CN211143800U - Reusable rainproof steam-curing dual-purpose shed for beam yard - Google Patents
Reusable rainproof steam-curing dual-purpose shed for beam yard Download PDFInfo
- Publication number
- CN211143800U CN211143800U CN201921143491.XU CN201921143491U CN211143800U CN 211143800 U CN211143800 U CN 211143800U CN 201921143491 U CN201921143491 U CN 201921143491U CN 211143800 U CN211143800 U CN 211143800U
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- Prior art keywords
- ceiling
- rain
- proof
- cross beam
- curing
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- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 238000005096 rolling process Methods 0.000 claims description 21
- 238000004321 preservation Methods 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims 1
- 238000010025 steaming Methods 0.000 abstract description 5
- 239000004567 concrete Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Landscapes
- Tents Or Canopies (AREA)
Abstract
The utility model provides a reusable dual-purpose shed for rain-proof steaming and curing in beam yard, including a ceiling structure and a supporting upright post connected with the ceiling structure, the ceiling structure includes a ceiling support and a rain-proof insulation board, the rain-proof insulation board is wrapped on the outer side of the ceiling support, the ceiling support includes a first beam, a second beam, a third beam and a plurality of triangle supporting beams which are arranged in sequence, the first beam, the second beam and the third beam are parallel to each other, the first beam and the third beam are identical in structure, the triangle supporting beams are respectively vertical to the first beam, the second beam and the third beam, two ends of the triangle supporting beams are respectively fixedly connected on the first beam and the third beam, the second beam passes through each triangle supporting beam and is fixedly connected with the triangle supporting beam; the first crossbeam and the third crossbeam are symmetrically provided with a plurality of groups of ceiling stand columns, the top ends of the support stand columns are provided with stand column support seats, and the ceiling stand columns are detachably connected with the stand column support seats.
Description
Technical Field
The utility model relates to a railway construction technical field especially relates to a repeatedly usable's rain-proof dual-purpose canopy that evaporates in beam yard.
Background
It is known that in the construction process of roads, railways, bridges, tunnels and the like, because transportation and cost are limited, beam yards are basically built at places close to construction sites to meet beam construction on projects, but at present, the beam yards generally adopt an open-air production mode and avoid construction in rainy days as far as possible, so that sudden rain situations in the concrete pouring process cannot be effectively protected, the strength of concrete is directly influenced, adverse effects on the aspects of the durability and the like of the concrete can be caused, concrete segregation, bleeding and the like can be caused due to the mixing of rainwater, water marks and sand lines are easily formed on the surfaces of beam bodies after the formwork is removed, and the appearance quality of the beam bodies is seriously influenced. In addition, during construction in winter, the temperature of the template and the steel bars before concrete pouring is not effectively increased, and particularly, the environmental temperature and the temperature of the template in the concrete pouring process cannot be effectively maintained, so that the mold-entering temperature of concrete is reduced, and the quality of the concrete is influenced. Therefore, according to the 'production permission of prestressed concrete railway bridge simple-supported beam products, namely the law of enforcement of regulations' published by the State administration of quality and supervision, the rainproof protection and the heat preservation protection are both achieved in the beam manufacturing process. Present beam yard both need make the weather enclosure usually, need make again and evaporate foster canopy to satisfy different demands, this is with high costs to small-size beam yard, and area is big, and the weather enclosure in present beam yard etc. adopt self-control steel reinforcement cage hoist etc. more simultaneously, and not only the structure is heavy, removes the difficulty, and not convenient to dismantle, brings a great deal of inconvenience when beam yard equipment shifts, and self-control steel reinforcement cage hoist preparation cycle is long simultaneously, occupies the labour cost, extension construction cycle.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a reusable dual-purpose shed for rain-proof steaming and curing in beam yard, which comprises a ceiling structure and a supporting upright post connected with the ceiling structure, wherein the ceiling structure comprises a ceiling support and a rain-proof insulation board, the rain-proof insulation board is wrapped on the outer side of the ceiling support, the ceiling support comprises a first beam, a second beam, a third beam and a plurality of triangular supporting beams which are arranged in sequence, have the same structure and are symmetrical structures, the first beam, the second beam and the third beam are parallel to each other, the first beam and the third beam have the same structure, the triangular supporting beams are respectively perpendicular to the first beam, the second beam and the third beam, two ends of the triangular supporting beams are respectively and fixedly connected with the first beam and the third beam, the second cross beam penetrates through each triangular support beam and is fixedly connected with the triangular support beam; the first cross beam and the third cross beam are symmetrically provided with a plurality of groups of ceiling stand columns, stand column supporting seats are arranged at the top ends of the supporting stand columns, and the ceiling stand columns are detachably and fixedly connected with the stand column supporting seats.
Preferably, the fixed heat preservation tarpaulin of being provided with of ceiling structure lower limb rolls up the curtain, heat preservation tarpaulin is rolled up the curtain and is laid respectively ceiling structure all around and closely splice, accomodate heat preservation tarpaulin in the heat preservation tarpaulin is rolled up the curtain, just heat preservation tarpaulin is rolled up the curtain and is opened the back and adjacent pass through hasp fixed connection between the heat preservation tarpaulin.
Preferably, the length of the heat-insulating tarpaulin is greater than the height of the supporting upright post.
Preferably, a plurality of lifting rings are uniformly distributed on the ceiling support, the lifting rings are fixedly arranged on the triangular supporting beam, and the lifting rings are located on the outer side of the rainproof heat-insulation board.
Preferably, a plurality of support rods are erected on the triangular support beam and parallel to the first cross beam, and the rain-proof insulation board at the top of the ceiling structure is detachably and fixedly arranged on the support rods.
Preferably, the ceiling supports are all square tube trusses.
Preferably, ceiling stand side is equipped with fixed picture peg, fixed picture peg with ceiling stand body coupling, be equipped with the slot on the stand supporting seat, fixed picture peg cartridge is in the slot and will through the bolt fixed picture peg with slot lateral wall fixed connection.
Preferably, a rain-proof baffle is erected at the top of the ceiling structure.
Preferably, the support column is a telescopic structure capable of being adjusted up and down.
Preferably, the first beam, the second beam and the third beam are all detachable structures.
Compared with the prior art, the beneficial effects of the utility model are that: the movable beam yard is convenient to disassemble and move, can be stored and stored for reuse, can be repeatedly used for multiple times, meets the environmental protection requirement advocated by the state, and reduces the equipment investment cost of the beam yard; the rain-proof shed has the rain-proof and steam-curing functions, so that the embarrassment that a trabecular farm is made into a plurality of sheds is reduced, particularly, in northern cities with less rainwater, the steam-curing sheds are mostly needed, but the rain-proof sheds are needed to prevent the situation, and all problems can be solved by one shed; one shed is used for replacing a plurality of sheds, so that the occupation of a beam field is reduced, and the occupation cost of the field is saved; the ceiling structure manufactured by splicing the square pipe trusses is quick and convenient to install, short in structural installation time, convenient to disassemble and recombine, suitable for transferring beam yard equipment and low in single use cost, and meets the requirement of beam yard manufacturing at any time; the stand supporting seat that the top of support post set up provides the position of putting for the ceiling stand, and the cooperation ceiling stand structure can guarantee that the ceiling structure can not drop and slide.
Drawings
Fig. 1 is the overall structure schematic diagram of the reusable rain-proof steam-curing dual-purpose shed for the beam yard.
Fig. 2 is the utility model discloses a supporting structure three-dimensional arrangement schematic diagram of a rain-proof dual-purpose canopy of curing that evaporates in repeatedly usable's roof beam field.
Fig. 3 is a side view of the supporting structure of the reusable rain-proof steam-curing dual-purpose shed for the beam yard.
Fig. 4 is an enlarged view of a portion a in fig. 3 according to the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the reusable dual-purpose shed for rain-proof steaming and curing in a beam yard according to an embodiment of the present invention includes a ceiling structure 1 and a supporting upright 2 connected to the ceiling structure 1, the ceiling structure 1 includes a ceiling support 11 and a rain-proof insulation board 12, the rain-proof insulation board 12 is wrapped outside the ceiling support 11, and rain-proof insulation board 12 can prevent rain from entering a cast beam body in rainy days; as shown in fig. 2, the ceiling bracket 11 includes a first beam 111, a second beam 112, a third beam 113, and a plurality of triangular support beams 114 with the same structure and a symmetrical structure, which are arranged in sequence, the first beam 111, the second beam 112, and the third beam 113 are parallel to each other, the first beam 111 and the third beam 113 have the same structure, the first beam 111 and the third beam 113 are respectively located at two sides of the ceiling bracket 11, the triangular support beams 114 are respectively perpendicular to the first beam 111, the second beam 112, and the third beam 113, the plurality of triangular support beams 114 are arranged at equal intervals to ensure that the ceiling bracket 11 is uniformly stressed at each location, two ends of the triangular support beams 114 are respectively fixedly connected to the first beam 111 and the third beam 113 and are fastened by bolts to facilitate later stage disassembly and transfer, the joints of the triangular support beams 114 with the first beam 111 and the third beam 113 are of long straight rod structures, the contact area between the triangular support beam 114 and the first cross beam 111 and the third cross beam 113 is increased, the structural stability of the fixed connection is improved, the middle part of the triangular support beam 114 is provided with a support vertical rod 1141, the second cross beam 112 penetrates through each triangular support beam 114 and is fixedly connected with the support vertical rod 1141 of the triangular support beam 114 through bolts, and the second cross beam 112 is used for connecting the triangular support beams 114 in series at the middle part of the triangular support beam 114, so that the stability of the ceiling support 11 is improved; a plurality of groups of ceiling upright columns 115 are symmetrically arranged on the first cross beam 111 and the third cross beam 113, upright column supporting seats 21 are arranged at the top ends of the supporting upright columns 2, and the ceiling upright columns 115 are detachably and fixedly connected with the upright column supporting seats 21 through bolts. Preferably, the ceiling supports 11 are each square tube trusses. The ceiling support 11 assembled by the square pipe truss has high structural strength and light self weight, is convenient to mount, dismount and hoist, and is convenient for later-stage beam yard equipment transfer; the triangular supporting beam 114 is more stable and firm in structure, the rainproof heat-insulation board 12 is naturally inclined downwards after being installed on the ceiling support 11, and rainwater can be distributed in the rain day, so that accumulated water at the splicing part of the rainproof heat-insulation board 12 in the middle of the ceiling can be prevented from leaking rain. The stand supporting seat 21 that the support post 2 top set up is used for accepting ceiling stand 115 to provide the fixed point, prevent that ceiling structure 1 from droing and sliding, support post 2's setting can be raised ceiling structure 1, so that the cloth machine normal beam of beating in rainy day.
Preferably, the lower edge of the ceiling structure 1 is fixedly provided with a thermal insulation tarpaulin rolling curtain 3, the thermal insulation tarpaulin rolling curtain 3 is respectively arranged around the ceiling structure 1 and is tightly spliced, the thermal insulation tarpaulin 31 is contained in the thermal insulation tarpaulin rolling curtain 3, and the adjacent thermal insulation tarpaulin 31 is fixedly connected through a hasp after the thermal insulation tarpaulin rolling curtain 3 is opened. The heat-insulating tarpaulin rolling curtain 3 comprises a heat-insulating tarpaulin 31, a rolling shaft 32, a rotating rolling shaft 33 and a rolling bead 34, the rolling bead 34 is wound on the rotating rolling shaft 33, the rolling shaft 32 is fixedly connected with the rotating rolling shaft 33, the heat-insulating tarpaulin 31 is wound on the rolling shaft 32, the effective and reasonable combination of the rain-proof shed and the steam-curing shed is realized, the dual-purpose of one shed is realized, only the function of the rain-proof shed needs to be used in the environment without steam-curing in summer and the like, the normal beam-curing work in the rainy day environment is ensured, if the steam-curing is needed after the beam-curing casting is finished, the rolling bead 34 is pulled in the forward direction, the rolling bead 34 drives the rotating rolling shaft 33 to rotate, the rotating rolling shaft 33 drives the heat-insulating tarpaulin 31 to rotate, the heat-insulating tarpaulin 31 is released until the heat-insulating tarpaulin 31 is completely released, the adjacent heat-insulating tarpaulin 31 is fixedly connected by a hasp, thereby converting the rain-, the steaming of the beam body is realized. Furthermore, the length of the heat-preservation tarpaulin 31 is larger than the height of the supporting columns 2, so that the heat-preservation tarpaulin 31 can be ensured to reach the bottom surface, the bottom end of the heat-preservation tarpaulin 31 is pressed by a heavy object, the bottom is sealed, and the steam-curing effect is ensured.
Preferably, a plurality of hanging rings 116 are uniformly distributed on the ceiling support 11, the hanging rings 116 are fixedly arranged on the triangular support beam 114, and the hanging rings 116 are all located outside the rain-proof insulation board 12. The sealant is injected into the contact part of the periphery of the hanging ring 116 and the rainproof insulation board 12 for sealing, so as to avoid rain leakage. In an embodiment, eight lifting rings 116 are provided, the eight lifting rings 116 are symmetrically arranged on two sides of the ceiling structure 1 in pairs, and four lifting rings 116 are respectively provided at two ends of the ceiling structure 1, so that the assembled ceiling structure 1 can be successfully lifted by using two gantry cranes, and the connection between the support upright 2 and the ceiling upright 115 is conveniently realized.
As shown in fig. 2, preferably, a plurality of support bars 117 are erected on the triangular support beams 114, the support bars 117 are parallel to the first cross beam 111, and the rain-proof insulation board 12 at the top of the ceiling structure 1 is detachably and fixedly mounted on the support bars 117. The bracing piece 117 erects on triangular support beam 114, and through bolt locking fastening, further reinforces the structure of ceiling support 11, and setting up of bracing piece 117 provides more fixed positions for the installation of rain-proof heated board 12 simultaneously, improves the fixed stability of rain-proof heated board 12. The supporting rod 117 is formed by splicing a plurality of square tubes with the same structure, so that the assembling and the disassembling are convenient, and the occupied space is saved.
As shown in fig. 4, preferably, a fixed inserting plate 1151 is arranged on the side surface of the ceiling upright column 115, the fixed inserting plate 1151 is integrally connected with the ceiling upright column 115, an inserting groove 22 is arranged on the upright column supporting seat 21, and the fixed inserting plate 1151 is inserted into the inserting groove 22 and fixedly connects the fixed inserting plate 1151 with the side wall of the inserting groove 22 through a bolt. In the assembling process, after the ceiling structure 1 is hoisted to a certain height by using a gantry crane, the slots 22 of the upright post supporting seats 21 are aligned with the fixed inserting plates 1151 of the ceiling upright posts 115, then the fixed inserting plates 1151 are respectively inserted into the corresponding slots 22, the supporting upright posts 2 are fixed, then the fixed inserting plates 1151 and the slots 22 are locked and fixed by using bolts, and the slots 22 and the fixed inserting plates 1151 are arranged to prevent the ceiling upright posts 115 from sliding in the mounting process.
As shown in fig. 1, preferably, a rain-proof baffle 118 is installed on the top of the ceiling structure 1 to further shield the joint of the rain-proof insulation board 12 on the top, so as to prevent rain water from leaking from the joint.
As shown in fig. 3, preferably, the supporting columns 2 are telescopic structures capable of being adjusted up and down, so that the height of the ceiling structure 1 can be adjusted, the ceiling structure 1 is elevated when needed, and not only can a normal beam-making working environment be provided for the distributing machine in rainy days, but also a working rainy day working environment can be provided for casting a higher beam body.
Preferably, the first beam 111, the second beam 112 and the third beam 113 are all detachable structures, which not only facilitate assembly and disassembly, but also facilitate the transfer and storage of the device.
From the above, the reusable dual-purpose shed for rain-proof steaming and curing of the beam yard is convenient to disassemble and move, can be stored and stored for reuse, can be repeatedly used, meets the environmental protection requirement advocated by the state, and reduces the equipment investment cost of the beam yard; the rain-proof shed has the rain-proof and steam-curing functions, so that the embarrassment that a trabecular farm is made into a plurality of sheds is reduced, particularly, in northern cities with less rainwater, the steam-curing sheds are mostly needed, but the rain-proof sheds are needed to prevent the situation, and all problems can be solved by one shed; one shed is used for replacing a plurality of sheds, so that the occupation of a beam field is reduced, and the occupation cost of the field is saved; the ceiling structure manufactured by splicing the square pipe trusses is quick and convenient to install, short in structural installation time, convenient to disassemble and recombine, suitable for transferring beam yard equipment and low in single use cost, and meets the requirement of beam yard manufacturing at any time; the stand supporting seat that the top of support post set up provides the position of putting for the ceiling stand, and the cooperation ceiling stand structure can guarantee that the ceiling structure can not drop and slide.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (10)
1. The utility model provides a rain-proof dual-purpose canopy of curing that evaporates of repeatedly usable's beam yard, include the ceiling structure and with the support post that the ceiling structure is connected, its characterized in that: the roof structure comprises a roof support and a rainproof insulation board, the rainproof insulation board is wrapped on the outer side of the roof support, the roof support comprises a first cross beam, a second cross beam, a third cross beam and a plurality of triangular support beams which are identical in structure and symmetrical in structure, the first cross beam, the second cross beam and the third cross beam are parallel to each other, the first cross beam and the third cross beam are identical in structure, the triangular support beams are perpendicular to the first cross beam, the second cross beam and the third cross beam respectively, two ends of each triangular support beam are fixedly connected to the first cross beam and the third cross beam respectively, and the second cross beam penetrates through each triangular support beam and is fixedly connected with the triangular support beam; the first cross beam and the third cross beam are symmetrically provided with a plurality of groups of ceiling stand columns, stand column supporting seats are arranged at the top ends of the supporting stand columns, and the ceiling stand columns are detachably and fixedly connected with the stand column supporting seats.
2. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: the ceiling structure is characterized in that a heat-insulation tarpaulin rolling curtain is fixedly arranged on the lower edge of the ceiling structure, the heat-insulation tarpaulin rolling curtain is respectively arranged on the periphery of the ceiling structure and is tightly spliced, heat-insulation tarpaulin is stored in the heat-insulation tarpaulin rolling curtain, and the heat-insulation tarpaulin rolling curtain is adjacent to the heat-insulation tarpaulin after being opened and is fixedly connected with the heat-insulation tarpaulin through a hasp.
3. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 2, wherein: the length of the heat-preservation tarpaulin is larger than the height of the supporting upright post.
4. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: a plurality of lifting rings are uniformly distributed on the ceiling support, the lifting rings are fixedly arranged on the triangular supporting beam, and the lifting rings are located on the outer side of the rainproof heat-insulation board.
5. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: the triangular supporting beam is provided with a plurality of supporting rods in an upper rack mode, the supporting rods are parallel to the first cross beam, and the rainproof heat-insulation board positioned at the top of the ceiling structure is detachably and fixedly arranged on the supporting rods.
6. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: the ceiling supports are square pipe trusses.
7. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: the side of the ceiling upright post is provided with a fixed inserting plate, the fixed inserting plate is connected with the ceiling upright post in an integrated manner, a slot is formed in the upright post supporting seat, and the fixed inserting plate is inserted in the slot and is fixedly connected with the side wall of the slot through a bolt.
8. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: the top of the ceiling structure is provided with a rain leakage prevention baffle.
9. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: the supporting upright post is of a telescopic structure capable of being adjusted up and down.
10. The reusable dual-purpose shed for rain-proof and steam-curing in beam yard, as claimed in claim 1, wherein: the first beam, the second beam and the third beam are all of detachable structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921143491.XU CN211143800U (en) | 2019-07-20 | 2019-07-20 | Reusable rainproof steam-curing dual-purpose shed for beam yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921143491.XU CN211143800U (en) | 2019-07-20 | 2019-07-20 | Reusable rainproof steam-curing dual-purpose shed for beam yard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211143800U true CN211143800U (en) | 2020-07-31 |
Family
ID=71744462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921143491.XU Expired - Fee Related CN211143800U (en) | 2019-07-20 | 2019-07-20 | Reusable rainproof steam-curing dual-purpose shed for beam yard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211143800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012528A (en) * | 2020-08-24 | 2020-12-01 | 广船国际有限公司 | Rainproof tool |
| CN112176837A (en) * | 2020-09-27 | 2021-01-05 | 赵冬梅 | Protection device after building construction concrete placement |
-
2019
- 2019-07-20 CN CN201921143491.XU patent/CN211143800U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012528A (en) * | 2020-08-24 | 2020-12-01 | 广船国际有限公司 | Rainproof tool |
| CN112176837A (en) * | 2020-09-27 | 2021-01-05 | 赵冬梅 | Protection device after building construction concrete placement |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 |