CN220439575U - Swing arm structure for reducing wind resistance - Google Patents
Swing arm structure for reducing wind resistance Download PDFInfo
- Publication number
- CN220439575U CN220439575U CN202321541883.8U CN202321541883U CN220439575U CN 220439575 U CN220439575 U CN 220439575U CN 202321541883 U CN202321541883 U CN 202321541883U CN 220439575 U CN220439575 U CN 220439575U
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- swing arm
- rib
- seat
- base
- arm seat
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- 125000003003 spiro group Chemical group 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 235000012431 wafers Nutrition 0.000 abstract description 19
- 238000013461 design Methods 0.000 abstract description 6
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
The utility model relates to the technical field of wafer packaging, in particular to a swing arm structure for reducing wind resistance, which comprises a swing arm seat, a swing arm support and a pickup piece, wherein the swing arm seat is of an internal hollow structure and is connected with the swing arm support, the pickup piece is arranged at one end of the swing arm support far away from the swing arm seat, the swing arm seat is provided with a plurality of first hollow grooves, the swing arm support comprises a first frame part, a base part, a second frame part and a mounting part which are integrally formed, the first frame part protrudes out of one side of the base part and is connected with the swing arm seat, the second frame part protrudes out of the other side of the base part and is connected with the mounting part, the pickup piece is arranged at the mounting part, and the second frame part is provided with a plurality of second hollow grooves. The utility model adopts a streamline hollow structure, thereby not only effectively reducing the air resistance and shaking when the swing arm moves and reducing the influence of wind resistance, but also having compact structure, reasonable design, flexible and stable movement and ensuring the picking and placing precision of wafers.
Description
Technical Field
The utility model relates to the technical field of wafer packaging, in particular to a swing arm structure for reducing wind resistance.
Background
In the prior art, the wafer transferring work is mostly finished by using a manipulator to replace manual operation, when the wafer transferring work is performed, firstly, a suction nozzle is used for sucking the wafer, then a swing arm is used for driving the wafer sucked by the suction nozzle to rotate and transfer the wafer to a designated processing station, and in the rotating process of the swing arm, because the conventional swing arm is complex in structure and huge in size, larger wind resistance is easily generated on the surface of a planar structure, so that the swing arm is greatly rocked to influence the rotating speed and the positioning precision, and for the precise components of the wafer, the wafer can cause position deviation after transferring, and further the picking and placing precision of the wafer is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the swing arm structure for reducing wind resistance, which adopts a streamline hollow structure, thereby not only effectively reducing air resistance and shaking when the swing arm moves and reducing the influence of wind resistance, but also having compact structure, reasonable design and flexible and stable movement and ensuring the picking and placing precision of wafers.
In order to achieve the above object, the swing arm structure for reducing wind resistance comprises a swing arm seat, a swing arm support and a pickup piece, wherein the swing arm seat is of an internal hollow structure and is connected with the swing arm support, the pickup piece is arranged at one end of the swing arm support far away from the swing arm seat, the swing arm seat is provided with a plurality of first hollow grooves, the swing arm support comprises a first frame part, a base part, a second frame part and a mounting part which are integrally formed, the first frame part protrudes out of one side of the base part and is connected with the swing arm seat, the second frame part protrudes out of the other side of the base part and is connected with the mounting part, the pickup piece is arranged at the mounting part, and the second frame part is provided with a plurality of second hollow grooves.
Preferably, the second frame portion comprises a base and a supporting arm obliquely arranged with the base, the second hollow groove is concavely formed from the side face of the supporting arm, the supporting arm is provided with a first rib and a second rib which are located in the second hollow groove, the first rib and the second rib are provided with a plurality of, and the first ribs and the second ribs are sequentially connected into a wavy strip shape and are enclosed between the base and the supporting arm to form a supporting structure.
Preferably, arc-shaped surfaces with smooth transition are formed between the base and the plurality of first ribs, between the base and the plurality of second ribs, between the supporting arm and the plurality of first ribs and between the supporting arm and the plurality of second ribs.
Preferably, the base is tapered, and an outer diameter of an end of the base remote from the base is smaller than an outer diameter of an end of the base near the base.
Preferably, the first hollow groove is concavely formed from two sides of the swing arm seat, the swing arm seat is provided with a third rib, a fourth rib and a fifth rib which are positioned in the first hollow groove, the third rib and the fourth rib are vertically arranged, and the fifth rib is obliquely arranged between the third rib and the fourth rib.
Preferably, the swing arm seat is provided with the jackscrew subassembly that is used for adjusting the arm support levelness, the jackscrew subassembly includes that top lead screw and cover establish the spiro union in the adjusting nut in the jackscrew outside, first spiro union hole has been seted up to the swing arm seat, first frame portion is provided with the balancing piece, the jackscrew pole wears to locate adjusting nut and with first spiro union hole threaded connection, the jackscrew pole is protruding to be stretched into in the swing arm seat and is blocked and contradict in the balancing piece.
Preferably, the swing arm seat is provided with buffer assembly, buffer assembly includes that the threaded rod outside protruding swing arm seat, cover establish the coupling nut of spiro union in the threaded rod outside and the spring in the threaded rod outside is located to the cover, the second spiro union hole has been seted up to the swing arm seat, the threaded rod wears to locate first frame portion and with second spiro union hole threaded connection, the one end of spring is contradicted the threaded rod, the other end of spring is contradicted coupling nut.
Preferably, the junction between swing arm seat and the swing arm frame is provided with coupling assembling, coupling assembling includes first connecting screw, second connecting screw, connecting seat, first connecting plate and second connecting plate, first connecting hole has been seted up to the swing arm seat, the second connecting hole has been seted up to the basal portion, first connecting screw wears to locate first connecting hole, connecting seat and is connected with first connecting plate, second connecting screw wears to locate second connecting hole, connecting seat and is connected with the second connecting plate.
Preferably, the mounting portion is provided with a connecting groove, a mounting hole communicated with the connecting groove and an assembly hole penetrating through the outer wall of the connecting groove, the pick-up piece is accommodated in the mounting hole, the connecting groove is of an L-shaped structure, and the assembly hole is provided with an assembly screw.
Preferably, mounting lugs are arranged on two sides of the swing arm seat.
The utility model has the beneficial effects that: the utility model adopts a streamline hollow structure, thereby not only effectively reducing the contact area of air and the swing arm and reducing the adverse effect caused by wind resistance, but also having compact structure, reasonable design and flexible and stable movement and ensuring the picking and placing precision of wafers.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic side view of the present utility model.
Fig. 3 is a schematic exploded view of the present utility model.
The reference numerals include:
1-a swing arm seat 11-a first hollow groove 12-a third rib
13-fourth rib 14-fifth rib
15-jackscrew assembly 151-jackscrew 152-adjusting nut
16-first screw hole
17-buffer assembly 171-threaded rod 172-connecting nut
173-spring
18-second screw hole 19-first connecting hole 110-mounting ear
2-swing arm frame 21-first frame portion 22-base portion
23-second frame 231-base 232-support arm
233-first rib 234-second rib 235-arcuate surfaces
24-mounting portion 241-connecting groove 242-mounting hole
243-fitting hole 244-fitting screw
25-second hollow groove 26-balance weight 27-second connecting hole
3-picking piece
4-connecting Assembly 41-first connecting screw 42-second connecting screw
43-connection seat 44-first connection plate 45-second connection plate.
Detailed Description
The present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the swing arm structure for reducing wind resistance of the present utility model includes a swing arm seat 1, a swing arm frame 2 and a pickup element 3, wherein the swing arm seat 1 is of a hollow structure and is connected with the swing arm frame 2, the pickup element 3 is mounted at one end of the swing arm frame 2 far away from the swing arm seat 1, the swing arm seat 1 is provided with a plurality of first hollow grooves 11, the swing arm frame 2 includes a first frame portion 21, a base portion 22, a second frame portion 23 and a mounting portion 24 which are integrally formed, the first frame portion 21 protrudes out of one side of the base portion 22 and is connected with the swing arm seat 1, the second frame portion 23 protrudes out of the other side of the base portion 22 and is connected with the mounting portion 24, the pickup element 3 is mounted at the mounting portion 24, and the second frame portion 23 is provided with a plurality of second hollow grooves 25.
When an external power mechanism drives the swing arm support 2 to rotate through the swing arm support 1, a wafer is sucked by the pick-up piece 3 and transferred to a designated processing station, the swing arm support 1 with an internal hollow structure is favorable for the swing arm support 2 to be installed in the swing arm support 1 in a penetrating way, the swing arm support 1 is provided with a plurality of first hollow grooves 11, the first support part 21, the base part 22, the second support part 23 and the installation part 24 are sequentially connected into an integrated structure, the swing arm support 2 is designed into an integrated streamline structure, the frictional resistance generated when air flows through the outer surface of the swing arm support 2 is effectively reduced, the swing arm support 2 with the streamline structure has an object shape with no obvious separation of air flow at the surface, the minimum air flow resistance of the swing arm support 2 in the moving process can be ensured, the second frame portion 23 is provided with a plurality of second hollow grooves 25, through the arrangement of the first hollow grooves 11 and the second hollow grooves 25, the weight of the swing arm seat 1 and the swing arm frame 2 can be reduced, the effects of high structural strength and light weight are achieved, the movement is stable and rapid, the air resistance generated when the swing arm frame 2 moves at a high speed can be reduced, the time that the swing arm frame 2 moves in place and stops at a high speed can be reduced, the setting time of the swing arm frame 2 is shortened, the die bonding precision and the working efficiency are improved, the situation that the wafer position is offset in the process of transferring the wafer due to the influence of wind resistance can be avoided, the pick-up piece 3 is arranged on the mounting portion 24, the wafer is accurately picked up by the pick-up piece 3, and the pick-up efficiency of the wafer is improved. The utility model adopts a streamline hollow structure, thereby not only effectively reducing the air resistance and shaking when the swing arm moves and reducing the influence of wind resistance, but also having compact structure, reasonable design, flexible and stable movement and ensuring the picking and placing precision of wafers.
The second frame portion 23 of this embodiment includes a base 231 and a support arm 232 inclined to the base 231, the second hollow groove 25 is concavely formed from a side surface of the support arm 232, the support arm 232 is provided with a first rib 233 and a second rib 234 located in the second hollow groove 25, the first rib 233 and the second rib 234 are provided with a plurality of, and the plurality of first ribs 233 and the plurality of second ribs 234 are sequentially connected into a wave-shaped strip and enclosed between the base 231 and the support arm 232 to form a support structure. Specifically, the supporting arm 232 is obliquely arranged on the base 231, the plurality of first ribs 233 and the plurality of second ribs 234 are sequentially connected into a wavy strip shape and are enclosed between the base 231 and the supporting arm 232 to form a supporting structure, the supporting points are uniformly distributed, the stress is balanced, the structure is stable and reliable, the second frame part 23 cannot deform due to the difference of the stress, the integral structural strength of the second frame part 23 is effectively enhanced, the second hollow groove 25 is matched with the first ribs 233 and the second ribs 234, the structure is compact, the occupied space is small, the materials are reduced, and the manufacturing is simple.
Arcuate surfaces 235 of smooth transitions are formed between the base 231 and the plurality of first ribs 233, between the base 231 and the plurality of second ribs 234, between the support arm 232 and the plurality of first ribs 233, and between the support arm 232 and the plurality of second ribs 234 in the present embodiment. Specifically, the first frame portion 21, the base 231 and the supporting arm 232 enclose each other to form a three-dimensional triangle structure, the whole structure is stable and firm, the swing and the shake are not easy to be influenced by the outside, the surface of the arc surface 235 is smooth, the smoothness of lines is good, the second frame portion 23 is facilitated to integrally form a streamline structure with attractive appearance, the aerodynamic optimization design is more met, the air resistance is effectively reduced, and the swing and the shake are avoided.
The seat 231 of the present embodiment is tapered, and the outer diameter of the end of the seat 231 far from the base 22 is smaller than the outer diameter of the end of the seat 231 near the base 22. Specifically, the base 231 is designed into a smooth cone shape with compact structure, which has the advantages of smart design, simple structure, convenient production, low production cost and the like, and also effectively reduces air resistance and improves action smoothness.
The first hollow groove 11 of the present embodiment is concavely formed from two sides of the swing arm seat 1, the swing arm seat 1 is provided with a third rib 12, a fourth rib 13 and a fifth rib 14 located in the first hollow groove 11, the third rib 12 and the fourth rib 13 are vertically arranged, and the fifth rib 14 is obliquely arranged between the third rib 12 and the fourth rib 13. Specifically, the third rib 12 and the fourth rib 13 are vertically arranged, the fifth rib 14 is obliquely arranged between the third rib 12 and the fourth rib 13, so that a stable and firm supporting structure is formed, the structural stability of the swing arm seat 1 is effectively improved, the mechanical vibration amplitude of the swing arm seat 1 is reduced, the first hollow groove 11 is matched with the third rib 12, the fourth rib 13 and the fifth rib 14, the structure is compact, the occupied space is small, the material consumption is reduced, the manufacturing is simple, the first hollow groove 11 is arranged, the weight of the swing arm seat 1 is reduced, the shock absorption capacity of the swing arm seat 1 is improved, and the service life of the swing arm seat 1 is prolonged.
The swing arm seat 1 of this embodiment is provided with the jackscrew subassembly 15 that is used for adjusting the levelness of swing arm frame 2, the jackscrew subassembly 15 includes top lead screw 151 and cover establishes the adjusting nut 152 of spiro union in the jackscrew 151 outside, first spiro union hole 16 has been seted up to swing arm seat 1, first frame portion 21 is provided with the balancing piece 26, adjusting nut 152 and with first spiro union hole 16 threaded connection are worn to locate by jackscrew 151, the jackscrew 151 is stretched into in the swing arm seat 1 and is stopped to contradict in the balancing piece 26. Specifically, the jackscrew rod 151 wears to locate adjusting nut 152 and with first spiro union hole 16 threaded connection for jackscrew rod 151 stretches into swing arm seat 1 and keeps off to contradict in balancing piece 26, and when the terminal of jackscrew rod 151 and balancing piece 26 counterpoint were pasted, can make swing arm frame 2 be in horizontal position, utilized jackscrew rod 151 to support and prop up balancing piece 26, effectively adjusted the dynamics of supporting against balancing piece 26, can prevent swing arm frame 2 side-to-side slope, the position stationarity is good.
The swing arm seat 1 of this embodiment is provided with buffer assembly 17, buffer assembly 17 includes the threaded rod 171 that stretches out outside the swing arm seat 1, overlaps and establishes the coupling nut 172 of spiro union in the threaded rod 171 outside and overlaps the spring 173 of locating the threaded rod 171 outside, the second spiro union hole 18 has been seted up to the swing arm seat 1, the threaded rod 171 wears to locate first frame portion 21 and with second spiro union hole 18 threaded connection, the one end of spring 173 contradicts threaded rod 171, the other end of spring 173 contradicts coupling nut 172. Specifically, the threaded rod 171 is threaded through the first frame portion 21 and is in threaded connection with the second threaded hole 18, the connecting nut 172 is in threaded connection with the top end of the threaded rod 171, one end of the spring 173 abuts against the threaded rod 171, the other end of the spring 173 abuts against the connecting nut 172, and according to the actual working requirement, the connecting nut 172 can be rotated to enable the connecting nut 172 to lift along the threaded rod 171 in a threaded manner, and accordingly the elastic force applied between the threaded rod 171 and the connecting nut 172 by the spring 173 is adjusted, the spring 173 is elastically deformed to buffer collision impact from the outside, and vibration and noise are reduced.
The junction between swing arm seat 1 and swing arm frame 2 of this embodiment is provided with coupling assembling 4, coupling assembling 4 includes first connecting screw 41, second connecting screw 42, connecting seat 43, first connecting plate 44 and second connecting plate 45, first connecting hole 19 has been seted up to swing arm seat 1, second connecting hole 27 has been seted up to base 22, first connecting screw 41 wears to locate first connecting hole 19, connecting seat 43 and is connected with first connecting plate 44, second connecting screw 42 wears to locate second connecting hole 27, connecting seat 43 and is connected with second connecting plate 45. Specifically, the swing arm seat 1 is provided with a first connecting hole 19, the base 22 is provided with a second connecting hole 27, the first connecting screw 41 penetrates through the first connecting hole 19, the connecting seat 43 and is connected with the first connecting plate 44, the second connecting screw 42 penetrates through the second connecting hole 27, the connecting seat 43 and is connected with the second connecting plate 45, and the connecting seat 43 effectively bears and is installed between the swing arm seat 1 and the swing arm frame 2, so that the connection is stable and reliable.
The mounting portion 24 of this embodiment is provided with a connecting slot 241, a mounting hole 242 communicating with the connecting slot 241, and an assembly hole 243 penetrating through the outer wall of the connecting slot 241, the pick-up member 3 is accommodated in the mounting hole 242, the connecting slot 241 is in an L-shaped structure, and the assembly hole 243 is provided with an assembly screw 244. Specifically, the connecting groove 241 of L-shaped structure is communicated with the mounting hole 242, the mounting hole 243 penetrates through the outer wall of the connecting groove 241, the pickup 3 is accommodated in the mounting hole 242, the mounting screw 244 is inserted into the mounting hole 243 in a screwed mode, and then the gap of the connecting groove 241 is contracted, so that the pickup 3 is clamped and fixed by the mounting hole 242, and the connection is firmer and stable.
Both sides of the swing arm seat 1 of the present embodiment are provided with mounting lugs 110. Specifically, the mounting lugs 110 are provided with two mounting lugs and extend outwards from two sides of the swing arm seat 1, so that external screws can conveniently penetrate through the mounting lugs 110 to fix the mounting positions of the swing arm seat 1, and the mounting lugs are convenient to operate and high in assembly efficiency.
The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.
Claims (10)
1. Swing arm structure that reduces windage, its characterized in that: including swing arm seat, swing arm frame and pick up the piece, the swing arm seat is inside hollow structure and is connected with the swing arm frame, pick up the piece and install in the swing arm frame one end of keeping away from the swing arm seat, a plurality of first fretwork groove has been seted up to the swing arm seat, the swing arm frame includes integrated into one piece's first frame portion, basal portion, second frame portion and installation department, one side that first frame portion stretched out the basal portion and be connected with the swing arm seat, the opposite side that the second frame portion stretched out the basal portion and be connected with the installation department, pick up the piece and install in the installation department, a plurality of second fretwork groove has been seted up to the second frame portion.
2. The swing arm structure for reducing wind resistance according to claim 1, wherein: the second frame portion comprises a base and a supporting arm obliquely arranged with the base, the second hollow groove is concavely formed from the side face of the supporting arm, the supporting arm is provided with a first rib and a second rib which are located in the second hollow groove, the first rib and the second rib are provided with a plurality of ribs, and a plurality of first ribs and a plurality of second ribs are sequentially connected into a wavy strip shape and are enclosed between the base and the supporting arm to form a supporting structure.
3. The swing arm structure for reducing wind resistance according to claim 2, wherein: and arc-shaped surfaces for smooth transition are formed between the base and the plurality of first ribs, between the base and the plurality of second ribs, between the supporting arm and the plurality of first ribs and between the supporting arm and the plurality of second ribs.
4. A swing arm structure for reducing wind resistance according to claim 3, wherein: the base is conical, and the outer diameter of one end of the base far away from the base is smaller than the outer diameter of one end of the base close to the base.
5. The swing arm structure for reducing wind resistance according to claim 1, wherein: the first hollowed-out groove is concavely formed from two sides of the swing arm seat, the swing arm seat is provided with a third rib, a fourth rib and a fifth rib, the third rib, the fourth rib and the fifth rib are arranged in the first hollowed-out groove, the third rib and the fourth rib are perpendicular, and the fifth rib is obliquely arranged between the third rib and the fourth rib.
6. The swing arm structure for reducing wind resistance according to claim 1, wherein: the swing arm seat is provided with the jackscrew subassembly that is used for adjusting the arm support levelness, the jackscrew subassembly includes that top lead screw and cover establish the spiro union in the adjusting nut in the jackscrew outside, first spiro union hole has been seted up to the swing arm seat, first frame portion is provided with the balancing piece, the jackscrew pole wears to locate adjusting nut and with first spiro union hole threaded connection, the jackscrew pole is protruding to be stretched into in the swing arm seat and keep off to contradict in the balancing piece.
7. The swing arm structure for reducing wind resistance according to claim 1, wherein: the swing arm seat is provided with buffer unit, buffer unit establishes the coupling nut of spiro union in the threaded rod outside and the spring in the threaded rod outside including protruding outside the swing arm seat of stretching out, cover, the second spiro union hole has been seted up to the swing arm seat, the threaded rod wears to locate first frame portion and with second spiro union hole threaded connection, the one end of spring is contradicted the threaded rod, the other end of spring is contradicted coupling nut.
8. The swing arm structure for reducing wind resistance according to claim 1, wherein: the swing arm seat is characterized in that a connecting component is arranged at the joint between the swing arm seat and the swing arm frame and comprises a first connecting screw, a second connecting screw, a connecting seat, a first connecting plate and a second connecting plate, the swing arm seat is provided with a first connecting hole, the base is provided with a second connecting hole, the first connecting screw penetrates through the first connecting hole and the connecting seat and is connected with the first connecting plate, and the second connecting screw penetrates through the second connecting hole and the connecting seat and is connected with the second connecting plate.
9. The swing arm structure for reducing wind resistance according to claim 1, wherein: the mounting part is provided with a connecting groove, a mounting hole communicated with the connecting groove and an assembly hole penetrating through the outer wall of the connecting groove, the pick-up piece is accommodated in the mounting hole, the connecting groove is of an L-shaped structure, and the assembly hole is provided with an assembly screw.
10. The swing arm structure for reducing wind resistance according to claim 1, wherein: mounting lugs are arranged on two sides of the swing arm seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321541883.8U CN220439575U (en) | 2023-06-15 | 2023-06-15 | Swing arm structure for reducing wind resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321541883.8U CN220439575U (en) | 2023-06-15 | 2023-06-15 | Swing arm structure for reducing wind resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220439575U true CN220439575U (en) | 2024-02-02 |
Family
ID=89700586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321541883.8U Active CN220439575U (en) | 2023-06-15 | 2023-06-15 | Swing arm structure for reducing wind resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220439575U (en) |
-
2023
- 2023-06-15 CN CN202321541883.8U patent/CN220439575U/en active Active
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