track tape that is installed in the base outer ring has the soft rubber sealing ring of outward flanging, on the base end face between the two road soft rubber sealing rings, offer air chamber, air chamber is connected with pressure gas source by air vent and control valve, and the inner ring in the base lower surface is close to two road soft rubber sealing rings and is installed on the hard rubber supporting pad.
Use of the present utility model and beneficial effect are: fall position back earlier by injecting compressed air in passage at heavy cabinet, with the water in the heavy cabinet by shield at the bottom of on sealing device and the slit between the concrete apron base plate blow down and sink the cabinet outside; Unload the compressed air of putting in the heavy cabinet then, the gas pressure in the heavy cabinet is communicated with atmosphere; Gas pressure in the heavy cabinet is an atmospheric pressure, the soft rubber sealing ring is quick and dam concrete protection-apron base plate applying under the effect of hydraulic pressure, to remedy the less gap between heavy cabinet and the dam concrete protection-apron base plate, stop water to heavy cabinet internal leak, promptly form the normal pressure sealing; If there is big gap at dam concrete protection-apron base plate place, sealing device place, the soft rubber sealing ring is fitted good inadequately with dam concrete protection-apron base plate under hydraulic action, can Compressed Gas be imported the air chamber of offering on the sealing device base through air vent by control valve, because the own characteristic and the arrangement of two road soft rubber sealing rings, Compressed Gas in air chamber more easily to heavy cabinet external leakage, playing prevention water equally is atmospheric pressure to the purpose of heavy cabinet internal leak and the gas pressure in the heavy cabinet of maintenance, promptly realizes being with means of press seals.And remain atmospheric pressure (normal pressure) in the heavy cabinet, thereby provide good working environment and condition for the operating personnel.
Description of drawings
Fig. 1 is the general structure and the user mode figure of heavy cabinet.
Fig. 2 is the broken section structure chart of an embodiment of the utility model, also is the I portion enlarged drawing among Fig. 1.
The specific embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Heavy cabinet comprises personnel channel 3 and material channel 4, in the upper end of personnel channel and material channel is control room 1, buoyancy tank 2 is installed at the middle part of personnel channel and material channel, the bottom connects at the bottom of the shield 5, the outside is installed on ballast 6 at the bottom of the shield, base 12 is installed in the periphery lower end at the bottom of the shield, the lower surface of base is provided with sealing device, described sealing device comprises that the two track tape that is installed in the base outer ring has the soft rubber sealing ring 7 of outward flanging, wherein the soft rubber sealing ring of outer course is fixing by side direction trim ring 13, interior road soft rubber sealing ring is fixing by bottom surface trim ring 8, soft rubber sealing ring cross section is trapezoidal, there is the flange of outside bending the lower end of soft rubber sealing ring, offer ring-shaped air chamber 11 on the base end face between the two road soft rubber sealing rings, the cross section of ring-shaped air chamber is rectangular, and air chamber is connected with pressure gas source by air vent 10 and control valve, be close to two road soft rubber sealing rings in the inboard of base lower surface and be installed on hard rubber supporting pad 9, play a part to support and further sealing.
Claims (3)
1, a kind of heavy cabinet sealing device, comprise at the bottom of the shield of heavy cabinet bottom and be installed in shield at the bottom of the base of periphery lower end, the lower surface of base is provided with sealing device, it is characterized in that described sealing device comprises that the two track tape that is installed in the base outer ring has the soft rubber sealing ring of outward flanging, on the base end face between the two road soft rubber sealing rings, offer air chamber, air chamber is connected with pressure gas source by air vent and control valve, and the inner ring in the base lower surface is close to two road soft rubber sealing rings and is installed on the hard rubber supporting pad.
2, by the described heavy cabinet sealing device of claim 1, the soft rubber sealing ring that it is characterized in that outer course in the two road soft rubber sealing rings is fixed by the side direction trim ring, interior road soft rubber sealing ring is fixed by the bottom surface trim ring, soft rubber sealing ring cross section is trapezoidal, and there is the flange of outside bending the lower end of soft rubber sealing ring.
3, by claim 1 or 2 described heavy cabinet sealing devices, it is characterized in that offering ring-shaped air chamber on the base end face between the two road soft rubber sealing rings, the cross section of ring-shaped air chamber is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920085588XU CN201411703Y (en) | 2009-05-05 | 2009-05-05 | Sealing device for buoy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920085588XU CN201411703Y (en) | 2009-05-05 | 2009-05-05 | Sealing device for buoy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201411703Y true CN201411703Y (en) | 2010-02-24 |
Family
ID=41713590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920085588XU Expired - Lifetime CN201411703Y (en) | 2009-05-05 | 2009-05-05 | Sealing device for buoy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201411703Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942840A (en) * | 2010-09-27 | 2011-01-12 | 中国葛洲坝集团机械船舶有限公司 | Self-propelled sink cabinet device |
| CN113529666A (en) * | 2021-06-29 | 2021-10-22 | 中国船舶科学研究中心 | Sealing device and sealing method for underwater irregular surface |
| CN115180101A (en) * | 2021-04-07 | 2022-10-14 | 浙江华东建设工程有限公司 | Underwater local dry land maintenance method and system |
-
2009
- 2009-05-05 CN CN200920085588XU patent/CN201411703Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942840A (en) * | 2010-09-27 | 2011-01-12 | 中国葛洲坝集团机械船舶有限公司 | Self-propelled sink cabinet device |
| CN115180101A (en) * | 2021-04-07 | 2022-10-14 | 浙江华东建设工程有限公司 | Underwater local dry land maintenance method and system |
| CN113529666A (en) * | 2021-06-29 | 2021-10-22 | 中国船舶科学研究中心 | Sealing device and sealing method for underwater irregular surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |
|
| CX01 | Expiry of patent term |