Water body filtering device for river channel irrigation device and use method of water body filtering device

Abstract

The invention discloses a water body filtering device for a river channel irrigation device and a using method thereof, and relates to the field of water body filtering, the water body filtering device comprises a device shell, a water inlet pipe is fixedly mounted on one side of the device shell, a water outlet base is fixedly mounted at the bottom of the device shell, and a water drainage pipeline is fixedly mounted on the other side of the device shell; and a transmission assembly and a filtering assembly are fixedly mounted in the device shell. By arranging the filtering box body which can move up and down and can rotate, water flows in four directions relative to the filtering box body, so that all the water can be in contact with activated carbon, the effect of improving the filtering effect is achieved, the problem of insufficient filtering is avoided, the influence on subsequent river irrigation of a water body is avoided, and the service life of the water body is prolonged. And moreover, the filtering efficiency is not influenced on the whole.

Description

Technical Field

[0001] The invention relates to the technical field of water filtering, and in particular to a water filtering device for a river irrigation device and a use method thereof. Background Art

[0002] Water filtration is an important step to ensure water purity. In river irrigation, it is an important step to ensure that irrigation equipment will not be blocked. Water is usually purified by installing filtration devices such as screens, filters, sand filters, slow filters, etc.

[0003] For example, "an irrigation device with filtering function" with publication number CN109673485A includes a main body, a water pump, an inlet pipe, an outlet pipe and a winding reel, as well as a filtering mechanism and a guiding mechanism. The filtering mechanism includes a cover, a support rod, a connecting sleeve, a propeller, a rotating shaft, two cleaning components and at least two water inlet holes. The guiding mechanism includes a driving component, a sliding rod, a transmission component, a driving block and a guide ring. The cleaning component includes a first connecting rod, a spring, a movable sleeve, a second connecting rod and a cleaning block.

[0004] However, in the prior art, activated carbon filtering devices are usually static structures, and their filtering method is that water flows through activated carbon, and the activated carbon is used to adsorb impurities in the water, and finally the purpose of filtering is achieved. However, the efficiency of this filtering method is affected by the flow rate of the water. If the flow rate is too fast, it is easy to cause insufficient filtration, and if the flow rate is too slow, it is easy to cause low efficiency, which is not conducive to rapid filtration. In addition, if the flow rate is too fast, it is easy to cause part of the water to flow out without sufficient contact with the activated carbon, so that it cannot be fully filtered, and some impurities will remain, which will affect subsequent irrigation. Summary of the invention

[0005] The purpose of the present invention is to provide a water filtering device for river irrigation device and its use method, so as to solve the problem raised in the above background technology that too fast flow rate easily leads to insufficient filtration, while too slow flow rate easily leads to low efficiency and is not conducive to rapid filtration.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water filtering device for a river irrigation device and a method for using the same, comprising a device housing, a water inlet pipe is fixedly installed on one side of the device housing, a water outlet base is fixedly installed on the bottom of the device housing, a water discharge pipe is fixedly installed on the other side of the device housing, a transmission assembly and a filter assembly are fixedly installed inside the device housing, the transmission assembly is rotatably connected to the filter assembly, and the water inlet pipe is connected to the filter assembly; The filter assembly includes a separation cylinder, a secondary cylinder, a transmission rod, a guide pipe and a filter box, a positioning strip is fixedly installed on one side of the separation cylinder, the secondary cylinder is fixedly installed inside the separation cylinder, two one-way valves are arranged between the secondary cylinder and the separation cylinder, and one of the one-way valves is located at the bottom of the secondary cylinder, and the other one-way valve is located on the side of the secondary cylinder, the guide pipe is fixedly installed on the inner wall of the secondary cylinder, one end of the filter box is fixedly connected to one end of the transmission rod, and the filter box is slidably connected to the inside of the guide pipe; The transmission rod is fixedly provided with protruding rods on both sides, a guide hole is provided at the junction of the filter box and the transmission rod, an inclined groove is provided on the hole wall of the guide hole, the protruding rod is located inside the inclined groove, and a through hole is provided at the bottom of the filter box.

[0007] Preferably, an opening is provided on one side of the guide pipe, a fixing plate is fixedly mounted on the inner wall of the secondary cylinder, an arc plate is fixedly mounted on one side of the fixing plate, the center of the arc plate is on the same straight line as the center of the guide pipe, and the arc plate is located inside the opening.

[0008] Preferably, a docking rod is fixedly mounted on the outer wall of the filter box, and the docking rod is located between the arc plate and the guide pipe.

[0009] Preferably, the transmission assembly includes a gear shaft and a fixed frame, a reduction motor is fixedly installed on the top of the device housing, the output end of the reduction motor is fixedly connected to a rotating rod, one end of the rotating rod is fixedly installed with a bevel gear, one end of the gear shaft is meshed and connected with the bevel gear, one end of the gear shaft is rotatably connected to the inside of the fixed frame, and the fixed frame is fixedly installed on the inner wall of the device housing.

[0010] Preferably, a connecting gear is fixedly installed at one end of the gear shaft, and a first gear and a second gear are rotatably installed inside the fixed frame. The first gear and the second gear are respectively located on both sides of the connecting gear, and the first gear and the second gear are meshed and connected with the connecting gear.

[0011] Preferably, a guide frame is fixedly mounted on the other side of the fixed frame, and a gear rod is slidably connected inside the guide frame.

[0012] Preferably, an extension rod is fixedly connected to the bottom of the gear rod, and one end of the extension rod is rotatably connected to one end of the transmission rod.

[0013] Preferably, a sector gear is fixedly mounted on one end of the first gear and one end of the second gear, the gear rod is located between the two sector gears, and the two sector gears are meshedly connected with the gear rod.

[0014] A method for using a water filtering device for a river irrigation device comprises the following steps: S1, passing water from the water inlet pipe into the separation cylinder of the filter assembly, then starting the reduction motor, which drives the filter assembly through the transmission assembly to start operation; S2. The transmission rod is pushed downward by the transmission assembly, and the transmission rod drives the filter box through the convex rod. During the downward movement of the filter box, the water in the auxiliary cylinder will enter the filter box from the through hole. The filter box is provided with activated carbon. At this time, the one-way valve at the bottom of the auxiliary cylinder is closed, and the one-way valve on the side is open, allowing the water in the separation cylinder to enter the auxiliary cylinder; S3. The water in the filter box will fully contact with the activated carbon. When the docking rod moves to the corner of the opening, the convex rod continues to move downward, forcing the filter box to rotate through the inclined groove, so that the water and the activated carbon are fully in contact; S4, the transmission assembly then drives the transmission rod upward, and the transmission rod then drives the filter box, using suction to open the one-way valve at the bottom of the auxiliary cylinder, close the one-way valve on the side, and let the water flow from the auxiliary cylinder into the water outlet base, and finally flow out from the device housing, and the water in the filter box flows out from the through hole; S5. Repeat steps S2, S3 and S4.

[0015] Preferably, in step S1, the reduction motor drives the filter assembly through the transmission assembly to start operation, and further comprises the following steps: S11, the reduction motor drives the bevel gear through the rotating rod to achieve the purpose of driving the gear shaft, and the gear shaft then drives the first gear and the second gear to rotate in the same direction at the same time; S12, during the rotation of the first gear and the second gear, the sector gear on the first gear will first rotate away from the gear rod, and the sector gear on the second gear will directly push the gear rod to move downward, thereby driving the transmission rod to move downward; S13. After the first gear and the second gear rotate half a circle, the sector gear on the second gear will turn away from the gear rod, and the sector gear on the first gear will directly push the gear rod to move upward, thereby achieving the purpose of driving the transmission rod to move upward.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a filter box that can move up and down and can also rotate is provided. In the process of filtering the water body, the filter box first moves downward, so that the water is in a state of moving upward relative to the filter box, and then the filter box is rotated again, so that the water is in a state of moving horizontally relative to the filter box, and then the filter box moves upward again, and finally returns to the initial state. During the whole process, the water has four flow directions relative to the filter box, so that all the water can contact with the activated carbon, which plays a role in improving the filtering effect, avoiding the problem of insufficient filtration, avoiding affecting the subsequent use of the water body for river irrigation, and does not affect the filtering efficiency as a whole.

[0017] 2. In the present invention, the transmission assembly completes the operation of reciprocatingly driving the transmission rod through the fan gears at the ends of the first gear and the second gear. The first gear and the second gear are both meshed and connected with the connecting gear. During the rotation of the connecting gear, the two fan gears will drive the gear rod in turn, wherein the fan gear on the first gear is used to drive the gear rod to move upward, and the fan gear on the second gear is used to push the gear rod to move downward, thereby ensuring the stability of the transmission assembly during operation.

[0018] 3. In the present invention, an opening is provided on one side of the guide pipe, which is used to determine the moving route of the docking rod, and the docking rod is installed on the filter box body, directly corresponding to the state of the filter box body, and an arc-shaped rectangular route is reserved between the arc plate and the guide pipe, thereby achieving the purpose of determining the moving route and the first rotation direction of the movable box body, and improving the stability of the movable box body during movement and rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a water filtering device for a river irrigation device of the present invention; Figure 2 It is a side view of a transmission component and a filtering component of a water filtering device for a river irrigation device of the present invention; Figure 3 A top view of a transmission component and a filter component of a water filter device for a river irrigation device according to the present invention; Figure 4 This is a schematic structural diagram of a first gear, a second gear and a sector gear of a water filtering device for a river irrigation device of the present invention; Figure 5 It is a schematic diagram of the internal structure of a separation cylinder of a water filtering device for a river irrigation device of the present invention; Figure 6 This is a schematic diagram of the guiding pipeline structure of a water filtering device used in a river irrigation device of the present invention; Figure 7 It is a schematic diagram of the disassembly of the guide pipe, filter box and curved plate structure of a water filtering device used in a river irrigation device of the present invention; Figure 8 This is a schematic diagram of the internal structure of a filter box of a water filtering device used in a river irrigation device of the present invention.

[0020] In the figure: 1. device housing; 2. reduction motor; 3. water inlet pipe; 4. water discharge pipe; 5. water outlet base; 6. transmission assembly; 7. filter assembly; 8. rotating rod; 9. bevel gear; 61. gear shaft; 62. fixed frame; 63. connecting gear; 64. first gear; 65. second gear; 66. fan gear; 67. gear rod; 68. guide frame; 69. extension support rod; 71. separation cylinder; 72. positioning strip; 73. auxiliary cylinder; 74. transmission rod; 75. guide pipe; 76. filter box; 77. docking rod; 78. opening; 79. fixed plate; 710. arc plate; 711. one-way valve; 712. convex rod; 713. through hole; 714. inclined groove; 715. guide hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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.

[0022] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown: A water filtering device for a river irrigation device and a method of using the same, comprising a device housing 1, a water inlet pipe 3 is fixedly installed on one side of the device housing 1, a water outlet base 5 is fixedly installed on the bottom of the device housing 1, a water discharge pipe 4 is fixedly installed on the other side of the device housing 1, a transmission assembly 6 and a filter assembly 7 are fixedly installed inside the device housing 1, the transmission assembly 6 is rotatably connected to the filter assembly 7, and the water inlet pipe 3 is connected to the filter assembly 7; The filter assembly 7 includes a separation cylinder 71, a secondary cylinder 73, a transmission rod 74, a guide pipe 75 and a filter box 76. A positioning strip 72 is fixedly installed on one side of the separation cylinder 71. The secondary cylinder 73 is fixedly installed inside the separation cylinder 71. Two one-way valves 711 are arranged between the secondary cylinder 73 and the separation cylinder 71, and one of the one-way valves 711 is located at the bottom of the secondary cylinder 73, and the other one-way valve 711 is located on the side of the secondary cylinder 73. The guide pipe 75 is fixedly installed on the inner wall of the secondary cylinder 73. One end of the filter box 76 is fixedly connected to one end of the transmission rod 74, and the filter box 76 is slidably connected to the inside of the guide pipe 75. A protruding rod 712 is fixedly installed on both sides of the transmission rod 74, a guide hole 715 is opened at the intersection of the filter box 76 and the transmission rod 74, an inclined groove 714 is opened on the hole wall of the guide hole 715, the protruding rod 712 is located inside the inclined groove 714, and a through hole 713 is opened at the bottom of the filter box 76.

[0023] In this embodiment, the device housing 1 is used to accommodate all parts and various structures, the water outlet base 5 is used to discharge filtered water, the water inlet pipe 3 is used to introduce water to be treated, and the water discharge pipe 4 is used to discharge the residual water inside when the device is not in operation; When in use, the water to be treated is passed into the filter assembly 7 from the water inlet pipe 3, and then the filter assembly 7 is driven by the transmission assembly 6 to operate. The filter assembly 7 is mainly composed of a separation cylinder 71, a sub-cylinder 73 and a filter box 76. When filtering the water, the transmission rod 74 first pushes the filter box 76 downward, so that the water is in an upward moving state relative to the filter box 76, and then the filter box 76 rotates again, so that the water is in a horizontal moving state relative to the filter box 76, and then the transmission rod 74 drives the filter box 76 upward again, so that the water is in a downward moving state relative to the filter box 76, and finally the filter box 76 returns to the initial state, so that the water is in a horizontal moving state relative to the filter box 76 again; By making the water fully contact with the activated carbon, the filtering effect is improved, and the filtering efficiency can also be guaranteed. When the filter box 76 moves downward, the pressure of the water will close the one-way valve 711 at the bottom and open the one-way valve 711 at the side, allowing the water to flow into the auxiliary cylinder 73. The water will be pressed into the filter box 76 from the through hole 713. When the filter box 76 moves upward, the one-way valve 711 at the bottom will be opened and the one-way valve 711 at the side will be closed. At this time, the water in the filter box 76 will flow into the auxiliary cylinder 73 from the through hole 713, and then flow into the water outlet base 5 through the one-way valve 711. The rotation of the filter box 76 is achieved by the cooperation between the protruding rod 712 and the inclined groove 714. During the up and down movement of the filter box 76, no rotation occurs. Later, when the filter box 76 moves to the top and bottom of the sub-cylinder 73 and cannot move, the transmission rod 74 continues to move along the direction of the guide hole 715, and the protruding rod 712 pushes the filter box 76 through the inclined groove 714.

[0024] Embodiment 2: According to Figure 5 , Figure 6 and Figure 7 As shown, an opening 78 is provided on one side of the guide pipe 75, a fixing plate 79 is fixedly installed on the inner wall of the secondary tube 73, an arc plate 710 is fixedly installed on one side of the fixing plate 79, the center of the arc plate 710 and the center of the guide pipe 75 are located on the same straight line, the arc plate 710 is located inside the opening 78, and a docking rod 77 is fixedly installed on the outer wall of the filter box 76, and the docking rod 77 is located between the arc plate 710 and the guide pipe 75.

[0025] In this embodiment, the opening 78 is mainly used to determine the moving route and moving range of the filter box 76. The arc plate 710 is located in the opening 78, and an arc-shaped rectangular gap is separated from the guide pipe 75. The docking rod 77 is located between the arc plate 710 and the guide pipe 75, which can determine the moving range of the filter box 76.

[0026] Embodiment 3: According to Figure 2 , Figure 3 and Figure 4 As shown, the transmission assembly 6 includes a gear shaft 61 and a fixed frame 62. The top of the device housing 1 is fixedly installed with a reduction motor 2. The output end of the reduction motor 2 is fixedly connected with a rotating rod 8. One end of the rotating rod 8 is fixedly installed with a bevel gear 9. One end of the gear shaft 61 is meshed with the bevel gear 9. One end of the gear shaft 61 is rotatably connected to the inside of the fixed frame 62. The fixed frame 62 is fixedly installed on the inner wall of the device housing 1. One end of the gear shaft 61 is fixedly installed with a connecting gear 63. The inside of the fixed frame 62 is rotatably installed with a first gear 64 and a second gear 65. The first gear 64 and the second gear 65 are rotatably installed. The wheels 65 are respectively located on both sides of the connecting gear 63, and the first gear 64 and the second gear 65 are both meshed and connected with the connecting gear 63. A guide frame 68 is fixedly installed on the other side of the fixed frame 62. A gear rod 67 is slidably connected inside the guide frame 68. An extension support rod 69 is fixedly connected to the bottom of the gear rod 67. One end of the extension support rod 69 is rotatably connected to one end of the transmission rod 74. A sector gear 66 is fixedly installed on one end of the first gear 64 and one end of the second gear 65. The gear rod 67 is located between the two sector gears 66, and the two sector gears 66 are both meshed and connected with the gear rod 67.

[0027] In this embodiment, the reduction motor 2 drives the filter assembly 7 through the transmission assembly 6. During the driving process, the reduction motor 2 drives the gear shaft 61 through the bevel gear 9 at the end of the rotating rod 8. Since the first gear 64 and the second gear 65 are installed in the fixed frame 62 and are located on both sides of the connecting gear 63, the gear shaft 61 will simultaneously drive the first gear 64 and the second gear 65 to rotate in the same direction through the connecting gear 63. When the first gear 64 and the second gear 65 start to rotate half a circle, the sector gear 66 on the second gear 65 will first push the gear rod 67 downward, and after rotating half a circle, the sector gear 66 on the first gear 64 will drive the gear rod 67 upward to move upward, so as to achieve the purpose of reciprocatingly pushing the transmission rod 74; The gear rod 67 is rotatably connected to the transmission rod 74 via an extended support rod 69 , which ensures normal transmission without affecting the rotation of the filter box 76 , and the moving direction of the gear rod 67 is determined by the guide frame 68 .

[0028] The use method and working principle of the device are as follows: first, water is introduced into the separation cylinder 71 of the filter assembly 7 from the water inlet pipe 3, and then the reduction motor 2 is started, and the reduction motor 2 drives the filter assembly 7 through the transmission assembly 6 to start operation; The reduction motor 2 drives the bevel gear 9 through the rotating rod 8, and the gear shaft 61 drives the first gear 64 and the second gear 65 to rotate in the same direction at the same time. During the rotation of the first gear 64 and the second gear 65, the fan gear 66 on the first gear 64 will first turn away from the gear rod 67, and the fan gear 66 on the second gear 65 will directly push the gear rod 67 to move downward. During the downward push of the transmission rod 74 by the transmission assembly 6, the convex rod 712 will drive the filter box 76, and the moisture in the auxiliary cylinder 73 will be The water in the filter box 76 will enter from the through hole 713. The filter box 76 is provided with activated carbon. At this time, the one-way valve 711 at the bottom of the auxiliary cylinder 73 is closed, and the one-way valve 711 on the side is opened, so that the water in the separation cylinder 71 can enter the auxiliary cylinder 73. The water in the filter box 76 will fully contact with the activated carbon. When the docking rod 77 moves to the corner of the opening 78, the convex rod 712 continues to move downward, and forces the filter box 76 to rotate through the inclined groove 714, so that the water body is fully in contact with the activated carbon. After the first gear 64 and the second gear 65 rotate half a circle, the sector gear 66 on the second gear 65 will turn away from the gear rod 67, and the sector gear 66 on the first gear 64 will directly push the gear rod 67 to move upward, so as to drive the transmission rod 74 to move upward. The transmission rod 74 then drives the filter box 76 to open the one-way valve 711 at the bottom of the auxiliary cylinder 73 by suction, and close the one-way valve 711 on the side, so that the water flows from the auxiliary cylinder 73 into the water outlet base 5, and finally flows out from the device housing 1, and the water in the filter box 76 flows out from the through hole 713; Finally, the water body can be continuously filtered by repeating the above process.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water filtering device for a river irrigation device, comprising a device housing (1), a water inlet pipe (3) fixedly mounted on one side of the device housing (1), a water outlet base (5) fixedly mounted on the bottom of the device housing (1), and a water discharge pipe (4) fixedly mounted on the other side of the device housing (1), characterized in that: A transmission assembly (6) and a filter assembly (7) are fixedly mounted inside the device housing (1); the transmission assembly (6) and the filter assembly (7) are rotationally connected, and the water inlet pipe (3) is connected to the filter assembly (7); The filter assembly (7) comprises a separation cylinder (71), a secondary cylinder (73), a transmission rod (74), a guide pipe (75) and a filter box (76); a positioning strip (72) is fixedly mounted on one side of the separation cylinder (71); the secondary cylinder (73) is fixedly mounted inside the separation cylinder (71); two one-way valves (711) are arranged between the secondary cylinder (73) and the separation cylinder (71); one of the one-way valves (711) is located at the bottom of the secondary cylinder (73) and the other one-way valve (711) is located on the side of the secondary cylinder (73); the guide pipe (75) is fixedly mounted on the inner wall of the secondary cylinder (73); one end of the filter box (76) is fixedly connected to one end of the transmission rod (74); and the filter box (76) is slidably connected inside the guide pipe (75); A convex rod (712) is fixedly mounted on both sides of the transmission rod (74); a guide hole (715) is provided at the intersection of the filter box (76) and the transmission rod (74); an inclined groove (714) is provided on the hole wall of the guide hole (715); the convex rod (712) is located inside the inclined groove (714); and a through hole (713) is provided at the bottom of the filter box (76).

2. A water filtering device for river irrigation device according to claim 1, characterized in that: An opening (78) is provided on one side of the guide pipe (75); a fixing plate (79) is fixedly mounted on the inner wall of the secondary tube (73); an arc-shaped plate (710) is fixedly mounted on one side of the fixing plate (79); the center of the arc-shaped plate (710) and the center of the guide pipe (75) are located on the same straight line; the arc-shaped plate (710) is located inside the opening (78).

3. A water filtering device for river irrigation device according to claim 2, characterized in that: A docking rod (77) is fixedly mounted on the outer wall of the filter box (76); the docking rod (77) is located between the arc plate (710) and the guide pipe (75).

4. A water filtering device for river irrigation device according to claim 3, characterized in that: The transmission assembly (6) comprises a gear shaft (61) and a fixed frame (62); a reduction motor (2) is fixedly mounted on the top of the device housing (1); a rotating rod (8) is fixedly connected to the output end of the reduction motor (2); a bevel gear (9) is fixedly mounted on one end of the rotating rod (8); one end of the gear shaft (61) is meshingly connected to the bevel gear (9); one end of the gear shaft (61) is rotatably connected to the inside of the fixed frame (62); and the fixed frame (62) is fixedly mounted on the inner wall of the device housing (1).

5. The water filtering device for river irrigation device according to claim 4, characterized in that: A connecting gear (63) is fixedly mounted on one end of the gear shaft (61), and a first gear (64) and a second gear (65) are rotatably mounted inside the fixed frame (62); the first gear (64) and the second gear (65) are respectively located on both sides of the connecting gear (63), and the first gear (64) and the second gear (65) are both meshingly connected with the connecting gear (63).

6. A water filtering device for river irrigation device according to claim 5, characterized in that: A guide frame (68) is fixedly mounted on the other side of the fixed frame (62), and a gear rod (67) is slidably connected inside the guide frame (68).

7. A water filtering device for river irrigation device according to claim 6, characterized in that: An extension support rod (69) is fixedly connected to the bottom of the gear rod (67), and one end of the extension support rod (69) is rotatably connected to one end of the transmission rod (74).

8. The water filtering device for river irrigation device according to claim 7, characterized in that: A sector gear (66) is fixedly mounted on one end of the first gear (64) and one end of the second gear (65); the gear rod (67) is located between the two sector gears (66); and the two sector gears (66) are meshingly connected to the gear rod (67).

9. A method for using a water filtering device for a river irrigation device, characterized in that: The water filtering device for a river irrigation device according to any one of claims 1 to 8 above is used, comprising the following steps: S1, passing water from the water inlet pipe (3) into the separation cylinder (71) of the filter assembly (7), then starting the reduction motor (2), and the reduction motor (2) drives the filter assembly (7) through the transmission assembly (6) to start operation; S2, the transmission rod (74) is pushed downward by the transmission assembly (6), and the transmission rod (74) drives the filter box (76) through the protruding rod (712). During the downward movement of the filter box (76), the water in the auxiliary cylinder (73) enters the filter box (76) through the through hole (713). Activated carbon is arranged in the filter box (76). At this time, the one-way valve (711) at the bottom of the auxiliary cylinder (73) is in a closed state, and the one-way valve (711) on the side is in an open state, so that the water in the separation cylinder (71) enters the auxiliary cylinder (73); S3, the water in the filter box (76) is in full contact with the activated carbon. When the docking rod (77) moves to the corner of the opening (78), the protruding rod (712) continues to move downward, forcing the filter box (76) to rotate through the inclined groove (714), so that the water is in full contact with the activated carbon; S4, the transmission assembly (6) then drives the transmission rod (74) upward, and the transmission rod (74) then drives the filter box (76), using suction to open the one-way valve (711) at the bottom of the auxiliary cylinder (73), and close the one-way valve (711) on the side, so that water flows from the auxiliary cylinder (73) into the water outlet base (5), and finally flows out from the device housing (1), and the water in the filter box (76) flows out from the through hole (713); S5. Repeat steps S2, S3 and S4.

10. The method for using the water filtering device for a river irrigation device according to claim 9, characterized in that: In step S1, the reduction motor (2) drives the filter component (7) through the transmission component (6) to start operation, which also includes the following steps: S11, the reduction motor (2) drives the bevel gear (9) through the rotating rod (8) to achieve the purpose of driving the gear shaft (61), and the gear shaft (61) then drives the first gear (64) and the second gear (65) to rotate in the same direction at the same time; S12, during the rotation of the first gear (64) and the second gear (65), the sector gear (66) on the first gear (64) will first rotate away from the gear rod (67), and the sector gear (66) on the second gear (65) will directly push the gear rod (67) to move downward, thereby driving the transmission rod (74) to move downward; S13. After the first gear (64) and the second gear (65) rotate half a circle, the sector gear (66) on the second gear (65) rotates away from the gear rod (67), and the sector gear (66) on the first gear (64) directly pushes the gear rod (67) to move upward, thereby driving the transmission rod (74) to move upward.

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