CN119701447A - Medicine multistage filter for treating breast disease patient - Google Patents
Medicine multistage filter for treating breast disease patient Download PDFInfo
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- CN119701447A CN119701447A CN202510229593.7A CN202510229593A CN119701447A CN 119701447 A CN119701447 A CN 119701447A CN 202510229593 A CN202510229593 A CN 202510229593A CN 119701447 A CN119701447 A CN 119701447A
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Abstract
The invention discloses a medicine multi-stage filter for treating a patient with mammary gland diseases, which comprises a filter barrel, wherein the filter barrel is internally connected with a filter cartridge through a support frame, the filter cartridge is arranged in a plurality of layers, a first through hole is formed in the filter cartridge, a driving component is arranged on the filter barrel and comprises a rotating shaft arranged on the filter barrel, a cleaning component is arranged on the rotating shaft and comprises a support rod arranged on the rotating shaft, a cleaning rod is arranged on the support rod, and a cleaning piece is arranged on the outer side of the cleaning rod. This medicine multistage filter for breast disease patient treatment, multilayer cartridge filter's setting has shown and has improved filter fineness, has reduced the problem that needs series connection filtration to lead to whole maintenance and area to increase, and cleaning piece is clean cartridge filter inside, has guaranteed the cleanliness of cartridge filter, maintains stable filter effect, has reduced the jam and has led to whole medicine conveying speed to reduce.
Description
Technical Field
The invention relates to the technical field related to treatment of breast diseases, in particular to a medical multistage filter for treating breast disease patients.
Background
The drug filter has important effect on the treatment of patients with mammary gland diseases, can not only improve the curative effect of the drugs, but also reduce side effects and potential risks by effectively filtering impurities, particles and impure substances in the drugs, provides safer and more efficient treatment experience for patients, however, the existing drug filter for treating the breast disease patients has certain defects when in use, and in the use process, the filter is mostly provided with a single layer, and the whole filtering effect is insufficient, so that the purity and the treatment effect of the drug are affected, and the single-layer filter is easy to cause blocking phenomenon, so that the treatment is interrupted or the drug is wasted.
In order to overcome the defects, the prior art I (China patent with the application number 202022736399.3 and the application date 2020-11-16) is connected with a multistage filter in series, the multistage filter comprises a magnetic filter cylinder, a 60-mesh coarse filter cylinder, a 100-mesh coarse filter cylinder and a 200-mesh fine filter cylinder, wherein a feeding pipe is arranged at one end of the magnetic filter cylinder and communicated with the magnetic filter cylinder, the magnetic filter cylinder is connected with the 60-mesh coarse filter cylinder through a connecting pipe, the 60-mesh coarse filter cylinder is connected with the 100-mesh coarse filter cylinder through the connecting pipe, the 100-mesh coarse filter cylinder is connected with the 200-mesh fine filter cylinder through the connecting pipe, a discharging pipe is arranged on one side of the 200-mesh fine filter cylinder and communicated with the fine filter cylinder, drain pipes are arranged at the bottoms of the 100-mesh coarse filter cylinder and the 200-mesh fine filter cylinder, the multistage filter is connected in series, so that liquid can enter from a magnetic filter end, fine filtration is carried out by 200 meshes, and three filters are from coarse to fine filtration,
The multi-stage filter is characterized by comprising a main tank body, a water inlet, a water outlet, a backwashing inlet, a backwashing water outlet, a butterfly valve, an endoscope, a manhole, a pipe fitting, a discharge opening, an aeration opening, a stainless steel wedge-shaped filter layer, a quartz sand filter layer, an activated carbon filter layer and other parts, wherein the outside of the main tank body is fixedly provided with a surrounding pipe fitting through a flange bolt, a plurality of check valves are fixedly connected to the right side of the main tank body in series, the left lower end of the pipe fitting is provided with a stop valve, the upper left corner of the main tank body is provided with the endoscope and the manhole, the inside of the main tank body is provided with the stainless steel wedge-shaped filter layer, the quartz sand filter layer, the activated carbon filter layer, the butterfly valve, the backwashing water outlet, the water inlet, the water outlet, the backwashing water outlet, the water outlet and the water outlet, and the discharge opening from top to bottom, and the left lower side of the main tank body.
In the prior art, though the integral filtering efficiency can be improved, in the working process, the filter is connected in series or provided with a plurality of layers of filter layers for processing, the filter is connected in series for use, so that the whole drug delivery device becomes complex, the maintenance and the occupied area of the device are increased, the drug can meet larger resistance in the filtering process, the treatment effect is influenced, the arrangement of the plurality of layers of filter layers is easy to accumulate impurities to cause blockage, the flow velocity of the drug can be influenced, the maintenance and the processing are not convenient to carry out integrally, and the integral service life is shortened.
Aiming at the problems, the novel design is urgently needed on the basis of the original multi-stage filter for the medicines for treating the patients with the mammary gland diseases, so that the multi-stage filter for the medicines for treating the patients with the mammary gland diseases can be provided for well solving the problems.
Disclosure of Invention
The invention aims to provide a multi-stage filter for treating a breast disease patient, which aims to solve the problems that the prior market proposed by the background technology carries out treatment by connecting filters in series or arranging a plurality of filter layers, the use of the filters in series can complicate the whole drug delivery device, the maintenance and the occupied area of the device are increased, the drug can encounter larger resistance in the filtering process, the treatment effect is influenced, the arrangement of the plurality of filter layers can easily accumulate impurities to cause blockage, the flow rate of the drug can be influenced, the maintenance treatment is not carried out wholly, and the whole service life is shortened.
In order to achieve the purpose, the technical scheme is that the multi-stage medicine filter for treating the breast disease patients comprises a filter barrel, wherein the filter barrel is internally connected with a filter cartridge through a supporting frame, the filter cartridge is arranged in multiple layers, a first through hole is formed in the filter cartridge, a driving assembly is mounted on the filter barrel and comprises a rotating shaft mounted on the filter barrel, a cleaning assembly is arranged on the rotating shaft and comprises a supporting rod mounted on the rotating shaft, a cleaning rod is mounted on the supporting rod, a cleaning piece is arranged on the outer side of the cleaning rod, the filtering precision of the multi-layer filter cartridge is remarkably improved, the problems of integral maintenance and area increase caused by series filtration are reduced, the cleaning piece cleans the inside of the filter cartridge, the cleanliness of the filter cartridge is guaranteed, and the problem of reduction of integral medicine conveying speed caused by blockage is reduced.
Preferably, the drive assembly comprises a storage box arranged on the filter vat, a first motor is arranged in the storage box, the output end of the first motor is connected with a half gear, and the side end of the half gear is connected with a full gear in a meshed mode.
Preferably, the inside dwang that is provided with of all-gear, the torsional spring is installed in the dwang outside, be connected with the axis of rotation through the driving piece on the dwang, the axis of rotation is located inside the cartridge filter, and after half-gear continued to rotate and leave all-gear surface, the torsional spring resilience that sets up drives the dwang and resumes initial position to make clean pole at the inside reciprocal rotation of cartridge filter, strengthened clean effect, reduced the cartridge filter jam and lead to the inconvenient problem of drug delivery, improved the effect of overall treatment.
Preferably, the filter vat side is provided with the auxiliary vat, be provided with the second motor on the auxiliary vat, second motor output is connected with the pivot, the eccentric wheel is installed in the pivot outside, the eccentric wheel side is provided with conveying assembly.
Preferably, the conveying assembly comprises a conveying cylinder arranged at the side end of the eccentric wheel, a piston is arranged in the conveying cylinder, the eccentric wheel is contacted with the piston after rotating, the second motor drives the rotating shaft to rotate, the eccentric wheel at the outer side of the rotating shaft is enabled to hit the piston, and the piston moves in the conveying cylinder, so that the conveying cylinder is used, automatic conveying of filtered liquid medicine is achieved, working efficiency is improved, and manual intervention is reduced.
Preferably, the outside cover of piston is equipped with the spring, the transport section of thick bamboo is inside the cartridge filter through first pipe connection, the transport section of thick bamboo is inside supplementary bucket through second pipe connection, and the transport section of thick bamboo is inside the liquid medicine after filtering inside the cartridge filter is carried to supplementary bucket, has guaranteed the stability and the persistence of piston motion, ensures the steady of liquid medicine transportation process, avoids appearing carrying interruption or unstable condition, has improved the efficiency of whole treatment.
Preferably, the baffle is arranged inside the auxiliary barrel, the filter disc is arranged inside the auxiliary barrel, the brush disc is arranged on the filter disc, the brush disc is connected to the outer side of the rotating shaft, when the second motor drives the rotating shaft to rotate, the brush disc at the bottom of the rotating shaft rotates on the surface of the filter disc, so that the liquid medicine is subjected to fine treatment, stirring and secondary treatment are carried out on the liquid medicine, and the purity and uniformity of the liquid medicine are further improved.
Preferably, the inner bottom of the auxiliary barrel is communicated with the sleeve through a third pipeline, the sleeve is positioned at the outer side of the rotating shaft, and the sleeve is communicated with the inner cavity of the rotating shaft.
Preferably, the axis of rotation is linked together through bracing piece and cleaning rod inner chamber, the third through-hole has been seted up in the axis of rotation outside, the second through-hole has been seted up in the cleaning rod outside, and the cleaning solution passes through inside transmission of sleeve to axis of rotation and bracing piece inner chamber to spout through second through-hole and the third through-hole of seting up on axis of rotation and the cleaning rod, through back flush cleaning, effectively clear away attached impurity and residual liquid medicine, improved the maintenance efficiency of equipment, prolonged equipment life.
Compared with the prior art, the multi-stage filter for treating the mammary gland disease has the beneficial effects that the multi-stage filter for treating the mammary gland disease has the advantages that the arrangement of the multi-stage filter for treating the mammary gland disease remarkably improves the filtering precision, reduces the problems of integral maintenance and area increase caused by series filtration, ensures the cleanliness of the filter cylinder by the cleaning piece, maintains stable filtering effect, and reduces the problem of integral drug conveying speed reduction caused by blockage, and the multi-stage filter comprises the following specific contents:
(1) The arrangement of the multi-layer filter cartridge remarkably improves the filtering precision, reduces the problems of integral maintenance and area increase caused by series connection filtering, cleans the inside of the filter cartridge by the cleaning piece, ensures the cleanliness of the filter cartridge, and reduces the problem of integral drug delivery speed reduction caused by blockage;
(2) The second motor drives the rotating shaft to rotate, so that the eccentric wheel at the outer side of the rotating shaft hits the piston, and the piston moves in the conveying cylinder, so that the conveying cylinder is used, automatic conveying of filtered liquid medicine is realized, the working efficiency is improved, and manual intervention is reduced;
(3) The liquid medicine filtered in the filter cylinder is conveyed to the auxiliary cylinder by the conveying cylinder, so that the stability and the persistence of the movement of the piston are ensured, the stability of the liquid medicine conveying process is ensured, the condition of interruption or instability of conveying is avoided, and the efficiency of integral treatment is improved;
(4) When the second motor drives the rotating shaft to rotate, the brush disc at the bottom of the rotating shaft rotates on the surface of the filtering disc, so that the liquid medicine is subjected to fine treatment, and the liquid medicine is stirred and subjected to secondary treatment, so that the purity and uniformity of the liquid medicine are further improved;
(5) Cleaning solution is transmitted to the inner cavities of the rotating shaft and the supporting rod through the inside of the sleeve, is sprayed out through the second through hole and the third through hole which are formed in the rotating shaft and the cleaning rod, and is cleaned through back flushing, so that the attached impurities and residual liquid medicine are effectively removed, the maintenance efficiency of the equipment is improved, and the service life of the equipment is prolonged.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the overall side view of the present invention;
FIG. 3 is a schematic view of the overall cut-away structure of the present invention;
FIG. 4 is a schematic view of a cut-away structure of a storage case according to the present invention;
FIG. 5 is a schematic view of a cut-away structure of a filter cartridge of the present invention;
FIG. 6 is a schematic diagram of a half gear and full gear configuration of the present invention;
FIG. 7 is a schematic view of the connection structure of the support rod and the cleaning rod according to the present invention;
FIG. 8 is a schematic diagram of the overall rear view structure of the present invention;
FIG. 9 is a schematic diagram of the connection structure of the auxiliary barrel and the conveying barrel of the invention;
FIG. 10 is a schematic view of the connection structure of the rotating shaft and the eccentric wheel of the present invention.
In the figure, 1, a filter vat; 2, a supporting frame, 3, a filter cartridge, 4, a first through hole, 5, a storage box, 6, a first motor, 7, a half gear, 8, a full gear, 9, a rotating rod, 10, a torsion spring, 11, a driving piece, 12, a rotating shaft, 13, a supporting rod, 14, a cleaning rod, 15, a cleaning piece, 16, a second through hole, 17, a second motor, 18, an auxiliary barrel, 19, a rotating shaft, 20, an eccentric wheel, 21, a piston, 22, a conveying barrel, 23, a spring, 24, a first pipeline, 25, a second pipeline, 26, a baffle plate, 27, a filter disc, 28, a brush disc, 29, a third pipeline, 30, a sleeve, 31 and a third through hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: in the embodiment, the rotation shaft 12 drives the cleaning rod 14 to rotate in the filter cartridge 3 through the support rod 13, so that the cleaning member 15 cleans the interior of the filter cartridge 3, the automatic cleaning effectively reduces the frequency and the workload of manual cleaning and reduces the pollution risk possibly caused by manual operation, the technical scheme as shown in fig. 1-7 comprises a filter drum 1, the filter drum 1 is connected with the filter cartridge 3 through a support frame 2, the filter drum 3 is arranged in a multi-layer manner, a first through hole 4 is formed in the filter drum 3, a driving component is mounted on the filter drum 1 and comprises a rotation shaft 12 mounted on the filter drum 1, a cleaning component is arranged on the rotation shaft 12 and comprises a support rod 13 mounted on the rotation shaft 12, the cleaning rod 14 is mounted on the support rod 13, the cleaning member 15 is arranged outside the cleaning rod 14, the driving assembly comprises a storage box 5 arranged on a filter barrel 1, a first motor 6 is arranged in the storage box 5, the output end of the first motor 6 is connected with a half gear 7, the side end of the half gear 7 is connected with a full gear 8 in a meshed manner, a rotating rod 9 is arranged in the full gear 8, a torsion spring 10 is arranged outside the rotating rod 9, a rotating shaft 12 is connected to the rotating rod 9 through a driving piece 11, the rotating shaft 12 is positioned in a filter cylinder 3 and is used for conveying liquid medicine to be filtered into the filter barrel 1 and effectively filtering the liquid medicine through the filter cylinder 3 at the bottom of a support frame 2, the filter cylinder 3 is used for isolating the filtering substances required in the liquid medicine through a first through hole 4, the multi-layer filter cylinder 3 is convenient to carry out multi-layer filtration because the bottom of the support frame 2 is provided with the multi-layer filter cylinder 3, the arrangement of the multi-layer filter cylinder 3 obviously improves the filtering precision and can more thoroughly remove impurities in the liquid medicine, the high requirement of mammary gland disease treatment medicine to liquid medicine purity is met, the problem that needs series connection filtration leads to whole maintenance and area increase is reduced, open the inside first motor 6 of storage box 5, the first motor 6 output of setting drives half gear 7 and rotates, make half gear 7 drive the full gear 8 that side end meshing is connected rotate, make full gear 8 drive dwang 9 rotate, make things convenient for dwang 9 drive axis of rotation 12 through driving piece 11, make axis of rotation 12 drive clean pole 14 in the inside rotation of cartridge filter 3 through bracing piece 13, thereby make clean piece 15 clean cartridge filter 3 inside, automatic clean has effectively reduced artifical clear frequency and work load, the pollution risk that probably brings because of manual operation has guaranteed the cleanliness of cartridge filter 3 simultaneously, maintain stable filter effect, the problem that the jam leads to whole medicine conveying speed to reduce has been reduced, because dwang 9 outside is provided with torsional spring 10, consequently, after half gear 7 continues to rotate and leave full gear 8 surface, torsional spring 10 that sets up drives dwang 9 and resumes initial position, thereby make clean pole 14 clean inside the inside of cartridge filter 3, the clean effect of the filter cartridge filter is improved, the problem of the jam that the whole medicine conveying effect has been reduced, the problem of the jam is not had been solved, and the whole medicine is improved.
Embodiment two: in this embodiment, the delivery cylinder 22 delivers the filtered liquid medicine inside the filter cartridge 3 to the auxiliary barrel 18 through the cooperation of the first pipe 24 and the second pipe 25, so as to ensure the stability and the persistence of the movement of the piston 21 and ensure the stability of the liquid medicine delivery process, as shown in fig. 8-10, and discloses: the filter vat 1 side end is provided with the auxiliary vat 18, be provided with the second motor 17 on the auxiliary vat 18, the output of second motor 17 is connected with pivot 19, install eccentric wheel 20 outside pivot 19, eccentric wheel 20 side end is provided with the conveying component, the conveying component includes the conveying cylinder 22 of installing at eccentric wheel 20 side end, the inside piston 21 that is provided with of conveying cylinder 22, the eccentric wheel 20 rotates the back and contacts with piston 21, the outside cover of piston 21 has spring 23, conveying cylinder 22 is connected in cartridge filter 3 through first pipeline 24, conveying cylinder 22 passes through second pipeline 25 and connects in the inside of auxiliary vat 18, open the second motor 17 on the auxiliary vat 18, drive pivot 19 through second motor 17 and rotate, make eccentric wheel 20 outside pivot 19 piston 21, piston 21 moves in conveying cylinder 22 inside, make conveying cylinder 22 use, thereby realized the automatic transport to the liquid medicine after filtering, work efficiency has been improved, because the outside of piston 21 is provided with spring 23, consequently, after the piston 21 leaves the piston 21 surface of piston 21 and resumes the initial position through spring 23, thereby the stable condition of carrying cylinder 22 and the inside of first pipeline 24 is guaranteed to the filter vat and the steady motion of the filter vat is guaranteed to the inside or the auxiliary vat is carried out to the steady condition that the filter vat is carried out to the second pipeline 25 through the second motor 17 has been avoided, improving the efficiency of the whole treatment.
Embodiment III: in this embodiment, the brush disc 28 at the bottom of the rotating shaft 19 rotates on the surface of the filter disc 27, so that the liquid medicine is subjected to fine treatment, and is stirred and secondarily treated, so that the purity and uniformity of the liquid medicine are further improved, and as shown in fig. 3 and fig. 8-10, the brush disc disclosed is as follows: the baffle 26 is arranged in the auxiliary barrel 18, the filter disc 27 is arranged in the auxiliary barrel 18, the brush disc 28 is arranged on the filter disc 27, the brush disc 28 is connected to the outer side of the rotating shaft 19, the inner bottom of the auxiliary barrel 18 is communicated with the sleeve 30 through the third pipeline 29, the sleeve 30 is positioned on the outer side of the rotating shaft 12, the sleeve 30 is communicated with the inner cavity of the rotating shaft 12, the rotating shaft 12 is communicated with the inner cavity of the cleaning rod 14 through the supporting rod 13, the third through hole 31 is arranged on the outer side of the rotating shaft 12, the second through hole 16 is arranged on the outer side of the cleaning rod 14, the baffle 26 is used for blocking the inside of the auxiliary barrel 18 through the baffle 26, the cleaning liquid is conveniently arranged at the bottom of the baffle 26, the later cleaning is conveniently carried out, the arranged filter disc 27 is conveniently used for carrying out fine treatment on the liquid medicine, when the second motor 17 drives the rotating shaft 19 to rotate, the brush disc 28 at the bottom of the rotating shaft 19 rotates on the surface of the filtering disc 27, so that the liquid medicine is subjected to fine treatment, stirring and secondary treatment, the purity and uniformity of the liquid medicine are further improved, when the whole body needs to be cleaned, the third pipeline 29 is connected with a conveying member at the bottom in the auxiliary barrel 18, the conveying member is opened, so that cleaning liquid is conveyed into the sleeve 30 through the third pipeline 29, the cleaning liquid is conveyed into the inner cavities of the rotating shaft 12 and the supporting rod 13 through the sleeve 30, is sprayed out through the second through holes 16 and the third through holes 31 formed in the rotating shaft 12 and the cleaning rod 14, and is cleaned through back flushing, can go deep into inside each key position of equipment and clean, effectively clear away attached impurity and residual liquid medicine, shortened clean time greatly, improved the maintenance efficiency of equipment, prolonged equipment life.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510229593.7A CN119701447A (en) | 2025-02-28 | 2025-02-28 | Medicine multistage filter for treating breast disease patient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510229593.7A CN119701447A (en) | 2025-02-28 | 2025-02-28 | Medicine multistage filter for treating breast disease patient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119701447A true CN119701447A (en) | 2025-03-28 |
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ID=95100509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510229593.7A Pending CN119701447A (en) | 2025-02-28 | 2025-02-28 | Medicine multistage filter for treating breast disease patient |
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| CN215781881U (en) * | 2021-04-07 | 2022-02-11 | 江苏博领科技集团股份有限公司 | Filter is used in donkey-hide gelatin production |
| CN117815759A (en) * | 2024-03-06 | 2024-04-05 | 辽宁万泽澎建设工程有限公司 | Station forebay filter equipment that water-saving irrigation used |
| CN220802126U (en) * | 2023-09-04 | 2024-04-19 | 国华实业(河南)有限公司 | Papermaking auxiliary agent production filter equipment |
| CN221131246U (en) * | 2023-11-09 | 2024-06-14 | 润缘制药有限公司 | Multistage filtration equipment is used in medicine production |
| CN221752492U (en) * | 2024-01-30 | 2024-09-24 | 昆明汉高环境科技有限公司 | Water treatment filter |
| CN119084369A (en) * | 2024-11-08 | 2024-12-06 | 陈治利 | Axial flow fan convenient for filtering air impurities |
| CN119345779A (en) * | 2024-12-05 | 2025-01-24 | 南京市水利规划设计院股份有限公司 | A multi-layer purification treatment device for water conservancy river water treatment |
| CN119519578A (en) * | 2024-12-03 | 2025-02-25 | 中国大唐集团技术经济研究院有限责任公司 | Photovoltaic panel cleaning robot and use method |
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2025
- 2025-02-28 CN CN202510229593.7A patent/CN119701447A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210964096U (en) * | 2019-08-29 | 2020-07-10 | 佛山市富龙环保科技有限公司 | Avoid useless emulsion filter equipment of filtration pore jam |
| CN215781881U (en) * | 2021-04-07 | 2022-02-11 | 江苏博领科技集团股份有限公司 | Filter is used in donkey-hide gelatin production |
| CN220802126U (en) * | 2023-09-04 | 2024-04-19 | 国华实业(河南)有限公司 | Papermaking auxiliary agent production filter equipment |
| CN221131246U (en) * | 2023-11-09 | 2024-06-14 | 润缘制药有限公司 | Multistage filtration equipment is used in medicine production |
| CN221752492U (en) * | 2024-01-30 | 2024-09-24 | 昆明汉高环境科技有限公司 | Water treatment filter |
| CN117815759A (en) * | 2024-03-06 | 2024-04-05 | 辽宁万泽澎建设工程有限公司 | Station forebay filter equipment that water-saving irrigation used |
| CN119084369A (en) * | 2024-11-08 | 2024-12-06 | 陈治利 | Axial flow fan convenient for filtering air impurities |
| CN119519578A (en) * | 2024-12-03 | 2025-02-25 | 中国大唐集团技术经济研究院有限责任公司 | Photovoltaic panel cleaning robot and use method |
| CN119345779A (en) * | 2024-12-05 | 2025-01-24 | 南京市水利规划设计院股份有限公司 | A multi-layer purification treatment device for water conservancy river water treatment |
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Application publication date: 20250328 |