CN220128731U - Turnover auxiliary clamping tool for machining mechanical parts - Google Patents
Turnover auxiliary clamping tool for machining mechanical parts Download PDFInfo
- Publication number
- CN220128731U CN220128731U CN202321689266.2U CN202321689266U CN220128731U CN 220128731 U CN220128731 U CN 220128731U CN 202321689266 U CN202321689266 U CN 202321689266U CN 220128731 U CN220128731 U CN 220128731U
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- plate
- movable
- fixed
- clamping tool
- mechanical parts
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- 238000003754 machining Methods 0.000 title claims abstract description 17
- 230000007306 turnover Effects 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model provides a turnover auxiliary clamping tool for machining mechanical parts, which comprises a workbench, wherein a fixed plate is arranged on the upper surface of one side of the workbench, a movable plate is arranged on the upper surface of the other side of the workbench, a sliding groove is formed in the upper surface of the workbench below the movable plate, the bottom of the movable plate is connected with a sliding block, a fixed side plate is arranged on the inner side of the fixed plate, and a movable side plate is arranged on the inner side of the movable plate. According to the utility model, by arranging the insection, the gear and the rotating shaft, the automatic overturning function of the clamping tool can be realized, the trouble of manual overturning is replaced, and the drilling efficiency of parts is improved; through setting up fixed splint and moving splint, can reach and carry out spacingly through moving splint to the top and the one side distance of spare part, carry out spacingly through the bottom and the opposite side of fixed splint to the spare part, can realize the steady gripping of whole week to right angle shape's fastener, strengthen the stability of spare part drilling processing.
Description
Technical Field
The utility model relates to the technical field of machining devices for mechanical parts, in particular to a turnover auxiliary clamping tool for machining mechanical parts.
Background
The mechanical parts mainly refer to bearings, gears, hydraulic parts, dies, pneumatic elements, fasteners, sealing elements and the like, and are essential components essential to the equipment manufacturing industry. The fastener in the mechanical parts is a part specially used for connection, installation and fastening, and in the vertical connection process of the mechanical cross beam, a rectangular fastening plate is often adopted for connection, and the fastening plate needs to be provided with holes on two sides in the processing process so as to be connected by bolts.
At present, a fastener needs to be clamped by a clamp during drilling, and because the fastener is in a right angle shape, after one side of the fastener is drilled, the fastener needs to be overturned and then the other side of the fastener is drilled, but the existing clamp does not have universality, cannot realize the overturning clamping of the right angle-shaped fastener, often needs manual overturning, is fixed again, and has the problem of low fastener machining efficiency.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a turnover auxiliary clamping tool for machining mechanical parts, which aims to solve the problems in the prior art.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a machinery spare part processing is with upset auxiliary clamping frock, includes the workstation, workstation one side upper surface is provided with the fixed plate, workstation opposite side upper surface is provided with the fly leaf, the spout has been seted up to the below that the workstation upper surface is in the fly leaf, the fly leaf bottom is connected with the slider, the fixed plate inboard is provided with decides the curb plate, the fly leaf inboard is provided with movable side board, it is connected with the fixed splint to decide one side that the curb plate is close to movable side board, it is provided with movable splint to move one side that the curb plate is close to the fixed side board, fixed side board is provided with the insection with movable side board lateral wall, fixed plate and fly leaf top all are connected with the roof, the inside pivot that runs through of roof is provided with.
Preferably, the screw is run through in the slider middle part, the inside screw that runs through of screw is provided with, screw one end is connected with the handle, the screw both ends are all connected with the spout inner wall through the bearing, the screw passes through screw and slider threaded connection, slider and fly leaf bottom body coupling, the slider card forms sliding connection in the spout inside.
Preferably, the fixed plate and the movable plate are annular, the middle parts of the inner walls of the fixed plate and the movable plate are annular concave and are respectively clamped on the outer sides of the fixed side plate and the movable side plate, and the fixed plate and the movable plate are respectively connected with the fixed side plate and the movable side plate in a rotating mode.
Preferably, one side of the fixed clamping plate, which is close to the movable clamping plate, is connected with a first inserting block, the upper surface of the fixed clamping plate is provided with a magnetic plate, the side wall of the fixed clamping plate is provided with a first inserting groove, the two ends of the movable clamping plate are both connected with second inserting blocks, the side wall of the movable clamping plate is provided with a second inserting groove, the side wall of the movable clamping plate is positioned above the second inserting groove and is provided with a third inserting groove, the cross section of the fixed clamping plate is in an inverted F shape, the cross section of the movable clamping plate is in a corner shape with a middle part bent by 90 degrees, and the fixed clamping plate is inserted with the second inserting groove through the first inserting block.
Preferably, the rear side walls of the first slot and the third slot are respectively provided with a jackscrew in a penetrating way, one side of the movable clamping plate is connected with the first slot in an inserting way through the second inserting block, and the other side of the movable clamping plate is connected with the third slot in an inserting way through the second inserting block.
Preferably, gears are arranged at two ends of the rotating shaft, one end of the rotating shaft is connected with a driven wheel, a driving wheel is arranged below the driven wheel, one side of the driving wheel is connected with a motor, one end of the rotating shaft is rotatably connected with a top plate on the fixed plate through a bearing, and the other end of the rotating shaft is movably inserted into the top plate on the movable plate.
Preferably, the number of the gears is two, the positions of the two gears correspond to the fixed side plate and the movable side plate respectively, and the gears are meshed with the insections.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the overturning auxiliary clamping tool for machining the mechanical parts, the insection, the gears and the rotating shaft are arranged, under the condition that the fixed clamping plate and the movable clamping plate stably clamp the parts to finish drilling on one side, the driving wheel is driven by the motor to rotate, the driving wheel is driven by the belt to rotate, the driven wheel is driven by the driving wheel to rotate, the rotating shaft drives the two gears to rotate, the gears are meshed with the insection to drive the fixed side plate and the movable side plate to rotate, the fixed side plate and the movable side plate respectively drive the fixed clamping plate and the movable clamping plate to rotate, and then the parts are driven to overturn by 90 degrees, so that the parts are conveniently and upwards overturned on the other side of the parts, the automatic overturning function of the clamping tool is realized, the manual overturning can be replaced, and the drilling efficiency of the parts is improved.
2. According to the turnover auxiliary clamping tool for machining the mechanical parts, the fixed clamping plate and the movable clamping plate are arranged, the sliding block drives the movable plate to move in the sliding process of the sliding block in the sliding groove, the movable plate drives the movable side plate and the movable clamping plate to move, so that the fixed clamping plate and the movable clamping plate are closed, the fixed clamping plate is designed into an inverted F shape, the movable clamping plate is designed into a corner shape bent at 90 degrees, at the moment, the fixed clamping plate and the movable clamping plate are diagonally placed, the top and one side distance of the parts are limited through the movable clamping plate, the bottom and the other side of the parts are limited through the fixed clamping plate, the whole-circumference stable clamping can be realized for a right-angle fastener, and the stability of drilling machining of the parts is enhanced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a connection structure between a fixed side plate and a movable side plate according to the present utility model;
FIG. 3 is a schematic view of the structure of the fixed clamping plate of the present utility model;
fig. 4 is a schematic view of a movable clamping plate structure according to the present utility model.
In the figure: 1. a work table; 2. a fixing plate; 3. a movable plate; 4. a chute; 5. a slide block; 51. a screw hole; 52. a screw; 53. a handle; 6. a fixed side plate; 61. a fixed clamping plate; 62. a first plug; 63. a magnetic plate; 64. a first slot; 7. a movable side plate; 71. a movable clamping plate; 72. a second insert block; 73. a second slot; 74. a third slot; 8. a jackscrew; 9. tooth patterns; 10. a top plate; 11. a rotating shaft; 12. a gear; 13. driven wheel; 14. a driving wheel; 15. a belt; 16. and a motor.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1-4, in this embodiment, a turnover auxiliary clamping tool for machining mechanical parts comprises a workbench 1, wherein a fixed plate 2 is arranged on the upper surface of one side of the workbench 1, the fixed plate 2 is welded and fixed on the upper surface of the workbench 1, a movable plate 3 is arranged on the upper surface of the other side of the workbench 1, a chute 4 is formed below the upper surface of the workbench 1, the bottom of the movable plate 3 is connected with a sliding block 5, the cross sections of the sliding block 5 and the chute 4 are in a shape, and the sliding block 5 is clamped in the chute 4 and is used for supporting the movable plate 3 to move on the workbench 1; the inner side of the fixed plate 2 is provided with a fixed side plate 6, the inner side of the movable plate 3 is provided with a movable side plate 7, the fixed side plate 6 and the movable side plate 7 are disc-shaped, the fixed side plate 6 and the movable side plate 7 are respectively clamped in the fixed plate 2 and the movable plate 3, one side of the fixed side plate 6, which is close to the movable side plate 7, is connected with a fixed clamping plate 61, one side of the movable side plate 7, which is close to the fixed side plate 6, is provided with a movable clamping plate 71, and the fixed clamping plate 61 and the movable clamping plate 71 are used for diagonally clamping parts; the fixed side plate 6 and the movable side plate 7 are provided with insections 9 on the outer side wall, the top of the fixed plate 2 and the top of the movable plate 3 are respectively connected with a top plate 10, the top plates 10 are integrally connected with the fixed plate 2 and the movable plate 3, a rotating shaft 11 penetrates through the top plates 10, the rotating shaft 11 is positioned on the front side above the fixed side plate 6 and the movable side plate 7, and the rotating shaft 11 does not block the processing of parts.
Specifically, screw hole 51 has been run through in slider 5 middle part, screw hole 51 inside runs through and is provided with screw rod 52, screw rod 52 external diameter size and screw hole 51 internal diameter size looks adaptation, screw rod 52 one end is connected with handle 53, screw rod 52 both ends are all connected with spout 4 inner wall through the bearing, screw rod 52 is through screw hole 51 and slider 5 threaded connection, through rotating handle 53, handle 53 drives screw rod 52 in spout 4 internal rotation screw rod 52, drive slider 5 through screw hole 51 and slide in spout 4, slider 5 and fly leaf 3 bottom body coupling, slider 5 card forms sliding connection in spout 4 inside, slider 5 drives fly leaf 3 horizontal slip on workstation 1 when sliding in spout 4.
Further, the fixed plate 2 and the movable plate 3 are both in a ring shape, the middle parts of the inner walls of the fixed plate 2 and the movable plate 3 are in annular depressions and are respectively clamped on the outer sides of the fixed side plate 6 and the movable side plate 7, the middle parts of the outer side walls of the fixed side plate 6 and the movable side plate 7 are outwards protruded, the fixed side plate 6 and the movable side plate 7 are respectively clamped with the concave parts of the inner walls of the fixed plate 2 and the movable plate 3 through protrusions, the fixed plate 2 and the movable plate 3 are respectively connected with the fixed side plate 6 and the movable side plate 7 in a rotating mode, when the rotating shaft 11 rotates, the rotating shaft 11 drives the gear 12 to rotate, and the gear 12 drives the fixed side plate 6 and the movable side plate 7 to rotate relative to the fixed plate 2 and the movable plate 3 through the insection 9.
Further, one side of the fixed clamping plate 61, which is close to the movable clamping plate 71, is connected with a first inserting block 62, the first inserting block 62 is integrally connected with the fixed clamping plate 61, a magnetic plate 63 is mounted on the upper surface of the fixed clamping plate 61, the magnetic plate 63 is made of a permanent magnet and is used for adsorbing parts for preliminary positioning, the parts are prevented from shifting when the fixed clamping plate 61 is combined with the movable clamping plate 71, a first inserting groove 64 is formed in the side wall of the fixed side plate 6, two ends of the movable clamping plate 71 are connected with second inserting blocks 72, a second inserting groove 73 is formed in the side wall of the movable side plate 7, a third inserting groove 74 is formed in the upper portion of the second inserting groove 73, the cross section of the fixed clamping plate 61 is in an inverted F shape, the middle of the movable clamping plate 71 is in a 90-degree bent corner shape, the fixed clamping plate 61 is designed into an inverted F shape through designing the fixed clamping plate 61, the movable clamping plate 71 is in a 90-degree bent corner shape, the parts are clamped diagonally after the fixed clamping plate 61 is combined with the movable clamping plate 71, the whole-circumference stable clamping can be realized for a fastening piece, the stability of the whole-angle stable clamping of the part drilling processing can be enhanced, the fixed clamping 61 is connected with the movable clamping plate through the first inserting block 62 and the second inserting groove 73, the fixed clamping plate 7 is connected with the movable clamping plate 7 through the first inserting block 62 and the movable clamping plate 7.
Further, the rear side walls of the first slot 64 and the third slot 74 are respectively provided with a jackscrew 8 in a penetrating manner, when the jackscrew 8 rotates, the jackscrews are screwed into the first slot 64 and the third slot 74, and the second inserting block 72 is extruded to tightly attach the fixed clamping plate 61 to the movable clamping plate 71, one side of the movable clamping plate 71 is inserted into the first slot 64 through the second inserting block 72, the other side of the movable clamping plate 71 is inserted into the third slot 74 through the second inserting block 72, and two ends of the fixed clamping plate 61 are respectively connected with the fixed side plate 6 and the movable side plate 7.
Further, the gears 12 are installed at two ends of the rotating shaft 11, one end of the rotating shaft 11 is connected with the driven wheel 13, the driving wheel 14 is arranged below the driven wheel 13, one side of the driving wheel 14 is connected with the motor 16, the driving wheel 14 is rotationally connected with the driven wheel 13 through the belt 15, the driving wheel 14 is driven to rotate through the motor 16, the driven wheel 13 is driven to rotate through the belt 15, the driven wheel 13 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the two gears 12 to rotate, one end of the rotating shaft 11 is rotationally connected with the top plate 10 on the fixed plate 2 through a bearing, the other end of the rotating shaft 11 is movably inserted into the top plate 10 on the movable plate 3, the movable plate 3 moves towards one side far away from the fixed plate 2, at the moment, the movable side plate 7 is separated from the gear 12 on the rotating shaft 11 is pulled out from the top plate 10 on the top of the movable plate 3, and the insection 9 on the top of the movable side plate 7 is meshed with the other gear 12 under the condition that the insection 9 on the fixed side plate 6 is meshed with the gear 12, and therefore the movable side plate 7 can move towards one side of the gear 12.
Furthermore, the number of the gears 12 is two, the positions of the two gears 12 correspond to the fixed side plate 6 and the movable side plate 7 respectively, the gears 12 are meshed with the insection 9, when the rotating shaft 11 drives the two gears 12 to rotate, the gears 12 are meshed with the insection 9 to drive the fixed side plate 6 and the movable side plate 7 to rotate, and the fixed side plate 6 and the movable side plate 7 drive the fixed clamping plate 61 and the movable clamping plate 71 to rotate respectively, so that the parts are driven to turn over 90 degrees, the other side of the parts is turned over to the upper side to facilitate drilling, and the automatic turning function of the clamping tool is realized.
The application method of the embodiment is as follows: under the condition that a user actually drills a right-angle fastener, firstly, the fastener is placed on the upper surface of a fixed clamping plate 61, the magnetic plate 63 magnetically attracts the inner wall of the corner of the fastener, then the handle 53 is rotated, the handle 53 drives the screw 52 to rotate, the screw 52 drives the sliding block 5 to slide in the sliding groove 4 through the screw hole 51, the sliding block 5 drives the movable plate 3 to move towards one side of the fixed plate 2 on the workbench 1, meanwhile, the movable plate 3 drives the movable clamping plate 71 to move towards one side of the fixed clamping plate 61 through the movable side plate 7, the first inserting block 62 on the side wall of the fixed clamping plate 61 is inserted into the second inserting groove 73, the second inserting block 72 on two sides of the movable clamping plate 71 is respectively inserted into the first inserting groove 64 and the third inserting groove 74, then the jackscrew 8 is rotated to be fastened, the fixed clamping plate 61 and the movable clamping plate 71 are respectively positioned on two opposite sides of the corner of the fastener, the top and one side distance of the parts are limited through the movable clamping plate 71, the bottom and the other side of the parts are limited through the fixed clamping plate 61, then the drilling mechanism is started to move downwards by the drilling mechanism, one side of the fastener is drilled, after the drilling of the side is completed, the motor 16 is started, the motor 16 drives the driving wheel 14 to rotate, the driving wheel 14 drives the driven wheel 13 to rotate through the belt 15, the driven wheel 13 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the two gears 12 to rotate, the gears 12 are meshed with the insection 9 to drive the fixed side plate 6 and the movable side plate 7 to rotate, the fixed side plate 6 and the movable side plate 7 respectively drive the fixed clamping plate 61 and the movable clamping plate 71 to rotate, the fastener is further driven to turn over 90 degrees, the other side of the fastener is turned over to the upper side for drilling, the jackscrew 8 is dismounted after the drilling is completed, the fixed clamping plate 61 and the movable clamping plate 71 are separated, and the fastener is taken out.
Finally, it should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the present utility model, and those skilled in the art may make modifications and equivalents to the technical solutions described in the foregoing embodiments. Any modifications, equivalent substitutions, etc. within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a machinery spare part processing is with upset auxiliary clamping frock, includes workstation (1), its characterized in that: the upper surface of one side of the workbench (1) is provided with a fixed plate (2), the upper surface of the other side of the workbench (1) is provided with a movable plate (3), a chute (4) is formed below the movable plate (3) on the upper surface of the workbench (1), the bottom of the movable plate (3) is connected with a sliding block (5), the inner side of the fixed plate (2) is provided with a fixed side plate (6), the inner side of the movable plate (3) is provided with a movable side plate (7), fixed curb plate (6) are close to one side of moving curb plate (7) and are connected with fixed splint (61), move one side that curb plate (7) are close to fixed curb plate (6) and be provided with movable splint (71), fixed curb plate (6) are provided with insection (9) with moving curb plate (7) lateral wall, fixed plate (2) all are connected with roof (10) with movable plate (3) top, roof (10) inside run through and are provided with pivot (11).
2. The turnover auxiliary clamping tool for machining mechanical parts according to claim 1, wherein: screw (51) have been run through in slider (5) middle part, screw (51) are inside to be run through and are provided with screw rod (52), screw rod (52) one end is connected with handle (53), screw rod (52) both ends are all connected with spout (4) inner wall through the bearing, screw rod (52) are through screw (51) and slider (5) threaded connection, slider (5) and fly leaf (3) bottom body coupling, slider (5) card is inside to form sliding connection in spout (4).
3. The turnover auxiliary clamping tool for machining mechanical parts according to claim 1, wherein: the fixed plate (2) and the movable plate (3) are all in a circular ring shape, the middle parts of the inner walls of the fixed plate (2) and the movable plate (3) are annular concave and are respectively clamped outside the fixed side plate (6) and the movable side plate (7), and the fixed plate (2) and the movable plate (3) are respectively connected with the fixed side plate (6) and the movable side plate (7) in a rotating mode.
4. The turnover auxiliary clamping tool for machining mechanical parts according to claim 1, wherein: the fixed clamp plate (61) is connected with a first inserting block (62) near one side of the movable clamp plate (71), a magnetic plate (63) is mounted on the upper surface of the fixed clamp plate (61), a first inserting groove (64) is formed in the side wall of the fixed clamp plate (6), second inserting blocks (72) are connected to two ends of the movable clamp plate (71), a second inserting groove (73) is formed in the side wall of the movable clamp plate (7), a third inserting groove (74) is formed in the side wall of the movable clamp plate (7) above the second inserting groove (73), the cross section of the fixed clamp plate (61) is in an inverted F shape, the cross section of the movable clamp plate (71) is in a corner shape with 90-degree bending in the middle, and the fixed clamp plate (61) is inserted into the second inserting groove (73) through the first inserting block (62).
5. The turnover auxiliary clamping tool for machining mechanical parts according to claim 4, wherein: the side walls behind the first slot (64) and the third slot (74) are respectively provided with a jackscrew (8) in a penetrating mode, one side of the movable clamping plate (71) is connected with the first slot (64) in an inserting mode through the second inserting block (72), and the other side of the movable clamping plate (71) is connected with the third slot (74) in an inserting mode through the second inserting block (72).
6. The turnover auxiliary clamping tool for machining mechanical parts according to claim 1, wherein: the novel rotary table is characterized in that gears (12) are arranged at two ends of the rotary shaft (11), one end of the rotary shaft (11) is connected with a driven wheel (13), a driving wheel (14) is arranged below the driven wheel (13), one side of the driving wheel (14) is connected with a motor (16), one end of the rotary shaft (11) is rotatably connected with a top plate (10) on the fixed plate (2) through a bearing, and the other end of the rotary shaft (11) is movably inserted into the top plate (10) on the movable plate (3).
7. The turnover auxiliary clamping tool for machining mechanical parts according to claim 6, wherein: the number of the gears (12) is two, the positions of the two gears (12) correspond to the fixed side plate (6) and the movable side plate (7) respectively, and the gears (12) are meshed with the insections (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321689266.2U CN220128731U (en) | 2023-06-30 | 2023-06-30 | Turnover auxiliary clamping tool for machining mechanical parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321689266.2U CN220128731U (en) | 2023-06-30 | 2023-06-30 | Turnover auxiliary clamping tool for machining mechanical parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220128731U true CN220128731U (en) | 2023-12-05 |
Family
ID=88962147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321689266.2U Active CN220128731U (en) | 2023-06-30 | 2023-06-30 | Turnover auxiliary clamping tool for machining mechanical parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220128731U (en) |
-
2023
- 2023-06-30 CN CN202321689266.2U patent/CN220128731U/en active Active
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