CN114991304B - Damping type steel structure node structure - Google Patents
Damping type steel structure node structure Download PDFInfo
- Publication number
- CN114991304B CN114991304B CN202210845836.6A CN202210845836A CN114991304B CN 114991304 B CN114991304 B CN 114991304B CN 202210845836 A CN202210845836 A CN 202210845836A CN 114991304 B CN114991304 B CN 114991304B
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- CN
- China
- Prior art keywords
- plate
- bolt
- fixed
- sleeve
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 238000013016 damping Methods 0.000 title abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 15
- 230000035939 shock Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2421—Socket type connectors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Springs (AREA)
Abstract
The invention discloses a damping steel structure node structure, which comprises a fixed plate and a steel plate, wherein a splicing assembly and a driven cushioning assembly are arranged on the right side of the fixed plate, the splicing assembly comprises a fixed rod, a sleeve plate, a fastener and a clamping piece, the fastener comprises a bolt, the bolt penetrates through the sleeve plate and is in threaded connection with the sleeve plate, one end of the bolt, which is far away from the sleeve plate, is penetrated by a pull rod and is in sliding connection with the pull rod, a spring A is fixed on the inner wall of the bolt, one end of the spring A, which is far away from the bolt, is fixed with the pull rod, and one end of the pull rod, which is far away from the bolt, is fixed with the pull plate. Through the splice assembly that sets up, screw threaded hole on the steel sheet is screwed into to the control bolt and fix the back to the steel sheet, and the arm-tie can support the control limiting plate and clip the bolt on the clamp plate for the bolt can not continue to rotate, and then avoids when the steel sheet receives vibrations, and the bolt takes place vibrations thereupon, and then leads to the bolt to become flexible, takes place not hard up between the appearance steel construction.
Description
Technical Field
The invention relates to the field of steel structures, in particular to a damping type steel structure node structure.
Background
Steel structures are structures composed of steel materials, and are one of the main types of building structures. The structure mainly comprises beam steel, steel column, steel truss and other components made of section steel, steel plate and the like, and rust removal and prevention 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 the self weight is lighter, and the construction is simple and convenient, the method is widely applied to the fields of large-scale factory buildings, venues, super high-rise buildings and the like.
The present factory building also adopts steel construction mostly, and steel construction node is fixed through the bolt when connecting, when receiving external force to lead to steel construction vibrations, can lead to being used for fixed bolt to take place not hard up, and then cause taking place not hard up between the steel construction, and most do not set up damper in node department, consequently when receiving great external force, the pressurized load of node department rises, and the bolt breaks easily in node department, for this reason we propose a damping type steel construction node structure.
Disclosure of Invention
The invention mainly aims to provide a damping steel structure node structure, which solves the problems in the background technology.
In order to achieve the above purpose, the damping steel structure node structure provided by the invention comprises a fixed plate and a steel plate, wherein a splicing component and a driven cushioning component are arranged on the right side of the fixed plate, and the splicing component comprises:
the left side of the fixing rod is fixed on the right side of the fixing plate;
The right side of the fixing rod is hinged with the left side of the sleeve plate, and the right side of the sleeve plate is provided with a groove;
the fastening piece is arranged on the sleeve plate;
the clamping piece is arranged in and on the surface of the sleeve plate.
Optionally, the fastener includes the bolt, the bolt runs through the sleeve board and with sleeve board threaded connection, the one end of bolt away from the sleeve board is run through by the pull rod and with pull rod sliding connection, be fixed with spring A on the inner wall of bolt.
Optionally, one end of the spring A far away from the bolt is fixed with a pull rod, and one end of the pull rod far away from the bolt is fixed with a pull plate.
Optionally, the dead piece of card includes the clamp plate, one side that the clamp plate is close to the loop board is fixed with the loop bar, the loop bar runs through the loop board and with loop board sliding connection, the one end that the clamp plate was kept away from to the loop bar is run through by the montant and with montant sliding connection, the montant is fixed on the inner wall of loop board, the one end that the loop bar is close to the montant is fixed with spring B.
Optionally, one end that the loop bar was kept away from to spring B is fixed on the inner wall of loop board, the loop bar is close to the one end of bolt and articulates there is branch, the one end that the loop bar was kept away from to branch is articulated with the limiting plate, the limiting plate runs through the loop board and with loop board sliding connection.
Optionally, driven bradyseism subassembly includes the arc, the right side at the fixed plate is fixed to the arc, the one end that the fixed plate was kept away from to the arc is run through by the butt pole and with butt pole sliding connection, be fixed with spring C on the inner wall of arc, the one end that the arc was kept away from to spring C is fixed with the butt pole.
Optionally, driven bradyseism subassembly still includes the mount, the inboard at the recess of bushing right side is fixed to the mount, the inboard slidable mounting of mount has the slide, the slide is close to one side of bolt and articulates there is the connecting rod, the one end that the slide was kept away from to the connecting rod runs through mount and bushing and limiting plate and articulates, the slide is kept away from one side of limiting plate and is fixed with the elastic sheet.
Optionally, a triangular groove is formed in the surface of the steel plate.
Optionally, the pressing plate is provided with a through hole, and the surface of the steel plate is provided with a threaded hole.
Compared with the prior art, the invention has the following beneficial effects:
(1) This shock attenuation formula steel construction node structure, through the splice assembly who sets up, screw threaded hole on the steel sheet is screwed into to the control bolt fixes the back to the steel sheet, and the arm-tie can support the control limiting plate and clip the bolt on the clamp plate for the bolt can not continue to rotate, and then avoids when the steel sheet receives vibrations, and the bolt takes place vibrations thereupon, and then leads to the bolt to become flexible, takes place not hard up between the appearance steel construction.
(2) This shock attenuation formula steel construction node structure through the driven bradyseism subassembly that sets up, when the sleeve board takes place the luffing motion with the articulated position of dead lever, the sleeve board can support and promote on supporting the pole and support the pole shrink arc in compressing spring C to play the effect of bradyseism.
(3) This shock attenuation formula steel construction node structure, splice assembly and driven cushioning subassembly through setting up, the elastic sheet can insert in the triangle recess on steel sheet surface and carry out spacingly to the steel sheet, when taking place slight swing between steel sheet and the cover board, can extrude the elastic sheet, further improves the effect of cushioning under the elasticity effect of elastic sheet self.
(4) This shock attenuation formula steel construction node structure when dismantling the steel sheet, only needs pulling arm-tie to keeping away from one side of sleeve board and remove, and the clamp plate no longer is by the arm-tie to be abutted against, and then can control the limiting plate and no longer clip the bolt and carry out spacing to the bolt to the fixing to the steel sheet can be relieved to direct reverse bolt, thereby the amount can be taken off the steel sheet.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall apparatus of the present invention;
FIG. 2 is a schematic cross-sectional elevation view of the present invention;
FIG. 3 is a schematic view of the enlarged structure of FIG. 2A according to the present invention;
FIG. 4 is an enlarged schematic view of the structure B of FIG. 2 according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 3C according to the present invention;
FIG. 6 is a schematic cross-sectional elevational view of a fastener of the present invention.
Reference numerals illustrate: 1. a fixing plate; 2. a steel plate; 3. a splice assembly; 31. a fixed rod; 32. a sleeve plate; 33. a fastener; 34. a stuck member; 331. a bolt; 332. a pull rod; 333. a spring A; 334. pulling a plate; 341. a pressing plate; 342. a loop bar; 343. a vertical rod; 344. a spring B; 345. a support rod; 346. a limiting plate; 4. driven cushioning component; 41. an arc-shaped plate; 42. a supporting rod; 43. a spring C; 44. a fixing frame; 45. a slide plate; 46. an elastic sheet; 47. and a connecting rod.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1 to 6, the present invention proposes a shock absorbing steel structure node structure, which comprises a fixing plate 1 and a steel plate 2, wherein a splicing assembly 3 and a driven cushioning assembly 4 are arranged on the right side of the fixing plate 1.
In the embodiment of the invention, the splicing assembly 3 comprises a fixing rod 31, the left side of the fixing rod 31 is fixed on the right side of the fixing plate 1, the right side of the fixing rod 31 is hinged with the left side of a sleeve plate 32, the right side of the sleeve plate 32 is provided with a groove, the sleeve plate 32 is provided with a fastening piece 33, and the inside and the surface of the sleeve plate 32 are provided with a clamping piece 34.
Specifically, the splice assembly 3 includes a fixing rod 31, a sleeve plate 32, a fastener 33 and a locking member 34, the fastener 33 includes a bolt 331, the bolt 331 penetrates through the sleeve plate 32 and is in threaded connection with the sleeve plate 32, one end of the bolt 331 far away from the sleeve plate 32 is penetrated by a pull rod 332 and is in sliding connection with the pull rod 332, a spring A333 is fixed on the inner wall of the bolt 331, one end of the spring A333 far away from the bolt 331 is fixed with the pull rod 332, and one end of the pull rod 332 far away from the bolt 331 is fixed with a pull plate 334.
In an embodiment of the present invention, the locking member 34 includes a pressing plate 341, a sleeve rod 342 is fixed on a side of the pressing plate 341 near the sleeve plate 32, the sleeve rod 342 penetrates the sleeve plate 32 and is slidably connected with the sleeve plate 32, an end of the sleeve rod 342 far away from the pressing plate 341 is penetrated by a vertical rod 343 and is slidably connected with the vertical rod 343, the vertical rod 343 is fixed on an inner wall of the sleeve plate 32, a spring B344 is fixed on an end of the sleeve rod 342 near the vertical rod 343, an end of the spring B344 far away from the sleeve rod 342 is fixed on an inner wall of the sleeve plate 32, a strut 345 is hinged on an end of the sleeve rod 342 near the bolt 331, an end of the strut 345 far away from the sleeve rod 342 is hinged with a limiting plate 346, the limiting plate 346 penetrates the sleeve plate 32 and is slidably connected with the sleeve plate 32, when the bolt 331 is screwed down, the pulling plate 334 can push the pressing plate 341 to move towards a side near the sleeve plate 32, the pressing plate 341 moves together with the sleeve rod 342, the sleeve rod 342 pushes the limiting plate 346 towards a side near the bolt 331 through the strut 345, the limiting plate 346 can hug the bolt 331 tightly, and the bolt 331 is ensured to limit the bolt 331.
In this embodiment, driven bradyseism subassembly 4 includes arc 41, arc 41 fixes on the right side of fixed plate 1, the one end that fixed plate 1 was kept away from to arc 41 is run through by supporting pole 42 and with supporting pole 42 sliding connection, be fixed with spring C43 on the inner wall of arc 41, the one end that arc 41 was kept away from to spring C43 is fixed with supporting pole 42, when the cover plate 32 and the articulated position of fixed lever 31 take place the luffing motion, cover plate 32 can support and promote supporting pole 42 to shrink in arc 41 to spring C43 on supporting pole 42 to play the effect of bradyseism.
In addition, the driven cushioning component 4 further comprises a fixing frame 44, the fixing frame 44 is fixed on the inner side of the right groove of the sleeve plate 32, a sliding plate 45 is slidably mounted on the inner side of the fixing frame 44, a connecting rod 47 is hinged to one side, close to the bolt 331, of the sliding plate 45, one end, far away from the sliding plate 45, of the connecting rod 47 penetrates through the fixing frame 44 and the sleeve plate 32 to be hinged to the limiting plate 346, an elastic piece 46 is fixed on one side, far away from the limiting plate 346, of the sliding plate 45, and the elastic piece 46 is made of iron and has certain elasticity and can deform.
In order to further improve the effect of the shock absorption, the surface of the steel plate 2 is provided with a triangular groove, the elastic piece 46 can be inserted into the triangular groove on the surface of the steel plate 2 to limit the steel plate 2, and when the steel plate 2 and the sleeve plate 32 slightly swing, the elastic piece 46 can be extruded, so that the effect of the shock absorption is further improved under the elastic action of the elastic piece 46.
In the embodiment of the invention, the pressing plate 341 is provided with a through hole for the bolt 331 to pass through, and the surface of the steel plate 2 is provided with a threaded hole for the bolt 331 to insert and fix the steel plate 2.
In the invention, when the steel plate 2 is used, after the steel plate 2 is inserted from the groove on the right side of the sleeve plate 32, the bolt 331 is screwed, the bolt 331 moves downwards together with the pull plate 334, after the bolt 331 is screwed into the threaded hole on the surface of the steel plate 2 and connected with the steel plate 2, the bolt 331 is screwed, the steel plate 2 is fixed on the sleeve plate 32, at the moment, the pull plate 334 abuts against the pressing plate 341 to push the pressing plate 341 to move towards the side close to the sleeve plate 32, the pressing plate 341 moves together with the sleeve rod 342, the sleeve rod 342 pushes the limiting plate 346 to move towards the side close to the bolt 331 through the supporting rod 345, the limiting plate 346 can tightly hold the bolt 331, and the bolt 331 is limited, so that the bolt 331 cannot be loosened due to vibration in use.
At this time, the limiting plate 346 pushes the sliding plate 45 to move to a side close to the steel plate 2 through the connecting rod 47, the sliding plate 45 moves together with the elastic piece 46, the elastic piece 46 is inserted into the triangular groove on the surface of the steel plate 2, when slight swing occurs between the steel plate 2 and the sleeve plate 32, the elastic piece 46 can be extruded, and the cushioning effect is further improved under the elastic action of the elastic piece 46.
When the sleeve plate 32 swings up and down at the hinged position with the fixing rod 31, the sleeve plate 32 can prop against the propping rod 42 to push the propping rod 42 to retract into the arc-shaped plate 41 to compress the spring C43, so that the damping effect is achieved.
When the steel plate 2 needs to be disassembled, only the pull plate 334 is required to be pulled, the pull plate 334 carries the pull rod 332 to move to the side far away from the bolt 331, the pull plate 334 does not abut against the pressing plate 341 any more, the sleeve rod 342 moves to the side far away from the steel plate 2 under the action of the spring B344, the sleeve rod 342 pulls the limiting plate 346 to move to the side far away from the bolt 331 through the supporting rod 345, the limiting plate 346 does not limit the bolt 331 any more, and the steel plate 2 can be disassembled after the bolt 331 is unscrewed by reversing the bolt 331.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (3)
1. The utility model provides a shock attenuation formula steel construction node structure, includes fixed plate (1) and steel sheet (2), its characterized in that: the right side of fixed plate (1) is provided with concatenation subassembly (3) and driven bradyseism subassembly (4), concatenation subassembly (3) include:
A fixing rod (31), wherein the left side of the fixing rod (31) is fixed on the right side of the fixing plate (1);
the right side of the fixing rod (31) is hinged with the left side of the sleeve plate (32), and the right side of the sleeve plate (32) is provided with a groove;
A fastener (33), wherein the sleeve plate (32) is provided with the fastener (33);
The clamping piece (34) is arranged in and on the surface of the sleeve plate (32);
The fastener (33) comprises a bolt (331), the bolt (331) penetrates through the sleeve plate (32) and is in threaded connection with the sleeve plate (32), one end of the bolt (331) far away from the sleeve plate (32) is penetrated by the pull rod (332) and is in sliding connection with the pull rod (332), a spring A (333) is fixed on the inner wall of the bolt (331), one end of the spring A (333) far away from the bolt (331) is fixed with the pull rod (332), one end of the pull rod (332) far away from the bolt (331) is fixed with the pull plate (334), the clamping piece (34) comprises a pressing plate (341), one side of the pressing plate (341) close to the sleeve plate (32) is fixedly provided with a sleeve rod (342), the sleeve rod (342) penetrates through the sleeve plate (32) and is in sliding connection with the sleeve plate (32), one end of the sleeve rod (342) far away from the pressing plate (341) is penetrated by the vertical rod (343) and is in sliding connection with the vertical rod (343), one end of the sleeve rod (343) is fixed on the inner wall of the sleeve plate (32), one end of the sleeve rod (342) close to the spring (342) is fixed on one end (342) close to the inner wall of the sleeve plate (342), the one end that loop bar (342) was kept away from to branch (345) is articulated with limiting plate (346), limiting plate (346) runs through loop plate (32) and with loop plate (32) sliding connection, driven bradyseism subassembly (4) include arc (41), the right side at fixed plate (1) is fixed to arc (41), the one end that fixed plate (1) was kept away from to arc (41) is run through by supporting rod (42) and with supporting rod (42) sliding connection, be fixed with spring C (43) on the inner wall of arc (41), the one end that arc (41) was kept away from to spring C (43) is fixed with supporting rod (42), driven bradyseism subassembly (4) still including mount (44), the inboard of recess on the right side of loop plate (32) is fixed to mount (44), the inboard slidable mounting of mount (44) has slide (45), one side that slide (45) is close to bolt (331) articulates there is connecting rod (47), one end that slide (45) were kept away from slide (45) and one side that limiting plate (46) were kept away from to limiting plate (46).
2. A shock absorbing steel structure node construction as set forth in claim 1 wherein: triangular grooves are formed in the surface of the steel plate (2).
3. A shock absorbing steel structure node construction as set forth in claim 1 wherein: the pressing plate (341) is provided with a through hole, and the surface of the steel plate (2) is provided with a threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210845836.6A CN114991304B (en) | 2022-07-19 | 2022-07-19 | Damping type steel structure node structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210845836.6A CN114991304B (en) | 2022-07-19 | 2022-07-19 | Damping type steel structure node structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114991304A CN114991304A (en) | 2022-09-02 |
| CN114991304B true CN114991304B (en) | 2024-05-10 |
Family
ID=83022721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210845836.6A Active CN114991304B (en) | 2022-07-19 | 2022-07-19 | Damping type steel structure node structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114991304B (en) |
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| CN215406605U (en) * | 2021-04-11 | 2022-01-04 | 河北扬图建筑工程有限公司 | Safe formula steel construction node component |
| CN216239031U (en) * | 2021-10-12 | 2022-04-08 | 唐山金世隆机械制造有限公司 | Steel construction that concatenation is firm |
| CN216239034U (en) * | 2021-11-11 | 2022-04-08 | 陕西启蛰电力工程有限公司 | Safe formula steel construction node component |
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| CN114991304A (en) | 2022-09-02 |
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