CN210874289U - Device for collecting floating objects in environmental sewage - Google Patents
Device for collecting floating objects in environmental sewage Download PDFInfo
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- CN210874289U CN210874289U CN201921867600.2U CN201921867600U CN210874289U CN 210874289 U CN210874289 U CN 210874289U CN 201921867600 U CN201921867600 U CN 201921867600U CN 210874289 U CN210874289 U CN 210874289U
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- filter screen
- shell
- pressing plate
- rotating shaft
- scraper
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Abstract
The utility model discloses a collection device of floater in environmental sewage, it includes: the upper part of the shell is provided with a water inlet, the lower part of the shell is provided with a discharge hole, and the bottom of the shell is provided with a water outlet; the filter screen is internally connected inside the shell and is positioned below the water inlet; a cover body; the bag breaking mechanism comprises a pressing plate, a plurality of cones, a scraper, a vertically arranged rotating shaft and a connecting rod, wherein the pressing plate is positioned above the filter screen, the cones are arranged on the lower surface of the pressing plate at intervals, the scraper is positioned on the upper surface of the filter screen, and the connecting rod is used for connecting the rotating shaft and the cover body. The utility model discloses can solve the problem that the plastic bag blockked up the mesh in filtering process, guarantee the filterable normal clear of sewage, improve sewage treatment plant's work efficiency.
Description
Technical Field
The utility model relates to the technical field of sewage treatment equipment. More specifically, the utility model relates to a collection device of floater in environmental sewage.
Background
The urban domestic sewage and industrial wastewater are both primarily purified by a sewage treatment device so that the water quality meets the discharge requirement, and then can be discharged, the existing sewage treatment is generally firstly filtered to remove suspended solid impurities, then is purified by using a chemical reagent, and finally is disinfected and sterilized; for sewage, especially domestic sewage, containing more plastic bags, due to the impermeability of plastic products, floaters in the sewage, especially plastic bags, easily block meshes of a filter screen during filtering, in the filtering process, workers need to regularly and manually clear the floaters adhered to the filter screen, otherwise, the filtering rate of the sewage is influenced, and even filtering cannot be realized.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model also aims at providing a collection device of floater in the environmental sewage, it can collect the floater in the sewage when sewage just filters, guarantees sewage filterable normal clear, improves sewage treatment plant's work efficiency.
In order to achieve these objects and other advantages in accordance with the present invention, there is provided a collecting device for floating objects in environmental sewage, comprising:
the water inlet is arranged at the upper part of one side of the shell, the discharge port is arranged at the lower part of the other side of the shell, and the other side of the shell is provided with an openable/closable door body which can cover the discharge port; a water outlet is formed in the bottom of the shell;
the filter screen is horizontally and internally connected inside the shell and positioned below the water inlet, a circular track concentric with the filter screen is arranged on the upper surface of the filter screen, a first through hole is formed in one side, close to the discharge port, of the filter screen and communicated with the discharge port through a material guide pipe, and the first through hole and the track are not interfered with each other;
the cover body is horizontally positioned on the filter screen, a first sliding block is arranged on the lower surface of the cover body and is clamped in the track in a sliding mode, and the cover body can completely cover the first through hole;
broken bag mechanism, it includes:
the pressing plate is horizontally positioned in the shell and above the filter screen, and a plurality of second through holes penetrating up and down are uniformly arranged on the pressing plate at intervals; the circumferential side edge of the pressure plate is in contact with but not connected with the inner wall of the shell, the shell does not limit the upward and downward movement of the pressure plate, and the movement of the pressure plate in the vertical direction is driven by a first driving mechanism;
the cones are uniformly distributed between the pressing plate and the filter screen at intervals, any cone is vertically arranged, the upper end of each cone is fixedly connected with the lower surface of the pressing plate, and the lower end of each cone is provided with a sharp part; any cone body and any second through hole are not interfered with each other;
the scraper is in a strip shape and extends along the horizontal direction, the scraper is positioned on the filter screen, the midpoint of the scraper is positioned on the axis of the shell, the bottom of the scraper is in contact with the upper surface of the filter screen, and the filter screen does not limit the horizontal rotation of the scraper;
the rotating shaft is vertically arranged and is coaxial with the shell, the upper end of the rotating shaft is rotatably connected with the top surface of the shell, and the lower end of the rotating shaft vertically and downwards sequentially penetrates through the top surface of the shell and the pressing plate and is fixedly connected with the top of the scraper; the rotation of the rotating shaft is driven by a second driving mechanism, the rotation of the rotating shaft is not limited by the pressing plate, and the up-and-down movement of the pressing plate is not limited by the rotating shaft;
the connecting rod is positioned between the pressing plate and the filter screen, the connecting rod is of an inverted L-shaped structure, the free end of the horizontal part of the connecting rod is fixedly connected with the lower part of the rotating shaft, and the free end of the vertical part of the connecting rod is fixedly connected with the upper surface of the cover body; the length of the vertical part of the connecting rod is less than that of any awl; any awl and the connecting rod do not interfere with each other.
Preferably, in the device for collecting floating objects in environmental sewage, the first through hole and the cover body are both circular, and the diameter ratio of the first through hole to the cover body is 0.9: 1;
the distance from the circle center of the first through hole to the circle center of the filter screen is equal to the distance from the circle center of the cover body to the circle center of the filter screen.
Preferably, in the device for collecting floating objects in environmental sewage, the first driving mechanism is a cylinder which is fixedly arranged at the top of the housing, and a piston rod of the cylinder vertically penetrates through the top surface of the housing downwards and is fixedly connected with the upper surface of the pressing plate.
Preferably, the second driving mechanism is a motor and is fixedly arranged at the top of the housing, and an output shaft of the motor penetrates through the top surface of the housing and is fixedly connected with the rotating shaft.
Preferably, the collection device of floater in the environmental sewage, the symmetry is equipped with a pair of spout on the inner wall of casing, arbitrary spout extends along vertical direction, the both sides of clamp plate are equipped with a second slider respectively, a second slider slides the card and locates in a spout.
Preferably, in the collecting device for the floating objects in the environmental sewage, any second through hole is circular and has a diameter of 1-3 cm.
Preferably, in the device for collecting floating objects in environmental sewage, a mesh hole is arranged right below any one of the cones, and the sharp part at the lower end of the cone can be vertically inserted downwards into the corresponding mesh hole.
Preferably, in the device for collecting floating objects in environmental sewage, the ratio of the length of the scraper to the diameter of the filter screen is 0.95: 1.
The utility model discloses at least, include following beneficial effect:
the utility model discloses when carrying out sewage filtration, to the adhesion floater on the filter screen, puncture, remove and collect like the plastic bag, avoid floater (plastic bag) to block up the mesh of filter screen, lead to normally filtering, need not manual operation, reduce intensity of labour, improve sewage filtration efficiency, have higher economical and practical.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention in one embodiment;
fig. 2 is a schematic structural diagram of a bag breaking mechanism and a filter screen according to another embodiment of the present invention.
Description of reference numerals: 1-shell 11-water inlet 12-water outlet 13-material guide pipe 2-filter screen 21-track 22-first through hole 3-cover 41-pressing plate 411-second through hole 42-cone 43-scraping plate 44-rotating shaft 45-connecting rod 5-cylinder 6-motor
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, the utility model provides a 1, collection device of floater in environmental sewage, its characterized in that, it includes:
the device comprises a shell 1, a water inlet 11, a discharge port, a door body and a water outlet control device, wherein the shell 1 is of a vertically arranged hollow cylinder structure, the upper part of one side of the shell 1 is provided with the water inlet 11, the lower part of the other side of the shell is provided with the discharge port, and the other side of the shell 1 is provided with the door body which can be opened/closed and can cover the discharge; a water outlet 12 is formed in the bottom of the shell 1;
the filter screen 2 is horizontally and internally connected in the shell 1 and is positioned below the water inlet 11, a circular track 21 concentric with the filter screen 2 is arranged on the upper surface of the filter screen 2, a first through hole 22 is arranged on one side of the filter screen 2 close to the discharge hole and communicated with the discharge hole through a material guide pipe 13, and the first through hole 22 and the track 21 are not interfered with each other;
the cover body 3 is horizontally positioned on the filter screen 2, a first sliding block is arranged on the lower surface of the cover body 3 and is clamped in the track 21 in a sliding manner, and the cover body 3 can completely cover the first through hole 22;
broken bag mechanism, it includes:
the pressing plate 41 is horizontally positioned inside the shell 1 and above the filter screen 2, and a plurality of second through holes 411 which penetrate through the pressing plate 41 up and down are uniformly arranged at intervals; the circumferential side edge of the pressure plate 41 is in contact with but not connected with the inner wall of the shell 1, the shell 1 does not limit the up-and-down movement of the pressure plate 41, and the movement of the pressure plate 41 in the vertical direction is driven by a first driving mechanism;
the cones are uniformly distributed between the pressing plate 41 and the filter screen 2 at intervals, any cone 42 is vertically arranged, the upper end of the cone is fixedly connected with the lower surface of the pressing plate 41, and the lower end of the cone is provided with a sharp part; any one cone 42 does not interfere with any one second through hole 411;
a scraper 43, which is long and extends along the horizontal direction, the scraper 43 is located on the filter screen 2, the midpoint of the scraper is located on the axis of the housing 1, the bottom of the scraper 43 is in contact with the upper surface of the filter screen 2, and the filter screen 2 does not limit the horizontal rotation of the scraper 43; that is, the bottom of the scraper 43 is only in contact with the upper surface of the filter screen 2 but not connected, when the scraper 43 rotates horizontally, the plastic bag on the filter screen 2 can be driven to move, and finally the plastic bag moves into the material guide pipe 13 through the first through hole 22;
the rotating shaft 44 is vertically arranged and is coaxially arranged with the shell 1, the upper end of the rotating shaft 44 is rotatably connected with the top surface of the shell 1, and the lower end of the rotating shaft 44 vertically and downwards sequentially penetrates through the top surface of the shell 1 and the pressing plate 41 and is fixedly connected with the top of the scraping plate 43; the rotation of the rotating shaft 44 is driven by a second driving mechanism, the rotating shaft 44 does not limit the rotation of the rotating shaft 44, and the rotating shaft 44 does not limit the up-and-down movement of the pressing plate 41; the rotation of the rotating shaft 44 drives the scraping plate 43 to horizontally rotate relative to the filter screen 2;
the connecting rod 45 is positioned between the pressing plate 41 and the filter screen 2, the connecting rod 45 is of an inverted L-shaped structure, the free end of the horizontal part of the connecting rod is fixedly connected with the lower part of the rotating shaft 44, and the free end of the vertical part of the connecting rod is fixedly connected with the upper surface of the cover body 3; the connecting rod 45 mainly connects the rotating shaft 44 with the cover body 3 to realize linkage of the rotating shaft 44 and the cover body 3; the length of the vertical part of the connecting rod 45 is less than that of any awl; any awl and the connecting rod 45 do not interfere with each other; the connecting rod 45, the cover body 3 and the scraper 43 do not interfere with each other.
In the technical scheme, the utility model discloses when carrying out sewage filtration, prick the plastic bag of adhesion on filter screen 2 to remove, avoid the plastic bag to block up the mesh of filter screen 2, lead to normally filtering, need not manual operation, reduce intensity of labour, improve sewage filtration efficiency, have higher economical and practical.
Before sewage is filtered, the pressing plate 41 is moved upwards to the position above the water inlet 11, and the cover body 3 is positioned at the position which completely covers the first through hole 22; the door body is in a closed state, and the discharge hole is completely covered;
when sewage is filtered, sewage to be filtered is discharged into the shell 1 through the water inlet 11, then the water inlet 11 is sealed, the sewage to be filtered is positioned between the pressing plate 41 and the filter screen 2, the sewage is primarily filtered through meshes of the filter screen 2, meanwhile, the pressing plate 41 vertically moves downwards under the drive of the first driving mechanism, the pressing plate 41 generates downward extrusion force on the sewage to be filtered, the sewage filtering speed is accelerated, the lower end parts of a plurality of cones 42 arranged on the lower surface of the pressing plate 41 are sharp parts, the pressing plate 41 drives the plurality of cones 42 to move downwards in the downward moving process, the sharp parts can be provided with floaters of the sewage, particularly plastic bags capable of containing water to be punctured, so that the sewage in the plastic bags is discharged, the pressing plate 41 continuously moves downwards to the position where the sharp parts at the lower end parts of the cones 42 can be contacted with the upper surface of the filter screen 2, and the sharp parts can be punctured with up-and down through, the floating objects are prevented from blocking the meshes of the filter screen 2, and the normal operation of sewage filtration is ensured;
after the sewage to be filtered completely passes through the filter screen 2, the sewage is discharged through the water outlet 12 and enters the next purification process, the first driving mechanism drives the pressing plate 41 to vertically move upwards, and the pressing plate 41 and any cone 42 move to a position where the rotating shaft 44, the connecting rod 45 and the cover body 3 are not interfered; the second driving mechanism drives the rotating shaft 44 to rotate around the axis of the second driving mechanism, the scraper 43 is driven to horizontally rotate, the scraper 43 can drive the floating objects adhered to the upper surface of the filter screen 2, the scraper 43 can drive the cover body 3 to horizontally rotate around the axis of the rotating shaft 44 while rotating, the cover body 3 opens the first through hole 22, the floating objects driven by the scraper 43 can move into the material guide pipe 13 through the first through hole 22 when moving to the position of the first through hole 22, finally, the floating objects on the upper surface of the filter screen 2 are collected into the material guide pipe 13, and the door body is opened to move out the floating objects in the material guide pipe 13 through the discharge hole; thereby completing the removal of the floating materials in the sewage; closing the door body; the cover 3 is moved to a position where the first through hole 22 is completely covered by rotating the rotating shaft 44, the pressing plate 41 is moved upward above the water inlet 11, and the water inlet 11 is opened, so that the next filtration step can be performed.
In another technical solution, in the device for collecting floating objects in environmental sewage, the first through hole 22 and the cover body 3 are both circular, and the diameter ratio of the first through hole 22 to the cover body 3 is 0.9: 1; ensuring that the cover 3 can completely cover the first through hole 22;
the distance from the center of the first through hole 22 to the center of the filter screen 2 is equal to the distance from the center of the cover 3 to the center of the filter screen 2. When the cover 3 rotates to the center coinciding with the center of the first through hole 22, the cover 3 completely covers the first through hole 22. In practical application, in order to ensure that the floating objects can be quickly scraped into the material guiding pipe 13, the diameters of the first through hole 22 and the cover body 3 can be designed to be as large as possible, so as to ensure that the first through hole 22 is not in contact with the track 21, and the cover body 3 can rotate within the range of the filter screen 2; the diameter of the cover 3 can be set to be the maximum, and the diameter of the cover 3 is equal to the difference between the diameter of the filter screen 2 and the diameter of the inner circle of the track 21.
In another technical solution, in the device for collecting the floating objects in the environmental sewage, the first driving mechanism is a cylinder 5, which is fixedly arranged at the top of the housing 1, and a piston rod of the cylinder 5 vertically penetrates through the top surface of the housing 1 downward and is fixedly connected with the upper surface of the pressing plate 41. The cylinder 5 drives the piston rod to extend and retract, so as to drive the pressing plate 41 to move back and forth in the vertical direction.
In another technical solution, the second driving mechanism is a motor 6, which is fixedly arranged at the top of the housing 1, and an output shaft of the motor 6 penetrates through the top surface of the housing 1 and is fixedly connected to the rotating shaft 44. The motor 6 drives the output shaft to rotate, and then drives the rotating shaft 44 to rotate around the axis of the rotating shaft.
In another technical scheme, the device for collecting the floating objects in the environmental sewage is characterized in that a pair of sliding grooves are symmetrically formed in the inner wall of the shell 1, any sliding groove extends in the vertical direction, two second sliding blocks are respectively arranged on two sides of the pressing plate 41, and each second sliding block is slidably clamped in one sliding groove. The connection of the pressure plate 41 to the housing 1 is realized so as to be movable up and down.
In another technical scheme, in the device for collecting the floating objects in the environmental sewage, any one of the second through holes 411 is circular and has a diameter of 1-3 cm. It is ensured that the sewage can move to above the pressing plate 41 through the second through hole 411, and the floating objects can not pass through the second through hole 411 and still remain between the pressing plate 41 and the filter screen 2.
In another technical scheme, in the device for collecting floating objects in environmental sewage, a mesh hole is arranged right below any one of the cones 42, and a sharp part at the lower end of the cone 42 can be vertically inserted downwards into the corresponding mesh hole. When the pressing plate 41 moves downwards, the lower end of the cone 42 can pierce the plastic bag filled with water, so that the water inside the plastic bag is discharged, the pressing plate 41 continues to move to the lower limit position, the lower end of the cone 42 penetrates through the corresponding mesh, the plastic bag adhered to the filter screen 2 and other floaters can be vertically pierced downwards, a water leakage hole penetrating through the floating object is formed at the position of the second through hole 411, the water leakage hole penetrating through the sewage up and down and the mesh are guaranteed to move to the lower part of the filter screen 2, and the sewage filtering speed is accelerated.
In another technical scheme, in the device for collecting the floating objects in the environmental sewage, the diameter ratio of the length of the scraper 43 to the filter screen 2 is 0.95:1, and the vertical height of the scraper 43 is 2 cm. The horizontal rotation of the scraper 43 is ensured to drive most of the floating objects on the filter screen 2 to move to the first through hole 22 and discharge the floating objects through the material guide pipe 13.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (8)
1. Collection device of floater in environmental sewage, its characterized in that, it includes:
the water inlet is arranged at the upper part of one side of the shell, the discharge port is arranged at the lower part of the other side of the shell, and the other side of the shell is provided with an openable/closable door body which can cover the discharge port; a water outlet is formed in the bottom of the shell;
the filter screen is horizontally and internally connected inside the shell and positioned below the water inlet, a circular track concentric with the filter screen is arranged on the upper surface of the filter screen, a first through hole is formed in one side, close to the discharge port, of the filter screen and communicated with the discharge port through a material guide pipe, and the first through hole and the track are not interfered with each other;
the cover body is horizontally positioned on the filter screen, a first sliding block is arranged on the lower surface of the cover body and is clamped in the track in a sliding mode, and the cover body can completely cover the first through hole;
broken bag mechanism, it includes:
the pressing plate is horizontally positioned in the shell and above the filter screen, and a plurality of second through holes penetrating up and down are uniformly arranged on the pressing plate at intervals; the circumferential side edge of the pressure plate is in contact with but not connected with the inner wall of the shell, the shell does not limit the upward and downward movement of the pressure plate, and the movement of the pressure plate in the vertical direction is driven by a first driving mechanism;
the cones are uniformly distributed between the pressing plate and the filter screen at intervals, any cone is vertically arranged, the upper end of each cone is fixedly connected with the lower surface of the pressing plate, and the lower end of each cone is provided with a sharp part; any cone body and any second through hole are not interfered with each other;
the scraper is in a strip shape and extends along the horizontal direction, the scraper is positioned on the filter screen, the midpoint of the scraper is positioned on the axis of the shell, the bottom of the scraper is in contact with the upper surface of the filter screen, and the filter screen does not limit the horizontal rotation of the scraper;
the rotating shaft is vertically arranged and is coaxial with the shell, the upper end of the rotating shaft is rotatably connected with the top surface of the shell, and the lower end of the rotating shaft vertically and downwards sequentially penetrates through the top surface of the shell and the pressing plate and is fixedly connected with the top of the scraper; the rotation of the rotating shaft is driven by a second driving mechanism, the rotation of the rotating shaft is not limited by the pressing plate, and the up-and-down movement of the pressing plate is not limited by the rotating shaft;
the connecting rod is positioned between the pressing plate and the filter screen, the connecting rod is of an inverted L-shaped structure, the free end of the horizontal part of the connecting rod is fixedly connected with the lower part of the rotating shaft, and the free end of the vertical part of the connecting rod is fixedly connected with the upper surface of the cover body; the length of the vertical part of the connecting rod is less than that of any awl; any awl and the connecting rod do not interfere with each other.
2. The apparatus according to claim 1, wherein the first through hole and the cover are circular, and the diameter ratio of the first through hole to the cover is 0.9: 1;
the distance from the circle center of the first through hole to the circle center of the filter screen is equal to the distance from the circle center of the cover body to the circle center of the filter screen.
3. The device for collecting floating objects in environmental sewage according to claim 2, wherein the first driving mechanism is a cylinder fixed on the top of the housing, and a piston rod of the cylinder vertically penetrates through the top surface of the housing and is fixedly connected with the upper surface of the pressing plate.
4. The apparatus according to claim 3, wherein the second driving mechanism is a motor fixed to the top of the housing, and an output shaft of the motor passes through the top surface of the housing and is fixedly connected to the rotating shaft.
5. The device for collecting floating objects in environmental sewage according to claim 4, wherein a pair of sliding grooves are symmetrically formed on the inner wall of the housing, any sliding groove extends in the vertical direction, and a second sliding block is respectively arranged on two sides of the pressing plate and is slidably clamped in one sliding groove.
6. The device for collecting floating objects in environmental sewage according to claim 5, wherein any one of the second through holes is circular and has a diameter of 1-3 cm.
7. The apparatus for collecting floating objects in environmental sewage according to claim 6, wherein a mesh is provided directly under each cone, and the sharp portion of the lower end of each cone is vertically inserted downward into the corresponding mesh.
8. The apparatus for collecting floating objects in environmental sewage according to claim 7, wherein the ratio of the length of said scraper to the diameter of said filter net is 0.95: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867600.2U CN210874289U (en) | 2019-10-31 | 2019-10-31 | Device for collecting floating objects in environmental sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867600.2U CN210874289U (en) | 2019-10-31 | 2019-10-31 | Device for collecting floating objects in environmental sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210874289U true CN210874289U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921867600.2U Expired - Fee Related CN210874289U (en) | 2019-10-31 | 2019-10-31 | Device for collecting floating objects in environmental sewage |
Country Status (1)
| Country | Link |
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| CN (1) | CN210874289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274784A (en) * | 2021-06-01 | 2021-08-20 | 童建忠 | Intelligent medical wastewater filter |
| CN113274791A (en) * | 2021-04-13 | 2021-08-20 | 梁文杰 | Pressure boost filtration equipment for building site |
| CN113559596A (en) * | 2021-07-10 | 2021-10-29 | 胡满 | Sewage filtering device |
-
2019
- 2019-10-31 CN CN201921867600.2U patent/CN210874289U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274791A (en) * | 2021-04-13 | 2021-08-20 | 梁文杰 | Pressure boost filtration equipment for building site |
| CN113274784A (en) * | 2021-06-01 | 2021-08-20 | 童建忠 | Intelligent medical wastewater filter |
| CN113274784B (en) * | 2021-06-01 | 2022-10-18 | 广州市朔康医疗科技有限公司 | Intelligent medical wastewater filter |
| CN113559596A (en) * | 2021-07-10 | 2021-10-29 | 胡满 | Sewage filtering device |
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Granted publication date: 20200630 Termination date: 20211031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |