阅读说明：本技术 一种y型过滤器的滤网切换装置 (Filter screen auto-change over device of Y type filter ) 是由 施克和 林日馀 王景禾 于 2021-10-15 设计创作，主要内容包括：本发明提供了一种Y型过滤器的滤网切换装置,其特征在于,包括：输送单元,用于运输水的输送单元呈Y型；切换单元,用于切换被堵塞滤网的切换单元贯穿在所述输送单元内部；控水单元,用于控制水流状态的控水单元设于所述切换单元侧部；清洁单元,用于清洁切换后的清洁单元对称的设于所述切换单元两侧。通过位于输送单元内部正在工作的粗滤网或精滤网被堵塞时,导水管内部未经过滤一侧的水压增大,使得水压沿着管道经未被堵住的阀块进入框板内部,随后水流在框板内部通过活塞块带动往复杆移动,往复杆通过拉杆带动第一滤板、第二滤板以及第三滤板发生位置切换,从而达到了自动更换滤板的效果。(The invention provides a filter screen switching device of a Y-shaped filter, which is characterized by comprising: the conveying unit is used for conveying water and is Y-shaped; the switching unit is used for switching the blocked filter screen and penetrates through the conveying unit; the water control unit is used for controlling the water flow state and is arranged on the side part of the switching unit; and the cleaning units are used for cleaning the switched cleaning units and are symmetrically arranged on two sides of the switching unit. When being stopped up through being located inside the coarse strainer or the fine filter who is working of conveying unit, the inside water pressure increase of not filtering one side of aqueduct for water pressure gets into inside the deckle board through the valve piece that is not blockked up along the pipeline, rivers drive the reciprocating lever removal through the piston piece in the deckle board is inside afterwards, and the reciprocating lever passes through the pull rod and drives first filter plate, second filter plate and third filter plate emergence position switching, thereby has reached the effect of automatic change filter plate.)

1. A screen switching device of a Y-type filter, comprising:

the conveying unit (1) is used for conveying water, and the conveying unit (1) is Y-shaped;

the switching unit (2) is used for switching the switching unit (2) with the blocked filter screen to penetrate through the conveying unit (1);

the water control unit (3) is used for controlling the water flow state, and the water control unit (3) is arranged on the side part of the switching unit (2);

the cleaning units (5) are used for cleaning the switched cleaning units (5) and are symmetrically arranged on two sides of the switching unit (2);

the transmission unit (6) is used for controlling the cleaning sequence of the cleaning unit (5) and is arranged at the upper part of the conveying unit (1).

2. The screen changer of a Y-strainer according to claim 1, characterized in that the switch unit (2) comprises:

a frame plate (201);

a filter assembly (202) for slidably connecting the filter assembly (202) inside the frame plate (201) for filtering the water flow passing through the conveying unit (1);

the control assembly (203), the control assembly (203) used for controlling the position of the filter assembly (202) is symmetrically connected to two sides of the filter assembly (202);

the filter assembly (202) comprises a first filter plate (2021) for carrying a filter screen;

one side of the first filter plate (2021) is connected with a plurality of T-shaped blocks (2022);

a pulling plate (2023) is sleeved on the outer side of the T-shaped block (2022);

a T-shaped groove (2024) matched with the T-shaped block (2022) is arranged in the pull plate (2023);

a coarse filter screen (2026) and a fine filter screen (2025) for coarse and fine filtration are inserted in the first filter plate (2021) side by side;

a gap is arranged between the coarse filter screen (2026) and the fine filter screen (2025);

the other side of the first filter plate (2021) is connected with a second filter plate (2027) and a third filter plate (2028) for standby in sequence.

3. A sieve switching device of a Y-filter according to claim 2, wherein said control unit (203) comprises:

one end of the reciprocating rod (2031) is connected to the side part of the pulling plate (2023);

a piston block (2032) for pushing the piston block (2032) of the filter assembly (202) to the other end of the reciprocating rod (2031);

the periphery of the piston block (2032) is attached to the inner wall of the frame plate (201);

one side of the piston block (2032) opposite to the reciprocating rod (2031) is connected with two groups of limiting blocks (20321);

a first cutting block (2033) for controlling the water control unit (3) to open is connected to the joint of the lateral part of the reciprocating rod (2031) and the pulling plate (2023);

and a second cutting block (2034) for controlling the water control unit (3) to close is connected to the joint of the lateral part of the reciprocating rod (2031) and the piston block (2032).

4. The screen changer of a Y-strainer according to claim 1, characterized in that the water control unit (3) comprises:

a valve block (301);

a pipe (302) connected to the pipes (302) on both sides of the valve block (301) for introducing water inside the delivery unit (1) into the switching unit (2);

the thrust rod (303) is used for controlling the thrust rod (303) in the closed state in the pipeline (302) to be inserted in the valve block (301) in a sliding manner;

a guide block (304) which is used for inserting the guide block (304) for guiding the thrust rod (303) into the side wall of the frame plate (201);

and the adjusting block (305) is used for linking the switching unit (2) with the water control unit (3).

5. The device for switching the filter screen of a Y-shaped filter is characterized in that a through groove for penetrating through a reciprocating rod (2031) is formed inside the adjusting block (305), and a second bevel angle (3052) matched with the inclination of the second cutting block (2034) and a first bevel angle (3051) matched with the inclination of the first cutting block (2033) are respectively formed on the opposite corners of the through groove.

6. A sieve switching device of a Y-filter according to claim 1, wherein said transmission unit (6) comprises:

a swing assembly (601);

the water containing assembly (602), the water containing assembly (602) is arranged between the swing assembly (601) and the conveying unit (1);

the swing assembly (601) comprises:

a second drive assembly (6011);

the transmission mechanism (6012) is rotatably connected to the side part of the second driving assembly (6011);

a switching lever (6013) for adjusting the cleaning sequence of the cleaning unit (5), the switching lever (6013) engaging with the transmission mechanism (6012);

the water containing assembly (602) comprises:

a water tank (6021) for storing a cleaning liquid, the water tank (6021) being connected to an upper portion of the delivery unit (1);

guide plates (6022) for guiding the swing assembly (601) are symmetrically connected to both sides of the water tank (6021);

the two groups of the switching rods (6013) are U-shaped and are symmetrically arranged relative to the conveying unit (1);

a hole for penetrating through the switching rod (6013) is formed in the guide plate (6022);

the lower end of the guide plate (6022) is connected with a trigger switch (6023) for controlling the cleaning unit (5) to perform cleaning work.

7. A sieve switching device of a Y-filter according to claim 1, wherein said cleaning unit (5) comprises:

two sets of first driving assemblies (501) for adjusting the spraying direction of the cleaning liquid are symmetrically connected to the inner side of the switching lever (6013) with respect to the frame plate (201);

a support rod (505), wherein the support rod (505) is symmetrically arranged relative to the frame plate (201) and is connected to the side part of the switching rod (6013);

one side of the support rod (505) opposite to the frame plate (201) is rotatably connected with a cleaning brush (506) for scraping and brushing a filter screen;

the cleaning brush (506) is rod-shaped, and the length of the cleaning brush (506) is matched with the diameter of the filter screen.

8. The screen changer of a Y-filter according to claim 7, wherein a swing link (502) is rotatably connected to the first driving unit (501) relative to one side of the switch lever (6013);

one end of the swing rod (502) close to the frame plate (201) is connected with a nozzle (504) used for spraying cleaning liquid to the filter screen along a plurality of angles;

a water inlet pipe (503) for introducing the cleaning liquid in the water tank (6021) to the nozzle (504) for spraying is inserted into the swing rod (502).

9. A sieve switching device of a Y-filter according to claim 1, wherein said conveying unit (1) comprises:

a water conduit (101);

the slag collecting pipe (102) is used for connecting the slag collecting pipe (102) which is used for containing the filter residue filtered by the pipe cutting unit (2) in the conveying unit (1) to the lower part of the water guide pipe (101);

a filter accommodating groove (104) through which the filter accommodating groove (104) for positioning the switching unit (2) penetrates the water conduit (101);

the filter receiving tank (104) is disposed adjacent to the slag collection tube (102).

10. The sieve switching device of a Y-shaped filter as claimed in claim 9, wherein the slag collecting pipe (102) is arranged to be inclined along the direction of water flow, and the slag collecting pipe (102) is provided with an inclined angle at a position adjacent to the filter accommodating groove (104);

the lower end of the slag collecting pipe (102) is rotatably connected with a blocking block (103) used for releasing filter slag.

Technical Field

The invention relates to the technical field of pipeline filtration, in particular to a filter screen switching device of a Y-shaped filter.

Background

In carrying out the transportation process with the pipeline to water, in order to let the granule impurity in the water source get rid of, adopt usually to filter and handle the water source, then regularly clear up and carry out periodic change to the filter screen impurity after will filtering.

Chinese patent CN 109200647A discloses a sewage treatment device with fast switching of filter screens, which comprises a containing disc, wherein the upper surface of the containing disc is provided with a filter pipeline.

However, in the technical scheme, only one side of the filter screen can be cleaned when the filter screen is used for removing filter substances, and the filter screen is usually arranged in multiple layers, so that filter residues among multiple layers of filter screens cannot be treated in an all-around manner, and a water source cannot pass through the blocked filter screen in subsequent use; the filter plate cannot be automatically replaced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the filter screen switching device of the Y-shaped filter, the filter screens are arranged side by side, and a mode of forward flushing and then backward flushing is adopted, so that filter residues can be removed in an all-around manner during flushing, the mode of flushing outside a pipeline is adopted, cleaned impurities can be directly discharged, the filter screen is prevented from being blocked again along with the direction of water flow after cleaning, an embedded connection is adopted, the damaged filter screen is convenient to replace, and the filter screen can be automatically replaced.

In order to achieve the purpose, the invention provides the following technical scheme:

a screen switching device of a Y-type filter, comprising:

the conveying unit is used for conveying water and is Y-shaped;

the switching unit is used for switching the blocked filter screen and penetrates through the conveying unit;

the water control unit is used for controlling the water flow state and is arranged on the side part of the switching unit;

the cleaning units are used for cleaning the switched cleaning units and are symmetrically arranged on two sides of the switching unit;

and the transmission unit for controlling the cleaning sequence of the cleaning unit is arranged at the upper part of the conveying unit.

As an improvement, the switching unit includes:

a frame plate;

the filter assembly is used for filtering water flowing through the conveying unit and is connected to the inner part of the frame plate in a sliding mode;

the control assembly is used for controlling the position of the filter assembly and is symmetrically connected to the two sides of the filter assembly;

the filter assembly comprises a first filter plate for carrying a filter screen;

one side of the first filter plate is connected with a plurality of T-shaped blocks;

a pulling plate is sleeved on the outer side of the T-shaped block;

a T-shaped groove matched with the T-shaped block is formed in the pulling plate;

a coarse filter screen and a fine filter screen for coarse and fine filtration are inserted in the first filter plate side by side;

a gap is arranged between the coarse filter screen and the fine filter screen;

and the other side of the first filter plate is sequentially connected with a second filter plate and a third filter plate for standby.

As such, the control assembly includes:

one end of the reciprocating rod is connected to the side part of the pulling plate;

the piston block is used for pushing the piston block of the filter assembly to be connected to the other end of the reciprocating rod;

the periphery of the piston block is attached to the inner wall of the frame plate;

one side of the piston block, which is opposite to the reciprocating rod, is connected with two groups of limiting blocks;

a first cutting block for controlling the water control unit to open is connected to the joint of the lateral part of the reciprocating rod and the pull plate;

and a second cutting block for controlling the water control unit to close is connected to the joint of the lateral part of the reciprocating rod and the piston block.

As an improvement, the water control unit comprises:

a valve block;

the pipelines are connected to the two sides of the valve block and used for guiding water in the conveying unit into the switching unit;

the thrust rod is used for controlling the thrust rod in a closed state in the pipeline to be inserted in the valve block in a sliding manner;

the guide block is used for guiding the thrust rod and is inserted into the side wall of the frame plate;

and the adjusting block is used for linking the switching unit with the water control unit.

As an improvement, a through groove used for penetrating through the reciprocating rod is formed in the adjusting block, and a second oblique angle matched with the inclination of the second cutting block and a first oblique angle matched with the inclination of the first cutting block are respectively arranged on the opposite corners of the through groove.

As an improvement, the transmission unit comprises:

a swing assembly;

the water containing assembly is arranged between the swinging assembly and the conveying unit;

the swing assembly includes:

a second drive assembly;

the transmission mechanism is rotatably connected to the side part of the second driving assembly;

the switching rod is used for adjusting the cleaning sequence of the cleaning unit and is meshed with the transmission mechanism;

the water containing assembly comprises:

a water tank for storing a cleaning liquid is connected to an upper portion of the conveying unit;

the guide plates for guiding the swinging assembly are symmetrically connected to two sides of the water tank;

the two groups of switching rods are U-shaped and are symmetrically arranged relative to the conveying unit;

a hole for penetrating the switching rod is formed in the guide plate;

the lower end of the guide plate is connected with a trigger switch used for controlling the cleaning unit to perform cleaning work.

As an improvement, the cleaning unit includes:

two groups of first driving assemblies for adjusting the spraying direction of the cleaning liquid are symmetrically connected to the inner side of the switching rod relative to the frame plate;

the supporting rods are symmetrically arranged relative to the frame plate and are connected to the side parts of the switching rods;

one side of the support rod opposite to the frame plate is rotatably connected with a cleaning brush for scraping and brushing a filter screen;

the cleaning brush is rod-shaped, and the length of the cleaning brush is matched with the diameter of the filter screen.

As an improvement, one side of the first driving component, which is opposite to the switching rod, is rotatably connected with a swing rod;

one end of the swing rod, which is close to the frame plate, is connected with a nozzle used for spraying cleaning liquid to the filter screen along a plurality of angles;

the inside grafting of pendulum rod is used for spreading into the inlet tube that sprays to spout department with the inside cleaning solution of water tank.

As an improvement, the conveying unit includes:

a water conduit;

the slag collecting pipe is used for accommodating the filter residues filtered by the pipe cutting unit in the conveying unit and is connected to the lower part of the water guide pipe;

a filter accommodating groove for positioning the switching unit, the filter accommodating groove penetrating through the inside of the water conduit;

the filter accommodating tank is arranged adjacent to the slag collecting pipe.

As an improvement, the slag collecting pipe is arranged to be inclined along the direction of water flow, and an oblique angle is arranged at the position, adjacent to the filter accommodating groove, of the slag collecting pipe;

the lower end of the slag collecting pipe is rotatably connected with a blocking block used for releasing filter slag.

The invention has the beneficial effects that:

1. according to the invention, the second filter plate is preferentially adopted for filtering, only one valve block which is symmetrically arranged is blocked by the thrust rod, when the working coarse filter screen or fine filter screen positioned in the conveying unit is blocked, the water pressure at the side which is not filtered in the water guide pipe is increased, so that the water pressure enters the frame plate along the pipeline through the unblocked valve block, then the water flow drives the reciprocating rod to move in the frame plate through the piston block, and the reciprocating rod drives the first filter plate, the second filter plate and the third filter plate to be switched in position through the pull rod, thereby achieving the effect of automatically replacing the filter plates.

2. According to the invention, in each switching process of the filter plate, one valve block which is originally opened is closed, and meanwhile, the valve block on the other side which is symmetrical relative to the conveying unit is opened under the tangential action of the first cutting block and the first oblique angle, so that the switching direction of the following filter plate is opposite to the original direction, and the filter plate is reciprocated in this way, thereby achieving the effect of high switching speed.

3. According to the invention, the cleaning process is carried out outside the filtering device, so that the cleaned impurities can be directly discharged, and the situation that the cleaned impurities block the filter screen again along with the water flow direction is avoided.

4. According to the invention, by adopting the mode of firstly forward flushing and then backward flushing, filter residues blocked on the surface of the filter screen can be removed in an all-around manner during flushing, and the problem that the existing filtering and cleaning device can only clean a single-layer filter screen and cannot clean a double-layer filter screen comprehensively is also avoided.

5. According to the invention, the slag collecting pipe is inclined along the advancing direction of the water flow, so that the situation that the filter residue in the slag collecting pipe is brought out again when water flows is effectively prevented, the filter screen is prevented from being blocked too fast, the filter screen needs to be switched repeatedly, and the service life of the filter screen is prolonged.

6. The damaged filter plate inlaid in other filter plates is directly taken out and replaced by a new filter plate, and the process avoids the complex replacement caused by the filter screen inside the pipeline when the existing filter screen is replaced, so that the effect of replacing the damaged filter screen conveniently by adopting inlaid connection is achieved.

In conclusion, the filter plate cleaning device has the advantages that filter residues can be removed in an all-around mode during washing, impurities after cleaning can be directly discharged by adopting a mode of washing outside a pipeline, the filter screen is prevented from being blocked again along with the direction of water flow after cleaning, the damaged filter screen can be replaced conveniently by adopting embedded connection, the filter plate can be replaced automatically, and the like.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the switching unit with one side of the housing removed;

FIG. 3 is a view of the connection of the filter assembly of the present invention;

FIG. 4 is a view showing the fitting relationship between the cleaning unit and the coarse strainer according to the present invention;

FIG. 5 is an enlarged partial view of the cleaning unit with the mounting and dismounting assembly removed in accordance with the present invention;

FIG. 6 is a diagram of the engagement of the control assembly and the adjustment block of the present invention;

FIG. 7 is a diagram of the engagement of the thrust rod with the pipe in accordance with the present invention;

FIG. 8 is a diagram illustrating the relationship between the water conduit and the switching unit;

FIG. 9 is a view of the mating relationship of the frame plate and the filter assembly of the present invention;

FIG. 10 is a diagram illustrating the movement of the coarse screen cleaning according to the present invention;

FIG. 11 is a diagram showing the movement of the fine filter screen according to the present invention;

FIG. 12 is a diagram showing the state of movement of slag inside the conveying unit of the present invention.

In the figure, 1, a conveying unit; 2. a switching unit; 3. a water control unit; 4. assembling and disassembling the components; 5. a cleaning unit; 6. a transmission unit; 101. a water conduit; 102. a slag collecting pipe; 103. blocking; 104. a filter housing tank; 201. a frame plate; 202. a filter assembly; 2021. a first filter plate; 2022. a T-shaped block; 2023. pulling a plate; 2024. a T-shaped groove; 2025. fine filtering net; 2026. coarse filtration; 2027. a second filter plate; 2028. a third filter plate; 203. a control component; 2031. a reciprocating lever; 2032. a piston block; 20321. a limiting block; 2033. first dicing; 2034. second dicing; 301. a valve block; 302. a pipeline; 303. a thrust rod; 304. a guide block; 305. an adjusting block; 3051. a first bevel; 3052. a second bevel; 401. a cover plate; 402. a fastener; 403. disassembling the groove; 501. a first driving member; 502. a swing rod; 503. a water inlet pipe; 504. a spout; 505. a support bar; 506. a cleaning brush; 601. a swing assembly; 6011 a second drive assembly; 6012. a transmission mechanism; 6013. a switch lever; 602. a water containing component; 6021. a water tank; 6022. a guide plate; 6023. the switch is triggered.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

As shown in fig. 1-2, a screen switching device of a Y-filter includes:

the conveying unit 1 is used for conveying water, and the conveying unit 1 is Y-shaped;

the switching unit 2 is used for switching the switching unit 2 with the blocked filter screen to penetrate through the conveying unit 1;

the water control unit 3 is used for controlling the water flow state, and the water control unit 3 is arranged on the side part of the switching unit 2;

the cleaning units 5 are used for cleaning the switched cleaning units 5 and symmetrically arranged at two sides of the switching unit 2;

a transmission unit 6, a transmission unit 6 for controlling the cleaning sequence of the cleaning unit 5 is arranged on the upper part of the conveying unit 1.

As an improvement, as shown in fig. 2-3 and fig. 6, the switching unit 2 includes:

a frame plate 201;

a filter assembly 202 for slidably connecting the filter assembly 202 inside the frame plate 201 for filtering the water flowing through the inside of the conveying unit 1;

the control assembly 203 is used for controlling the position of the filter assembly 202, and the control assembly 203 is symmetrically connected to two sides of the filter assembly 202;

the filter assembly 202 includes a first filter plate 2021 for carrying a filter screen;

one side of the first filter plate 2021 is connected with a plurality of T-shaped blocks 2022;

a pulling plate 2023 is sleeved on the outer side of the T-shaped block 2022;

a T-shaped groove 2024 matched with the T-shaped block 2022 is arranged inside the pulling plate 2023;

a coarse filter net 2026 and a fine filter net 2025 for coarse and fine filtration are inserted in the first filter plate 2021 side by side;

a gap is arranged between the coarse filter net 2026 and the fine filter net 2025;

the other side of the first filter plate 2021 is connected with a second filter plate 2027 and a third filter plate 2028 for standby in sequence.

Further, the control component 203 includes:

a reciprocating rod 2031, wherein one end of the reciprocating rod 2031 is connected to the side of the pulling plate 2023;

a piston block 2032 for pushing the piston block 2032 of the filter assembly 202 to be connected to the other end of the reciprocating rod 2031;

the periphery of the piston block 2032 is attached to the inner wall of the frame plate 201;

one side of the piston block 2032 opposite to the reciprocating rod 2031 is connected with two groups of limiting blocks 20321;

a first cutting block 2033 for controlling the water control unit 3 to open is connected to the joint of the side part of the reciprocating rod 2031 and the pulling plate 2023;

a second cutting block 2034 for controlling the water control unit 3 to close is connected to the joint of the reciprocating rod 2031 and the piston block 2032.

Further, as shown in fig. 1-2 and 6-7, the water control unit 3 includes:

a valve block 301;

a pipe 302 connected to both sides of the valve block 301 for introducing water inside the delivery unit 1 into the switching unit 2;

the thrust rod 303 is used for controlling the thrust rod 303 in a closed state in the pipeline 302 to be inserted in the valve block 301 in a sliding manner;

the thrust rod 303 is preferably arranged in a shape with two large ends and a small middle;

a guide block 304, which is used for inserting the guide block 304 for guiding the thrust rod 303 into the side wall of the frame plate 201;

and the adjusting block 305 is used for linking the switching unit 2 with the water control unit 3.

A through groove for penetrating through the reciprocating rod 2031 is formed in the adjusting block 305, and a second bevel 3052 matched with the inclination of the second cutting block 2034 and a first bevel 3051 matched with the inclination of the first cutting block 2033 are respectively arranged on the diagonal side of the through groove.

It should be noted that, when in use, the second filter plate 2027 is preferentially adopted for filtering, only one of the valve blocks 301 which are symmetrically arranged is blocked by the thrust rod 303, when the primary filter net 2026 or the secondary filter net 2025 which is located inside the conveying unit 1 and is working is blocked, the water pressure inside the water conduit 101 at the side which is not filtered is increased, so that the water pressure enters the frame plate 201 through the valve block 301 which is not blocked along the pipeline 302, and then the water flow drives the reciprocating rod 2031 to move inside the frame plate 201 through the piston block 2032, the reciprocating rod 2031 drives the first filter plate 2021, the second filter plate 2027 and the third filter plate 2028 to generate position switching through the pull rod 2023, when a new filter plate is switched to a working filter plate, the water inside the conveying unit 1 is not blocked, and the water flow inside the pipeline 302 stops moving, thereby achieving the effect of automatically replacing the filter plates;

as shown in fig. 6-8, during each switching process of the filter plates, the reciprocating rod 2031 needs to slide relative to the adjusting block 305, when the first filter plate 2021 is blocked after being positioned at the working filter plate, the second cut 2034 drives the adjusting block 305 to move along the + X direction by the guiding action of the second bevel 3054, the adjusting block 305 drives the thrust rod 303 to move along the valve block 301 and close one of the valve blocks 301 that is originally opened, and at the same time, the valve block 301 on the other side that is symmetrical with respect to the conveying unit 1 is opened under the tangential action of the first cut 2033 and the first bevel 3051, so that the switching direction of the following filter plates is opposite to the original direction, and the switching is repeated, thereby achieving the effect of fast switching speed.

As a modification, as shown in fig. 9 to 11, the transmission unit 6 includes:

a swing member 601;

the water containing assembly 602 is arranged between the swinging assembly 601 and the conveying unit 1;

the swing assembly 601 includes:

a second drive assembly 6011;

a transmission mechanism 6012, wherein the transmission mechanism 6012 is rotatably connected to a side portion of the second driving assembly 6011;

a switch lever 6013, the switch lever 6013 for adjusting a cleaning sequence of the cleaning unit 5 is engaged with the transmission mechanism 6012;

the transmission mechanism 6012 preferably adopts a rack and pinion transmission;

the water containing assembly 602 includes:

a water tank 6021 for storing a cleaning liquid 6021 connected to an upper portion of the feeding unit 1;

guide plates 6022 for guiding the swing assembly 601 are symmetrically connected to both sides of the water tank 6021;

two sets of the switch bars 6013 are U-shaped and arranged symmetrically with respect to the conveying unit 1;

a hole for penetrating the switching rod 6013 is formed in the guide plate 6022;

the lower end of the guide plate 6022 is connected with a trigger switch 6023 for controlling the cleaning unit 5 to perform cleaning operation.

It should be added that, an electrical signal controller connected to the valve block 301 is connected inside the second driving assembly 6011 symmetrically arranged with respect to the delivery unit 1, so as to ensure that the second driving assembly 6011 can be opened or closed together with the valve block 301 when the valve block 301 is opened or closed.

Further, as shown in fig. 5, 9 to 11, the cleaning unit 5 includes:

two sets of first driving assemblies 501 for adjusting the spraying direction of the cleaning liquid are symmetrically connected to the inner side of the switch lever 6013 with respect to the frame plate 201;

a support rod 505, wherein the support rod 505 is symmetrically arranged about the frame plate 201 and is connected to the side of the switch rod 6013;

a cleaning brush 506 for scraping and brushing a filter screen is rotatably connected to one side of the support rod 505 opposite to the frame plate 201;

the cleaning brush 506 is rod-shaped, and the length of the cleaning brush 506 is matched with the diameter of the filter screen.

Furthermore, a swing rod 502 is rotatably connected to one side of the first driving assembly 501, which is opposite to the switching rod 6013;

one end of the swing rod 502 close to the frame plate 201 is connected with a nozzle 504 for spraying cleaning liquid to the filter screen along a plurality of angles;

a water inlet pipe 503 for introducing the cleaning liquid in the water tank 6021 to the spout 504 for spraying is inserted into the swing rod 502.

It should be noted that, as shown in fig. 10, when the filter plate blocked after switching is shifted from the working position to the same horizontal plane as the cleaning unit 5, the second driving assembly 6011 first drives the switching rod 6013 to move in the + Y direction through the transmission mechanism 6012, the switching rod 6013 moves along the guide plate 6022 and drives the cleaning brush 506 to contact one side of the coarse filter 2026 through the support rod 505, at this time, the switching rod 6013 contacts the trigger switch 6023 located at one side of the coarse filter 2026 and controlling the cleaning unit 5 to work, so that the cleaning brush 506 rotates to scrape and brush the surface of the coarse filter 2026, and at the same time, the first driving member 501 drives the swing rod 502 to swing up and down, so that the nozzle 504 can spray the water pumped from the water tank 6021 to the coarse filter 2026 at multiple angles, thereby cleaning the coarse filter 2026 by adopting the way of integrating scraping and brushing with spraying outside the filter apparatus, and discharging the cleaned impurities directly, The filter screen is prevented from being blocked again by the cleaned impurities along the direction of water flow;

after the coarse screen 2026 is cleaned, as shown in fig. 11, the second driving assembly 6011 drives the switching rod 6013 to move in the opposite direction through the transmission mechanism 6012, so that the switching rod 6013 contacts with the trigger switch 6023 located at one side of the fine screen 2025, which is the same as the way of cleaning the coarse screen 2026, i.e., the cleaning brush 506 located at one side of the fine screen 2025 brushes the fine screen 2025, and meanwhile, the swing rod 502 sprays the cleaning liquid onto the surface of the fine screen 2025 through the nozzle 504 at multiple angles to remove impurities.

As a modification, as shown in fig. 12, the conveying unit 1 includes:

a water conduit 101;

a slag collecting pipe 102 for connecting the slag collecting pipe 102 for accommodating the filter residue filtered by the pipe cutting unit 2 in the conveying unit 1 to the lower part of the water guide pipe 101;

a filter housing groove 104 through which the filter housing groove 104 for positioning the switching unit 2 penetrates the water conduit 101;

the filter receiving tank 104 is disposed adjacent to the slag trap 102.

Further, the slag collecting pipe 102 is arranged in an inclined shape along the direction of water flow, and an inclined angle is arranged at the position, adjacent to the filter accommodating groove 104, of the slag collecting pipe 102;

the lower end of the slag collecting pipe 102 is rotatably connected with a blocking block 103 used for releasing filter slag.

It should be noted that, to the filter residue of inside unblock, when installing in filter holding tank 104 department along with the rivers passes, the filter residue is blockked the back by coarse strainer 2026 and fine strainer 2027 respectively, fall into collection sediment pipe 102 inside, then will deposit the timely discharge of filter residue in collection sediment pipe 102 inside through opening jam piece 103, through setting up collection sediment pipe 102 to slope along rivers advancing direction, the effectual water that prevents is taken away the filter residue of collection sediment pipe 102 inside again when flowing, prevent that the filter screen is too fast blockked up, lead to the switching that the filter screen needs relapse, be favorable to prolonging the life of filter screen.

Example two

As shown in fig. 5, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:

offer the groove 403 of dismantling in deckle board 201 one side, dismantle groove 403 one side and be connected with apron 401 and fasten the side at deckle board 201 through a plurality of fastener 402, apron 401 surface is equipped with the round hole with filter screen assorted, damage appears in certain filter screen when deckle board 201 is inside, rotatable fastener 402, be similar to current bolted connection, dismantle apron 401, dismantle the back as shown in fig. 5, can directly take out and replace a new filter plate with the damage filter plate that other filter plates are inlaying this moment, this process is when avoiding current change filter screen than, because the filter screen is inside the pipeline, lead to changing complicacy, thereby reached and adopted the mosaic type to connect, be convenient for carry out the effect of changing to the filter screen that damages.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.