CN218779661U - Scalable disjunctor steel construction - Google Patents
Scalable disjunctor steel construction Download PDFInfo
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- CN218779661U CN218779661U CN202223144988.8U CN202223144988U CN218779661U CN 218779661 U CN218779661 U CN 218779661U CN 202223144988 U CN202223144988 U CN 202223144988U CN 218779661 U CN218779661 U CN 218779661U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a telescopic conjoined steel structure, relating to the technical field of conjoined steel structures and comprising a connecting beam, a reinforcing unit, a telescopic protection unit and a telescopic transmission unit; the bottom surface of the connecting beam is fixedly connected with the top of the upright column, the mounting groove in the middle of the right side of the connecting beam is sleeved with the left end of the fixing seat, the left end of the fixing seat is connected with the connecting beam through a fixing pin, the right end of the fixing seat is fixedly connected with the left ends of the two sliding beams, and the two sliding beams are respectively and transversely connected with the two sliding through grooves in the side surfaces of the sliding beams in a sliding manner; the reinforcing units are arranged at the front side, the rear side and the bottom of the fixed seat; the telescopic transmission unit comprises a transverse bearing, a transverse control column, a transverse connecting shaft and a screw rod, and the middle part of the fixed seat is rotatably connected with the left end of the screw rod through the transverse bearing; the telescopic protection unit: the fixed sleeve is connected with the right end of the fixed seat. This scalable disjunctor steel construction, the equipment is convenient, and the bulk strength is high, and applicable environment is wide, and flexible process is more stable moreover.
Description
Technical Field
The utility model relates to a disjunctor steel construction technical field specifically is a scalable disjunctor steel construction.
Background
In recent years, with the development of engineering technology, the forms of high-rise buildings are increasingly diversified, and the conjoined steel structure is favored by architects due to the ambitious vigor and modernization;
the upper surface of the base is fixedly connected with a support column, the top end of the support column is fixedly connected with an installation beam plate, the opposite surfaces of the left installation beam plate and the right installation beam plate are provided with the same sleeve plate, the inner wall of the sleeve plate is respectively connected with a first sliding plate and a second sliding plate in a sliding manner, and the upper surfaces of the first sliding plate, the second sliding plate and the installation beam plate are all provided with the same small hole;
the sliding plates are adopted during expansion, the connection of the sliding plates is unstable, the structural rigidity of the joints is insufficient, and the structure is complex and is not easy to install.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a scalable disjunctor steel construction, use the flexible length of screw rod adjustment, length is fixed after can stabilizing adjustment and adjustment, and supports gliding sliding beam through the sliding beam, and the multiple department adopts the joint structure to realize fixing, therefore makes things convenient for the dismouting, and junction structural rigidity is enough, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a telescopic conjoined steel structure comprises a connecting beam, a reinforcing unit, a telescopic protection unit and a telescopic transmission unit;
connecting the beams: the bottom surface is fixedly connected with the top of the upright column, the mounting groove in the middle of the right side of the connecting beam is sleeved with the left end of the fixing seat, the left end of the fixing seat is connected with the connecting beam through a fixing pin, the right end of the fixing seat is fixedly connected with the left ends of the two sliding beams, and the two sliding beams are respectively and transversely and slidably connected with the two sliding through grooves in the side surface of the sliding beam;
a reinforcing unit: are arranged at the front side, the rear side and the bottom of the fixed seat;
the telescopic transmission unit: the middle part of the fixed seat is rotatably connected with the left end of the screw rod through the transverse bearing, the right end of the screw rod is in threaded connection with a screw hole in the middle part of the sliding beam, the left end of the screw rod is fixedly connected with the right end of the transverse control column through the transverse connecting shaft, and the left end surface of the transverse control column is provided with a hexagonal groove;
the telescopic protection unit: the fixed sleeve is connected with the right end of the fixed seat.
The tie-beam is used for realizing quick fixed connection, the stand is used for supporting whole framework, the mounting groove of accessible tie-beam bottom and the realization quick fixed connection of stand top surface, the mounting groove on the right side of accessible tie-beam and the fixed pin of fixing base left end realize quick fixed connection fixing base, the slip beam is used for connecting fixing base and sliding beam, restriction sliding beam's moving direction, the reinforcement unit can be used to strengthen the joint strength of tie-beam and fixing base and stand, can facilitate the use spanner through the hexagonal groove and rotate the transverse control post, the transverse control post drives the screw rod through the transverse connection axle and rotates, transverse bearing is convenient for the screw rod and steadily rotates for the fixing base, the screw rod drives sliding beam through the screw thread effect with sliding beam and moves about along the slip beam is horizontal, thereby realize the flexible adjustment to disjunctor connected steel structure.
Further, flexible protection unit includes lag, vertical strengthening rib, horizontal strengthening rib and positioning bolt, the fixed right-hand member at the fixing base that cup joints of lag, the lag slides and cup joints the left end at sliding beam, vertical strengthening rib setting and lag periphery side, horizontal strengthening rib setting is just with the crisscross distribution of vertical strengthening rib at lag periphery side, threaded connection has positioning bolt in the both ends screw of lag respectively, and left positioning bolt bottom supports the top surface of fixing base, and the positioning bolt bottom on right side supports sliding beam's top surface.
There is the lag to be used for protecting inner structure, promotes fixing base and sliding beam's vertical atress intensity simultaneously, and the crisscross vertical strengthening rib and the horizontal strengthening rib that distribute in its surface are used for consolidating the lag structure, and the left end of lag is with two positioning bolt fixed connection in the fixing base, and the other end uses two other positioning bolt fixed connection in sliding beam for fixed sliding beam's position also provides the support for sliding beam simultaneously.
Furthermore, the telescopic transmission unit further comprises a longitudinal bearing, a longitudinal control column, a longitudinal connecting shaft, a driving bevel gear and a driven bevel gear, the middle of the top surface of the protective sleeve is rotatably connected with the longitudinal connecting shaft through the longitudinal bearing, the top of the longitudinal connecting shaft is fixedly connected with the bottom of the longitudinal control column, a hexagonal groove is formed in the top surface of the longitudinal control column, the bottom of the longitudinal connecting shaft is fixedly connected with the driving bevel gear, the screw rod is fixedly sleeved with the driven bevel gear, and the driven bevel gear is meshed with the driving bevel gear.
The connecting shaft is used for connecting the longitudinal control column and the driving bevel gear, the longitudinal bearing is used for enabling the longitudinal connecting shaft to rotate more easily when the driving bevel gear rotates in a meshed mode, the driven bevel gear is used for driving the screw rod to rotate together when the driven bevel gear rotates in a meshed mode with the driving bevel gear, and the longitudinal control column is used for still being capable of executing telescopic operation when the transverse control column cannot be used.
Further, it contains horizontal back up beam, horizontal mounting bracket and joint post to consolidate the unit, the horizontal mounting bracket of fixedly connected with respectively is held to the right side front and back end of tie-beam, the horizontal mounting bracket of fixedly connected with is also held respectively to the front and back side of fixing base, the both ends bottom of horizontal back up beam is fixedly connected with joint post respectively, the joint post at horizontal back up beam both ends respectively with the horizontal mounting bracket on the tie-beam and the horizontal mounting bracket joint on the fixing base.
The transverse reinforcing beam is used for reinforcing a horizontal structure between the fixing seat and the connecting beam, the transverse mounting frame is used for connecting and supporting the transverse reinforcing beam, and the clamping column is used for quickly positioning and mounting the transverse reinforcing beam and the transverse mounting frame, so that the whole transverse reinforcing assembly can be quickly and firmly clamped
Further, the reinforcing unit still contains vertical reinforcing beam, lower bearing seat, goes up bearing seat and connecting block, bearing seat under the right side middle part fixed connection of stand, the bottom fixedly connected with of fixing base goes up bearing seat, two connecting blocks of both ends difference fixedly connected with of vertical reinforcing beam, two connecting blocks respectively with lower bearing seat and last bearing seat joint.
The vertical reinforcing beam is used for supporting and reinforcing a vertical structure between the fixed seat and the stand column, the lower bearing seat is used for dispersing pressure on the stand column through the supporting vertical reinforcing beam, the upper bearing seat is used for concentrating the pressure of the fixed seat on the supporting vertical reinforcing beam, and the connecting blocks at the two ends of the vertical reinforcing beam are used for being fast clamped with the upper bearing seat and the lower bearing seat, so that the whole vertical reinforcing assembly can be rapidly assembled and finished
The four side surfaces of the top of the upright post are respectively fixedly connected with a ribbed plate, and the top of the ribbed plate is fixedly connected with the bottom surface of the connecting beam.
The ribbed slab is used for strengthening the structural strength between the connecting beam and the upright post, three ribbed slabs are respectively arranged on the left side and the right side, and a ribbed slab is respectively arranged on the front side and the rear side.
Compared with the prior art, the beneficial effects of the utility model are that: this scalable disjunctor steel construction has following benefit:
1. the components of the clamping structure are adopted at multiple positions of the reinforcing unit, the effect of quickly positioning the reinforcing beam is achieved through the corresponding relation among the mounting frame, the mounting seat and the clamping columns, and the clamping columns are inserted into the mounting frame to achieve quick assembly of the reinforcing unit
2. The telescopic transmission unit is driven by a screw rod, the screw rod is driven to rotate by rotating the control column, the sliding beam is driven by the screw rod through the screw thread action with the sliding beam through the rotation of the screw rod, the telescopic process is more stable, the operation is simpler, the positioning is more accurate, a longitudinal transmission assembly is added, the structure can operate under various contextual conditions conveniently,
3. this scalable disjunctor steel construction, it is convenient to assemble, and the bulk strength is high, and applicable environment is wide, and flexible process is more stable moreover
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom structure diagram of the present invention;
FIG. 3 is a schematic view of the rear side structure of the present invention;
fig. 4 is a schematic view of the internal structure of the present invention.
In the figure: the device comprises a vertical column 1, a connecting beam 2, a fixed seat 3, a sliding cross beam 4, a transverse reinforcing beam 51, a transverse mounting frame 52, a clamping column 53, a longitudinal reinforcing beam 54, a lower bearing seat 55, an upper bearing seat 56, a connecting block 57, a protective sleeve 61, a longitudinal reinforcing rib 62, a transverse reinforcing rib 63, a positioning bolt 64, a longitudinal bearing 71, a longitudinal control column 72, a transverse bearing 73, a transverse control column 74, a transverse connecting shaft 75, a longitudinal connecting shaft 76, a driving bevel gear 77, a driven bevel gear 78, a screw 79, a sliding beam 8, a fixing pin 9 and a ribbed plate 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present embodiment provides a technical solution: a telescopic conjoined steel structure comprises a connecting beam 2, a reinforcing unit 5, a telescopic protection unit 6 and a telescopic transmission unit 7;
the connecting beam 2: the bottom surface is fixedly connected with the top of the upright post 1, the mounting groove in the middle of the right side of the connecting beam 2 is sleeved with the left end of the fixed seat 3, the left end of the fixed seat 3 is connected with the connecting beam 2 through a fixed pin 9, the right end of the fixed seat 3 is fixedly connected with the left ends of the two sliding beams 8, and the two sliding beams 8 are respectively and transversely slidably connected with the two sliding through grooves in the side surface of the sliding beam 4;
the reinforcing unit 5: is arranged at the front side, the rear side and the bottom of the fixed seat 3;
the telescopic transmission unit 7: the middle part of the fixed seat 3 is rotatably connected with the left end of the screw rod 79 through the transverse bearing 73, the right end of the screw rod 79 is in threaded connection with a screw hole in the middle part of the sliding cross beam 4, the left end of the screw rod 79 is fixedly connected with the right end of the transverse control column 74 through the transverse connecting shaft 75, and the left end surface of the transverse control column 74 is provided with a hexagonal groove;
the telescopic protection unit 6: fixedly sleeved at the right end of the fixed seat 3.
Connecting beam 2 is used for realizing quick fixed connection, stand 1 is used for supporting whole framework, the mounting groove of 2 bottoms of accessible connecting beam and the realization quick fixed connection of 1 top surfaces of stand, the mounting groove on the right side of accessible connecting beam 2 and the fixed pin 9 of 3 left ends of fixing base realize quick fixed connection fixing base 3, sliding beam 8 is used for connecting fixing base 3 and sliding beam 4, restriction sliding beam 4's moving direction, it can be used to strengthen connecting beam 2 and fixing base 3 and stand 1's joint strength to consolidate unit 5, can conveniently use the spanner to rotate transverse control post 74 through the hexagonal groove, transverse control post 74 drives screw rod 79 through transverse connection axle 75 and rotates, transverse bearing 73 is convenient for screw rod 79 and steadily rotates for fixing base 3, screw rod 79 drives sliding beam 4 through the screw thread effect with sliding beam 4 and moves about along sliding beam 8 is horizontal, thereby realize the flexible adjustment to disjunctor conjoined steel construction.
There is lag 61 to be used for protecting inner structure, promotes fixing base 3 and sliding beam 4's vertical atress intensity simultaneously, and the crisscross vertical strengthening rib 62 and the horizontal strengthening rib 63 that distribute in its surface are used for consolidating lag 61 structure, and lag 61's left end uses two positioning bolt 64 fixed connection in fixing base 3, and the other end uses two other positioning bolt 64 fixed connection in sliding beam 4 for fixed sliding beam 4's position also provides the support for sliding beam 4 simultaneously.
The telescopic transmission unit 7 further comprises a longitudinal bearing 71, a longitudinal control column 72, a longitudinal connecting shaft 76, a driving bevel gear 77 and a driven bevel gear 78, the middle of the top surface of the protective sleeve 61 is rotatably connected with the longitudinal connecting shaft 76 through the longitudinal bearing 71, the top of the longitudinal connecting shaft 76 is fixedly connected with the bottom of the longitudinal control column 72, a hexagonal groove is formed in the top surface of the longitudinal control column 72, the bottom end of the longitudinal connecting shaft 76 is fixedly connected with the driving bevel gear 77, the screw 79 is fixedly sleeved with the driven bevel gear 78, and the driven bevel gear 78 is meshed with the driving bevel gear 77.
The connecting shaft 76 is used for connecting the longitudinal control column 72 with the driving bevel gear 77, the longitudinal bearing 71 is used for enabling the connecting shaft 76 to rotate more easily when the driving bevel gear 77 rotates in an engaged mode, the driven bevel gear 78 is used for driving the screw rod 79 to rotate together when the driven bevel gear 77 rotates in an engaged mode, and the longitudinal control column 72 is used for still being capable of performing telescopic operation when the transverse control column 74 cannot be used.
Consolidate unit 5 and contain horizontal reinforcement roof beam 51, horizontal mounting bracket 52 and joint post 53, the horizontal mounting bracket 52 of fixedly connected with respectively is held to the right side front and back end of tie-beam 2, the horizontal mounting bracket 52 of fixedly connected with respectively is also held to the side around fixing base 3, the both ends bottom of horizontal reinforcement roof beam 51 fixedly connected with joint post 53 respectively, the joint post 53 at horizontal reinforcement roof beam 51 both ends respectively with the horizontal mounting bracket 52 on the tie-beam 2 and the horizontal mounting bracket 52 joint on the fixing base 3.
The transverse reinforcing beam 51 is used for reinforcing a horizontal structure between the fixing seat 3 and the connecting beam 2, the transverse mounting frame 52 is used for connecting and supporting the transverse reinforcing beam 51, and the clamping column 53 is used for quickly positioning and mounting the transverse reinforcing beam 51 and the transverse mounting frame 52, so that the whole transverse reinforcing assembly can be quickly and firmly clamped
The reinforcing unit 5 further comprises a longitudinal reinforcing beam 54, a lower bearing seat 55, an upper bearing seat 56 and connecting blocks 57, the middle part of the right side of the upright post 1 is fixedly connected with the lower bearing seat 55, the bottom of the fixing seat 3 is fixedly connected with the upper bearing seat 56, two ends of the longitudinal reinforcing beam 54 are respectively and fixedly connected with the two connecting blocks 57, and the two connecting blocks 57 are respectively clamped with the lower bearing seat 55 and the upper bearing seat 56.
The longitudinal reinforcing beam 54 is used for supporting and reinforcing a vertical structure between the fixed seat 3 and the upright post 1, the lower bearing seat 55 is used for dispersing pressure on the upright post 1 through the supporting longitudinal reinforcing beam 54, the upper bearing seat 56 is used for concentrating the pressure of the fixed seat 3 on the supporting longitudinal reinforcing beam 54, and the connecting blocks 57 at two ends of the longitudinal reinforcing beam 54 are used for being rapidly clamped with the upper bearing seat 56 and the lower bearing seat 55, so that the whole longitudinal reinforcing assembly can be rapidly assembled and finished
The novel vertical column is characterized by further comprising a ribbed plate 10, the ribbed plate 10 is fixedly connected to four side faces of the top of the vertical column 1 respectively, and the top of the ribbed plate 10 is fixedly connected with the bottom face of the connecting beam 2.
The rib plates 10 are used for reinforcing the structural strength between the connecting beam 2 and the upright 1, three rib plates 10 are respectively arranged at the left side and the right side, and one rib plate 10 is respectively arranged at the front side and the rear side.
The utility model provides a pair of scalable disjunctor steel construction's theory of operation as follows:
the transverse control column 74 is rotated to drive the transverse connecting shaft 75 to rotate, the screw 79 is driven to rotate through the transverse connecting shaft 75, the transverse bearing 73 facilitates the screw 79 to stably rotate relative to the fixed seat 3, the screw 79 drives the sliding beam 4 to transversely move left and right along the sliding beam 8 through the thread action with the sliding beam 4, and therefore the telescopic adjustment of the connected steel structure is achieved;
when the transverse control column 74 cannot be used, the longitudinal control column 72 is rotated to drive the longitudinal connecting shaft 76 to rotate, the longitudinal connecting shaft 76 rotates to drive the driving bevel gear 77 connected with the longitudinal connecting shaft 76 to rotate, the longitudinal bearing 71 enables the connecting shaft 76 to rotate more easily when the driving bevel gear 77 rotates in a meshed mode, the driven bevel gear 78 and the driving bevel gear 77 rotate together by driving the screw rod 79, the screw rod 79 drives the sliding beam 4 to move left and right transversely along the sliding beam 8 through the thread effect of the sliding beam 4, and the telescopic operation can still be executed.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a scalable disjunctor steel construction which characterized in that: comprises a connecting beam (2), a reinforcing unit (5), a telescopic protection unit (6) and a telescopic transmission unit (7);
connecting beam (2): the bottom surface of the upright post (1) is fixedly connected with the top of the upright post, a mounting groove in the middle of the right side of the connecting beam (2) is sleeved with the left end of the fixed seat (3), the left end of the fixed seat (3) is connected with the connecting beam (2) through a fixed pin (9), the right end of the fixed seat (3) is fixedly connected with the left ends of two sliding beams (8), and the two sliding beams (8) are respectively and transversely and slidably connected with two sliding through grooves in the side surface of the sliding beam (4);
reinforcement unit (5): is arranged at the front side, the rear side and the bottom of the fixed seat (3);
telescopic transmission unit (7): the device comprises a transverse bearing (73), a transverse control column (74), a transverse connecting shaft (75) and a screw rod (79), wherein the middle part of a fixed seat (3) is rotatably connected with the left end of the screw rod (79) through the transverse bearing (73), the right end of the screw rod (79) is in threaded connection with a screw hole in the middle part of a sliding cross beam (4), the left end of the screw rod (79) is fixedly connected with the right end of the transverse control column (74) through the transverse connecting shaft (75), and the left end surface of the transverse control column (74) is provided with a hexagonal groove;
a telescopic protection unit (6): is fixedly sleeved at the right end of the fixed seat (3).
2. The scalable disjunctor steel construction of claim 1, characterized in that: flexible protection unit (6) include lag (61), vertical strengthening rib (62), horizontal strengthening rib (63) and positioning bolt (64), lag (61) are fixed to be cup jointed at the right-hand member of fixing base (3), lag (61) slip cup joint the left end at sliding beam (4), vertical strengthening rib (62) set up and lag (61) periphery side, horizontal strengthening rib (63) set up lag (61) periphery side and with vertical strengthening rib (62) crisscross distribution, threaded connection has positioning bolt (64) respectively in the both ends screw of lag (61), and left positioning bolt (64) bottom supports the top surface of fixing base (3), and positioning bolt (64) bottom on right side supports the top surface of sliding beam (4).
3. The scalable disjunctor steel construction of claim 2, characterized in that: the telescopic transmission unit (7) further comprises a longitudinal bearing (71), a longitudinal control column (72), a longitudinal connecting shaft (76), a driving bevel gear (77) and a driven bevel gear (78), the middle of the top surface of the protective sleeve (61) is rotatably connected with the longitudinal connecting shaft (76) through the longitudinal bearing (71), the top of the longitudinal connecting shaft (76) is fixedly connected with the bottom of the longitudinal control column (72), a hexagonal groove is formed in the top surface of the longitudinal control column (72), the bottom of the longitudinal connecting shaft (76) is fixedly connected with the driving bevel gear (77), the driven bevel gear (78) is fixedly sleeved on the screw rod (79), and the driven bevel gear (78) is meshed with the driving bevel gear (77).
4. The scalable disjunctor steel construction of claim 1, characterized in that: consolidate unit (5) and contain horizontal reinforcement roof beam (51), horizontal mounting bracket (52) and joint post (53), the horizontal mounting bracket of right side front and back end difference fixedly connected with (52) of tie-beam (2), the horizontal mounting bracket of fixedly connected with (52) is also distinguished to the side around fixing base (3), the both ends bottom difference fixedly connected with joint post (53) of horizontal reinforcement roof beam (51), the joint post (53) at horizontal reinforcement roof beam (51) both ends respectively with horizontal mounting bracket (52) on tie-beam (2) and horizontal mounting bracket (52) joint on fixing base (3).
5. The scalable disjunctor steel construction of claim 4, characterized in that: consolidate unit (5) and still contain vertical reinforcement roof beam (54), lower bearing seat (55), go up bearing seat (56) and connecting block (57), bearing seat (55) under the right side middle part fixed connection of stand (1), bearing seat (56) are gone up to the bottom fixedly connected with of fixing base (3), two connecting blocks (57) of fixedly connected with are distinguished at the both ends of vertical reinforcement roof beam (54), and two connecting blocks (57) are respectively with lower bearing seat (55) and last bearing seat (56) joint.
6. The scalable disjunctor steel construction of claim 1, characterized in that: the novel connecting structure is characterized by further comprising rib plates (10), wherein the rib plates (10) are fixedly connected to four side faces of the top of the upright post (1) respectively, and the top of each rib plate (10) is fixedly connected with the bottom face of the connecting beam (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223144988.8U CN218779661U (en) | 2022-11-25 | 2022-11-25 | Scalable disjunctor steel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223144988.8U CN218779661U (en) | 2022-11-25 | 2022-11-25 | Scalable disjunctor steel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218779661U true CN218779661U (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223144988.8U Active CN218779661U (en) | 2022-11-25 | 2022-11-25 | Scalable disjunctor steel construction |
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| CN (1) | CN218779661U (en) |
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- 2022-11-25 CN CN202223144988.8U patent/CN218779661U/en active Active
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