CN2222753Y - Water closing air shut-off device for sewer pipe - Google Patents
Water closing air shut-off device for sewer pipe Download PDFInfo
- Publication number
- CN2222753Y CN2222753Y CN 95220111 CN95220111U CN2222753Y CN 2222753 Y CN2222753 Y CN 2222753Y CN 95220111 CN95220111 CN 95220111 CN 95220111 U CN95220111 U CN 95220111U CN 2222753 Y CN2222753 Y CN 2222753Y
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- CN
- China
- Prior art keywords
- sewer pipe
- pipe
- valve
- stifled
- aqueous vapor
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- Expired - Fee Related
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Abstract
The utility model relates to a new water closing air blocking device for a drain pipeline, which is used for the construction, the town drain, the maintenance of a common drain pipeline, etc. The water closing air blocking device is characterized in that one end of an elongated rubber pipe (2) is integrally connected and communicated with one end of a sealing rubber air sac (1); the other end of the elongated rubber pipe (2) is sealed and connected with an air valve (3). The new air blocking device solves the problem that an existing air blocking device has difficult air inflating operation; accordingly, water can be closed in a more labor-saving and time-saving mode.
Description
The utility model relates to the apparatus of making closed-water test at aspects such as building operations, municipal drainage, public sewer pipe maintenances, and the sewer pipe that is specifically related to these purposes closes aqueous vapor and blocks up.
Past, build the instrument that does not have special use when closed-water test is done to sewer pipe by municipal unit in China, adopt the sewer pipe of the backward various diameters of shutoff measure shutoff such as cotton yarn, stopper, basketball courage and brick mortar always.Occurred recently a kind of be exclusively used in sewer pipe to close aqueous vapor stifled, this gas is stifled by a hollow seal air bag and be fixed on hermetically that the valve of air bag one end forms.Doing to guarantee to close water quality with its blocking pipe, and this gas to block up and can also use repeatedly under the situations such as closed-water test or repairing sewer pipe.But need often to insert in the pipe from inspection eye gas is stifled making closed-water test, the valve that is located at the stifled end of gas has also entered in the pipe band of gas difficulty of so just fighting each other.Especially when the repairing sewer pipe, the breakage of pipeline often is positioned under water, and the repairing personnel are after managing gas in the stifled pipeline of inserting under water, and valve is positioned under water, more is difficult to inflate.
In order to overcome the shortcoming of above-mentioned prior art, therefore, the purpose of this utility model is to propose a kind of special tool of shutoff sewer pipe, it not only has the stifled advantage of above-mentioned existing gas, and can accomplish after it inserts in the pipeline, be easy to inflate operation, thus more the saving of labor, save time.
To achieve these goals, according to concept design of the present utility model a kind of novel sewer pipe to close aqueous vapor stifled, it also comprises a hollow seal air bag and a valve, it is characterized in that: an end of an elongated rubber pipe integrally is connected with an end of hollow seal rubber pneumatic bag and is communicated with, and the other end of this elongated rubber pipe is connected with valve hermetically.The wall thickness of this elongated rubber pipe mainly makes rubber pneumatic bag bulge when inflating greater than the wall thickness of hollow seal rubber pneumatic bag thus.
The hollow seal rubber pneumatic bag can make different shape, as can be cydariform, tubular, sphere or Pear-Shaped, is preferably cydariform, and its external diameter can make various sizes, to adapt to the caliber of various sizes sewer pipe.
Because adopting the sewer pipe of said structure to close aqueous vapor blocks up, therefore when making closed-water test or repairing sewer pipe, the stifled back elongated rubber pipe of inserting in the pipeline of gas can be stayed outside the pipeline, and can make valve apart from the certain distance of pipeline, can inflate easily thus, and water is realized closing in saving of work and time ground.
For further feature of the present utility model and advantage are done further to understand, below preferred embodiment of the present utility model is elaborated by accompanying drawing.
Fig. 1 is that explanation sewer pipe of the present utility model closes the sectional drawing of a stifled preferred embodiment structure of aqueous vapor.
Referring to Fig. 1, in the preferred embodiment, it is stifled by a hollow seal rubber pneumatic bag 1 that this sewer pipe closes aqueous vapor, and with the whole elongated rubber pipe 2 that is connected of an end of this hollow seal rubber pneumatic bag 1, the other end of this elongated rubber pipe 2 is connected with a valve 3 hermetically.
Described rubber pneumatic bag 1 and elongated rubber pipe 2 can utilize one-shot forming technique to form integral product by natural rubber or artificial caoutchouc, and this one-shot forming technique is that the rubber field is known, repeats no more here.The wall thickness b2 of elongated rubber pipe 2 is usually greater than the wall thickness b1 of hollow seal rubber pneumatic bag 1.Like this, when squeezing into air, mainly make air bag 1 produce dilatancy, so that block internal diameter of the pipeline by valve 3.
Valve 3 can adopt the structure of bicycle valve, but its lower outer diameter is provided with terraced groove configuration 3a, is beneficial to be tightly connected closely with the end formation of elongated rubber pipe 2, in addition, be provided with a pipe clamp 4 in the outside of rubber tube 2 these ends, it makes valve 3 more reliable with being connected of rubber tube 2.The big model sewer pipe of using for big pipeline under water closes that aqueous vapor is stifled can to adopt high voltage bearing valve, as the doughnut valve.
Rubber pneumatic bag 1 can make different shape, as can be cydariform, tubular, sphere or Pear-Shaped, but is preferably cydariform, and its outer diameter D can make the internal diameter of various sizes with the sewer pipe that adapts to various sizes.Inflate intensity for adapting to various closing under the water environment, its air bag wall thickness b1 also can adopt different thickness according to circumstances.
As mentioned above, this novel sewer pipe closes that aqueous vapor is stifled is convenient to inflate operation, therefore not only be suitable for making the sewer pipe closed-water test at construction unit, municipal drainage unit's soil pipe is done and is made shutoff caliber usefulness in the closed-water test, cleaning building excrement well, repairing sewer pipe close water, close excrement, prevent sewage outflow, prevent one, two layers of sewer pipe sewage outflow of building, the desirable capping tools of back foul flavor but also can be used as.
Claims (4)
1, it is stifled that sewer pipe closes aqueous vapor, it comprises a hollow seal air bag and a valve, it is characterized in that: an end of an elongated rubber pipe (2) integrally is connected with an end of hollow seal rubber pneumatic bag (1) and is communicated with, and the other end of this elongated rubber pipe (2) is connected with valve (3) hermetically.
2, it is stifled that sewer pipe according to claim 1 closes aqueous vapor, and it is characterized in that: the wall thickness (b2) of described elongated rubber pipe (b2) is greater than the wall thickness (b1) of hollow seal rubber pneumatic bag (1).
3, it is stifled that sewer pipe according to claim 1 closes aqueous vapor, it is characterized in that: valve (3) can adopt the structure of bicycle or doughnut valve, but its lower outer diameter is provided with terraced groove configuration (3a), be used for being tightly connected closely, and be provided with a pipe clamp (4) in this link outside of rubber tube (2) with the end formation of elongated rubber pipe (2).
4, it is stifled that sewer pipe according to claim 1 closes aqueous vapor, it is characterized in that: described hollow seal rubber pneumatic bag (1) can be cydariform, tubular, sphere or Pear-Shaped, be preferably cydariform, and its external diameter (D) can make various sizes, to be adapted to the caliber of various sizes sewer pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220111 CN2222753Y (en) | 1995-08-22 | 1995-08-22 | Water closing air shut-off device for sewer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220111 CN2222753Y (en) | 1995-08-22 | 1995-08-22 | Water closing air shut-off device for sewer pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222753Y true CN2222753Y (en) | 1996-03-20 |
Family
ID=33868104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95220111 Expired - Fee Related CN2222753Y (en) | 1995-08-22 | 1995-08-22 | Water closing air shut-off device for sewer pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222753Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216001A (en) * | 2013-03-20 | 2013-07-24 | 朱玉生 | Trench-stylesquatting pan water-saving transformation process |
-
1995
- 1995-08-22 CN CN 95220111 patent/CN2222753Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216001A (en) * | 2013-03-20 | 2013-07-24 | 朱玉生 | Trench-stylesquatting pan water-saving transformation process |
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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 |