Water body purification filter

Abstract

The invention relates to the technical field of water purification, in particular to a water purification filter. Comprising a culture box, filtering devices are arranged on the two sides of the bottom of the culture box, a protection mechanism, an overturning part and a scraping mechanism are arranged in the culture box from top to bottom, and protection curtains on the two sides in the culture box are attached to auxiliary boxes, so that a water body is divided into an upper part and a lower part, and the culture water body is prevented from being turbid in the cleaning process; the upper scraping plate scrapes sediments on the outer overturning plate, the lower scraping plate scrapes the sediments accumulated at the bottom end of the interior of the breeding box to the filter body, the sediments are purified through the filter body under the action of the pump body, and therefore water is recycled, and the auxiliary box is shifted to move downwards along with the outer overturning plate; at the moment, the protective curtains on the two sides downwards reduce the space of a turbid area at the bottom, the activity space of cultured fishes is increased, the shifting rod shifts the reciprocating part to move back and forth, then impurities of sediments are crushed, and filter holes of the box body are prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of water purification, in particular to a water purification filter. Background Art

[0002] Aquaculture is the production activity of breeding, cultivating and harvesting aquatic plants and animals under artificial control. my country's aquaculture industry is relatively developed. During the breeding process, there are many leftover baits, feces, and corpses of protozoa and microalgae deposited at the bottom of the pond. They rot and deteriorate under the action of microorganisms, breeding many harmful protozoa and bacteria, and producing a large amount of harmful gases and substances dissolved in the water. As time goes by, the corrupt deposits will accumulate more and more. The disasters caused by water environment pollution will increase the breeding cost and bring inconvenience to breeding.

[0003] In the prior art, when dealing with the deposits at the bottom of the aquaculture water body, professional sediment flukes or sediment suction pools are usually used for mechanical cleaning. These devices can absorb the sediment at the bottom and clean them regularly. When the machinery cleans the deposits, in order to reduce the harm to the fish, it is necessary to use a fishing net to gather the fish in the water body together, and then clean the deposits. Restricting the fish with the fishing net reduces the activity space of the fish and easily scares the fish. The fishing net will cause harm to the fish and affect the economic benefits. If the sediment at the bottom of the aquaculture water body is salvaged and discharged by direct scraping, the water body will become turbid during the scraping process, which will cause the death of fish. Summary of the invention

[0004] The object of the present invention is to provide a water purification filter to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides a water purification filter, including a breeding box, filtering devices are arranged on both sides of the bottom of the breeding box, and a protection mechanism, a turning part and a scraping mechanism are arranged inside the breeding box from top to bottom, respectively. The protection mechanism, the turning part and the scraping mechanism are driven by a third driving device, a first driving device and a second driving device arranged on the breeding box, respectively, and a fixed plate is symmetrically arranged in the middle of the breeding box, and the fixed plates on both sides are slidably connected to a reciprocating member; The protection mechanisms on both sides cooperate with the auxiliary part set in the middle of the breeding box to divide the breeding box into two layers, the upper and lower layers. The protection mechanisms protect the upper clear water area and limit the turbid water area at the bottom from drifting to the clear water area. The flipping part includes an outer flip plate and an inner flip plate. The outer flip plate and the inner flip plate rotate to make the sediment on the outer flip plate tilt toward one side of the middle part. The skewed outer flip plates on both sides push the auxiliary part downward. The auxiliary part and the reciprocating part resist to push open the baffle connected to the auxiliary box. The auxiliary part includes an auxiliary box. The gap between the auxiliary box and the reciprocating part is reduced. In the process of the scraping mechanism scraping the sediment toward the middle part, the reciprocating part moves back and forth on the fixed plate to crush the debris in the sediment falling into the two sides of the reciprocating part.

[0006] As a further improvement of the present technical solution, the filtering device includes a filter body, a pump body and a box body. The box body is arranged in the middle of the breeding box, and the breeding box is connected to the filter body on the side wall of the breeding box through a pipe. The pump body connected to the top of the filter body is arranged on the breeding box, and multiple filtering layers are provided inside the filter body.

[0007] As a further improvement of the present technical solution, the protective mechanism includes a protective curtain and an elastic rolling sheet. The protective curtain is wound around a winding roller. One side of the winding roller passes through the side wall of the breeding box and is connected to the elastic rolling sheet. The elastic rolling sheet can automatically retract the protective curtain when the protective curtain is released.

[0008] As a further improvement of the present technical solution, a counterweight body cooperating with the auxiliary box is provided at the end of the protective curtain, and slide rails are provided on both sides of the inner wall of the breeding box. The slide rails are connected by elastic ropes, and the elastic ropes are supported by the auxiliary box. The protective curtain is rotated at the end to fit the slide rail of the breeding box. A limit block provided on the side of the counterweight body slides on the slide rail and keeps the counterweight body so that it can be smoothly inserted into the auxiliary box, and the counterweight body fits the auxiliary box.

[0009] As a further improvement of the technical solution, the inner flip plate is slidably connected to the outer flip plate, and a plurality of square holes of the same size as the outer flip plate are opened in the inner flip plate. A filter is provided in each square hole on the outer flip plate, and a first spring is sleeved on a plurality of cross bars provided on one side of the inner flip plate. An elastic pull rope provided between the inner flip plates on both sides passes through the auxiliary box, and the end of the outer flip plate away from the first spring is rotated to be connected to the breeding box, so that the outer flip plates on both sides can be flipped inward.

[0010] As a further improvement of the technical solution, the scraping mechanism includes an upper scraper, which is fitted with the upper surface of the outer flip plate. The two side ears of the upper scraper are sleeved on a connecting rod fixedly connected to the side of the outer flip plate. The ears are against a second spring sleeved on the upper end of the connecting rod, and the ears on both sides are passed through a rope to pass through an auxiliary wheel that is rotatably connected to the breeding box. The end of the rope is fixedly connected to a sliding rod sleeved on the auxiliary rod, and both sides of the sliding rod are slidably connected to the auxiliary rod.

[0011] As a further improvement of the technical solution, the scraping mechanism also includes a lower scraper, a bevel rack, an upper bevel gear and a lower bevel gear. The other end of the bevel rack to which the lower scraper is fixed is rotatably connected to a sliding rod. The lower bevel gear meshed with the bevel rack is rotatably connected to a breeding box. The eccentric shaft on the upper bevel gear meshed with the lower bevel gear is connected to a lever. The lever extends into a square groove opened at the bottom of the reciprocating part. The stabilizing bar and the auxiliary wheel are slidably connected to the bottom of the upper bevel gear.

[0012] As a further improvement of the present technical solution, the top of the reciprocating member is in an arc shape, so that when the auxiliary box sinks toward the reciprocating member, the gap through which the sediment is discharged from both sides of the reciprocating member is reduced. At the same time, the protective curtain is moved closer to the outward flip plate to reduce the range of the turbidity zone. The lever drives the reciprocating member to move back and forth to crush the sediment, thereby absorbing the crushed sediment into the box body, and the water body is recycled again after being filtered by the filter body.

[0013] As a further improvement of the technical solution, vertical rods slidably connected to the telescopic rod are symmetrically arranged on both sides of the bottom of the auxiliary box. The third spring sleeved on the outside of the telescopic rod respectively resists the top plate and the top block, and the oblique rods rotatably connected to the baffle on both sides of the top plate are rotatably connected.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the water purification filter, each time the aquaculture water is purified, the protective curtains on both sides of the aquaculture box are fitted with the auxiliary box to divide the water into two parts, upper and lower, to avoid turbidity of the aquaculture water during the cleaning process. Secondly, the slide bars on both sides move relatively and drive the ropes and the bevel racks on both sides of the upper scraper to move. The upper scraper scrapes the sediment on the outer flip plate, and the lower scraper scrapes the sediment accumulated at the bottom of the aquaculture box to the filter body. Under the action of the pump body, the sediment is purified through the filter body, thereby recycling the water.

[0015] 2. In the water purification filter, in the process of the outer turning plates on both sides settling toward the middle, on the one hand, the sediment on the outer turning plates is tilted obliquely downward, and at the same time, the settling auxiliary box is engaged with the counterweight bodies on both sides. As the outer turning plates push the auxiliary box to move downward, the protective curtains on both sides reduce the space of the bottom turbidity zone downward, thereby increasing the activity space of farmed fish, and the moving bevel rack drives the lower bevel gear to rotate, and the lower bevel gear drives the upper bevel gear to rotate, so that the lever pushes the reciprocating part back and forth to move, thereby crushing the impurities in the sediment to prevent the filter holes of the box from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the culture box of the present invention; Figure 3 It is a schematic diagram of the auxiliary part, the outer flip plate and the box body structure of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the outer flip plate of the present invention; Figure 5 It is a schematic diagram of the enlarged structure of point A of the present invention; Figure 6 It is a schematic diagram of the exploded structure of the lower scraper, auxiliary wheel and upper bevel gear of the present invention; Figure 7 It is a schematic diagram of the unfolding structure of the protective curtain of the present invention; Figure 8 It is a schematic diagram of the enlarged structure of point B of the present invention; Fig. 9 This is a schematic diagram of the internal structure of the outer flip plate of the present invention; Fig.10 It is a schematic diagram of the exploded structure of the magnetic box, reciprocating member and fixed plate of the present invention.

[0017] The meaning of each number in the figure is: 100, breeding box; 101, first driving device; 102, second driving device; 103, third driving device; 104, filter body; 105, pump body; 106, box body; 107, reciprocating member; 108, fixing plate; 200, protection mechanism; 201, protection curtain; 202, elastic roll piece; 203, slide rail; 204, counterweight; 205, limit block; 300, turning part; 301, outer turning plate; 302, inner turning plate; 303, first spring; 304, elastic drawstring; 400, scraping mechanism; 401, lower scraper; 402, upper scraper; 403, bevel rack; 404, slide bar; 405, auxiliary wheel; 406, auxiliary rod; 407, upper bevel gear; 408, lower bevel gear; 409, lever; 410, stabilizer bar; 411, second spring; 412, connecting rod; 500, auxiliary part; 501, auxiliary box; 502, vertical pole; 503, third spring; 504, telescopic rod; 505, top block; 506, baffle. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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 are within the scope of protection of the present invention.

[0019] Example

[0020] like Figure 1-Figure 2 As shown, a water purification filter is provided, including a breeding box 100, wherein filtering devices are arranged on both sides of the bottom of the breeding box 100, and a protection mechanism 200, a turning part 300 and a scraping mechanism 400 are arranged inside the breeding box 100 from top to bottom, respectively. The protection mechanism 200, the turning part 300 and the scraping mechanism 400 are driven by a third driving device 103, a first driving device 101 and a second driving device 102 arranged on the breeding box 100, respectively.

[0021] It should be noted here that: First: The first driving device 101 is composed of a double-headed motor and main bevel gears on both sides. The double-headed motor is fixed on the outside of the side wall of the breeding box 100, and the main bevel gears coaxially connected to the output shafts at both ends of the double-headed motor are meshed with the secondary bevel gears coaxially connected to one side of the outer flip plate 301.

[0022] Second: The second driving device 102 is composed of a first motor and a winding roller. The first motor is fixed on the front side wall of the breeding box 100. The output shaft of the first motor is coaxially connected to the winding roller, and two winding reels are arranged on the winding roller. The ropes wound on the winding reels are connected to the protective curtain 201.

[0023] Third: The third driving device 103 is composed of a second motor and a reverse screw. The second motor is fixed on the side wall of the breeding box 100, and the reverse screw coaxially connected to the output shaft of the first motor is threadedly connected to the sliding rods 404 on both sides, and the reverse screw is rotatably connected to the breeding box 100.

[0024] First, the specific structure of the protective mechanism 200 is disclosed. The protective mechanism 200 includes a protective curtain 201 and an elastic roll sheet 202. The protective curtain 201 is wound around a winding roller, one side of the winding roller passes through the side wall of the breeding box 100 and is connected to the elastic roll sheet 202. The elastic roll sheet 202 can automatically retract the protective curtain 201 when the protective curtain 201 is released.

[0025] Therefore, in the initial state, the protective curtains 201 on both sides are not in contact with the auxiliary part 500 in the middle of the breeding box 100, and the auxiliary part 500 includes an auxiliary box 501, that is, the sediment falls directly on the outer flip plate 301, because the inner flip plate 302 is slidably connected to the outer flip plate 301, and the first spring 303 (such as Fig. 9 shown).

[0026] Therefore, under the elastic action of the first spring 303, the square holes of the outer flip plate 301 and the inner flip plate 302 are offset from each other, and when the inner flip plate 302 slides toward the first spring 303, the square hole of the inner flip plate 302 can be revealed through the square hole of the outer flip plate 301. In this way, when the outer flip plate 301 is tilted, a part of the sediment on the outer flip plate 301 can first fall to the bottom of the breeding box 100, and some impurities with larger particles continue to be scraped away by the upper scraper 402, thereby reducing the cleaning burden of the scraping mechanism 400.

[0027] Before cleaning the sediment, the fish in the breeding box 100 need to be separated. Therefore, the first motor drives the winding rod to rotate, and the two winding reels wind up the ropes on both sides. The ropes pull the protective curtain 201 to move it toward the auxiliary box 501. During the movement, since a counterweight body 204 is provided at the end of the protective curtain 201, and a limit block 205 provided on the side of the counterweight body 204 slides on the slide rail 203 and keeps the counterweight body 204 from being smoothly inserted into the auxiliary box 501 (such as Figure 7 and Figure 8 As shown), as the protective curtain 201 gradually moves toward the auxiliary box 501 until the counterweight body 204 fits with the auxiliary box 501, when the counterweight bodies 204 on both sides fit with the auxiliary box 501, the breeding box 100 is now divided into two upper and lower areas, the upper one is the clear water area, and the lower one is the turbid water area.

[0028] At this time, if the sediment is cleaned directly, the protective curtains 201 on both sides will be separated from the auxiliary box 501 due to the fluctuation of the water body in the turbid area during the cleaning process. Therefore, at the beginning of the cleaning work, the double-headed motor, the main bevel gear and the auxiliary bevel gear rotate in sequence. Since the auxiliary bevel gear is coaxially connected to one end of the outer flip plate 301 (such as Figure 3 As shown), the other ends of the outer flip plates 301 on both sides sink downward, and the sunken outer flip plates 301 swing the auxiliary box 501 downward to lower its height. In this process, the protrusions on both sides of the auxiliary box 501 with a reduced height are embedded in the counterweight body 204, so that the protrusions are snap-fitted with the counterweight body 204. At this time, when cleaning the sediment, the fluctuating water body will not separate the counterweight body 204 from the auxiliary box 501, thereby playing a good protective role.

[0029] In addition, the height-reduced auxiliary box 501 will also cause the slide rail 203 to rotate along the connection with the breeding box 100, that is, the protective curtain 201 will also move obliquely downward to reduce the space of the bottom turbid area and increase the space for the upper fish to move. At the same time, the top block 505 provided at the bottom of the auxiliary box 501 is against the arc top of the reciprocating member 107 supported by the fixed plate 108, so that the distance between the bottom and the arc top of the auxiliary box 501 is reduced. When the arc top contacts the top block 505, the third spring 503 on the outside of the telescopic rod 504 fixedly connected above the top block 505 is compressed, and the elastic potential energy of the third spring 503 increases. At this time, the vertical rod 502 passes through the top plate and the third spring 503, and the ejected top plate pushes the oblique rods on both sides outward, so that the baffles 506 on both sides that are rotatably connected to the auxiliary box 501 are flipped open, so that the sediment on the upper surface of the crooked outer flip plate 301 can enter (such as Fig.10 shown).

[0030] Secondly, when the device is working, fish are cultured in the culture box 100. When the sediment needs to be cleaned after a period of culture, the second motor drives the reverse screw to rotate, so that the slide bars 404 threadedly connected to both sides of the reverse screw move to both sides, that is, the slide bars 404 slide on the auxiliary rods 406 fixedly connected to the culture box 100, and the rope connected to the slide bars 404 passes through the auxiliary wheels 405 rotatably connected to the culture box 100 and connected to the lugs at both ends of the scraper 402 (such as Figure 6 As shown), when the rope is stretched, in order to enable the upper scraper 402 to slide along the surface of the outer flip plate 301 and scrape off the sediment on the outer flip plate 301, the next step is to return to Fig. 9 By sleeveing ​​the lugs on both sides of the upper scraper 402 on the connecting rod 412 fixedly connected to the side of the outer flip plate 301, the lugs are against the second spring 411 sleeved on the upper end of the connecting rod 412, so that the upper scraper 402 can be fitted with the upper surface of the outer flip plate 301 during the movement, and the lugs on both sides are fixedly connected to the upper scraper 402, thereby maintaining the stability of the upper scraper 402. When the rope connected to the lug is released, under the elastic action of the compressed second spring 411, the second spring 411 pushes the lug in the opposite direction to restore the upper scraper 402 to its original position.

[0031] As the upper scraper 402 cleans the sediment on the surface of the outer flip plate 301, when the sediment is cleaned to the first square hole on the outer flip plate 301, since the outer flip plates 301 on both sides are connected by elastic pull ropes 304, and the elastic pull ropes 304 pass through the auxiliary box 501, the descent of the auxiliary box 501 will also pull the elastic pull ropes 304 to cause the square holes of the inner flip plates 302 on both sides to be misaligned with the filter screens in the square holes of the outer flip plate 301, and then under the scraping of the upper scraper 402, a part of the sediment on the outer flip plate 301 falls along the square holes of the outer flip plate 301 and the inner flip plate 302 to the bottom of the breeding box 100, so that the lower scraper 401 can scrape it off.

[0032] In order to allow the sediment to be smoothly sucked into the box body 106 and prevent the filter holes of the box body 106 from being blocked, the specific structure of the scraping mechanism 400 is further disclosed herein. The scraping mechanism 400 also includes a lower scraper 401, a helical rack 403, an upper bevel gear 407 and a lower bevel gear 408. Figure 4 and Figure 5 As shown, when the slide bars 404 on both sides move in the opposite direction, since the other end of the bevel rack 403 fixedly connected to the lower scraper 401 rotates to connect the slide bar 404, the lower bevel gear 408 meshed with the bevel rack 403 rotates to connect to the breeding box 100, the eccentric shaft on the upper bevel gear 407 meshed with the lower bevel gear 408 is connected to the lever 409, the lever 409 extends into the square groove opened at the bottom of the reciprocating member 107, the stabilizing bar 410 and the auxiliary wheel 405 are slidably connected at the bottom of the upper bevel gear 407, and thus, the bevel rack 403 pulls The lower scraper 401 scrapes off the sediment settled at the bottom of the breeding box 100, and the bevel rack 403 also drives the lower bevel gear 408 to rotate, thereby driving the upper bevel gear 407 and the lever 409 to rotate with the assistance of the stabilizing rod 410. The rotating lever 409 drives the reciprocating member 107 back and forth to shake at the bottom of the auxiliary box 501, that is, the reciprocating member 107 slides back and forth on the fixed plate 108 on both sides to crush the impurities in the sediment dropped into the middle of the auxiliary box 501, so that the sediment can be smoothly sucked into the box body 106.

[0033] Then, after the lower scraper 401 and the upper scraper 402 have cleaned the sediment, the second motor drives the reverse screw rod to rotate in the reverse direction, so that the sliding rods 404 on both sides move inward, the rope connected to the protective curtain 201 is released and the upper scraper 402 is pushed to the original position under the elastic action of the second spring 411. At the same time, the double-headed motor rotates in the reverse direction to make the outer flip plate 301 flip in the reverse direction to be level with the bottom end of the breeding box 100. Finally, the lower scraper 401 scrapes the sediment toward the box body 106, and the crushed sediment is absorbed into the box body 106, and after being filtered by the filter body 104, the water body is recycled again.

[0034] The filtering device includes a filter body 104, a pump body 105 and a box body 106. The box body 106 is arranged in the middle of the breeding box 100, and the breeding box 100 is connected to the filter body 104 on the side wall of the breeding box 100 through a pipeline. The pump body 105 connected to the top of the filter body 104 is arranged on the breeding box 100, and multiple filtering layers are arranged inside the filter body 104.

[0035] In summary, the working principle of the present solution is as follows: the protective curtains 201 on both sides are matched with the auxiliary box 501 in the middle through the third driving device 103, and the protective curtains 201 are used as partitions to form clear water areas and turbid areas respectively, so as to prevent the clean water from being polluted when the sediment is cleaned in the later stage. Then, the outer turning plate 301 connected by the rotation of the two side walls inside the breeding box 100 is turned over (the end of the outer turning plate 301 away from the breeding box 100 sinks downward), and the auxiliary box 501 is engaged with the protective curtain 201 under the manipulation of the outer turning plates 301 on both sides, and as the turning angle of the outer turning plate 301 increases, the protective curtain 201 also rotates with the outer turning plate 301 to reduce the range of the turbid area and increase the activity space of the fish.

[0036] Furthermore, the lower scrapers 401 on both sides are moved closer to the middle by rotating the screw in the reverse direction, and the upper scraper 402 scrapes off the sediment on the outer flip plate 301. At the same time, during the rotation of the outer flip plate 301, the inner flip plate 302 opens the filter screen of the outer flip plate 301, so that a part of the sediment falls to the bottom of the breeding box 100, and some larger sediment particles are cleaned out from the auxiliary box 501 by the upper scraper 402. Secondly, the descending auxiliary box 501 reduces the distance between it and the reciprocating member 107. Under the manipulation of the lever 409, the reciprocating member 107 reciprocates back and forth, thereby crushing the sediment falling from the auxiliary box 501 to prevent the larger sediment particles from clogging the box body 106.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A water purification filter, comprising a breeding box (100), characterized in that: Filter devices are provided on both sides of the bottom of the breeding box (100); a protection mechanism (200), a turning part (300) and a scraping mechanism (400) are provided inside the breeding box (100) from top to bottom; the protection mechanism (200), the turning part (300) and the scraping mechanism (400) are driven by a third driving device (103), a first driving device (101) and a second driving device (102) provided on the breeding box (100), respectively; and a fixed plate (108) is symmetrically provided in the middle of the breeding box (100); and reciprocating members (107) are slidably connected to the fixed plates (108) on both sides; The protection mechanisms (200) on both sides cooperate with the auxiliary part (500) arranged in the middle of the breeding box (100) to divide the breeding box (100) into two layers, the upper and lower layers. The protection mechanisms (200) protect the upper clear water area and limit the turbid water area at the bottom from drifting toward the clear water area. The turning part (300) comprises an outer turning plate (301) and an inner turning plate (302). The outer turning plate (301) and the inner turning plate (302) rotate to tilt the sediment on the outer turning plate (301) toward one side of the middle part. The outer turning plates (301) tilted at both sides push the auxiliary part (500) downward. The auxiliary part (500) abuts against the reciprocating member (107) to push open a baffle (506) that is rotatably connected to the auxiliary box (501). The auxiliary part (500) comprises an auxiliary box (501). The gap between the auxiliary box (501) and the reciprocating member (107) is reduced. When the scraping mechanism (400) scrapes the sediment toward the middle part, the reciprocating member (107) moves back and forth on the fixed plate (108) to crush the debris in the sediment that falls on both sides of the reciprocating member (107).

2. The water purification filter according to claim 1, characterized in that: The filtering device comprises a filter body (104), a pump body (105) and a box body (106); the box body (106) is arranged in the middle of a breeding box (100); the breeding box (100) is connected to the filter body (104) on the side wall of the breeding box (100) via a pipeline; the pump body (105) connected to the top of the filter body (104) is arranged on the breeding box (100); and a plurality of filtering layers are arranged inside the filter body (104).

3. The water purification filter according to claim 1, characterized in that: The protection mechanism (200) comprises a protection curtain (201) and an elastic roll (202); the protection curtain (201) is wound around a winding roll, one side of the winding roll passes through a side wall of the breeding box (100) and is connected to the elastic roll (202); the elastic roll (202) can automatically retract the protection curtain (201) when the protection curtain (201) is released.

4. The water purification filter according to claim 3, characterized in that: A counterweight (204) that cooperates with the auxiliary box (501) is provided at the end of the protective curtain (201), and slide rails (203) are provided on both sides of the inner wall of the breeding box (100). The slide rails (203) are connected by elastic ropes, and the elastic ropes are supported by the auxiliary box (501). The protective curtain (201) is fitted with the slide rail (203) whose end is rotatably connected to the breeding box (100). A limit block (205) provided on the side of the counterweight (204) slides on the slide rail (203) and keeps the counterweight (204) from being smoothly inserted into the auxiliary box (501), and the counterweight (204) is fitted with the auxiliary box (501).

5. The water purification filter according to claim 1, characterized in that: The inner flip plate (302) is slidably connected to the outer flip plate (301), a plurality of square holes of the same size as the outer flip plate (301) are provided in the inner flip plate (302), a filter is provided in each square hole on the outer flip plate (301), and a plurality of cross bars provided on one side of the inner flip plate (302) are sleeved with a first spring (303), an elastic pull rope (304) provided between the inner flip plates (302) on both sides passes through the auxiliary box (501), and one end of the outer flip plate (301) away from the first spring (303) is rotatably connected to the breeding box (100), so that the outer flip plates (301) on both sides can flip inward.

6. The water purification filter according to claim 1, characterized in that: The scraping mechanism (400) comprises an upper scraper (402), the upper scraper (402) is fitted with the upper surface of the outer flip plate (301), the lugs on both sides of the upper scraper (402) are sleeved on a connecting rod (412) fixedly connected to the side of the outer flip plate (301), the lugs are abutted against a second spring (411) sleeved on the upper end of the connecting rod (412), and the lugs on both sides are passed through a rope around an auxiliary wheel (405) rotatably connected to the breeding box (100), the end of the rope is fixedly connected to a sliding rod (404) sleeved on an auxiliary rod (406), and both sides of the sliding rod (404) are slidably connected to the auxiliary rod (406).

7. The water purification filter according to claim 1, characterized in that: The scraping mechanism (400) further comprises a lower scraper (401), a bevel gear (403), an upper bevel gear (407) and a lower bevel gear (408); the other end of the bevel gear (403) fixedly connected to the lower scraper (401) is rotatably connected to a slide rod (404); the lower bevel gear (408) meshed with the bevel gear (403) is rotatably connected to a breeding box (100); the upper eccentric shaft of the upper bevel gear (407) meshed with the lower bevel gear (408) is connected to a lever (409); the lever (409) extends into a square groove provided at the bottom of the reciprocating member (107); and the stabilizing rod (410) rotatably connected to the bottom of the upper bevel gear (407) is slidably connected to the auxiliary wheel (405).

8. The water purification filter according to claim 7, characterized in that: The top of the reciprocating member (107) is in an arc shape, so that when the auxiliary box (501) sinks toward the reciprocating member (107), the gaps through which sediment is discharged from both sides of the reciprocating member (107) are reduced. At the same time, the protective curtain (201) moves closer to the outward turning plate (301) to reduce the range of the turbidity zone. The lever (409) moves the reciprocating member (107) back and forth to crush the sediment, thereby absorbing the crushed sediment into the box body (106) and recycling the water body after being filtered by the filter body (104).

9. The water purification filter according to claim 1, characterized in that: The bottom of the auxiliary box (501) is symmetrically provided with vertical rods (502) slidably connected to the telescopic rod (504). The third spring (503) sleeved on the outside of the telescopic rod (504) is respectively abutted against the top plate and the top block (505) at the top and bottom. The oblique rods rotatably connected to the top plate at both sides are rotatably connected to the baffle (506).

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