CN209799151U - Steel construction of prefabricated wallboard of assembled - Google Patents
Steel construction of prefabricated wallboard of assembled Download PDFInfo
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- CN209799151U CN209799151U CN201920532270.5U CN201920532270U CN209799151U CN 209799151 U CN209799151 U CN 209799151U CN 201920532270 U CN201920532270 U CN 201920532270U CN 209799151 U CN209799151 U CN 209799151U
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Abstract
the utility model belongs to the technical field of the steel construction technique and specifically relates to a steel construction of prefabricated wallboard of assembled. The steel structure of the prefabricated wallboard of this kind of assembled, including the prefabricated plate of polylith, prefabricated plate all includes the rectangle steel sheet, set up in the first rectangle lug of rectangle steel sheet right flank, set up in the second rectangle lug of rectangle steel sheet downside, set up in the first rectangle recess of rectangle steel sheet left surface, set up in the second rectangle recess of side on the rectangle steel sheet and set up in the rectangle open slot of rectangle steel sheet leading flank four corners department. The utility model discloses a steel construction of prefabricated wallboard of assembled, the design is simple, simple to operate, and it is strong to connect the fastening nature between the prefabricated plate, is particularly suitable for the preparation of the intermediate wall plate part of assembled steel construction building wall.
Description
Technical Field
The utility model belongs to the technical field of the steel construction technique and specifically relates to a steel construction of prefabricated wallboard of assembled.
Background
Steel structures are structures composed of steel materials and are one of the main building structure types. The structure mainly comprises beam steel, steel columns, steel trusses and other members made of section steel, steel plates and the like, and rust removing and preventing processes such as silanization, pure manganese phosphating, washing drying, galvanization and the like are adopted. The components or parts are typically joined by welds, bolts or rivets. Because of its light dead weight, and construction is simple and convenient, widely apply to fields such as large-scale factory building, venue, superelevation layer. The assembled steel structure building is a building mode advocated by the state at present. Prefabricated wallboard is comparatively important article part among the assembled steel construction building, and the steel construction of the prefabricated wallboard of current assembled mainly exists as follows not enoughly: (1) the structure is complex, the installation is inconvenient, and the construction process is influenced; (2) the connection fastening nature is not good between each component part of prefabricated wallboard, influences the whole security of prefabricated wallboard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel construction of prefabricated wallboard of assembled overcomes among the aforementioned prior art that the steel construction of prefabricated wallboard of assembled is comparatively complicated, the installation is inconvenient, influence the construction process, connect fastening nature and remain to be improved etc. not enough.
The utility model provides a technical scheme that its technical problem adopted is:
A steel structure of an assembled prefabricated wall panel comprises a plurality of prefabricated plate pieces, wherein each prefabricated plate piece comprises a rectangular steel plate, a first rectangular convex block arranged on the right side surface of the rectangular steel plate, a second rectangular convex block arranged on the lower side surface of the rectangular steel plate, a first rectangular groove arranged on the left side surface of the rectangular steel plate, a second rectangular groove arranged on the upper side surface of the rectangular steel plate and rectangular open grooves arranged at four corners of the front side surface of the rectangular steel plate; the first rectangular bump is matched with the first rectangular groove in size, and the second rectangular bump is matched with the second rectangular groove in size; the first rectangular protruding block of the prefabricated plate on the left side is inserted into the first rectangular groove of the prefabricated plate on the right side and locked through the double T-shaped locking mechanism, the second rectangular protruding block of the prefabricated plate on the upper side is inserted into the second rectangular groove of the prefabricated plate on the lower side and locked through the double T-shaped locking mechanism, and the contact ends of four adjacent prefabricated plates are locked through the four-corner locking mechanism.
Further, the double T-shaped locking mechanism comprises a first T-shaped end and a second T-shaped end; the first T-shaped end comprises a first circular plate and a first circular cylinder, the diameter of the first circular plate is larger than that of the first circular cylinder, a first internal thread is arranged on the inner wall of the first circular cylinder, and a first external thread is arranged on the outer wall of the first circular cylinder; the second T-shaped end comprises a second circular plate and a second circular column, the diameter of the second circular plate is larger than that of the second circular column, and a second external thread matched with the first internal thread of the first circular cylinder is arranged on the outer wall of the second circular column; the second T-shaped end and the first T-shaped end are fixed in a screwing mode through matching of the first internal thread and the second external thread.
furthermore, a group of first through holes are symmetrically formed in the front surfaces of the first rectangular groove and the second rectangular groove, each first through hole comprises a first cylindrical hole and a second cylindrical hole, the size of each first cylindrical hole is matched with the size of the first circular plate of the first T-shaped end, the inner diameter of each second cylindrical hole is matched with the outer diameter of the first cylindrical barrel of the first T-shaped end, and second inner threads matched with first outer threads of the outer wall of the first cylindrical barrel are formed in the inner wall of each second cylindrical hole.
Further, the rear surface of first rectangle recess and second rectangle recess all is provided with a set of second through-hole symmetrically, and the second through-hole includes third cylinder hole and fourth cylinder hole, and the size in third cylinder hole matches with the size of the second circular plate of second "T" type end, and the internal diameter in fourth cylinder hole matches with the external diameter of the second circular post of second "T" type end, and the inner wall in fourth cylinder hole is provided with the third internal thread with the second external thread matched with of the circular post outer wall of second.
Furthermore, a group of third through holes are symmetrically formed in the first rectangular protruding block and the second rectangular protruding block, each third through hole comprises a fifth cylindrical hole and a sixth cylindrical hole, the inner diameter of each fifth cylindrical hole is matched with the outer diameter of the first cylindrical barrel at the first T-shaped end, a fourth internal thread matched with the first external thread of the outer wall of the first cylindrical barrel is arranged on the inner wall of each fifth cylindrical hole, the inner diameter of each sixth cylindrical hole is matched with the outer diameter of the second circular column at the second T-shaped end, and a fifth internal thread matched with the second external thread of the outer wall of the second circular column is arranged on the inner wall of each sixth cylindrical hole.
further, four corners locking mechanism includes the rectangular plate body, the symmetry sets up in the circular section of thick bamboo of second of rectangular plate body lower surface and sets up in the circular section of thick bamboo of third "T" type end, the inner wall of the circular section of thick bamboo of second is provided with the sixth internal thread, third T "type end includes third circular plate and third circular column, and the outer wall of third circular column is provided with the third external screw thread with sixth internal thread matched with, and each third" T "type end is twisted in the circular section of thick bamboo of second through the cooperation of third external screw thread with the sixth internal thread.
Furthermore, the size of the rectangular plate body is the same as the size of a rectangle formed by rectangular open grooves of the contact ends of four adjacent prefabricated plate parts.
Further, the lower surface of rectangle open slot all is provided with "worker" style of calligraphy through-hole, "worker" style of calligraphy through-hole includes seventh circular port, eighth circular port and ninth circular port, and the internal diameter of seventh circular port cooperatees with the external diameter of the circular section of thick bamboo of second, and the internal diameter of eighth circular port cooperatees with the external diameter of third circular column, and the inner wall of eighth circular port be provided with third external screw thread matched with seventh internal thread, the size of ninth circular port cooperatees with the size of the circular plate of third.
Furthermore, the first circular plate, the second circular plate and the third circular plate are all provided with cross-shaped grooves.
The utility model has the advantages that: compared with the prior art, the utility model discloses an assembled prefabricated wallboard's steel construction design is simple, simple to operate, and it is strong to connect the fastening nature between the prefabricated plate, inserts the first rectangle lug that is located left prefabricated plate in the first rectangle recess of the prefabricated plate that is located the right side and locks through two "T" type locking mechanism, inserts the second rectangle lug that is located the prefabricated plate of upside in the second rectangle recess of the prefabricated plate that is located the downside and locks through two "T" type locking mechanism, and the contact jaw of four adjacent prefabricated plate locks through four corners locking mechanism; the first through hole, the second through hole and the third through hole which are matched with the structure of the double T-shaped locking mechanism are designed, so that the double T-shaped locking mechanism can stably lock two adjacent prefabricated plates, the prefabricated plates are not exposed out of the rectangular steel plate, and the flatness of the finally formed prefabricated wallboard is ensured; rectangular open slots and I-shaped through holes matched with the four-corner locking mechanisms are designed, so that the rectangular steel plate is not exposed while the four-corner locking mechanisms tightly lock the adjacent four prefabricated plates, and the flatness of the finally formed prefabricated wallboard is ensured; the method is very suitable for manufacturing the middle wallboard part of the assembled steel structure building wall.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of another angle overall structure of the present invention;
FIG. 3 is an enlarged view of the double "T" type locking mechanism of the present invention;
FIG. 4 is an enlarged view of the structure of the four-corner locking mechanism of the present invention;
FIG. 5 is an enlarged view showing the structure of the first and second through holes of the present invention;
FIG. 6 is an enlarged view of the third through hole structure of the present invention;
FIG. 7 is an enlarged view of the structure of the I-shaped through hole of the present invention;
Wherein, 1 rectangular steel plate, 2 first rectangular convex block, 3 second rectangular convex block, 4 first rectangular groove, 5 second rectangular groove, 6 rectangular open slot, 7 double T-shaped locking mechanism, 8 four-corner locking mechanism, 9 first T-shaped end, 901 first circular plate, 902 first circular cylinder, 903 first internal thread, 904 first external thread, 10 second T-shaped end, 1001 second circular plate, 1002 second circular column, 1003 second external thread, 11 cross-shaped slot, 12 first through hole, 1201 first circular cylinder hole, 1202 second circular cylinder hole, 1203 third internal thread, 13 second through hole, 1301 third circular cylinder hole, 1302 fourth circular cylinder hole, third internal thread, 14 third through hole, 1401 fifth circular cylinder hole, 1402 sixth circular cylinder hole, 1403 fourth internal thread, 1404 fifth internal thread, 15 rectangular plate, 16 second circular cylinder, 1601 sixth internal thread, 17 third T-shaped end, 1701 a third circular plate, 1702 a third circular column, 1703 a third external thread, 18 "i" shaped through holes, 1801 a seventh circular hole, 1802 an eighth circular hole, 1803 a ninth circular hole, 1804 a seventh internal thread.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the embodiment shown in fig. 1-7, a steel structure of an assembled prefabricated wall panel comprises a plurality of prefabricated plate members, wherein each prefabricated plate member comprises a rectangular steel plate 1, a first rectangular convex block 2 arranged on the right side surface of the rectangular steel plate 1, a second rectangular convex block 3 arranged on the lower side surface of the rectangular steel plate 1, a first rectangular groove 4 arranged on the left side surface of the rectangular steel plate 1, a second rectangular groove 5 arranged on the upper side surface of the rectangular steel plate 1, and rectangular open grooves 6 arranged at four corners of the front side surface of the rectangular steel plate 1; the first rectangular bump 2 is matched with the first rectangular groove 4 in size, and the second rectangular bump 3 is matched with the second rectangular groove 6 in size; the first rectangular convex block 2 of the prefabricated plate on the left side is inserted into the first rectangular groove 4 of the prefabricated plate on the right side and locked by the double T-shaped locking mechanism 7, the second rectangular convex block 3 of the prefabricated plate on the upper side is inserted into the second rectangular groove 6 of the prefabricated plate on the lower side and locked by the double T-shaped locking mechanism 7, and the contact ends of four adjacent prefabricated plate are locked by the four-corner locking mechanism 8.
In this embodiment, the double "T" shaped locking mechanism 7 comprises a first "T" shaped end 9 and a second "T" shaped end 10; the first T-shaped end 9 comprises a first circular plate 901 and a first circular cylinder 902, the diameter of the first circular plate 901 is larger than that of the first circular cylinder 902, the inner wall of the first circular cylinder 902 is provided with a first internal thread 903, and the outer wall of the first circular cylinder 902 is provided with a first external thread 904; the second "T" shaped end 10 comprises a second circular plate 1001 and a second circular column 1002, the diameter of the second circular plate 1001 is larger than that of the second circular column 1002, and the outer wall of the second circular column 1002 is provided with a second external thread 1003 which is matched with the first internal thread 903 of the first circular cylinder 902; the second T-shaped end 10 is screwed and fixed with the first T-shaped end 9 through the matching of the first internal thread 903 and the second external thread 1003.
In this embodiment, a set of first through holes 12 are symmetrically disposed on the front surfaces of the first rectangular groove 4 and the second rectangular groove 5, the first through holes 12 include a first cylindrical hole 1201 and a second cylindrical hole 1202, the size of the first cylindrical hole 1201 matches with the size of the first circular plate 901 of the first "T" shaped end 9, the inner diameter of the second cylindrical hole 1202 matches with the outer diameter of the first cylindrical barrel 902 of the first "T" shaped end 9, and the inner wall of the second cylindrical hole 1202 is provided with a second internal thread 1203 matching with the first external thread 904 on the outer wall of the first cylindrical barrel 902.
In this embodiment, a set of second through holes 13 is symmetrically disposed on the rear surfaces of the first rectangular groove 4 and the second rectangular groove 5, the second through holes 13 include a third cylindrical hole 1301 and a fourth cylindrical hole 1302, the size of the third cylindrical hole 1301 matches with the size of the second circular plate 1001 of the second "T" shaped end 10, the inner diameter of the fourth cylindrical hole 1302 matches with the outer diameter of the second circular column 1002 of the second "T" shaped end 10, and the inner wall of the fourth cylindrical hole 1302 is provided with a third internal thread 1303 matching with the second external thread 1003 on the outer wall of the second circular column 1002.
in this embodiment, a set of third through holes 14 is symmetrically disposed on each of the first rectangular protrusion 2 and the second rectangular protrusion 3, each of the third through holes 14 includes a fifth cylindrical hole 1401 and a sixth cylindrical hole 1402, an inner diameter of the fifth cylindrical hole 1401 matches with an outer diameter of the first cylindrical barrel 902 of the first "T" shaped end 9, an inner wall of the fifth cylindrical hole 1401 is provided with a fourth internal thread 1403 matching with the first external thread 904 on the outer wall of the first cylindrical barrel 902, an inner diameter of the sixth cylindrical hole 1402 matches with an outer diameter of the second cylindrical barrel 1002 of the second "T" shaped end 10, and an inner wall of the sixth cylindrical hole 1402 is provided with a fifth internal thread 1404 matching with the second external thread 1003 on the outer wall of the second cylindrical barrel 1002.
in this embodiment, the four-corner locking mechanism 8 includes a rectangular plate 15, a second circular cylinder 16 symmetrically disposed on the lower surface of the rectangular plate 15, and third "T" shaped ends 17 disposed in the second circular cylinder 16, the inner wall of the second circular cylinder 16 is provided with a sixth internal thread 1601, the third T "shaped ends 17 include a third circular plate 1701 and a third circular column 1702, the outer wall of the third circular column 1702 is provided with a third external thread 1703 matched with the sixth internal thread 1601, and each third" T "shaped end 17 is screwed into the second circular cylinder 16 through the matching of the third external thread 1703 and the sixth internal thread 1601.
In this embodiment, the size of the rectangular plate body 15 is the same as the size of the rectangle formed by the rectangular open slots 6 of the contact ends of the four adjacent prefabricated plate parts.
In this embodiment, the lower surfaces of the rectangular opening slots 6 are provided with through holes 18 shaped like the Chinese character 'gong', the through holes 18 comprise seventh circular holes 1801, eighth circular holes 1802 and ninth circular holes 1803, the inner diameters of the seventh circular holes 1801 are matched with the outer diameter of the second circular cylinder 16, the inner diameters of the eighth circular holes 1802 are matched with the outer diameter of the third circular columns 1702, the inner walls of the eighth circular holes 1802 are provided with seventh internal threads 1804 matched with the third external threads 1703, and the sizes of the ninth circular holes 1803 are matched with the sizes of the third circular plates 1701.
In this embodiment, the first circular plate 901, the second circular plate 1001, and the third circular plate 1701 are each provided with a cross-shaped groove 11.
The working principle is as follows: the utility model discloses a steel construction of assembled prefabricated wallboard, during the installation, insert the first rectangle lug 2 that is located left prefabricated plate in the first rectangle recess 4 that is located right prefabricated plate and lock through two "T" type locking mechanism 7, insert the second rectangle lug 3 that is located the prefabricated plate of upside in the second rectangle recess 5 that is located the prefabricated plate of downside and lock through two "T" type locking mechanism 7, the contact jaw of four adjacent prefabricated plate locks through four corners locking mechanism 8; when the double T-shaped locking mechanism is installed, the first circular cylinder 902 of the first T-shaped end 9 is screwed into the first cylindrical hole 1201 of the first through hole 12 and the fifth cylindrical hole 1401 of the third through hole 14, and then the second circular column 1002 of the second T-shaped end 10 is screwed into the first circular cylinder 902 of the first T-shaped end 9; when the four-corner locking mechanism is installed, the rectangular plate body 15 is firstly placed into a rectangle formed by rectangular open grooves 6 of contact ends of four adjacent prefabricated plate parts, at the moment, the second circular cylinder 16 is just inserted into the seventh circular hole 1801 of the I-shaped through hole 18, and then the third circular column 1702 of the third T-shaped end 17 is screwed into the inner cavity of the second circular cylinder 16, so that the installation can be completed; the steel construction design of the prefabricated wallboard of assembled that this embodiment provided is simple, simple to operate, and the connection fastening nature is strong between the prefabricated plate, is particularly suitable for the preparation of the intermediate wall plate part of assembled steel construction building wall.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a steel construction of prefabricated wallboard of assembled which characterized in that: the prefabricated plate comprises a plurality of prefabricated plates, wherein each prefabricated plate comprises a rectangular steel plate, a first rectangular convex block arranged on the right side surface of the rectangular steel plate, a second rectangular convex block arranged on the lower side surface of the rectangular steel plate, a first rectangular groove arranged on the left side surface of the rectangular steel plate, a second rectangular groove arranged on the upper side surface of the rectangular steel plate and rectangular open grooves arranged at four corners of the front side surface of the rectangular steel plate; the first rectangular bump is matched with the first rectangular groove in size, and the second rectangular bump is matched with the second rectangular groove in size; the first rectangular protruding block of the prefabricated plate on the left side is inserted into the first rectangular groove of the prefabricated plate on the right side and locked through the double T-shaped locking mechanism, the second rectangular protruding block of the prefabricated plate on the upper side is inserted into the second rectangular groove of the prefabricated plate on the lower side and locked through the double T-shaped locking mechanism, and the contact ends of four adjacent prefabricated plates are locked through the four-corner locking mechanism.
2. The steel structure of prefabricated wall panel of an assembled type according to claim 1, wherein: the double T-shaped locking mechanism comprises a first T-shaped end and a second T-shaped end; the first T-shaped end comprises a first circular plate and a first circular cylinder, the diameter of the first circular plate is larger than that of the first circular cylinder, a first internal thread is arranged on the inner wall of the first circular cylinder, and a first external thread is arranged on the outer wall of the first circular cylinder; the second T-shaped end comprises a second circular plate and a second circular column, the diameter of the second circular plate is larger than that of the second circular column, and a second external thread matched with the first internal thread of the first circular cylinder is arranged on the outer wall of the second circular column; the second T-shaped end and the first T-shaped end are fixed in a screwing mode through matching of the first internal thread and the second external thread.
3. the steel structure of prefabricated wall panel of an assembled type according to claim 2, wherein: the front surfaces of the first rectangular groove and the second rectangular groove are symmetrically provided with a group of first through holes, each first through hole comprises a first cylindrical hole and a second cylindrical hole, the size of each first cylindrical hole is matched with the size of a first circular plate of the first T-shaped end, the inner diameter of each second cylindrical hole is matched with the outer diameter of a first cylindrical barrel of the first T-shaped end, and the inner wall of each second cylindrical hole is provided with a second internal thread matched with the first external thread of the outer wall of the first cylindrical barrel.
4. the steel structure of prefabricated wall panel of an assembled type according to claim 3, wherein: the rear surface of first rectangle recess and second rectangle recess all the symmetry be provided with a set of second through-hole, and the second through-hole includes third cylinder hole and fourth cylinder hole, and the size in third cylinder hole matches with the size of the second circular plate of second "T" type end, and the internal diameter in fourth cylinder hole matches with the external diameter of the second circular post of second "T" type end, and the inner wall in fourth cylinder hole is provided with the third internal thread with the second external thread matched with of the circular post outer wall of second.
5. The steel structure of prefabricated wall panel of an assembled type according to claim 4, wherein: a group of third through holes are symmetrically formed in the first rectangular protruding block and the second rectangular protruding block, each third through hole comprises a fifth cylindrical hole and a sixth cylindrical hole, the inner diameter of each fifth cylindrical hole is matched with the outer diameter of the first cylindrical barrel of the first T-shaped end, a fourth internal thread matched with the first external thread of the outer wall of the first cylindrical barrel is arranged on the inner wall of each fifth cylindrical hole, the inner diameter of each sixth cylindrical hole is matched with the outer diameter of the second circular column of the second T-shaped end, and a fifth internal thread matched with the second external thread of the outer wall of the second circular column is arranged on the inner wall of each sixth cylindrical hole.
6. The steel structure of prefabricated wall panel of an assembled type according to claim 5, wherein: the four corners locking mechanism includes that rectangular plate body, symmetry set up in the circular section of thick bamboo of second of rectangular plate body lower surface and set up third "T" type end in the circular section of thick bamboo of second, the inner wall of the circular section of thick bamboo of second is provided with the sixth internal thread, third T "type end includes third circular plate and third circular column, and the outer wall of third circular column is provided with the third external screw thread with sixth internal thread matched with, and each third" T "type end is twisted soon in the circular section of thick bamboo of second through the cooperation of third external screw thread with the sixth internal thread.
7. The steel structure of prefabricated wall panel of an assembled type according to claim 6, wherein: the size of the rectangular plate body is the same as that of a rectangle formed by rectangular open grooves of the contact ends of four adjacent prefabricated plate parts.
8. The steel structure of prefabricated wall panel of an assembled type according to claim 7, wherein: the lower surface of rectangle open slot all is provided with "worker" style of calligraphy through-hole, "worker" style of calligraphy through-hole includes seventh circular port, eighth circular port and ninth circular port, and the internal diameter of seventh circular port cooperatees with the external diameter of the circular section of thick bamboo of second, and the internal diameter of eighth circular port cooperatees with the external diameter of third circular column, and the inner wall of eighth circular port is provided with the seventh internal thread with third external screw thread matched with, and the size of ninth circular port cooperatees with the size of the circular plate of third.
9. The steel structure of an assembled prefabricated wall panel according to claim 8, wherein: the first circular plate, the second circular plate and the third circular plate are all provided with cross-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920532270.5U CN209799151U (en) | 2019-04-18 | 2019-04-18 | Steel construction of prefabricated wallboard of assembled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920532270.5U CN209799151U (en) | 2019-04-18 | 2019-04-18 | Steel construction of prefabricated wallboard of assembled |
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| CN209799151U true CN209799151U (en) | 2019-12-17 |
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| CN201920532270.5U Active CN209799151U (en) | 2019-04-18 | 2019-04-18 | Steel construction of prefabricated wallboard of assembled |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942671A (en) * | 2021-01-30 | 2021-06-11 | 北京城建七建设工程有限公司 | Assembled component and connection structure thereof |
| CN113235791A (en) * | 2021-03-31 | 2021-08-10 | 盐城工学院 | Assembled floor that can splice |
-
2019
- 2019-04-18 CN CN201920532270.5U patent/CN209799151U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942671A (en) * | 2021-01-30 | 2021-06-11 | 北京城建七建设工程有限公司 | Assembled component and connection structure thereof |
| CN112942671B (en) * | 2021-01-30 | 2022-03-15 | 北京城建七建设工程有限公司 | Assembled component and connection structure thereof |
| CN113235791A (en) * | 2021-03-31 | 2021-08-10 | 盐城工学院 | Assembled floor that can splice |
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