CN112933824A - Dust collector who has self-cleaning function for construction - Google Patents
Dust collector who has self-cleaning function for construction Download PDFInfo
- Publication number
- CN112933824A CN112933824A CN202110107975.4A CN202110107975A CN112933824A CN 112933824 A CN112933824 A CN 112933824A CN 202110107975 A CN202110107975 A CN 202110107975A CN 112933824 A CN112933824 A CN 112933824A
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- wall
- box body
- dust
- box
- annular
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention belongs to the technical field of dust removing equipment, and discloses a dust removing device with a self-cleaning function for building construction, which is technically characterized in that: the power distribution box comprises a box body, fixed mounting has the horizontally water-stop sheet that is located the dust conveying pipe top between the box inner wall, first annular has been seted up to the box inner wall of water-stop sheet below, rotate on the first annular and install horizontally blebbling board, the roof of blebbling board and diapire respectively fixed mounting have the first clean pole of hugging closely the box inner wall, annular second annular has been seted up to the box inner wall of water-stop sheet top, circular swivel ring is installed to the second annular internal rotation, two sets of second clean poles of hugging closely the box inner wall about the circumference inner wall fixed mounting of swivel ring, the swivel ring is connected with drive disk assembly with the blebbling board, fixed mounting has the exhaust funnel that upwards extends the box between the box inner wall of second clean pole top, fixed mounting has upper and lower two sets of annular.
Description
Technical Field
The invention relates to the technical field of dust removing equipment, in particular to a dust removing device with a self-cleaning function for building construction.
Background
The dust pollution of construction refers to the pollution to the atmosphere caused by dust particles generated in the production activities of building construction, road and pipeline construction, house demolition, material transportation, material stacking, road cleaning, mud land exposure and the like, the dust pollution has serious influence on the lives of residents in places with large living amount of people around residential areas and the like, and the existing dust removal device generally adopts sprinkling type dust removal or dust extraction type dust removal.
But the environmental protection effect of general dust collector on the market is not very good now, and a large amount of water resources can be wasted in watering formula dust removal, brings some unnecessary losses for the building site, and the dust formula of taking out removes dust and can lead to removing dust not thoroughly enough, and the air that discharges out still can lead to the fact certain pollution to the environment.
In order to solve the above problems, chinese patent (publication No. CN 211659573U, published as 2020.10.13) discloses a dust removing device for building construction, which can effectively treat dust entrained in air by arranging a water inlet pipe, a nozzle, a first filter screen and a second filter screen in cooperation with each other. However, the contact time between the air and the water of the device is short, the contact area is small, the dust mixed in the air cannot be effectively filtered, and the device is lack of a part for cleaning the inside of the device body, so that a large amount of impurities are easily attached to the inside of the device to influence the use.
Disclosure of Invention
The invention aims to provide a dust removal device with a self-cleaning function for building construction, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a dust removing device with a self-cleaning function for building construction comprises a box body, wherein supporting legs are fixedly arranged on the periphery of the bottom of the box body, rollers are rotatably arranged at the bottom ends of the supporting legs, a sewage discharge funnel extending to the outside of the box body is fixedly arranged at the bottom of the box body, a control valve is fixedly arranged on the sewage discharge funnel, a dust hood is fixedly arranged on the right side wall of the box body and communicated with a dust conveying pipe extending to the upper part of the sewage discharge funnel at the bottom of the box body, a fan fixed on the side wall of the box body is connected onto the dust conveying pipe, a horizontal water stop plate positioned above the dust conveying pipe is fixedly arranged between the inner walls of the box body, a first annular groove is formed in the inner wall of the box body below the water stop plate, a horizontal foaming plate is rotatably arranged on the first annular groove, first cleaning rods tightly attached to the inner wall of the box body are fixedly arranged on the top wall and the bottom wall of, annular second annular is seted up to the box inner wall of water-stop sheet top, circular shape swivel ring is installed to second annular inslot internal rotation, two sets of second cleaning rod who hugs closely the box inner wall about the circumference inner wall fixed mounting of swivel ring, the circumference lateral wall fixed mounting of swivel ring has the second ring gear that is located the second annular inslot, the swivel ring is connected with drive disk assembly with the foaming board, fixed mounting has the exhaust funnel that upwards extends the box between the box inner wall of second cleaning rod top, two sets of annular sprinkler pipes about fixed mounting has on exhaust funnel's the inner wall, fixed mounting has the even equidistant distribution's of multiunit atomizing nozzle on the lateral wall of sprinkler pipe orientation box inside, box left side wall fixed mounting has the pump machine, the pump machine is through extending to the inside raceway of box and sprinkler pipe intercommunication.
As a further scheme of the invention: the inner wall of the exhaust funnel is fixedly provided with a turbidity detector, the side wall of the exhaust funnel is connected with an air return pipe which extends out of the box body and is communicated with the dust conveying pipe, and the air return pipe and the exhaust funnel are respectively and fixedly provided with an electromagnetic control valve.
As a further scheme of the invention: the circumference inner wall fixed mounting of rotating ring has the horizontally installing support of multiunit, and the common fixed mounting of the relative one end of multiunit installing support has the montant, and fixed mounting has the multiunit puddler on the montant.
As a further scheme of the invention: the transmission part comprises a transmission case fixedly installed on the left side wall of the case body, a double-shaft motor is fixedly installed in the transmission case, and transmission toothed discs which extend into the case body and are meshed and connected with the first toothed ring and the second toothed ring are fixedly installed on output shafts on the upper side and the lower side of the double-shaft motor respectively.
As a further scheme of the invention: annular spacing grooves are respectively formed in the inner top wall and the inner bottom wall of the second annular groove, and limiting strips clamped with the spacing grooves are respectively and fixedly installed on the top wall and the bottom wall of the rotating ring.
As a further scheme of the invention: and a plurality of groups of stirring cones which are distributed at intervals with the through holes are respectively and fixedly arranged on the top wall and the bottom wall of the foaming plate.
As a still further scheme of the invention: and a porous pipe is fixedly arranged at one end of the dust conveying pipe positioned in the box body.
Compared with the prior art, the invention has the beneficial effects that: the foaming plate driven by the transmission part and placed in water can efficiently break up dust-mixed air discharged from the dust conveying pipe, so that a plurality of groups of small foams are formed, the contact area between the foams and water is increased, and the filtering effect is improved; by arranging the first cleaning rod and the second cleaning rod which rotate around the inner wall of the box body, dust and impurities attached to the inner wall of the box body can be efficiently cleaned, and the phenomenon that the impurities are attached to the inner wall of the box body to influence the use of equipment is avoided; through setting up montant and the puddler that is driven by the swivel becket, can effectively improve the adsorption efficiency of air and atomized water and then improve the filter effect to the dust.
Drawings
Fig. 1 is a schematic structural diagram of a dust removing device with a self-cleaning function for building construction.
Fig. 2 is a schematic top view of a rotating ring and its connecting structure in a dust removing device with self-cleaning function for building construction.
Fig. 3 is an enlarged schematic view of a in fig. 1.
Fig. 4 is a schematic view of a rotating ring of a dust removing device with a self-cleaning function for building construction and a structure thereof.
FIG. 5 is a schematic view of a foam board structure of a dust collector with self-cleaning function for building construction.
Wherein: the device comprises a box body 1, supporting legs 2, rollers 3, a sewage funnel 4, a control valve 5, a dust hood 6, a fan 7, a dust conveying pipe 8, a perforated pipe 9, a first annular groove 10, a first toothed ring 11, a foaming plate 12, a through hole 13, a water stop plate 14, a first cleaning rod 15, a second annular groove 16, a rotating ring 17, a second cleaning rod 18, a second toothed ring 19, a transmission part 20, a transmission box 201, a double-shaft motor 202, a transmission toothed disc 203, an exhaust funnel 21, a pump 22, a spray pipe 23, a turbidity detector 24, an air return pipe 25, an electromagnetic control valve 26, a mounting bracket 27, a vertical rod 28, a stirring rod 29, a limiting groove 30, a limiting strip 31 and a stirring cone 32.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
Referring to fig. 1-5, a dust removing device with a self-cleaning function for building construction comprises a box body 1, supporting legs 2 are fixedly arranged on the periphery of the bottom of the box body 1, rollers 3 are rotatably arranged at the bottoms of the supporting legs 2, a blow-down funnel 4 extending to the outside of the box body 1 is fixedly arranged at the bottom of the box body 1, a control valve 5 is fixedly arranged on the blow-down funnel 4, a dust hood 6 is fixedly arranged on the right side wall of the box body 1, the dust hood 6 is communicated with a dust conveying pipe 8 extending to the upper part of the blow-down funnel 4 at the bottom of the box body 1, a fan 7 fixed on the side wall of the box body 1 is connected on the dust conveying pipe 8, a horizontal water stop plate 14 positioned above the dust conveying pipe 8 is fixedly arranged between the inner walls of the box body 1, a first annular groove 10 is arranged on the inner wall of the box body 1 below the water stop plate 14, a horizontal foaming plate 12 is rotatably arranged on the, the bubbling plate 12 is provided with through holes 13 which are uniformly distributed, the circumferential side wall of the bubbling plate 12 is fixedly provided with a first toothed ring 11 which is positioned in a first annular groove 10, the inner wall of the box body 1 above the water-stop plate 14 is provided with an annular second annular groove 16, the second annular groove 16 is internally rotatably provided with a circular rotating ring 17, the circumferential inner wall of the rotating ring 17 is fixedly provided with a left group and a right group of second cleaning rods 18 which are tightly attached to the inner wall of the box body 1, the circumferential side wall of the rotating ring 17 is fixedly provided with a second toothed ring 19 which is positioned in the second annular groove 16, the rotating ring 17 and the bubbling plate 12 are connected with a transmission part 20, an exhaust funnel 21 which upwards extends out of the box body 1 is fixedly arranged between the inner walls of the box body 1 above the second cleaning rods 18, the inner wall of the exhaust funnel 21 is fixedly provided with an upper group and a lower group of annular spray pipes 23, box 1 left side wall fixed mounting has pump machine 22, pump machine 22 is through extending to the inside raceway and the spray line 23 intercommunication of box 1, carry out the water injection to box 1 inside of water-stop sheet 14 below, it aims at the dust region with suction hood 6 to the place that has the dust to utilize gyro wheel 3 to move box 1, start fan 7 and carry the air that will be mingled with the dust through suction hood 6 and dust conveying pipe 8 and carry the bottom and contact with water in box 1, carry out preliminary adsorption filtration through water to the dust in the air, start pump machine 22 and carry out the atomizing humidification through spraying scraper 23 to box 1 inner chamber above water-stop sheet 14, the air after the water filtration passes water-stop sheet 14 and fully contacts with the atomizing water and then secondary adsorption filtration, can be abundant efficient with the dust that is mingled with in the air clean, it rotates in aqueous to drive foaming board 12 through drive part 20, can break up the air that dust conveying pipe 8 carried through multiunit through 13 and form the less bubble of multiunit and make it fully contact with water Further improve the filter effect to dust in the air, drive disk assembly 20 drives swivel ring 17 and rotates and then drives the clean pole of second 18 and hug closely box 1 inner wall rotation and clear up the adnexed impurity dust of box 1 inner wall for the dust falls to the aquatic downwards and further deposits in blowdown funnel 4, and the box 1 is discharged again to the air isomorphism exhaust funnel 21 after twice filters.
Example two
On the basis of the first embodiment, a turbidity detecting instrument 24 is fixedly installed on the inner wall of the exhaust funnel 4, the side wall of the exhaust funnel 4 is connected with an air return pipe 25 which extends out of the box body 1 and is communicated with the dust conveying pipe 8, electromagnetic control valves 26 are respectively and fixedly installed on the air return pipe 25 and the exhaust funnel 21, the filtered air is detected by the turbidity detecting instrument 24, when the detection is unqualified, the air is secondarily filtered by the air return pipe 25, a plurality of groups of horizontal installation brackets 27 are fixedly installed on the circumferential inner wall of the rotating ring 17, a vertical rod 28 is fixedly installed at the opposite ends of the plurality of groups of installation brackets 27 together, a plurality of groups of stirring rods 29 are fixedly installed on the vertical rod 28, the rotating ring 17 rotates to drive the vertical rod 28 to rotate through the installation brackets 27, the air is fully contacted with atomized water through the stirring rods 29 to improve the filtering effect on dust in the air, the transmission component 20 comprises, fixed mounting has double-shaft motor 202 in transmission case 201, double-shaft motor 202's upper and lower both sides output shaft respectively fixed mounting extend to in the box 1 and with first ring gear 11 and the transmission fluted disc 203 that the meshing of second ring gear 19 is connected, annular spacing groove 30 has been seted up respectively to the interior roof of second ring groove 16 and interior diapire, the roof of swivel ring 17 and diapire respectively fixed mounting have with spacing 31 of spacing groove 30 joint, respectively fixed mounting has multiunit and 13 interval distribution's of through-hole stirring awl 32 on foaming plate 12 roof and the diapire, further improve the filter effect of air in aqueous through stirring awl 32, dust conveying pipe 8 is located the inside one end fixed mounting of box 1 and has porous pipe 9, make the air divide into a plurality of bubbles through porous pipe 9 and adsorb the filtration in aqueous.
The working principle of the invention is as follows: the inner part of the box body 1 below the water-stop plate 14 is injected with water, the box body 1 is moved to a place with dust by using the roller 3 to align the dust hood 6 to a dust area, the air mixed with dust is conveyed to the bottom in the box body 1 by using the dust hood 6 and the dust conveying pipe 8 by the starting fan 7 to be contacted with water, the dust in the air is primarily absorbed and filtered by the water, the inner cavity of the box body 1 above the water-stop plate 14 is atomized and humidified by the starting pump machine 22 through the spraying and scraping pipe 23, the air after water filtration passes through the water-stop plate 14 to be fully contacted with the atomized water and then is secondarily absorbed and filtered, the dust mixed with the air can be fully and efficiently filtered, the foaming plate 12 is driven to rotate in the water by the transmission part 20, the air conveyed by the dust conveying pipe 8 can be scattered through a plurality of groups of through the through holes 13 to form a plurality of groups of smaller foams so that the air is fully, the transmission part 20 drives the rotating ring 17 to rotate so as to drive the second cleaning rod 18 to be tightly attached to the inner wall of the box body 1 to rotate so as to clean impurity and dust attached to the inner wall of the box body 1, so that the dust falls into water downwards and further precipitates into the sewage discharge funnel 4, and the air filtered twice is discharged out of the box body 1 again through the air isomorphic exhaust funnel 21.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. A dust removal device with a self-cleaning function for building construction comprises a box body (1), supporting legs (2) are fixedly installed on the periphery of the bottom of the box body (1), rollers (3) are rotatably installed at the bottoms of the supporting legs (2), a sewage funnel (4) extending to the outside of the box body (1) is fixedly installed at the bottom of the box body (1), a control valve (5) is fixedly installed on the sewage funnel (4), a dust hood (6) is fixedly installed on the right side wall of the box body (1), the dust hood (6) is communicated with a dust conveying pipe (8) extending to the upper portion of the sewage funnel (4) at the bottom of the box body (1), a fan (7) fixed on the side wall of the box body (1) is connected onto the dust conveying pipe (8), and the dust removal device is characterized in that a horizontal water-stop plate (14) located above the dust conveying pipe (8) is fixedly installed between the inner walls of the box body (1), a first annular groove, a horizontal foaming plate (12) is rotatably arranged on the first ring groove (10), a first cleaning rod (15) tightly attached to the inner wall of the box body (1) is fixedly arranged on the top wall and the bottom wall of the foaming plate (12) respectively, through holes (13) which are uniformly distributed are formed in the foaming plate (12), a first toothed ring (11) positioned in the first ring groove (10) is fixedly arranged on the circumferential side wall of the foaming plate (12), an annular second ring groove (16) is formed in the inner wall of the box body (1) above the water-stop plate (14), a circular rotating ring (17) is rotatably arranged in the second ring groove (16), a left group and a right group of second cleaning rods (18) tightly attached to the inner wall of the box body (1) are fixedly arranged on the circumferential inner wall of the rotating ring (17), a second toothed ring (19) positioned in the second ring groove (16) is fixedly arranged on the circumferential side wall of the rotating ring (17), and the rotating ring (17) and the foaming plate, fixed mounting has exhaust funnel (21) that upwards extends box (1) between box (1) inner wall of second cleaning rod (18) top, two sets of annular spray pipes (23) about fixed mounting has on the inner wall of exhaust funnel (21), spray pipe (23) are towards fixed mounting has the even equidistant atomizing nozzle that distributes of multiunit on the inside lateral wall of box (1), box (1) left side wall fixed mounting has pump machine (22), pump machine (22) are through extending to inside raceway and spray pipe (23) intercommunication of box (1).
2. The dust collector with the self-cleaning function for building construction as claimed in claim 1, wherein the inner wall of the exhaust funnel (4) is fixedly provided with a turbidity detector (24), the side wall of the exhaust funnel (4) is connected with an air return pipe (25) which extends out of the box body (1) and is communicated with the dust conveying pipe (8), and the air return pipe (25) and the exhaust funnel (21) are respectively and fixedly provided with an electromagnetic control valve (26).
3. The dust collector with self-cleaning function for building construction according to claim 1, wherein a plurality of horizontal mounting brackets (27) are fixedly mounted on the inner wall of the circumference of the rotating ring (17), a vertical rod (28) is fixedly mounted at one end of the rotating ring opposite to the plurality of horizontal mounting brackets (27), and a plurality of stirring rods (29) are fixedly mounted on the vertical rod (28).
4. The dust removing device with the self-cleaning function for the building construction according to claim 1, wherein the transmission part (20) comprises a transmission case (201) fixedly installed on the left side wall of the box body (1), a double-shaft motor (202) is fixedly installed in the transmission case (201), and output shafts on the upper side and the lower side of the double-shaft motor (202) are respectively and fixedly installed with a transmission fluted disc (203) which extends into the box body (1) and is meshed and connected with the first toothed ring (11) and the second toothed ring (19).
5. The dust removing device with the self-cleaning function for building construction according to claim 1, wherein the inner top wall and the inner bottom wall of the second ring groove (16) are respectively provided with an annular limiting groove (30), and the top wall and the bottom wall of the rotating ring (17) are respectively fixedly provided with a limiting strip (31) clamped with the limiting groove (30).
6. The dust removing device with the self-cleaning function for the building construction as claimed in any one of claims 1 to 5, wherein a plurality of groups of stirring cones (32) which are distributed at intervals with the through holes (13) are respectively and fixedly arranged on the top wall and the bottom wall of the foaming plate (12).
7. The dust removing device with self-cleaning function for building construction as claimed in claim 6, wherein a perforated pipe (9) is fixedly installed at one end of the dust conveying pipe (8) positioned inside the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110107975.4A CN112933824A (en) | 2021-01-27 | 2021-01-27 | Dust collector who has self-cleaning function for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110107975.4A CN112933824A (en) | 2021-01-27 | 2021-01-27 | Dust collector who has self-cleaning function for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112933824A true CN112933824A (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110107975.4A Withdrawn CN112933824A (en) | 2021-01-27 | 2021-01-27 | Dust collector who has self-cleaning function for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112933824A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599946A (en) * | 2021-08-07 | 2021-11-05 | 赵永生 | Non-ferrous metal spare smelting exhaust gas filter equipment |
| CN113634082A (en) * | 2021-09-09 | 2021-11-12 | 蒋长红 | Environment-friendly dust removal equipment for cement production and use method thereof |
| CN114378426A (en) * | 2021-12-17 | 2022-04-22 | 浙江奥卡耐火材料有限公司 | Fiberboard cutting device |
| CN117309504A (en) * | 2023-11-30 | 2023-12-29 | 天宇利水信息技术成都有限公司 | Rainwater detection device with cleaning and calibration functions |
-
2021
- 2021-01-27 CN CN202110107975.4A patent/CN112933824A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599946A (en) * | 2021-08-07 | 2021-11-05 | 赵永生 | Non-ferrous metal spare smelting exhaust gas filter equipment |
| CN113634082A (en) * | 2021-09-09 | 2021-11-12 | 蒋长红 | Environment-friendly dust removal equipment for cement production and use method thereof |
| CN114378426A (en) * | 2021-12-17 | 2022-04-22 | 浙江奥卡耐火材料有限公司 | Fiberboard cutting device |
| CN117309504A (en) * | 2023-11-30 | 2023-12-29 | 天宇利水信息技术成都有限公司 | Rainwater detection device with cleaning and calibration functions |
| CN117309504B (en) * | 2023-11-30 | 2024-02-09 | 天宇利水信息技术成都有限公司 | Rainwater detection device with cleaning and calibration functions |
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Application publication date: 20210611 |
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| WW01 | Invention patent application withdrawn after publication |