CN215934802U - Solar photovoltaic power generation and electric precipitation device - Google Patents
Solar photovoltaic power generation and electric precipitation device Download PDFInfo
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- CN215934802U CN215934802U CN202122099743.7U CN202122099743U CN215934802U CN 215934802 U CN215934802 U CN 215934802U CN 202122099743 U CN202122099743 U CN 202122099743U CN 215934802 U CN215934802 U CN 215934802U
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- power generation
- solar photovoltaic
- photovoltaic power
- dust removal
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a solar photovoltaic power generation dust removal device, and relates to the technical field of solar energy. The utility model comprises a bracket, an inclined plate, a movable shell and side supporting plates, wherein the inclined plate is obliquely fixed on the front surface of the bracket, fixed bearings are arranged at the left end and the right end in the movable shell in a penetrating manner, two side supporting plates are arranged in an equal specification, and the two side supporting plates are respectively fixed on the left end surface and the right end surface of the inclined plate. According to the utility model, the movable shell is pushed to move on the front surfaces of the inclined plate and the solar photovoltaic power generation plate by the two electric telescopic rods, so that the front surfaces of the inclined plate and the solar photovoltaic power generation plate are sprayed with atomized water drops from top to bottom, then the rotating dust removing roller is indirectly driven by the two electric telescopic rods to move, and the front surfaces of the inclined plate and the solar photovoltaic power generation plate are cleaned by spraying water beads.
Description
Technical Field
The utility model belongs to the technical field of solar energy, and particularly relates to a solar photovoltaic power generation electric dust removal device.
Background
With the development of economy and the progress of society, people put forward higher and higher requirements on energy, the search for new energy becomes an urgent subject facing human at present, solar energy is clean renewable new energy, is more and more restricted by the favor of people and the like, and has the advantage that other power generation means can not be replaced. The existing solar photovoltaic panel is placed outdoors in the using process, but a large amount of dust is generated on the surface of the solar photovoltaic panel after long-time use, and the dust accumulation is an important reason for instability of the generating efficiency of the photovoltaic panel, so that the generating efficiency of the photovoltaic panel is reduced, and the use of people is influenced.
In order to solve the problems, the utility model provides a solar photovoltaic power generation electric dust removal device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a solar photovoltaic power generation electric dust removal device, which solves the problems that the existing solar photovoltaic panel is placed outdoors in the use process, but a large amount of dust is generated on the surface of the solar photovoltaic panel after long-time use, and the dust accumulation is an important reason causing the instability of the power generation efficiency of the photovoltaic panel, so that the power generation efficiency of the photovoltaic panel is reduced, and the use of people is influenced.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a solar photovoltaic power generation dust removing device, which comprises a bracket, an inclined plate, a movable shell and side supporting plates, wherein the inclined plate is obliquely fixed on the front surface of the bracket, fixed bearings are arranged at the left end and the right end of the inside of the movable shell in a penetrating manner, two side supporting plates are arranged in a regular manner, the two side supporting plates are respectively fixed on the left end surface and the right end surface of the inclined plate, a solar photovoltaic power generation plate is arranged on the front surface of the inclined plate, a first strip-shaped chute is longitudinally arranged at the left end of the front surface of the inclined plate, a second strip-shaped chute is longitudinally arranged at the right end of the front surface of the inclined plate, electric telescopic rods are fixed at the left side and the right side of the upper end of the front surface of the inclined plate, the two electric telescopic rods are respectively positioned at the uppermost ends of the front surfaces of the first strip-shaped chute and the second strip-shaped chute, the movable shell is fixed on the lower end surface of the two electric telescopic rods, specifications such as two first universal balls are arranged at the left end of the lower surface of the movable shell, two universal balls and the like are arranged at the right end of the lower surface of the movable shell, the lower ends of two first universal balls are positioned in the first strip-shaped sliding groove, the lower ends of two second universal balls are positioned in the second strip-shaped sliding groove, the dust removal motor is arranged on the right end surface of the movable shell, the dust removal roller is transversely arranged in the movable shell, the dust removal roller is in transmission connection with the dust removal motor through two fixed bearings, the dust removal roller is attached to the front surface of the solar photovoltaic power generation panel and the front surface of the inclined plate, the four corners of the bottom of the support are respectively provided with a leveling mechanism, the lower end of the front surface of the movable shell is provided with an atomizing nozzle, the movable shell is internally provided with a connecting hose, the movable shell, the dust removal roller and the atomizing nozzles can be pushed to move through the two electric telescopic rods, so that the dust removal operation can be carried out on the solar photovoltaic power generation panel, the first universal balls and the second universal balls slide in the first strip-shaped sliding groove and the second strip-shaped sliding groove, make two electric telescopic handle can drive movable housing, dust removal roller and a plurality of atomizer and stably remove, through the dust removal motor and two fixing bearing that set up, can make the dust removal roller stable rotatory to can rotate the dust removal to swash plate and solar photovoltaic electricity generation board front surface.
Further, it is a plurality of atomizer equidistance sets up at activity casing front surface lower extreme, and coupling hose transversely sets up inside the activity casing, through a plurality of atomizer that set up, can soften the dust of swash plate and solar photovoltaic electricity generation board front surface difficult clearance and adsorb to the rotatory dust removal operation of the dust removal roller of being convenient for more.
Further, coupling hose is connected with a plurality of atomizer homogeneous phases, and the coupling hose left end runs through movable shell and is connected with external working shaft, through the coupling hose who sets up, can make a plurality of atomizer supplied water by external working shaft to a plurality of atomizer get hydroenergy to swash plate and solar photovoltaic power generation board front surface blowout atomizing drop of water, thereby be convenient for dust removal operation on next step.
Further, the leveling mechanism comprises a solid rectangular column, the four corners of the bottom of the bracket are fixedly connected with the solid rectangular column, the surface of the solid rectangular column is connected with a hollow rectangular column matched with the solid rectangular column in a sliding manner, the lower end of the hollow rectangular column is arranged in a sealing manner, a threaded rod is connected inside the solid rectangular column in a penetrating manner and in threaded connection, the lower end of the threaded rod is rotatably connected with the inner bottom surface of the hollow rectangular column, a first bevel gear is fixedly sleeved on the surface of the threaded rod, a rotating shaft is connected to one side of the hollow rectangular column in a penetrating manner in a rotating manner, one end of the rotating shaft is fixedly connected with a second bevel gear, the second bevel gear is meshed with the first bevel gear and can drive the rotating shaft to rotate by rotating the rotating shaft, the rotating shaft drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the threaded rod to rotate, and the threaded rod is in threaded connection with the solid rectangular column, therefore, the solid rectangular column can be driven to move up and down through the forward rotation and the reverse rotation of the threaded rod, the effect of leveling the four corners of the bottom of the support can be achieved, the device can be conveniently placed on the uneven ground for use, and the support is prevented from being inclined and falling down.
Furthermore, the other end of the rotating shaft is fixedly connected with a twisting block, and the rotating shaft can be conveniently driven to rotate by twisting the twisting block, so that the labor-saving effect can be achieved.
Furthermore, the lower end of the hollow rectangular column is fixedly connected with an anti-skid rubber pad, and the device can have an anti-skid effect through the anti-skid rubber pad.
The utility model has the following beneficial effects:
1. when the solar photovoltaic power generation panel needs to be dedusted, a dedusting motor, two electric telescopic rods and an external water supply pump are started simultaneously, the dedusting motor drives a dedusting roller to rotate through two fixed bearings, a plurality of atomizing nozzles spray atomized water drops to the front surfaces of the inclined plate and the solar photovoltaic power generation panel through water obtained by a connecting hose and the external water supply pump, the two electric telescopic rods push a movable shell to move on the front surfaces of the inclined plate and the solar photovoltaic power generation panel, so that the inclined plate and the front surfaces of the solar photovoltaic power generation panel are sprayed with the atomized water drops from top to bottom, then the rotating dedusting roller is indirectly driven by the two electric telescopic rods to move and is cleaned at the positions where the water drops are sprayed on the inclined plate and the front surfaces of the solar photovoltaic power generation panel, and dust can flow out from the inclined plate and the front surfaces of the solar photovoltaic power generation panel under the adsorption of the water drops simultaneously, and when this device reciprocates and removes dust, the first universal ball that sets up slides in first bar spout and second bar spout with the universal ball of second for two electric telescopic handle can drive movable housing, dust removal roller and a plurality of atomizer steady removal, thereby make this device can remove dust the operation better.
2. According to the utility model, the rotating shaft can be driven to rotate by rotating the rotating shaft, the rotating shaft drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the threaded rod to rotate, and the threaded rod is in threaded connection with the solid rectangular column, so that the solid rectangular column can be driven to move up and down by positive and negative rotation of the threaded rod, the effect of leveling the four corners at the bottom of the support can be achieved, the device can be conveniently placed on uneven ground for use, and the support is prevented from being inclined and falling down.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a solar photovoltaic power generation and electric precipitation device of the utility model;
FIG. 2 is a connection diagram of the internal structure of a movable shell of the solar photovoltaic power generation and electric precipitation device;
FIG. 3 is a left side schematic view of a solar photovoltaic power generation dust collector of the present invention;
fig. 4 is a schematic sectional structure view of a hollow rectangular column.
In the drawings, the components represented by the respective reference numerals are listed below: 1. a support; 2. a sloping plate; 3. a solar photovoltaic power generation panel; 4. a first bar-shaped chute; 5. a side support plate; 6. an electric telescopic rod; 7. a movable housing; 8. a dust removal motor; 9. a first universal ball; 10. an atomizing spray head; 11. a connecting hose; 12. fixing the bearing; 13. a dust removal roller; 14. a second ball gimbal; 15. a second bar-shaped chute; 16. a solid rectangular column; 17. a hollow rectangular column; 18. a threaded rod; 19. a first bevel gear; 20. a rotating shaft; 21. a second bevel gear; 22. twisting the block; 23. anti-skid rubber pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-4, the utility model relates to a solar photovoltaic power generation and dust removal device, which comprises a bracket 1, an inclined plate 2, a movable shell 7 and side support plates 5, wherein the inclined plate 2 is obliquely fixed on the front surface of the bracket 1, the left end and the right end of the interior of the movable shell 7 are respectively provided with a fixed bearing 12 in a penetrating way, the side support plates 5 are arranged in an equal specification, the two side support plates 5 are respectively fixed on the left end and the right end of the inclined plate 2, a solar photovoltaic power generation plate 3 is arranged on the front surface of the inclined plate 2, a first strip-shaped chute 4 is longitudinally arranged at the left end of the front surface of the inclined plate 2, a second strip-shaped chute 15 is longitudinally arranged at the right end of the front surface of the inclined plate 2, electric telescopic rods 6 are fixed on the left side and the right side of the upper end of the front surface of the inclined plate 2, the two electric telescopic rods 6 are respectively positioned at the uppermost ends of the front surfaces of the first strip-shaped chute 4 and the second strip-shaped chute 15, the movable shell 7 is fixed on the lower end surfaces of the two electric telescopic rods 6, two first universal balls 9 and the like are arranged at the left end of the lower surface of the movable shell 7, two second universal balls 14 and the like are arranged at the right end of the lower surface of the movable shell 7, the lower ends of the two first universal balls 9 are positioned in the first strip-shaped sliding groove 4, the lower ends of the two second universal balls 14 are positioned in the second strip-shaped sliding groove 15, the dust removal motor 8 is arranged at the right end face of the movable shell 7, the dust removal roller 13 is transversely arranged in the movable shell 7, the dust removal roller 13 is in transmission connection with the dust removal motor 8 through two fixed bearings 12, the dust removal roller 13 is attached to the front surface of the solar photovoltaic power generation panel 3 and the front surface of the inclined panel 2, leveling mechanisms are arranged at four corners of the bottom of the support 1, an atomizing nozzle 10 is arranged at the lower end of the front surface of the movable shell 7, a connecting hose 11 is arranged in the movable shell 7, and the movable shell 7 can be pushed by the two electric telescopic rods 6, Dust removal roller 13 and a plurality of atomizer 10 remove, thereby can remove dust the operation to solar photovoltaic power generation board 3, first universal ball 9 and second universal ball 14 through setting up slide in first bar spout 4 and second bar spout 15, make two electric telescopic handle 6 can drive movable housing 7, dust removal roller 13 and a plurality of atomizer 10 steady removal, dust removal motor 8 and two fixing bearing 12 through the setting, can make dust removal roller 13 steady rotation, thereby can carry out rotary dust removal to swash plate 2 and 3 front surfaces of solar photovoltaic power generation board.
A plurality of atomizer 10 equidistance set up at movable housing 7 front surface lower extreme, and connecting hose 11 transversely sets up inside movable housing 7, through a plurality of atomizer 10 that set up, can soften the dust of the difficult clearance of swash plate 2 and solar photovoltaic power generation board 3 front surface and adsorb to the rotatory dust removal operation of the dust removal roller 13 of being convenient for more.
Connecting hose 11 is connected with a plurality of atomizer 10 homogeneous phases, and connecting hose 11 left end runs through movable shell 7 and is connected with external working shaft, through the connecting hose 11 that sets up, can make a plurality of atomizer 10 supplied water by external working shaft to a plurality of atomizer 10 get hydroenergy to swash plate 2 and 3 front surface blowout atomized water drops of solar photovoltaic power generation board, thereby be convenient for dust removal operation on next step.
The leveling mechanism comprises a solid rectangular column 16, the four corners of the bottom of the bracket 1 are fixedly connected with the solid rectangular column 16, the surface of the solid rectangular column 16 is connected with a hollow rectangular column 17 matched with the solid rectangular column 16 in a sliding manner, the lower end of the hollow rectangular column 17 is arranged in a sealing manner, the solid rectangular column 16 is internally penetrated through and connected with a threaded rod 18 in a threaded manner, the lower end of the threaded rod 18 is rotatably connected with the inner bottom surface of the hollow rectangular column 17, a first bevel gear 19 is fixedly sleeved on the surface of the threaded rod 18, one side of the hollow rectangular column 17 is penetrated through and rotatably connected with a rotating shaft 20, one end of the rotating shaft 20 is fixedly connected with a second bevel gear 21, the second bevel gear 21 is meshed with the first bevel gear 19 and can drive the rotating shaft 20 to rotate, the rotating shaft 20 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the first bevel gear 19 to rotate, the first bevel gear 19 drives the threaded rod 18 to rotate, and the threaded rod 18 is in threaded connection with the solid rectangular column 16, so that the solid rectangular column 16 can be driven to move up and down through the forward and reverse rotation of the threaded rod 18, the effect of leveling the four corners of the bottom of the support 1 can be achieved, the device can be conveniently placed on the uneven ground to be used, and the support 1 is prevented from being inclined and falling down.
The other end fixedly connected with of pivot 20 twists the piece 22, can conveniently drive pivot 20 through twisting and twist piece 22 and rotate to this can reach laborsaving effect, and the lower extreme fixedly connected with anti-skidding rubber pad 23 of hollow rectangular column 17 can let this device have skid-proof effect through anti-skidding rubber pad 23.
As shown in fig. 1 to 4, in the present invention, preferably, the power of the dust removing motor 8 is 300w, and this embodiment is a method for using a solar photovoltaic power generation dust removing device: when the solar photovoltaic power generation panel 3 needs to be dedusted, the dedusting motor 8, the two electric telescopic rods 6 and the external water supply pump are started simultaneously, the dedusting motor 8 drives the dedusting roller 13 to rotate through the two fixed bearings 12, meanwhile, the plurality of atomizing nozzles 10 spray atomized water drops to the front surfaces of the inclined plate 2 and the solar photovoltaic power generation panel 3 through the connecting hose 11 and the external water supply pump, the two electric telescopic rods 6 push the movable shell 7 to move on the front surfaces of the inclined plate 2 and the solar photovoltaic power generation panel 3, so that the inclined plate 2 and the front surface of the solar photovoltaic power generation panel 3 are sprayed with atomized water drops from top to bottom, then the rotating dedusting roller 13 is indirectly driven by the two electric telescopic rods 6 to move, and is cleaned by the sprayed water drops to the front surfaces of the inclined plate 2 and the solar photovoltaic power generation panel 3, and dust is adsorbed by the water drops, the dust collection device flows out of the sloping plate 2 and the front surface of the solar photovoltaic power generation plate 3 downwards, and when the dust collection device moves up and down, the arranged first universal ball 9 and the second universal ball 14 slide in the first strip-shaped chute 4 and the second strip-shaped chute 15, so that the two electric telescopic rods 6 can drive the movable shell 7, the dust collection roller 13 and the plurality of atomizing nozzles 10 to stably move, and the dust collection device can better perform dust collection operation;
can drive pivot 20 through rotating pivot 20 and rotate, pivot 20 drives second bevel gear 21 and rotates, second bevel gear 21 drives first bevel gear 19 and rotates, first bevel gear 19 drives threaded rod 18 and rotates, because threaded rod 18 is threaded connection with solid rectangle post 16, consequently, positive and negative rotation through threaded rod 18 can drive solid rectangle post 16 and reciprocate, with this effect that can reach leveling support 1 bottom four corners department, conveniently put this device and use subaerially at the unevenness, avoid support 1 slope and fall down.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a solar photovoltaic power generation dust collector, includes support (1), swash plate (2), movable housing (7) and side extension board (5), its characterized in that: the inclined plate (2) is obliquely fixed on the front surface of the bracket (1), the left end and the right end inside the movable shell (7) are respectively provided with a fixed bearing (12) in a penetrating way, two side support plates (5) are arranged in an equal specification, the two side support plates (5) are respectively fixed on the left end surface and the right end surface of the inclined plate (2), the solar photovoltaic power generation plate (3) is arranged on the front surface of the inclined plate (2), a first strip-shaped chute (4) is longitudinally arranged at the left end of the front surface of the inclined plate (2), a second strip-shaped chute (15) is longitudinally arranged at the right end of the front surface of the inclined plate (2), electric telescopic rods (6) are fixed on the left side and the right side of the upper end of the front surface of the inclined plate (2), the two electric telescopic rods (6) are respectively positioned at the uppermost ends of the front surfaces of the first strip-shaped chute (4) and the second strip-shaped chute (15), the lower end surfaces of the two electric telescopic rods (6) are fixedly provided with the movable shell (7), two first universal balls (9) are arranged at the left end of the lower surface of the movable shell (7) in an equal specification, two universal ball (14) of second isotacticity settings are at movable housing (7) lower surface right-hand member, and two first universal ball (9) lower extremes all are located first bar spout (4), and two universal ball (14) lower extremes all are located second bar spout (15), dust removal motor (8) set up at movable housing (7) right-hand member face, dust removal roller (13) transversely set up inside movable housing (7), dust removal roller (13) are connected through two fixed bearing (12) transmissions with dust removal motor (8), dust removal roller (13) paste with solar photovoltaic power generation board (3) front surface and swash plate (2) front surface mutually, the bottom four corners department of support (1) all is provided with leveling mechanism, movable housing (7) front surface lower extreme installs atomizer (10), install connecting hose (11) in movable housing (7).
2. The solar photovoltaic power generation dust removal device according to claim 1, wherein a plurality of the atomizing nozzles (10) are arranged at equal intervals at the lower end of the front surface of the movable shell (7), and the connecting hose (11) is transversely arranged inside the movable shell (7).
3. The solar photovoltaic power generation dust removal device according to claim 1, wherein the connecting hose (11) is connected with the plurality of atomizing nozzles (10), and the left end of the connecting hose (11) penetrates through the movable shell (7) to be connected with an external water supply pump.
4. The solar photovoltaic power generation dust removal device of claim 1, leveling mechanism includes solid rectangle post (16), the equal fixedly connected with solid rectangle post (16) of bottom four corners department of support (1), the surperficial sliding connection of solid rectangle post (16) has with solid rectangle post (16) assorted hollow rectangle post (17), the lower extreme of hollow rectangle post (17) is sealed to be set up, the inside of solid rectangle post (16) is run through and threaded connection has threaded rod (18), the lower extreme of threaded rod (18) is rotated with the interior bottom surface of hollow rectangle post (17) and is connected, the fixed cover in surface of threaded rod (18) is equipped with first bevel gear (19), one side of hollow rectangle post (17) is run through and is rotated and is connected with pivot (20), the one end fixedly connected with second bevel gear (21) of pivot (20), second bevel gear (21) are connected with first bevel gear (19) meshing.
5. The solar photovoltaic power generation dust removal device according to claim 4, wherein a twisting block (22) is fixedly connected to the other end of the rotating shaft (20).
6. The solar photovoltaic power generation dust removal device according to claim 4, wherein the lower end of the hollow rectangular column (17) is fixedly connected with an anti-slip rubber pad (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122099743.7U CN215934802U (en) | 2021-09-02 | 2021-09-02 | Solar photovoltaic power generation and electric precipitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122099743.7U CN215934802U (en) | 2021-09-02 | 2021-09-02 | Solar photovoltaic power generation and electric precipitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215934802U true CN215934802U (en) | 2022-03-01 |
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ID=80417946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122099743.7U Active CN215934802U (en) | 2021-09-02 | 2021-09-02 | Solar photovoltaic power generation and electric precipitation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215934802U (en) |
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2021
- 2021-09-02 CN CN202122099743.7U patent/CN215934802U/en active Active
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