CN212575749U - Vertical full-automatic back flush filter - Google Patents
Vertical full-automatic back flush filter Download PDFInfo
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- CN212575749U CN212575749U CN202021284979.7U CN202021284979U CN212575749U CN 212575749 U CN212575749 U CN 212575749U CN 202021284979 U CN202021284979 U CN 202021284979U CN 212575749 U CN212575749 U CN 212575749U
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- filter
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Abstract
The utility model discloses a vertical full-automatic back flush filter belongs to filter screen device technical field. The filter includes the barrel, and the inside of barrel is provided with the filter screen, and the inside of filter screen is provided with the soil pick-up assembly, and the inside of barrel is provided with shift fork sleeve assembly, and the outside of barrel is provided with the power unit that drives shift fork sleeve assembly pivoted. The other end of the sewage suction assembly is provided with a screw rod, the outside of the screw rod is sleeved with a transmission nut matched with the screw rod, and the transmission nut is fixedly connected with the partition plate through a connecting rod. One end of the cylinder body close to the power mechanism is provided with a sewage discharge chamber, one section of the sewage suction assembly positioned in the sewage discharge chamber is provided with a sewage discharge hole, and the sewage discharge hole of the sewage discharge chamber is provided with an electromagnetic valve. One end of the cylinder body, which is far away from the power mechanism, is provided with a water inlet, and the side wall of the cylinder body is provided with a water outlet. The utility model adopts the above structure vertical full-automatic back flush filter can carry out online self-cleaning to the filter screen, improves the work efficiency of filter.
Description
Technical Field
The utility model belongs to the technical field of filter equipment technique and specifically relates to a vertical full-automatic back flush filter is related to.
Background
The water resource of China is very short, the water resource is reasonably and effectively utilized, the production cost of enterprises can be reduced, and the method is beneficial to the nation and the people. Therefore, the wastewater generated in industrial production needs to be filtered to realize the recycling of the wastewater. The waste water often contains a large amount of large-particle impurities, and the large-particle impurities influence the normal work of the fine waste water treatment device, and are very important links for filtering the large-particle impurities contained in the waste water. The filter is internally provided with a filter screen for filtering impurities, the wastewater enters the cylinder body of the filter and is filtered by the filter screen, the impurities are attached to the inner surface of the filter screen, and the filtered water passes through the filter screen and is discharged through the water outlet. The existing filter can not realize the automatic cleaning of the filter screen, and needs to be stopped to clean the filter screen, so that the working efficiency of the filter is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vertical full-automatic back flush filter can carry out online self-cleaning to the filter screen, improves the work efficiency of filter.
In order to realize the aim, the utility model provides a vertical full-automatic backwashing filter, which comprises a cylinder body, wherein a filter screen is arranged in the cylinder body, one end of the filter screen is fixedly connected with the cylinder body through a baffle, and the other end of the filter screen is fixedly connected with the cylinder body through a baffle;
a dirt suction assembly for cleaning the filter screen is arranged in the filter screen, a shifting fork sleeve assembly for driving the dirt suction assembly to rotate is arranged in the barrel, and a power mechanism for driving the shifting fork sleeve assembly to rotate is arranged outside the barrel;
the shifting fork sleeve assembly comprises a sleeve, one end of the sleeve is fixedly connected with the power mechanism, one end of the dirt suction assembly, which is positioned in the sleeve, is provided with a limiting plate, the side surface of the limiting plate is provided with a limiting block, the side wall of the sleeve is provided with a limiting groove II matched with the limiting block, and the limiting block is inserted in the limiting groove II;
the other end of the sewage suction assembly is provided with a screw rod, a transmission nut matched with the screw rod is sleeved outside the screw rod, and the transmission nut is fixedly connected with the partition plate through a connecting rod;
a sewage discharge chamber is arranged at one end of the barrel body close to the power mechanism, the sewage discharge chamber is isolated from the filter screen through a baffle, the sleeve is positioned in the sewage discharge chamber, a sewage discharge hole is formed in one section of the sewage suction assembly positioned in the sewage discharge chamber, a sewage discharge port is formed in the side wall of one end of the sewage discharge chamber close to the power mechanism, and an electromagnetic valve is arranged at the sewage discharge port;
the end of the barrel, which is far away from the power mechanism, is provided with a water inlet, the side wall of the barrel is provided with a water outlet, and the water inlet and the water outlet are respectively positioned at two sides of the clapboard.
Preferably, the sewage suction assembly comprises a collecting pipe with two closed ends, a plurality of sewage suction pipes are arranged on the side surface of the collecting pipe and communicated with an inner cavity of the collecting pipe, a suction cap is arranged at one end of the sewage suction pipe, which is far away from the collecting pipe, a sewage suction hole is arranged on the end head of the suction cap, and the sewage suction hole faces to the inner surface of the filter screen;
one end of the collecting pipe, which is positioned in the sleeve, is provided with a limiting plate, the collecting pipe is connected with the baffle in a sealing and rotating way, and a section of side wall of the collecting pipe, which is positioned in the sewage discharging chamber, is provided with a sewage discharging hole.
Preferably, the dirt suction cap cover is arranged outside the dirt suction pipe and is fixedly connected with the dirt suction pipe through a screw, the dirt suction hole is a long-strip-shaped hole, and the length direction of the dirt suction hole is parallel to the gap of the filter screen.
Preferably, a central rod is arranged in the collecting pipe, and two ends of the central rod are fixedly connected with the inner wall of the end head of the collecting pipe respectively.
Preferably, two elongated limiting grooves II penetrating through the sleeve are arranged on the side wall of the sleeve, one end of each limiting groove II is communicated with the opening of the end of the sleeve, and the included angle between the two limiting grooves II is 180 degrees.
Preferably, the power mechanism comprises a motor, an output shaft of the motor is connected with a transmission shaft, and one end of the transmission shaft is fixedly connected with the sleeve; the transmission shaft is arranged in the motor base and is rotationally connected with the cylinder body through a bearing sleeve, a sealing sleeve is arranged between the bearing sleeve and the transmission shaft, and the motor is connected with the cylinder body through the motor base; the inside of motor cabinet is provided with the stop gear of restriction motor rotation direction.
Preferably, the limiting mechanism comprises a limiting nut, the limiting nut is sleeved on the transmission shaft, and an external thread matched with the internal thread of the limiting nut is arranged on the outer surface of the transmission shaft; a first limiting groove is formed in the inner wall of the motor base along the axial direction of the motor base, and a first limiting column matched with the first limiting groove is arranged on the limiting nut; travel switches are arranged on the inner wall of the motor base and are respectively positioned on two sides of the limiting nut.
Preferably, a differential pressure sensor is arranged at the water inlet and the water outlet.
A vertical full-automatic back flush filter, be provided with the transmission shaft in the motor cabinet, the outside cover of transmission shaft is equipped with limit nut, the inside of motor cabinet be provided with limit nut looks adaptation's travel switch, realize the positive and negative conversion of motor. The water inlet and the water outlet are provided with differential pressure sensors for detecting the differential pressure at the water inlet and the water outlet, so that the precipitation degree of impurities in the filter screen is judged, and the automatic cleaning of the filter screen is realized. The sewage suction pipe rotates and slides in the filter screen in a reciprocating mode, so that the filter screen can be cleaned comprehensively, non-stop cleaning can be achieved, and the working efficiency of the filter is improved. The sewage discharge chamber and the cylinder body are of a split structure, so that the installation of the sewage absorption assembly in the cylinder body is facilitated.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a vertical full-automatic backwashing filter of the present invention;
FIG. 2 is a schematic view of a sleeve structure of an embodiment of the vertical full-automatic backwash filter of the present invention;
FIG. 3 is a schematic view of a collecting pipe structure of an embodiment of the vertical full-automatic backwashing filter of the present invention;
fig. 4 is a schematic circuit diagram of an embodiment of a vertical full-automatic backwashing filter of the utility model.
Reference numerals
1. A motor; 2. a motor base; 3. a drive shaft; 4. a limit nut; 5. a limiting column; 6. a first limiting groove; 7. a bearing housing; 8. a barrel; 9. a sleeve; 10. a second limiting groove; 11. a sewage discharge chamber; 12. a baffle plate; 13. a limiting plate; 14. a limiting block; 15. a collection pipe; 16. a center pole; 17. a sewage draining hole; 18. a sewage suction pipe; 19. a suction cap; 20. a dirt suction hole; 21. a filter screen; 22. a partition plate; 23. a connecting rod; 24. a screw rod; 25. a drive nut; 26. a water inlet; 27. a water outlet; 28. a sewage draining outlet; 29. an electromagnetic valve; 30. a travel switch I; 31. and a second travel switch.
Detailed Description
Examples
Fig. 1 is a schematic structural view of an embodiment of a vertical full-automatic backwashing filter of the present invention. As shown in the figure, the vertical full-automatic backwashing filter comprises a cylinder body 8, wherein a filter screen 21 is arranged in the cylinder body 8. One end of the filter screen 21 is fixedly connected with the cylinder 8 through the baffle 12, the filter screen 21 is fixedly connected with the baffle 12 through screws, and the baffle 12 is fixedly connected with the cylinder 8 in a welding manner. The other end of the filter screen 21 is fixedly connected with the cylinder 8 through a partition plate 22, the filter screen 21 is fixedly connected with the partition plate 22 through screws, and the partition plate 22 is welded and fixed on the cylinder 8. The partition plate 22 and the baffle plate 12 are annular steel plates, so that the wastewater to be treated entering the cylinder 8 can only enter the filter screen 21 for filtering and then is discharged. The inside of filter screen 21 is provided with the soil pick-up assembly that clears up filter screen 21, and the inside of barrel 8 is provided with the shift fork sleeve assembly that drives soil pick-up assembly pivoted. And a power mechanism for driving the shifting fork sleeve assembly to rotate is arranged outside the barrel body 8.
Fig. 2 is a schematic structural view of a sleeve 9 according to an embodiment of the vertical full-automatic backwashing filter of the present invention. As shown in the figure, the shifting fork sleeve assembly comprises a sleeve 9, and one end of the sleeve 9 is fixedly connected with the power mechanism. A limiting plate 13 is arranged at one end, located inside the sleeve 9, of the sewage suction assembly, and the limiting plate 13 is of a circular structure. A limiting block 14 is arranged on the side face of the limiting plate 13, a second limiting groove 10 matched with the limiting block 14 is arranged on the side wall of the sleeve 9, and the limiting block 14 is inserted into the second limiting groove 10 and slides in the second limiting groove 10. In this embodiment, two elongated limiting grooves two 10 penetrating through the sleeve 9 are disposed on the side wall of the sleeve 9, one end of each limiting groove two 10 is communicated with an opening at the end of the sleeve 9, and an included angle between the two limiting grooves two 10 is 180 °.
The other end of the sewage suction assembly is fixedly provided with a screw rod 24, a transmission nut 2525 matched with the screw rod 24 is sleeved outside the screw rod 24, and the transmission nut 2525 is fixedly connected with the partition plate 22 through a connecting rod 23. One end of the connecting rod 23 is fixedly connected with the transmission nut 2525 by welding, and the other end is fixedly connected with the partition plate 22 by a screw. The connecting rods 23 are uniformly distributed outside the transmission nut 2525, and the number of the connecting rods 23 is 3 in the embodiment. The three connecting rods 23 form a three-jaw structure, and wastewater to be treated entering the cylinder 8 enters the filter screen 21 through gaps among the connecting rods 23.
One end of the cylinder body 8 close to the power mechanism is provided with a sewage discharge chamber 11, and the sewage discharge chamber 11 is isolated from the filter screen 21 through a baffle 12. The sewage discharging chamber 11 and the cylinder 8 provided with the filter screen 21 are of a split structure and fixedly connected through bolts, and the joint is provided with an O-shaped rubber sealing gasket for sealing, so that the installation of parts in the cylinder 8 is facilitated. The sleeve 9 is located within the waste chamber 11. A sewage draining outlet 28 is arranged on the side wall of one end of the sewage draining chamber 11 close to the power mechanism, and an electromagnetic valve 29 is arranged at the sewage draining outlet 28. The solenoid valve 29 is connected to the control unit.
Fig. 3 is a schematic structural view of a collecting pipe 15 of an embodiment of the vertical full-automatic backwashing filter of the present invention. As shown in the drawings, the dirt suction assembly includes a collecting pipe 15 with two closed ends, and the collecting pipe 15 may be a closed pipe structure with two closed ends through a plate material. A plurality of sewage suction pipes 18 are arranged on the side surface of the collecting pipe 15. The sewage suction pipe 18 is fixedly connected with the collecting pipe 15 in a welding mode, and the sewage suction pipe 18 is communicated with the inner cavity of the collecting pipe 15. One end of the sewage suction pipe 18, which is far away from the collecting pipe 15, is provided with a sewage suction cap 19, the end of the sewage suction cap 19 is provided with a sewage suction hole 20, and the sewage suction hole 20 faces the inner surface of the filter screen 21. Inhale cap 19 cover and establish in the outside of soil pick-up pipe 18 and through screw and soil pick-up pipe 18 fixed connection, soil pick-up hole 20 is rectangular shape hole, and the length direction in soil pick-up hole 20 is parallel with the gap of filter screen 21, is convenient for inhale soil pick-up pipe 18 in through soil pick-up hole 20 with the impurity of adhesion on the filter screen 21 in then collect in collecting pipe 15.
The collecting pipe 15 is connected with the baffle 12 in a sealing and rotating way, so that the wastewater in the filter screen 21 is prevented from entering the sewage discharge chamber 11. The sealing rotation connection mode can meet the requirement by selecting the existing structure, for example, the bearing is adopted to rotate and connect, and the two ends of the bearing are provided with the rubber sealing rings for sealing. The limit plate 13 is fixedly arranged at one end of the collecting pipe 15 positioned in the sleeve 9. A section of side wall of the collecting pipe 15 in the sewage discharging chamber 11 is provided with a sewage discharging hole 17, and the sewage discharging hole 17 is communicated with a cavity in the collecting pipe 15. The sewage draining holes 17 are two, and the included angle between the two sewage draining holes 17 is 180 degrees.
A central rod 16 is arranged in the collecting pipe 15, and two ends of the central rod 16 are fixedly connected with the inner wall of the end head of the collecting pipe 15 through screws. The central rod 16 is used for improving the strength of the collecting pipe 15 and avoiding the serious deformation of the collecting pipe 15 in the rotating process from influencing the use.
The power mechanism comprises a motor 1, an output shaft of the motor 1 is fixedly connected with a transmission shaft 3, and one end of the transmission shaft 3 is fixedly connected with a sleeve 9. The transmission shaft 3 is arranged in the motor base 2, and the transmission shaft 3 is connected with the cylinder body 8 through the bearing sleeve 7. The transmission shaft 3 is rotatably connected with the bearing sleeve 7 through a bearing, the bearing sleeve 7 is sleeved outside the bearing, and the bearing sleeve 7 is fixedly connected with the barrel 8 through a bolt. Be provided with the seal cover between bearing housing 7 and the transmission shaft 3, the seal cover is fixed on bearing housing 7, seals through the seal cover between bearing housing 7 and the transmission shaft 3, avoids the sewage in the blowdown room 11 to enter into in the motor cabinet 2. Motor 1 is connected with barrel 8 through motor cabinet 2, and the both ends of motor cabinet 2 are respectively through bolt and motor 1 casing and barrel 8 fixed connection.
The inside of motor cabinet 2 is provided with the stop gear of restriction motor 1 rotation direction. Stop gear includes stop nut 4, and stop nut 4 cover is established on transmission shaft 3, is provided with the external screw thread with stop nut 4's internal thread looks adaptation on the surface of transmission shaft 3. The inner wall of the motor base 2 is provided with a first elongated limiting groove 6 along the axial direction, and the first limiting groove 6 can be one or multiple and is distributed in parallel with the first limiting grooves 6. And a limiting column 5 matched with the first limiting groove 6 is arranged on the limiting nut 4, and the limiting column 5 is welded and fixed on the limiting nut 4. The limiting column 5 is inserted in the limiting groove I6 and slides along the limiting groove I6, and provides a guiding effect for the movement of the limiting nut 4 on the transmission shaft 3. The inner wall of the motor base 2 is provided with a travel switch I30 and a travel switch II 31, and the travel switch I30 and the travel switch II 31 are respectively positioned on two sides of the limit nut 4. The first travel switch 30, the second travel switch 31 and the motor 1 are all connected with the control unit.
A water inlet 26 is arranged at one end of the cylinder 8 far away from the power mechanism, a water outlet 27 is arranged on the side wall of the cylinder 8, and the water inlet 26 and the water outlet 27 are respectively positioned at two sides of the partition plate 22. And a differential pressure sensor is arranged at the water inlet 26 and the water outlet 27 and is electrically connected with the control unit. Impurities in water are precipitated on the filter screen 21 to generate pressure difference, the pressure difference between the water inlet 26 and the water outlet 27 is detected through the pressure difference sensor, and when the pressure difference reaches a set value, the motor 1 starts to work under the action of the control unit to drive the sewage suction assembly to clean the filter screen 21.
Fig. 4 is a schematic circuit diagram of an embodiment of a vertical full-automatic backwashing filter of the utility model. As shown in the figure, when the differential pressure sensor detects that the differential pressure reaches a set value, the control unit controls the motor 1 to start working, meanwhile, the electromagnetic valve 29 is opened, the motor 1 drives the sleeve 9 to synchronously rotate through the transmission shaft 3, the sleeve 9 drives the collecting pipe 15 to synchronously rotate through the limiting block 14 and the second limiting groove 10, the collecting pipe 15 drives the lead screw 24 to synchronously rotate, the lead screw 24 is meshed with the transmission nut 2525, the lead screw 24 slides along the transmission nut 2525, the lead screw 24 drives the collecting pipe 15 and the sewage suction pipe 18 to rotate and slide on the inner surface of the filter screen 21, the filter screen 21 is cleaned, the limiting block 14 slides along the second limiting groove 10, and the movement of the collecting pipe 15 is. The water pressure in the filter screen 21 is large, the pressure in the sewage discharge chamber 11 is small, and under the action of the pressure difference, impurities adhered to the filter screen 21 enter the sewage suction pipe 18 through the sewage suction hole 20, are discharged from the sewage discharge hole 17 through the collecting pipe 15, enter the sewage discharge chamber 11, and are discharged through the sewage discharge outlet 28. The transmission shaft 3 is meshed with the limit nut 4, the limit nut 4 slides on the transmission shaft 3 along the first limit groove 6, when the limit nut 4 touches the first travel switch 30(XK1), the motor 1 rotates reversely under the action of the control unit, and the sleeve 9 drives the collecting pipe 15 and the sewage suction pipe 18 to move reversely; when the limit nut 4 touches the second travel switch 31(XK2), the control unit controls the motor 1 to rotate forward, and the sleeve 9 drives the collecting pipe 15 and the sewage suction pipe 18 to move forward; the cleaning of the inner surface of the filter screen 21 is thus repeatedly performed. After the filter screen 21 is cleaned, the differential pressure between the differential pressure sensor at the water inlet 26 and the differential pressure sensor at the water outlet 27 is reduced and fed back to the control unit, and the motor 1 stops working to wait for the next cleaning work.
Therefore, the utility model adopts the above structure vertical full-automatic back flush filter can carry out online self-cleaning to the filter screen, improves the work efficiency of filter.
The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.
Claims (8)
1. The utility model provides a vertical full-automatic back flush filter which characterized in that: the filter screen is arranged in the barrel, one end of the filter screen is fixedly connected with the barrel through a baffle, and the other end of the filter screen is fixedly connected with the barrel through a partition plate;
a dirt suction assembly for cleaning the filter screen is arranged in the filter screen, a shifting fork sleeve assembly for driving the dirt suction assembly to rotate is arranged in the barrel, and a power mechanism for driving the shifting fork sleeve assembly to rotate is arranged outside the barrel;
the shifting fork sleeve assembly comprises a sleeve, one end of the sleeve is fixedly connected with the power mechanism, one end of the dirt suction assembly, which is positioned in the sleeve, is provided with a limiting plate, the side surface of the limiting plate is provided with a limiting block, the side wall of the sleeve is provided with a limiting groove II matched with the limiting block, and the limiting block is inserted in the limiting groove II;
the other end of the sewage suction assembly is provided with a screw rod, a transmission nut matched with the screw rod is sleeved outside the screw rod, and the transmission nut is fixedly connected with the partition plate through a connecting rod;
a sewage discharge chamber is arranged at one end of the barrel body close to the power mechanism, the sewage discharge chamber is isolated from the filter screen through a baffle, the sleeve is positioned in the sewage discharge chamber, a sewage discharge hole is formed in one section of the sewage suction assembly positioned in the sewage discharge chamber, a sewage discharge port is formed in the side wall of one end of the sewage discharge chamber close to the power mechanism, and an electromagnetic valve is arranged at the sewage discharge port;
the end of the barrel, which is far away from the power mechanism, is provided with a water inlet, the side wall of the barrel is provided with a water outlet, and the water inlet and the water outlet are respectively positioned at two sides of the clapboard.
2. The vertical full-automatic backwashing filter of claim 1, wherein: the sewage suction assembly comprises a collecting pipe with two closed ends, a plurality of sewage suction pipes are arranged on the side surface of the collecting pipe and communicated with an inner cavity of the collecting pipe, a suction cap is arranged at one end of the sewage suction pipe, which is far away from the collecting pipe, a sewage suction hole is arranged on the end head of the suction cap, and the sewage suction hole faces to the inner surface of the filter screen;
one end of the collecting pipe, which is positioned in the sleeve, is provided with a limiting plate, the collecting pipe is connected with the baffle in a sealing and rotating way, and a section of side wall of the collecting pipe, which is positioned in the sewage discharging chamber, is provided with a sewage discharging hole.
3. The vertical full-automatic backwashing filter of claim 2, wherein: the suction cap cover is arranged outside the sewage suction pipe and is fixedly connected with the sewage suction pipe through screws, the sewage suction hole is a long-strip-shaped hole, and the length direction of the sewage suction hole is parallel to the gap of the filter screen.
4. The vertical full-automatic backwashing filter of claim 2, wherein: a central rod is arranged in the collecting pipe, and two ends of the central rod are fixedly connected with the inner wall of the end head of the collecting pipe respectively.
5. The vertical full-automatic backwashing filter of claim 1, wherein: two elongated limiting grooves II penetrating through the sleeve are formed in the side wall of the sleeve, one end of each limiting groove II is communicated with the opening of the end of the sleeve, and the included angle between the two limiting grooves II is 180 degrees.
6. The vertical full-automatic backwashing filter of claim 1, wherein: the power mechanism comprises a motor, an output shaft of the motor is connected with a transmission shaft, and one end of the transmission shaft is fixedly connected with the sleeve; the transmission shaft is arranged in the motor base and is rotationally connected with the cylinder body through a bearing sleeve, a sealing sleeve is arranged between the bearing sleeve and the transmission shaft, and the motor is connected with the cylinder body through the motor base; the inside of motor cabinet is provided with the stop gear of restriction motor rotation direction.
7. The vertical full-automatic backwashing filter of claim 6, wherein: the limiting mechanism comprises a limiting nut, the limiting nut is sleeved on the transmission shaft, and an external thread matched with the internal thread of the limiting nut is arranged on the outer surface of the transmission shaft; a first limiting groove is formed in the inner wall of the motor base along the axial direction of the motor base, and a first limiting column matched with the first limiting groove is arranged on the limiting nut; travel switches are arranged on the inner wall of the motor base and are respectively positioned on two sides of the limiting nut.
8. The vertical full-automatic backwashing filter of claim 1, wherein: and a differential pressure sensor is arranged at the water inlet and the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021284979.7U CN212575749U (en) | 2020-07-03 | 2020-07-03 | Vertical full-automatic back flush filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021284979.7U CN212575749U (en) | 2020-07-03 | 2020-07-03 | Vertical full-automatic back flush filter |
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| Publication Number | Publication Date |
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| CN212575749U true CN212575749U (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021284979.7U Active CN212575749U (en) | 2020-07-03 | 2020-07-03 | Vertical full-automatic back flush filter |
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| CN (1) | CN212575749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304524A (en) * | 2021-05-26 | 2021-08-27 | 中国农业大学 | Self-cleaning net type filter for micro-irrigation and structure optimization design method thereof |
-
2020
- 2020-07-03 CN CN202021284979.7U patent/CN212575749U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304524A (en) * | 2021-05-26 | 2021-08-27 | 中国农业大学 | Self-cleaning net type filter for micro-irrigation and structure optimization design method thereof |
| CN113304524B (en) * | 2021-05-26 | 2022-06-28 | 中国农业大学 | Self-cleaning net type filter for micro-irrigation and structure optimization design method thereof |
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