CN112958593A - Biodegradable environment-friendly device - Google Patents
Biodegradable environment-friendly device Download PDFInfo
- Publication number
- CN112958593A CN112958593A CN202110155521.4A CN202110155521A CN112958593A CN 112958593 A CN112958593 A CN 112958593A CN 202110155521 A CN202110155521 A CN 202110155521A CN 112958593 A CN112958593 A CN 112958593A
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- Prior art keywords
- pushing
- stirring
- degradation
- movable plate
- fixed
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003756 stirring Methods 0.000 claims abstract description 50
- 230000015556 catabolic process Effects 0.000 claims abstract description 48
- 238000006731 degradation reaction Methods 0.000 claims abstract description 48
- 244000005700 microbiome Species 0.000 claims abstract description 17
- 230000007613 environmental effect Effects 0.000 claims abstract description 11
- 238000006065 biodegradation reaction Methods 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 230000000813 microbial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002337 anti-port Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
- B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
- B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/85—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with two or more stirrers on separate shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a biodegradable environment-friendly device, which comprises a degradable shell; a feed inlet for feeding and ventilating and a discharge outlet for discharging are sequentially arranged on the side wall of the degradation shell from top to bottom, and a valve for controlling the opening and closing of the discharge outlet is arranged on the discharge outlet; a movable plate is arranged in the degradation shell, and a stirring mechanism for fully mixing microorganisms and the garbage to be degraded is arranged at the bottom of the movable plate; the stirring mechanism comprises a stirring motor, a gear, a stirring shaft and a stirring rod. The biodegradation environmental protection device can fully mix microorganisms and garbage to be degraded by arranging the stirring mechanism, thereby improving the degradation efficiency of the microorganisms; through setting up pushing mechanism, can drive rabbling mechanism up-and-down motion to further make microorganism and treat that degradation rubbish mixes, thereby further improved the degradation efficiency of microorganism.
Description
Technical Field
The invention relates to the field of microbial degradation, in particular to a biodegradable environment-friendly device.
Background
Microbial degradation refers to the phenomenon that microorganisms convert organic substances into simple inorganic substances, and the excrement and dead bodies of various organisms in the nature are converted into the simple inorganic substances through the decomposition effect of the microorganisms. The microbial degradation makes the cyclic reciprocation of the life elements possible, and various complex organic compounds are degraded to maintain the virtuous cycle of the ecological system.
When the garbage is subjected to microbial degradation, the garbage is stacked together, so that microorganisms need to gradually permeate into the garbage, and then the stacked garbage can be degraded, so that the degradation efficiency is low.
Disclosure of Invention
The invention aims to provide a biodegradation environment-friendly device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a biodegradable environmental protection device comprises a degradable shell; a feed inlet for feeding and ventilating and a discharge outlet for discharging are sequentially arranged on the side wall of the degradation shell from top to bottom, and a valve for controlling the opening and closing of the discharge outlet is arranged on the discharge outlet; a movable plate is arranged in the degradation shell, and a stirring mechanism for fully mixing microorganisms and the garbage to be degraded is arranged at the bottom of the movable plate; the stirring mechanism comprises a stirring motor, a gear, a stirring shaft and a stirring rod; a stirring motor is fixed at the bottom of the movable plate, and a gear is fixed at the rotating end of the stirring motor; the number of the gears is multiple, the other gear is rotatably arranged at the bottom of the movable plate, and the two gears are meshed with each other; stirring shafts are fixed at the bottoms of the two gears; and a plurality of stirring rods are fixed on the outer sides of the two stirring shafts along the ring shape at equal angles.
As a further scheme of the invention: and a plurality of stirring rods on the two stirring shafts are arranged in a crossed manner, and the shape of each stirring rod is concave.
As a still further scheme of the invention: a pushing mechanism for pushing the movable plate to reciprocate up and down is also arranged in the degradation shell; the pushing mechanism comprises a pushing rotating shaft, an incomplete gear, a pushing plate, a fixed block and a pushing rod; the top of the degradation shell is rotatably provided with two pushing rotating shafts, and the lower ends of the two pushing rotating shafts are both fixed with incomplete gears; the initial rotation angles of the two incomplete gears are different by half a circle, and the two incomplete gears are respectively and rotatably arranged in the openings of the two pushing plates; the front side and the rear side of the opening of the pushing plate are respectively provided with a toothed bar, and when teeth at one end of the incomplete gear are separated from the toothed bar at one side of the opening of the pushing plate, the teeth at the other end of the incomplete gear are just matched with the toothed bar at the other side of the opening of the pushing plate; fixed blocks are fixed on the front side and the rear side of the pushing plate; the bottoms of the four fixed blocks are hinged with one ends of push rods; the other ends of the two push rods positioned on one side are respectively hinged on the movable plate; the driving mechanism for driving the two pushing rotating shafts to synchronously rotate is arranged on the outer side of the degradation shell.
As a still further scheme of the invention: the driving mechanism comprises a pushing motor and a belt; a pushing motor is fixed on the outer side of the degradation shell, and the rotating end of the pushing motor is connected with one end of a single pushing rotating shaft; the two pushing rotating shafts are connected through a belt.
As a still further scheme of the invention: the movable plate is a cross-shaped plate, the outer side of the movable plate is arranged on the positioning rods in a sliding mode, and the positioning rods are fixed inside the degradation shell.
As a still further scheme of the invention: the inner wall of the degradation shell is connected with the pushing plates and the two pushing plates through a plurality of positioning rod structures; the positioning rod structure comprises an inner rod and an outer rod; one end of the inner rod is arranged in one end of the outer rod in a sliding mode.
As a still further scheme of the invention: the inside bottom of degradation shell is established to decurrent slope shape, and the discharge gate is located one side of its minimum.
Compared with the prior art, the invention has the beneficial effects that: by arranging the stirring mechanism, the microorganisms and the garbage to be degraded can be fully mixed, so that the degradation efficiency of the microorganisms is improved; through setting up pushing mechanism, can drive rabbling mechanism up-and-down motion to further make microorganism and treat that degradation rubbish mixes, thereby further improved the degradation efficiency of microorganism.
Drawings
FIG. 1 is a schematic structural diagram of a biodegradation environmental protection device.
FIG. 2 is a schematic structural diagram of a pushing mechanism in the biodegradation environmental protection device.
FIG. 3 is a schematic structural diagram of a stirring mechanism in the biodegradation environmental protection device.
In the figure: 1. degrading the shell; 2. a feed inlet; 3. a discharge port; 4. a valve; 5. a movable plate; 6. a stirring motor; 7. a gear; 8. a stirring shaft; 9. a stirring rod; 10. pushing the rotating shaft; 11. an incomplete gear; 12. a push plate; 13. a fixed block; 14. a push rod; 15. a push motor; 16. a belt; 17. positioning a rod; 18. an inner rod; 19. an outer rod.
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.
It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if the description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
Referring to fig. 1-3, the present embodiment provides a biodegradable environmental protection device, which includes a degradable housing 1; a feed inlet 2 for feeding and ventilating and a discharge outlet 3 for discharging are sequentially arranged on the side wall of the degradation shell 1 from top to bottom, and a valve 4 for controlling the opening and closing of the discharge outlet 3 is arranged on the discharge outlet 3; a movable plate 5 is arranged in the degradation shell 1, and a stirring mechanism for fully mixing microorganisms and garbage to be degraded is arranged at the bottom of the movable plate 5; the stirring mechanism comprises a stirring motor 6, a gear 7, a stirring shaft 8 and a stirring rod 9; a stirring motor 6 is fixed at the bottom of the movable plate 5, and a gear 7 is fixed at the rotating end of the stirring motor 6; the number of the gears 7 is multiple, another gear 7 is rotatably arranged at the bottom of the movable plate 5, and the two gears 7 are meshed with each other; the bottoms of the two gears 7 are respectively fixed with a stirring shaft 8; a plurality of stirring rods 9 are fixed on the outer sides of the two stirring shafts 8 along the annular equal angle; set up like this, when agitator motor 6 during operation, through two gears 7 of intermeshing to drive two (mixing) shaft 8 antiport, thereby drive a plurality of puddlers 9 and treat that degradation rubbish carries out intensive mixing, thereby make the microorganism with treat that degradation rubbish intensive mixing has improved degradation efficiency.
In order to further improve the mixing efficiency, a plurality of stirring rods 9 on the two stirring shafts 8 are arranged in a crossed manner, and the shape of each stirring rod 9 is concave; the garbage to be degraded can be uniformly stirred by the arrangement, so that the garbage to be degraded is uniformly mixed.
In order to further improve the mixing efficiency, a pushing mechanism for pushing the movable plate 5 to reciprocate up and down is further arranged in the degradation shell 1; the pushing mechanism comprises a pushing rotating shaft 10, an incomplete gear 11, a pushing plate 12, a fixed block 13 and a pushing rod 14; the top of the degradation shell 1 is rotatably provided with two pushing rotating shafts 10, and the lower ends of the two pushing rotating shafts 10 are both fixed with incomplete gears 11; the initial rotation angles of the two incomplete gears 11 are different by half a circle, and the two incomplete gears 11 are respectively and rotatably arranged in the openings of the two push plates 12; tooth bars are arranged on the front side and the rear side of the opening of the pushing plate 12, and when teeth at one end of the incomplete gear 11 are separated from the tooth bars on one side of the opening of the pushing plate 12, teeth at the other end of the incomplete gear 11 are just matched with the tooth bars on the other side of the opening of the pushing plate 12; the front side and the rear side of the pushing plate 12 are both fixed with fixed blocks 13; the bottoms of the four fixed blocks 13 are hinged with one ends of push rods 14; the other ends of the two push rods 14 positioned at one side are respectively hinged on the movable plate 5; the driving mechanism for driving the two pushing rotating shafts 10 to synchronously rotate is arranged on the outer side of the degradation shell 1.
Further, the driving mechanism includes a pushing motor 15 and a belt 16; a pushing motor 15 is fixed on the outer side of the degradation shell 1, and the rotating end of the pushing motor 15 is connected with one end of a single pushing rotating shaft 10; the two pushing rotating shafts 10 are connected through a belt 16; set up like this, when the work of push motor 15, drive two promotion pivot 10 syntropys through belt 16 and rotate, because the initial rotation angle of two incomplete gears 11 differs half a circle, and during the tooth bar separation of the tooth of 11 one ends of incomplete gear and the opening one side of slurcam 12, the tooth of the incomplete gear 11 other end just cooperates with the tooth bar of the opening opposite side of slurcam 12, thereby two slurcams 12 can constantly keep away from each other and be close to, thereby drive four slurcam 14 up-and-down reciprocating motion, thereby promote up-and-down reciprocating motion of fly leaf 5, thereby drive the reciprocating motion from top to bottom of rabbling mechanism, thereby can treat degradation rubbish intensive mixing.
Further, in order to make the movable plate 5 more stable in the movement process, the movable plate 5 is a cross-shaped plate, the outer side of the movable plate 5 is slidably disposed on the positioning rods 17, and the plurality of positioning rods 17 are fixed inside the degradation housing 1.
Further, in order to make the two pushing plates 12 more stable in the movement process, the inner wall of the degradation shell 1 is connected with the pushing plates 12, and the two pushing plates 12 are connected through a plurality of positioning rod structures; the positioning rod structure comprises an inner rod 18 and an outer rod 19; one end of the inner rod 18 is slidably disposed within one end of the outer rod 19.
The working principle of the embodiment is as follows: when agitator motor 6 during operation, through two intermeshing's gear 7 to drive two (mixing) shaft 8 antiport, thereby drive a plurality of puddlers 9 and treat that degradation rubbish carries out intensive mixing, thereby make microorganism and treat that degradation rubbish intensive mixing has improved degradation efficiency.
When the work of push motor 15, drive two promotion pivot 10 syntropys through belt 16 and rotate, because the initial rotation angle of two incomplete gears 11 differs half a circle, and during the tooth bar separation of the tooth of incomplete gear 11 one end and the opening one side of slurcam 12, the tooth of the incomplete gear 11 other end just cooperates with the tooth bar of the opening opposite side of slurcam 12, thereby two slurcams 12 can constantly keep away from each other and be close to, thereby drive four upper and lower reciprocating swing of slurcam 14, thereby promote up and down reciprocating motion of fly leaf 5, thereby drive reciprocating motion from top to bottom of rabbling mechanism, thereby can treat degradation rubbish intensive mixing.
Example 2
The embodiment is further improved on the basis of the embodiment 1, and the improvement is as follows: in order to facilitate the discharging, the inner bottom of the degradation casing 1 is formed to be inclined downward, and the discharging port 3 is located at one side of the lowest end thereof.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. A biodegradable environmental protection device comprises a degradable shell (1); a feed inlet (2) for feeding and ventilating and a discharge outlet (3) for discharging are sequentially arranged on the side wall of the degradation shell (1) from top to bottom, and a valve (4) for controlling the opening and closing of the discharge outlet (3) is arranged on the discharge outlet; the garbage treatment device is characterized in that a movable plate (5) is arranged in the degradation shell (1), and a stirring mechanism for fully mixing microorganisms and garbage to be degraded is arranged at the bottom of the movable plate (5); the stirring mechanism comprises a stirring motor (6), a gear (7), a stirring shaft (8) and a stirring rod (9); a stirring motor (6) is fixed at the bottom of the movable plate (5), and a gear (7) is fixed at the rotating end of the stirring motor (6); the number of the gears (7) is multiple, the other gear (7) is rotatably arranged at the bottom of the movable plate (5), and the two gears (7) are meshed with each other; stirring shafts (8) are fixed at the bottoms of the two gears (7); and a plurality of stirring rods (9) are fixed on the outer sides of the two stirring shafts (8) along the ring shape at equal angles.
2. The biodegradation environmentally friendly device according to claim 1, wherein a plurality of stirring rods (9) on two of said stirring shafts (8) are arranged crosswise, and the shape of the stirring rods (9) is concave.
3. The biodegradation environmental protection device according to claim 1, characterized in that a pushing mechanism for pushing the movable plate (5) to reciprocate up and down is further provided in the degradation housing (1); the pushing mechanism comprises a pushing rotating shaft (10), an incomplete gear (11), a pushing plate (12), a fixed block (13) and a pushing rod (14); the top of the degradation shell (1) is rotatably provided with two pushing rotating shafts (10), and the lower ends of the two pushing rotating shafts (10) are both fixed with incomplete gears (11); the initial rotation angles of the two incomplete gears (11) have a half-circle difference, and the two incomplete gears (11) are respectively and rotatably arranged in the openings of the two push plates (12); tooth bars are arranged on the front side and the rear side of the opening of the pushing plate (12), and when teeth at one end of the incomplete gear (11) are separated from the tooth bars at one side of the opening of the pushing plate (12), the teeth at the other end of the incomplete gear (11) are just matched with the tooth bars at the other side of the opening of the pushing plate (12); fixed blocks (13) are fixed on the front side and the rear side of the push plate (12); the bottoms of the four fixed blocks (13) are hinged with one ends of push rods (14); the other ends of the two push rods (14) positioned on one side are respectively hinged on the movable plate (5); the driving mechanism for driving the two pushing rotating shafts (10) to synchronously rotate is arranged on the outer side of the degradation shell (1).
4. A biodegradable environmentally friendly device according to claim 3, characterized in that said driving mechanism comprises a pushing motor (15) and a belt (16); a pushing motor (15) is fixed on the outer side of the degradation shell (1), and the rotating end of the pushing motor (15) is connected with one end of a single pushing rotating shaft (10); the two pushing rotating shafts (10) are connected through a belt (16).
5. The biodegradation environmental protection device according to claim 3, characterized in that the movable plate (5) is a cross-shaped plate, and the outside of the movable plate (5) is slidably disposed on the positioning rods (17), and the plurality of positioning rods (17) are fixed inside the degradation casing (1).
6. The biodegradation environmental protection device according to claim 5, characterized in that the inner wall of the degradation shell (1) and the pushing plates (12), and the two pushing plates (12) are connected by a plurality of positioning rod structures; the positioning rod structure comprises an inner rod (18) and an outer rod (19); one end of the inner rod (18) is arranged in one end of the outer rod (19) in a sliding mode.
7. A biodegradable environmental protection device according to claim 6, characterized in that the inner bottom of said degradation casing (1) is downward inclined and the discharge hole (3) is located at the side of its lowest end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110155521.4A CN112958593A (en) | 2021-02-04 | 2021-02-04 | Biodegradable environment-friendly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110155521.4A CN112958593A (en) | 2021-02-04 | 2021-02-04 | Biodegradable environment-friendly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112958593A true CN112958593A (en) | 2021-06-15 |
Family
ID=76273770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110155521.4A Pending CN112958593A (en) | 2021-02-04 | 2021-02-04 | Biodegradable environment-friendly device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112958593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046875A (en) * | 2023-08-22 | 2023-11-14 | 江苏雅信昆成检测科技有限公司 | Biodegradable environment-friendly device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109603637A (en) * | 2019-01-17 | 2019-04-12 | 张磊 | A kind of industrial chemicals mixing stirring device of mutual impact type |
| CN111545118A (en) * | 2020-05-20 | 2020-08-18 | 高从新 | Poultry is with fodder ration ratio mixing arrangement |
| CN211996704U (en) * | 2020-04-19 | 2020-11-24 | 孙杰 | Storage device for bone substitute material |
| CN112106667A (en) * | 2020-09-29 | 2020-12-22 | 王娟娟 | Full-automatic cream whipper |
| CN212283847U (en) * | 2020-03-11 | 2021-01-05 | 乐明药业(苏州)有限公司 | Recovered medicine apparatus for producing of using of medical treatment |
| CN112221385A (en) * | 2020-09-29 | 2021-01-15 | 李小倩 | Uniform mixing equipment for papermaking |
| CN112237957A (en) * | 2020-09-18 | 2021-01-19 | 金华职业技术学院 | Efficient building waste preliminary treatment equipment for civil engineering |
-
2021
- 2021-02-04 CN CN202110155521.4A patent/CN112958593A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109603637A (en) * | 2019-01-17 | 2019-04-12 | 张磊 | A kind of industrial chemicals mixing stirring device of mutual impact type |
| CN212283847U (en) * | 2020-03-11 | 2021-01-05 | 乐明药业(苏州)有限公司 | Recovered medicine apparatus for producing of using of medical treatment |
| CN211996704U (en) * | 2020-04-19 | 2020-11-24 | 孙杰 | Storage device for bone substitute material |
| CN111545118A (en) * | 2020-05-20 | 2020-08-18 | 高从新 | Poultry is with fodder ration ratio mixing arrangement |
| CN112237957A (en) * | 2020-09-18 | 2021-01-19 | 金华职业技术学院 | Efficient building waste preliminary treatment equipment for civil engineering |
| CN112106667A (en) * | 2020-09-29 | 2020-12-22 | 王娟娟 | Full-automatic cream whipper |
| CN112221385A (en) * | 2020-09-29 | 2021-01-15 | 李小倩 | Uniform mixing equipment for papermaking |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117046875A (en) * | 2023-08-22 | 2023-11-14 | 江苏雅信昆成检测科技有限公司 | Biodegradable environment-friendly device |
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