Anti-clogging laminated filter and method of use thereof

Abstract

The invention discloses an anti-blocking laminated filter and a use method thereof, and relates to the technical field of intelligent agricultural irrigation filtration. The invention aims to solve the problem that silt particles cannot be effectively cleaned in a backwashing mode when a laminated filter is seriously blocked. Whether the laminations are blocked or not is judged according to the pressure difference value of the water inlet pipe and the water outlet pipe, the electric push rod is controlled to loosen and clamp the laminations, and the rotation direction and the step number of the ball screw are controlled to adjust movement of the brush; it is guaranteed that under the condition that the laminations are blocked, when back washing is started, the laminations are expanded, the brushes can stretch into the laminations to wash the laminations along with rotation of the ball screw, the structure can be restored when the laminations are not blocked and are changed into a filtering mode, the filtering effect is guaranteed, the automatic adjusting capacity is achieved, and the blocked laminations can be effectively and automatically washed.

Description

Technical Field

[0001] The invention belongs to the technical field of smart agricultural irrigation filtration, and in particular relates to filter laminations. Background Art

[0002] A filter is a device or apparatus used to separate solid particles, impurities in liquids or gases. It filters, separates or captures solid particles, suspended matter, impurities, etc. in the fluid through the laminated plates in the filter, thereby achieving the purpose of purifying, filtering or separating the fluid.

[0003] In agricultural production, impurities and particles in the water will clog the laminations during long-term use of the filter, so the laminations in the filter need to be flushed regularly, and the flushing of the filter has always been the main problem affecting the efficiency of the filter. The existing agricultural irrigation sediment filter equipment on the market often uses a fully automatic backwashing lamination filter, which removes impurities and dirt accumulated in the filter by flushing the filter with reverse water flow.

[0004] There are many backwashing disc filters for agricultural irrigation sediment filtration, such as:

[0005] 1. By designing the backwash valve and backwash system, changing the frequency and water pressure to enhance the backwash effect. However, when the stack is seriously blocked, the flushing effect is not ideal even if the water flow is changed in the extremely small gap between the stacks, and the problem of stack blockage cannot be effectively solved.

[0006] 2. By using a fixed frame, the stacked laminations in the fixed frame and the driving module, the laminations to be cleaned enter the sealed cavity formed between the water blocking plate and the filter housing, the stacked laminations are no longer under pressure, and there is a certain gap between the laminations. The laminations are squeezed into the water blocking plate by the driving module, and the gap between the laminations becomes smaller, increasing the water pressure between the laminations, thereby increasing the speed of the flushing water flow in the laminations, and improving the cleaning effect of the laminations. However, it still fails to act directly on the seriously blocked laminations, and cannot effectively solve the serious blockage problem.

[0007] 3. Use multiple filter devices in series to improve filtration efficiency, that is, when one part of the filter is backwashed after being blocked, the other part of the filter is in filtering mode. However, if the filter is seriously blocked, connecting multiple filters in series will not affect the work, but the backwashing effect is still poor, and manual cleaning is still required after blockage, which solves the problem at the cost of increasing the number of filters.

[0008] There are also many designs for filters in some existing public patent documents, such as: CN202322593098.3 A filter element skeleton, filter assembly and filter of a laminated filter, focusing on changing the skeleton structure, without describing the laminate. CN202221140727.6 A laminated automatic cleaning filter, focusing on enhancing the backwashing effect, without improving the laminate gap. CN202222312107.2 A laminated filter, focusing on changing the laminate flow channel, without describing the poor clogging effect during backwashing. CN201911211434.5 A hydraulically controlled variable precision laminated filter and its operating process, focusing on changing the laminate gap and the laminate working area, without effectively dealing with the laminate clogging area. CN202311606098.0 A segmented self-cleaning laminated filter and method of use, focusing on the laminate structure and squeezing the laminate for backwashing, which is not enough to effectively clean severely clogged laminates.

[0009] In summary, when the filter stack is seriously clogged, it is impossible to effectively flush out the sediment in the stack and achieve a good backwashing effect, and the stack may even need to be disassembled for manual scrubbing. Therefore, the anti-clogging problem of the stacked filter has not been effectively solved. Summary of the invention

[0010] The present invention aims to solve the problem that when a laminated filter is seriously clogged, a backwashing mode cannot effectively clean away the sediment particles. An anti-clogging laminated filter and a method for using the same are provided.

[0011] The anti-clogging laminated filter comprises: a housing 1 and a filter element part located inside the housing 1, wherein the filter element part comprises: a plurality of laminates 5, at least three laminate support rods 8, a ball screw 11, a ball nut 12, a stepping motor 13, at least one brush support rod 15, at least one electrically controlled rotating shaft 16, a rotating shaft drive assembly and a hinge drive assembly, wherein the number of the brush support rods 15 is the same as the number of the electrically controlled rotating shafts 16;

[0012] The at least three lamination support rods 8 are evenly arranged around the shell 1 in a circular arrangement, the multiple laminations 5 are arranged in layers and are simultaneously sleeved on all the lamination support rods 8, a sealed cavity is provided on the upper part of the uppermost lamination 5, the top ends of all the lamination support rods 8 extend into the sealed cavity, and an electric push rod 9 is provided on the top end of each lamination support rod 8, and the electric push rod 9 makes all the laminations 5 fit tightly when contracted; the stepper motor 13 is located inside the sealed cavity, the rotating shaft of the stepper motor 13 passes through the bottom of the sealed cavity and is coaxially fixedly connected with the ball screw 11, the ball nut 12 is sleeved on the ball screw 11, and when the stepper motor 13 is started, the ball nut 12 can be moved axially along the ball screw 11, and an electromagnetic locking mechanism is provided on the ball nut 12, and the electromagnetic locking mechanism is used to lock the ball nut 12 on the ball screw 11;

[0013] The upper end surface of the ball nut 12 is hinged to the end of the brush support rod 15, the head end of the brush support rod 15 is hinged to one end of the electric control rotating shaft 16, a brush 17 is provided at the other end of the electric control rotating shaft 16, the end of the brush 17 is connected to a stacked sheet 18, a limit rebound device is provided between the brush support rod 15 and the electric control rotating shaft 16, in the free state of the limit rebound device, the angle between the brush support rod 15 and the electric control rotating shaft 16 is an obtuse angle, and when the limit rebound device limits the minimum angle between the brush support rod 15 and the electric control rotating shaft 16, the electric control rotating shaft 16 and the ball screw 11 form a right angle;

[0014] The hinge driving assembly is used to drive the hinge between the upper end surface of the ball nut 12 and the brush support rod 15, thereby adjusting the angle of the brush support rod 15; the shaft driving assembly is used to drive the electric control rotating shaft 16 to rotate;

[0015] The water inlet 6 on the shell 1 is connected to the internal space formed by all the laminates 5 , and the water outlet 7 on the shell 1 is connected to the external space of the laminates 5 .

[0016] Furthermore, the sealed cavity comprises: a shell cover 2 and a pressing plate 3;

[0017] The shell cover 2 is a hemispherical cavity, and the opening of the shell cover 2 is connected to one side of the pressing plate 3 , and the other side of the pressing plate 3 is adjacent to the uppermost laminate 5 .

[0018] Furthermore, the anti-clogging laminated filter further comprises a base 4, and the base 4 is fixed to the bottom of the inner side of the housing 1;

[0019] The plurality of laminates 5 are all located on the base 4;

[0020] The water inlet 6 is connected to the internal space formed by all the laminates 5 through a pipeline and through the base 4;

[0021] The end of the ball screw 11 is rotatably disposed on the base 4 via a screw seat 14 .

[0022] Furthermore, the number of the brush support rods 15 is at least three.

[0023] All brush support rods 15 are evenly arranged in a circular ring around the ball screw 11 .

[0024] Furthermore, the brush 17 is cylindrical, and the stacked sheet expansion sheet 18 is rectangular.

[0025] Furthermore, the anti-clogging laminated filter further includes: a Hall sensor 10 , and the Hall sensor 10 is used to detect the position of the ball nut 12 on the ball screw 11 .

[0026] Furthermore, the electromagnetic locking mechanism comprises: a housing 19 and an electromagnet 20;

[0027] The housing 19 is sleeved on the outside of the ball nut 12 , and the electromagnet 20 is located between the housing 19 and the ball nut 12 .

[0028] The method for using the anti-clogging laminated filter comprises:

[0029] In the unblocked state:

[0030] The electric push rod 9 is driven to contract so that all the laminates 5 are closely fitted, and the liquid to be filtered is released to enter the internal space surrounded by all the laminates 5 through the water inlet 6, so that the liquid to be filtered permeates through the laminates 5 to achieve filtration;

[0031] In the blocked state:

[0032] Start the electric push rod 9 to extend so that the stack 5 is relaxed, start the stepper motor 13 to adjust the ball nut 12 to the target position and then stop, so that the stack expansion piece 18 is aligned with the stack gap to be cleaned, start the hinge drive assembly to drive the brush support rod 15 to expand in the direction away from the ball screw 11 and then stop, so that the stack expansion piece 18 contacts the corresponding gap, start the stepper motor 13 to drive the ball nut 12 to move upward, so that the stack expansion piece 18 can be inserted into the corresponding gap, when the brush 17 is in the gap, start the electromagnetic locking mechanism to allow the ball nut 12 to rotate with the ball screw 11, and at the same time, start the shaft drive assembly to drive the electric control rotating shaft 16 to start rotating, so as to achieve cleaning of the gap.

[0033] Furthermore, the method for using the anti-clogging laminated filter further includes:

[0034] When the liquid overflows from the inner space of the laminate 5 to the outer space, the water outlet 7 is released to allow the filtered liquid to be discharged.

[0035] Furthermore, the method for using the anti-clogging laminated filter further includes:

[0036] When the cleaning is completed, the stepper motor 13 and the shaft drive assembly are turned off.

[0037] The hinge driving assembly is started to drive the brush support rod 15 to reset, so that the stacked opening piece 18 is separated from the gap, and the relative position between the brush support rod 15 and the electric control rotating shaft 16 is reset under the action of the limit rebound device.

[0038] The anti-clogging laminated filter and the use method thereof of the present invention have the following beneficial effects:

[0039] The present invention determines whether the stack is blocked by the pressure difference between the water inlet pipe and the water outlet pipe, controls the electric push rod to loosen and clamp the stack, and controls the rotation direction and number of steps of the ball screw to adjust the movement of the brush, to ensure that when the backwash is turned on in the case of stack blockage, the stacks are stretched open and the brush can be inserted, and then the stack is washed as the ball screw rotates, and the structure can be restored when it is changed back to the filtering mode when it is not blocked, to ensure the filtering effect, and has automatic adjustment capability, and can effectively and automatically wash the blocked stack. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The overall structure diagram of the anti-clogging laminated filter;

[0041] Figure 2 for Figure 1 A cross-sectional view of

[0042] Figure 3 The internal structure plan of the anti-clogging laminated filter;

[0043] Figure 4 A three-dimensional diagram of the internal structure of the anti-clogging laminated filter;

[0044] Figure 5 is a cross-sectional view of an electromagnetic locking mechanism;

[0045] Figure 6 is a schematic diagram of an electromagnetic locking mechanism;

[0046] Shell 1, shell cover 2, pressure plate 3, base 4, stack 5, water inlet 6, water outlet 7, stack support rod 8, electric push rod 9, Hall sensor 10, ball screw 11, ball nut 12, stepper motor 13, screw seat 14, brush support rod 15, electric control rotating shaft 16, brush 17, stack support plate 18, shell 19, electromagnet 20, anti-slip rubber 21, buffer rubber 22, bolt 23. DETAILED DESCRIPTION

[0047] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0048] Specific implementation method 1: refer to Figures 1 to 6 Specifically describing this embodiment, the anti-clogging laminated filter described in this embodiment includes: a shell 1 and a filter element part located inside the shell 1, and the filter element part includes: a shell cover 2, a pressure plate 3, a base 4, a plurality of laminates 5, at least three laminate support rods 8, a ball screw 11, a ball nut 12, a screw seat 14, a brush support rod 15, an electrically controlled rotating shaft 16, a brush 17 and a laminate support plate 18.

[0049] The base 4 is fixed to the bottom of the housing 1, all the lamination support rods 8 are vertically fixed to the base 4, the ball screw 11 is rotatably arranged on the base 4 through the screw seat 14, and all the lamination support rods 8 are evenly arranged around the ball screw 11 in a circle with the ball screw 11 as the center. An electric push rod 9 is provided at the top of each lamination support rod 8.

[0050] The pressing plate 3 and the plurality of laminations 5 are arranged in layers and are simultaneously sleeved on all lamination support rods 8, and the pressing plate 3 is located at the top layer of all laminations 5. The shell cover 2 is covered on the pressing plate 3 and a cavity is formed between the two, and the stepper motor 13 and the electric push rod 9 are both located inside the cavity. The output shaft of the stepper motor 13 passes through the pressing plate 3 and is coaxially connected to the ball screw 11 through a coupling. The extended end of the electric push rod 9 can push the pressing plate 3 to move up and down when it is extended or retracted. When the electric push rod 9 drives the pressing plate 3 to move up and down, it can drive all laminations 5 to relax or press each other.

[0051] The ball nut 12 cooperates with the ball screw 11 to form a ball screw structure, so that when the stepping motor 13 drives the ball screw 11 to rotate, the ball nut 12 can move axially along the ball screw 11. The ball nut 12 is provided with an electromagnetic locking mechanism for locking the ball nut 12 on the ball screw 11.

[0052] The electromagnetic locking mechanism includes a housing 19, an electromagnet 20, an anti-skid rubber 21, a buffer rubber 22 and a bolt 23; the housing 19 is sleeved on the outside of the ball nut 12, and the electromagnet 20 is located between the housing 19 and the ball nut 12. Specifically, an anti-skid rubber 21 is installed between the upper half of the housing 19 and the ball nut 12, and a mounting groove is designed on the inner side wall of the housing 19. There is a layer of buffer rubber 22 between the mounting groove and the electromagnet 20, and the ball nut 12 is fixed to the housing 19 by a bolt 23. A plurality of brush support rods 15 are hinged on the upper end surface of the ball nut 12, and all the brush support rods 15 are arranged in a circle around the ball screw 11. The top of each brush support rod 15 is hinged to an electric control rotating shaft 16, and a limit rebound device is provided between each brush support rod 15 and the electric control rotating shaft 16. When all the limit rebound devices are in a free state, an obtuse angle is formed between the brush support rod 15 and the electric control rotating shaft 16. The limit rebound device also limits the brush support rod 15 and the electric control rotating shaft 16 to form a minimum angle, and the electric control rotating shaft 16 and the ball screw 11 are at a right angle. The end of the electric control rotating shaft 16 is connected to a brush 17. The brush 17 is cylindrical, and the end of the brush 17 is connected to a laminated opening piece 18. The laminated opening piece 18 is a rectangular sheet.

[0053] The water inlet 6 on the shell 1 is connected to the internal space of the laminate 5, and the water outlet 7 on the shell 1 is connected to the external space of the laminate 5. When the electric push rod 9 is retracted to the shortest, the pressure plate 3 can press all the laminates 5 to fit tightly. After the water to be filtered enters the internal space of the laminate 5 through the water inlet 6 and overflows, it permeates through the laminate 5 and overflows to the external space of the laminate 5 and is discharged through the water outlet 7 to achieve filtration. When the laminate is blocked during filtration, the electric push rod 9 is adjusted to extend and the shell cover 2 is pushed up, so that the sealed cavity is pushed up, and the pressure plate 3 no longer applies pressure to the laminate.

[0054] The working principle of this implementation is as follows:

[0055] In application, when filtering is required, the Hall sensor 10 is used to determine whether the ball nut 12 has reached the target position. When the ball nut 12 reaches the target position, the hinge between the ball nut 12 and the brush support rod 15 is driven to expand the brush support rod 15 outward and to make the laminated opening piece 18 abut against the gap between the laminated sheets 5. At this time, the ball nut 12 is driven to move upward, and the angle between the brush support rod 15 and the electric control rotating shaft 16 is compressed, so that the laminated opening piece 18 can extend into the gap between the two laminated sheets 5. At the same time, the electric control rotating shaft 16 is driven to rotate, so that the laminated opening piece 18 rotates to open the two laminated sheets, and at the same time drives the brush 17 to extend into the gap for cleaning. Furthermore, since the ball nut 12 is provided with a locking electromagnetic locking mechanism, the mechanism is activated so that the ball nut 12 and the ball screw 11 are fixed to each other, and the stepper motor 13 is used to drive the ball screw 11 and the ball nut 12 to rotate, so that the brush can rotate together to achieve brushing of the gap between the two laminates 5. When the cleaning is completed, the ball nut 12 moves downward, and under the action of the limit rebound device, the laminate expansion piece 18 can be separated from the gap between the two laminates 5 and restored to its original state. By analogy, the cleaning work of all laminates 5 is achieved, and the problem of filter laminate clogging is effectively prevented. Finally, the hinge between the ball nut 12 and the brush support rod 15 is driven to retract the brush support rod 15 inward, so that the laminate expansion piece 18 is separated from the inner wall of the laminate 5.

[0056] In this embodiment, the electromagnetic locking mechanism uses a relay to control the start and stop of the electromagnet to achieve the clamping and release of the ball nut 12 and the ball screw 11.

[0057] Specific embodiment 2: This embodiment is a method for using the anti-clogging laminated filter described in specific embodiment 1, comprising:

[0058] In the unblocked state:

[0059] The electric push rod 9 is driven to contract so that all the laminates 5 fit tightly together, and the liquid to be filtered is released to enter the internal space enclosed by all the laminates 5 through the water inlet 6, so that the liquid to be filtered permeates through the laminates 5 to achieve filtration. When the liquid overflows from the internal space of the laminate 5 to the external space, the water outlet 7 is released to discharge the filtered liquid.

[0060] In the blocked state:

[0061] Start the electric push rod 9 to extend so that the laminate 5 is relaxed;

[0062] The stepper motor 13 is started to adjust the ball nut 12 to the target position and then stopped, so that the stacking opening piece 18 is aligned with the stacking gap to be cleaned;

[0063] The hinge driving assembly is started to drive the brush support rod 15 to expand and then stop, so that the stacked sheet opening piece 18 contacts the corresponding gap;

[0064] Starting the stepping motor 13 so that the stacking opening piece 18 can be inserted into the corresponding gap;

[0065] When the brush 17 is located in the gap, the electromagnetic locking mechanism is activated so that the ball nut 12 can rotate with the ball screw 11; at the same time, the shaft driving assembly is activated to drive the electric control rotating shaft 16 to start rotating, so as to clean the gap;

[0066] When the cleaning is completed, the stepper motor 13 and the shaft drive assembly are turned off;

[0067] The hinge driving assembly is started to drive the brush support rod 15 to reset, so that the stacked opening piece 18 is separated from the gap, and the relative position between the brush support rod 15 and the electric control rotating shaft 16 is reset under the action of the limit rebound device.

[0068] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in conjunction with a single embodiment may be used in other described embodiments.

Claims

1. Anti-clogging laminated filter, including: A housing (1) and a filter element portion located inside the housing (1), characterized in that the filter element portion comprises: a plurality of laminations (5), at least three lamination support rods (8), a ball screw (11), a ball nut (12), a stepper motor (13), at least one brush support rod (15), at least one electrically controlled rotating shaft (16), a rotating shaft drive assembly and a hinge drive assembly, wherein the number of the brush support rods (15) is the same as the number of the electrically controlled rotating shafts (16); The at least three laminate support rods (8) are evenly arranged in a circular arrangement around the shell (1); the plurality of laminates (5) are arranged in layers and are simultaneously sleeved on all the laminate support rods (8); a sealed cavity is provided on the upper part of the uppermost laminate (5); the top ends of all the laminate support rods (8) extend into the sealed cavity; and an electric push rod (9) is provided on the top end of each laminate support rod (8); when the electric push rod (9) is retracted, all the laminates (5) are tightly fitted; the stepping motor (13) is located at Inside the sealed cavity, the rotating shaft of the stepper motor (13) passes through the bottom of the sealed cavity and is coaxially fixedly connected to the ball screw (11); the ball nut (12) is sleeved on the ball screw (11); when the stepper motor (13) is started, the ball nut (12) can move axially along the ball screw (11); an electromagnetic locking mechanism is provided on the ball nut (12), and the electromagnetic locking mechanism is used to lock the ball nut (12) on the ball screw (11); The upper end surface of the ball nut (12) is hinged to the end of the brush support rod (15), the head end of the brush support rod (15) is hinged to one end of the electric control rotating shaft (16), the other end of the electric control rotating shaft (16) is provided with a brush (17), the end of the brush (17) is connected with a stacked sheet (18), a limit rebound device is provided between the brush support rod (15) and the electric control rotating shaft (16), in the free state of the limit rebound device, the angle between the brush support rod (15) and the electric control rotating shaft (16) is an obtuse angle, and when the limit rebound device limits the minimum angle between the brush support rod (15) and the electric control rotating shaft (16), the electric control rotating shaft (16) and the ball screw (11) form a right angle; The hinge drive assembly is used to drive the hinge between the upper end surface of the ball nut (12) and the brush support rod (15), thereby adjusting the angle of the brush support rod (15); the shaft drive assembly is used to drive the electrically controlled rotating shaft (16) to rotate; The water inlet (6) on the shell (1) is connected to the internal space formed by all the laminates (5), and the water outlet (7) on the shell (1) is connected to the external space of the laminates (5).

2. The anti-clogging laminated filter according to claim 1, characterized in that: The sealed cavity comprises: a shell cover (2) and a pressing plate (3); The shell cover (2) is a hemispherical cavity, the opening of the shell cover (2) is connected to one side of the pressing plate (3), and the other side of the pressing plate (3) is adjacent to the uppermost laminate (5).

3. The anti-clogging laminated filter according to claim 1, characterized in that: It also includes a base (4), wherein the base (4) is fixed to the bottom of the inner side of the shell (1); The plurality of laminates (5) are all seated on the base (4); The water inlet (6) is connected to the internal space formed by all the laminates (5) through a pipeline and through the base (4); The end of the ball screw (11) is rotatably arranged on the base (4) via a screw seat (14).

4. The anti-clogging laminated filter according to claim 1, characterized in that: The number of the brush support rods (15) is at least three, All brush support rods (15) are evenly arranged in a circular ring around the ball screw (11).

5. The anti-clogging laminated filter according to claim 1, characterized in that: The brush (17) is cylindrical, and the stacked sheet expansion sheet (18) is rectangular.

6. The anti-clogging laminated filter according to claim 1, characterized in that: Also includes: A Hall sensor (10), the Hall sensor (10) being used to detect the position of the ball nut (12) on the ball screw (11).

7. The anti-clogging laminated filter according to claim 1, characterized in that: The electromagnetic locking mechanism comprises: a housing (19) and an electromagnet (20); The housing (19) is sleeved on the outside of the ball nut (12), and the electromagnet (20) is located between the housing (19) and the ball nut (12).

8. The method for using the anti-clogging laminated filter according to any one of claims 1 to 7, characterized in that: include: In the unblocked state: The electric push rod (9) is driven to contract so that all the laminates (5) are closely fitted, and the liquid to be filtered is released to enter the internal space surrounded by all the laminates (5) through the water inlet (6), so that the liquid to be filtered permeates through the laminates (5) to achieve filtration; In the blocked state: The electric push rod (9) is started to extend so that the stack (5) is relaxed, the stepper motor (13) is started to adjust the ball nut (12) to the target position and then stop, so that the stack expansion piece (18) is aligned with the stack gap to be cleaned, the hinge drive assembly is started to drive the brush support rod (15) to expand in a direction away from the ball screw (11) and then stop, so that the stack expansion piece (18) contacts the corresponding gap, the stepper motor (13) is started to drive the ball nut (12) to move upward, so that the stack expansion piece (18) can be inserted into the corresponding gap, when the brush (17) is located in the gap, the electromagnetic locking mechanism is started to allow the ball nut (12) to rotate with the ball screw (11), and at the same time, the shaft drive assembly is started to drive the electric control rotating shaft (16) to start rotating, so as to achieve cleaning of the gap.

9. The method for using the anti-clogging laminated filter according to claim 8, characterized in that: Also includes: When the liquid overflows from the internal space of the laminate (5) to the external space, the water outlet (7) is released to allow the filtered liquid to be discharged.

10. The method for using the anti-clogging laminated filter according to claim 8, characterized in that: Also includes: When the cleaning is completed, the stepper motor (13) and the shaft drive assembly are turned off. The hinge drive assembly is started to drive the brush support rod (15) to reset, so that the stacked sheet expansion sheet (18) is disengaged from the gap, and the relative position between the brush support rod (15) and the electrically controlled rotating shaft (16) is reset under the action of the position limiting rebound device.

Images