CN215365146U - Water treatment wastewater recycling device - Google Patents
Water treatment wastewater recycling device Download PDFInfo
- Publication number
- CN215365146U CN215365146U CN202120565344.2U CN202120565344U CN215365146U CN 215365146 U CN215365146 U CN 215365146U CN 202120565344 U CN202120565344 U CN 202120565344U CN 215365146 U CN215365146 U CN 215365146U
- Authority
- CN
- China
- Prior art keywords
- device body
- fixedly connected
- rear side
- water
- water treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a water treatment wastewater recycling device, which belongs to the technical field of water treatment, and adopts the technical scheme that the device comprises a device body, wherein the top of the front side of the device body is fixedly communicated with a first water inlet pipe, the bottom of the rear side of the device body is fixedly communicated with a first water discharge pipe, the right side of the device body is provided with an observation window, the observation window is made of transparent materials, the front side of the top of the device body is movably connected with a cover plate, the top of the device body is fixedly connected with a fixed block, the top of the fixed block is fixedly connected with a fixing mechanism, and the rear side of the top of the cover plate is fixedly connected with a connecting mechanism, so that the problem that after a part of the existing wastewater recycling device in the market is used for a long time, the internal grating of the existing wastewater recycling device is blocked by impurities in the wastewater, the filtering effect on the wastewater is influenced, and the wastewater and a medicament cannot be well and fully fused is solved, thereby affecting the wastewater treatment effect.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a water treatment wastewater recycling device.
Background
The water treatment method comprises physical treatment and chemical treatment, the human water treatment method has been for many years, the physical method comprises utilizing various filter materials with different pore sizes, and utilizing adsorption or separation mode to remove impurities in water, the more important one in the adsorption mode is adsorption by active carbon, the separation method is to pass water through the filter materials, so that the impurities with larger volume can not pass, and then obtain cleaner water, in addition, the physical method also comprises a precipitation method, namely, the impurities with smaller specific gravity are floated on the water surface and fished out, or the impurities with larger specific gravity are precipitated under, and then obtained, the chemical method is to convert the impurities in water into substances with smaller harm to human body by utilizing various chemical drugs, or to concentrate the impurities, the chemical treatment method for the longest history can be calculated by adding alum into water and collecting the impurities in water, the volume becomes larger, and then impurities can be removed by filtration.
In the water treatment process, waste water recycling device can be used, and partial waste water recycling device on the existing market is used for a long time, the internal grating can be blocked by impurities in the waste water, the filtering effect on the waste water is influenced, the waste water and the medicament can not be well and fully fused, and the treatment effect on the waste water is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water treatment wastewater recycling device, and aims to solve the problems that after part of the existing wastewater recycling devices in the market are used for a long time, internal grids can be blocked by impurities in wastewater, the filtering effect on the wastewater is influenced, and the wastewater and a medicament cannot be well and fully fused, so that the wastewater treatment effect is influenced.
The utility model is realized in such a way, the water treatment wastewater recycling device comprises a device body, the top of the front side of the device body is fixedly communicated with a first water inlet pipe, the bottom of the rear side of the device body is fixedly communicated with a first water discharge pipe, the right side of the device body is provided with an observation window, the observation window is made of transparent materials, the front side of the top of the device body is movably connected with a cover plate, the top of the device body is fixedly connected with a fixed block, the top of the fixed block is fixedly connected with a fixing mechanism, the rear side of the top of the cover plate is fixedly connected with a connecting mechanism, the connecting mechanism is matched with the fixing mechanism for use, the interior of the device body is movably connected with a grid, the front side and the rear side of the top of the device body are both provided with a water pump, the front side of the water pump is fixedly communicated with a second water inlet pipe, and the rear side of the water pump is fixedly communicated with a second water discharge pipe, the bottom of second inlet tube and second drain pipe all extends to the inside of device body, the top of device body is provided with the motor, the output fixedly connected with stirring rake of motor, the bottom of stirring rake extends to the inside of device body, the fixed intercommunication in right side at device body top has the injection mouth, the top of device body inner wall rear side is provided with the activated carbon layer, the bottom of device body inner wall rear side is provided with the drainage membrane, the inner wall of device body is provided with the filter core.
In order to achieve the effect of fixing the cover plate by matching with the fixing mechanism, the water treatment wastewater recycling device preferably comprises a connecting mechanism and a fixing rod, wherein the bottom of the fixing rod is fixedly connected with the top of the cover plate, a movable sleeve is sleeved on the surface of the fixing rod, a connecting rod is fixedly connected to the rear side of the movable sleeve, and the top of the connecting rod is in contact with the bottom of the fixing mechanism.
In order to fix the cover plate on the top of the device body and prevent the cover plate from moving, the water treatment wastewater recycling device is preferably characterized in that the bottom of the screw is fixedly connected with the top of the fixed block, the surface of the screw is sleeved with a threaded sleeve, the front side and the rear side of the threaded sleeve are fixedly connected with a rotating handle, and the bottom of the rotating handle is in contact with the top of the connecting rod.
In order to achieve the effect that the connecting mechanism and the fixing mechanism can work in a matched manner, the water treatment wastewater recycling device is preferably characterized in that the top of the fixed rod is fixedly connected with a baffle plate matched with the movable sleeve for use, and the rear side of the right side of the connecting rod is provided with a movable groove matched with the screw rod for use.
In order to conveniently open or close the cover plate, the water treatment wastewater recycling device is preferably characterized in that the front side of the cover plate is fixedly connected with a hinge, the connecting part of the cover plate and the device body is movably connected through the hinge, and the rear side of the top of the cover plate is fixedly connected with a first handle.
In order to limit the grille in the device body, the water treatment wastewater recycling device is preferably characterized in that the top of the grille is fixedly connected with a second handle, the tops and the bottoms of two sides of the grille are fixedly connected with pulleys, two sides of the inner wall of the device body are respectively provided with a sliding chute matched with the pulleys for use, the bottom of the cover plate is fixedly connected with a clamping block matched with the grille for use, the inner wall of the clamping block is fixedly connected with a cushion pad, and the inner wall of the cushion pad is in contact with the surface of the grille.
In order to achieve the effect of conveniently filling the medicament, the water treatment wastewater recycling device is preferably characterized in that the bottom of the medicament injection nozzle is fixedly communicated with a medicament conveying pipe, the bottom of the medicament conveying pipe extends into the device body, and the bottom of the medicament conveying pipe is fixedly communicated with a medicament guide tube.
Compared with the prior art, the utility model has the beneficial effects that:
the water treatment wastewater recycling device can enable wastewater to enter the inside of the device body through the first water inlet pipe, can conveniently observe the condition inside the device body through the observation window, then primarily filters impurities in the wastewater through the grating, can enable the wastewater after primary filtering to be introduced into a second process through the second water outlet pipe by starting the water pump, fills a medicament into the inside of the device body through the medicament injection nozzle, then drives the stirring paddle to rotate through the motor, can enable the wastewater to be fully fused with the medicament, achieves the treatment of the wastewater, filters the wastewater again through the filter element, then passes through the water pump on the rear side of the top of the device body again, conveys the wastewater into a third process, treats the wastewater through the activated carbon layer and the water filtering membrane, finally discharges the wastewater through the first water outlet pipe, and completes the recycling work of the wastewater, through adjusting fixed establishment, can make fixed establishment remove the fixed to coupling mechanism, and then remove the fixed to the apron, then through opening the apron, take out the grid from the inside of device body, clear up it, can prevent that the grid from blockking up, the influence is to the filter effect of waste water.
Drawings
FIG. 1 is an overall configuration view of a water treatment wastewater recycling apparatus according to the present invention;
FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view taken at B of FIG. 1 in accordance with the present invention;
FIG. 4 is a block diagram of the grid of the present invention;
FIG. 5 is a front cross-sectional view of the device body of the present invention;
FIG. 6 is a cross-sectional view of the device body and grid of the present invention;
FIG. 7 is a side cross-sectional view of the body of the device of the present invention;
fig. 8 is a structural view of the medicine injection nozzle of the present invention.
In the figure, 1, an apparatus body; 2. a first water inlet pipe; 3. a first drain pipe; 4. an observation window; 5. a cover plate; 6. a fixed block; 7. a grid; 8. a water pump; 9. a second water inlet pipe; 10. a second drain pipe; 11. a motor; 12. a stirring paddle; 13. a medicine injection nozzle; 14. an activated carbon layer; 15. a water filtration membrane; 16. a filter element; 17. a baffle plate; 18. a movable groove; 19. a hinge; 20. a first handle; 21. a second handle; 22. a pulley; 23. a chute; 24. a clamping block; 25. a cushion pad; 26. a drug delivery tube; 27. a drug delivery cartridge; 28. a connecting mechanism; 2801. fixing the rod; 2802. a movable sleeve; 2803. a connecting rod; 29. a fixing mechanism; 2901. a screw; 2902. a threaded sleeve; 2903. and (4) turning the handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-8, the present invention provides a technical solution: the water treatment wastewater recycling device comprises a device body 1, a first water inlet pipe 2 is fixedly communicated with the top of the front side of the device body 1, a first drain pipe 3 is fixedly communicated with the bottom of the rear side of the device body 1, an observation window 4 is arranged on the right side of the device body 1, the observation window 4 is made of transparent materials, a cover plate 5 is movably connected with the front side of the top of the device body 1, a fixed block 6 is fixedly connected with the top of the device body 1, a fixed mechanism 29 is fixedly connected with the top of the fixed block 6, a connecting mechanism 28 is fixedly connected with the rear side of the top of the cover plate 5, the connecting mechanism 28 is matched with the fixed mechanism 29 for use, a grid 7 is movably connected with the inside of the device body 1, water pumps 8 are respectively arranged on the front side and the rear side of the top of the device body 1, a second water inlet pipe 9 is fixedly communicated with the front side of each water pump 8, and a second drain pipe 10 is fixedly communicated with the rear side of each water pump 8, the bottom of second inlet tube 9 and second drain pipe 10 all extends to the inside of device body 1, the top of device body 1 is provided with motor 11, motor 11's output fixedly connected with stirring rake 12, the bottom of stirring rake 12 extends to the inside of device body 1, the fixed intercommunication in right side at device body 1 top has injection mouth 13, the top of device body 1 inner wall rear side is provided with activated carbon layer 14, the bottom of device body 1 inner wall rear side is provided with drainage membrane 15, the inner wall of device body 1 is provided with filter core 16.
In this embodiment: through the first water inlet pipe 2, wastewater can enter the inside of the device body 1, the condition inside the device body 1 can be conveniently observed through the observation window 4, then impurities in the wastewater are primarily filtered through the grating 7, the wastewater after primary filtering is introduced into a second process through the second water outlet pipe 10 by starting the water pump 8, a medicament is filled into the device body 1 through the medicament injection nozzle 13, then the stirring paddle 12 is driven to rotate through the motor 11, the wastewater and the medicament can be fully fused to achieve the treatment of the wastewater, the wastewater is filtered again through the filter element 16, then the wastewater is conveyed into a third process through the water pump 8 on the rear side of the top of the device body 1, the wastewater is treated through the activated carbon layer 14 and the water filtering membrane 15, and finally the wastewater is discharged through the first water outlet pipe 3, the recovery work to waste water is accomplished, through adjusting fixed establishment 29, can make fixed establishment 29 remove the fixed to coupling mechanism 28, and then removes the fixed to apron 5, then through opening apron 5, takes out grid 7 from the inside of device body 1, clears up it, can prevent that grid 7 from blockking up, influences the filter effect to waste water.
As a technical optimization scheme of the present invention, the connection mechanism 28 includes a fixed rod 2801, the bottom of the fixed rod 2801 is fixedly connected to the top of the cover plate 5, a movable sleeve 2802 is sleeved on the surface of the fixed rod 2801, a connection rod 2803 is fixedly connected to the rear side of the movable sleeve 2802, and the top of the connection rod 2803 is in contact with the bottom of the fixing mechanism 29.
In this embodiment: through with dead lever 2801 fixed mounting at the top of apron 5, then rotate on the surface of dead lever 2801 through movable sleeve 2802, can make movable sleeve 2802 drive connecting rod 2803 and remove, can make connecting rod 2803 remove to the position that fixed establishment 29 can carry out the fixing to connecting rod 2803, and then reach fixed establishment 29 and fix apron 5.
As a technical optimization scheme of the present invention, the bottom of the screw 2901 is fixedly connected with the top of the fixed block 6, the screw 2902 is sleeved on the surface of the screw 2901, the rotating handle 2903 is fixedly connected to both the front side and the rear side of the screw 2902, and the bottom of the rotating handle 2903 is in contact with the top of the connecting rod 2803.
In this embodiment: by rotating the rotating handle 2903, the rotating handle 2903 drives the screw sleeve 2902 to descend on the surface of the screw 2901 until the bottom of the rotating handle 2903 is in close contact with the top of the connecting rod 2803, so that the connecting rod 2803 is fixed, and the fixing effect on the cover plate 5 is further achieved.
As a technical optimization scheme of the present invention, a baffle 17 used in cooperation with the movable sleeve 2802 is fixedly connected to the top of the fixed rod 2801, and a movable groove 18 used in cooperation with the screw 2901 is opened on the rear side of the right side of the connecting rod 2803.
In this embodiment: the baffle 17 is fixedly mounted on the surface of the fixed rod 2801, so that the movable sleeve 2802 is prevented from being separated from the fixed rod 2801 when rotating, the connection effect of the connecting rod 2803 is prevented from being affected, and then the movable groove 18 is formed in the rear side of the right side of the connecting rod 2803, so that the connecting rod 2803 can be conveniently fixed by the rotating handle 2903.
As a technical optimization scheme of the utility model, a hinge 19 is fixedly connected to the front side of the cover plate 5, the connecting part of the cover plate 5 and the device body 1 is movably connected through the hinge 19, and a first handle 20 is fixedly connected to the rear side of the top of the cover plate 5.
In this embodiment: the cover 5 is connected to the apparatus body 1 by a hinge 19, and by the action of a first handle 20, the effect of facilitating the opening or closing of the cover 5 can be achieved.
As a technical optimization scheme of the utility model, the top of the grating 7 is fixedly connected with a second handle 21, the tops and the bottoms of the two sides of the grating 7 are fixedly connected with pulleys 22, the two sides of the inner wall of the device body 1 are respectively provided with a sliding chute 23 matched with the pulleys 22 for use, the bottom of the cover plate 5 is fixedly connected with a clamping block 24 matched with the grating 7 for use, the inner wall of the clamping block 24 is fixedly connected with a cushion pad 25, and the inner wall of the cushion pad 25 is in contact with the surface of the grating 7.
In this embodiment: through putting into the pulley 22 of grid 7 both sides in the spout 23 of device body 1 inner wall both sides, then through second handle 21, move grid 7 into the inner wall of device body 1, later through the inside blotter 25 and the contact of grid 7 of fixture block 24, can restrict grid 7 in the inside of device body 1, through blotter 25, can reach the effect to grid 7 buffering.
As a technical optimization scheme of the utility model, the bottom of the medicine injection nozzle 13 is fixedly communicated with a medicine conveying pipe 26, the bottom of the medicine conveying pipe 26 extends into the device body 1, and the bottom of the medicine conveying pipe 26 is fixedly communicated with a medicine guide box 27.
In this embodiment: the medication is introduced into the interior of the device body 1 from the medication guide tube 27 by filling the medication into the medication nozzle 13 and then into the medication guide tube 27 through the medication delivery tube 26.
The working principle is as follows: firstly, wastewater can enter the inside of the device body 1 through the first water inlet pipe 2, the condition inside the device body 1 can be conveniently observed through the observation window 4, then impurities in the wastewater are primarily filtered through the grating 7, the wastewater after primary filtering is introduced into a second procedure through the second water outlet pipe 10 by starting the water pump 8, a medicament is filled into the device body 1 through the medicament injection nozzle 13, then the stirring paddle 12 is driven to rotate through the motor 11, the wastewater and the medicament can be fully fused to achieve the treatment of the wastewater, the wastewater is filtered again through the filter element 16, then the wastewater is conveyed into a third procedure through the water pump 8 on the rear side of the top of the device body 1 again, the wastewater is treated through the activated carbon layer 14 and the water filtering membrane 15, and finally the wastewater is discharged through the first water outlet pipe 3, after the waste water is recovered, the rotating handle 2903 is rotated, the rotating handle 2903 drives the screw sleeve 2902 to ascend on the surface of the screw 2901 until the rotating handle 2903 releases the fixing of the connecting rod 2803, then the movable sleeve 2802 drives the connecting rod 2803 to rotate on the surface of the fixed rod 2801, the connecting rod 2803 is separated from the position of the screw 2901, then the cover plate 5 is opened through the first handle 20, the clamping block 24 is separated from the top of the grating 7, then the grating 7 can be moved out of the interior of the device body 1 through the pulley 22 by pulling up the second handle 21, and then the grating 7 can be cleaned.
Claims (7)
1. Water treatment waste water recycle device, including device body (1), its characterized in that: the device is characterized in that a first water inlet pipe (2) is fixedly communicated with the top of the front side of the device body (1), a first water drainage pipe (3) is fixedly communicated with the bottom of the rear side of the device body (1), an observation window (4) is arranged on the right side of the device body (1), the observation window (4) is made of transparent materials, a cover plate (5) is movably connected with the front side of the top of the device body (1), a fixed block (6) is fixedly connected with the top of the device body (1), a fixed mechanism (29) is fixedly connected with the top of the fixed block (6), a connecting mechanism (28) is fixedly connected with the rear side of the top of the cover plate (5), the connecting mechanism (28) is matched with the fixed mechanism (29) for use, a grating (7) is movably connected with the inside of the device body (1), and water pumps (8) are arranged on the front side and the rear side of the top of the device body (1), the fixed intercommunication in front side of water pump (8) has second inlet tube (9), the fixed intercommunication in rear side of water pump (8) has second drain pipe (10), the inside of second inlet tube (9) and second drain pipe (10) all extend to device body (1), the top of device body (1) is provided with motor (11), the output fixedly connected with stirring rake (12) of motor (11), the bottom of stirring rake (12) extends to the inside of device body (1), the fixed intercommunication in right side at device body (1) top has injection mouth (13), the top of device body (1) inner wall rear side is provided with activated carbon layer (14), the bottom of device body (1) inner wall rear side is provided with drainage membrane (15), the inner wall of device body (1) is provided with filter core (16).
2. The water treatment wastewater recycling device according to claim 1, characterized in that: the connecting mechanism (28) comprises a fixing rod (2801), the bottom of the fixing rod (2801) is fixedly connected with the top of the cover plate (5), a movable sleeve (2802) is sleeved on the surface of the fixing rod (2801), a connecting rod (2803) is fixedly connected to the rear side of the movable sleeve (2802), and the top of the connecting rod (2803) is in contact with the bottom of the fixing mechanism (29).
3. The water treatment wastewater recycling device according to claim 2, characterized in that: the fixing mechanism (29) comprises a screw rod (2901), the bottom of the screw rod (2901) is fixedly connected with the top of the fixing block (6), a threaded sleeve (2902) is sleeved on the surface of the screw rod (2901), rotating handles (2903) are fixedly connected to the front side and the rear side of the threaded sleeve (2902), and the bottom of each rotating handle (2903) is in contact with the top of the connecting rod (2803).
4. The water treatment wastewater recycling device according to claim 3, characterized in that: the top of the fixed rod (2801) is fixedly connected with a baffle (17) used in cooperation with the movable sleeve (2802), and the rear side of the right side of the connecting rod (2803) is provided with a movable groove (18) used in cooperation with the screw (2901).
5. The water treatment wastewater recycling device according to claim 1, characterized in that: the front side of the cover plate (5) is fixedly connected with a hinge (19), the joint of the cover plate (5) and the device body (1) is movably connected with the hinge (19), and the rear side of the top of the cover plate (5) is fixedly connected with a first handle (20).
6. The water treatment wastewater recycling device according to claim 1, characterized in that: the top fixedly connected with second handle (21) of grid (7), the top and the equal fixedly connected with pulley (22) in bottom of grid (7) both sides, spout (23) that use with pulley (22) cooperation are all seted up to the both sides of device body (1) inner wall, the bottom fixedly connected with of apron (5) cooperates fixture block (24) of using with grid (7), the inner wall fixedly connected with blotter (25) of fixture block (24), the inner wall of blotter (25) and the surface contact of grid (7).
7. The water treatment wastewater recycling device according to claim 1, characterized in that: the bottom of the medicine injection nozzle (13) is fixedly communicated with a medicine conveying pipe (26), the bottom of the medicine conveying pipe (26) extends to the inside of the device body (1), and the bottom of the medicine conveying pipe (26) is fixedly communicated with a medicine guide barrel (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120565344.2U CN215365146U (en) | 2021-03-19 | 2021-03-19 | Water treatment wastewater recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120565344.2U CN215365146U (en) | 2021-03-19 | 2021-03-19 | Water treatment wastewater recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215365146U true CN215365146U (en) | 2021-12-31 |
Family
ID=79624758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120565344.2U Active CN215365146U (en) | 2021-03-19 | 2021-03-19 | Water treatment wastewater recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215365146U (en) |
-
2021
- 2021-03-19 CN CN202120565344.2U patent/CN215365146U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110745991B (en) | Quantitative dosing assembly convenient-to-detach sewage treatment device | |
| CN110235848A (en) | A kind of fish jar purification device and its application method | |
| CN109603292B (en) | A high-efficient sedimentation tank for plant waste water treatment | |
| CN215365146U (en) | Water treatment wastewater recycling device | |
| CN207645988U (en) | A kind of efficient Chinese medicine processing sewage treating and recovering device | |
| CN213012385U (en) | Multistage sewage treatment device | |
| CN215427756U (en) | Chemical industry environmental protection effluent treatment plant | |
| CN213112814U (en) | High-efficient centrifugal sewage treatment plant | |
| CN115317977A (en) | Municipal administration sewage cycle processing apparatus | |
| CN210874252U (en) | Sewage treatment plant's sludge treatment device | |
| CN211585347U (en) | Easy-to-clean inclined tube settling chamber for high-level water treatment device | |
| CN208532500U (en) | A kind of Water treatment sterilizing device | |
| CN209464721U (en) | Integrated sewage treating apparatus | |
| CN112661296A (en) | A processing apparatus for food and beverage sewage | |
| CN112680356A (en) | Stem cell directional differentiation device for cell culture and use method thereof | |
| CN215250169U (en) | Integrated drinking water purification equipment | |
| CN110734161A (en) | - -body sewage treatment equipment | |
| CN214994210U (en) | River course desilting equipment is used in hydraulic engineering construction | |
| CN218221162U (en) | A carry system extraction equipment for chinese-medicinal material | |
| CN219290856U (en) | Solid-liquid separation device | |
| CN215462637U (en) | Sewage treatment plant for environmental engineering | |
| CN218134000U (en) | Waste treatment device | |
| CN215876369U (en) | Abamectin fermentation broth filtering device | |
| CN217265142U (en) | Underground water filtering device | |
| CN213803294U (en) | Domestic sewage pretreatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |