CN107761672A - A kind of gas shield dam air bag and its processing technology - Google Patents
A kind of gas shield dam air bag and its processing technology Download PDFInfo
- Publication number
- CN107761672A CN107761672A CN201711136334.1A CN201711136334A CN107761672A CN 107761672 A CN107761672 A CN 107761672A CN 201711136334 A CN201711136334 A CN 201711136334A CN 107761672 A CN107761672 A CN 107761672A
- Authority
- CN
- China
- Prior art keywords
- air bag
- gas shield
- airbag body
- shield dam
- anchoring
- 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.)
- Granted
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims abstract description 73
- 238000004073 vulcanization Methods 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 241000459479 Capsula Species 0.000 claims description 47
- 230000002787 reinforcement Effects 0.000 claims description 20
- 210000001503 joint Anatomy 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 238000011900 installation process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 238000002788 crimping Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003292 diminished effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
- Air Bags (AREA)
Abstract
A kind of gas shield dam air bag and its processing technology.It is related to dash apparatus field, more particularly to a kind of gas shield dam air bag and its processing technology.Air bag overall structure, the gas shield dam air bag and its processing technology of air bag service life length will not be destroyed by providing in a kind of installation process.Gas shield dam air bag, including airbag body, airbag body is interior to be provided with least two layers of casing ply, and strip anchoring position is provided with a side of airbag body, and anchoring position is integrated with air bag vulcanization, uniform some anchor holes on position is anchored.It is high the invention enables air bag bulk strength, it is hardly damaged, service life length.Anchoring the local reinforcing layers set in the short transverse at position can use warp-weft same-nature canvas to make, good with the affinity of rubber.
Description
Technical field
The present invention relates to dash apparatus field, more particularly to a kind of gas shield dam air bag and its processing technology.
Background technology
Part for rubber dam and gas shield dam are the conventional dam types in current movable checkdam field.
The gentle shield dam air bag of rubber dam bag is all to do stress frame, inside and outside coating rubber using high strength synthetic fibre fabric
Make protective layer, be processed into air bag.Adhesive plaster or utricule are anchored on bottom plate into closed again, by filling row pipeline water（Gas）Will
It is inflated to certain altitude, for dash.Air bag anchoring process is at present：The side of composite fiber fabric is crimped by vulcanizing
After forming entirety, secured the air-bag at crimping by bolt on the bottom plate on gas shield dam.So when using gas shield dam, air bag
Crimping at not only need to bear the pressure from inside air bag gas, the pressure of the fluid from current is still suffered from, when long
Between use when at crimping easily cracking and the overall structure that bolt hole destroys air bag is directly beaten at crimping, have impact on air bag
Bulk strength.
An application for a patent for invention disclosed in State Intellectual Property Office 2015.12.23（Publication number：The A of CN 105178247,
Title：A kind of checkdam dam bag, air bag and its production method）Disclose, including dam bag bag body, the inside of dam bag bag body are provided with
Multilayer casing play, every layer of casing play by it is multiple separately and oblique arrangement cord fabric thread form, the cord fabric thread of adjacent casing play
Incline direction is symmetrical, and dam bag bag body is combined as a whole with casing play by sulfuration process, and the both sides of dam bag bag body are equipped with side
Glue, the enhancement layer for being used for that the two to be combined as a whole being provided between dam bag bag body and side glue, the top of casing play is provided with upper glue surface,
Lower section is provided with primer face, and dam bag bag body is provided with through the hole of bag body.Checkdam dam bag, air bag, because its own is carried
Hole, just do not have to punch when in use, will not destroy the casing play of inside yet, add the strong of bag body or utricule
Degree, improves the intensity of bag body or utricule at anchoring, there is provided the safety coefficient of checkdam system when in use, reduces safety
Hidden danger, while preparation method is simple, suitable for large-scale production.But it is still to be punched on airbag body, when in use still
Vulcanization part can so be had an impact so that the easy cracking in vulcanization part, influence service life.
The content of the invention
The present invention is directed to problem above, there is provided air bag overall structure will not be destroyed in a kind of installation process, air bag uses
The gas shield dam air bag and its processing technology of long lifespan.
The technical scheme is that：A kind of gas shield dam air bag, including airbag body, the airbag body is interior to be provided with least
Two layers of casing ply, strip anchoring position is provided with a side of the airbag body, and the anchoring position vulcanizes with the air bag
It is integrated, uniform some anchor holes on the anchoring position.
At the anchoring position with being respectively arranged with sub-surface reinforcement on the top surface of the airbag body and bottom surface.
At least one layer of local reinforcing layers are provided with the short transverse at the anchoring position.
Contiguous block, the side of the contiguous block and the air bag sheet are set between the anchoring position and the airbag body
Show consideration for and close, the opposite side of the contiguous block is bonded with the anchoring position.
The side at the anchoring position is bonded with the airbag body.
Process as follows：
1）The capsula interna shaping of airbag body, obtains capsula interna base；
2）At least two layers of casing ply is wrapped up on the capsula interna base, obtains air bag base；
3）In the top surface of the air bag base and bottom surface difference coating surface enhancement layer, anchoring position connection side is stayed；
4）The termination of the sub-surface reinforcement of top surface is routed up, is bonded local reinforcing layers piecewise, until reaching height, forms anchoring section
Position, anchors the butt joint edge at position and is fully bonded with the butt joint edge of capsula interna；
5）Turn back the termination of the sub-surface reinforcement of top surface, overall vulcanization so that top surface enhancement layer, capsula interna, anchoring position and connection
Vulcanize simultaneously between block, it is ensured that vulcanization is abundant；
6）Gas shield dam air bag is made, finishes.
The step 5）Airbag body is inflated during middle overall vulcanization.
The step 2）The adjacent carcass plies of middle casing ply are orthogonal in 90 °.
The step 4）Middle anchoring position is prefabricated into an entirety by the local reinforcing layers vulcanization being bonded piecewise.
It is fixed on during present invention installation by pacifying the anchor hole air bag on anchoring position on the sole plate on gas shield dam,
Need not the perforate on air bag utricule working face, do not influence air bag overall structure, airbag body only needs to bear water when in use
Flow pressure caused by height, it is not necessary to additionally bear the pressure of pressure bladder institute product again, anchoring pressing plate is not bearing to seal
Caused expansive force, while airbag body integrally bears pressure and diminished so that airbag body not easy damaged when in use, use
Long lifespan, and due to need not the perforate directly on airbag body, do not destroy the overall structure of airbag body so that air bag is overall
Intensity is high, is hardly damaged, service life length.
Sub-surface reinforcement strengthens utricule with anchoring the bonding strength at position so that anchoring position is connected with the airbag body
Intensity is higher, and compression strength is bigger, and the pressure that junction can be born is bigger, ensures that junction can connect jail under hydraulic pressure
Gu improve the service life of air bag.And due to being provided with sub-surface reinforcement, current directly do not produce pressure to connecting portion, and
It is that pressure is produced to sub-surface reinforcement so that bearing area is bigger, and pressure is born in unit area and is diminished, so that overall
Compression strength rises, it is ensured that junction can be connected firmly under hydraulic pressure, improve the service life of air bag.
Anchor and be provided with least one layer of local reinforcing layers in the short transverse at position, be formed by stacking by multilayer local reinforcing layers
Anchoring position improve the overall intensity in anchoring position, overcome rubber to produce permanent deformation when being compressed by anchoring piece, reinforcement
Position bulk strength is anchored, anti-horizontal shear force is strong.So that anchoring position rigidity is bigger, avoid when being anchored using bolt
Anchorage part deformation occur causes anchoring not close so that air bag is connected more firm with sole plate during installation, and increase uses
Life-span.Local reinforcing layers can use warp-weft same-nature canvas to make, good with the affinity of rubber.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention,
Fig. 2 is that portion structure schematic diagram one is anchored in the present invention；
Fig. 3 is that portion structure schematic diagram two is anchored in the present invention,
Fig. 4 is mplifying structure schematic diagram at A in Fig. 1,
Fig. 5 is step 1 in the present invention）Schematic diagram,
Fig. 6 is step 2 in the present invention）Schematic diagram,
Fig. 7 is step 3 in the present invention）Schematic diagram,
Fig. 8 is step 4 in the present invention）Schematic diagram,
Fig. 9 is step 5 in the present invention）Schematic diagram；
1 is airbag body in figure, and 11 be capsula interna, and 12 be casing ply, and 13 be sub-surface reinforcement, and 2 be anchoring position, and 21 be local
Strengthening layer, 22 be contiguous block, and 3 be entry/exit gas port, and 4 be anchor hole.
Embodiment
A kind of gas shield dam air bag as shown in Figure 1 of the invention, including airbag body 1, airbag body are provided with entry/exit gas port 3,
At least two layers of casing ply 12 is provided with the airbag body 1（45 ° of oblique shapings, or 90 ° of orthogonal shapings）, in the airbag body
A side be provided with strip anchoring position, anchoring position and the airbag body 1, which vulcanize, to be integrated, at the anchoring position
Uniform some anchor holes 4 on 2.Anchor hole can be reserved in vulcanization, can also be beaten according to field working conditions on anchoring position 2
Hole, form anchor hole 4.Gas shield is fixed on through the shield dam air bag that makes to bring about the desired sensation of the anchor hole 4 on anchoring position by bolt during installation
On the sole plate on dam, it is not necessary to the perforate on the working face of airbag body, do not influence the overall structure of airbag body, using
When airbag body only need to bear pressure caused by current height, it is not necessary to additionally bear the sky being sealed in airbag body again
Pressure caused by gas, the pressing plate for coordinating anchoring with bolt are not bearing to seal caused expansive force, while airbag body
Entirety is born pressure and diminished so that airbag body easy damaged when in use, service life length, due to need not be directly in air bag
Perforate on body, the overall structure of airbag body is not destroyed so that gas gas shield dam capsule bulk strength is high, is hardly damaged, uses the longevity
Life length.
At the anchoring position 2 with being respectively arranged with sub-surface reinforcement 13 on the top surface of the airbag body 1 and bottom surface（Through
Latitude same sex canvas, the skin being commonly called as in a kind of material of compression strength and tensile strength all same in all directions, that is, industry
Film cloth）.Sub-surface reinforcement strengthens airbag body 1 with anchoring the bonding strength at position 2 so that anchoring position 2 and the air bag sheet
The bonding strength of body 1 is higher, and compression strength is bigger, and the pressure that connecting portion can be born is bigger, ensures junction energy under hydraulic pressure
Enough it is connected firmly, improves the service life of airbag body 1.And due to being provided with sub-surface reinforcement 13, current are not directly to connection
Position produces pressure, but produces pressure to sub-surface reinforcement 13 so that bearing area is bigger, pressure dissipation, in unit area
Bear pressure to diminish, so that the compression strength rising that airbag body 1 is overall, it is ensured that connecting portion can connect under hydraulic pressure
Firmly, the service life of airbag body 1 is improved so as to lift the overall service life of gas shield dam air bag.
At least one layer of local reinforcing layers 21 are provided with the short transverse at the anchoring position.By multilayer local reinforcing layers
The anchoring position 2 being formed by stacking improves the overall intensity in anchoring position, overcomes rubber to be produced when being compressed by anchoring piece forever
Deformation, strengthens anchoring position bulk strength, and anti-horizontal shear force is strong.So that the rigidity of anchoring position 2 is bigger, avoid using
Occurring the anchoring upper part of position 2 deformation when bolt anchors causes anchoring not close so that air bag is connected with sole plate during installation
More firmly, service life is increased while lifting security.Local reinforcing layers can use warp-weft same-nature canvas to make, with rubber
The affinity of glue is good, and easily vulcanization is connected and is connected firmly.
It is described anchoring position 2 and the airbag body 1 between set contiguous block 22, the side of the contiguous block 22 with it is described
Airbag body 1 is bonded, and the opposite side of the contiguous block is bonded with the anchoring position 2.Because the edge of airbag body 1 is not advised
Then, cause anchoring position 2 to be bonded with airbag body 1 in sulfidation not close, cause bulk strength to reduce, therefore anchoring
Position 2 sets contiguous block 22 between airbag body 1, between filling up between anchoring position and airbag body and anchoring position
Gap so that be connected firmly between airbag body and anchoring position, intensity is high.
The side at the anchoring position 2 is bonded with the airbag body 1.In order to reduce vulcanization part, overall vulcanization is reduced
Time, accelerate air bag production efficiency, can will anchor the side at position 2 according to the outer rim of airbag body 1 when making and anchoring position 2
Shape make, when being vulcanized directly will anchoring position 2 vulcanize with airbag body 1, on the one hand reduce overall cure time,
Accelerate air bag production efficiency, on the other hand eliminate contiguous block, reduce materials'use, reduce production cost.
A kind of processing technology of gas shield dam air bag described in claim 1, is processed as follows：
1）The capsula interna 11 of airbag body 1 is molded, and obtains capsula interna base；Capsula interna base is made using gum so that the elasticity of capsula interna base is big,
It is not easy to burst.
2）At least two layers of casing ply 12 is wrapped up on the capsula interna base of the shaping；At least two layers of casing ply is wrapped up on capsula interna
12, the rigidity of capsula interna 11 is strengthened, avoids capsula interna 11 in use from inflating cracked so that capsula interna can bear higher gas
Different according to field working conditions when being pressed in processing, the casing ply with the fitting of capsula interna base can be orthogonal with capsula interna base, can also be with capsula interna
Base oblique, adjacent two layers casing ply be necessary for 90 ° it is orthogonal so that pressure is uniformly distributed by capsula interna when bearing internal gas pressure
On whole casing ply, avoid capsula interna surface from bearing pressure uneven, cause the partial fracture of capsula interna 11.
3）Top surface and the sub-surface reinforcement 13 of bottom surface are bonded, stays anchoring position connection side；Sub-surface reinforcement（Warp-weft same-nature sail
Cloth）The intensity on capsula interna surface is strengthened, while also protects casing ply 12, avoids casing ply 12 from directly by water impact, breaking
The structure of bad casing ply 12, sub-surface reinforcement 13 can use the vulcanization of monoblock warp-weft same-nature canvas on the outside of casing ply, due to warp
The surface of latitude same sex canvas is smooth so that small flow resistance, reduces resistance to water-flow during air bag use on gas shield dam, also reduces
Pressure of the current to airbag body 1 so that airbag body 1 bears pressure reduction, extends the service life of airbag body 1.
4）The termination of the sub-surface reinforcement of top surface is routed up, is bonded local reinforcing layers 21 piecewise, until reaching height, forms anchor
Gu position 2, the butt joint edge at anchoring position 2 is fully bonded with the butt joint edge of capsula interna（Do not interspace）；Anchor position butt joint edge according to
The shape of air bag outer rim is set, and is anchored the butt joint edge at position and is fully bonded with the butt joint edge of capsula interna, is not interspaced, and it is strong to improve connection
Degree.Or contiguous block 22 is set between anchoring position and capsula interna, make up the gap between anchoring position and capsula interna, anchor with contiguous block
Gu the butt joint edge at position is fully bonded with the butt joint edge of capsula interna, do not interspace, improve bonding strength.
5）Turn back the termination of the sub-surface reinforcement 13 of top surface, overall vulcanization so that top surface enhancement layer, capsula interna, anchoring position
Vulcanize simultaneously between contiguous block, it is ensured that vulcanization is abundant.
6）Gas shield dam air bag is made, finishes.
The step 5）Airbag body 1 is inflated during middle overall vulcanization.That is inflation vulcanization so that air bag will not go out in vulcanization
Existing fold, vulcanization is more uniform, improves the service life of air bag.
The step 2）The adjacent casing ply of middle casing ply is orthogonal in 90 °.At least two layers of casing ply is wrapped up on capsula interna
12, the rigidity of capsula interna 11 is strengthened, avoids capsula interna 11 in use from inflating cracked so that capsula interna can bear higher gas
Different according to field working conditions when being pressed in processing, the casing ply with the fitting of capsula interna base can be orthogonal with capsula interna base, can also be with capsula interna
Base oblique, adjacent two layers casing ply be necessary for 90 ° it is orthogonal so that pressure is uniformly distributed by capsula interna when bearing internal gas pressure
On whole casing ply, avoid capsula interna surface from bearing pressure uneven, cause the partial fracture of capsula interna 11.
According to actual use operating mode selection casing ply, the arrangement mode on capsula interna, use range are wide again.Adjacent carcass plies are in
90 ° it is orthogonal cause capsula interna resistance to compression it is more uniform, it is cracked in capsula interna gas replenishment process when avoiding occurring using individual layer casing ply,
Capsula interna compression strength is big, service life length.
The step 4）Middle anchoring position is prefabricated into an entirety by the vulcanization of local reinforcing layers 21 being bonded piecewise.Anchoring section
Position directly can directly be carried out vulcanization connection from suitable anchoring position according to air bag specification when needing to use, made with prefabricated
The shortening of air bag overall processing time is obtained, improves processing efficiency.
Claims (9)
1. a kind of gas shield dam air bag, including airbag body, the airbag body is interior to be provided with least two layers of casing ply, and its feature exists
In, strip anchoring position is provided with a side of the airbag body, the anchoring position is integrated with air bag vulcanization,
Uniform some anchor holes on the anchoring position.
2. a kind of gas shield dam air bag according to claim 1, it is characterised in that at the anchoring position and the air bag sheet
Sub-surface reinforcement is respectively arranged with the top surface of body and bottom surface.
3. a kind of gas shield dam air bag according to claim 1, it is characterised in that in the short transverse at the anchoring position
It is provided with least one layer of local reinforcing layers.
4. a kind of gas shield dam air bag according to claim 1, it is characterised in that the anchoring position and the airbag body
Between contiguous block is set, the side of the contiguous block is bonded with the airbag body, the opposite side of the contiguous block and the anchor
Gu position is bonded.
5. a kind of gas shield dam air bag according to claim 1, it is characterised in that the side at the anchoring position and the gas
Capsule body is bonded.
6. the processing technology of the gas shield dam air bag described in a kind of claim 1, it is characterised in that process as follows：
1）The capsula interna shaping of airbag body, obtains capsula interna base；
2）At least two layers of casing ply is wrapped up on the capsula interna base, obtains air bag base；
3）In the top surface of the air bag base and bottom surface difference coating surface enhancement layer, anchoring position connection side is stayed；
4）The termination of the sub-surface reinforcement of top surface is routed up, is bonded local reinforcing layers piecewise, until reaching height, forms anchoring section
Position, anchors the butt joint edge at position and is fully bonded with the butt joint edge of capsula interna；
5）Turn back the termination of the sub-surface reinforcement of top surface, overall vulcanization so that top surface enhancement layer, capsula interna, anchoring position and connection
Vulcanize simultaneously between block, it is ensured that vulcanization is abundant；
6）Gas shield dam air bag is made, finishes.
A kind of 7. processing technology for the gas shield dam air bag stated according to claim 6, it is characterised in that the step 5）Middle overall sulfur
Airbag body is inflated during change.
A kind of 8. processing technology for the gas shield dam air bag stated according to claim 6, it is characterised in that the step 2）Middle casing ply
Adjacent carcass plies in 90 ° it is orthogonal.
A kind of 9. processing technology for the gas shield dam air bag stated according to claim 6, it is characterised in that the step 4）Middle anchoring section
Position is prefabricated into an entirety by the local reinforcing layers vulcanization being bonded piecewise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136334.1A CN107761672B (en) | 2017-11-16 | 2017-11-16 | Air bag for air shield dam and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136334.1A CN107761672B (en) | 2017-11-16 | 2017-11-16 | Air bag for air shield dam and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107761672A true CN107761672A (en) | 2018-03-06 |
| CN107761672B CN107761672B (en) | 2023-11-17 |
Family
ID=61279400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711136334.1A Active CN107761672B (en) | 2017-11-16 | 2017-11-16 | Air bag for air shield dam and processing technology thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107761672B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708387A (en) * | 2018-08-06 | 2018-10-26 | 烟台桑尼橡胶有限公司 | A kind of fixed scuta is flexible coupling band with basis |
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| CN207419390U (en) * | 2017-11-16 | 2018-05-29 | 江苏扬州合力橡胶制品有限公司 | Gas shield dam air bag |
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2017
- 2017-11-16 CN CN201711136334.1A patent/CN107761672B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004060361A (en) * | 2002-07-31 | 2004-02-26 | Akio Iida | Derricking gate |
| KR100767032B1 (en) * | 2007-03-27 | 2007-10-17 | (주)대도엔텍 | Fixing structure of protective cover for rubber dam |
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| CN108708387A (en) * | 2018-08-06 | 2018-10-26 | 烟台桑尼橡胶有限公司 | A kind of fixed scuta is flexible coupling band with basis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107761672B (en) | 2023-11-17 |
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