CN220129469U - Film extrusion equipment die cavity width adjusting device - Google Patents
Film extrusion equipment die cavity width adjusting device Download PDFInfo
- Publication number
- CN220129469U CN220129469U CN202321261992.4U CN202321261992U CN220129469U CN 220129469 U CN220129469 U CN 220129469U CN 202321261992 U CN202321261992 U CN 202321261992U CN 220129469 U CN220129469 U CN 220129469U
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- fixedly connected
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- forming equipment
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- 238000001125 extrusion Methods 0.000 title claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 66
- 230000001360 synchronised effect Effects 0.000 claims abstract description 43
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a film extrusion equipment cavity width adjusting device, which belongs to the technical field of PC film casting production molding and comprises a synchronous adjusting component; the synchronous adjusting components are arranged at the left end and the right end of the bottom of the forming equipment; the left side and the right side of the synchronous adjusting component are both connected with a discharging control board for preliminarily controlling the discharging width of the forming equipment. By the mode, the synchronous adjusting component can continuously adjust the discharging width of the forming equipment; the synchronous adjusting component can synchronously adjust from the left end and the right end of the forming equipment to the middle; the discharging control board can primarily control the discharging width of the forming equipment; the material can be avoided being detained in former bottom by ejection of compact control panel.
Description
Technical Field
The utility model relates to the technical field of PC film casting production molding, in particular to a film extrusion equipment cavity width adjusting device.
Background
The PC film tape casting production forming equipment mainly comprises extrusion equipment, a cooling device, a thickness measuring device, a corona device and a winding device. The extrusion equipment is used for carrying out a series of processing on the materials in a molten state, casting the materials from a die position for preliminary molding, and then cooling and shaping the materials in a cooling device.
Patent CN210336987U discloses a film width control scheme: when the width of the strip-shaped discharge hole 6 needs to be adjusted, a group of screws are loosened, a worker can adjust the width of the strip-shaped discharge hole 6 by moving the adjusting plate 2 upwards or downwards, and a group of screws are screwed for locking after the adjustment is finished.
The solution also has the problems of: the adjusting plate is limited by the size of the adjusting plate, and only certain specific width adjustment can be performed, so that the forming width cannot be continuously adjusted; only the discharge hole is plugged, and some materials above the discharge hole cannot flow out for a long time and are cooled and molded, and the materials are plugged above the discharge hole; in the width adjustment process, manual operation is needed, and synchronous adjustment from two ends to the middle cannot be performed.
Based on the above, the utility model designs a film extrusion equipment cavity width adjusting device to solve the above problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a die cavity width adjusting device of film extrusion equipment.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a film extrusion equipment cavity width adjusting device comprises a synchronous adjusting component; the synchronous adjusting components are arranged at the left end and the right end of the bottom of the forming equipment; the left side and the right side of the synchronous adjusting component are both connected with a discharging control board for preliminarily controlling the discharging width of the forming equipment.
Further, the forming equipment comprises a feeding cylinder, a cavity and a discharging groove; the feeding cylinder is fixedly connected above the cavity; a discharge chute is arranged below the cavity.
Further, the synchronous adjusting assembly comprises a driving assembly, two synchronous assemblies and two adjusting assemblies; the driving component is fixedly connected to the side wall of the front side of the forming equipment; the two synchronous components are respectively and fixedly connected to the left side and the right side of the output end of the driving component; the two adjusting components are respectively and fixedly connected to the side walls at the left side and the right side of the forming equipment; the two synchronous components are fixedly connected with the rotatable parts of the left adjusting component and the right adjusting component respectively; the fixed ends of the two synchronous components are respectively and fixedly connected with the front sides of the side walls on the left side and the right side of the forming equipment.
Further, the driving component is fixedly connected to the middle section of the side wall of the front side of the forming equipment.
Still further, the drive assembly includes a motor, a first drive rod, a first bevel gear, and a second bevel gear; the motor is fixedly connected to the side wall of the front side of the forming equipment; the first driving rod is fixedly connected with the output end of the motor; the first bevel gear is fixedly connected with the first driving rod; the second bevel gear is in meshed connection with the first bevel gear; the first bevel gear and the second bevel gear are perpendicular to each other; the second bevel gear is fixedly connected with the rotating end of the synchronous component.
Further, the synchronous component comprises a second driving rod, a second driving rod fixing frame, a driving wheel, a driven wheel and a belt; the second driving rod fixing frame is fixedly connected to the side wall, far away from the motor, of the forming equipment; the second driving rod penetrates through the second driving rod fixing frame and is rotationally connected with the second driving rod fixing frame; one end of the second driving rod, which is close to the motor, is fixedly connected with the second bevel gear; one end of the second driving rod, which is far away from the motor, is fixedly connected with the driving wheel; the driven wheel is in transmission connection with the driving wheel through a belt; the driven wheel is fixedly connected with a rotatable part of the adjusting assembly.
Further, the adjusting assembly comprises an adjusting screw, three adjusting rods, an adjusting plate, two limiting plates and a V-shaped adjusting plate; the adjusting screw is fixedly connected with the driven wheel; the adjusting screw is rotationally connected with the two limiting plates; the adjusting screw is in threaded connection with the adjusting plate; the three adjusting rods are connected with the adjusting plate in a sliding way; the three adjusting rods are fixedly connected with the two limiting plates; the adjusting screw rod and the three adjusting rods penetrate through the adjusting plate and the two limiting plates; a limiting plate close to the motor is fixedly connected to the side wall of the forming equipment; a limiting plate far away from the motor is indirectly fixedly connected with a limiting plate close to the motor through being fixedly connected with three adjusting rods; the adjusting plate is positioned between the two limiting plates; a V-shaped adjusting plate is fixedly connected below the adjusting plate; the V-shaped adjusting plate is connected with the lower end of the forming equipment in a sliding way; and a discharging control plate is fixedly connected in the middle of the V-shaped adjusting plate.
Further, the discharging control plate is fixedly connected in the middle of the V-shaped adjusting plate; the discharging control plate is connected with the discharging groove in a sliding way; the discharging control plate is tightly attached to the discharging groove; the discharging control plate penetrates through the discharging groove from top to bottom.
Advantageous effects
According to the utility model, the synchronous adjusting assembly is driven by electric power to synchronously operate at the left end and the right end of the forming equipment; the synchronous adjusting component drives the discharging control board to move left and right at the lower end of the inner part of the forming equipment; the synchronous adjusting component can continuously adjust the discharging width of the forming equipment; the synchronous adjusting component can synchronously adjust from the left end and the right end of the forming equipment to the middle; the discharging control board can primarily control the discharging width of the forming equipment; the material discharging control board can avoid the retention of the material at the bottom of the forming equipment;
in the utility model, materials in a molten state enter a cavity from a feeding cylinder; the material flows into the discharge chute after a series of processing in the cavity and finally flows out from the bottom of the discharge chute; the discharging width can be well adjusted by controlling the top to bottom of the discharging groove; the driving component drives the synchronous component; the synchronous component drives the adjusting component; the adjusting component is used for adjusting the width of the bottom of the discharge chute of the forming equipment; the driving assembly, the synchronizing assembly and the adjusting assembly are matched, so that the width of the bottom of the discharging chute can be synchronously and continuously adjusted from the left end and the right end to the middle; the V-shaped adjusting plate drives the discharging control plate to slide in the discharging groove; the discharging control plate can control the width of the material entering the discharging groove from the cavity; the discharging control board can primarily control the discharging width of the forming equipment; the discharge control board can avoid the material to stay above the bottom of the discharge chute.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a perspective view of a main structure of a cavity width adjusting device of a film extrusion apparatus according to the present utility model;
FIG. 2 is a front view of a die cavity width adjusting device of a film extrusion apparatus according to the present utility model;
FIG. 3 is a left side view showing the structure of a cavity width adjusting device of a film extrusion apparatus according to the present utility model;
FIG. 4 is a perspective view of a cavity width adjusting device for film extrusion equipment according to the second embodiment of the present utility model;
fig. 5 is a structural cross-sectional view of a cavity width adjusting device of a film extrusion apparatus according to the present utility model.
Reference numerals in the drawings represent respectively:
1. a molding device; 11. a feed cylinder; 12. a cavity; 13. a discharge chute; 2. a synchronization adjustment assembly; 21. a drive assembly; 211. a motor; 212. a first driving lever; 213. a first bevel gear; 214. a second bevel gear; 22. a synchronization component; 221. a second driving lever; 222. the second driving rod fixing frame; 223. a driving wheel; 224. driven wheel; 225. a belt; 23. an adjustment assembly; 231. adjusting a screw; 232. an adjusting rod; 233. an adjusting plate; 234. a limiting plate; 235. a V-shaped adjusting plate; 3. and a discharging control plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model is further described below with reference to examples.
In some embodiments, referring to fig. 1-5 of the specification, a film extrusion apparatus cavity width adjustment device comprises a synchronization adjustment assembly 2;
the synchronous adjusting components 2 are arranged at the left end and the right end of the bottom of the forming equipment 1;
the left and right sides of the synchronous adjusting component 2 are connected with a discharging control board 3 for primarily controlling the discharging width of the forming equipment 1;
in the embodiment of the utility model, the synchronous regulating component 2 is driven by electric power and synchronously operates at the left end and the right end of the forming equipment 1; the synchronous adjusting component 2 drives the discharging control board 3 to move in the left-right direction at the lower end of the inner part of the forming equipment 1;
in the embodiment of the utility model, the synchronous adjusting component 2 can continuously adjust the discharging width of the forming equipment 1; the synchronous adjusting component 2 can synchronously adjust from the left end and the right end of the forming equipment 1 to the middle; the discharging control board 3 can primarily control the discharging width of the forming equipment 1; the material can be prevented from being detained at the bottom of the forming equipment 1 by the material discharging control board 3;
in one embodiment of the utility model, the forming apparatus 1 comprises a feed cylinder 11, a cavity 12 and a discharge chute 13; the feeding cylinder 11 is fixedly connected above the cavity 12; a discharge chute 13 is arranged below the cavity 12;
in the embodiment of the utility model, materials in a molten state enter the cavity 12 from the feed cylinder 11; the material flows into the discharge chute 13 after a series of processing in the cavity 12 and finally flows out from the bottom of the discharge chute 13;
in the embodiment of the utility model, the discharging width can be well adjusted by controlling the discharging chute 13 from top to bottom;
the synchronous regulating assembly 2 comprises a driving assembly 21, two synchronous assemblies 22 and two regulating assemblies 23; the driving component 21 is fixedly connected to the side wall of the front side of the forming equipment 1; the two synchronous assemblies 22 are respectively and fixedly connected to the left side and the right side of the output end of the driving assembly 21; the two adjusting components 23 are respectively and fixedly connected to the side walls on the left side and the right side of the forming equipment 1; the two synchronous assemblies 22 are fixedly connected with the rotatable parts of the left and right adjusting assemblies 23 respectively; the fixed ends of the two synchronous components 22 are fixedly connected with the front sides of the side walls on the left side and the right side of the forming equipment 1 respectively;
preferably, the driving component 21 is fixedly connected to the middle section of the side wall of the front side of the forming equipment 1;
in the embodiment of the present utility model, the driving component 21 drives the synchronization component 22; the synchronous component 22 drives the adjusting component 23; the adjusting component 23 adjusts the width of the bottom of the discharge chute 13 of the forming equipment 1;
in the embodiment of the utility model, the driving component 21, the synchronizing component 22 and the adjusting component 23 are matched, so that the width of the bottom of the discharging chute 13 can be synchronously and continuously adjusted from the left end to the right end to the middle;
the drive assembly 21 includes a motor 211, a first drive rod 212, a first bevel gear 213, and a second bevel gear 214; the motor 211 is fixedly connected to the side wall of the front side of the forming equipment 1; the first driving rod 212 is fixedly connected with the output end of the motor 211; the first bevel gear 213 is fixedly connected with the first driving rod 212; the second bevel gear 214 is in meshed connection with the first bevel gear 213; the first bevel gear 213 and the second bevel gear 214 are perpendicular to each other; the second bevel gear 214 is fixedly connected to the rotating end of the synchronizing assembly 22;
in the embodiment of the present utility model, the motor 211 drives the first driving rod 212 to rotate; the first driving rod 212 drives the first bevel gear 213 to rotate; the first bevel gear 213 drives the second bevel gear 214 to rotate;
in the embodiment of the present utility model, the rotation ends of the left and right synchronization assemblies 22 can be synchronously rotated by the adjustment of the first bevel gear 213 and the second bevel gear 214 under the driving of the motor 211 and the first driving rod 212;
the synchronization assembly 22 comprises a second driving rod 221, a second driving rod fixing frame 222, a driving wheel 223, a driven wheel 224 and a belt 225; the second driving rod fixing frame 222 is fixedly connected to the side wall, far away from the motor 211, of the forming equipment 1; the second driving rod 221 penetrates through the second driving rod fixing frame 222 and is rotationally connected with the second driving rod fixing frame 222; one end of the second driving rod 221, which is close to the motor 211, is fixedly connected with the second bevel gear 214; one end of the second driving rod 221, which is far away from the motor 211, is fixedly connected with a driving wheel 223; the driven wheel 224 is in transmission connection with the driving wheel 223 through a belt 225; the driven wheel 224 is fixedly connected with a rotatable part of the adjusting assembly 23;
in the embodiment of the present utility model, the second driving rod 221 rotates under the driving of the second bevel gear 214; the second driving rod fixing frame 222 supports and limits the second driving rod 221; the second driving rod 221 drives the driving wheel 223 to rotate; the driving wheel 223 drives the driven wheel 224 to rotate under the transmission action of the belt 225;
in the embodiment of the utility model, the left and right driven wheels 224 can synchronously rotate to drive the left and right adjusting components 23 to synchronously adjust the discharging width of the forming equipment 1.
In some embodiments, as shown in fig. 1-5, as a preferred embodiment of the present utility model, the adjusting assembly 23 includes an adjusting screw 231, three adjusting rods 232, an adjusting plate 233, two limiting plates 234, and a V-shaped adjusting plate 235; the adjusting screw 231 is fixedly connected with the driven wheel 224; the adjusting screw 231 is rotatably connected with the two limiting plates 234; the adjusting screw 231 is in threaded connection with the adjusting plate 233; three adjusting rods 232 are slidably connected with the adjusting plate 233; three adjusting rods 232 are fixedly connected with two limiting plates 234; the adjusting screw 231 and the three adjusting rods 232 penetrate through the adjusting plate 233 and the two limiting plates 234; a limiting plate 234 close to the motor 211 is fixedly connected to the side wall of the forming device 1; a limiting plate 234 far away from the motor 211 is indirectly fixedly connected with a limiting plate 234 close to the motor 211 through being fixedly connected with three adjusting rods 232; the adjusting plate 233 is positioned between the two limiting plates 234; a V-shaped adjusting plate 235 is fixedly connected below the adjusting plate 233; the V-shaped adjusting plate 235 is in sliding connection with the lower end of the forming equipment 1; the middle of the V-shaped adjusting plate 235 is fixedly connected with a discharging control plate 3;
in the embodiment of the utility model, the driven wheel 224 rotates to drive the adjusting screw 231 to rotate; the adjusting screw 231 rotates to drive the adjusting plate 233 to horizontally move in the left-right direction; the adjusting plate 233 drives the V-shaped adjusting plate 235 to horizontally slide along the lower end of the forming equipment 1; the three adjusting rods 232 fix the two limiting plates 234 and support and limit the adjusting plates 233; two limiting plates 234 limit the adjusting plate 233;
in the embodiment of the utility model, under the drive of the adjusting screw 231, the V-shaped adjusting plate 235 horizontally slides along the lower end of the forming equipment 1 under the guidance and limitation of the three adjusting rods 232 and the two limiting plates 234; the V-shaped adjusting plate 235 can synchronously and continuously adjust the width of the bottom of the discharging chute 13.
In some embodiments, as shown in fig. 1-5, as a preferred embodiment of the present utility model, the discharging control plate 3 is fixedly connected between the V-shaped adjusting plates 235; the discharging control plate 3 is in sliding connection with the discharging groove 13; the discharging control plate 3 is tightly attached to the discharging groove 13; the discharging control plate 3 penetrates through the discharging groove 13 from top to bottom;
in the embodiment of the utility model, the V-shaped adjusting plate 235 drives the discharging control plate 3 to slide in the discharging chute 13; the discharging control plate 3 can control the width of the material entering the discharging groove 13 from the cavity 12;
in the embodiment of the utility model, the discharging control board 3 can primarily control the discharging width of the forming equipment 1; the discharge control plate 3 can prevent the material from staying above the bottom of the discharge chute 13.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The utility model provides a film extrusion equipment die cavity width adjusting device, includes synchronous regulation subassembly (2), its characterized in that:
the synchronous adjusting components (2) are arranged at the left end and the right end of the bottom of the forming equipment (1);
the left side and the right side of the synchronous adjusting component (2) are connected with a discharging control board (3) for primarily controlling the discharging width of the forming equipment (1);
the synchronous adjusting assembly (2) comprises a driving assembly (21), two synchronous assemblies (22) and two adjusting assemblies (23); the driving component (21) is fixedly connected to the side wall of the front side of the forming equipment (1); the two synchronous assemblies (22) are respectively and fixedly connected to the left side and the right side of the output end of the driving assembly (21); the two adjusting components (23) are respectively and fixedly connected to the side walls of the left side and the right side of the forming equipment (1); the two synchronous assemblies (22) are fixedly connected with the rotatable parts of the left and right adjusting assemblies (23) respectively; the fixed ends of the two synchronous components (22) are respectively and fixedly connected with the front sides of the side walls on the left side and the right side of the forming equipment (1).
2. The film extrusion apparatus cavity width adjustment device according to claim 1, characterized in that the forming apparatus (1) comprises a feed cylinder (11), a cavity (12) and a discharge chute (13); the feeding cylinder (11) is fixedly connected above the cavity (12); a discharge chute (13) is arranged below the cavity (12).
3. The film extrusion apparatus cavity width adjustment device according to claim 2, wherein the driving assembly (21) is fixedly connected to a middle section of a front side wall of the forming apparatus (1).
4. A film extrusion apparatus cavity width adjustment device according to claim 3, characterized in that the drive assembly (21) comprises a motor (211), a first drive rod (212), a first bevel gear (213) and a second bevel gear (214); the motor (211) is fixedly connected to the side wall of the front side of the forming equipment (1); the first driving rod (212) is fixedly connected with the output end of the motor (211); the first bevel gear (213) is fixedly connected with the first driving rod (212); the second bevel gear (214) is meshed with the first bevel gear (213); the first bevel gear (213) and the second bevel gear (214) are perpendicular to each other; the second bevel gear (214) is fixedly connected with the rotating end of the synchronous assembly (22).
5. The film extrusion apparatus cavity width adjustment device according to claim 4, wherein the synchronization assembly (22) comprises a second drive rod (221), a second drive rod holder (222), a drive wheel (223), a driven wheel (224), and a belt (225); the second driving rod (221) penetrates through the second driving rod fixing frame (222) and is rotationally connected with the second driving rod fixing frame (222); one end of the second driving rod (221) close to the motor (211) is fixedly connected with the second bevel gear (214); one end of the second driving rod (221) far away from the motor (211) is fixedly connected with the driving wheel (223); the driven wheel (224) is in transmission connection with the driving wheel (223) through a belt (225); the driven wheel (224) is fixedly connected with a rotatable part of the adjusting assembly (23).
6. The film extrusion apparatus cavity width adjustment apparatus as recited in claim 5, wherein said second driving rod fixing frame (222) is fixedly connected to a side wall of the molding apparatus (1) remote from the motor (211).
7. The film extrusion apparatus cavity width adjustment device according to claim 6, wherein the adjustment assembly (23) comprises an adjustment screw (231), three adjustment rods (232), an adjustment plate (233), two limiting plates (234), and a V-shaped adjustment plate (235); the adjusting screw (231) is fixedly connected with the driven wheel (224); the adjusting screw (231) is rotationally connected with the two limiting plates (234); the adjusting screw (231) is in threaded connection with the adjusting plate (233); three adjusting rods (232) are in sliding connection with the adjusting plate (233); the three adjusting rods (232) are fixedly connected with the two limiting plates (234); the adjusting screw (231) and the three adjusting rods (232) penetrate through the adjusting plate (233) and the two limiting plates (234); a limiting plate (234) far away from the motor (211) is indirectly and fixedly connected with a limiting plate (234) close to the motor (211) through being fixedly connected with three adjusting rods (232); the adjusting plate (233) is positioned between the two limiting plates (234); a V-shaped adjusting plate (235) is fixedly connected below the adjusting plate (233); the V-shaped adjusting plate (235) is in sliding connection with the lower end of the forming equipment (1); and a discharging control board (3) is fixedly connected in the middle of the V-shaped adjusting board (235).
8. The film extrusion apparatus cavity width adjustment apparatus as recited in claim 7, wherein a limiting plate (234) adjacent to the motor (211) is fixedly attached to the sidewall of the molding apparatus (1).
9. The film extrusion apparatus cavity width adjustment device according to claim 8, wherein the discharge control plate (3) is fixedly connected in the middle of the V-shaped adjusting plate (235); the discharging control plate (3) is in sliding connection with the discharging groove (13); the discharging control plate (3) is tightly attached to the discharging groove (13); the discharging control plate (3) penetrates through the discharging groove (13) from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261992.4U CN220129469U (en) | 2023-05-24 | 2023-05-24 | Film extrusion equipment die cavity width adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261992.4U CN220129469U (en) | 2023-05-24 | 2023-05-24 | Film extrusion equipment die cavity width adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220129469U true CN220129469U (en) | 2023-12-05 |
Family
ID=88963237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321261992.4U Active CN220129469U (en) | 2023-05-24 | 2023-05-24 | Film extrusion equipment die cavity width adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220129469U (en) |
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2023
- 2023-05-24 CN CN202321261992.4U patent/CN220129469U/en active Active
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