CN211007241U - Steel construction building assembled floor fixed knot constructs - Google Patents
Steel construction building assembled floor fixed knot constructs Download PDFInfo
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- CN211007241U CN211007241U CN201920982257.XU CN201920982257U CN211007241U CN 211007241 U CN211007241 U CN 211007241U CN 201920982257 U CN201920982257 U CN 201920982257U CN 211007241 U CN211007241 U CN 211007241U
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Abstract
The utility model discloses a steel structure building fabricated floor fixing structure, which comprises two beams (1) arranged in parallel, wherein the beams (1) are I-shaped steel beams, a fabricated floor is arranged between the two beams (1), the fabricated floor comprises a plurality of prefabricated floors (2), the fabricated floor is spliced into a plate shape by the plurality of prefabricated floors (2), and a prefabricated plate fixing part is arranged between the side surfaces of the two adjacent prefabricated floors (2); the prefabricated slab fixing piece comprises a plurality of lower fixing plates (4), and the lower fixing plates (4) are arranged along the length extending direction of the joint of two adjacent prefabricated floor slabs (2); the lower fixing plate (4) is arranged at the lower part of the joint of the two adjacent prefabricated floor slabs (2), and the lower fixing plate (4) is attached to the lower surfaces of the side parts of the two adjacent prefabricated floor slabs (2). The utility model has the advantages of it can overcome prior art's drawback, and structural design is reasonable novel.
Description
Technical Field
The utility model relates to a steel construction building assembled floor fixed knot constructs belongs to the building field.
Background
The house building scale of China is huge, and the house building reaches 16 hundred million-20 hundred million square meters every year in recent years. Such huge building scale is unprecedented in the world; in our history, these decades are the high tide of building construction. Buildings assembled from prefabricated parts at the site are called fabricated buildings. Under the direction of national policy, the proportion of such prefabricated buildings is increasing, and a large number of building components, such as: the external wall panel, the internal wall panel, the composite floor slab, the balcony, the stairs and the like are transported to a construction site after workshop production and processing are completed, and then the assembly can be completed by on-site post-pouring, so that the building components are more standardized, the management is more informationalized, and the production efficiency is higher. In the existing fabricated floor, a template needs to be erected between two adjacent prefabricated plates during grouting and joint filling, the template needs to be supported by a stand column, the erection is inconvenient, and the joint of the existing fabricated floor is low in strength and easy to crack.
SUMMERY OF THE UTILITY MODEL
The technical scheme of the utility model to exist among the prior art: the fixing structure has the defects that in the existing fabricated floor, a template needs to be erected between two adjacent prefabricated plates when grouting and filling joints, the template needs to be supported by a stand column, the erection is inconvenient, the strength of the joint of the existing fabricated floor is low, and the prefabricated floor is easy to crack, and the fixing structure for the fabricated floor of the steel structure building is provided.
In order to solve the technical problem, the technical scheme adopted by the utility model is that the steel structure building fabricated floor fixing structure comprises two crossbeams which are arranged in parallel, wherein the crossbeams are I-shaped steel beams, a fabricated floor is arranged between the two crossbeams, the fabricated floor comprises a plurality of prefabricated floors, the fabricated floor is spliced into a plate shape by the plurality of prefabricated floors, and a prefabricated plate fixing piece is arranged between the side surfaces of the two adjacent prefabricated floors; the prefabricated slab fixing piece comprises a plurality of lower fixing plates, and the lower fixing plates are arranged along the length extending direction of the joint of two adjacent prefabricated floor slabs; the lower fixing plate is arranged at the lower part of the joint of the two adjacent prefabricated floor slabs and is attached to the lower surfaces of the side parts of the two adjacent prefabricated floor slabs; the end parts of the prefabricated floor slabs are lapped above the cross beams, the end parts of the lower fixing plates are fixedly welded with the cross beams, and a plurality of internal reinforcing steel bars are arranged in the joints of the two adjacent prefabricated floor slabs and are filled with polymer mortar.
According to the technical scheme, the lower fixing plates are arranged on the lower portions of the joints of the two adjacent prefabricated floor slabs, and when polymer mortar is poured into the joints of the two adjacent prefabricated floor slabs, the lower fixing plates serve as pouring bottom formworks of the polymer mortar. And after the polymer mortar is dried, the lower fixing plate can be used as a reinforcing plate for the joint of two adjacent prefabricated floor slabs without being detached, so that the strength of the joint of the two adjacent prefabricated floor slabs is improved. The internal reinforcing steel bars are used as internal frameworks at the joint of two adjacent prefabricated floor slabs. When the cross beam fixing device is installed, the end part of the lower fixing plate is fixedly welded with the cross beam, so that the cross beam is fixed between two adjacent cross beams.
Preferably, the prefabricated slab fixing piece further comprises a plurality of upper fixing plates, and the upper fixing plates are arranged along the length extending direction of the joint of two adjacent prefabricated slabs; the upper fixing plate is arranged at the upper part of the joint of the two adjacent prefabricated floor slabs and is attached to the upper surfaces of the side parts of the two adjacent prefabricated floor slabs; a pull rod is arranged between the upper fixing plate and the lower fixing plate.
In the technical scheme of this application, set up the upper portion fixed plate above the seam of two adjacent prefabricated floor slabs, it is fixed through the pull rod between upper portion fixed plate, the lower part fixed plate for upper portion fixed plate, lower part fixed plate can with two adjacent prefabricated floor slab surface laminating, prevent to take place to run when filling polymer mortar and starch. And the upper fixing plate and the lower fixing plate support the upper part and the lower part of the joint of the two adjacent prefabricated floor slabs, so that the strength of the joint of the two adjacent prefabricated floor slabs is improved. When later stage is decorated, can plaster on assembled floor upper surface and make level, the tip of upper portion fixed plate, pull rod can be buried in plastering the screed-coat like this, guarantees assembled floor surfacing.
Preferably, in the steel structure building fabricated floor fixing structure, a U-shaped bulge is arranged in the middle of the upper fixing plate, and the U-shaped bulge is arranged along the length extending direction of the upper fixing plate; two ends of the pull rod respectively penetrate through the U-shaped bulge and the lower fixing plate and are fixed through nuts; the end of the pull rod is provided with a right-angle bend.
In this application, the length extending direction along upper portion fixed plate has set up the U type arch, has improved the compressive strength of upper portion fixed plate, can prevent because of the too big upper portion fixed plate extrusion deformation of pulling force of pull rod. And in the use, the U-shaped protrusion can play a better supporting role, so that the upper fixing plate is prevented from bearing larger pressure, and the joint of two adjacent prefabricated floor slabs is prevented from cracking under pressure. In order to facilitate the pouring of the polymer mortar, a plurality of pouring holes can be formed in the upper fixing plate along the length extending direction of the upper fixing plate.
Optimized, above-mentioned steel construction building assembled floor fixed knot constructs, be provided with a plurality of upper portion fasteners that set up along upper portion fixed plate length extending direction interval on the fixed plate of upper portion, upper portion fastener laminating on the fixed plate of upper portion and with the fixed plate shape fit setting of upper portion, the tip of pull rod pass upper portion fastener and with upper portion fastener fixed connection.
In this application, bear the pulling force of pull rod through upper portion fastener, prevent that upper portion fixed plate from taking place to warp after the pulling. And after plastering and leveling on the fabricated floor, the upper fastener can form a supporting framework in the plastering and leveling layer, so that the plastering and leveling layer is prevented from excessively applying pressure to the upper fixing plate, and the supporting strength of the upper fixing plate is improved.
Optimized, above-mentioned steel construction building assembled floor fixed knot constructs, be provided with the lower part diaphragm that a plurality of intervals set up between two adjacent lower part fixed plates, the both ends of lower part diaphragm laminate in the lower part fixed plate, the tip of pull rod passes the tip of lower part diaphragm and fixed with the lower part diaphragm, the middle section laminate in the surface of prefabricated floor of lower part fixed plate.
In this application, connect two adjacent lower part fixed plates through the lower part diaphragm, the lower part diaphragm forms a horizontal support at the lower surface of prefabricated floor, and the lower part diaphragm forms supporting network with lower part fixed plate with great ease, supports for providing better lower part for prefabricated floor, improves the compressive strength of whole assembled floor.
Optimized, above-mentioned steel construction building assembled floor fixed knot constructs, the lateral part of precast floor is provided with the bar groove that sets up along precast floor length extending direction on the surface, and inside reinforcing bar is fixed with the pull rod ligature.
In this application, after polymer mortar pours into between the gap between the side surface of two adjacent prefabricated floor slabs, through the setting of bar groove for polymer mortar increases with the area of contact of prefabricated floor slab, has improved the joint strength of polymer mortar and prefabricated floor slab. When the internal reinforcing steel bars are installed, the internal reinforcing steel bars are bound and fixed with the pull rods so as to fix the positions of the internal reinforcing steel bars.
Preferably, the length of the prefabricated floor slab is greater than the distance between the two cross beams, the end parts of the two adjacent prefabricated floor slabs in the length extending direction of the prefabricated floor slab are lapped on the cross beams, and the end parts of the two adjacent prefabricated floor slabs in the length extending direction of the prefabricated floor slab are attached and are filled with the gaps through the polymer mortar.
When the prefabricated floor slab is laid, the two ends of the prefabricated floor slab are lapped on the upper surface of the cross beam, and the weight of the two ends of the prefabricated floor slab is borne by the cross beam, so that the cross beam can bear the pressure borne by most of the prefabricated floor slab, and the pressure bearing capacity of the fabricated floor slab is improved.
Optimally, the ends of two adjacent upper fixing plates in the length extending direction of the upper fixing plates are jointed, welded and fixed; the ends of two adjacent inner steel bars in the length extending direction of the inner steel bars are jointed, welded and fixed.
In this application, the tip welded connection of upper portion fixed plate, inside reinforcing bar for upper portion fixed plate, inside reinforcing bar form a atress wholly on its length extending direction, have improved the whole stress intensity and the wholeness of assembled floor.
Preferably, the crossbeam of the steel structure building fabricated floor fixing structure is provided with a plurality of fixing bolts, one ends of the fixing bolts penetrate through the crossbeam and are fixedly connected with the crossbeam, and the other ends of the fixing bolts penetrate through the upper fixing plate and are fixedly connected with the upper fixing plate.
In the technical scheme of this application, the upper portion fixed plate passes through fixing bolt and crossbeam fixed connection, has improved the joint strength of assembled floor and crossbeam to make the assembled floor connect for a atress whole, improved the fixed firmness of assembled floor.
The utility model has the advantages of it can overcome prior art's drawback, and structural design is reasonable novel. According to the technical scheme, the lower fixing plates are arranged on the lower portions of the joints of the two adjacent prefabricated floor slabs, and when polymer mortar is poured into the joints of the two adjacent prefabricated floor slabs, the lower fixing plates serve as pouring bottom formworks of the polymer mortar. And after the polymer mortar is dried, the upper fixing plate and the lower fixing plate can be used as reinforcing plates for the joint of two adjacent prefabricated floor slabs without being detached, so that the compressive strength of the joint of the two adjacent prefabricated floor slabs is improved. The internal reinforcing steel bars are used as internal frameworks at the joint of two adjacent prefabricated floor slabs. When the cross beam fixing device is installed, the end part of the lower fixing plate is fixedly welded with the cross beam, so that the cross beam is fixed between two adjacent cross beams.
Drawings
Fig. 1 is a schematic structural view of the fabricated floor of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is an enlarged view at C of FIG. 1;
fig. 5 is a schematic view of a connection structure of the fabricated floor slab and the cross beam of the present invention;
fig. 6 is a bottom view in a direction perpendicular to the prefabricated floor slab of fig. 5.
Detailed Description
The technical features of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
As shown in the figures, the utility model relates to a steel structure building fabricated floor fixing structure, which comprises two beams 1 arranged in parallel, wherein the beam 1 is an I-shaped steel beam, a fabricated floor is arranged between the two beams 1, the fabricated floor comprises a plurality of prefabricated floors 2, the fabricated floor is spliced into a plate shape by the plurality of prefabricated floors 2, and a prefabricated plate fixing part is arranged between the side surfaces of the two adjacent prefabricated floors 2; the prefabricated plate fixing piece comprises a plurality of lower fixing plates 4, and the lower fixing plates 4 are arranged along the length extending direction of the joint of two adjacent prefabricated floor slabs 2; the lower fixing plate 4 is arranged at the lower part of the joint of the two adjacent prefabricated floor slabs 2, and the lower fixing plate 4 is attached to the lower surfaces of the side parts of the two adjacent prefabricated floor slabs 2; the end parts of the prefabricated floor slabs 2 are lapped above the cross beams 1, the end parts of the lower fixing plates 4 are fixedly welded with the cross beams 1, and a plurality of internal steel bars 6 are arranged in the joints of the two adjacent prefabricated floor slabs 2 and filled with polymer mortar 71.
In the technical scheme of this application, set up lower part fixed plate 4 in the seam crossing lower part of two adjacent prefabricated floor slabs 2, when pouring polymer mortar 71 in to the seam crossing of two adjacent prefabricated floor slabs 2, lower part fixed plate 4 is as the bottom form of pouring of polymer mortar 71. And after the polymer mortar 71 is dried, the lower fixing plate 4 can be used as a reinforcing plate for the joint of two adjacent prefabricated floor slabs 2 without being detached, so that the strength of the joint of two adjacent prefabricated floor slabs 2 is improved. The internal reinforcement 6 serves as an internal framework at the joint of two adjacent prefabricated floor slabs 2. When mounting, the end of the lower fixing plate 4 is fixedly welded to the cross beam 1, so that the cross beam 1 is fixed between two adjacent cross beams 1.
The prefabricated slab fixing piece also comprises a plurality of upper fixing plates 3, and the upper fixing plates 3 are arranged along the length extending direction of the joint of two adjacent prefabricated floor slabs 2; the upper fixing plate 3 is arranged at the upper part of the joint of the two adjacent prefabricated floor slabs 2, and the upper fixing plate 3 is attached to the upper surfaces of the side parts of the two adjacent prefabricated floor slabs 2; a pull rod 5 is arranged between the upper fixing plate 3 and the lower fixing plate 4.
In the technical scheme of this application, set up upper portion fixed plate 3 above the seam of two adjacent prefabricated floor slabs 2, it is fixed through pull rod 5 between upper portion fixed plate 3, the lower part fixed plate 4 for upper portion fixed plate 3, lower part fixed plate 4 can with two adjacent prefabricated floor slab 2 surface laminating, prevent to take place to run thick liquid when pouring polymer mortar 71. And the upper fixing plate 3 and the lower fixing plate 4 support the upper part and the lower part of the joint of the two adjacent prefabricated floor slabs 2, so that the strength of the joint of the two adjacent prefabricated floor slabs 2 is improved. When later stage is decorated, can plaster on assembled floor upper surface and make level, the tip of upper portion fixed plate 3, pull rod 5 can be buried in plastering the leveling layer like this, guarantees assembled floor surfacing.
A U-shaped bulge 31 is arranged in the middle of the upper fixing plate 3, and the U-shaped bulge 31 is arranged along the length extending direction of the upper fixing plate 3; two ends of the pull rod 5 respectively penetrate through the U-shaped bulge 31 and the lower fixing plate 4 and are fixed through nuts; the end of the pull rod 5 is provided with a right-angle bend.
In this application, set up the protruding 31 of U type along the length extending direction of upper portion fixed plate 3, improved upper portion fixed plate 3's compressive strength, can prevent to be too big with upper portion fixed plate 3 extrusion deformation because of pull rod 5's pulling force. And in the use, U type arch 31 can play better supporting role, prevents that upper portion fixed plate 3 from receiving great pressure, prevents that the seam crossing of two adjacent prefabricated floor 2 from receiving the pressure fracture. In order to facilitate the pouring of the polymer mortar, a plurality of pouring holes may be formed in the upper fixing plate 3 along the length extending direction of the upper fixing plate 3.
The upper fixing plate 3 is provided with a plurality of upper fasteners 7 arranged at intervals along the length extension direction of the upper fixing plate 3, the upper fasteners 7 are attached to the upper fixing plate 3 and are matched with the upper fixing plate 3 in shape, and the end part of the pull rod 5 penetrates through the upper fasteners 7 and is fixedly connected with the upper fasteners 7.
In this application, the upper fastening 7 is used to bear the pulling force of the pull rod 5, so as to prevent the upper fixing plate 3 from deforming after being pulled. And after plastering and making level on the fabricated floor, the upper fastener 7 can form a supporting framework in the leveling course of plastering, prevent that the leveling course of plastering from excessively exerting pressure to the upper fixing plate 3, improved the support intensity of the upper fixing plate 3.
In this application, connect two adjacent lower part fixed plates 4 through lower part diaphragm 8, lower part diaphragm 8 forms a horizontal support at prefabricated floor 2's lower surface, and lower part diaphragm 8 forms the support network of moving about freely and quickly with lower part fixed plate 4, for prefabricated floor 2 provides better lower part support, improves the compressive strength of whole assembled floor.
The lateral surface of the prefabricated floor slab 2 is provided with a strip-shaped groove 21 arranged along the length extending direction of the prefabricated floor slab 2, and the internal steel bars 6 are bound and fixed with the pull rod 5.
In this application, after polymer mortar pours into between the gap between the side surface of two adjacent prefabricated floor 2, through the setting of bar groove 21 for polymer mortar and prefabricated floor 2's area of contact increases, has improved polymer mortar and prefabricated floor 2's joint strength. The internal reinforcing bars 6 are fixed by binding with the tie bars 5 at the time of installation to fix the positions of the internal reinforcing bars 6.
The length of the precast floor slabs 2 is larger than the distance between the two cross beams 1, the end parts of the two precast floor slabs 2 adjacent to each other in the length extending direction of the precast floor slabs 2 are lapped on the cross beams 1, and the end parts of the two precast floor slabs 2 adjacent to each other in the length extending direction of the precast floor slabs 2 are jointed and are filled with gaps through polymer mortar.
When the prefabricated floor slab is laid, the two ends of the prefabricated floor slab 2 are lapped on the upper surface of the cross beam 1, and the weight of the two ends of the prefabricated floor slab 2 is borne by the cross beam 1, so that the cross beam 1 can bear the pressure borne by most of the prefabricated floor slab 2, and the pressure bearing capacity of the fabricated floor slab is improved.
The end parts of two adjacent upper fixing plates 3 in the length extension direction of the upper fixing plates 3 are jointed, welded and fixed; the ends of two adjacent inner reinforcing bars 6 in the length extending direction of the inner reinforcing bars 6 are jointed, welded and fixed.
In this application, the tip welded connection of upper portion fixed plate 3, inside reinforcing bar 6 for upper portion fixed plate 3, inside reinforcing bar 6 form a atress wholly on its length extending direction, have improved the whole stress intensity and the wholeness of assembled floor.
A plurality of fixing bolts 10 are arranged on the cross beam 1, one ends of the fixing bolts 10 penetrate through the cross beam 1 and are fixedly connected with the cross beam 1, and the other ends of the fixing bolts 10 penetrate through the upper fixing plate 3 and are fixedly connected with the upper fixing plate 3.
In the technical scheme of this application, upper portion fixed plate 3 has improved the joint strength of assembled floor and crossbeam 1 through fixing bolt 10 and crossbeam 1 fixed connection to make the assembled floor connect for a atress whole, improved the fixed firmness of assembled floor.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should also understand that the changes, modifications, additions or substitutions made within the scope of the present invention should belong to the protection scope of the present invention.
Claims (9)
1. The utility model provides a steel construction building assembled floor fixed knot constructs which characterized in that: the prefabricated floor slab comprises two beams (1) which are arranged in parallel, wherein the beams (1) are I-shaped steel beams, a prefabricated floor slab is arranged between the two beams (1) and comprises a plurality of prefabricated floor slabs (2), the prefabricated floor slabs are spliced into a plate shape by the prefabricated floor slabs (2), and a prefabricated slab fixing piece is arranged between the side surfaces of the two adjacent prefabricated floor slabs (2); the prefabricated slab fixing piece comprises a plurality of lower fixing plates (4), and the lower fixing plates (4) are arranged along the length extending direction of the joint of two adjacent prefabricated floor slabs (2); the lower fixing plate (4) is arranged at the lower part of the joint of the two adjacent prefabricated floor slabs (2), and the lower fixing plate (4) is attached to the lower surfaces of the side parts of the two adjacent prefabricated floor slabs (2); the end parts of the prefabricated floor slabs (2) are lapped above the cross beams (1), the end parts of the lower fixing plates (4) are fixedly welded with the cross beams (1), and a plurality of internal steel bars (6) are arranged in the joints of two adjacent prefabricated floor slabs (2) and are filled with polymer mortar (71).
2. The fabricated floor fixing structure of a steel structure building according to claim 1, wherein: the prefabricated slab fixing piece also comprises a plurality of upper fixing plates (3), and the upper fixing plates (3) are arranged along the length extending direction of the joint of two adjacent prefabricated floor slabs (2); the upper fixing plate (3) is arranged at the upper part of the joint of the two adjacent prefabricated floor slabs (2), and the upper fixing plate (3) is attached to the upper surfaces of the side parts of the two adjacent prefabricated floor slabs (2); a pull rod (5) is arranged between the upper fixing plate (3) and the lower fixing plate (4).
3. The fabricated floor fixing structure of a steel structure building according to claim 2, wherein: the middle part of the upper fixing plate (3) is provided with a U-shaped bulge (31), and the U-shaped bulge (31) is arranged along the length extending direction of the upper fixing plate (3); two ends of the pull rod (5) respectively penetrate through the U-shaped bulge (31) and the lower fixing plate (4) and are fixed through nuts; the end part of the pull rod (5) is provided with a right-angle bend.
4. The fabricated floor fixing structure of a steel structure building according to claim 2, wherein: the upper portion fixed plate (3) is provided with a plurality of upper portion fasteners (7) that set up along upper portion fixed plate (3) length extending direction interval, and upper portion fastener (7) laminate on upper portion fixed plate (3) and set up with upper portion fixed plate (3) shape fit, and the tip of pull rod (5) passes upper portion fastener (7) and with upper portion fastener (7) fixed connection.
5. The fabricated floor fixing structure of a steel structure building according to claim 2, wherein: lower portion diaphragm (8) that a plurality of intervals set up are provided with between two adjacent lower part fixed plates (4), and the both ends laminating of lower portion diaphragm (8) is in lower part fixed plate (4), and the tip of pull rod (5) passes the tip of lower part diaphragm (8) and is fixed with lower part diaphragm (8), and the middle section laminating of lower part fixed plate (4) is in the surface of prefabricated floor (2).
6. The fabricated floor fixing structure of a steel structure building according to claim 2, wherein: the side surface of the prefabricated floor slab (2) is provided with a strip-shaped groove (21) arranged along the length extension direction of the prefabricated floor slab (2), and the internal steel bars (6) are bound and fixed with the pull rods (5).
7. The fabricated floor fixing structure of a steel structure building according to claim 2, wherein: the length of the precast floor slabs (2) is larger than the distance between the two cross beams (1), the end parts of two adjacent precast floor slabs (2) in the length extending direction of the precast floor slabs (2) are lapped on the cross beams (1), and the end parts of the two adjacent precast floor slabs (2) in the length extending direction of the precast floor slabs (2) are jointed and are filled with gaps through polymer mortar.
8. The fabricated floor fixing structure of a steel structure building according to claim 2, wherein: the end parts of two adjacent upper fixing plates (3) in the length extension direction of the upper fixing plates (3) are jointed, welded and fixed; the ends of two adjacent internal reinforcing steel bars (6) in the length extending direction of the internal reinforcing steel bars (6) are jointed, welded and fixed.
9. The fabricated floor fixing structure of a steel structure building according to claim 2, wherein: a plurality of fixing bolts (10) are arranged on the cross beam (1), one ends of the fixing bolts (10) penetrate through the cross beam (1) and are fixedly connected with the cross beam (1), and the other ends of the fixing bolts (10) penetrate through the upper fixing plate (3) and are fixedly connected with the upper fixing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982257.XU CN211007241U (en) | 2019-06-26 | 2019-06-26 | Steel construction building assembled floor fixed knot constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982257.XU CN211007241U (en) | 2019-06-26 | 2019-06-26 | Steel construction building assembled floor fixed knot constructs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211007241U true CN211007241U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920982257.XU Active CN211007241U (en) | 2019-06-26 | 2019-06-26 | Steel construction building assembled floor fixed knot constructs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211007241U (en) |
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2019
- 2019-06-26 CN CN201920982257.XU patent/CN211007241U/en active Active
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