CN219165035U - Control box cooling mechanism - Google Patents
Control box cooling mechanism Download PDFInfo
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- CN219165035U CN219165035U CN202223500574.4U CN202223500574U CN219165035U CN 219165035 U CN219165035 U CN 219165035U CN 202223500574 U CN202223500574 U CN 202223500574U CN 219165035 U CN219165035 U CN 219165035U
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- control box
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- filter screen
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The utility model discloses a control box heat dissipation mechanism which is used for realizing rapid disassembly and cleaning of a filter screen; including the control box, both ends are provided with the opening respectively about the control box, be provided with the fan in every group opening respectively, still include U type cardboard, prop up the frame, the filter screen, clamping mechanism and detaching mechanism, both ends are provided with U type cardboard respectively about the control box, be provided with U type draw-in groove on every group U type cardboard respectively, prop up the frame inside and be provided with the filter screen, the bottom at both ends all is provided with hypotenuse portion No. one around the filter screen, both ends are provided with clamping mechanism respectively about the control box, be provided with detaching mechanism on the prop up the frame, both ends are provided with the card hole respectively around the prop up the frame.
Description
Technical Field
The utility model relates to the technical field of control boxes, in particular to a control box heat dissipation mechanism.
Background
The control box has many electric elements inside, and good heat dissipation performance is required. In the prior art, heat is dissipated in an air cooling mode, but the inside of the control box is directly communicated with the outside air, so that dust in the air enters the control box, and adverse effects are caused on electrical elements.
In the prior art, the Chinese patent with the bulletin number of CN209914364U discloses a control box heat radiation structure, which comprises a box body and a fan, wherein the surface of the box body is provided with the fan, the fan comprises a main shaft, a plurality of blades and a fixed ring, the main shaft is provided with a plurality of jacks, one end of each blade is fixedly connected with a cylindrical pin, the cylindrical pin is arranged in each jack, the other end of each blade is provided with a sliding block, the inner side of the fixed ring is provided with a sliding rail, the sliding blocks are arranged in the sliding rails, and the sliding rails are provided with circumferential parts and inclined parts.
During the use, when the fan starts, the main shaft rotates to drive the blade, and the sliding block of the blade can incline along the sliding movement of the fixed ring. Under the above state, as the filter screen is arranged on the outer side of the fixed ring, the fan introduces external low-temperature air into the control box, so that the heat dissipation effect is achieved. Meanwhile, the filter screen filters dust in the air, when the fan is stopped, the main shaft stops rotating, the fixing ring can enable the sliding blocks of the blades to reversely slide due to inertia, the blades are enabled to be restored to a horizontal state, the fan is closed, but in the use process, the filter screen of the device cannot be detached, the filter screen is used for a long time, dust can be adhered to the filter screen, dust on the filter screen needs to be cleaned, the filter screen cannot be detached, the brush is directly used for cleaning dust outside the filter screen, and the dust on the filter screen enters the control box through the filter holes of the filter screen under the action of the brush, so that the service life of components in the control box is influenced.
Disclosure of Invention
The utility model aims to provide a control box heat dissipation mechanism with prolonged service life.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
The control box heat dissipation mechanism comprises a control box, wherein openings are respectively formed in the left end and the right end of the control box, fans are respectively arranged in each group of openings, a U-shaped clamping plate, a support frame, a filter screen, a clamping mechanism and a disassembling mechanism are further included, the left end and the right end of the control box are respectively provided with the U-shaped clamping plate, each group of U-shaped clamping plates is respectively provided with a U-shaped clamping groove, the filter screen is arranged in the support frame, the bottoms of the front end and the rear end of the filter screen are respectively provided with a first bevel edge part, the left end and the right end of the control box are respectively provided with the clamping mechanism, the support frame is provided with the disassembling mechanism, and the front end and the rear end of the support frame are respectively provided with clamping holes; inserting the frame into the U-shaped clamping groove, supporting the frame by the U-shaped clamping plate and the U-shaped clamping groove, clamping the frame through two groups of clamping mechanisms respectively with clamping holes corresponding to the front end and the rear end of the two groups of frames, so that the frame and the filter screen are fixed, the filter screen is matched with the frame to seal the opening, a fan is started, external low-temperature air enters the controller to perform heat dissipation and cooling operation after being filtered by the filter screen, when more dust is adhered on the filter screen, a worker makes the clamping mechanisms far away from the clamping holes through a dismounting mechanism, the filter screen is pulled away from the U-shaped clamping groove by the frame, and the worker can re-install the filter screen after cleaning the filter screen again by using a hairbrush.
Preferably, the clamping mechanism comprises fixing blocks, a first spring, sliding blocks and inserting rods, wherein the two groups of fixing blocks are arranged on one side of the control box, chambers are respectively arranged in the two groups of fixing blocks, the sliding blocks are respectively arranged in each group of chambers in a sliding manner, the first spring is respectively arranged between the outer ends of the two groups of sliding blocks and the outer ends of the two groups of chambers, the inserting rods are respectively arranged at the inner ends of the two groups of sliding blocks, the inner ends of the two groups of inserting rods respectively extend to the positions between the two groups of fixing blocks, and the inserting rods are matched with the clamping holes; when the filter screen is completely slid into the U-shaped clamping groove, the axes of the inserting rods are coincident with the axes of the clamping holes, and the two inserting rods are respectively inserted into the corresponding clamping holes under the cooperation of the corresponding spring and the sliding block to finish the installation.
Preferably, the dismounting mechanism comprises a push rod, connecting rods, square rods and a second spring, wherein an inner cavity is formed in the support frame, the inner cavity is arranged above the filter screen, through holes are respectively formed in the left end and the right end of the support frame, the two groups of through holes are communicated with the inner cavity, the bottom end of the square rod extends from the upper part of the support frame to the inner cavity and is connected with the top end of the second spring, the bottom end of the second spring is connected with the bottom end of the inner cavity, the push rods are respectively and slidably arranged on each group of through holes, the inner ends of the two groups of push rods are respectively hinged with one ends of the two groups of connecting rods in the inner cavity, the other ends of the two groups of connecting rods are respectively hinged with the left end and the right end of the square rod in the cavity, and the radius of the through holes is smaller than the radius of the clamping holes; when the filter screen needs to be disassembled, a worker presses down the square rod, so that the square rod drives the other ends of the two groups of connecting rods to move downwards in the inner cavity, one ends of the two groups of connecting rods drive the two groups of ejector rods to move away from the mirror image under the cooperation of the two groups of through holes, the outer ends of the two groups of ejector rods eject out of corresponding clamping holes respectively, the worker pulls the supporting frame upwards, eccentric operation is caused between the clamping holes and the axes of the inserting rods, then the worker releases the square rod, so that the square rod moves upwards under the cooperation of 19, the outer ends of the two groups of ejector rods return to the through holes again, and meanwhile, the inserting rods cannot clamp the supporting frame through the clamping holes due to the eccentricity of the inserting rods and the clamping holes, so that the filter screen is separated from the U-shaped clamping grooves, and convenience is improved.
Preferably, the device further comprises a pressing plate, and the top end of the square rod is provided with the pressing plate; staff presses square pole through pressing plate, increases the area of contact of pressing.
Preferably, the novel socket further comprises a second bevel edge part, and the top of the inner end of the inserted link is provided with the second bevel edge part; when the support frame is inserted into the U-shaped clamping groove, the two groups of first bevel edge parts are respectively contacted with the two groups of second bevel edge parts, so that the two groups of second bevel edge parts respectively drive the corresponding inserted bars to mirror image and move away from each other.
Preferably, the inner side wall of the support frame is provided with an anti-slip coating; the inside wall of frame is provided with anti-skidding coating, makes the staff install and dismantle the filter screen through the frame, reduces the condition of taking off the hand.
By adopting the technical scheme, the utility model has the following technical progress.
According to the utility model, the support frame is inserted into the U-shaped clamping groove, the U-shaped clamping plate and the U-shaped clamping groove are mutually matched to support the support frame, clamping operation is carried out on the support frame and the filter screen through the clamping holes corresponding to the front end and the rear end of the two groups of support frames respectively by the two groups of clamping mechanisms, so that the support frame and the filter screen are fixed, the filter screen and the support frame are mutually matched to seal an opening, a fan is started, so that external low-temperature air enters the controller to carry out heat dissipation and cooling operation after being filtered by the filter screen, when more dust adheres to the filter screen, a worker leaves the clamping mechanism from the clamping holes through the dismounting mechanism, the filter screen is pulled out from the U-shaped clamping groove by the support frame, and the worker can be reinstalled after the filter screen is cleared again by using a hairbrush.
Drawings
FIG. 1 is a schematic illustration of an axially measured structure of the present utility model;
FIG. 2 is a schematic view in partial cross-section of the right side view of the present utility model;
FIG. 3 is a partially enlarged schematic view of the structure of the portion A in FIG. 2;
FIG. 4 is a partially enlarged schematic view of the structure of the portion B in FIG. 2;
FIG. 5 is an enlarged schematic view of the structure of the frame and the filter screen;
FIG. 6 is an enlarged schematic view of the U-shaped card and U-shaped card slot configuration;
wherein: 1. a control box; 2. a U-shaped clamping plate; 3. a U-shaped clamping groove; 4. a clamping hole; 5. a frame is supported; 6. a filter screen; 7. a first bevel edge portion; 8. a fixed block; 9. a chamber; 10. a first spring; 11. a slide block; 12. a rod; 13. an inner cavity; 14. a push rod; 15. a connecting rod; 16. square bar; 17. a through hole; 18. a second spring; 20. pressing the plate; 21. and a second bevel edge part.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
Example 1
As shown in fig. 1, fig. 2, fig. 5 and fig. 6, the control box heat dissipation mechanism of the utility model comprises a control box 1, openings are respectively arranged at the left end and the right end of the control box 1, fans are respectively arranged in each group of openings, the control box further comprises a U-shaped clamping plate 2, a supporting frame 5, a filter screen 6, a clamping mechanism and a dismounting mechanism, the left end and the right end of the control box 1 are respectively provided with the U-shaped clamping plate 2, each group of U-shaped clamping plates 2 is respectively provided with a U-shaped clamping groove 3, the filter screen 6 is arranged in the supporting frame 5, the bottoms of the front end and the rear end of the filter screen 6 are respectively provided with a first bevel edge part 7, the left end and the right end of the control box 1 are respectively provided with the clamping mechanism, the supporting frame 5 is provided with the dismounting mechanism, and the front end and the rear end of the supporting frame 5 are respectively provided with a clamping hole 4.
As shown in fig. 1, fig. 2 and fig. 3, the dismounting mechanism comprises a push rod 14, a connecting rod 15, a square rod 16 and a second spring 18, an inner cavity 13 is arranged in the supporting frame 5, the inner cavity 13 is above the filter screen 6, through holes 17 are respectively formed in the left end and the right end of the supporting frame 5, two groups of through holes 17 are communicated with the inner cavity 13, the bottom end of the square rod 16 extends from the upper side of the supporting frame 5 to the inner cavity 13 and is connected with the top end of the second spring 18, the bottom end of the second spring 18 is connected with the bottom end of the inner cavity 13, push rods 14 are respectively slidably arranged on each group of through holes 17, the inner ends of the two groups of push rods 14 are respectively hinged with one ends of the two groups of connecting rods 15 in the inner cavity 13, the other ends of the two groups of connecting rods 15 are respectively hinged with the left end and the right end of the square rod 16 in the cavity, and the radius of the through holes 17 is smaller than the radius of the clamping holes 4.
As shown in fig. 1, fig. 2 and fig. 4, the dismounting mechanism comprises a push rod 14, a connecting rod 15, a square rod 16 and a second spring 18, an inner cavity 13 is arranged in the supporting frame 5, the inner cavity 13 is above the filter screen 6, through holes 17 are respectively formed in the left end and the right end of the supporting frame 5, two groups of through holes 17 are communicated with the inner cavity 13, the bottom end of the square rod 16 extends from the upper side of the supporting frame 5 to the inner cavity 13 and is connected with the top end of the second spring 18, the bottom end of the second spring 18 is connected with the bottom end of the inner cavity 13, push rods 14 are respectively slidably arranged on each group of through holes 17, the inner ends of the two groups of push rods 14 are respectively hinged with one ends of the two groups of connecting rods 15 in the inner cavity 13, the other ends of the two groups of connecting rods 15 are respectively hinged with the left end and the right end of the square rod 16 in the cavity, and the radius of the through holes 17 is smaller than the radius of the clamping holes 4.
In this embodiment, the frame 5 is inserted into the U-shaped slot 3, the U-shaped clamping plate 2 and the U-shaped slot 3 cooperate with each other to support the frame 5, when the frame 5 and the filter screen 6 are installed, the filter screen 6 is slid into the U-shaped slot 3 between the two sets of inserting rods 12, due to the cooperation of the two sets of first bevel edge parts 7, when the filter screen 6 moves downward, the two sets of first bevel edge parts 7 respectively make the two sets of inserting rods 12 mirror away from each other, when the filter screen 6 slides into the U-shaped slot 3 completely, the axes of the inserting rods 12 coincide with the axes of the clamping holes 4, the two sets of inserting rods 12 are respectively inserted into the corresponding clamping holes 4 under the cooperation of the corresponding first springs 10 and the sliding blocks 11 to complete the installation, and the fan is started, so that external low-temperature air is filtered by the filter screen 6 and enters the controller to perform heat dissipation and cooling operations, when more dust adheres to the filter screen 6, a worker presses down the square rod 16, so that the square rod 16 drives the other ends of the two groups of connecting rods 15 to move downwards in the inner cavity 13, one ends of the two groups of connecting rods 15 respectively drive the two groups of ejector rods 14 to move away from each other in a mirror image mode under the cooperation of the two groups of through holes 17, the outer ends of the two groups of ejector rods 14 respectively eject the inner ends of the two groups of inserted rods 12 into corresponding clamping holes 4, the worker pulls the support frame 5 upwards, so that eccentric operation occurs between the clamping holes 4 and the axes of the inserted rods 12, then the worker releases the square rod 16, so that the square rod 16 moves upwards under the cooperation of 19, so that the outer ends of the two groups of ejector rods 14 return to the through holes 17 again, meanwhile, the inserted rods 12 and the clamping holes 4 cannot clamp the support frame 5, and the worker continues to pull the support frame 5 upwards, thereby the filter screen 6 is separated from the U-shaped clamping groove 3.
Example 2
As shown in fig. 1, fig. 2, fig. 5 and fig. 6, the control box heat dissipation mechanism of the utility model comprises a control box 1, openings are respectively arranged at the left end and the right end of the control box 1, fans are respectively arranged in each group of openings, the control box further comprises a U-shaped clamping plate 2, a supporting frame 5, a filter screen 6, a clamping mechanism and a dismounting mechanism, the left end and the right end of the control box 1 are respectively provided with the U-shaped clamping plate 2, each group of U-shaped clamping plates 2 is respectively provided with a U-shaped clamping groove 3, the filter screen 6 is arranged in the supporting frame 5, the bottoms of the front end and the rear end of the filter screen 6 are respectively provided with a first bevel edge part 7, the left end and the right end of the control box 1 are respectively provided with the clamping mechanism, the supporting frame 5 is provided with the dismounting mechanism, and the front end and the rear end of the supporting frame 5 are respectively provided with a clamping hole 4.
As shown in fig. 1, fig. 2 and fig. 3, the dismounting mechanism comprises a push rod 14, a connecting rod 15, a square rod 16 and a second spring 18, an inner cavity 13 is arranged in the supporting frame 5, the inner cavity 13 is above the filter screen 6, through holes 17 are respectively formed in the left end and the right end of the supporting frame 5, two groups of through holes 17 are communicated with the inner cavity 13, the bottom end of the square rod 16 extends from the upper side of the supporting frame 5 to the inner cavity 13 and is connected with the top end of the second spring 18, the bottom end of the second spring 18 is connected with the bottom end of the inner cavity 13, push rods 14 are respectively slidably arranged on each group of through holes 17, the inner ends of the two groups of push rods 14 are respectively hinged with one ends of the two groups of connecting rods 15 in the inner cavity 13, the other ends of the two groups of connecting rods 15 are respectively hinged with the left end and the right end of the square rod 16 in the cavity, and the radius of the through holes 17 is smaller than the radius of the clamping holes 4.
As shown in fig. 1, fig. 2 and fig. 4, the dismounting mechanism comprises a push rod 14, a connecting rod 15, a square rod 16 and a second spring 18, an inner cavity 13 is arranged in the supporting frame 5, the inner cavity 13 is above the filter screen 6, through holes 17 are respectively formed in the left end and the right end of the supporting frame 5, two groups of through holes 17 are communicated with the inner cavity 13, the bottom end of the square rod 16 extends from the upper side of the supporting frame 5 to the inner cavity 13 and is connected with the top end of the second spring 18, the bottom end of the second spring 18 is connected with the bottom end of the inner cavity 13, push rods 14 are respectively slidably arranged on each group of through holes 17, the inner ends of the two groups of push rods 14 are respectively hinged with one ends of the two groups of connecting rods 15 in the inner cavity 13, the other ends of the two groups of connecting rods 15 are respectively hinged with the left end and the right end of the square rod 16 in the cavity, and the radius of the through holes 17 is smaller than the radius of the clamping holes 4.
As shown in fig. 3 and 4, the square rod 16 further comprises a pressing plate 20 and a second inclined edge part 21, the pressing plate 20 is arranged at the top end of the square rod 16, and the second inclined edge part 21 is arranged at the top of the inner end of the inserted rod 12.
In this embodiment, the frame 5 is inserted into the U-shaped slot 3, the U-shaped clamping plate 2 and the U-shaped slot 3 cooperate with each other to support the frame 5, when the frame 5 and the filter screen 6 are installed, the filter screen 6 is slid into the U-shaped slot 3 between the two sets of inserting rods 12, due to the cooperation of the two sets of first-order bevel edge portions 7, the two sets of first-order bevel edge portions 7 are respectively contacted with the two sets of second-order bevel edge portions 21, so that the two sets of second-order bevel edge portions 21 respectively drive the corresponding inserting rods 12 to mirror away from each other, when the filter screen 6 is completely slid into the U-shaped slot 3, the axes of the inserting rods 12 coincide with the axes of the clamping holes 4, the two sets of inserting rods 12 are respectively inserted into the corresponding clamping holes 4 under the cooperation of the corresponding first-order springs 10 and the sliding blocks 11, the fan is started, and the external low-temperature air is filtered by the filter screen 6 and then enters the controller to perform heat dissipation and cooling operations, when more dust adheres to the filter screen 6, the staff presses down the square rod 16 through the pressing plate 20, so that the square rod 16 drives the other ends of the two groups of connecting rods 15 to move downwards in the inner cavity 13, one ends of the two groups of connecting rods 15 respectively drive the two groups of ejector rods 14 to move away from mirror images under the cooperation of the two groups of through holes 17, the outer ends of the two groups of ejector rods 14 respectively eject the inner ends of the two groups of inserted rods 12 into corresponding clamping holes 4, the staff pulls the support frame 5 upwards, so that eccentric operation occurs between the clamping holes 4 and the axes of the inserted rods 12, then the staff releases the square rod 16, so that the square rod 16 moves upwards under the cooperation of 19, so that the outer ends of the two groups of ejector rods 14 return to the through holes 17 again, meanwhile, because the inserted rods 12 are eccentric with the clamping holes 4, the inserted rods 12 can not clamp the support frame 5, and the staff continues to pull the support frame 5 upwards, thereby the filter screen 6 is separated from the U-shaped clamping groove 3.
The control box 1, the U-shaped clamping plate 2, the U-shaped clamping groove 3, the fan and the supporting frame 5 are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached use instruction without creative labor of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The utility model provides a control box cooling mechanism, including control box (1), both ends are provided with the opening respectively about control box (1), be provided with the fan in every group opening respectively, a serial communication port, still include U type cardboard (2), prop up frame (5), filter screen (6), clamping mechanism and detaching mechanism, both ends are provided with U type cardboard (2) respectively about control box (1), be provided with U type draw-in groove (3) on every group U type cardboard (2) respectively, prop up frame (5) inside is provided with filter screen (6), the bottom at both ends all is provided with hypotenuse portion (7) around filter screen (6), both ends are provided with clamping mechanism respectively about control box (1), be provided with detaching mechanism on prop up frame (5), both ends are provided with draw-in hole (4) respectively around prop up frame (5).
2. The control box heat dissipation mechanism according to claim 1, wherein the clamping mechanism comprises fixing blocks (8), a number spring (10), sliding blocks (11) and inserting rods (12), the two groups of fixing blocks (8) are arranged on one side of the control box (1), chambers (9) are respectively arranged in the two groups of fixing blocks (8), sliding blocks (11) are respectively arranged in each group of chambers (9) in a sliding manner, a number spring (10) is respectively arranged between the outer ends of the two groups of sliding blocks (11) and the outer ends of the two groups of chambers, inserting rods (12) are respectively arranged at the inner ends of the two groups of sliding blocks (11), the inner ends of the two groups of inserting rods (12) are respectively extended between the two groups of fixing blocks (8), and the inserting rods (12) are matched with the clamping holes (4).
3. The control box heat dissipation mechanism according to claim 1, wherein the dismounting mechanism comprises a push rod (14), connecting rods (15), square rods (16) and a second spring (18), an inner cavity (13) is formed in the support frame (5), the inner cavity (13) is arranged above the filter screen (6), through holes (17) are formed in the left end and the right end of the support frame (5) respectively, the two groups of through holes (17) are communicated with the inner cavity (13), the bottom ends of the square rods (16) extend from the upper side of the support frame (5) to the inner cavity (13) and are connected with the top ends of the second spring (18), the bottom ends of the second spring (18) are connected with the bottom ends of the inner cavity (13), the push rod (14) is arranged on each group of through holes (17) in a sliding mode, the inner ends of the two groups of push rods (14) are hinged with one ends of the two groups of connecting rods (15) respectively, the other ends of the two groups of connecting rods (15) are hinged with the left end and the right end of the square rods (16) respectively in the cavity, and the radius of the through holes (17) is smaller than that of the clamping hole (4).
4. A control box heat dissipation mechanism according to claim 3, further comprising a pressing plate (20), wherein the pressing plate (20) is provided at the top end of the square rod (16).
5. A control box heat dissipation mechanism according to claim 2, further comprising a second sloping side portion (21), wherein the top of the inner end of the plunger (12) is provided with the second sloping side portion (21).
6. A control box heat dissipation mechanism according to claim 1, characterized in that the inner side wall of the support frame (5) is provided with an anti-slip coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223500574.4U CN219165035U (en) | 2022-12-27 | 2022-12-27 | Control box cooling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223500574.4U CN219165035U (en) | 2022-12-27 | 2022-12-27 | Control box cooling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219165035U true CN219165035U (en) | 2023-06-09 |
Family
ID=86615051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223500574.4U Active CN219165035U (en) | 2022-12-27 | 2022-12-27 | Control box cooling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219165035U (en) |
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2022
- 2022-12-27 CN CN202223500574.4U patent/CN219165035U/en active Active
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