CN219839606U - Semiconductor industrial wastewater filtering device - Google Patents
Semiconductor industrial wastewater filtering device Download PDFInfo
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- CN219839606U CN219839606U CN202321124245.6U CN202321124245U CN219839606U CN 219839606 U CN219839606 U CN 219839606U CN 202321124245 U CN202321124245 U CN 202321124245U CN 219839606 U CN219839606 U CN 219839606U
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- rose box
- filtering
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- 238000001914 filtration Methods 0.000 title claims abstract description 50
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 25
- 239000004065 semiconductor Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 238000004062 sedimentation Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 241000220317 Rosa Species 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 17
- 239000002351 wastewater Substances 0.000 claims description 13
- 239000006004 Quartz sand Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000009298 carbon filtering Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 239000010865 sewage Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000013547 stew Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004075 wastewater filtration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The utility model provides a semiconductor industrial wastewater filtering device which comprises a filtering box, wherein supporting columns are uniformly and fixedly connected to the left side and the right side of the lower end face of the filtering box, a water outlet is fixedly connected to the center of the bottom of the filtering box, a sedimentation box is fixedly connected to the center of the upper end face of the filtering box, a water inlet is formed in the middle of the upper end face of the sedimentation box, water pipes are fixedly communicated with the lower parts of the left end face and the right end face of the sedimentation box, inclined plates are fixedly connected to the middle parts of the left end face and the right end face of an inner cavity of the filtering box, a containing groove is fixedly connected to the tail ends of the left end face and the right end face of the inclined plates, a liquid feeding hole is formed in the front side of the upper end face of the filtering box, a stirring device is arranged at the bottom of the containing groove, a filtering disc is fixedly connected to the bottom of the inner cavity of the filtering box, and an exhaust device is fixedly connected to the upper part of the right end face of the filtering box.
Description
Technical Field
The disclosure specifically discloses an industrial wastewater treatment technical field, and specifically relates to a semiconductor industrial wastewater filtering device.
Background
Industrial waste water includes industrial waste water, production sewage and cooling water, which refers to waste water and waste liquid generated in the industrial production process, wherein the waste water contains industrial production materials, intermediate products and byproducts which run off along with water and pollutants generated in the production process, the industrial waste water is various and complex in composition, for example, the industrial waste water of electrolytic salt contains mercury, the industrial waste water of heavy metal smelting contains lead, cadmium and other various metals, the industrial waste water of electroplating contains cyanide, chromium and other various heavy metals, the industrial waste water of petroleum refining contains phenol, the industrial waste water of pesticide manufacturing contains various pesticides and the like, and the industrial waste water often contains various toxic substances which pollute the environment and have great harm to human health, so comprehensive utilization is developed, chemical harm is beneficial, and the waste water can be discharged after being treated by adopting corresponding purifying measures according to the pollutant components and the concentration in the waste water;
according to application number 202121399638.9, a filtering device for treating semiconductor industrial wastewater is disclosed, the filtering device comprises a substrate, the top of the substrate is provided with a water inlet, the top of an inner cavity of the substrate is provided with a water guide hopper, the upper surface of the water guide hopper is fixedly connected with the top of the inner cavity of the substrate, a water distribution hopper is arranged below the water guide hopper, a filtering barrel is symmetrically arranged below the water distribution hopper, a sealing box is arranged below the filtering barrel, the inner cavity of the sealing box is provided with a double-shaft extension driving motor, the output end of the double-shaft extension driving motor is provided with a first transmission shaft, the first transmission shaft is provided with a first bevel gear, the first bevel gear is connected with a second bevel gear in a meshed manner, the second bevel gear is provided with a second transmission shaft, the second transmission shaft penetrates through the bottom wall of the filtering barrel and extends to the inner cavity of the filtering barrel, and a filtering disc is arranged below the sealing box;
the existing wastewater filtering device cannot precipitate dirty impurities before filtering, so that later-stage pollution discharge is difficult, the existing filtering device cannot discharge pollution, a filtering barrel is required to be cleaned, and filtering efficiency is reduced.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings of the prior art, the present utility model is directed to a structure with good drainage.
The utility model provides a semiconductor industrial wastewater filter equipment, includes the rose box, the even fixedly connected with support column in terminal surface left and right sides under the rose box, rose box bottom center department fixedly connected with outlet, rose box up end center department fixedly connected with rose box, the water inlet has been seted up at the rose box up end middle part, the equal fixedly connected with raceway of terminal surface lower part about the rose box, the raceway end runs through and extends to rose box inner chamber upper portion, the equal fixedly connected with hang plate in terminal surface middle part about the rose box inner chamber about the hang plate end fixedly connected with accomodates the groove, the liquid feeding mouth has been seted up to the rose box up end front side, accomodate the groove bottom and be provided with agitating unit, agitating unit upper portion runs through and extends to accomodate groove upper portion, rose box inner chamber bottom fixedly connected with filter disc, rose box right-hand member face upper portion fixedly connected with exhaust apparatus.
According to the technical scheme provided by the embodiment of the utility model, the exhaust device comprises a supporting plate, a purifying box, a vent pipe, an exhaust pipe, a quartz sand filtering layer, an active carbon filtering layer and a sponge iron purifying layer, wherein the supporting plate is fixedly connected to the upper part of the right end surface of the filtering box, the purifying box is fixedly connected to the upper end surface of the supporting plate, the vent pipe is fixedly communicated with the left end surface of the purifying box, the tail end of the vent pipe penetrates and extends to the upper part of the inner cavity of the filtering box, the exhaust pipe is fixedly communicated with the upper part of the right end surface of the purifying box, and the quartz sand filtering layer, the active carbon filtering layer and the sponge iron purifying layer are sequentially arranged in the inner cavity of the purifying box from left to right.
According to the technical scheme provided by the embodiment of the utility model, the stirring device comprises a driving motor, a waterproof box, a rotating rod and a stirring rod, wherein the driving motor is fixedly connected to the center of the lower end face of the storage groove, the waterproof box is arranged on the outer wall of the driving motor, the upper end face of the waterproof box is fixedly connected to the lower end face of the storage groove, a motor shaft of the driving motor penetrates through the inner cavity of the storage groove and is fixedly connected with the rotating rod, and the stirring rod is uniformly and fixedly connected to the outer wall of the rotating rod.
According to the technical scheme provided by the embodiment of the utility model, the lower part of the rear end surface of the sedimentation tank is fixedly connected with a first sewage drain pipe, and the lower part of the rear end surface of the storage tank is fixedly connected with a second sewage drain pipe.
According to the technical scheme provided by the embodiment of the utility model, through holes are uniformly formed in the end faces of the left inclined plate and the right inclined plate, and the inner diameter of each through hole is 1-2cm.
According to the technical scheme provided by the embodiment of the utility model, the bottom of the inner cavity of the sedimentation tank is fixedly connected with the dirt blocking plate, and the end surfaces of the dirt blocking plate are uniformly provided with openings.
In summary, the utility model discloses a semiconductor industrial wastewater filtering device.
The beneficial effects are that:
1. through the sedimentation tank, keep off dirty board, first blow off pipe, accomodate groove and second blow off pipe, waste water gets into the sedimentation tank inner chamber, through waste water sediment, with some impurity deposit in fender dirty board lower part, through first blow off pipe, can discharge impurity, collect impurity through accomodating the groove to discharge through the second blow off pipe, effectively solved the clear problem of rose box inner chamber, improved the filter effect.
2. Through filling opening, agitating unit, hang plate, through-hole and filter disc, add the rose box inside through the filling opening with the flocculating agent, through flocculating agent and moisture intensive mixing, guarantee that impurity drops to the storage tank inner chamber because of gravity, moisture gets into storage tank lower part through the through-hole, filters through the filter disc once more, and gaseous can reach the gas emission standard through quartz sand filter layer, active carbon filter layer and sponge iron purification layer after the reaction.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a semiconductor industrial wastewater filtration device in accordance with the present utility model;
FIG. 2 is a schematic cross-sectional structure of a semiconductor industrial wastewater filtering device according to the present utility model;
FIG. 3 is an enlarged sectional view of the structure of the present utility model shown in FIG. A.
In the figure: 1. a filter box; 2. a support column; 3. a water outlet; 4. a sedimentation tank; 5. a water inlet; 6. a water pipe; 7. a liquid adding port; 8. a stirring device; 81. a driving motor; 82. a waterproof box; 83. a rotating rod; 84. a stirring rod; 9. a dirt blocking plate; 10. a first drain pipe; 11. an inclined plate; 12. a storage groove; 13. a through hole; 14. a second drain outlet; 15. a filter tray; 16. a support plate; 17 a purifying box; 18. a vent pipe; 19. an exhaust pipe; 20. a quartz sand filter layer; 21. an activated carbon filter layer; 22. a sponge iron purifying layer.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As mentioned in the background art, for among the prior art waste water filter equipment before filtering, can't deposit the impurity of dirty, lead to later stage blowdown difficulty, and current filter equipment can't carry out the blowdown, need wash the filter vat, reduce filtration efficiency, this disclosure proposes a blowdown effectual structure.
Example 1
Please refer to fig. 1, a semiconductor industrial wastewater filtering device, including rose box 1, and rose box 1 lower part is the funnel form, in order to guarantee rose box 1 stable, even fixedly connected with support column 2 in terminal surface left and right sides under rose box 1, in order to guarantee to discharge filtered water, fixedly connected with outlet 3 in rose box 1 bottom center department, and outlet 3 is located support column 2 bottoms, conveniently connect the conveying pipe, in order to guarantee that sewage can stew in advance and deposit, fixedly connected with rose box 4 in rose box 1 up end center department, water inlet 5 has been seted up at rose box 4 up at the up end middle part, all fixedly connected with raceway 6 in rose box 4 left and right sides terminal surface lower part, and raceway 6 end runs through and extends to rose box 1 inner chamber upper portion.
Referring to fig. 2, in order to ensure that filtered water is realized, the middle parts of the left end face and the right end face of the inner cavity of the filter tank 1 are fixedly connected with inclined plates 11, the inclined plates 11 incline towards the inner cavity of the filter tank 1, the tail ends of the left end face and the right end face of the inclined plates 11 are fixedly connected with a containing groove 12, large impurities are ensured to enter the containing groove 12, in order to ensure that the impurities in sewage can be gathered together, the front side of the upper end face of the filter tank 1 is provided with a liquid adding port 7, in order to ensure that liquid can be quickly mixed with the sewage, the bottom of the containing groove 12 is provided with a stirring device 8, the upper part of the stirring device 8 extends through to the upper part of the containing groove 12, and in order to further filter, the bottom of the inner cavity of the filter tank 1 is fixedly connected with a filter disc 15, and in order to ensure that reacted gas is normally discharged, the upper part of the right end face of the filter tank 1 is fixedly connected with an exhaust device.
Referring to fig. 3, in order to ensure that the exhausted gas meets the normal emission standard, an exhaust device is formed by a supporting plate 16, a purifying box 17, an air pipe 18, an exhaust pipe 19, a quartz sand filtering layer 20, an activated carbon filtering layer 21 and a sponge iron purifying layer 22, the supporting plate 16 is fixedly connected to the upper portion of the right end face of the filtering box 1, the purifying box 17 is fixedly connected to the upper end face of the supporting plate 16, the air pipe 18 is fixedly communicated with the left end face of the purifying box 17, the tail end of the air pipe 18 extends to the upper portion of the inner cavity of the filtering box 1 in a penetrating manner, the exhaust pipe 19 is fixedly communicated to the upper portion of the right end face of the purifying box 17, and the quartz sand filtering layer 20, the activated carbon filtering layer 21 and the sponge iron purifying layer 22 are sequentially arranged in the inner cavity of the purifying box 17 from left to right, so that the gas is ensured to meet the normal emission standard.
Referring to fig. 2, in order to fully mix the liquid and the sewage, the stirring device 8 is formed by a driving motor 81, a waterproof box 82, a rotating rod 83 and a stirring rod 84, the driving motor 81 is fixedly connected to the center of the lower end surface of the storage tank 12, the waterproof box 82 is arranged on the outer wall of the driving motor 81, the upper end surface of the waterproof box 82 is fixedly connected to the lower end surface of the storage tank 12, a motor shaft of the driving motor 81 penetrates through and extends to the inner cavity of the storage tank 12 and is fixedly connected with the rotating rod 83, and the stirring rod 84 is uniformly and fixedly connected to the outer wall of the rotating rod 83.
Referring to the figure, in order to ensure that the sediment can be discharged, a first blow-off pipe 10 is fixedly connected to the lower portion of the rear end surface of the settling tank 4 for first blow-off, a second blow-off pipe 14 is fixedly connected to the lower portion of the rear end surface of the storage tank 12 for convenience in discharging a large amount of impurities, and the problem of cleaning the inner cavity of the filtering tank 1 is solved.
Referring to fig. 1, in order to filter moisture, through holes 13 are uniformly formed in the end surfaces of the left and right inclined plates 11, the through holes 13 can ensure separation of moisture and impurities, and the inner diameter of the through holes 13 is 1-2cm, so that the filtering efficiency is improved.
Example 2
Referring to fig. 2, in order that the precipitate in the inner cavity of the settling tank 4 is not disordered again due to the impact force of the inflow water, a dirt blocking plate 9 is fixedly connected to the bottom of the inner cavity of the settling tank 4, and openings are uniformly formed in the end faces of the dirt blocking plate 9, so that the precipitate is guaranteed to enter the lower portion of the dirt blocking plate 9 through the openings, the turbidity of the moisture in the inner cavity of the settling tank 4 is effectively avoided, and the filtering effect is improved.
Working principle: during the use, introduce water inlet 5 with outside waste water, guarantee that waste water gets into the sedimentation tank 4 inner chamber, deposit through waste water, deposit a portion impurity in dirt blocking plate 9 lower part, through first blow off pipe 10, can discharge impurity, through raceway 6, carry the rose box 1 inner chamber with the water after depositing, moisture stores in storage tank 12 upper portion, utilize external power supply to connect, start driving motor 81, driving motor 81 drives rotary rod 83 rotation, rotary rod 83 drives puddler 84 rotation, and add the filter box 1 inside through filling opening 7 with the flocculating agent, through flocculating agent and moisture intensive mixing, guarantee that impurity drops to storage tank 12 inner chamber because of gravity, moisture gets into storage tank 12 lower part through hole 13, filter through filter disc 15 again, guarantee the clear discharge of waste water, and the gas after the reaction gets into inside the rose box 17, gas passes through quartz sand filter layer 20, activated carbon filter layer 21 and sponge iron purification layer 22, accord with normal emission standard.
The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.
Claims (6)
1. The utility model provides a semiconductor industry waste water filter equipment, includes rose box (1), its characterized in that: even fixedly connected with support column (2) in terminal surface left and right sides under rose box (1), rose box (1) bottom center department fixedly connected with outlet (3), rose box (1) up end center department fixedly connected with rose box (4), water inlet (5) have been seted up at rose box (4) up end middle part, terminal surface lower part all fixedly connected with raceway (6) about rose box (4), raceway (6) end run through and extend to rose box (1) inner chamber upper portion, terminal surface middle part all fixedly connected with hang plate (11) about rose box (1) inner chamber end fixedly connected with storage tank (12), liquid feeding mouth (7) have been seted up to rose plate (1) up end front side, storage tank (12) bottom is provided with agitating unit (8), agitating unit (8) upper portion run through and extend to storage tank (12) upper portion, rose box (1) inner chamber bottom fixedly connected with filter disc (15), terminal surface upper portion fixedly connected with exhaust apparatus about rose box (1).
2. The semiconductor industrial wastewater filtering device according to claim 1, wherein: the exhaust device comprises a supporting plate (16), a purifying box (17), a vent pipe (18), an exhaust pipe (19), a quartz sand filtering layer (20), an active carbon filtering layer (21) and a sponge iron purifying layer (22), wherein the supporting plate (16) is fixedly connected to the upper portion of the right end face of the filtering box (1), the purifying box (17) is fixedly connected to the upper end face of the supporting plate (16), the vent pipe (18) is fixedly communicated with the left end face of the purifying box (17), the tail end of the vent pipe (18) penetrates through and extends to the upper portion of the inner cavity of the filtering box (1), the exhaust pipe (19) is fixedly communicated with the upper portion of the right end face of the purifying box (17), and the quartz sand filtering layer (20), the active carbon filtering layer (21) and the sponge iron purifying layer (22) are sequentially arranged in the inner cavity of the purifying box (17) from left to right.
3. The semiconductor industrial wastewater filtering device according to claim 1, wherein: stirring device (8) are including driving motor (81), waterproof case (82), rotary rod (83) and puddler (84), terminal surface center department fixedly connected with driving motor (81) under accomodating groove (12), driving motor (81) outer wall is equipped with waterproof case (82), terminal surface under accomodating groove (12) waterproof case (82) up end fixed connection, the motor shaft of driving motor (81) runs through and extends to accomodate groove (12) inner chamber and fixedly connected with rotary rod (83), even fixedly connected with puddler (84) of rotary rod (83) outer wall.
4. The semiconductor industrial wastewater filtering device according to claim 1, wherein: the sedimentation tank (4) rear end face lower part fixedly connected with first blow off pipe (10), accomodate groove (12) rear end face lower part fixedly connected with second blow off pipe (14).
5. The semiconductor industrial wastewater filtering device according to claim 1, wherein: through holes (13) are uniformly formed in the end faces of the left inclined plate (11) and the right inclined plate, and the inner diameter of each through hole (13) is 1-2cm.
6. The semiconductor industrial wastewater filtering device according to claim 1, wherein: the bottom of the inner cavity of the settling tank (4) is fixedly connected with a dirt blocking plate (9), and the end surfaces of the dirt blocking plate (9) are uniformly provided with openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124245.6U CN219839606U (en) | 2023-05-11 | 2023-05-11 | Semiconductor industrial wastewater filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124245.6U CN219839606U (en) | 2023-05-11 | 2023-05-11 | Semiconductor industrial wastewater filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219839606U true CN219839606U (en) | 2023-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321124245.6U Active CN219839606U (en) | 2023-05-11 | 2023-05-11 | Semiconductor industrial wastewater filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219839606U (en) |
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2023
- 2023-05-11 CN CN202321124245.6U patent/CN219839606U/en active Active
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