CN217838592U - Sewage treatment equipment with quick cleaning function - Google Patents

Sewage treatment equipment with quick cleaning function Download PDF

Info

Publication number
CN217838592U
CN217838592U CN202222239095.5U CN202222239095U CN217838592U CN 217838592 U CN217838592 U CN 217838592U CN 202222239095 U CN202222239095 U CN 202222239095U CN 217838592 U CN217838592 U CN 217838592U
Authority
CN
China
Prior art keywords
sewage treatment
water pump
tank
wall
treatment machine
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
Application number
CN202222239095.5U
Other languages
Chinese (zh)
Inventor
郑炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangtze Delta Region Institute of Tsinghua University Zhejiang
Original Assignee
Yangtze Delta Region Institute of Tsinghua University Zhejiang
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yangtze Delta Region Institute of Tsinghua University Zhejiang filed Critical Yangtze Delta Region Institute of Tsinghua University Zhejiang
Priority to CN202222239095.5U priority Critical patent/CN217838592U/en
Application granted granted Critical
Publication of CN217838592U publication Critical patent/CN217838592U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Treatment Of Biological Wastes In General (AREA)

Abstract

The utility model discloses a sewage treatment device with quick clean function, including sewage treatment machine, water tank, fixed plate and sedimentation tank, the water tank is installed at sewage treatment machine's top, the disinfect box is installed at sewage treatment machine's top, and the disinfect box installs with the water tank relatively, the second motor is installed at sewage treatment machine's top, and the second motor is located one side of disinfect box. The utility model discloses an install water tank and auger shaft and can carry out automatic washing to the sedimentation tank, first water pump starts, the first pipeline of rivers through the installation of first water pump output end flows first watering end, spout through first watering end, wash the adsorbed impurity of sedimentation tank inner wall, automatic telescopic link contracts the action, the impurity of sedimentation tank will flow the inner wall of auger shaft, first motor starts to drive auger shaft and rotates, auger shaft rotates and passes through the outer wall that the sewage treatment machine was carried to the impurity of its inner wall of flowing through the mud delivery outlet, the completion is to the washing of sedimentation tank.

Description

Sewage treatment equipment with quick cleaning function
Technical Field
The utility model discloses sewage treatment device technical field specifically is a sewage treatment device with quick clean function.
Background
Sewage treatment device, be one kind can effective treatment urban area's domestic sewage, industrial equipment of industrial waste water etc., avoid sewage and pollutant direct inflow waters, to improving ecological environment, promote city grade and promote economic development and have important meaning, current sewage treatment device has been very perfect in the aspect of handling sewage, but still can't carry out effectual cleanness to remaining impurity in the sewage treatment device after the clearance is accomplished, consequently need develop one kind and have the structure of automatic clearance sewage treatment device internal impurity, thereby make sewage treatment device's use convenient and fast more.
The existing sewage treatment equipment has the defects that:
patent document CN215876486U discloses sewage treatment device, right item "including the box of protection, fixed mounting has the baffle in the box, and one side of baffle is equipped with the filter chamber, and the collection frame has been placed to the bottom of box, has seted up the intercommunicating pore on the baffle, and fixed mounting has first horizontal pole on the both sides inner wall of filter chamber, sets up the rectangular hole that two symmetries set up on the first horizontal pole, and slidable mounting has the rectangular pole in the rectangular hole, the same second horizontal pole of the top fixed mounting of two rectangular poles, and the bottom fixed mounting of two rectangular poles has same filter screen, and the filter screen runs through the intercommunicating pore. The utility model relates to a rationally, can make the filter screen shake from top to bottom to make solid impurity get into through the intercommunicating pore and collect the frame and collect, thereby can prevent the jam of filter screen.
However, the sewage treatment apparatus of the above publication mainly considers the prevention of clogging of the filter net and does not consider the problem of how to automatically clean the precipitated impurities.
Therefore, there is a need to develop a structure capable of automatically cleaning impurities in a sedimentation tank, so as to make the use of sewage treatment equipment more convenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sewage treatment device with quick clean function to solve the problem of the inside impurity of the automatic clearance sedimentation tank that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a sewage treatment device with a quick cleaning function comprises a sewage treatment machine, a water tank, a fixing plate and a sedimentation tank, wherein the water tank is installed at the top of the sewage treatment machine, a disinfection box is installed at the top of the sewage treatment machine, the disinfection box and the water tank are installed oppositely, a second motor is installed at the top of the sewage treatment machine, and the second motor is located on one side of the disinfection box;
the inner bottom wall of the water tank is provided with a first water pump, the output end of the first water pump is embedded with a first pipeline, one end of the first pipeline, which is far away from the first water pump, is connected with two groups of first sprinkling ends, and the first sprinkling ends are positioned on the inner wall of the sedimentation tank;
the fixed plate is installed to the inner wall of sedimentation tank, the oxygen pond is installed to the inner wall of sewage treatment machine, the disinfection pond is installed to the inner wall of sewage treatment machine.
Preferably, the front surface of the sewage treatment machine is provided with a water inlet in a penetrating way, and the back surface of the sewage treatment machine is provided with a water outlet.
Preferably, the outer wall of fixed plate installs automatic telescopic link, and the output of automatic telescopic link is connected with the baffle, and first motor is installed to the interior diapire of sedimentation tank, and the output of first motor is connected with the auger shaft, and the front of sewage treatment machine runs through and installs the mud delivery outlet.
Preferably, the output end of the second motor is provided with a first gear, the top of the disinfection tank is provided with a stirring shaft in a penetrating manner, one end of the stirring shaft is provided with a second gear, the first gear is meshed with the second gear, and the outer wall of the stirring shaft is provided with a plurality of groups of rotating blades.
Preferably, a second water pump is installed on the inner bottom wall of the disinfection box, a second pipeline is installed at the output end of the second water pump, a second sprinkling end is installed at one end, far away from the second water pump, of the second pipeline, and the second sprinkling end is located on the inner wall of the aerobic tank.
Preferably, the inner bottom wall of the aerobic tank is provided with a water pump and a third water pump respectively, and the water pump and the third water pump are arranged at one end of the aerobic tank respectively.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an install water tank and auger shaft and can carry out automatic washing to the sedimentation tank, when sewage treatment machine stop work, only need to start first water pump, automatic telescopic link and first motor, the first water pump of diapire installation in the water tank starts, rivers flow to first watering end through the first pipeline of first water pump output end installation, spout through first watering end, be used for wasing the impurity that the sedimentation tank inner wall adsorbs, automatic telescopic link contracts the action, the impurity of sedimentation tank will flow to the inner wall of auger shaft, first motor starts to drive the auger shaft rotation that the output is connected, auger shaft rotation will flow to the impurity of its inner wall to the outer wall of sewage treatment machine through the mud delivery outlet, thereby accomplish the washing to the sedimentation tank;
2. the utility model discloses an it can the disinfection work of sewage quick sterile effect more also better to install disinfect box and stirring axle, the sewage treatment machine starts to drive second motor and second water pump start, the second water pump starts, the second pipeline of installing is carried through second water pump and its output with the antiseptic solution in the disinfect box to the second watering end, spray the inside in disinfection pond from the second watering end at last, the second motor starts to drive the first gear rotation that its output was installed, first gear rotation drives rather than the second gear rotation that meshes mutually, the second gear rotation drives stirring axle and the rotation leaf rotation of its outer wall installation, can stir the water in the disinfection pond like this, antiseptic solution and the sterilizer that cooperation second watering end was sprayed can carry out more quick cleanness to the sewage that flows into the disinfection pond, and sterile effect is also better.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the structure of the auger shaft of the present invention;
fig. 4 is a schematic diagram of a second motor and gear structure according to the present invention.
In the figure: 1. a sewage treatment machine; 101. a sedimentation tank; 102. a water inlet; 103. a water outlet; 2. a fixing plate; 201. automatically telescoping the rod; 202. a baffle plate; 203. a first motor; 204. a packing auger shaft; 205. a sludge outlet; 3. a water tank; 301. a first water pump; 302. a first conduit; 303. a first watering end; 4. a second motor; 401. a first gear; 402. a second gear; 403. a stirring shaft; 404. rotating the blades; 5. a sterilizing box; 501. a second water pump; 502. a second conduit; 503. a second watering end; 6. an aerobic tank; 601. a water pump; 602. a third water pump; 7. a disinfection tank; 701. a sterilizer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1 and 2, a sewage treatment apparatus with a rapid cleaning function includes a sewage treatment machine 1, a water tank 3, a fixing plate 2 and a sedimentation tank 101, the water tank 3 is installed on the top of the sewage treatment machine 1, a disinfection tank 5 is installed on the top of the sewage treatment machine 1, the disinfection tank 5 and the water tank 3 are installed opposite to each other, a second motor 4 is installed on the top of the sewage treatment machine 1, the second motor 4 is located on one side of the disinfection tank 5, the fixing plate 2 is installed on the inner wall of the sedimentation tank 101, an oxygen tank 6 is installed on the inner wall of the sewage treatment machine 1, a disinfection tank 7 is installed on the inner wall of the sewage treatment machine 1, a water inlet 102 is installed on the front of the sewage treatment machine 1 in a penetrating manner, a water outlet 103 is installed on the back of the sewage treatment machine 1, a water pump 601 and a third water pump 602 are installed on the inner bottom wall of the oxygen tank 6, the water pump 601 and the third water pump 602 are installed on one end of the oxygen tank 6, a disinfector 701 is installed on the inner bottom wall of the disinfection tank 7, the sewage treatment machine 1 is composed of a sedimentation tank 101, an aerobic tank 6 and a disinfection tank 7, sewage enters from a water inlet 102 installed in the front of the sewage treatment machine 1 in a penetrating mode, the sewage can enter the sedimentation tank 101 to be precipitated after flowing in, so that most of impurities in the sewage are filtered, a water pump 601 installed on the bottom wall of the aerobic tank 6 sucks the precipitated sewage into the aerobic tank 6 through a water pipe, a filter screen is installed at the input end of the water pipe to ensure that the impurities in the sedimentation tank 101 cannot enter the aerobic tank 6, the aerobic tank 6 is used for decomposing toxic substances in the sewage by using microorganisms, a third water pump 602 conveys the decomposed sewage into the disinfection tank 7 through the water pipe, a filter end is installed at the input end of the third water pump 602 to further filter the impurities in the water, and finally, the microorganisms in the sewage are killed by a sterilizer 701 installed on the bottom wall of the disinfection tank 7 to change the sewage into normal water, the filtered clean water flows out from a water outlet 103 arranged on the back of the sewage processor 1.
Referring to fig. 2 and 3, a first water pump 301 is installed on the inner bottom wall of a water tank 3, a first pipeline 302 is installed at the output end of the first water pump 301 in an embedded manner, one end of the first pipeline 302, which is far away from the first water pump 301, is connected with two sets of first sprinkling ends 303, the first sprinkling ends 303 are located on the inner wall of a sedimentation tank 101, an automatic telescopic rod 201 is installed on the outer wall of a fixing plate 2, the output end of the automatic telescopic rod 201 is connected with a baffle 202, a first motor 203 is installed on the inner bottom wall of the sedimentation tank 101, the output end of the first motor 203 is connected with an auger shaft 204, a sludge output port 205 is installed on the front side of a sewage processor 1 in a penetrating manner, when the sewage processor 1 stops working, only the first water pump 301, the automatic telescopic rod 201 and the first motor 203 are started, the first water pump 301 installed on the inner bottom wall of the water tank 3 is started, water flows to the first sprinkling ends 303 through the first pipeline 302 installed on the output end of the first water pump 301, and is sprayed out from the first sprinkling ends 303 to clean impurities on the inner wall of the sedimentation tank 101, and the auger shaft 204 is connected to the sludge output port 205 of the sludge processor, thereby completing the rotation of the sludge processor, and the sludge processor, the sludge output port 205.
Referring to fig. 2 and 4, a first gear 401 is installed at an output end of a second motor 4, a stirring shaft 403 is installed at the top of a disinfection tank 7 in a penetrating manner, a second gear 402 is installed at one end of the stirring shaft 403, the first gear 401 is meshed with the second gear 402, a plurality of groups of rotating blades 404 are installed on the outer wall of the stirring shaft 403, a second water pump 501 is installed on the inner bottom wall of the disinfection tank 5, a second pipeline 502 is installed at an output end of the second water pump 501, a second sprinkling end 503 is installed at one end of the second pipeline 502 far away from the second water pump 501, the second sprinkling end 503 is located on the inner wall of the aerobic tank 6, the sewage treatment machine 1 is started to drive the second motor 4 and the second water pump 501 to be started, the second water pump is started to deliver disinfectant in the disinfection tank 5 to the second sprinkling end 503 through the second water pump 501 and the second pipeline 502 installed on the output end of the second water pump, and finally sprinkle the disinfectant from the second sprinkling end 503 into the disinfection tank 7, the second motor 4 is started to drive the first gear 401 to rotate, the first gear 401 is meshed with the second gear 401, the disinfecting tank, the disinfecting blades 701 can more rapidly spray the disinfectant, and the disinfectant into the disinfection tank 7, and the disinfecting tank can more rapidly clean the disinfecting tank with the disinfecting effect of which the disinfecting tank which is installed by the disinfecting machine 701.
The working principle, the sewage processor 1 is composed of a sedimentation tank 101, an aerobic tank 6 and a disinfection tank 7, sewage enters from a water inlet 102 installed in the front of the sewage processor 1 in a penetrating way, the sewage can enter the sedimentation tank 101 after flowing into the sedimentation tank to precipitate, so that most of impurities in the sewage are filtered, a water pump 601 installed on the inner bottom wall of the aerobic tank 6 sucks the precipitated sewage into the aerobic tank 6 through a water pipe, a filter screen is installed at the input end of the water pipe to ensure that the impurities in the sedimentation tank 101 can not enter the aerobic tank 6, the aerobic tank 6 is used for decomposing toxic substances in the sewage by using microorganisms, a third water pump 602 conveys the decomposed sewage into the disinfection tank 7 through the water pipe, a filter end is installed at the input end of the third water pump 602 to further filter the impurities in the water, and finally, the microorganisms in the sewage are killed by a disinfector 701 installed on the inner bottom wall of the disinfection tank 7 to enable the sewage to become normal water, the filtered clean water flows out from the water outlet 103 arranged on the back of the sewage processor 1, when the sewage processor 1 stops working, only the first water pump 301, the automatic telescopic rod 201 and the first motor 203 need to be started, the first water pump 301 arranged on the inner wall of the water tank 3 is started, water flows to the first sprinkling end 303 through the first pipeline 302 arranged on the output end of the first water pump 301, and then is sprayed out through the first sprinkling end 303 to clean impurities adsorbed on the inner wall of the sedimentation tank 101, the automatic telescopic rod 201 contracts, the impurities in the sedimentation tank 101 flow to the inner wall of the auger shaft 204, the first motor 203 is started to drive the auger shaft 204 connected with the output end to rotate, the auger shaft 204 rotates to convey the impurities flowing to the inner wall to the outer wall of the sewage processor 1 through the sludge output port 205, thereby completing the cleaning of the sedimentation tank 101, the sewage processor 1 is started to drive the second motor 4 and the second water pump 501 to start, the second water pump 501 starts, the disinfectant in the disinfection box 5 is conveyed to the second sprinkling end 503 through the second water pump 501 and the second pipeline 502 arranged on the output end of the second water pump 501, and finally the disinfectant is sprayed to the inside of the disinfection tank 7 from the second sprinkling end 503, the second motor 4 starts to drive the first gear 401 arranged on the output end of the second motor to rotate, the first gear 401 rotates to drive the second gear 402 engaged with the first gear to rotate, the second gear 402 rotates to drive the stirring shaft 403 and the rotating blade 404 arranged on the outer wall of the second gear to rotate, thus the water in the disinfection tank 7 can be stirred, the disinfectant sprayed by the second sprinkling end 503 and the disinfector 701 can be used for cleaning the sewage flowing into the disinfection tank 7 more quickly, and the disinfection effect is better.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a sewage treatment device with quick clean function, includes sewage treatment machine (1), water tank (3), fixed plate (2) and sedimentation tank (101), its characterized in that: the water tank (3) is installed at the top of the sewage treatment machine (1), the disinfection box (5) and the water tank (3) are installed oppositely, the second motor (4) is installed at the top of the sewage treatment machine (1), and the second motor (4) is located on one side of the disinfection box (5);
a first water pump (301) is installed on the inner bottom wall of the water tank (3), a first pipeline (302) is installed at the output end of the first water pump (301) in an embedded mode, two groups of first sprinkling ends (303) are connected to one end, far away from the first water pump (301), of the first pipeline (302), and the first sprinkling ends (303) are located on the inner wall of the sedimentation tank (101);
fixed plate (2) are installed to the inner wall of sedimentation tank (101), oxygen pond (6) are installed to the inner wall of sewage treatment machine (1), disinfection pond (7) are installed to the inner wall of sewage treatment machine (1).
2. The sewage treatment apparatus having a rapid cleaning function according to claim 1, wherein: the front surface of the sewage treatment machine (1) is provided with a water inlet (102) in a penetrating way, and the back surface of the sewage treatment machine (1) is provided with a water outlet (103).
3. The sewage treatment apparatus having a rapid cleaning function according to claim 1, wherein: automatic telescopic link (201) are installed to the outer wall of fixed plate (2), and the output of automatic telescopic link (201) is connected with baffle (202), and first motor (203) are installed to the inner diapire of sedimentation tank (101), and the output of first motor (203) is connected with auger shaft (204), and the front of sewage treatment machine (1) is run through and is installed mud delivery outlet (205).
4. The sewage treatment apparatus having a rapid cleaning function according to claim 1, wherein: first gear (401) is installed to the output of second motor (4), and stirring shaft (403) is installed in the top run-through of disinfection pond (7), and second gear (402) are installed to the one end of stirring shaft (403), and first gear (401) and second gear (402) mesh mutually, and multiunit rotating vane (404) are installed to the outer wall of stirring shaft (403).
5. The sewage treatment apparatus having a rapid cleaning function according to claim 1, wherein: second water pump (501) is installed to the interior diapire of disinfect box (5), and second pipeline (502) are installed to the output of second water pump (501), and second watering end (503) are installed to the one end that second water pump (501) were kept away from in second pipeline (502), and second watering end (503) are located the inner wall of aerobic tank (6).
6. The sewage treatment apparatus having a rapid cleaning function according to claim 1, wherein: the inner bottom wall of the aerobic tank (6) is respectively provided with a water pump (601) and a third water pump (602), and the water pump (601) and the third water pump (602) are respectively arranged at one end of the aerobic tank (6).
7. The sewage treatment apparatus having a rapid cleaning function according to claim 1, wherein: the inner bottom wall of the disinfection tank (7) is provided with a disinfector (701).
CN202222239095.5U 2022-08-25 2022-08-25 Sewage treatment equipment with quick cleaning function Active CN217838592U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222239095.5U CN217838592U (en) 2022-08-25 2022-08-25 Sewage treatment equipment with quick cleaning function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222239095.5U CN217838592U (en) 2022-08-25 2022-08-25 Sewage treatment equipment with quick cleaning function

Publications (1)

Publication Number Publication Date
CN217838592U true CN217838592U (en) 2022-11-18

Family

ID=84016272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222239095.5U Active CN217838592U (en) 2022-08-25 2022-08-25 Sewage treatment equipment with quick cleaning function

Country Status (1)

Country Link
CN (1) CN217838592U (en)

Similar Documents

Publication Publication Date Title
CN210457778U (en) Sewage treatment device capable of reducing odor emission
CN212894264U (en) Small-size effluent treatment plant convenient to remove
CN114409151A (en) Sponge urban water pollution ecological restoration equipment and use method thereof
CN211226696U (en) Bury formula integration sewage treatment device
CN211497264U (en) Purification tank for sewage treatment
CN213623569U (en) Efficient integration waste water treatment equipment
CN213266006U (en) Multistage wastewater treatment device
CN217838592U (en) Sewage treatment equipment with quick cleaning function
CN111760347A (en) Medical treatment is with medical effluent treatment plant
CN216997944U (en) Rural environmental protection land used buries formula sewage treatment plant
CN215516966U (en) High-safety hospital wastewater purification and disinfection device
CN213865671U (en) Building engineering effluent treatment plant
CN215559624U (en) Multistage filtering device for advanced treatment of dispersed sewage and wastewater
CN109534536A (en) A kind of decontamination mechanism for sewage-treatment plant
CN211664882U (en) Rural wastewater treatment system
CN211770748U (en) Sewage treatment environment-friendly device
CN220182819U (en) Assembled medical sewage treatment device
CN206901949U (en) A kind of quality purifying device for water for aquaculture
CN215161849U (en) Full-automatic MBR integration equipment of hospital's sewage treatment
CN221545794U (en) Building rainwater collection and recycling structure
CN220723621U (en) Agricultural water pollution treatment device
CN109179757A (en) A kind of sewage treatment deodorization circulation filter
CN215250152U (en) Micro-power integrated treatment device for sewage treatment
CN212102452U (en) Water treatment waste residue collection device
CN220812000U (en) Sewage tank sewage internal circulation mechanism

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant