CN220738232U - Inside diameter slicer of neodymium iron boron magnetism iron processing - Google Patents
Inside diameter slicer of neodymium iron boron magnetism iron processing Download PDFInfo
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- CN220738232U CN220738232U CN202321931010.8U CN202321931010U CN220738232U CN 220738232 U CN220738232 U CN 220738232U CN 202321931010 U CN202321931010 U CN 202321931010U CN 220738232 U CN220738232 U CN 220738232U
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- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 46
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 6
- 229910052742 iron Inorganic materials 0.000 title description 3
- 230000005389 magnetism Effects 0.000 title description 3
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 40
- 238000007599 discharging Methods 0.000 claims abstract description 34
- 239000003292 glue Substances 0.000 claims abstract description 13
- 238000010009 beating Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000002457 bidirectional effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an inner circle slicing machine for processing a neodymium iron boron magnet, which comprises a slicing machine body and a pre-feeding device arranged on one side of the slicing machine body; the pre-feeding device comprises a frame, a mounting plate, a discharging block, a clamping plate, a linear driving device, a rotary driving device, a glue beating device, a lifting device and a linkage mechanism; the discharging block is arranged in the middle of the mounting plate; the clamping plates are positioned at two sides of the discharging block; the linear driving device is arranged on the mounting plate and connected with the clamping plate to control the clamping plate to be close to the discharging block; the rotary driving device is arranged on the frame and connected with the mounting plate; the gluing device is arranged above the main shaft, and the working direction is downward; the lifting device is arranged above the frame and connected with the gluing device; the two ends of the linkage mechanism are connected with the main shaft and the glue beating device, so that the main shaft and the glue beating device rotate at the same angular speed. The utility model provides a loaded down with trivial details problem of neodymium magnet installation step, reduce the process and improved efficiency.
Description
Technical Field
The utility model relates to the field of slicing of neodymium-iron-boron magnets, in particular to an inner circle slicing machine for processing a neodymium-iron-boron magnet.
Background
When the existing hard and brittle materials such as neodymium iron boron magnet are sliced, a worker is required to put the neodymium magnet into a V-shaped discharging block, press the dropping glue by using a cover plate to bond the neodymium magnet together, then take out the bonded neodymium magnet to be secondarily bonded with a mounting plate, finally mount the mounting rod which is extended after the mounting plate on a workbench, and cut the neodymium magnet in a tool setting way, so that the mounting process is complicated and troublesome, and the glue is possibly damaged to the worker after long-term work.
Disclosure of Invention
To above-mentioned problem, provide the interior circular slicing machine of neodymium iron boron magnetism iron processing, through install a loading attachment in advance on interior circular slicing machine, solved neodymium magnet installation step loaded down with trivial details, reduce the process and improved efficiency.
In order to solve the problems in the prior art, the utility model adopts the technical scheme that;
an inner circle slicing machine for processing neodymium iron boron magnets comprises a slicing machine body and a pre-feeding device arranged on one side of the slicing machine body; the pre-feeding device comprises a frame, a mounting plate, a discharging block, a clamping plate, a linear driving device, a rotary driving device, a glue beating device, a lifting device and a linkage mechanism; the discharging block is arranged in the middle of the mounting plate; the clamping plates are provided with a pair of clamping plates which are positioned at two sides of the discharging block, the clamping plates are abutted against two ends of a neodymium magnet arranged on the discharging block in a working state and limit the connecting plate to the top layer of the neodymium magnet, and the clamping plates are provided with through holes; the linear driving device is horizontally arranged on the mounting plate and connected with the clamping plate to control the clamping plate to be close to or far away from the discharging block; the rotary driving device comprises a main shaft and a rotary driver, the main shaft is rotatably arranged on the frame and connected with the mounting plate, and the rotary driver is fixedly arranged on the frame and connected with the main shaft in a transmission way; the gluing device is arranged above the main shaft, and the working direction is downward; the lifting device is arranged above the frame and connected with the gluing device; the two ends of the linkage mechanism are connected with the main shaft and the glue beating device, so that the main shaft and the glue beating device rotate at the same angular speed.
Preferably, the linkage mechanism comprises a transmission shaft, a bevel gear pair, a gear chain and a rotating seat; the transmission shaft is rotatably arranged on the frame, and the axis of the transmission shaft is perpendicular to the axis of the main shaft; the rotating seat is arranged on the frame in a rotating way, a rotating shaft of the rotating seat is vertically arranged, the gluing device is arranged on the lifting device, and the lifting device is arranged on the rotating seat; two ends of the bevel gear pair are respectively connected with the main shaft and the transmission shaft; the gear chain is connected with the transmission shaft and the rotating seat.
Preferably, the outer wall of the main shaft is provided with a connecting key, the mounting plate is provided with a through hole in clearance fit with the main shaft, and a connecting groove in sliding fit with the connecting key is formed in the through hole; a guide rod is arranged on the frame, one end of the guide rod is fixedly connected with the frame, and the axis of the guide rod is parallel to the axis of the main shaft; one end of the mounting plate is provided with a plug hole, and the axis of the plug hole is parallel to the axis of the through hole; when the mounting plate slides along the axis direction of the main shaft and is far away from the gluing device, the inserting holes are in inserting fit with the guide rods; when the mounting plate slides to a near gluing position along the axis direction of the main shaft, the inserting holes are separated from the guide rods.
Preferably, the frame comprises a limiting assembly; the limiting component is arranged on the frame and comprises a sliding block and a stop block; the frame is provided with a sliding groove which extends along the radial direction of the main shaft, and the sliding block is in sliding connection with the sliding groove; the stop block is fixedly arranged on the sliding block; when the sliding block slides in the sliding groove towards the main shaft direction, the stop block is abutted with one end of the mounting plate.
Preferably, the clamping plate comprises a screen plate and a compression block; the screen plate is arranged on the mounting plate and connected with the linear driving device; an inclined plane is arranged on one side, close to the discharging block, of the compression block, and the compression block is fixedly arranged above the screen plate; when the net plate clamps the neodymium magnet, the inclined surface on the compaction block is abutted with the connecting plate to clamp the connecting plate.
Preferably, the linear actuator means comprises a bi-directional screw; the mounting plate is provided with a containing groove, through holes are formed in the two ends of the containing groove, the bidirectional screw rod is arranged in the containing groove, and the two ends of the bidirectional screw rod are rotationally connected with the through holes; the driving blocks are arranged at the bottoms of the clamping plates, and the driving blocks of a pair of clamping plates are respectively connected with the two ends of the bidirectional screw rod in a threaded manner.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the linkage mechanism is arranged to carry out linkage movement on the discharging block and the gluing device, so that the operation is convenient, the time is saved, and the working efficiency is improved.
2. According to the utility model, the screen plate is arranged to facilitate the gluing device to glue, so that the glue can better bond the workpieces through the holes on the screen plate.
3. According to the utility model, the sliding component arranged on the frame is convenient for the mounting plate to slide out of the working area to clamp the workpiece in the discharging block on the mounting plate, and the operation is simple and convenient.
Drawings
Fig. 1 is a schematic perspective view of a pre-feeding device on an inner circle slicer for processing neodymium iron boron magnets.
Fig. 2 is a left side view of a pre-feeding device on an inner circle slicer for processing neodymium iron boron magnets.
Fig. 3 is a cross-sectional view of A-A in fig. 2 of a pre-feeding device on an inside diameter slicer for processing neodymium iron boron magnets.
Fig. 4 is a schematic perspective view of a frame of a pre-feeding device on an inner circle slicer for processing neodymium iron boron magnets.
Fig. 5 is a schematic diagram of the inside of the frame of the pre-feeding device on the inside diameter slicer for processing the neodymium iron boron magnet.
Fig. 6 is a top view of the spindle of the pre-feeder on an inside diameter slicer for processing neodymium iron boron magnets.
Fig. 7 is a schematic perspective view of a mounting plate of a pre-feeding device on an inner circle slicer for processing neodymium iron boron magnets.
Fig. 8 is a top view of a double-ended screw of a pre-feeding device on an inside diameter slicer for processing neodymium iron boron magnets.
Fig. 9 is a schematic perspective view of a clamping plate of a pre-feeding device on an inner circle slicing machine for processing neodymium iron boron magnets.
Fig. 10 is an enlarged view of part B of fig. 4 of a pre-feeding device on an inside diameter slicer for processing neodymium iron boron magnets.
The reference numerals in the figures are:
1-a pre-feeding device; 2-a frame; 21-a guide bar; 22-a limiting assembly; 221-sliding grooves; 222-a slider; 223-stop; 3-mounting plates; 4-discharging blocks; 5-clamping plates; 51-via holes; 52-mesh plate; 53-a compression block; 54-inclined plane; 6-a linear drive device; 61-a bi-directional screw; 7-a rotary drive; 71-a main shaft; 711-linkage; 712-connecting grooves; 72-a rotary drive; 8-a gluing device; 9-lifting device; 10-linkage mechanism; 101-a transmission shaft; 102-a bevel gear pair; 103-a gear train; 104-rotating the seat; s1-neodymium magnet; s2, connecting a plate.
Detailed Description
The utility model will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the utility model and the specific objects and functions achieved.
Referring to fig. 1-10, the utility model provides an inner circle slicing machine for processing neodymium iron boron magnets, which comprises a slicing machine body and a pre-feeding device 1 arranged on one side of the slicing machine body; the pre-feeding device 1 comprises a frame 2, a mounting plate 3, a discharging block 4, a clamping plate 5, a linear driving device 6, a rotary driving device 7, a glue beating device 8, a lifting device 9 and a linkage mechanism 10; the discharging block 4 is arranged in the middle of the mounting plate 3; the clamping plates 5 are provided with a pair of clamping plates which are positioned at two sides of the discharging block 4, the clamping plates 5 are abutted against two ends of a neodymium magnet arranged on the discharging block 4 in a working state and limit the connecting plate on the top layer of the neodymium magnet, and the clamping plates 5 are provided with through holes 51; the linear driving device 6 is horizontally arranged on the mounting plate 3 and connected with the clamping plate 5 to control the clamping plate 5 to be close to or far away from the discharging block 4; the rotary driving device 7 comprises a main shaft 71 and a rotary driver 72, wherein the main shaft 71 is rotatably arranged on the frame 2 and connected with the mounting plate 3, and the rotary driver 72 is fixedly arranged on the frame 2 and is in transmission connection with the main shaft 71; the gluing device 8 is positioned above the main shaft 71 and has a working direction facing downwards; the lifting device 9 is arranged above the frame 2 and connected with the gluing device 8; the two ends of the linkage mechanism 10 are connected with the main shaft 71 and the gluing device 8, so that the main shaft 71 and the gluing device 8 rotate at the same angular speed.
The pre-feeding device 1 is a device for gluing workpieces and bonding the workpieces and a connecting plate together, the workpieces are rapidly fed into a dicing machine, the workpieces are placed into a discharging block 4 and are covered by the connecting plate, clamping plates 5 on two sides of the discharging plate clamp the discharging block 4 and the connecting plate under a linear driving device 6, a rotary driving device 7 is divided into a rotary driver 72 and a main shaft 71, the rotary driver 72 controls the main shaft 71 to rotate so as to drive the main shaft 71 to rotate the discharging block 4, a lifting device 9 controls a gluing device 8 to move downwards, the gluing device 8 carries out gluing on the contact points of the workpieces and the connecting plate through a through hole 51 formed in the clamping plates 5, the gluing device 8 moves upwards to reset after the gluing, the main shaft 71 rotates so as to drive the discharging block 4 to rotate, meanwhile, the gluing device 8 is driven to synchronously rotate to align with the discharging block 4 under the transmission of a linkage mechanism 10, the workers take down the workpieces for standby after the gluing is finished.
Referring to fig. 1, 3 and 5; the linkage mechanism 10 comprises a transmission shaft 101, a bevel gear pair 102, a gear chain 103 and a rotating seat 104; the transmission shaft 101 is rotatably arranged on the frame 2, and the axis of the transmission shaft 101 is perpendicular to the axis of the main shaft 71; the rotating seat 104 is rotatably arranged on the frame 2, the rotating shaft of the rotating seat 104 is vertically arranged, the gluing device 8 is arranged on the lifting device 9, and the lifting device 9 is arranged on the rotating seat 104; two ends of the bevel gear pair 102 are respectively connected with the main shaft 71 and the transmission shaft 101; the gear chain 103 connects the drive shaft 101 and the rotary base 104.
The horizontal rotation of the main shaft 71 drives the transmission shaft 101 to vertically rotate through the bevel gear pair 102, the transmission shaft 101 drives the rotating seat 104 to rotate through the gear chain 103, the lifting device 9 is fixedly connected with the rotating seat 104, specifically, the lifting device 9 is a lifting seat driven by a hydraulic cylinder, the gluing device 8 is arranged on the lifting seat so as to rotate together with the rotation of the rotating seat 104, and the transmission ratio between the bevel gear pair 102 and the gear chain 103 is 1:1, so that the rotational angular speeds of the main shaft 71 and the gluing device 8 are the same.
Referring to fig. 4, 5, 6 and 7: the outer wall of the main shaft 71 is provided with a connecting key 711, the mounting plate 3 is provided with a through hole in clearance fit with the main shaft 71, and a connecting groove 712 in sliding fit with the connecting key 711 is arranged in the through hole; a guide rod 21 is arranged on the frame 2, one end of the guide rod 21 is fixedly connected with the frame 2, and the axis of the guide rod 21 is parallel to the axis of the main shaft 71; one end of the mounting plate 3 is provided with a plug hole, and the axis of the plug hole is parallel to the axis of the through hole; when the mounting plate 3 slides along the axial direction of the main shaft 71 and is far away from the gluing device 8, the inserting holes are in inserting fit with the guide rods 21; when the mounting plate 3 slides along the axial direction of the main shaft 71 to the near-gluing position, the insertion hole is separated from the guide rod 21.
When the mounting plate 3 is slid to the gluing position, the connecting key 711 on the main shaft 71 is in sliding fit with the connecting groove 712 on the mounting plate 3, the mounting plate 3 is driven to rotate and then glue, the inserting holes formed in the mounting plate 3 are in inserting fit with the guide rods 21 on the frame 2 when the mounting plate 3 is far away from the gluing position, so that the rotation of the mounting plate 3 on the main shaft 71 is limited, the discharging block 4 on the mounting plate 3 is conveniently clamped, and the gluing position is the position of the gluing device 8 for the neodymium magnet gluing operation.
Referring to fig. 1, 4, 5 and 10: the frame 2 comprises a limiting assembly 22; the limiting component 22 is arranged on the frame 2 and comprises a sliding block 222 and a stop block 223; the frame 2 is provided with a sliding groove 221, the sliding groove 221 extends along the radial direction of the main shaft 71, and a sliding block 222 is in sliding connection with the sliding groove 221; the stop 223 is fixedly mounted on the slide block 222; when the slider 222 slides in the slide groove 221 in the main shaft 71 direction, the stopper 223 abuts against one end of the mounting plate 3.
When the mounting plate 3 slides to the gluing position, the mounting plate 3 is limited by the limiting component 22, the sliding block 222 slides in the sliding groove 221 and drives the stop block 223 to slide, and the stop block 223 is abutted with one end of the mounting plate 3, so that the movement of the mounting plate 3 is limited.
Referring to fig. 5 and 9: the clamping plate 5 comprises a screen plate 52 and a compression block 53; the screen plate 52 is arranged on the mounting plate 3 and is connected with the linear driving device 6; an inclined surface 54 is arranged on one side, close to the discharging block 4, of the compacting block 53, and the compacting block 53 is fixedly arranged above the screen plate 52; when the net plate 52 clamps the neodymium magnet, the inclined surface 54 on the pressing block 53 is abutted with the connecting plate to clamp the connecting plate.
The linear driving device 6 drives the screen plate 52 to clamp the two ends of the neodymium magnet, the pressing block 53 fixedly connected with the upper side of the screen plate 52 is provided with the inclined surface 54, the inclined surface 54 is arranged on one side close to the neodymium magnet, and when in clamping, the inclined surface 54 is abutted with the connecting plate above the neodymium magnet, so that the connecting plate is always attached to the neodymium magnet.
Referring to fig. 5 and 8: the linear actuator means comprises a bi-directional screw 61; the mounting plate 3 is provided with a containing groove, two ends of the containing groove are provided with through holes, the bidirectional screw 61 is arranged in the containing groove, and two ends of the bidirectional screw 61 are rotationally connected with the through holes; the bottom of the clamping plate 5 is provided with a driving block, and the driving blocks of a pair of clamping plates 5 are respectively connected with two ends of a bidirectional screw 61 in a threaded manner.
The driving block is provided with a nut, the driving block is in threaded connection with the bidirectional screw rod through the nut, the bidirectional screw rod 61 is rotated through a wrench, a pair of clamping plates 5 on the bidirectional screw rod 61 are driven to move towards opposite directions simultaneously, the discharging block 4 is clamped and loosened, and the bidirectional screw rod 61 is driven to rotate in other modes, so that the prior art is omitted. The driving block is provided with a nut which is in threaded connection with the bidirectional screw rod.
The foregoing examples merely illustrate one or more embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. An inner circle slicing machine for processing neodymium iron boron magnets comprises a slicing machine body and a pre-feeding device (1) arranged on one side of the slicing machine body;
the pre-feeding device (1) is characterized by comprising a frame (2), a mounting plate (3), a discharging block (4), a clamping plate (5), a linear driving device (6), a rotary driving device (7), a glue beating device (8), a lifting device (9) and a linkage mechanism (10);
the discharging block (4) is arranged in the middle of the mounting plate (3); the clamping plates (5) are provided with a pair and are positioned at two sides of the discharging block (4), the clamping plates (5) are abutted against two ends of a neodymium magnet (S1) arranged on the discharging block (4) in a working state, the connecting plate (S2) is limited on the top layer of the neodymium magnet (S1), and the clamping plates (5) are provided with through holes (51); the linear driving device (6) is horizontally arranged on the mounting plate (3) and is connected with the clamping plate (5) to control the clamping plate (5) to be close to or far away from the discharging block (4); the rotary driving device (7) comprises a main shaft (71) and a rotary driver (72), wherein the main shaft (71) is rotatably arranged on the frame (2) and is connected with the mounting plate (3), and the rotary driver (72) is fixedly arranged on the frame (2) and is in transmission connection with the main shaft (71); the gluing device (8) is positioned above the main shaft (71) and the working direction is downward; the lifting device (9) is arranged above the frame (2) and is connected with the gluing device (8); the two ends of the linkage mechanism (10) are connected with the main shaft (71) and the gluing device (8), so that the main shaft (71) and the gluing device (8) rotate at the same angular speed.
2. The inside diameter slicer for processing neodymium iron boron magnet according to claim 1, wherein the linkage mechanism (10) comprises a transmission shaft (101), a bevel gear pair (102), a gear chain (103) and a rotating seat (104);
the transmission shaft (101) is rotatably arranged on the frame (2), and the axis of the transmission shaft (101) is perpendicular to the axis of the main shaft (71); the rotating seat (104) is rotatably arranged on the frame (2), a rotating shaft of the rotating seat (104) is vertically arranged, the gluing device (8) is arranged on the lifting device (9), and the lifting device (9) is arranged on the rotating seat (104); two ends of the bevel gear pair (102) are respectively connected with the main shaft (71) and the transmission shaft (101); the gear chain (103) is connected with the transmission shaft (101) and the rotating seat (104).
3. The inside diameter slicer for processing the neodymium iron boron magnet according to claim 1, wherein the outer wall of the main shaft (71) is provided with a connecting key (711), the mounting plate (3) is provided with a through hole which is in clearance fit with the main shaft (71), and the through hole is internally provided with a connecting groove (712) which is in sliding fit with the connecting key (711);
a guide rod (21) is arranged on the frame (2), one end of the guide rod (21) is fixedly connected with the frame (2), and the axis of the guide rod (21) is parallel to the axis of the main shaft (71);
one end of the mounting plate (3) is provided with a plug hole, and the axis of the plug hole is parallel to the axis of the through hole;
when the mounting plate (3) slides along the axial direction of the main shaft (71) and is far away from the gluing device (8), the inserting holes are in inserting fit with the guide rods (21); when the mounting plate (3) slides to a near gluing position along the axial direction of the main shaft (71), the inserting hole is separated from the guide rod (21).
4. An inside diameter slicer for processing neodymium iron boron magnet according to claim 1, wherein the frame (2) comprises a limit component (22);
the limiting component (22) is arranged on the frame (2) and comprises a sliding block (222) and a stop block (223); a sliding groove (221) is formed in the frame (2), the sliding groove (221) extends along the radial direction of the main shaft (71), and a sliding block (222) is connected with the sliding groove (221) in a sliding manner; the stop block (223) is fixedly arranged on the sliding block (222); when the slider (222) slides in the chute (221) in the direction of the main shaft (71), the stopper (223) abuts against one end of the mounting plate (3).
5. An inside diameter slicer for processing neodymium iron boron magnet according to claim 1, wherein the clamping plate (5) comprises a net plate (52) and a pressing block (53);
the screen plate (52) is arranged on the mounting plate (3) and is connected with the linear driving device (6);
an inclined surface (54) is arranged on one side, close to the discharging block (4), of the compacting block (53), and the compacting block (53) is fixedly arranged above the screen plate (52);
when the net plate (52) clamps the neodymium magnet (S1), the inclined surface (54) on the pressing block (53) is abutted with the connecting plate (S2) to clamp the connecting plate (S2).
6. An inside diameter slicer for processing a neodymium iron boron magnet according to claim 1, wherein the linear driver means comprises a bi-directional screw (61);
the mounting plate (3) is provided with a containing groove, two ends of the containing groove are provided with through holes, the bidirectional screw rod (61) is arranged in the containing groove, and two ends of the bidirectional screw rod (61) are rotationally connected with the through holes;
the bottom of the clamping plates (5) is provided with driving blocks, and the driving blocks of a pair of clamping plates (5) are respectively connected with two ends of the bidirectional screw rod (61) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321931010.8U CN220738232U (en) | 2023-07-21 | 2023-07-21 | Inside diameter slicer of neodymium iron boron magnetism iron processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321931010.8U CN220738232U (en) | 2023-07-21 | 2023-07-21 | Inside diameter slicer of neodymium iron boron magnetism iron processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220738232U true CN220738232U (en) | 2024-04-09 |
Family
ID=90550439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321931010.8U Active CN220738232U (en) | 2023-07-21 | 2023-07-21 | Inside diameter slicer of neodymium iron boron magnetism iron processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220738232U (en) |
-
2023
- 2023-07-21 CN CN202321931010.8U patent/CN220738232U/en active Active
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