CN220414536U - Assembled RCS combined node - Google Patents
Assembled RCS combined node Download PDFInfo
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- CN220414536U CN220414536U CN202322258525.2U CN202322258525U CN220414536U CN 220414536 U CN220414536 U CN 220414536U CN 202322258525 U CN202322258525 U CN 202322258525U CN 220414536 U CN220414536 U CN 220414536U
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- precast concrete
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 229
- 239000010959 steel Substances 0.000 claims abstract description 229
- 239000011178 precast concrete Substances 0.000 claims abstract description 50
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 17
- 238000010008 shearing Methods 0.000 abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 15
- 230000002787 reinforcement Effects 0.000 description 9
- 210000003205 muscle Anatomy 0.000 description 8
- 238000009415 formwork Methods 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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Abstract
The utility model discloses an assembled RCS combined node, which comprises a precast concrete column, wherein a steel sleeve is arranged on the periphery of a node area of the precast concrete column, I-steel beams are arranged on two sides of the steel sleeve, the end parts of the I-steel beams are attached to the steel sleeve, opposite-pull steel bars penetrating through the steel sleeve are fixedly connected to the inner side of the steel sleeve, and the end parts of the I-steel beams are fixedly connected with the end parts of the opposite-pull steel bars and the side walls of the steel sleeve. According to the utility model, the opposite-pulling steel bars penetrating through the steel sleeve are fixed in the steel sleeve at the periphery of the node area of the precast concrete column, the opposite-pulling steel bars are coated by the concrete of the precast concrete column, the connectivity of the whole steel sleeve and the I-steel beams and the precast concrete column is ensured, and the two I-steel beams are connected into an integral structure by the opposite-pulling steel bars, so that the opposite-pulling steel bars can better transmit shearing force between the two I-steel beams, and the bearing capacity of the node area of the precast concrete column is further improved.
Description
Technical Field
The utility model relates to a reinforced concrete structure, in particular to an assembled RCS combined node.
Background
The RCS combined node is a reinforced concrete column-steel beam mixed structure and is a core part of an assembled concrete frame structure. The construction mode of the combined node and the earthquake resistance thereof not only influence the construction efficiency of the assembled structure, but also directly determine the integral earthquake resistance of the frame structure.
The Chinese patent with the publication number of CN207277561U and the name of built-in steel reinforced concrete core column superposed column-steel beam combined frame discloses an RCS combined node structure as shown in figure 1, wherein a rectangular thick-wall steel tube 3-1 at a node is arranged outside a concrete column, a node upper end plate 3-2 and a node lower end plate 3-3 are respectively arranged at the top and the bottom of the rectangular thick-wall steel tube 3-1 at the node, and an RCS combined node structure is formed by the I-steel beam and the rectangular thick-wall steel tube 3-1 at the node, the node upper end plate 3-2 and the node lower end plate 3-3 in a bolt connection mode. In the cited patent, the rectangular thick-wall steel pipe 3-1 at the node adopts a thick pipe wall to ensure the integral strength, and the bearing capacity of the I-shaped steel beam is improved by the upper end plate 3-2 of the node and the lower end plate 3-3 of the node, so that the problem of overlarge dead weight of steel at the node combination node is obvious. Moreover, the inner cavity of the rectangular thick-wall steel pipe 3-1 at the node is of a cavity structure, and poor connectivity with the concrete column leads to weak overall bearing capacity of the rectangular thick-wall steel pipe 3-1 at the node, and simultaneously leads to defects of shear force transmission and earthquake resistance of the rectangular thick-wall steel pipe 3-1 at the node, so that the problem needs to be solved.
Disclosure of Invention
In order to avoid and overcome the technical problems in the prior art, the utility model provides an assembled RCS combined node which has the advantages of light weight, high bearing capacity, good shear force transmission and anti-seismic effect.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an assembled RCS composite node, includes precast concrete post, precast concrete post's node region periphery is provided with the steel sleeve, the both sides of steel sleeve all are provided with the I-steel girder, the tip and the laminating of steel sleeve of I-steel girder, the inboard fixedly connected with of steel sleeve runs through the telescopic counter-pulling steel bar of steel, the tip and the equal fixed connection of the lateral wall of counter-pulling steel bar of I-steel girder.
As a further scheme of the utility model: the end of the horizontal section of the I-shaped steel beam is provided with flange plates which extend towards two sides and are fixedly connected with the steel sleeve, one side, close to the steel sleeve, of each flange plate is provided with a welding surface, at least three opposite-pull reinforcing bars are distributed along the line length direction of the end of the horizontal section, and the opposite-pull reinforcing bars are welded with the welding surfaces and the end of the horizontal section.
As still further aspects of the utility model: opposite-pull steel bars are aligned and distributed at two horizontal sections of the I-shaped steel beam, and the line length direction of the opposite-pull steel bars is parallel to the line length direction of the horizontal sections of the I-shaped steel beam.
As still further aspects of the utility model: the inner wall of the steel sleeve is embedded to the inner side of the precast concrete column, and the outer surface wall of the steel sleeve is flush with the outer surface wall of the precast concrete column.
As still further aspects of the utility model: the inside of precast concrete post has the longitudinal reinforcement that distributes along precast concrete post axial, to drawing reinforcing bar and longitudinal reinforcement dislocation distribution.
As still further aspects of the utility model: the outside of indulging the muscle is provided with the stirrup, the outside of indulging the muscle is located the inboard one section of steel sleeve and is not equipped with the stirrup, and indulge the muscle and laminate with steel sleeve inner wall.
As still further aspects of the utility model: the flange plate is of a right triangle structure, and two right-angle edges of the flange plate are welded with the I-shaped steel beam and the steel sleeve respectively.
As still further aspects of the utility model: the side wall of the steel sleeve is provided with a through hole for the opposite-pull steel bar to penetrate.
As still further aspects of the utility model: and two ends of the opposite-pull steel bars are flush with the outer surface wall of the steel sleeve.
As still further aspects of the utility model: the diameter of the opposite-pull steel bars is larger than the thicknesses of the flange plates and the horizontal section.
Compared with the prior art, the utility model has the beneficial effects that:
1. opposite-pull steel bars penetrating through the steel sleeve are fixed inside the steel sleeve at the periphery of the joint area of the precast concrete column, and the opposite-pull steel bars are fixedly connected with the steel sleeve and I-shaped steel beams fixed at two sides of the steel sleeve; the opposite-pull steel bars are coated by the concrete of the precast concrete column, so that the connectivity of the steel sleeve and the I-shaped steel beam and the precast concrete column is ensured, and the bearing capacity of the steel sleeve is improved; and the two I-shaped steel beams are connected into an integrated structure through the opposite-pull steel bars, so that the opposite-pull steel bars can better transfer shearing force between the two I-shaped steel beams when the two I-shaped steel beams are born, and the bearing capacity of the node area of the precast concrete column is further improved.
2. The flange plates are formed by extending the end parts of the horizontal sections of the I-shaped steel beams to two sides, and are welded with the steel sleeves, so that the connection stability between the I-shaped steel beams and the steel sleeves is improved, and more opposite-pull steel bars can be welded between the two I-shaped steel beams conveniently, so that the bearing capacity of the whole structure is improved; moreover, on the premise of unchanged number of the opposite-pull steel bars, the distribution distance between the opposite-pull steel bars can be increased, so that shearing force applied to the opposite-pull steel bars is radiated to the concrete of the precast concrete column in a larger range, and the bearing capacity of the node area of the precast concrete column is further increased.
3. The two horizontal sections of the I-shaped steel beam are respectively and uniformly distributed with opposite-pull steel bars, so that when the I-shaped steel beam is subjected to downward shearing force, the opposite-pull steel bars positioned on the upper horizontal section and the opposite-pull steel bars positioned on the lower horizontal section bear shearing force loads, and the bearing capacity of the node area of the precast concrete column is further improved. The longitudinal direction of the opposite-pulling steel bars is parallel to the longitudinal direction of the horizontal section of the I-shaped steel beam, so that the stress direction of the opposite-pulling steel bars is basically the same as the longitudinal direction of the opposite-pulling steel bars, thereby reducing the additional acting force between the opposite-pulling steel bars and the concrete of the precast concrete column, reducing the damage of the opposite-pulling steel bars to the concrete and prolonging the service life of the opposite-pulling steel bars.
4. The inner wall of the steel sleeve is embedded to the inner side of the precast concrete column, and the outer surface wall of the steel sleeve is flush with the outer surface wall of the precast concrete column, so that the I-beam can be welded after the steel sleeve and the precast concrete column are integrally formed, the I-beam and the steel sleeve are not required to be welded before the precast concrete column is poured, and the difficulty of assembling a precast formwork is reduced.
5. The split steel bars and the longitudinal bars of the precast concrete are distributed in a staggered manner, so that the mutual interference of the split steel bars and the longitudinal bars during construction is prevented, and in actual implementation, the split steel bars and the steel sleeves can be welded in factories and then conveyed to a construction site to be assembled with the longitudinal bars, the split steel bars and the steel sleeves are not required to be welded in the construction site, and the construction efficiency is improved.
6. The section that is located the steel sleeve is inboard at indulging the muscle does not be equipped with the stirrup, through steel sleeve inner wall and indulge the muscle laminating to the steel sleeve acts as the stirrup, in order to reduce the use of stirrup, when practicing thrift the cost, still reduce the whole weight in precast concrete post node region.
7. The triangular structure of the flange plate, and two right-angle edges of the flange plate are welded with the I-steel beam and the steel sleeve respectively, and the triangular stability structure is adopted, so that the stability between the I-steel beam and the steel sleeve is improved.
8. The side wall of the steel sleeve is provided with a through hole for penetrating the opposite-pull steel bar, so that when the steel sleeve is assembled, after the opposite-pull steel bar is directly penetrated into the through hole, the opposite-pull steel bar is welded with the steel sleeve, and the welding efficiency of the steel sleeve and the opposite-pull steel bar is improved.
9. The two ends of the opposite-pull steel bar are flush with the steel sleeve, so that when the steel sleeve is fixed on the inner side of the prefabricated template, the two ends of the opposite-pull steel bar cannot extend to the outer side of the prefabricated template, and the prefabricated template is convenient to assemble.
10. The diameter of the opposite-pulling steel bar is larger than the thickness of the horizontal sections of the flange plate and the I-shaped steel beam, so that after the end parts of the opposite-pulling steel bar are aligned with the horizontal sections of the flange plate and the I-shaped steel beam, the end parts of the opposite-pulling steel bar are provided with end faces which are not shielded by the horizontal sections of the flange plate and the I-shaped steel beam, and the welding of the opposite-pulling steel bar and the horizontal sections of the flange plate and the I-shaped steel beam can be realized through the end faces, so that the welding between the opposite-pulling steel bar and the I-shaped steel beam and the flange plate is facilitated.
Drawings
Fig. 1 is a schematic perspective view of a rectangular thick-walled steel pipe at the node of the cited patent.
Fig. 2 is a schematic view of a three-dimensional structure of the present utility model.
Fig. 3 is a schematic structural view of a perspective structure of the present utility model.
Fig. 4 is a schematic view of a steel sleeve according to the present utility model.
Fig. 5 is a schematic view of a steel sleeve and i-beam and counter-tension bar of the present utility model in a three-dimensional configuration.
Fig. 6 is a schematic top perspective view of the present utility model.
In the figure:
3-1, rectangular thick-wall steel pipes at the joints; 3-2, a node upper end plate; 3-3, a node lower end plate;
10. prefabricating a concrete column; 11. longitudinal ribs; 12. stirrups; 20. a steel sleeve; 21. a through hole; 30. an I-beam; 31. flange plates; 40. and (5) oppositely pulling the steel bars.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
For ease of understanding, the specific structure and operation of the utility model will be further described herein with reference to the accompanying drawings:
the concrete structure of the utility model is shown with reference to fig. 2-6, the main structure of the utility model comprises a steel sleeve 20 positioned at the periphery of the joint area of the precast concrete column 10, the inner side of the steel sleeve 20 is fixedly connected with a pair of pulling steel bars 40 penetrating through the steel sleeve 20, and the I-shaped steel beams 30 distributed at the two sides of the steel sleeve 20 are fixedly connected with the steel sleeve 20 and the pair of pulling steel bars 40. The steel sleeve 20 is used for restraining concrete in the node area, and the opposite-pulling steel bars 40 are fixed in the steel sleeve 20, and as the opposite-pulling steel bars 40 are positioned in the precast concrete column 10, the connectivity of the steel sleeve 20, the I-shaped steel beam 30 and the precast concrete column 10 is ensured by coating the opposite-pulling steel bars 40 by the concrete of the precast concrete column 10, so that the bearing capacity of the steel sleeve 20 is improved; the opposite-pulling steel bars 40 are fixedly connected with the two I-shaped steel beams 30, so that the two I-shaped steel beams 30 and the opposite-pulling steel bars 40 form an integrated structure, and when the two I-shaped steel beams 30 are born, the opposite-pulling steel bars 40 can better transfer shearing force between the two I-shaped steel beams 30 so as to improve bearing capacity of the precast concrete column 10 at the node area.
On the basis of the above, as shown in fig. 5 and 6, the horizontal section end of the i-beam 30 extends to two sides to form a flange plate 31, and the flange plate 31 is welded with the steel sleeve 20, so that the connection stability between the i-beam 30 and the steel sleeve 20 is further improved. Then, as the welding surface is formed on one side of the flange plate 31 close to the steel sleeve 20, the welding surface of the opposite-pull steel bars 40 and the flange plate 31 and the end part of the horizontal section of the I-shaped steel beam 30 are welded through the arrangement of at least three opposite-pull steel bars 40; through the setting of flange plate 31, not only be convenient for weld more to drawing reinforcing bar 40 between I-steel beam 30 to promote the holistic bearing capacity of structure, and under the unchangeable prerequisite of drawing reinforcing bar 40 quantity, can promote the distribution interval between the drawing reinforcing bar 40, make the shearing force that drawing reinforcing bar 40 received radiate in the concrete of the precast concrete post 10 of bigger scope, with the bearing capacity that has promoted precast concrete post 10 node region department. Further, the flange plate 31 has a triangular structure as shown in fig. 6, and two right-angle edges of the flange plate 31 are welded to the i-beam 30 and the steel sleeve 20 respectively, and the stability between the i-beam 30 and the steel sleeve 20 is improved by adopting a triangular stability structure.
On the basis of the above, as shown in fig. 3, the two horizontal sections of the i-beam 30 are aligned and distributed with the opposite-pull steel bars 40, so that when the i-beam 30 is subjected to downward shearing force, the opposite-pull steel bars 40 positioned on the upper horizontal section and the opposite-pull steel bars 40 positioned on the lower horizontal section bear shearing force loads, and the bearing capacity of the node area of the precast concrete column 10 is further improved. The longitudinal direction of the counter-pulling steel bars 40 is parallel to the longitudinal direction of the horizontal section of the I-beam 30, so that the stress direction of the counter-pulling steel bars 40 is basically the same as the longitudinal direction of the counter-pulling steel bars 40, thereby reducing the additional acting force between the counter-pulling steel bars 40 and the concrete of the precast concrete column 10, reducing the damage of the counter-pulling steel bars 40 to the concrete and prolonging the service life of the counter-pulling steel bars 40.
On the basis, as shown in fig. 2, the inner wall of the steel sleeve 20 is embedded into the inner side of the precast concrete column 10, and the outer surface wall of the steel sleeve 20 is flush with the outer surface wall of the precast concrete column 10, so that when in construction, after the opposite-pull steel bars 40 are welded in the steel sleeve 20, the opposite-pull steel bars are directly fixed in a precast formwork for precast construction of the precast concrete column 10, the outer surface wall of the steel sleeve 20 is attached to the inner wall of the precast formwork, and after other steel bars in the precast concrete column 10 are laid, concrete raw materials are directly poured; after the precast concrete column 10 is formed, the I-shaped steel beam 30 is welded with the steel sleeve 20, and the construction of the RCS combined node is completed. By integrally forming the steel sleeve 20 and the precast concrete column 10 and then welding the I-beam 30, the I-beam 30 and the steel sleeve 20 do not need to be welded before the precast concrete column 10 is poured, and the assembling difficulty of the precast formwork is reduced. In order to facilitate the implementation of the above construction process, as shown in fig. 4, the sidewall of the steel sleeve 20 has a through hole 21 for the opposite-pulling reinforcement 40 to pass through, so that when assembling, the opposite-pulling reinforcement 40 is directly inserted into the through hole 21, and then the opposite-pulling reinforcement 40 is welded with the steel sleeve 20; as shown in fig. 5, both ends of the opposite-pull reinforcing bars 40 are flush with the steel sleeve 20 so that the both ends of the opposite-pull reinforcing bars 40 do not extend to the outside of the prefabricated form when the steel sleeve 20 is fixed to the inside of the prefabricated form; as shown in fig. 5, the diameter of the counter-stretching reinforcement 40 is greater than the thickness of the horizontal sections of the flange plate 31 and the i-beam 30, so that after the end of the counter-stretching reinforcement 40 is aligned with the horizontal sections of the flange plate 31 and the i-beam 30, the end of the counter-stretching reinforcement 40 has an end surface which is not shielded by the horizontal sections of the flange plate 31 and the i-beam 30, and the welding of the counter-stretching reinforcement 40 with the horizontal sections of the flange plate 31 and the i-beam 30 can be realized through the end surface.
On the basis, as shown in fig. 6, the opposite-pull steel bars 40 and the longitudinal bars 11 of the precast concrete column 10 are distributed in a staggered manner, so that the opposite-pull steel bars 40 and the longitudinal bars 11 are prevented from interfering with each other in the construction process. The outside of indulging muscle 11 is located the inboard of steel sleeve 20 and is not equipped with stirrup 12 as shown in fig. 3, and the outside of indulging muscle 11 is laminated with steel sleeve 20 to the one section that indulges muscle 11 is located the inboard of steel sleeve 20 acts as stirrup 12 through steel sleeve 20, has reduced construction cost. During concrete construction, the steel sleeve 20 welded with the opposite-pull steel bars 40 can be sleeved outside the longitudinal bars 11 and then directly slid to the node area of the precast concrete column 10, so that the construction is rapid and convenient.
It will be understood by those skilled in the art that the present utility model is not limited to the details of the foregoing exemplary embodiments, but includes other specific forms of the same or similar structures that may be embodied without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.
Claims (10)
1. The utility model provides an assembled RCS composite node, its characterized in that, includes precast concrete post (10), the node region periphery of precast concrete post (10) is provided with steel sleeve (20), the both sides of steel sleeve (20) all are provided with I-steel girder (30), and after the both sides of transversely running through steel sleeve (20) to drawing reinforcing bar (40), the tip of I-steel girder (30) respectively with the corresponding end laminating of drawing reinforcing bar (40) and the corresponding end of steel sleeve (20) and fixed connection.
2. The assembled RCS composite node according to claim 1, wherein a flange plate (31) extending to two sides and fixedly connected with the steel sleeve (20) is formed at an end of the horizontal section of the i-steel beam (30), a welding surface is formed at one side of the flange plate (31) close to the steel sleeve (20), at least three opposite-pull steel bars (40) are distributed along a line length direction of the end of the horizontal section, and the opposite-pull steel bars (40) are welded with the welding surface and the end of the horizontal section.
3. The assembled RCS assembly node according to claim 2, wherein the two horizontal sections of the i-beam (30) are aligned with each other and are provided with opposite-pull steel bars (40), and the longitudinal direction of the opposite-pull steel bars (40) is parallel to the longitudinal direction of the horizontal section of the i-beam (30).
4. A fabricated RCS composite node according to claim 3, characterized in that the inner wall of the steel sleeve (20) is embedded inside the precast concrete column (10) and the outer surface wall of the steel sleeve (20) is flush with the outer surface wall of the precast concrete column (10).
5. An assembled RCS composite node according to claim 1, 2, 3 or 4, wherein the precast concrete column (10) has longitudinal bars (11) axially distributed along the precast concrete column (10), and the counter-pulling bars (40) are offset from the longitudinal bars (11).
6. The assembled RCS assembly node according to claim 5, wherein the stirrup (12) is disposed outside the longitudinal rib (11), a section of the outer portion of the longitudinal rib (11) located inside the steel sleeve (20) is not provided with the stirrup (12), and the longitudinal rib (11) is attached to the inner wall of the steel sleeve (20).
7. An assembled RCS assembly node according to claim 2, 3 or 4, wherein the flange plate (31) has a right triangle structure, and two right angle edges of the flange plate (31) are welded to the i-beam (30) and the steel sleeve (20), respectively.
8. A fabricated RCS assembly node according to claim 2 or 3 or 4, characterized in that the side wall of the steel sleeve (20) has a through hole (21) for the penetration of a counter-pulled steel bar (40).
9. A fabricated RCS assembly node according to claim 2, 3 or 4, wherein the opposite ends of the tie bars (40) are flush with the outer surface wall of the steel sleeve (20).
10. A fabricated RCS assembly node according to claim 2 or 3 or 4, wherein the diameter of the counter-drawn rebars (40) is greater than the thickness of the flange plate (31) and the horizontal section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322258525.2U CN220414536U (en) | 2023-08-22 | 2023-08-22 | Assembled RCS combined node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322258525.2U CN220414536U (en) | 2023-08-22 | 2023-08-22 | Assembled RCS combined node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220414536U true CN220414536U (en) | 2024-01-30 |
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ID=89648635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322258525.2U Active CN220414536U (en) | 2023-08-22 | 2023-08-22 | Assembled RCS combined node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220414536U (en) |
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2023
- 2023-08-22 CN CN202322258525.2U patent/CN220414536U/en active Active
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