CN211313108U - Mounting structure for bakelite corrugated board - Google Patents
Mounting structure for bakelite corrugated board Download PDFInfo
- Publication number
- CN211313108U CN211313108U CN201922099898.3U CN201922099898U CN211313108U CN 211313108 U CN211313108 U CN 211313108U CN 201922099898 U CN201922099898 U CN 201922099898U CN 211313108 U CN211313108 U CN 211313108U
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- Prior art keywords
- bakelite
- waterproof
- mounting
- board
- folding part
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- 229920001342 Bakelite® Polymers 0.000 title claims abstract description 62
- 239000004637 bakelite Substances 0.000 title claims abstract description 62
- 238000009434 installation Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000005187 foaming Methods 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 239000011490 mineral wool Substances 0.000 claims description 3
- 230000030279 gene silencing Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 18
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009972 noncorrosive effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
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- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The utility model discloses a mounting structure that bakelite unrestrained board was used, including bakelite unrestrained board main part, the left side integrated into one piece of bakelite unrestrained board main part has first book portion, the first installation through-hole that the equidistance was arranged is seted up at the top of first book portion, the right side integrated into one piece of bakelite unrestrained board main part has second book portion, the second installation through-hole that the equidistance was arranged is seted up at the top of second book portion, the inside of second installation through-hole all alternates there is the fastening member rather than threaded connection, fastening member all includes the connection boss, the bottom of connecting the boss all contacts with the top of second book portion, it is equipped with the waterproof board all to connect to overlap on the boss, the bottom of waterproof board all contacts with the top of second book portion. The utility model discloses a, it is poor to have solved current bakelite unrestrained board installation water-proof effects, and the screw-up easily makes the bakelite unrestrained board warp, reduces the inseparable degree of laminating to cause the problem that the roofing leaked easily.
Description
Technical Field
The utility model relates to a bakelite corrugated sheet technical field specifically is a mounting structure that bakelite corrugated sheet was used.
Background
The bakelite corrugated plate roof structure has been widely applied to various storage and other structures of industrial and civil buildings due to the special shape and function thereof, the shorter manufacturing and construction period thereof has been generally favored by constructors of users, in recent years, with the development of national economy and the progress of science and technology, the structure and materials of large industrial buildings in the industries of metallurgy, textile, machinery and the like of extension and new construction are greatly changed, and the traditional structural materials of cement asbestos corrugated plates, glass steel corrugated plates, imitated glazed corrugated plates, asbestos tiles, glass and the like cannot meet the requirements of modern industrial production technology due to the defects of heaviness, easy breakage and the like.
The installation between the present bakelite wave plate all adopts ordinary screw to connect, and this kind of mounting structure is simple, but has water-proof effects poor, and the bakelite wave plate makes the bakelite wave plate warp easily when directly using the screw fastening, has reduced the inseparable degree of waterproof rubber and the laminating of bakelite wave plate to cause the roofing problem of leaking easily, provides a mounting structure for bakelite wave plate for this reason and solves above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a mounting structure that bakelite unrestrained board was used has the improvement water-proof effects, and the protection bakelite unrestrained board can not lead to the advantage of leaking because of warping, and it is poor to have solved current bakelite unrestrained board installation water-proof effects, and the screw-up easily makes the bakelite unrestrained board warp, reduces the inseparable degree of laminating to cause the problem that the roofing leaked easily.
For realizing above-mentioned improvement water-proof effects, the protection bakelite wave plate can not lead to the purpose of leaking because of warping, the utility model provides a following technical scheme:
a mounting structure for a bakelite corrugated board comprises a bakelite corrugated board main body, wherein a first folding part is integrally formed on the left side of the bakelite corrugated board main body, first mounting through holes which are arranged at equal intervals are formed in the top of the first folding part, a second folding part is integrally formed on the right side of the bakelite corrugated board main body, second mounting through holes which are arranged at equal intervals are formed in the top of the second folding part, and fastening members which are in threaded connection with the second mounting through holes are inserted in the second mounting through holes;
the fastening components comprise connecting bosses, the bottoms of the connecting bosses are all contacted with the top of the second folding part, waterproof plates are sleeved on the connecting bosses, the bottoms of the waterproof plates are all contacted with the top of the second folding part, waterproof press blocks are arranged at the tops of the waterproof plates, extrusion through grooves are formed in the waterproof press blocks, fastening screws penetrate through the extrusion through grooves, the bottom ends of the fastening screws sequentially penetrate through the waterproof press blocks, the waterproof plates and the connecting bosses, the bottom ends of the fastening screws extend to the bottom of the first folding part, and the fastening screws are respectively in threaded connection with the first mounting through holes and the second mounting through holes;
the bottom of the bakelite wave plate main body is fixedly connected with a foaming layer, the bottom end of the fastening screw penetrates through and extends into the foaming layer, the fastening screw is in threaded connection with the foaming layer, and the bottom of the foaming layer is fixedly connected with a reinforcing layer.
Preferably, all overlap on the fastening screw and be equipped with waterproof gasket, waterproof gasket's bottom all contacts with the top of waterproof briquetting.
Preferably, two water drainage tank have been seted up at the top of first book portion, two water drainage tank is located the both sides of first installation through-hole respectively, two water drainage tank's front cross-section all is the V font.
Preferably, the bakelite wave plate main body, the first folding part and the top of the first mounting through hole are coated with waterproof coatings, and the waterproof coatings are polyvinyl chloride elastic waterproof coatings.
Preferably, the bottom of the reinforcing layer is fixedly connected with a sound attenuation layer, and the sound attenuation layer is made of mineral wool materials.
Preferably, the connecting boss is made of soft rubber material.
Compared with the prior art, the utility model provides a mounting structure that bakelite unrestrained board was used possesses following beneficial effect:
1. the mounting structure for the bakelite corrugated board is characterized in that the first folding part is covered by the second folding part, the second mounting through hole corresponds to the first mounting through hole, the connecting boss made of soft rubber material is folded, the waterproof board is sleeved on the connecting boss, the connecting boss is aligned to the second mounting through hole, the waterproof press block is placed above the connecting boss, the waterproof gasket is sleeved on the fastening screw, the fastening screw is screwed downwards through the extrusion through groove, the fastening screw sequentially penetrates through the waterproof press block, the connecting boss, the second mounting through hole and the first mounting through hole, the fastening screw is in threaded connection with the second mounting through hole, the first mounting through hole and the foaming layer, the waterproof press block is in downward contact with the connecting boss when being screwed, the top of the connecting boss is bent downwards and is in contact with the top of the waterproof board, and after being screwed, the connecting boss, the waterproof board and the waterproof press block are in tight contact, the fastening screw can not contact the surface of the second folding part, the deformation of the bakelite wave board during fastening can be prevented, the tightness degree is reduced, the matching of the connecting boss, the waterproof plate, the waterproof pressing block and the waterproof gasket can prevent the water leakage and water seepage at the position where the fastening screw is screwed, the waterproof effect during installation is improved, the foaming layer has excellent flame retardant property, the overall fireproof and heat insulation effects can be improved, the safety and practicability are improved, the supporting force can be provided through the reinforcing layer, so that the hardness of the main body of the bakelite wave board is increased, the overall waterproof performance is improved, the structures used in the whole installation process are tightly attached, the surface of the bakelite wave board can not be directly contacted in the fastening process, the waterproof effect is improved, the operation is simple, the problems that the installation waterproof effect of the existing bakelite wave board is poor, the bakelite wave board is easy to deform due to screw fastening, and the tightness, thereby easily causing the problem of roof water leakage.
2. This mounting structure that bakelite wave plate was used, through the setting of waterproof gasket, make the waterproof briquetting of wearing and tearing messenger damage at fastening screw fastening to further play waterproof effect.
3. This mounting structure that bakelite wave plate was used, through the water drainage tank of V font, the installation back is in the strong wind heavy rain, probably permeates the rainwater from first book portion and second between the book portion, and the rainwater of infiltration can directly be followed water drainage tank and discharged, improves holistic waterproof performance.
4. The mounting structure for the bakelite corrugated board has the advantages that the waterproof coating made of the polyvinyl chloride elastic waterproof coating has the effects of water resistance, moisture resistance, mildew resistance and the like, so that the integral rust resistance is improved, and the service life is prolonged.
5. The installation structure for the bakelite corrugated board has the advantages that through the arrangement of the sound absorption layer, the installation structure is a heat preservation, heat insulation and sound absorption material which is light in weight, durable, non-combustible, non-corrosive, non-moldy, non-damaged by worms and the like, so that the noise caused by the operation of the installation structure is reduced.
This mounting structure that bakelite wave plate was used is soft rubber material through connecting the boss, makes to connect boss and the contact of second flange top and makes and have safeguard function, can not lead to the second flange surface to warp when the fastening to elastic deformation makes device waterproof performance better.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the installation structure of the first folding part and the second folding part of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
fig. 4 is an exploded view of the fastening member package of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1-4, an installation structure for a bakelite corrugated board comprises a bakelite corrugated board main body 1, wherein a first folding part 2 is integrally formed at the left side of the bakelite corrugated board main body 1, first installation through holes 3 arranged at equal intervals are formed at the top of the first folding part 2, a second folding part 4 is integrally formed at the right side of the bakelite corrugated board main body 1, second installation through holes 5 arranged at equal intervals are formed at the top of the second folding part 4, during installation, the second folding part 4 covers the first folding part 2, the second installation through holes 5 correspond to the first installation through holes 3, and fastening members 6 in threaded connection with the second installation through holes 5 are inserted into the second installation through holes 5;
the fastening components 6 comprise connecting bosses 7, the bottoms of the connecting bosses 7 are in contact with the tops of the second folding parts 4, waterproof plates 8 are sleeved on the connecting bosses 7, the bottoms of the waterproof plates 8 are in contact with the tops of the second folding parts 4, waterproof press blocks 9 are arranged at the tops of the waterproof plates 8, extrusion through grooves 10 are formed in the waterproof press blocks 9, fastening screws 11 penetrate through the extrusion through grooves 10, the bottom ends of the fastening screws 11 sequentially penetrate through the waterproof press blocks 9, the waterproof plates 8 and the connecting bosses 7, the bottom ends of the fastening screws 11 extend to the bottoms of the first folding parts 2, the fastening screws 11 are in threaded connection with the first mounting through holes 3 and the second mounting through holes 5 respectively, the waterproof plates 8 are sleeved on the connecting bosses 7, the waterproof press blocks 9 are placed above the connecting bosses 7, the fastening screws 11 are screwed downwards through the extrusion through grooves 10, and the fastening screws 11 sequentially penetrate through the waterproof press blocks 9, The connecting boss 7, the second mounting through hole 5 and the first mounting through hole 3 are connected, the fastening screw 11 is in threaded connection with the second mounting through hole 5, the first mounting through hole 3 and the foaming layer 12, the waterproof pressing block 9 is in downward contact with the connecting boss 7 while being screwed, the top of the connecting boss 7 is bent downward and is in contact with the top of the waterproof plate 8, and after being screwed, the connecting boss 7, the waterproof plate 8 and the waterproof pressing block 9 are in tight contact;
the bottom fixedly connected with foaming layer 12 of bakelite wave plate main part 1 has splendid fire behaviour through foaming layer 12, can improve holistic fire prevention, thermal-insulated effect, improves safe practicality, and fastening screw 11's bottom is run through and is extended to the inside of foaming layer 12, fastening screw 11 and foaming layer 12 threaded connection, and the bottom fixedly connected with enhancement layer 13 of foaming layer 12 can provide the holding power through enhancement layer 13 to increase the hardness of bakelite wave plate main part 1.
Further, all overlap on fastening screw 11 and be equipped with waterproof gasket 14, waterproof gasket 14's bottom all with the top contact of waterproof briquetting 9, through waterproof gasket 14's setting, make wearing and tearing prevention messenger waterproof briquetting 9 damage at fastening screw 11 fastening to further play waterproof effect.
Further, two water drainage tank 15 have been seted up at the top of first portion 2 of folding, and two water drainage tank 15 are located the both sides of first mounting hole 3 respectively, and two water drainage tank 15 are just looked the cross-section and all are the V font, through the water drainage tank 15 of V font, and after the installation when the strong wind is rainy, probably permeate the rainwater between the portion 4 from first portion 2 of folding and second, the rainwater of infiltration can directly be followed water drainage tank 15 and discharged, improves holistic waterproof performance.
Furthermore, the top of the bakelite wave plate main body 1, the top of the first folding part 2 and the top of the first mounting through hole 3 are coated with waterproof coatings 16, the waterproof coatings 16 are polyvinyl chloride elastic waterproof coatings, and the waterproof coatings 16 made of the polyvinyl chloride elastic waterproof coatings have the effects of water resistance, moisture resistance, mildew resistance and the like, so that the integral rust resistance is improved, and the service life is prolonged.
Furthermore, the bottom of the reinforcing layer 13 is fixedly connected with a sound-absorbing layer 17, the sound-absorbing layer 17 is made of mineral wool materials, and the sound-absorbing layer 17 is a heat-insulating and sound-absorbing material which is light in weight, durable, non-combustible, non-corrosive, non-mildewed, non-moth-eaten and the like, so that the noise caused by the operation of the sound-absorbing material is reduced.
Further, connect boss 7 and make for soft rubber materials, be soft rubber materials through connecting boss 7, make and connect boss 7 and the contact of 4 tops of second portion of folding and make and have safeguard function, can not lead to the second to fold 4 surfaces of portion and warp when the fastening to elastic deformation makes device waterproof performance better.
The working principle is as follows: when the wood wave board is installed, two wood wave board main bodies 1 are assembled, a second folding part 4 covers a first folding part 2, a second installation through hole 5 corresponds to a first installation through hole 3, a connection boss 7 made of soft rubber materials is folded, a waterproof board 8 is sleeved on the connection boss 7, the connection boss 7 is aligned to the second installation through hole 5, a waterproof pressing block 9 is placed above the connection boss 7, a waterproof gasket 14 is sleeved on a fastening screw 11, the fastening screw 11 is screwed down through an extrusion through groove 10, the fastening screw 11 sequentially penetrates through the waterproof pressing block 9, the connection boss 7, the second installation through hole 5 and the first installation through hole 3, the fastening screw 11 is in threaded connection with the second installation through hole 5, the first installation through hole 3 and a foaming layer 12, the waterproof pressing block 9 contacts the connection boss 7 downwards while being screwed down, so that the top of the connection boss 7 is bent downwards, and contacts the top of the waterproof board 8, after being screwed down, the connecting boss 7, the waterproof board 8 and the waterproof pressing block 9 are in close contact, the fastening screw 11 can not contact the surface of the second folding part 4, the deformation of the bakelite wave board during fastening can be prevented, and the phenomenon of tightness is reduced, and the cooperation of the connecting boss 7, the waterproof board 8, the waterproof pressing block 9 and the waterproof gasket 14 can prevent the water leakage and water seepage at the position where the fastening screw 11 is screwed down, so that the waterproof effect during installation is improved, and then the V-shaped drainage groove 15 is passed, after being installed, in strong wind and heavy rain, rainwater can possibly permeate between the first folding part 2 and the second folding part 4, the permeated rainwater can be directly discharged from the drainage groove 15, the foaming layer 12 has excellent flame retardant performance, the overall fireproof and heat insulation effects can be improved, the safety and practicability are improved, the supporting force can be provided through the reinforcing layer 13, so as to increase the hardness of the bakelite wave board main body 1, the waterproof structure has the advantages that the overall waterproof performance is improved, the structures used in the whole installation process are tightly attached, the surfaces of the bakelite corrugated boards cannot be in direct contact in the fastening process, the waterproof effect is improved, the operation is simple, the problem that the existing bakelite corrugated boards are poor in waterproof effect in installation, the bakelite corrugated boards are easily deformed due to screw fastening, the attaching tightness is reduced, and accordingly the problem of roof water leakage is easily caused.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a mounting structure that bakelite wave plate was used, includes bakelite wave plate main part (1), its characterized in that: a first folding part (2) is integrally formed on the left side of the bakelite wave board main body (1), first mounting through holes (3) which are arranged at equal intervals are formed in the top of the first folding part (2), a second folding part (4) is integrally formed on the right side of the bakelite wave board main body (1), second mounting through holes (5) which are arranged at equal intervals are formed in the top of the second folding part (4), and fastening members (6) which are in threaded connection with the second mounting through holes (5) are inserted in the second mounting through holes;
the fastening members (6) comprise connecting bosses (7), the bottoms of the connecting bosses (7) are in contact with the tops of the second folding parts (4), the connecting bosses (7) are all sleeved with waterproof plates (8), the bottoms of the waterproof plates (8) are all contacted with the top of the second folding parts (4), the top of the waterproof board (8) is provided with a waterproof pressing block (9), the waterproof pressing block (9) is internally provided with an extrusion through groove (10), fastening screws (11) are inserted into the extrusion through grooves (10), the bottom ends of the fastening screws (11) sequentially penetrate through the waterproof pressing block (9), the waterproof plate (8) and the connecting boss (7), the bottom ends of the fastening screws (11) extend to the bottom of the first folding part (2), the fastening screw (11) is in threaded connection with the first mounting through hole (3) and the second mounting through hole (5) respectively;
the bottom of the bakelite wave board main body (1) is fixedly connected with a foaming layer (12), the bottom end of the fastening screw (11) penetrates through and extends into the foaming layer (12), the fastening screw (11) is in threaded connection with the foaming layer (12), and the bottom of the foaming layer (12) is fixedly connected with a reinforcing layer (13).
2. The installation structure for bakelite corrugated board as set forth in claim 1, wherein: all the cover is equipped with waterproof gasket (14) on fastening screw (11), the bottom of waterproof gasket (14) all contacts with the top of waterproof briquetting (9).
3. The installation structure for bakelite corrugated board as set forth in claim 1, wherein: two water drainage tank (15), two have been seted up at the top of first book portion (2) water drainage tank (15) are located the both sides of first installation through-hole (3) respectively, two the front cross-section of water drainage tank (15) all is the V font.
4. The installation structure for bakelite corrugated board as set forth in claim 1, wherein: the top of the bakelite wave plate main body (1), the top of the first folding part (2) and the top of the first mounting through hole (3) are coated with waterproof coatings (16), and the waterproof coatings (16) are polyvinyl chloride elastic waterproof coatings.
5. The installation structure for bakelite corrugated board as set forth in claim 1, wherein: the bottom of the reinforcing layer (13) is fixedly connected with a silencing layer (17), and the silencing layer (17) is made of mineral wool materials.
6. The installation structure for bakelite corrugated board as set forth in claim 1, wherein: the connecting boss (7) is made of soft rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099898.3U CN211313108U (en) | 2019-11-29 | 2019-11-29 | Mounting structure for bakelite corrugated board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099898.3U CN211313108U (en) | 2019-11-29 | 2019-11-29 | Mounting structure for bakelite corrugated board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211313108U true CN211313108U (en) | 2020-08-21 |
Family
ID=72065504
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922099898.3U Expired - Fee Related CN211313108U (en) | 2019-11-29 | 2019-11-29 | Mounting structure for bakelite corrugated board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211313108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126150A (en) * | 2021-03-26 | 2022-09-30 | 奥动新能源汽车科技有限公司 | Warehouse board, warehouse board combined unit and power conversion station or energy storage station |
-
2019
- 2019-11-29 CN CN201922099898.3U patent/CN211313108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126150A (en) * | 2021-03-26 | 2022-09-30 | 奥动新能源汽车科技有限公司 | Warehouse board, warehouse board combined unit and power conversion station or energy storage station |
| CN115126150B (en) * | 2021-03-26 | 2025-04-29 | 奥动新能源汽车科技有限公司 | Storage panels, storage panel combination units, and battery swap stations or energy storage stations |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |