CN212680292U - Filtration equipment for hydraulic engineering - Google Patents
Filtration equipment for hydraulic engineering Download PDFInfo
- Publication number
- CN212680292U CN212680292U CN202020881334.5U CN202020881334U CN212680292U CN 212680292 U CN212680292 U CN 212680292U CN 202020881334 U CN202020881334 U CN 202020881334U CN 212680292 U CN212680292 U CN 212680292U
- Authority
- CN
- China
- Prior art keywords
- detachably arranged
- filter
- sewage
- hydraulic engineering
- motor
- 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.)
- Expired - Fee Related
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 239000010865 sewage Substances 0.000 abstract description 44
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000010405 clearance mechanism Effects 0.000 description 4
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a filtration equipment for hydraulic engineering, include: a filtering mechanism; the two support rods are respectively and rotatably connected to the left end and the right end of the middle part of the rear side of the filtering mechanism through pin shafts; the two blocking mechanisms are respectively detachably arranged at the left end and the right end of the front side of the filtering mechanism; the cleaning mechanism is detachably arranged at the top of the rear side of the filtering mechanism; the filter residue box is detachably arranged on the rear side of the filtering mechanism and is positioned right below the cleaning mechanism; and the box door is hinged to the right side wall of the filter residue box. This filtration equipment for hydraulic engineering has sewage and blocks the effect, and stability is strong, and installation labour saving and time saving ensures that sewage flows through from metal conveyor belt, in addition, has the function of clearing up the metal conveyor belt surface, avoids some impurity to drop from the opposite side and flows away along with sewage, and the filter effect is strong, very big satisfied the filterable demand of sewage.
Description
Technical Field
The utility model relates to a hydraulic engineering technical field specifically is a filtration equipment for hydraulic engineering.
Background
Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Also known as water engineering. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Sewage treatment is a part of hydraulic engineering and is a process for purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people;
in sewage treatment, the most important is sewage filtration to get rid of impurity such as the suspended solid in aquatic, guarantee the purity of water, adopt the grid de-dirt machine to carry out the filtration of sewage usually. Although the scrubbing technique of grid sewage removing machine is very mature, however, the size of grid sewage removing machine is fixed, and the width of river course is uncertain, when laying grid sewage removing machine, need block the clearance between grid sewage removing machine and the river course with the help of materials such as timber, ensure that sewage can both carry out the scrubbing through grid sewage removing machine, above-mentioned mode has the effect of blockking, but stability is relatively poor, waste time and energy, in addition, the strong debris of discarded object adsorptivity such as plastic bag adsorb easily on the metal grid area, do not have the function of clearing up the metal grid area surface, lead to some impurity to drop easily from the opposite side and follow the sewage and flow away, the filter effect is relatively poor, consequently, it is necessary to propose a novel sewage filtration equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a filtration equipment for hydraulic engineering to solve at least the gap between prior art grid de-dirt machine and the river course and can not block, poor stability is difficult to guarantee that sewage is whole from the grid de-dirt machine through, can not take the brush to wash metal grating moreover, causes easily to filter debris and flows away along with sewage in falling into the sewage by the reversal, problem that the filter effect is poor.
In order to achieve the above object, the utility model provides a following technical scheme: a filter apparatus for hydraulic engineering, comprising:
a filtering mechanism;
the two support rods are respectively and rotatably connected to the left end and the right end of the middle part of the rear side of the filtering mechanism through pin shafts;
the two blocking mechanisms are respectively detachably arranged at the left end and the right end of the front side of the filtering mechanism;
the cleaning mechanism is detachably arranged at the top of the rear side of the filtering mechanism;
the filter residue box is detachably arranged on the rear side of the filtering mechanism and is positioned right below the cleaning mechanism;
and the box door is hinged to the right side wall of the filter residue box.
Preferably, the bottom of the filter residue box is provided with a filter screen.
Preferably, the filter mechanism comprises: a frame; the two rotating shafts are respectively and rotatably connected to the upper end and the lower end of the inner cavity of the frame along the left-right direction through waterproof bearings; every two of the four chain wheels are a group and are respectively detachably arranged at the left end and the right end of the outer wall of the rotating shaft; the first motor is connected to the top of the left side wall of the frame through a screw, and the output end of the first motor is detachably connected with the left end of the rotating shaft at the top end; and the metal conveying belt is connected to the outer wall of the chain wheel through a chain.
Preferably, the blocking mechanism comprises: the first baffle is detachably arranged on the front side of the frame; the second baffle is rotatably connected to the front side of the first baffle through a pin shaft; the limiting cylinder is fixedly connected to the bottom of the inner side of the second baffle; the inserted bar is inserted into the inner cavity of the limiting cylinder; the handle, handle fixed connection is in the top of inserted bar.
Preferably, the cleaning mechanism includes: the shell is detachably arranged at the top of the rear side of the frame; the two sliding rods are detachably arranged at the upper end and the lower end of the inner cavity of the shell along the left-right direction respectively; the vibrating plate is sleeved on the outer wall of the sliding rod, and a sliding groove is formed in the center position of the front side of the vibrating plate in the vertical direction; the plurality of brushes are detachably arranged on the front side of the vibrating plate from left to right and are in contact with the metal conveying belt; the second motor is connected to the center of the rear side of the shell through a screw; one end of the swing rod is detachably arranged at the output end of the second motor; and one end of the shifting rod is detachably arranged at the other end of the swing rod, and the other end of the shifting rod is inserted into the inner cavity of the sliding groove.
Preferably, the length of the inner cavity of the sliding groove is larger than the diameter of a circular track of the second motor which drives the shifting lever to run through the swing rod.
Compared with the prior art, the beneficial effects of the utility model are that: this filtration equipment for hydraulic engineering, block between frame and the river course lateral wall through stop mechanism, ensure that sewage can pass through metal conveyor belt, make metal conveyor belt upwards rotate through filtering mechanism, utilize metal conveyor belt to filter sewage, make the filter residue upwards promote simultaneously, clearance mechanism can make the brush left and right sides vibration, use the brush to carry out the clearance of filter residue on the metal conveyor belt, ensure that the filter residue drops into the filter residue incasement, and then reach the filterable purpose of sewage, in the time of the in-service use, sewage stops the effect, high stability, installation labour saving and time saving, ensure that sewage flows through from metal conveyor belt, in addition, the function of clearing up is carried out to metal conveyor belt surface has, avoid some impurity to drop from the opposite side and follow the sewage and flow away, the filter effect is strong, very big filterable demand of sewage has been satisfied.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front cross-sectional view of the filter mechanism of FIG. 1;
FIG. 3 is a right side sectional view of FIG. 1;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a front cross-sectional view of the cleaning mechanism of FIG. 1.
In the figure: 2. the device comprises a filtering mechanism, 21, a frame, 22, a rotating shaft, 23, a chain wheel, 24, a first motor, 25, a metal conveying belt, 3, a supporting rod, 4, a blocking mechanism, 41, a first baffle, 42, a second baffle, 43, a limiting cylinder, 44, an inserting rod, 45, a handle, 5, a cleaning mechanism, 51, a shell, 52, a sliding rod, 53, a vibrating plate, 54, a sliding groove, 55, a brush, 56, a second motor, 57, a swinging rod, 58, a shifting rod, 6, a slag filtering box, 7 and a box door.
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 work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a filtration equipment for hydraulic engineering, including filtering mechanism 2, bracing piece 3, stop gear 4, clearance mechanism 5, filter residue case 6 and chamber door 7, two bracing pieces 3 rotate respectively through the round pin axle and connect in both ends about filtering mechanism 2's rear side middle part, support frame 21 through bracing piece 3, guarantee frame 21 stable seat in the river course, two stop gear 4 can be dismantled respectively and set up in both ends about filtering mechanism 2's front side, clearance mechanism 5 can be dismantled and set up in filtering mechanism 2's rear side top, filter residue case 6 can be dismantled and set up in filtering mechanism 2's rear side, and filter residue case 6 is located clearance mechanism 5 under, collect the filter residue through filter residue case 6, chamber door 7 articulates in the right side wall of filter residue case 6.
As preferred scheme, further, the bottom of residue case 6 is provided with the filter screen, utilizes the mesh of residue case 6 bottom to make sewage filter out, avoids sewage polymerization to lead to the too big quality of residue case 6 in residue case 6.
As the preferred scheme, furthermore, filtering mechanism 2 includes frame 21, pivot 22, sprocket 23, first motor 24 and metal conveyer belt 25, two pivot 22 rotate respectively along left and right direction through waterproof bearing and connect in both ends about the inner chamber of frame 21, four sprocket 23 are every two and can dismantle respectively for a set of setting in both ends about the outer wall of pivot 22, utilize sprocket 23 to support metal conveyer belt 25, drive its rotation, first motor 24 screwed connection is in the left side wall top of frame 21, and the output of first motor 24 can be dismantled with the left end that is located the pivot 22 on top and be connected, provide rotary power for pivot 22 through first motor 24, metal conveyer belt 25 chain connection is in the outer wall of sprocket 23, filter sewage through metal conveyer belt 25.
Preferably, the blocking mechanism 4 further includes a first blocking plate 41, a second blocking plate 42, a limiting cylinder 43, an insertion rod 44 and a handle 45, the first blocking plate 41 is detachably disposed on the front side of the frame 21, the second blocking plate 42 is rotatably connected to the front side of the first blocking plate 41 through a pin shaft, the first blocking plate 41 and the second blocking plate 42 are matched to block sewage to ensure that the sewage can pass through the metal conveyor belt 25, the limiting cylinder 43 is fixedly connected to the bottom of the inner side of the second blocking plate 42, the limiting cylinder 43 is used for limiting the insertion rod 44, the insertion rod 44 is inserted into an inner cavity of the limiting cylinder 43, the bottom of the insertion rod 44 is conical to facilitate the insertion rod 44 to be inserted into the bottom of the river channel to position the second blocking plate 42, and the handle 45 is fixedly connected to the top end of the insertion rod 44.
Preferably, the cleaning mechanism 5 further includes a housing 51, slide rods 52, a vibration plate 53, sliding grooves 54, brushes 55, a second motor 56, a swing rod 57 and a shift lever 58, the housing 51 is detachably disposed at the top of the rear side of the frame 21, the two slide rods 52 are detachably disposed at the upper and lower ends of the inner cavity of the housing 51 along the left-right direction, the vibration plate 53 is limited by the slide rods 52 to ensure that the vibration plate 53 can horizontally move left and right, the vibration plate 53 is sleeved on the outer wall of the slide rods 52, the sliding grooves 54 are disposed at the center position of the front side of the vibration plate 53 along the up-down direction, the brushes 55 are detachably disposed at the front side of the vibration plate 53 from left to right, the brushes 55 are in contact with the metal conveying belt 25, the brushes 55 are used for brushing the metal conveying belt 25 to clean away adsorbed filter residues, the second motor 56 is screwed to the center position of the, one end of the swing rod 57 is detachably arranged at the output end of the second motor 56, one end of the shift lever 58 is detachably arranged at the other end of the swing rod 57, the other end of the shift lever 58 is inserted into the inner cavity of the sliding groove 54, and the outer wall of the shift lever 58 is a circular curved surface, so that the shift lever 58 can slide up and down in the sliding groove 54 conveniently.
Preferably, the length of the inner cavity of the sliding slot 54 is greater than the diameter of the circular track of the second motor 56 driving the shift lever 58 through the swing link 57, so that the shift lever 58 can slide freely in the sliding slot 54, and the rotation of the shift lever 58 is prevented from being blocked.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
When the device is used, the device is placed in a river channel, the support rod 3 is used for supporting, the second baffle plate 42 is rotated outwards until the second baffle plate 42 is contacted with the side wall of the river channel, the handle 45 is held, the inserted rod 44 is inserted into the bottom of the river channel under the limit of the limit cylinder 43, the second baffle plate 42 is positioned, the sewage is blocked by the cooperation of the second baffle plate 42 and the first baffle plate 41, the flowing sewage is ensured to pass through the metal conveying belt 25, the metal conveying belt 25 filters the sewage, the rotating shaft 22 and the chain wheel 23 which are positioned at the top end are driven to rotate by the first motor 24, the metal conveying belt 25 is moved upwards under the rotating force of the chain wheel 23, so that sundries adsorbed on the metal conveying belt 25 are lifted upwards, the second motor 56 drives the shift lever 58 to do clockwise circular motion through the swing rod 57, because the chute 54 is arranged along the up and down direction, the shift lever 58 can slide up and down in the chute 54, the shift, brush 55 scrubs metal conveyor belt 25, remove debris on the metal conveyor belt 25, make debris drop into in the filter residue case 6, guarantee the cleanness on metal conveyor belt 25 surface, so that metal conveyor belt 25 effectively filters sewage, open chamber door 7, alright clear up filter residue in the filter residue case 6, thereby when sewage filters, can block sewage, and stability is strong, guarantee that sewage can all pass through from metal conveyor belt 25, and can scrub metal conveyor belt 25, avoid causing to filter debris and flow away along with sewage in by reverse falling into the sewage, and the filter effect is strong, more do benefit to the popularization.
In the description of the present invention, it is to be understood that the terms "bottom", "one end", "middle", "other end", "upper", "top", "inner", "front", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated; also, unless expressly stated or limited otherwise, the terms "removably disposed," "fixedly attached," "opened," "inserted," "screwed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed attachment, a removable attachment, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A kind of hydraulic engineering uses the filtration equipment, characterized by comprising:
a filter mechanism (2);
the two support rods (3) are respectively and rotatably connected to the left end and the right end of the middle part of the rear side of the filtering mechanism (2) through pin shafts;
the two blocking mechanisms (4) are respectively detachably arranged at the left end and the right end of the front side of the filtering mechanism (2);
the cleaning mechanism (5), the cleaning mechanism (5) is detachably arranged at the top of the rear side of the filtering mechanism (2);
the filter residue box (6) is detachably arranged on the rear side of the filtering mechanism (2), and the filter residue box (6) is positioned right below the cleaning mechanism (5);
the box door (7), the box door (7) articulates the right side wall in filter residue case (6).
2. The filter equipment for hydraulic engineering according to claim 1, characterized in that: and a filter screen is arranged at the bottom of the filter residue box (6).
3. The filter equipment for hydraulic engineering according to claim 1, characterized in that: the filter mechanism (2) comprises:
a frame (21);
the two rotating shafts (22) are respectively and rotatably connected to the upper end and the lower end of an inner cavity of the frame (21) along the left-right direction through waterproof bearings;
the four chain wheels (23) are respectively detachably arranged at the left end and the right end of the outer wall of the rotating shaft (22) in a group of two every four chain wheels (23);
the first motor (24), the first motor (24) is screwed on the top of the left side wall of the frame (21), and the output end of the first motor (24) is detachably connected with the left end of the rotating shaft (22) at the top end;
a metal conveyor belt (25), wherein the metal conveyor belt (25) is connected with the outer wall of the chain wheel (23) in a chain mode.
4. The filter equipment for hydraulic engineering according to claim 1, characterized in that: the blocking mechanism (4) comprises:
a first baffle plate (41), wherein the first baffle plate (41) is detachably arranged at the front side of the frame (21);
the second baffle plate (42), the said second baffle plate (42) is connected to the front side of the first baffle plate (41) rotatably through the axis pin;
the limiting cylinder (43), the limiting cylinder (43) is fixedly connected to the bottom of the inner side of the second baffle plate (42);
the insertion rod (44) is inserted into the inner cavity of the limiting cylinder (43);
and the handle (45), wherein the handle (45) is fixedly connected to the top end of the insert rod (44).
5. The filter equipment for hydraulic engineering according to claim 1, characterized in that: the cleaning mechanism (5) comprises:
the shell (51), the shell (51) is detachably arranged at the top of the rear side of the frame (21);
the two sliding rods (52) are detachably arranged at the upper end and the lower end of the inner cavity of the shell (51) along the left-right direction respectively;
the vibrating plate (53) is sleeved on the outer wall of the sliding rod (52), and a sliding groove (54) is formed in the center position of the front side of the vibrating plate (53) along the vertical direction;
the brushes (55), a plurality of the brushes (55) are detachably arranged on the front side of the vibrating plate (53) from left to right, and the brushes (55) are in contact with the metal conveying belt (25);
a second motor (56), wherein the second motor (56) is connected with the rear center position of the shell (51) through a screw;
one end of the swing rod (57) is detachably arranged at the output end of the second motor (56);
one end of the shifting rod (58) is detachably arranged at the other end of the swinging rod (57), and the other end of the shifting rod (58) is inserted into the inner cavity of the sliding groove (54).
6. The filter equipment for hydraulic engineering according to claim 5, characterized in that: the length of an inner cavity of the sliding groove (54) is larger than the diameter of a circular track of the second motor (56) which drives the shifting rod (58) to run through the swing rod (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020881334.5U CN212680292U (en) | 2020-05-24 | 2020-05-24 | Filtration equipment for hydraulic engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020881334.5U CN212680292U (en) | 2020-05-24 | 2020-05-24 | Filtration equipment for hydraulic engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212680292U true CN212680292U (en) | 2021-03-12 |
Family
ID=74889512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020881334.5U Expired - Fee Related CN212680292U (en) | 2020-05-24 | 2020-05-24 | Filtration equipment for hydraulic engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212680292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102657A (en) * | 2021-04-12 | 2021-07-13 | 成都盛世京缆电缆有限公司 | Cable straightening device |
| CN117258391A (en) * | 2022-02-09 | 2023-12-22 | 深圳市滨特尔环保设备有限公司 | Large-scale sewage treatment is with integrative smart machine |
-
2020
- 2020-05-24 CN CN202020881334.5U patent/CN212680292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102657A (en) * | 2021-04-12 | 2021-07-13 | 成都盛世京缆电缆有限公司 | Cable straightening device |
| CN117258391A (en) * | 2022-02-09 | 2023-12-22 | 深圳市滨特尔环保设备有限公司 | Large-scale sewage treatment is with integrative smart machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212680292U (en) | Filtration equipment for hydraulic engineering | |
| CN211801117U (en) | Screening plant is used in soil restoration with broken mechanism | |
| CN219251787U (en) | Channel sewage purification treatment device | |
| CN206767666U (en) | A kind of rotary grid trash | |
| CN212655491U (en) | Sludge discharge device for sewage treatment | |
| CN211486714U (en) | Industrial sewage preliminary treatment solid-liquid separation equipment convenient to use | |
| CN117505380A (en) | Salt adding, stirring and cleaning device for plush toy | |
| CN214271685U (en) | A kind of bridge drainage device | |
| CN116621265A (en) | Rainwater collection and purification device for sponge city | |
| CN214130466U (en) | Building drainage filter equipment that can handle impurity | |
| CN211888207U (en) | Quartz sand production is with washing device that has multidirectional adjustment mechanism | |
| CN212091194U (en) | Novel sewage treatment equipment | |
| CN113772838A (en) | Factory wastewater purification decontamination equipment | |
| CN114811263A (en) | Hydraulic pipeline device for hydraulic engineering | |
| CN208495150U (en) | A kind of old and useless battery cleaning device | |
| CN220432388U (en) | Engineering construction sewage treatment plant | |
| CN222019030U (en) | Village and town sewage treatment structure | |
| CN221345506U (en) | River sewage ecological treatment device | |
| CN216963789U (en) | Two-sided filter screen chain grating de-dirt machine | |
| CN215387860U (en) | Organic toxicity effluent treatment plant | |
| CN220149385U (en) | Domestic sewage treatment device | |
| CN216755522U (en) | Drainage device of dust treatment reaction tower | |
| CN217909205U (en) | Sewage treatment plant coarse grid sewage interception device | |
| CN212504058U (en) | Multi-level grid device for sewage treatment | |
| CN221412360U (en) | Ecological filtering equipment for treating polluted river water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |