CN217299267U - Full-assembly type building - Google Patents

Full-assembly type building Download PDF

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Publication number
CN217299267U
CN217299267U CN202123315961.6U CN202123315961U CN217299267U CN 217299267 U CN217299267 U CN 217299267U CN 202123315961 U CN202123315961 U CN 202123315961U CN 217299267 U CN217299267 U CN 217299267U
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prefabricated
precast
cast
floor slab
steel bars
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CN202123315961.6U
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赵丹
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Sanneng Integrated Housing Co Ltd
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Sanneng Integrated Housing Co Ltd
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Abstract

A fully assembled building is characterized in that a foundation and a prefabricated column are connected through a grouting sleeve process; the prefabricated beam is a prefabricated superposed beam, and two sides of a prefabricated layer of the prefabricated superposed beam are respectively prefabricated with a floor lap joint area; a bridging support is prefabricated at the joint of the prefabricated superposed beams of the prefabricated floor slab; two ends of the precast beam are respectively connected with the precast columns through connecting nodes, and beam gluten and beam structural steel bars of the precast beam respectively extend into the precast columns and are in crisscross connection with the column structural steel bars of the precast columns; the prefabricated floor slab is lapped on a floor slab lapping area of the prefabricated beam through a lapping support, and plate construction steel bars of the prefabricated floor slab extend into a cast-in-situ layer of the prefabricated beam and are connected with stirrups and beam surface steel bars in the cast-in-situ layer in a longitudinal and transverse staggered mode; the side of the splicing seam of the adjacent precast floor slabs is symmetrically provided with a rabbet and a post-cast strip, and additional steel bars extending into the cast-in-situ layer of the adjacent precast beams are placed in the post-cast strip; and integrally casting the precast beam cast-in-place layer, the connecting nodes of the precast beam and the precast column and the post-cast strip in place. The utility model discloses production simple manufacture assembles fast.

Description

Full-assembly type building
Technical Field
The utility model relates to an assembly type structure, especially a full assembly type structure.
Background
Buildings assembled from prefabricated elements at the site are called fabricated buildings. That is, with the development of modern industrial technology, building houses can be made in batches and sets like machine production, by prefabricating house components (beams, panels, columns, etc.) at a factory and then transporting them to a construction site for assembly. Compared with the cast-in-place operation of the traditional building, the assembly type building has the advantages of greatly reducing the cast-in-place operation, having higher building efficiency and being more environment-friendly in construction, thereby being more and more widely applied.
However, the existing assembly type building components are complex in production design and slow in assembly speed, and have a lot of cast-in-place operations, the usage amount of the template is large, so that the field construction speed is influenced, and the construction cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, the component structure to present assembly type structure is complicated, and the equipment is slow, and cast-in-place operation is many not enough, the utility model provides a full assembly type structure, its production simple manufacture, the equipment is quick, and is little to the site operation influence.
In order to solve the technical problem, the utility model provides a full assembled building, it includes basis, prefabricated post, precast beam and prefabricated floor to have following structural feature:
the bottom of the prefabricated column is embedded with a grouting sleeve, and the upper part of the prefabricated column extends out of the column structural steel bar;
the prefabricated beam is a prefabricated superposed beam, the prefabricated superposed beam comprises a prefabricated layer, a cast-in-place layer and a steel reinforcement framework, and two sides of the prefabricated layer are respectively and integrally prefabricated with a floor slab lap joint area for lap joint of the prefabricated floor slab;
the prefabricated floor slab comprises a fully prefabricated concrete slab body, slab construction steel bars extend out of the periphery of the slab body respectively, and a junction support for lapping on the prefabricated layer is prefabricated at the joint of a prefabricated superposed beam of the slab body;
connecting reinforcing steel bars matched with the grouting sleeves at the bottoms of the prefabricated columns are pre-buried on the foundation, and the connecting reinforcing steel bars of the foundation are connected with the grouting sleeves of the prefabricated columns through a grouting sleeve process;
two ends of the precast beam are respectively connected with the precast columns through connecting nodes, and the beam gluten and the beam structural steel bars of the precast beam respectively extend into the precast columns and are in crisscross connection with the column structural steel bars of the precast columns;
the precast floor slab is lapped in a floor slab lapping area of the precast beam through the lapping support, and plate construction steel bars of the precast floor slab extend into a cast-in-situ layer of the precast beam and are connected with stirrups and beam surface steel bars in the cast-in-situ layer in a longitudinal and transverse staggered manner;
the prefabricated floor slabs are mutually spliced to form a whole floor slab of a building structure, the splicing seam sides of the adjacent prefabricated floor slabs are symmetrically provided with grooves and tongues, post-cast strips are arranged between the splicing seam side grooves and tongues of the adjacent prefabricated floor slabs, and additional steel bars extending into cast-in-place layers of the adjacent prefabricated beams are placed in the post-cast strips;
and the cast-in-situ layer of the precast beam, the connecting nodes of the precast beam and the precast columns and the post-cast strip are integrally formed by casting concrete in situ.
The utility model discloses prefabricated post, precast beam and precast floor's simple structure, production simple manufacture, just the utility model discloses only prefabricated post passes through grout sleeve technology installation with the basis, only through simply the overlap joint between all the other components to utilize the component itself to enclose to establish between the cast-in-place interval of formation basically, make the template utilization ratio reduce by a wide margin, through once cast in situ concrete just can realize the connection of prefabricated post, precast beam and precast floor, therefore the equipment is quick, and is little to the site operation influence, has improved the efficiency of construction.
Preferably, the column structural steel bars of the precast columns are higher than the upper surfaces of the precast beams and are connected with grouting sleeves at the bottoms of the precast columns of the next-storey building through an irrigation sleeve process. Because the quality of prefabricated post is less relatively, be fit for adopting ripe grout sleeve technology to install, not only guaranteed the structural stability of prefabricated post, and simplified the installation procedure of prefabricated post, improved the installation effectiveness.
Preferably, the distance between the lower parts of the grooves and the tongues of the adjacent prefabricated floor slabs is 50mm, and the distance between the upper parts of the grooves and the tongues is not less than 300 mm; the post-cast strip extends to the lower part of the tongue-and-groove of the adjacent precast floor slab. Therefore, the splicing seam sides of the adjacent precast floor slabs can be stably connected from top to bottom through the post-pouring belt, and the connection of the same span precast floor slabs is ensured.
Preferably, the additional steel bars comprise additional structural steel bars arranged close to the tongue-and-groove platform of the precast floor slab, additional plate gluten arranged close to the upper surface of the post-cast strip and a plurality of lifting hook steel bars arranged along the length direction of the post-cast strip, each lifting hook steel bar is formed by bending a section of steel bar, two ends of each lifting hook steel bar extend towards the inner sides of the tongue-and-groove platforms of the first precast floor slab and the second precast floor slab respectively, the middle part of each lifting hook steel bar extends towards the lower part of the tongue-and-groove to form a U-shaped lifting hook, and an additional plate bottom rib is arranged on each U-shaped lifting hook of each lifting hook steel bar.
Preferably, the two ends of the additional construction steel bars, the additional plate gluten and the additional plate bottom tendon respectively extend into the adjacent cast-in-situ layer of the precast beam, so that the post-cast strip and the cast-in-situ layer of the precast beam are integrally formed, and the installation stability of the precast floor slab is improved.
Preferably, the lifting hook steel bars are arranged along the length direction of the post-cast strip at intervals of 200-600 mm, so that the strength of the bottom of the post-cast strip is consistent, and the overall strength of the post-cast strip is guaranteed.
Preferably, the width of the floor slab overlapping area is 50mm-100mm, the width of the abutment is 50mm-100mm, and the width of the floor slab overlapping area is matched with the width of the abutment so as to ensure that the precast floor slab is reliably overlapped on the precast beam and ensure the installation reliability of the precast floor slab.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the cast-in-place operation of the whole engineering of full assembly type structure is few, saves the engineering time, and only the part precast beam need adopt the template with the connected node of prefabricated post and post-cast strip bottom, and the template quantity is few, has saved the engineering template, and does not need to support at the bottom of the precast floor, and overall structure equipment is rapid, saves construction cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the single-layer assembly structure schematic diagram of the fully-fabricated building of the present invention.
Fig. 2 is the utility model discloses two-layer assembly structure schematic diagram of full assembly type structure.
Fig. 3 is a schematic perspective view of a prefabricated column.
Fig. 4 is a first perspective view (top view) of the precast beam.
Fig. 5 is a second perspective view (bottom view) of the precast beam.
Fig. 6 is a perspective view of the steel corner brace.
Fig. 7 is a perspective view of a precast floor slab.
Fig. 8 is a block diagram of adjacent precast floor slabs.
Fig. 9 is a schematic structural diagram of a connection node of a precast beam and a precast column.
FIG. 10 is a schematic view of a post-cast strip structure at a splice joint between adjacent precast floor slabs.
Fig. 11 is a structural schematic view of a connection node of a precast beam and a precast floor slab.
Detailed Description
The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.
For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.
As shown in fig. 1 and 2, the utility model discloses an embodiment of full assembled building includes prefabricated post 1, precast beam 2, prefabricated floor 3, steel angle sign indicating number 4.
As shown in fig. 3, the prefabricated column 1 is connected with a foundation (not shown) by a grouting sleeve process. The bottom of prefabricated post 1 is pre-buried grout sleeve 11, and post structural reinforcement 13 is stretched out on upper portion, and pre-buried first internal thread sleeve 12 in the side of prefabricated post 1 and precast beam 2 are connected.
As shown in fig. 4 and 5, the precast beam 2 is a precast composite beam, which includes a precast layer 21, a cast-in-place layer (not shown) and a steel reinforcement frame 22, the precast layer 21 is precast in a factory, the cast-in-place layer is cast in place after being installed in place, and both sides of the precast layer 21 are respectively precast in an integrated manner to form a floor slab overlapping area 211 for overlapping the precast floor slab 3. In the present embodiment, the width of the floor slab overlapping region 211 is 50mm, but obviously, the width of the floor slab overlapping region 211 is not limited thereto, and may be adaptively changed according to the floor slab span, etc. in practical use, and is usually 50mm to 100mm wide. The steel bar framework 22 comprises a series of stirrups 221 arranged in sequence along the length direction of the beam body and a plurality of straight reinforcements 222 arranged in parallel with the length direction of the beam body, wherein the straight reinforcements 222 comprise beam surface reinforcements 2221 arranged on the upper part of a cast-in-place layer and beam construction reinforcements 2222 arranged on the lower part of a prefabricated layer 21, the lower parts of the stirrups 221 are pre-embedded in the prefabricated layer 21, the upper parts of the stirrups 221 extend out of the prefabricated layer 21 and extend into the cast-in-place layer, the beam construction reinforcements 2222 are pre-embedded in the prefabricated layer 21, the beam surface reinforcements 2221 are connected with the stirrups 221 and are cast in place in the cast-in-place layer, and two ends of the beam surface reinforcements 2221 and the beam construction reinforcements 2222 respectively extend out of the beam body and extend into the prefabricated columns 1. In specific implementation, the beam surface rib 2221 is embedded before the cast-in-place layer is cast in place. In order to facilitate the temporary connection between the precast beam 2 and the precast column 1, the second internal thread sleeves 212 are respectively embedded at the bottoms of the two ends of the precast layer 21.
As shown in fig. 9, after all the prefabricated columns 1 are installed and fixed, the bottoms of the two ends of the prefabricated layer of the prefabricated beam 2 are temporarily connected with the side surfaces of the prefabricated columns 1 through steel angle connectors 4 by using fasteners 6 such as bolts, a connection node is formed between the end of the prefabricated beam 2 and the top of the prefabricated column 1, and in the connection node, the straight ribs 222 of the prefabricated beam 2 are connected with the column structural steel bars 13 of the prefabricated columns 1 in a criss-cross manner.
As shown in fig. 6, the steel angle 4 includes a first connection portion 41 and a second connection portion 42 connected at a right angle, the first connection portion 41 is provided with a first connection hole 411 matched with the first internal thread sleeve 12 pre-embedded on the side surface of the precast column, and the second connection portion 42 is provided with a second connection hole 421 matched with the second internal thread sleeve 212 pre-embedded on the end portion of the precast beam.
As shown in fig. 7 and 8, the precast floor slab 3 is a full precast concrete member, the slab thickness H of the precast floor slab 3 is the slab thickness of the building structure, and one standard precast floor slab 3 is spliced to form the whole floor slab of the building structure. The lap joint of the precast floor slab 3 and the precast beam 2 is provided with a bridging support 31, the width of the bridging support 31 is 50mm-100mm, and the length of the bridging support 31 is consistent with the length of the lap joint side of the precast floor slab 3. The width of the abutment 31 matches the width of the floor slab overlap 211, for example, the width of the floor slab overlap 211 is 50mm, and the width of the abutment 31 is also 50 mm. The abutment 31 is preferably formed by widening or lengthening the prefabricated floor 3. The tongue-and-groove 32 is arranged at the splicing seam side of the precast floor slab 3, the height of the lower part of the tongue-and-groove 32 is slightly half of the thickness of the precast floor slab, and the distance between the upper part and the lower part of the tongue-and-groove is not less than 125 mm. The prefabricated floor 3 is extended around the slab construction bars 33, respectively, to facilitate connection with surrounding members.
As shown in fig. 10, the splicing seam between the adjacent precast floor slabs 3 in the slab span range is in the form of a reserved post-cast strip 5, the distance between the lower parts of the grooves and the tongues of the adjacent precast floor slabs 3 is 50mm, the distance between the upper parts of the grooves and the tongues is not less than 300mm, that is, the width W of the post-cast strip is not less than 300mm, and the bottom of the post-cast strip extends to the lower parts of the grooves and the tongues of the adjacent precast floor slabs. Additional steel bars are placed in the post-cast strip 5. The additional reinforcing steel bars comprise additional structural reinforcing steel bars 51 arranged close to the groove platform of the precast floor slab, additional plate gluten 52 arranged close to the upper surface of the post-cast strip and a plurality of lifting hook reinforcing steel bars 53 arranged at intervals of 200-600 mm along the length direction of the post-cast strip. The lifting hook reinforcing steel bar 53 is formed by bending a section of reinforcing steel bar, two ends of the lifting hook reinforcing steel bar respectively extend towards the inner side of the rabbet platform of the adjacent prefabricated floor slab, the middle part of the lifting hook reinforcing steel bar extends towards the lower part of the rabbet to form a U-shaped lifting hook, and an additional slab bottom rib 54 is arranged on each U-shaped lifting hook. The two ends of the additional construction steel bar 51, the additional plate gluten 52 and the additional plate bottom bar 54 respectively extend into the cast-in-situ layer of the adjacent precast beam 2.
The utility model discloses the construction operation step of full assembled building does:
1. after the on-site terrace is leveled and tamped, the foundation construction is started, and the grouting sleeve connecting steel bars are reserved at the installation position of the prefabricated column 1.
2. According to the grouting sleeve process, the grouting sleeve 11 of the prefabricated column 1 is aligned to the reserved grouting sleeve connecting steel bar on the foundation to install the prefabricated column 1, and the prefabricated column 1 is fixed in place through grouting after the prefabricated column 1 is installed in place.
3. After all the prefabricated columns 1 are fixed, the prefabricated beam 2 is installed, steel angle connectors 4 are used as temporary supports between the prefabricated beam 2 and the prefabricated columns 1, screws penetrate through first connecting holes 411 of the steel angle connectors 4 and are screwed into first internal thread sleeves 12 of the prefabricated columns 1, the steel angle connectors 4 are locked by nuts to achieve connection of the steel angle connectors 4 and the prefabricated columns 1, screws penetrate through second connecting holes 421 of the steel angle connectors 4 and are screwed into second internal thread sleeves 212 of the prefabricated beam 2, and the nuts are locked to achieve connection and support of the steel angle connectors 4 and the prefabricated beams 2; then, the bottom of the precast beam 2 is provided with a point support to ensure the firmness of the precast beam 2, and then, the beam surface ribs 2221 of the precast beam 2 are installed, the two ends of the beam surface ribs 2221 extend to the upper side of the precast column 1 and are connected with the column structural steel bars 13 extending out of the upper side of the precast column 1 in a crisscross manner, and the middle part of the beam surface ribs 2221 is arranged in the stirrups 221 reserved on the precast beam 2 and is connected with the stirrups 221 into a whole to meet the structural design requirements. And the column structural steel bars 13 of the prefabricated columns 1 are higher than the upper surfaces of the prefabricated beams 2 and are connected with the prefabricated columns 1 of the next building layer through an irrigation sleeve process.
4. The precast floor slabs 3 are installed, the bordering supports 31 of the precast floor slabs 3 are lapped on the precast layer 21 of the precast beam 2 (as shown in fig. 11), the width of a floor slab lapping area 211 is not less than 50mm, the distance between the lower parts of the grooves and the tongues of the adjacent precast floor slabs 3 is 50mm, the distance between the upper parts of the grooves and the tongues is not less than 300mm, post-cast strips 5 are arranged at the splicing joints of the adjacent precast floor slabs 3, additional steel bars are placed in the post-cast strips 5, and the precast floor slabs 3 of the whole span are connected into a whole through the post-cast strips. The additional reinforcing steel bars comprise additional structural reinforcing steel bars 51 arranged close to the precast floor slab rabbet platform, additional plate gluten 52 arranged close to the upper surface of the post-cast strip and lifting hook reinforcing steel bars 53 arranged at intervals of 200-600 mm along the length direction of the post-cast strip. The lifting hook steel bar 53 is formed by bending a section of steel bar, two ends of the lifting hook steel bar respectively extend to the inner sides of the rabbet platforms of the adjacent prefabricated floor slabs 3 at the splicing seams, and the middle part of the lifting hook steel bar extends to the lower part of the rabbet to form a U-shaped lifting hook. An additional reinforcement bar 54 is placed over the U-shaped hook of each hook reinforcement bar 53. The two ends of the additional construction steel bar 51, the additional plate gluten 52 and the additional plate bottom bar 54 respectively extend into the cast-in-situ layer of the adjacent precast beam 2.
5. And (3) casting the cast-in-place layer of the precast beam 2, the connecting joint of the precast column 1 and the precast beam 2 and the splicing seam (namely, the post-cast strip 5) of the precast floor slab 3 in situ to complete the installation of the first-layer building structure.
6. And (4) after the first-layer building structure reaches a certain strength, repeating the step 2-5 to install the previous-layer building structure, and repeating the steps until all the building structures on each layer are completely installed.
7. And after the uppermost layer of building structure reaches a certain strength, the steel angle connector 4 is gradually removed from bottom to top.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art can utilize the technical content disclosed above to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical essence of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a full assembled building, includes basis, prefabricated post (1), precast beam (2) and precast floor slab (3), its characterized in that:
the bottom of the prefabricated column is embedded with a grouting sleeve (11), and the upper part of the prefabricated column extends out of a column structural steel bar (13);
the prefabricated beam is a prefabricated superposed beam, the prefabricated superposed beam comprises a prefabricated layer (21), a cast-in-place layer and a steel reinforcement framework (22), and two sides of the prefabricated layer are respectively and integrally prefabricated with a floor slab overlapping area (211) for overlapping the prefabricated floor slab (3);
the prefabricated floor slab comprises a fully prefabricated concrete slab body, slab structural steel bars (33) extend out of the periphery of the slab body respectively, and a junction support (31) which is used for being lapped on the prefabricated layer is integrally prefabricated at the connection part of prefabricated superposed beams of the slab body;
connecting reinforcing steel bars matched with the grouting sleeves at the bottoms of the prefabricated columns are pre-buried on the foundation, and the connecting reinforcing steel bars of the foundation are connected with the grouting sleeves of the prefabricated columns through a grouting sleeve process;
two ends of the precast beam are respectively connected with the precast columns through connecting nodes, and beam gluten and beam structural steel bars of the precast beam respectively extend into the precast columns and are in crisscross connection with the column structural steel bars of the precast columns;
the precast floor slab is lapped on the floor slab lapping area of the precast beam through the lapping support, and the plate construction steel bars of the precast floor slab extend into the cast-in-situ layer of the precast beam and are connected with the stirrups and beam surface steel bars in the cast-in-situ layer in a longitudinal and transverse staggered manner;
the prefabricated floor slabs are mutually spliced to form a whole floor slab of a building structure, the splicing seam sides of adjacent prefabricated floor slabs are symmetrically provided with tongue-and-grooves (32), post-cast strips (5) are arranged between the splicing seam side tongue-and-grooves of the adjacent prefabricated floor slabs, and additional steel bars extending into cast-in-place layers of the adjacent prefabricated beams are placed in the post-cast strips;
and the cast-in-situ layer of the precast beam, the connecting nodes of the precast beam and the precast columns and the post-cast strip are integrally formed by casting concrete in situ.
2. The fully assembled building according to claim 1, wherein the column structural reinforcement of the precast column is higher than the upper surface of the precast beam and is connected with the precast column of the next story building through an irrigation sleeve process.
3. The fully assembled building of claim 1 wherein the lower rebates of adjacent precast floor slabs are spaced apart by 50mm and the upper rebates are spaced apart by no less than 300 mm.
4. A fully fabricated building according to claim 3, wherein the post-cast strip extends to the lower rebate of the adjacent pre-cast floor slab.
5. The fully assembled building of claim 3, wherein the additional steel bars comprise additional construction steel bars (51) arranged close to the grooved platform of the precast floor slab, additional plate steel bars (52) arranged close to the upper surface of the post-cast strip and a plurality of lifting hook steel bars (53) arranged along the length direction of the post-cast strip, each lifting hook steel bar is formed by bending a section of steel bar, two ends of each lifting hook steel bar extend towards the inner sides of the grooved platforms of the first precast floor slab and the second precast floor slab respectively, the middle part of each lifting hook steel bar extends towards the lower part of the groove to form a U-shaped lifting hook, and an additional plate bottom steel bar (54) is arranged on the U-shaped lifting hook of each lifting hook steel bar.
6. The fully assembled building according to claim 5, wherein both ends of the additional construction steel bars (51), additional slab gluten (52) and additional slab bottom bars (54) extend into the cast-in-place layer of the adjacent precast beam (2), respectively.
7. The fully assembled building of claim 5, wherein the hanger bars are spaced at 200-600 mm intervals along the length of the post-cast strip.
8. The fully assembled building of claim 5 wherein the width of the floor slab lap is 50mm-100mm, the width of the bordering pedestal is 50mm-100mm, and the width of the floor slab lap matches the width of the bordering pedestal.
CN202123315961.6U 2021-12-27 2021-12-27 Full-assembly type building Active CN217299267U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123315961.6U CN217299267U (en) 2021-12-27 2021-12-27 Full-assembly type building

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Application Number Priority Date Filing Date Title
CN202123315961.6U CN217299267U (en) 2021-12-27 2021-12-27 Full-assembly type building

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CN217299267U true CN217299267U (en) 2022-08-26

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