Drainage filtering device for landscape pool

Abstract

The invention relates to the technical field of drum filtering, in particular to a landscape pool drainage filtering device which comprises a filtering box body, a backflushing mechanism and a drum rotationally arranged in the filtering box body, and further comprises a central water inlet pipe fixedly arranged in the filtering box body and arranged in the middle of the drum in a penetrating mode; the partition plates are fixedly arranged on the inner side of the rotary drum and matched with the central water inlet pipe to form a plurality of independent bins, the independent bins are located in the bottom area of the rotary drum and are filter bins, and the independent bins are located in the top area of the rotary drum and are pollution discharge bins. The invention has the following beneficial effects: by arranging a plurality of partition plates in the drum, the interior of the drum can be divided into a plurality of independent chambers, each chamber is dynamically sealed, water is injected into the filter chamber below through the central water inlet pipe, pressure filtration can be carried out by using water pressure, the filter efficiency of the equipment is improved, and meanwhile, through intermittent rotation of the drum, the filter efficiency is improved. The switching of the chambers is realized, and the continuous filtering operation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of rotary drum filtration, in particular to a drainage filtration device for a landscape pool. Background Art

[0002] Filtration of landscape ponds is crucial to maintaining water clarity, preventing algae growth, and maintaining ecological balance. Currently, physical and biological methods are commonly used for filtration. Biological filtration primarily utilizes microorganisms to decompose organic matter and harmful substances in the water, while physical filtration primarily involves filtering impurities in the water using brushes, rattan cotton, and a rotary drum filter. The working principle of a rotary drum filter is to place a drum with a filter screen on its periphery horizontally and rotate it. A sewage pipe is inserted directly into the opening of the drum, and drainage channels are provided inside the drum and on the drainage pipe. A spray head is installed on the top of the drum. Sewage is discharged into the drum, where water is filtered by gravity from the bottom of the drum, while residue is intercepted and retained in the drum. As the drum rotates, it moves to the upper part of the drainage channel. Spraying then separates the residue from the drum and allows it to fall into the drainage channel and out of the drum.

[0003] For example, patent application publication number CN107126749A discloses a rotary drum filter comprising a rotatable cylindrical drum, a backwash system disposed above the drum, the backwash system comprising at least a sprayer, a sewage outlet and a waste collector disposed within the drum, the waste collector and the sprayer positioned above and below each other, and a filter screen formed on the drum wall. This application demonstrates the ability to actively separate waste.

[0004] As in the prior art of the above-mentioned patent, although it can realize a continuous and self-cleaning sewage filtration process, the sewage is filtered by gravity after entering the drum, and the sewage flow rate is low, resulting in a larger equipment volume and lower filtration efficiency. Moreover, when the input sewage flow rate is large, it is easy to overflow the drum and cause secondary pollution. In addition, the filtered impurities are driven by the drum to move to the sewage guide chute and discharged. When there are granular impurities, the granular impurities are easily accumulated at the bottom of the drum, and the rotating drum cannot effectively bring the granular impurities into the sewage guide chute. For this reason, we propose a landscape pool drainage filtration device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a landscape pool drainage and filtering device to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a landscape pool drainage filter device, comprising a filter box, a backwash mechanism, and a drum rotatably arranged inside the filter box, and further comprising: a central water inlet pipe fixedly arranged in the filter box and passing through the middle of the drum;

[0007] The partition plate is fixedly arranged on the inner side of the drum and cooperates with the central water inlet pipe to form multiple independent chambers, wherein the multiple independent chambers located in the bottom area of the drum are filtration chambers, and the chambers located in the top area of the drum are sewage discharge chambers;

[0008] The centralized release mechanism is arranged between two adjacent sets of partition plates and includes an opening and closing component and a release component;

[0009] When the drum drives the centralized release mechanism to rotate to the bottom of the central water inlet pipe, the opening and closing components open, and the filter chamber is connected to the central water inlet pipe. When the centralized release mechanism enters the backwash area, the backwash sewage is stored in the sewage discharge chamber. When the centralized release mechanism moves to the top of the central water inlet pipe, the release component opens to discharge the backwash sewage in a centralized manner.

[0010] Preferably, a sewage trough corresponding to the position of the sewage bin is provided at the top of the central water inlet pipe, and a water inlet corresponding to the position of the filter bin is provided at the bottom.

[0011] Preferably, a stepping motor is provided inside the filter box for driving the drum to rotate intermittently, and a sewage pipe and a water pipe are provided on the side of the filter box away from the central water inlet inlet, and the sewage pipe is connected to the sewage trough.

[0012] Preferably, the centralized release mechanism is arranged at one end of the partition plate close to the central water inlet pipe, and the opening and closing component is inclined from the end close to the sewage pipe to the end away from the sewage pipe. The opening and closing component includes a closed baffle fixedly connected to the partition plate, and the closed baffle is hinged with a water-passing flap that can only rotate in one direction.

[0013] Preferably, the release assembly is located at an end of the opening and closing assembly away from the sewage pipe, and the release assembly includes a mounting sleeve fixedly mounted on the closed baffle, a transmission rod movably sleeved in the mounting sleeve and subjected to elastic force, a silicone sealing head is provided at one end of the transmission rod close to the closed baffle, a drainage hole is provided on the closed baffle, and the transmission rod can drive the silicone sealing head under the action of elastic force to seal the drainage hole.

[0014] Preferably, the bottom of the silicone sealing head and the top of the drainage hole are provided with mutually matching sealing conical surfaces, and the bottom end of the silicone sealing head is provided with a cleaning valve for cleaning the sealing conical surface on the drainage hole.

[0015] Preferably, a magnetic head is provided at one end of the transmission rod away from the closed baffle, and an electromagnet corresponding to the position of the magnetic head is provided on the top of the drum. When the magnetic head is located at the sewage discharge bin position and directly below the electromagnet, the electromagnet can magnetically attract the magnetic head.

[0016] Preferably, the recoil mechanism includes a recoil assembly for backwashing the drum; a water supply assembly for providing recoil water to the recoil assembly; and a reciprocating drive assembly for driving the recoil assembly to move back and forth, which is transmission-connected to the drum.

[0017] Preferably, there are two groups of recoil assemblies, and the recoil assemblies include a recoil pipe and a high-pressure nozzle. The high-pressure nozzle is fixedly installed on the side of the recoil pipe close to the drum, and the high-pressure nozzles in the two groups of recoil assemblies are staggered.

[0018] Preferably, the reciprocating drive assembly includes a drive shaft connected to the drum transmission, a reciprocating drive plate fixedly mounted on the outside of the drive shaft, and a drive roller fixedly connected to the recoil tube. When the reciprocating drive plate rotates, it can drive the recoil tube to move back and forth through the drive roller.

[0019] In the above technical solution, the beneficial effect of the present invention is as follows: by arranging a number of partition plates inside the drum, a number of independent chambers can be separated inside the drum, and each chamber can be dynamically sealed, and water is injected into the filter chamber below through the central water inlet pipe, and pressurized filtration can be performed using water pressure, thereby improving the filtration efficiency of the equipment. At the same time, through the intermittent rotation of the drum, the switching of each chamber is realized, and continuous filtration operation is achieved. In addition, when the chamber moves to the bottom of the backflushing mechanism for backflushing cleaning, the backflushing sewage is pre-concentrated in the chamber. When the chamber moves to the bottom of the electromagnet, the electromagnet applies magnetic attraction to the release component to open it, and the backflushing sewage is discharged in a concentrated manner, thereby better taking away the impurities backflushed.

[0020] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0021] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a structural schematic diagram of one side of the overall present invention;

[0024] Figure 2 It is a structural schematic diagram of the other side of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the cross section of the filter box of the present invention;

[0026] Figure 4 This is a structural diagram of the connection between the rotary drum and the central water inlet pipe of the present invention;

[0027] Figure 5 This is a schematic diagram of the internal and external structures of the drum of the present invention;

[0028] Figure 6 This is a structural diagram of the cooperation between the central water inlet pipe and the centralized release mechanism of the present invention;

[0029] Figure 7 This is a structural diagram of the central water inlet pipe of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the opening and closing assembly of the present invention;

[0031] Figure 9 It is a schematic structural diagram of the release assembly of the present invention;

[0032] Figure 10 For the present invention Figure 9 A schematic diagram of the structure enlarged at point A;

[0033] Figure 11 This is a schematic diagram of the structure of the recoil mechanism and the drum in the present invention;

[0034] Figure 12 This is a schematic diagram of the structure of the recoil assembly and the reciprocating drive assembly of the present invention;

[0035] Figure 13 This is a schematic structural diagram of the cooperation between the rotary drum and the stepping motor of the present invention.

[0036] Description of reference numerals:

[0037] In the figure: 1. Filter housing; 2. Sealing cover; 3. Central water inlet pipe; 4. Rotating drum; 5. Metal filter screen; 6. Drive gear ring; 7. Separator plate;

[0038] 8. Centralized release mechanism; 81. Opening and closing assembly; 811. Closing baffle; 812. Water-passing flap; 813. Articulated shaft; 814. Return torsion spring; 82. Release assembly; 821. Mounting sleeve; 822. Transmission rod; 823. Magnetic head; 824. Silicone sealing head; 825. Return spring; 826. Valve cleaning;

[0039] 9. Recoil mechanism; 91. Pipeline solenoid valve; 92. Recoil assembly; 921. Recoil pipe; 922. High-pressure nozzle; 93. Reciprocating drive assembly; 931. Mounting box; 932. Drive shaft; 933. Transmission gear; 934. Reciprocating drive paddle; 935. Transmission roller; 94. Mounting bracket;

[0040] 10. Stepper motor; 11. Drive gear; 12. Drain tank; 13. Water inlet; 14. Backflush pump; 15. Electromagnet. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0042] See also Figure 1-13 , an embodiment of the present invention provides a technical solution: a landscape pool drainage filter device, comprising a filter box 1, a backflushing mechanism 9, and a drum 4 rotatably arranged inside the filter box 1, and further comprising: a central water inlet pipe 3, fixedly arranged in the filter box 1 and passing through the middle of the drum 4, both ends of the drum 4 are provided with sealing plates, the middle of the sealing plates is provided with a through hole that cooperates with the central water inlet pipe 3, the drum 4 is movably sleeved on the outside of the central water inlet pipe 3, and the outside of the drum 4 is wrapped with a metal filter mesh 5 for filtering impurities in the water;

[0043] The partition plate 7 is fixedly arranged on the inner side of the drum 4 and cooperates with the central water inlet pipe 3 to form multiple independent chambers, wherein the multiple independent chambers located in the bottom area of the drum 4 are filtration chambers, and the chambers located in the top area of the drum 4 are sewage discharge chambers;

[0044] The centralized release mechanism 8 is provided between two adjacent groups of partition plates 7 and includes an opening and closing component 81 and a release component 82;

[0045] When the drum 4 drives the centralized release mechanism 8 to rotate to the bottom of the central water inlet pipe 3, the opening and closing component 81 opens, and the filter bin is connected to the central water inlet pipe 3. When the centralized release mechanism 8 enters the backwash area, the backwash sewage is stored in the sewage discharge bin. When the centralized release mechanism 8 moves to the top of the central water inlet pipe 3, the release component 82 opens to discharge the backwash sewage in a centralized manner.

[0046] Specifically, a number of evenly distributed partition plates 7 are provided in the drum 4, the partition plates 7 are against the central water inlet pipe 3, and a centralized release mechanism 8 is provided between adjacent partition plates 7, forming a plurality of independent chambers in the drum 4, the lowermost chamber can be connected to the central water inlet pipe 3 as a filter chamber, and the uppermost chamber can be connected to the sewage trough 12 as a sewage chamber. The filtered water is introduced into the filter chamber along the central water inlet pipe 3 through the delivery pump in the prior art, and the filtered water can be pressurized and filtered to improve the filtration efficiency; the drum 4 is controlled by the control system in the prior art to rotate intermittently at intervals of a certain period of time, and the position of the chamber is adjusted. The position is adjusted to gradually move the filtered chamber toward the position of the backflushing mechanism 9 and the electromagnet 15; the control system synchronously controls the backflushing mechanism 9 to open during each intermittent rotation. When the chamber after filtration moves to the bottom of the backflushing mechanism 9 for backflushing and cleaning, the release component 82 is in a closed state at this time, and the backflushing sewage is pre-concentrated in the chamber. After the drum 4 rotates intermittently, the chamber moves to just below the electromagnet 15, and the control system controls the electromagnet 15 to apply magnetic attraction to the release component 82 to open it, and the backflushing sewage is discharged in a concentrated manner, and the impurities flushed out are taken away by the backflushing sewage with a large flow rate.

[0047] Compared with the prior art, by arranging a number of partition plates 7 inside the drum 4, a number of independent chambers can be separated inside the drum 4, and each chamber can be dynamically sealed. Water is injected into the filter chamber below through the central water inlet pipe 3, and pressurized filtration can be performed using water pressure, thereby improving the filtration efficiency of the equipment. At the same time, through the intermittent rotation of the drum 4, the switching of each chamber is realized, and continuous filtration operation is achieved. In addition, when the chamber moves to the bottom of the backflushing mechanism 9 for backflushing cleaning, the backflushing sewage is pre-concentrated in the chamber. When the chamber moves to just below the electromagnet 15, the electromagnet 15 applies magnetic attraction to the release component 82 to open it, and the backflushing sewage is discharged in a concentrated manner, thereby better taking away the impurities backflushed.

[0048] In one embodiment provided by the present invention, a sewage trough 12 corresponding to the position of the sewage bin is provided at the top of the central water inlet pipe 3, and a water inlet 13 corresponding to the position of the filter bin is provided at the bottom. Specifically, the sewage trough 12 is arranged inside the central water inlet pipe 3, which can be connected with the sewage bin to discharge backwash sewage while avoiding interference with the rotation of the partition plate 7 in the drum 4; the position and length of the water inlet 13 are adapted to the opening and closing component 81, ensuring that the water to be filtered in the central water inlet pipe 3 can stably enter the filter bin along the water inlet 13, while preventing the water to be filtered from entering the release component 82.

[0049] In another embodiment provided by the present invention, a stepper motor 10 is provided on the inner side of the filter box 1 for driving the drum 4 to rotate intermittently. A sewage pipe and a drainage pipe are provided on the side of the filter box 1 away from the inlet of the central water inlet pipe 3, and the sewage pipe is connected to the sewage trough 12. Specifically, a driving gear 11 is fixedly sleeved on the output shaft of the stepper motor 10, and a transmission gear ring 6 is fixedly sleeved on the outside of the drum 4 that engages with the driving gear 11. The stepper motor 10 provides power and transmits the power through the driving gear 11 and the transmission gear ring 6, which can drive the drum 4 to rotate intermittently. The stepper motor 10 is a prior art and is commercially available. The sewage pipe is fixedly installed on the filter box 1 and can discharge the backwash sewage entering the sewage trough 12 to the outside. The drainage pipe is fixedly installed at the bottom of the filter box 1 away from the inlet of the central water inlet pipe 3 and can discharge the filtered water to the outside. A sealing cover 2 is hinged on the top of the filter box 1, and the filter box 1 can be closed by the sealing cover 2 during filtering operation.

[0050] In another embodiment provided by the present invention, the centralized release mechanism 8 is arranged at one end of the partition plate 7 close to the central water inlet pipe 3, and the opening and closing component 81 is inclined from the end close to the sewage pipe to the end away from the sewage pipe. The opening and closing component 81 includes a closed baffle 811 fixedly connected to the partition plate 7, and a water-passing flap 812 that can only rotate in one direction is hinged on the closed baffle 811. Specifically, a hinge shaft 813 is fixedly connected to the water-passing flap 812, and the hinge shaft 813 is movably installed on the closed baffle 811. Reset torsion springs 814 are provided at both ends of the hinge shaft 813. The spring 814 applies a torsional force to the hinge shaft 813, so that the water-passing flap 812 always has a tendency to close on the closed baffle 811, and the water-passing flap 812 can only rotate on the closed baffle 811 toward the side of the closed baffle 811 away from the central water inlet pipe 3; when the opening and closing component 81 moves to the filter bin position, the opening and closing component 81 is in an inverted state. At this time, the water-passing flap 812 is opened by the dual effects of gravity and the water pressure in the central water inlet pipe 3, so that the filter bin is connected with the central water inlet pipe 3; the opening and closing component 81 is tilted to facilitate the backflushing sewage to flow to the release component 82 position.

[0051] As the preferred technical solution of this embodiment, the release component 82 is located at the end of the opening and closing component 81 away from the sewage pipe. The release component 82 includes a mounting sleeve 821 fixedly mounted on the closed baffle 811. A transmission rod 822 under elastic force is movably mounted in the mounting sleeve 821. A silicone sealing head 824 is provided at the end of the transmission rod 822 close to the closed baffle 811. A drainage hole is provided on the closed baffle 811. The transmission rod 822 can drive the silicone sealing head 824 to seal the drainage hole under the action of elastic force to seal the drainage hole. Specifically, a number of water grooves are provided on the peripheral side of the bottom end of the mounting sleeve 821, so that the backwash sewage on the top of the closed baffle 811 can flow into the sewage trough 12 along the drainage hole; a return spring 825 is movably mounted on the outside of the transmission rod 822. The return spring 825 applies elastic force to the transmission rod 822, so that the return spring 825 has a tendency to move toward the drainage hole, thereby causing the silicone sealing head 824 to seal the drainage hole, thereby realizing the storage of backwash sewage in the sewage bin.

[0052] In another embodiment provided by the present invention, the bottom of the silicone sealing head 824 and the top of the drain hole are provided with sealing cone surfaces that cooperate with each other, and the bottom end of the silicone sealing head 824 is provided with a cleaning valve 826 for cleaning the sealing cone surface on the drain hole. Specifically, by providing the sealing cone surface, the sealing effect of the silicone sealing head 824 on the drain hole is improved. Since the backwash sewage is discharged along the drain hole, impurities will inevitably adhere to the sealing cone surface of the drain hole. By providing the cleaning valve 826, when the silicone sealing head 824 drives the cleaning valve 826 to move down and reset, the cleaning valve 826 contacts the sealing cone surface on the drain hole in advance, and the sealing cone surface on the drain hole is scraped and cleaned by the cleaning valve 826, thereby ensuring the sealing effect of the silicone sealing head 824 on the drain hole.

[0053] In another embodiment provided by the present invention, a magnetic head 823 is provided at one end of the transmission rod 822 away from the closed baffle 811, and an electromagnet 15 corresponding to the position of the magnetic head 823 is provided on the top of the rotating drum 4. When the magnetic head 823 is located at the sewage discharge bin position and is directly below the electromagnet 15, the electromagnet 15 can magnetically attract the magnetic head 823. Specifically, the electromagnet 15 is fixedly installed inside the filter box 1 through the mounting rod. The electromagnet 15 is a prior art and is commercially available. When the filtered chamber moves to the bottom of the backflushing mechanism 9 for backflushing and cleaning, the backflushed sewage is pre-concentrated in the chamber. When the chamber moves to directly below the electromagnet 15, the electromagnet 15 applies a magnetic force to the release component 82 to open it, and the backflushed sewage is discharged in a concentrated manner, thereby better taking away the impurities backflushed out.

[0054] In the prior art, the drum 4 is mostly backwashed and cleaned through a single backwash pipe 921. The backwash water is sprayed in a fan shape along the high-pressure nozzle 922 on the backwash pipe 921. In the fan-shaped spraying area of the backwash water, the water pressure in the middle position is higher, which can achieve effective backwash cleaning of the drum 4. However, the water pressure at the edge position is lower, which makes it difficult to achieve effective backwash cleaning of the drum 4. In this regard, the following embodiment is proposed to solve this problem.

[0055] In one embodiment of the present invention, the backflushing mechanism 9 includes a backflushing assembly 92 for backflushing the drum 4; a water supply assembly for providing backflushing water to the backflushing assembly; a reciprocating drive assembly 93 for driving the backflushing assembly 92 to move back and forth, which is connected to the drum 4 in a transmission manner. Specifically, the water supply assembly includes a pipeline solenoid valve 91 and a backflushing water pump 14. The backflushing water pump 14 is fixedly installed on the filter box 1. One end of the pipeline solenoid valve 91 is connected to two sets of backflushing pipes 921 through a hose, and the other end is connected to the water outlet of the backflushing water pump 14 through a hard pipe. The backflushing water The water inlet of the pump 14 is connected to the lower side of the filter box 1 near the inlet of the central water inlet pipe 3 through a hard pipe. The backwash water pump 14 sucks the filtered water in the filter box 1, and the filtered water can be introduced into the backwash pipe 921. The pipeline solenoid valve 91 and the backwash water pump 14 are both existing technologies and are commercially available. When the drum 4 rotates intermittently, the reciprocating drive assembly 93 can drive the two groups of backwash assemblies 92 to move back and forth along the axis of the drum 4. The cooperation of the two groups of backwash assemblies 92 can avoid the existence of a backwash blind area and improve the effect of backwash cleaning of the drum 4.

[0056] As the preferred technical solution of this embodiment, the recoil assembly 92 is divided into two groups, and the recoil assembly 92 includes a recoil pipe 921 and a high-pressure nozzle 922. The high-pressure nozzle 922 is fixedly installed on the side of the recoil pipe 921 close to the drum 4. The high-pressure nozzles 922 in the two groups of recoil assemblies 92 are staggered. Specifically, the two groups of recoil pipes 921 are driven to move back and forth by the reciprocating drive assembly 93. The high-pressure nozzles 922 on the two groups of recoil pipes 921 complement each other to avoid blind spots when recoiling the drum 4, thereby improving the recoil cleaning effect of the drum 4.

[0057] As the preferred technical solution of this embodiment, the reciprocating drive assembly 93 includes a drive shaft 932 connected to the drum 4, a reciprocating drive dial 934 fixedly mounted on the outside of the drive shaft 932, and a drive roller 935 fixedly connected to the recoil tube 921. When the reciprocating drive dial 934 rotates, the recoil tube 921 can be driven to move back and forth through the drive roller 935. Specifically, the recoil mechanism 9 also includes a mounting bracket 94, which is fixedly mounted on the inner wall of the filter box 1. The reciprocating drive assembly 93 also includes a mounting box 931 and a transmission gear 933. The mounting box 931 is fixedly mounted on the inside of the filter box 1 through the mounting bracket 94. The drive shaft 932 is movably mounted on the inside of the mounting box 931. The gear 933 is fixedly mounted on the end of the drive shaft 932 close to the drum 4, and the transmission gear 933 is meshed with the transmission gear ring 6; there are two groups of transmission rollers 935, and the two groups of transmission rollers 935 are clamped on both sides of the reciprocating drive dial 934, and the reciprocating drive dial 934 is tilted on the outside of the drive shaft 932. When the drive shaft 932 drives the reciprocating drive dial 934 to rotate, the two groups of transmission rollers 935 can drive the recoil tube 921 to reciprocate axially; the recoil tube 921 is movably mounted on the mounting box 931, and the axial cross-section of the mating part of the recoil tube 921 and the mounting box 931 is hexagonal, which ensures that the recoil tube 921 can reciprocate while preventing the recoil tube 921 from rotating axially.

[0058] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A landscape pool drainage filter device, comprising a filter box (1), a backwash mechanism (9), and a drum (4) rotatably arranged inside the filter box (1), characterized in that: Also includes: A central water inlet pipe (3) is fixedly arranged in the filter box (1) and passes through the middle of the drum (4); A partition plate (7) is fixedly arranged on the inner side of the drum (4) and cooperates with the central water inlet pipe (3) to form a plurality of independent chambers, wherein the plurality of independent chambers located in the bottom area of the drum (4) are filter chambers, and the plurality of independent chambers located in the top area of the drum (4) are sewage discharge chambers; A centralized release mechanism (8) is provided between two adjacent groups of partition plates (7), and includes an opening and closing component (81) and a release component (82); When the drum (4) drives the centralized release mechanism (8) to rotate to the position just below the central water inlet pipe (3), the opening and closing component (81) opens, the filter chamber is connected to the central water inlet pipe (3), and when the centralized release mechanism (8) enters the backwash area, the backwash sewage is stored in the sewage discharge chamber. When the centralized release mechanism (8) moves to the position just above the central water inlet pipe (3), the release component (82) opens, and the backwash sewage is discharged in a centralized manner.

2. A landscape pool drainage and filtration device according to claim 1, characterized in that: The top of the central water inlet pipe (3) is provided with a sewage trough (12) corresponding to the position of the sewage discharge bin, and the bottom is provided with a water inlet (13) corresponding to the position of the filter bin.

3. A landscape pool drainage and filtration device according to claim 2, characterized in that: A stepping motor (10) is provided inside the filter box (1) for driving the drum (4) to rotate intermittently. A sewage pipe and a water pipe are provided on the side of the filter box (1) away from the inlet of the central water inlet pipe (3), and the sewage pipe is connected to the sewage trough (12).

4. A landscape pool drainage and filtration device according to claim 3, characterized in that: The centralized release mechanism (8) is arranged at one end of the partition plate (7) close to the central water inlet pipe (3), and the opening and closing assembly (81) is inclined from the end close to the sewage pipe to the end away from the sewage pipe. The opening and closing assembly (81) includes a closed baffle (811) fixedly connected to the partition plate (7), and a water-passing flap (812) that can only rotate in one direction is hinged on the closed baffle (811).

5. A landscape pool drainage and filtration device according to claim 4, characterized in that: The release assembly (82) is located at an end of the opening and closing assembly (81) away from the sewage pipe. The release assembly (82) includes a mounting sleeve (821) fixedly mounted on the closed baffle (811). A transmission rod (822) that is subjected to elastic force is movably mounted in the mounting sleeve (821). A silicone sealing head (824) is provided at one end of the transmission rod (822) close to the closed baffle (811). A drainage hole is provided on the closed baffle (811). The transmission rod (822) is subjected to elastic force and can drive the silicone sealing head (824) to seal the drainage hole.

6. A landscape pool drainage and filtration device according to claim 5, characterized in that: The bottom of the silicone sealing head (824) and the top of the drainage hole are provided with mutually matching sealing conical surfaces, and the bottom end of the silicone sealing head (824) is provided with a cleaning valve (826) for cleaning the sealing conical surface on the drainage hole.

7. A landscape pool drainage and filtration device according to claim 6, characterized in that: A magnetic head (823) is provided at one end of the transmission rod (822) away from the closed baffle (811), and an electromagnet (15) corresponding to the position of the magnetic head (823) is provided on the top of the rotating drum (4). When the magnetic head (823) is located at the sewage discharge bin and directly below the electromagnet (15), the electromagnet (15) can magnetically attract the magnetic head (823).

8. A landscape pool drainage and filtration device according to claim 1, characterized in that: The recoil mechanism (9) comprises a recoil assembly (92) for backwashing the drum (4); a water supply assembly for providing recoil water to the recoil assembly; and a reciprocating drive assembly (93) for driving the recoil assembly (92) to reciprocate, which is in transmission connection with the drum (4).

9. A landscape pool drainage and filtration device according to claim 8, characterized in that: The recoil assemblies (92) are in two groups, and the recoil assemblies (92) include a recoil pipe (921) and a high-pressure nozzle (922). The high-pressure nozzle (922) is fixedly installed on a side of the recoil pipe (921) close to the drum (4). The high-pressure nozzles (922) in the two groups of recoil assemblies (92) are staggered.

10. A landscape pool drainage and filtration device according to claim 9, characterized in that: The reciprocating drive assembly (93) includes a drive shaft (932) connected to the rotating drum (4), a reciprocating drive plate (934) fixedly mounted on the outside of the drive shaft (932), and a drive roller (935) fixedly connected to the recoil tube (921). When the reciprocating drive plate (934) rotates, the recoil tube (921) can be driven to move back and forth via the drive roller (935).

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