CN204493980U - Pipeline plugging air bag - Google Patents
Pipeline plugging air bag Download PDFInfo
- Publication number
- CN204493980U CN204493980U CN201520174937.0U CN201520174937U CN204493980U CN 204493980 U CN204493980 U CN 204493980U CN 201520174937 U CN201520174937 U CN 201520174937U CN 204493980 U CN204493980 U CN 204493980U
- Authority
- CN
- China
- Prior art keywords
- airbag body
- air bag
- intermediate portion
- pipeline
- plugging
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses pipeline plugging air bag, airbag body inside forms an airtight cavity; In the front end of airbag body, be provided with suction port, outside gas enters in airtight cavity by suction port under pressure; In the front end of airbag body, be provided with plural draw ring, draw ring is symmetricly set on the front end of airbag body.Its material of airbag body is not identical, and the elasticity of the material of intermediate portion is greater than the elasticity of front end and back end material, and elongation time expansion in intermediate portion is greater than the elongation of front end and back end.Pipeline plugging air bag of the present utility model, after inflation, the external diameter of intermediate portion is greater than front end and back end, and laminating that is rear in intermediate portion inflation and inner-walls of duct is very tight, and can not form slot leakage fluid, plugging effect is more excellent; The length that whole air bag enters inner cavity of pipe from pipeline opening is controlled, intermediate portion just can shutoff in pipeline opening, facilitate plugging operations; The shutoff needs of multiple internal diameter pipeline can be adapted to, expand the Applicable scope of air bag.
Description
Technical field
The utility model relates to the device of the stored-gas (liquid) of inflatable body (liquid) blocking pipe in a kind of employing, particularly relates to a kind of pipeline plugging air bag.
Background technique
In urban road construction, and the field of industrial production such as chemical industry, medicine, all need various material is different, caliber size differs pipeline to carry different media, meet the needs of various conveying.As storm sewer, sewage conduct etc. that urban construction needs, and the field of industrial production such as chemical industry, medicine needs the various chemical mediator pipelines of conveying.But, in the installation of pipeline, construction, dredging, maintenance and correlated performance test, all need to retain the medium in pipeline in working surface upstream, to realize the precondition of downstream working surface constructing operation necessary anhydrous (fluid) operation.In prior art, except routine throttle down, adopt plug to carry out except shutoff, also have and adopt air bag to carry out blocking; But, existing air bag, laminating that is rear and inner-walls of duct of expanding in the deflated condition is not very tight, and also there is gap, the fluid in pipeline reserves by those gaps; And after air bag expands in the deflated condition, before and after it, diameter is consistent substantially, and the material of whole air bag is identical, synchronously expands during inflation, and intermediate portion and front end and back end size upon inflation (external diameter) are substantially identical, are unfavorable for plugging construction.Further, a kind of air bag of specification, its external diameter is constant substantially after inflation, therefore can only adapt to a kind of shutoff needs of pipeline of specification, limits its Applicable scope.
Model utility content
The utility model is not very tight with the laminating of inner-walls of duct for the air bag of prior art after inflation, also there is gap leakage fluid, and intermediate portion substantially identical with front end and back end external diameter upon inflation, be unfavorable for the deficiencies such as plugging construction, its object is to provide that a kind of plugging effect is more excellent, convenient construction operation pipeline plugging air bag.
In order to solve the problems of the technologies described above, the utility model have employed following technological scheme: a kind of pipeline plugging air bag, comprises airbag body, and airbag body inside forms an airtight cavity; It is characterized in that, in the front end of airbag body, be provided with suction port, outside gas enters in airtight cavity by suction port under pressure; In the front end of airbag body, be provided with plural draw ring, draw ring is symmetricly set on the front end of airbag body.
Further feature is, its material of airbag body is not identical, and the elasticity of the material of intermediate portion is greater than the elasticity of front end and back end material, and elongation time expansion in intermediate portion is greater than the elongation of front end and back end.
Pipeline plugging air bag of the present utility model has the following advantages:
1, pipeline plugging air bag of the present utility model, the expansivity of position, intermediate portion is greater than the expansivity of front end and back end, after inflation, the external diameter of intermediate portion is greater than front end and back end, laminating that is rear in intermediate portion inflation and inner-walls of duct is very tight, and can not form gap leakage fluid, plugging effect is more excellent.
2, due to after inflation, the external diameter of intermediate portion is greater than front end and back end, and the length that whole air bag enters inner cavity of pipe from pipeline opening is controlled, intermediate portion just can shutoff in pipeline opening, facilitate plugging operations.
3, the external diameter of intermediate portion is greater than front end and back end, and when being filled with different amount of gas, the external diameter respective change of intermediate portion, the pipeline of the certain internal diameter excursion of energy shutoff, adapts to the shutoff needs of multiple internal diameter pipeline, expand the Applicable scope of air bag.
Accompanying drawing explanation
Fig. 1 is the plan view after the utility model pipeline plugging air bag inflation.
In figure, 1-airbag body, 2-suction port, 3-draw ring, 4-intermediate portion.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of pipeline plugging air bag shown in Figure 1, comprise airbag body 1, the material that the PVC＝polyvinyl chloride (PVC) that described airbag body 1 adopts intensity higher, polyurethane (TPV), polyethylene (PE) etc. are suitable makes, airbag body 1 inside forms an airtight cavity, expand after inflation, form the air bag of cylindrical a, elliptical cylinder-shape; In the front end of airbag body 1, be provided with suction port 2, outside gas enters in airtight cavity by suction port 2 under pressure; In the front end of airbag body 1, be provided with plural draw ring 3, what draw ring 3 was conventional is 2,3,4, is symmetricly set on the front end of airbag body 1, is convenient to import stay cord into fixing or traction airbag body 1.The sealings of suction port 2 etc. adopt prior art, as the charging air inlet etc. of vehicle tyre, bicycle tyre, do not describe in detail.
Airbag body 1 of the present utility model, its material is not identical, and the elasticity of the material of intermediate portion 4 is greater than the elasticity of front end and back end material, and elongation time expansion in intermediate portion 4 is greater than the elongation of front end and back end; After fully inflating, the external diameter of intermediate portion 4 is greater than the external diameter of front end and back end, forms the Cylindrical object of intermediate portion evagination.During making, the material of intermediate portion 4 and the material of front end and back end are made into one, form an integral structure firmly connected.
When shutoff, according to the internal diameter treating blocking pipe, be filled with different amount of gas, the pipeline of the certain internal diameter excursion of energy shutoff, while increasing sealing effect, can also adapt to the shutoff needs of multiple internal diameter pipeline, expand the Applicable scope of air bag.
Finally it should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model but not restriction technologies scheme, although claimant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. a pipeline plugging air bag, comprises airbag body (1), and airbag body (1) inside forms an airtight cavity; It is characterized in that, in the front end of airbag body (1), be provided with suction port (2), outside gas enters in airtight cavity by suction port (2) under pressure; In the front end of airbag body (1), be provided with plural draw ring (3), draw ring (3) is symmetricly set on the front end of airbag body (1).
2. pipeline plugging air bag according to claim 1, it is characterized in that, the material of airbag body (1) is not identical, and the elasticity of the material of intermediate portion (4) is greater than the elasticity of front end and back end material, and elongation when intermediate portion (4) expand is greater than the elongation of front end and back end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174937.0U CN204493980U (en) | 2015-03-26 | 2015-03-26 | Pipeline plugging air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174937.0U CN204493980U (en) | 2015-03-26 | 2015-03-26 | Pipeline plugging air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493980U true CN204493980U (en) | 2015-07-22 |
Family
ID=53573297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520174937.0U Expired - Fee Related CN204493980U (en) | 2015-03-26 | 2015-03-26 | Pipeline plugging air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704762A (en) * | 2016-12-26 | 2017-05-24 | 中国石油天然气集团公司 | Pipe blocking device and method for blocking underground pipe inspection opening |
-
2015
- 2015-03-26 CN CN201520174937.0U patent/CN204493980U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704762A (en) * | 2016-12-26 | 2017-05-24 | 中国石油天然气集团公司 | Pipe blocking device and method for blocking underground pipe inspection opening |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203718273U (en) | Pipeline plugging airbag | |
| NZ599465A (en) | Methods and installations for manufacturing biaxially oriented tubing and the tubing itself | |
| CN104847908A (en) | Seal butterfly valve with internal channel inflated with air | |
| BR112016022198A2 (en) | DEVICE FOR INFLATION AND SEALING AN INFLATABLE OBJECT, METHOD OF INFLATION AND SEALING OF INFLATABLE OBJECTS, DEVICE FOR INFLATION AND SEALING A PNEUMATIC TIRE, METHOD OF INFLATION AND SEALING OF A PNEUMATIC TIRE, INFAILABLE DEVICE FOR INFLATION AND SEALING OF A PNEUMATIC TIRE, DEVICE OF RELEASE OF SEALING AGENT TO A PNEUMATIC TIRE, AND METHOD FOR INJECTION OF SEALANT TO PNEUMATIC TIRES HAVING SOME DEGREE OF PRESSURE PRESENT IN SAID TIRES | |
| CN204493980U (en) | Pipeline plugging air bag | |
| CN204005018U (en) | Steel tube pressure-measuring seal arrangement | |
| CN204127564U (en) | Tire tube air-inflating formula plugging apparatus for pipe end | |
| CN205298943U (en) | Shutoff pig | |
| CN204403669U (en) | A kind of pipeline plugging air bag | |
| CN204167851U (en) | Cable inflatable pipeline sealing device | |
| CN109505978A (en) | A kind of compensation interior swollen plugging mechanism of radial compliance | |
| CN212868970U (en) | Multifunctional reducing repair air bag for drainage pipeline | |
| CN204001104U (en) | A kind of pipe-dredging sealer | |
| CN204493746U (en) | Internal channel gas-flow closure butterfly valve | |
| CN102794282A (en) | Isobaric inflatable seal joint device for cleaning internal wall of tube | |
| CN205261130U (en) | Pipeline blocking airbag | |
| CN104332933A (en) | Inflatable cable pipeline sealing device and cable pipeline sealing method | |
| WO2012016244A3 (en) | Apparatus and method for heat curing of pipe liners | |
| CN204986038U (en) | Inflatable cable channel sealing device that can repeatedly use repeatedly | |
| CN214947329U (en) | Plugging air bag for municipal pipeline | |
| CN204919767U (en) | Plugging device for sewer line | |
| CN204901198U (en) | Guiding device is salvageed to accident pipeline | |
| CN211010404U (en) | Pneumatic plugging device for pipeline | |
| CN204314282U (en) | Detect the experimental provision of gas discharge drilling sealing material sealing property | |
| CN204267972U (en) | One can discharge water the airtight water blocking of drainage pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400039 Chongqing Jiulongpo District No. 222 stone path 2 Unit No. 11-7 Patentee after: CHONGQING JUNZHENG ADVANCED COMPOSITE MATERIAL Co.,Ltd. Address before: 400039 Chongqing Jiulongpo District No. 222 stone path 2 Unit No. 11-7 Patentee before: Chongqing Junzheng Rubber Products Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |