CN108071892A - It is a kind of for closure air bag of drainage pipeline and preparation method thereof - Google Patents
It is a kind of for closure air bag of drainage pipeline and preparation method thereof Download PDFInfo
- Publication number
- CN108071892A CN108071892A CN201711463474.XA CN201711463474A CN108071892A CN 108071892 A CN108071892 A CN 108071892A CN 201711463474 A CN201711463474 A CN 201711463474A CN 108071892 A CN108071892 A CN 108071892A
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- airbag fabric
- whole body
- air bag
- head end
- fabric
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- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000004744 fabric Substances 0.000 claims abstract description 146
- 238000003466 welding Methods 0.000 claims abstract description 29
- 238000005498 polishing Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000004873 anchoring Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- -1 which is cut out Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/13—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by plastic deformation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/02—Inflatable articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Barrages (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A kind of closure air bag for drainage pipeline, by whole body airbag fabric, head end airbag fabric and tail end airbag fabric composition, the head end airbag fabric and tail end airbag fabric are square airbag fabric, both ends form an inner cavity with head end airbag fabric and tail end airbag fabric split welding respectively after the inside turnup of whole body airbag fabric, the cavity ends are square, it is cylinder all over the body, the step of this air bag mainly includes is made to cut polishing whole body airbag fabric welding head end airbag fabric welding tail end airbag fabric welding installation inflation attachment, it is used by the closure air bag that this preparation method makes easy, plugging effect is good, construction cost can effectively be reduced.
Description
Technical field
The present invention relates to a kind of air bags more particularly to a kind of for closure air bag of drainage pipeline and preparation method thereof.
Background technology
Closure air bag be it is a kind of in drainage pipeline repair, test for the instrument of blocking pipe, operation principle is：Profit
Its expansion is made by inflation method with the pipeline plugging air bag that rubber is made, is wanted when the gas pressure in water blockoff air bag reaches regulation
When asking, water blockoff air bag fills up entire conduit section, and the frictional force generated using pipeline plugging air bag wall and pipeline blocks leak, from
And achieve the purpose that in target pipeline section without infiltration, traditional closure air bag is mostly cylinder, and two end sections are gradually reduced, during water blockoff
It is not easy to form stopper cap structure, in addition its shaping is mainly using bonding process, and interface cohesive force is limited, and plugging effect is bad, extends
Construction time improves construction cost.
The content of the invention
It is a kind of for closure air bag of drainage pipeline and preparation method thereof, this closure air bag present invention aims at providing
Using simplicity, plugging effect is good, can effectively reduce construction cost and reduce the construction time.
The present invention is achieved by the following technical solutions：
A kind of closure air bag for drainage pipeline is made of, institute whole body airbag fabric, head end airbag fabric and tail end airbag fabric
It is square airbag fabric to state head end airbag fabric and tail end airbag fabric, after the inside turnup of the whole body airbag fabric both ends respectively with head end air bag
Cloth and tail end airbag fabric split welding form an inner cavity, and the cavity ends are square, and the whole body is cylinder.
Being cut out in a preferred embodiment, in the middle part of the head end airbag fabric has air nozzle hole, equipped with inflation on the air nozzle hole
Gas nozzle.
In a preferred embodiment, pressure gauge and valve are housed on the inflating nozzle.
In a preferred embodiment, the air bag is equipped with stretch ring.
In a preferred embodiment, the stretch ring is fixed on by anchoring sheet on air bag.
In a preferred embodiment, the stretch ring is arranged on the arbitrarily two opposite sides of air bag, and 2 are equipped with per side.
In a preferred embodiment, the airbag fabric is made of natural rubber material.
A kind of making side for drainage pipeline closure air bag comprises the following steps：
First, cut
Airbag fabric uses rubberized fabric, and the rubberized fabric thickness is 2-4mm；Rubberized fabric is cut into five parts：Whole body gas
Capsule cloth, head end airbag fabric, tail end airbag fabric, stretch ring and anchoring sheet；The whole body airbag fabric is cut to rectangle, radical length
For 1-2m, circumferential length is 1.3-5.1m, and the head end airbag fabric and tail end airbag fabric are cut to the square of same size, side
Long and circumferential length is with 1:5 ratio-dependent, the head end airbag fabric middle part cut air nozzle hole, and stretch ring is using double-deck enhancing rubber
Adhesive plaster, width 100mm, anchoring sheet are cut to the square of length of side 200-300mm, and centre cuts out the gap of 110mm；
2nd, polish
Polished with emery wheel each several part, the whole body airbag fabric take a longitudinal edge only polish outside one side, Ling Yijing
To while and two it is circumferential while inside and outside two sides polish, the head end airbag fabric and four side two sides of tail end airbag fabric are beaten
Mill, the whole body airbag fabric are polished with stretch ring bonding position and the entire inner face of anchoring sheet and stretch ring both ends of the surface；
3rd, whole body airbag fabric welding
Raw rubber is circumferentially pasted in the longitudinal edge of single side polishing, by the longitudinal edge inner face of two-sided polishing and only polishing outside
Longitudinal edge paste and paste raw rubber outside the longitudinal edge of two-sided polishing, heat hot melting equipment, the longitudinal edge that will splice
Hot melting equipment is put into, applies certain pressure extrusion bonding edge, keeps 100-150 DEG C of hot melting equipment, pressure constant until the whole body
Airbag fabric welding is solid, forms the cylindrical airbag whole body；
4th, head end airbag fabric welding
The opposite both sides of the head end airbag fabric and whole body airbag fabric are subjected to welding according to method shown in step 3, then
Four angles that the whole body airbag fabric splices with head end airbag fabric are suitably cut, it then will according to method shown in step 3
The other both sides of head end airbag fabric and whole body airbag fabric welding, form the square balloon side of head end；
5th, tail end airbag fabric welding
According to method shown in step 4 by tail end airbag fabric and whole body airbag fabric welding, the square balloon side of tail end is formed；
6th, stretch ring is bonded
It applies glue to drawing central port two sides, anchoring sheet inner face, whole body airbag fabric polishing position, stretch ring is passed through into anchor
It is bonding that Gu piece and the air bag whole body carry out pressurization.
7th, installation inflation attachment
Inflating nozzle, pressure gauge and valve etc. are installed on the head end airbag fabric.
Beneficial effects of the present invention：
1) the closure air bag of drainage pipeline of the invention, is made of whole body airbag fabric, head end airbag fabric and tail end airbag fabric,
Head end airbag fabric and tail end airbag fabric are square airbag fabric, both ends and head end airbag fabric and tail after the inside turnup of whole body airbag fabric
End airbag fabric split welding forms one end and is square, and the rounded inner cavity in the whole body easily forms plug between airbag wall and pipeline
Cap structure is not susceptible to skid, and promotes plugging effect, reduces construction cost.
2) the closure air bag of drainage pipeline of the invention, head end airbag fabric middle part, which is cut out, air nozzle hole, is filled on the air nozzle hole
There is inflating nozzle, pressure gauge and valve are housed on inflating nozzle, convenient for detecting and monitoring the sealing situation of air bag, keeping air bag just
Often work.
3) the closure air bag of drainage pipeline of the invention is equipped with stretch ring, stretch ring by anchoring sheet cross on air bag
And the arbitrarily two opposite sides of air bag are arranged on, so that when using and recycle air bag air bag can be moved by stretch ring.
3) the closure air bag of drainage pipeline of the invention is made of natural rubber material, has good resilience, insulation
Property, water-resisting property and plasticity, and also there are the spies such as oil resistant, acidproof, heat-resisting, cold-resistant, pressure-resistant, wear-resisting after proper treatment
Property.
Description of the drawings
Fig. 1 blocks air bag schematic diagram for existing drainage pipeline；
The drainage pipeline that Fig. 2 is the present invention blocks air bag schematic diagram；
Fig. 3 is the anchoring sheet schematic diagram of the present invention.
Wherein, 1 closure air bag, 10 whole body airbag fabrics, 11 head end airbag fabrics, 12 tail end airbag fabrics, 20 inflating nozzles, 21
Pressure gauge, 22 valves, 30 stretch rings, 40 anchoring sheets.
Specific embodiment
In order to make technical solution of the present invention clearer, now the present invention is done further specifically with attached drawing in conjunction with the embodiments
It is bright：
As shown in Figure 1, existing drainage pipeline closure air bag is cylinder, easily occur to beat between airbag wall and pipeline
Sliding, plugging effect is bad, easily extends the construction time, improves construction cost；As Figure 2-3, the present invention provides a kind of use
In the closure air bag of drainage pipeline, it is made of whole body airbag fabric 10, head end airbag fabric 11 and tail end airbag fabric 12, head end air bag
Cloth 11 and tail end airbag fabric 12 are square airbag fabric, after 10 inside turnup of the whole body airbag fabric both ends respectively with head end airbag fabric 11
End is formed with the 12 split welding of tail end airbag fabric to be square, the rounded inner cavity in the whole body, easy shape between airbag wall and pipeline
It into stopper cap structure, is not susceptible to skid, promotes plugging effect, reduce construction cost；11 middle part of head end airbag fabric, which is cut out, air nozzle hole,
Inflating nozzle 20 on air nozzle hole is housed, pressure gauge 21 and valve 22 on inflating nozzle 20 are housed, stretch ring is additionally provided on air bag 1
30, it is fixed on by anchoring sheet 40 on 1 two opposite sides of air bag, 2 is equipped with per side；Air bag 1 is made of rubber material, has
Good resilience, insulating properties, water-resisting property and plasticity, and also there is oil resistant, acidproof, heat-resisting, resistance to after proper treatment
The characteristics such as cold, pressure-resistant, wear-resisting.
The invention also provides a kind of making sides for drainage pipeline closure air bag, comprise the following steps：
First, cut
Air bag 1 uses rubberized fabric, and the rubberized fabric thickness is 2-4mm, can increase one or more layers cord fabric according to demand；
Rubberized fabric is cut into five parts：Whole body airbag fabric 10, head end airbag fabric 11, tail end airbag fabric 12, stretch ring 30 and anchoring
Piece 40；The whole body airbag fabric 10 is cut to rectangle, radical length 1-2m, and circumferential length is 1.5-5.1m, the head end
Airbag fabric 11 and tail end airbag fabric 12 are cut to the square of same size, and the length of side is with circumferential length with 1:5 ratio-dependent, institute
It states 11 middle part of head end airbag fabric and cuts air nozzle hole, stretch ring 30 is using double-deck enhancing rubberized fabric, width 100mm, anchoring sheet
40 are cut to the square of length of side 200-300mm, and centre cuts out the gap of 110mm；
2nd, polish
It is polished with emery wheel each several part, the whole body airbag fabric 10 takes a longitudinal edge only to polish outside one side, another
Longitudinal edge and the two inside and outside two sides in circumferential side are polished, and the head end airbag fabric 11 and 12 4 side two sides of tail end airbag fabric are equal
It polishes, the whole body airbag fabric 10 and 30 bonding position of stretch ring and 40 entire inner face of anchoring sheet and 30 both ends of stretch ring
It polishes in face；
3rd, whole body airbag fabric welding
Raw rubber is circumferentially pasted in the longitudinal edge of single side polishing, by the longitudinal edge inner face of two-sided polishing and only polishing outside
Longitudinal edge paste and paste raw rubber outside the longitudinal edge of two-sided polishing, heat hot melting equipment, the longitudinal edge that will splice
Hot melting equipment is put into, applies certain pressure extrusion bonding edge, keeps 100-150 DEG C of hot melting equipment, pressure constant until the whole body
10 welding of airbag fabric is solid, forms the cylindrical airbag whole body；
4th, head end airbag fabric welding
The opposite both sides of the head end airbag fabric 11 and whole body airbag fabric 10 are subjected to welding according to method shown in step 3,
Then four angles spliced to the whole body airbag fabric 10 with head end airbag fabric 11 are suitably cut, then according to step 3 institute
Show method by the 11 other both sides of head end airbag fabric and 10 welding of whole body airbag fabric, the formation square balloon side of head end；
5th, tail end airbag fabric welding
According to method shown in step 4 by tail end airbag fabric 12 and 10 welding of whole body airbag fabric, the square air bag of tail end is formed
End；
6th, stretch ring is bonded
It applies glue to 30 port two sides of stretch ring, 40 inner face of anchoring sheet, the polishing of whole body airbag fabric 10 position, by stretch ring
30 through anchoring sheet 40 with 1 whole body of air bag to carry out pressurization bonding.
7th, installation inflation attachment
Inflating nozzle 20, pressure gauge 21 and valve 22 etc. are installed on the head end airbag fabric 11.
Strength test is carried out after completing：Air bag 1 is inflated to 1.5 times of design pressure with air compressor machine, and maintains 30 points
Clock, air bag 1 does not destroy, air tight interface is then qualification；Performing leak test：Air bag 1 is inflated to design pressure with air compressor machine
1.15 times, and maintain 12 it is small when, without apparent pressure decline, interface it is air tight then for qualification.
The foregoing is only a preferred embodiment of the present invention, therefore cannot limit the scope that the present invention is implemented according to this, i.e.,
According to the equivalent changes and modifications that the scope of the claims of the present invention and description are made, all should still belong in the range of the present invention covers.
Claims (8)
1. a kind of closure air bag for drainage pipeline is made of whole body airbag fabric, head end airbag fabric and tail end airbag fabric, special
Sign is：The head end airbag fabric and tail end airbag fabric are square airbag fabric, and both ends are distinguished after the inside turnup of whole body airbag fabric
An inner cavity is formed with head end airbag fabric and tail end airbag fabric split welding, the cavity ends are square, and the whole body is cylinder.
2. a kind of closure air bag for drainage pipeline as described in claim 1, it is characterised in that：In the head end airbag fabric
Portion, which is cut out, air nozzle hole, and inflating nozzle is housed on the air nozzle hole.
3. a kind of closure air bag for drainage pipeline as claimed in claim 2, it is characterised in that：It is filled on the inflating nozzle
There are pressure gauge and valve.
4. a kind of closure air bag for drainage pipeline as described in claim 1, it is characterised in that：The air bag is equipped with and leads
Draw ring.
5. a kind of closure air bag for drainage pipeline as described in claim 1, it is characterised in that：The stretch ring passes through anchor
Gu piece is fixed on air bag.
6. a kind of closure air bag for drainage pipeline as described in claim 1, it is characterised in that：The stretch ring is arranged on
The arbitrarily two opposite sides of air bag are equipped with 2 per side.
7. a kind of closure air bag for drainage pipeline as described in claim 1, it is characterised in that：The airbag fabric is by natural
Rubber material is made.
8. a kind of making side for drainage pipeline closure air bag, which is characterized in that comprise the following steps：
First, cut
Airbag fabric uses rubberized fabric, and the rubberized fabric thickness is 2-4mm；Rubberized fabric is cut into five parts：Whole body airbag fabric,
Head end airbag fabric, tail end airbag fabric, stretch ring and anchoring sheet；The whole body airbag fabric is cut to rectangle, radical length 1-
2m, circumferential length are 1.3-5.1m, and the head end airbag fabric and tail end airbag fabric are cut to the square of same size, the length of side with
Circumferential length is with 1:5 ratio-dependent, the head end airbag fabric middle part cut air nozzle hole, and stretch ring is using double-deck enhancing rubber
Cloth, width 100mm, anchoring sheet are cut to the square of length of side 200-300mm, and centre cuts out the gap of 110mm；
2nd, polish
Polished with emery wheel each several part, the whole body airbag fabric take a longitudinal edge only polish outside one side, another longitudinal edge
It polishes with the two inside and outside two sides in circumferential side, the head end airbag fabric and four side two sides of tail end airbag fabric are polished, institute
Whole body airbag fabric is stated to polish with stretch ring bonding position and the entire inner face of anchoring sheet and stretch ring both ends of the surface；
3rd, whole body airbag fabric welding
Raw rubber is circumferentially pasted in the longitudinal edge of single side polishing, by the longitudinal edge inner face of two-sided polishing and the footpath of only polishing outside
It is pasted to side and raw rubber is pasted outside the longitudinal edge of two-sided polishing, heated hot melting equipment, the longitudinal edge spliced is put into
Hot melting equipment applies certain pressure extrusion bonding edge, keeps 100-150 DEG C of hot melting equipment, pressure constant until whole body air bag
Cloth welding is solid, forms the cylindrical airbag whole body；
4th, head end airbag fabric welding
The opposite both sides of the head end airbag fabric and whole body airbag fabric are subjected to welding according to method shown in step 3, then to institute
It states four angles that whole body airbag fabric splices with head end airbag fabric suitably to be cut, then according to method shown in step 3 by described in
The other both sides of head end airbag fabric and whole body airbag fabric welding, form the square balloon side of head end；
5th, tail end airbag fabric welding
According to method shown in step 4 by tail end airbag fabric and whole body airbag fabric welding, the square balloon side of tail end is formed；
6th, stretch ring is bonded
It applies glue to drawing central port two sides, anchoring sheet inner face, whole body airbag fabric polishing position, stretch ring is passed through into anchoring sheet
It is bonding that pressurization is carried out with the air bag whole body.
7th, installation inflation attachment
Inflating nozzle, pressure gauge and valve etc. are installed on the head end airbag fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463474.XA CN108071892B (en) | 2017-12-28 | 2017-12-28 | Plugging air bag for drainage pipeline and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463474.XA CN108071892B (en) | 2017-12-28 | 2017-12-28 | Plugging air bag for drainage pipeline and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108071892A true CN108071892A (en) | 2018-05-25 |
| CN108071892B CN108071892B (en) | 2023-09-19 |
Family
ID=62155920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711463474.XA Active CN108071892B (en) | 2017-12-28 | 2017-12-28 | Plugging air bag for drainage pipeline and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071892B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906098A (en) * | 2019-11-22 | 2020-03-24 | 深圳市共赢新材科技有限公司 | PVC plugging air bag and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471893U (en) * | 1990-10-30 | 1992-06-25 | ||
| CN1544840A (en) * | 2003-11-17 | 2004-11-10 | 锦州市金峰轮胎集团有限公司 | Water blocking aerated rubber air bag |
| CN2711504Y (en) * | 2004-07-08 | 2005-07-20 | 朱涓宝 | Air bag for pipeline |
| CN203231021U (en) * | 2013-05-13 | 2013-10-09 | 刁金强 | Pipeline blocking airbag |
| CN204005017U (en) * | 2014-07-26 | 2014-12-10 | 济南城建集团有限公司 | Close water, Air－tight Test method shutoff air bag used and test air bag |
| CN204611217U (en) * | 2015-04-28 | 2015-09-02 | 玉环汇通建设有限公司 | Sewerage shutoff air bag |
| CN205261130U (en) * | 2016-01-08 | 2016-05-25 | 田雨 | Pipeline blocking airbag |
| CN208107431U (en) * | 2017-12-28 | 2018-11-16 | 厦门安越非开挖工程技术股份有限公司 | A kind of closure air bag for drainage pipeline |
-
2017
- 2017-12-28 CN CN201711463474.XA patent/CN108071892B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471893U (en) * | 1990-10-30 | 1992-06-25 | ||
| CN1544840A (en) * | 2003-11-17 | 2004-11-10 | 锦州市金峰轮胎集团有限公司 | Water blocking aerated rubber air bag |
| CN2711504Y (en) * | 2004-07-08 | 2005-07-20 | 朱涓宝 | Air bag for pipeline |
| CN203231021U (en) * | 2013-05-13 | 2013-10-09 | 刁金强 | Pipeline blocking airbag |
| CN204005017U (en) * | 2014-07-26 | 2014-12-10 | 济南城建集团有限公司 | Close water, Air－tight Test method shutoff air bag used and test air bag |
| CN204611217U (en) * | 2015-04-28 | 2015-09-02 | 玉环汇通建设有限公司 | Sewerage shutoff air bag |
| CN205261130U (en) * | 2016-01-08 | 2016-05-25 | 田雨 | Pipeline blocking airbag |
| CN208107431U (en) * | 2017-12-28 | 2018-11-16 | 厦门安越非开挖工程技术股份有限公司 | A kind of closure air bag for drainage pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906098A (en) * | 2019-11-22 | 2020-03-24 | 深圳市共赢新材科技有限公司 | PVC plugging air bag and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108071892B (en) | 2023-09-19 |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361000 1st floor, building 4, No.89 Tangan West Road, Dongfu Town, Haicang District, Xiamen City, Fujian Province Patentee after: Anyue Environmental Technology Co.,Ltd. Address before: 361000 1st floor, building 4, No.89 Tangan West Road, Dongfu Town, Haicang District, Xiamen City, Fujian Province Patentee before: XIAMEN ANYUE TRENCHLESS ENGINEERING TECHNOLOGY CO.,LTD. |