CN112337188A - Flushing type soft filtering device in front of pump - Google Patents
Flushing type soft filtering device in front of pump Download PDFInfo
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- CN112337188A CN112337188A CN202011216007.9A CN202011216007A CN112337188A CN 112337188 A CN112337188 A CN 112337188A CN 202011216007 A CN202011216007 A CN 202011216007A CN 112337188 A CN112337188 A CN 112337188A
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- tank
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- filter screen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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Abstract
The invention discloses a flushing type soft filtering device before a pump, relates to a filtering device, and mainly aims to provide a flushing type soft filtering device before a pump, which can protect a filter screen in a filter tank. The main technical scheme of the invention is as follows: a flush pre-pump soft filtration device comprising: the sedimentation component is connected with one end of the connecting channel and the other end of the connecting channel is connected with the sedimentation tank; the first partition wall is arranged between the filter tank and the sedimentation tank, the water inlet pipe is arranged in the first partition wall, two ends of the water inlet pipe are connected with the sedimentation tank and the filter tank, the first filter screen is connected to one end, close to the sedimentation tank, of the water inlet pipe, and the second filter screen is connected to one end, close to the filter tank, of the water inlet pipe; the water storage tank is communicated with the filtering tank, one end of the water pumping pipe extends into the water storage tank, and the other end of the water pumping pipe is connected with the water pumping pump; and one end of the sewage discharge pipe is connected to the second filter screen, and the other end of the sewage discharge pipe penetrates through the water storage tank and extends into the sewage discharge tank. The invention is mainly used for filtering sewage.
Description
Technical Field
The invention relates to the technical field of filtering devices, in particular to a flushing type pre-pump soft filtering device.
Background
The contradiction that water resources are scarce and the economic development is not suitable is increasingly prominent, the drought and water shortage seriously affect the industrial and agricultural development of China, and the contradiction between supply and demand of water resources needs to be relieved to ensure the water safety, ecological safety and food safety of China, so that the national strictest water resource management requirement is met. Underground water has no available potential, surface water becomes a main water source of micro-irrigation engineering, most of the surface water comes from mountain stream rivers, has the characteristic of high silt content and cannot be directly used for a micro-irrigation system. How to reduce the treatment cost of surface water silt and water quality becomes a key factor for popularizing the high-efficiency water-saving technology.
Among the prior art, generally including sedimentation tank and filtering ponds, set up the pipeline between sedimentation tank and filtering ponds, and, set up the filter screen in the filtering ponds, filter the water that gets into in the filtering ponds through the filter screen, but, because sedimentation tank and ditch link to each other, make different volumes, the impurity of different materials all can follow the pipeline and enter into the filter screen in the filtering ponds, thereby lead to the filter screen often to damage, and, the volume of filter screen receives the restriction of the size of filtering ponds, after impurity in the filter screen is too much, can lead to the easy damage of filter screen on the one hand, on the other hand, partial impurity can spill over the filter screen and enter into the filtering ponds, thereby cause impurity to leak.
Disclosure of Invention
In view of this, an embodiment of the present invention provides a flushing type soft filtering device before pump, and mainly aims to provide a flushing type soft filtering device before pump capable of protecting a filter screen in a filter tank.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides a flushing type soft filtering device before a pump, which comprises:
the sedimentation component comprises a sedimentation tank and a connecting channel, one end of the connecting channel is connected to the water channel, and the other end of the connecting channel is connected to the sedimentation tank;
the filter component comprises a filter tank, a first partition wall, a water inlet pipe and filter screens, wherein each filter screen comprises a first filter screen and a second filter screen, the first partition wall is arranged between the filter tank and the sedimentation tank, the water inlet pipe is arranged in the first partition wall, two ends of the water inlet pipe are respectively connected to the sedimentation tank and the filter tank, the first filter screen is connected to one end, close to the sedimentation tank, of the water inlet pipe, the second filter screen is connected to one end, close to the filter tank, of the water inlet pipe, and the mesh number of the first filter screens is larger than that of the second filter screens;
the drainage component comprises a reservoir and a water pumping pipe, the reservoir is communicated with the filtering tank, one end of the water pumping pipe extends into the reservoir, and the other end of the water pumping pipe is connected to a water pump;
the blowdown part, the blowdown part includes blowdown pond and blow off pipe, the one end of blow off pipe connect in the second filter screen, the other end passes the cistern stretches into in the blowdown pond.
Furthermore, the drainage component also comprises a drainage pipe, a second partition wall is arranged between the filtering tank and the reservoir, the drainage pipe is arranged in the second partition wall, and two ends of the drainage pipe are respectively connected with the filtering tank and the reservoir.
Further, the drain pipe is arranged at the upper part of the sewage discharge pipe.
Furthermore, the filter unit still includes the shutoff part, the shutoff part includes support frame, picture peg and promotion part, the support frame is fixed first partition wall is close to one side of sedimentation tank, the middle part swing joint that promotes the part in the support frame, the picture peg connect in promote the part, be used for the shutoff the inlet tube.
Further, it includes slide bar and joint part to promote the part, the sliding hole has on the support frame, the one end of slide bar connect in the picture peg, the other end passes the sliding hole, the surface of slide bar has a plurality of joint interfaces, the one end fixed connection of joint part in the support frame, the other end can the joint in one of them the joint interface.
Further, the first filter screen is a hard screen, and the second filter screen is a flexible screen.
Further, the safety frame is arranged at the upper part of the filtering tank.
Further, the bottom of the filtering tank is higher than the bottoms of the settling tank and the sewage disposal tank.
Furthermore, the quantity of inlet tube, drinking-water pipe with the drain pipe is a plurality of.
Compared with the prior art, the invention has the following technical effects:
in the technical scheme provided by the embodiment of the invention, the sedimentation component is used for settling impurities and comprises a sedimentation tank and a connecting channel, one end of the connecting channel is connected with the water channel, and the other end of the connecting channel is connected with the sedimentation tank; the filter component is used for filtering water and comprises a filter tank, a first partition wall, a water inlet pipe and filter screens, wherein each filter screen comprises a first filter screen and a second filter screen; the drainage component is used for draining filtered water into a farmland and comprises a reservoir and a water pumping pipe, the reservoir is communicated with the filtering tank, one end of the water pumping pipe extends into the reservoir, and the other end of the water pumping pipe is connected to a water pumping pump; the sewage discharge component is used for collecting impurities and comprises a sewage discharge pool and a sewage discharge pipe, one end of the sewage discharge pipe is connected to the second filter screen, the other end of the sewage discharge pipe penetrates through the water storage pool and extends into the sewage discharge pool, compared with the prior art, a pipeline is arranged between the sedimentation pool and the filter pool, in addition, the filter screen is arranged in the filter pool, water entering the filter pool is filtered through the filter screen, however, as the sedimentation pool is connected with the water channel, impurities with different volumes and different materials can enter the filter screen in the filter pool from the pipeline, so that the filter screen is frequently damaged, in addition, the volume of the filter screen is limited by the size of the filter pool, when the impurities in the filter screen are excessive, on one hand, the filter screen is easy to damage, on the other hand, partial impurities can overflow the filter screen and enter the filter pool, so that the impurities, set up first filter screen through the one end that is close to the sedimentation tank at the inlet tube, the second filter screen sets up the one end that is close to the filtering tank at the inlet tube, and, the mesh number of first filter screen is greater than the mesh number of second filter screen, make first filter screen stop the great impurity of volume in the sedimentation tank earlier, thereby reach and prevent that the great impurity of volume from causing the technical effect of damage or destruction to the second filter screen, simultaneously, set up the blowdown part at the rear of cistern, blow off pipe one end is connected in the second filter screen, make impurity in the second filter screen can enter into the blow off pond through the blow off pipe, thereby reach the technical effect of protection second filter screen.
Drawings
FIG. 1 is a schematic structural view of a flushing pre-pump soft filtration device according to an embodiment of the present invention;
fig. 2 is a schematic top view of a soft filter device before a flush pump according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, an embodiment of the present invention provides a flush pre-pump soft filtration apparatus, including:
the sedimentation component comprises a sedimentation tank 11 and a connecting channel 12, one end of the connecting channel 12 is connected with the ditch 9, and the other end of the connecting channel 12 is connected with the sedimentation tank 11;
the filter component comprises a filter tank 21, a first partition wall 22, a water inlet pipe 23 and filter screens, wherein each filter screen comprises a first filter screen 241 and a second filter screen 242, the first partition wall 22 is arranged between the filter tank 21 and the sedimentation tank 11, the water inlet pipe 23 is arranged in the first partition wall 22, two ends of the water inlet pipe 23 are respectively connected to the sedimentation tank 11 and the filter tank 21, the first filter screen 241 is connected to one end, close to the sedimentation tank 11, of the water inlet pipe 23, the second filter screen 242 is connected to one end, close to the filter tank 21, of the water inlet pipe 23, and the mesh number of the first filter screen 241 is larger than that of the second filter screen 242;
the drainage component comprises a reservoir 31 and a water pumping pipe 32, the reservoir 31 is communicated with the filter tank 21, one end of the water pumping pipe 32 extends into the reservoir 31, and the other end of the water pumping pipe is connected with a water pump;
and the sewage discharging part comprises a sewage discharging pool 41 and a sewage discharging pipe 42, one end of the sewage discharging pipe 42 is connected to the second filter screen 242, and the other end of the sewage discharging pipe passes through the water storage pool 31 and extends into the sewage discharging pool 41.
In the technical scheme provided by the embodiment of the invention, the sedimentation component is used for precipitating impurities and comprises a sedimentation tank 11 and a connecting channel 12, one end of the connecting channel 12 is connected with the water channel 9, and the other end of the connecting channel 12 is connected with the sedimentation tank 11; the filter part is used for filtering water and comprises a filter tank 21, a first partition wall 22, a water inlet pipe 23 and filter screens, wherein each filter screen comprises a first filter screen 241 and a second filter screen 242, the first partition wall 22 is arranged between the filter tank 21 and the sedimentation tank 11, the water inlet pipe 23 is arranged in the first partition wall 22, two ends of the water inlet pipe 23 are respectively connected to the sedimentation tank 11 and the filter tank 21, the first filter screen 241 is connected to one end, close to the sedimentation tank 11, of the water inlet pipe 23, the second filter screen 242 is connected to one end, close to the filter tank 21, of the water inlet pipe 23, and the mesh number of the first filter screen 241 is larger than that of the second filter screen 242; the drainage part is used for draining filtered water into a farmland and comprises a water storage tank 31 and a water pumping pipe 32, the water storage tank 31 is communicated with the filter tank 21, one end of the water pumping pipe 32 extends into the water storage tank 31, and the other end of the water pumping pipe is connected to a water pumping pump; the effect of blowdown part is to collect impurity, the blowdown part includes blowdown pond 41 and blow off pipe 42, the one end of blow off pipe 42 is connected in second filter screen 242, the other end passes cistern 31 and stretches into in the blowdown pond 41, compared with the prior art, set up the pipeline between sedimentation tank 11 and filtering ponds 21, and, set up the filter screen in filtering ponds 21, filter the water that gets into filtering ponds 21 through the filter screen, however, because sedimentation tank 11 links to each other with ditch 9, make the impurity of different volumes, different materials all can get into the filter screen in filtering ponds 21 from the pipeline, thereby lead to the filter screen to often damage, and, the volume of filter screen receives the restriction of the size of filtering ponds 21, after the impurity in the filter screen is too much, can lead to the filter screen to be damaged easily on the one hand, on the other hand, some impurity can spill over and get into filtering ponds 21, therefore, impurities are leaked out, in the technical scheme, the first filter screen 241 is arranged at one end, close to the sedimentation tank 11, of the water inlet pipe 23, the second filter screen 242 is arranged at one end, close to the filter tank 21, of the water inlet pipe 23, the mesh number of the first filter screen 241 is larger than that of the second filter screen 242, so that the first filter screen 241 firstly blocks the impurities with larger volume in the sedimentation tank 11, and the technical effect of preventing the impurities with larger volume from damaging or damaging the second filter screen 242 is achieved; optionally, can also set up the third filter screen on the blowdown pond, and, connect blowdown pond 41 and ditch 9 through back flow 43, the impurity of third filter screen in with blowdown pond 41 filters, make the water in the blowdown pond 41 can flow into in the ditch 9, thereby reach the technological effect of environmental protection, also can set up the sewage pump on the blowdown pond, take out the water in the blowdown pond back the sedimentation tank and filter once more, thereby reach the effect of not wasting water.
The function of the above-mentioned sedimentation component is to precipitate impurities, the sedimentation component includes a sedimentation tank 11 and a connecting channel 12, one end of the connecting channel 12 is connected to the ditch 9, the other end is connected to the sedimentation tank 11, the sedimentation tank 11 is usually made of steel material or brick structure, the connecting channel 12 is usually made of stainless steel material or PVC material, of course, it can also be made of other suitable materials, the diameter of the connecting channel 12 is usually larger, so that the water in the ditch 9 can enter the sedimentation tank 11 more quickly; the filter unit is used for filtering water, the filter unit comprises a filter tank 21, a first partition wall 22, a water inlet pipe 23 and filter screens, the filter screens comprise a first filter screen 241 and a second filter screen 242, the first partition wall 22 is arranged between the filter tank 21 and a sedimentation tank 11, the water inlet pipe 23 is arranged in the first partition wall 22, two ends of the water inlet pipe 23 are respectively connected with the sedimentation tank 11 and the filter tank 21, the first filter screen 241 is connected with one end of the water inlet pipe 23 close to the sedimentation tank 11, the second filter screen 242 is connected with one end of the water inlet pipe 23 close to the filter tank 21, wherein the mesh number of the first filter screen 241 is larger than that of the second filter screen 242, the filter tank 21 is usually made of steel materials or brick-laid structures, the first partition wall 22 is arranged between the sedimentation tank 11 and the filter tank 21, the water inlet pipe 23 is arranged inside the first partition wall 22, and two ends of the water inlet pipe 23 are respectively connected with, the number of the water inlet pipes 23 can be one, or a plurality of water inlet pipes 23, because the water needs to be precipitated in the sedimentation tank 11, therefore, the bottom of the sedimentation tank 11 needs to be higher than the bottom of the filtration tank 21, so that a certain distance is formed between the water inlet pipes 23 and the bottom of the sedimentation tank 11, thereby achieving the technical effect of preventing precipitates from entering the filtration tank 21 through the connecting channel 12, the first filter screen 241 is connected to one end of the water inlet pipe 23 close to the sedimentation tank 11, the first filter screen 241 is usually a hard filter screen, such as a steel structure screen, in order to block hard or large-sized impurities, the second filter screen 242 is connected to one end of the water inlet pipe 23 close to the filtration tank 21, the second filter screen 242 is a flexible filter screen, and small-sized impurities are filtered, thereby achieving the effect of purifying water quality; the drainage component is used for draining filtered water into a farmland and comprises a water storage tank 31 and a water pumping pipe 32, the water storage tank 31 is communicated with the filter tank 21, one end of the water pumping pipe 32 extends into the water storage tank 31, the other end of the water pumping pipe is connected to a water pumping pump, the bottom of the water storage tank 31 is usually lower than that of the filter tank 21, one end of the water pumping pipe 32 extends into the middle part or the bottom of the water storage tank 31, the water pumping pipe 32 is arranged at the other end of the water pumping pipe, and the water in the water storage tank 31 is pumped into the farmland by the water pumping pump, so that the technical effect of irrigating the farmland is achieved; impurity is collected to the effect of blowdown part, the blowdown part includes blowdown pond 41 and blow off pipe 42, the one end of blow off pipe 42 is connected in second filter screen 242, the other end passes cistern 31 and stretches into in the blowdown pond 41, impurity is collected to the effect of blowdown pond 41, impurity and sewage can enter into blowdown pond 41 through second filter screen 242 and blow off pipe 42, prevent that impurity from piling up in second filter screen 242, thereby reach the technological effect of protection filter screen, need regularly wash or clear up blowdown pond 41.
Further, the drain part further includes a drain pipe 33, a second partition wall 34 is provided between the filtering tank 21 and the reservoir 31, the drain pipe 33 is disposed in the second partition wall 34, and both ends of the drain pipe 33 are connected to the filtering tank 21 and the reservoir 31, respectively. In this embodiment, a drain pipe 33 and a second partition wall 34 are added, the second partition wall 34 is disposed between the filtering basin 21 and the water reservoir 31, the drain pipe 33 is disposed in the second partition wall 34, the number of the drain pipes 33 may be one or more, the material of the drain pipe 33 is the same as that of the connecting channel 12, both ends of the drain pipe 33 are respectively connected to the filtering basin 21 and the water reservoir 31, and the drain pipe 33 is generally inclined toward the water reservoir 31, so that the water in the filtering basin 21 can flow into the water reservoir 31 as fast as possible, thereby achieving the technical effect of guiding the water in the filtering basin 21 into the water reservoir 31; optionally, the drain pipe 33 is arranged on the upper portion of the drain pipe 42, so as to facilitate draining, and the bottom of the filtering tank 21 has certain pressure, so that impurities and sewage in the drain pipe 42 can enter the draining tank 41 under the action of the pressure, and the technical effect of improving the draining speed is achieved.
Further, the filtering component further comprises a plugging component, the plugging component comprises a supporting frame 251, an inserting plate 252 and a lifting component, the supporting frame 251 is fixed on one side of the first partition wall 22 close to the sedimentation tank 11, the middle part of the lifting component is movably connected to the supporting frame 251, and the inserting plate 252 is connected to the lifting component and used for plugging the water inlet pipe 23. In this embodiment, a plugging component is added, and the plugging component is used for plugging the water inlet pipe 23, and when the sedimentation tank 11 needs to be cleaned, the water inlet pipe 23 needs to be plugged, so that the support frame 251 is arranged on one side of the first partition wall 22 close to the sedimentation tank 11, the lifting component is movably connected to the support frame 251, the lifting component can raise or lower the plug board 252, so that the plug board 252 can plug the water inlet pipe 23, and the technical effect of blocking water from passing through the water inlet pipe 23 is achieved; optionally, the lifting part includes a sliding rod 253 and a clamping part 254, a sliding hole is provided on the support frame 251, one end of the sliding rod 253 is connected to the insert plate 252, the other end of the sliding rod 253 passes through the sliding hole, a plurality of clamping interfaces are provided on the surface of the sliding rod 253, one end of the clamping part 254 is fixedly connected to the support frame 251, and the other end of the clamping part 254 can be clamped to one of the clamping interfaces, so that the sliding rod 253 can be fixed to the clamping part 254, and the technical effect of fixing the position of the insert plate 252 is achieved.
Further, a safety shelf 5, the safety shelf 5 is arranged at the upper part of the filtering tank 21. In this embodiment, safety shelf 5 has been increased, and safety shelf 5's effect is to carry out part to the upper portion of filtering ponds 21 and cover for personnel can walk on the upper portion of filtering ponds 21, and of course, safety shelf 5 also can set up the upper portion at sedimentation tank 11 or cistern 31, thereby reaches the technological effect that prevents personnel and drop.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A soft pre-pump filter apparatus for a flush, comprising:
the sedimentation component comprises a sedimentation tank and a connecting channel, one end of the connecting channel is connected to the water channel, and the other end of the connecting channel is connected to the sedimentation tank;
the filter component comprises a filter tank, a first partition wall, a water inlet pipe and filter screens, wherein each filter screen comprises a first filter screen and a second filter screen, the first partition wall is arranged between the filter tank and the sedimentation tank, the water inlet pipe is arranged in the first partition wall, two ends of the water inlet pipe are respectively connected to the sedimentation tank and the filter tank, the first filter screen is connected to one end, close to the sedimentation tank, of the water inlet pipe, the second filter screen is connected to one end, close to the filter tank, of the water inlet pipe, and the mesh number of the first filter screens is larger than that of the second filter screens;
the drainage component comprises a reservoir and a water pumping pipe, the reservoir is communicated with the filtering tank, one end of the water pumping pipe extends into the reservoir, and the other end of the water pumping pipe is connected to a water pump;
the blowdown part, the blowdown part includes blowdown pond and blow off pipe, the one end of blow off pipe connect in the second filter screen, the other end passes the cistern stretches into in the blowdown pond.
2. A pre-flush pump soft filtration device as claimed in claim 1,
the drainage component further comprises a drainage pipe, a second partition wall is arranged between the filtering tank and the water storage tank, the drainage pipe is arranged in the second partition wall, and two ends of the drainage pipe are respectively connected to the filtering tank and the water storage tank.
3. A pre-flush pump soft filtration device as claimed in claim 2,
the drain pipe is arranged at the upper part of the sewage draining pipe.
4. A pre-flush pump soft filtration device as claimed in claim 1,
filter element still includes the shutoff part, the shutoff part includes support frame, picture peg and promotion part, the support frame is fixed first partition wall is close to one side of sedimentation tank, the middle part swing joint that promotes the part in the support frame, the picture peg connect in promote the part, be used for the shutoff the inlet tube.
5. A pre-flush pump soft filtration device as claimed in claim 4,
the promotion part includes slide bar and joint part, the slide opening has on the support frame, the one end of slide bar connect in the picture peg, the other end passes the slide opening, the surface of slide bar has a plurality of joint interfaces, the one end fixed connection of joint part in the support frame, the other end can the joint in one of them the joint interface.
6. A pre-pump soft filtration device as claimed in any one of claims 1 to 5,
the first filter screen is a hard screen, and the second filter screen is a flexible screen.
7. A flush pre-pump soft filtration device as claimed in any one of claims 1 to 5, further comprising:
and the safety frame is arranged at the upper part of the filtering tank.
8. A pre-pump soft filtration device as claimed in any one of claims 1 to 5,
the bottom of the filter tank is higher than the bottoms of the sedimentation tank and the sewage disposal tank.
9. A pre-pump soft filtration device as claimed in any one of claims 1 to 5,
the quantity of inlet tube, drinking-water pipe with the drain pipe is a plurality of.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216007.9A CN112337188A (en) | 2020-11-04 | 2020-11-04 | Flushing type soft filtering device in front of pump |
| PCT/CN2021/128031 WO2022095838A1 (en) | 2020-11-04 | 2021-11-02 | Flush-type pump-anterior soft filtering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216007.9A CN112337188A (en) | 2020-11-04 | 2020-11-04 | Flushing type soft filtering device in front of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112337188A true CN112337188A (en) | 2021-02-09 |
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ID=74428228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011216007.9A Pending CN112337188A (en) | 2020-11-04 | 2020-11-04 | Flushing type soft filtering device in front of pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112337188A (en) |
| WO (1) | WO2022095838A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095838A1 (en) * | 2020-11-04 | 2022-05-12 | 李保林 | Flush-type pump-anterior soft filtering apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299775B1 (en) * | 2000-03-17 | 2001-10-09 | Clint R. Elston | Waste and wastewater treatment and recycling system |
| CN101899821A (en) * | 2010-08-03 | 2010-12-01 | 上海市环境科学研究院 | Vertical bank protecting zone area source pollution purifying system combined with bank |
| CN109647050A (en) * | 2018-12-11 | 2019-04-19 | 李保林 | A kind of soft filter device of gravity flow Water flush |
| CN210278516U (en) * | 2019-12-20 | 2020-04-10 | 李保林 | Self-flowing water washing type soft filtering device |
| CN112337188A (en) * | 2020-11-04 | 2021-02-09 | 李保林 | Flushing type soft filtering device in front of pump |
| CN212327645U (en) * | 2020-11-04 | 2021-01-12 | 李保林 | Flushing type soft filtering device in front of pump |
-
2020
- 2020-11-04 CN CN202011216007.9A patent/CN112337188A/en active Pending
-
2021
- 2021-11-02 WO PCT/CN2021/128031 patent/WO2022095838A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095838A1 (en) * | 2020-11-04 | 2022-05-12 | 李保林 | Flush-type pump-anterior soft filtering apparatus |
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| Publication number | Publication date |
|---|---|
| WO2022095838A1 (en) | 2022-05-12 |
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