Bidirectional flow channel type agricultural water-saving filter for furrow irrigation

Abstract

The invention discloses a bidirectional flow channel type agricultural water-saving filter for furrow irrigation. The bidirectional flow channel type agricultural water-saving filter comprises a filter assembly, a clean water pipe, a sewage pipe and a bidirectional raw water pipe, according to the lamination assembly, the second elastic sheet and the third elastic sheet are additionally arranged on the lamination body, and the elastic force of the elastic sheets is utilized to ensure that the lamination body can be completely separated after losing pressure, so that the lamination assembly can be washed clean in a short time, and the water consumption is reduced; when the valve element rotates, the adjusting ring can be driven through the fixing ring, the adjusting ring exerts pressure on the lamination bodies through the pressing ring, the lamination bodies can be tightly attached, after the valve element is reset, the lamination bodies can be automatically separated, the process does not depend on water pressure, an additional supercharging device does not need to be additionally arranged, and the equipment cost and operation energy consumption can be reduced; in the filtering state, the through groove and the inclined hole serve as water inlets, in the backwashing state, the through groove can be sealed by the blocking piece, and the inclined hole with the small hole diameter serves as a water outlet, so that the filtering flux and the backwashing pressure are both considered.

Description

Technical Field

[0001] This invention relates to the field of filter technology, specifically to a two-way flow channel type agricultural water-saving filter for furrow irrigation. Background Technology

[0002] In modern agricultural water-saving irrigation technology, furrow irrigation has become an important irrigation method for crop cultivation in arid and semi-arid regions due to its advantages of precise water supply and reduced water evaporation. Disc filters are a key component of furrow irrigation systems, used to filter impurities such as silt, weeds, and insect eggs from irrigation water, ensuring the smooth operation of irrigation pipes and sprinklers. This is of great significance for improving irrigation water utilization and extending equipment lifespan. Existing disc filters mainly consist of disc assemblies, a housing, a spring-loaded clamping mechanism, inlet and outlet ports, and backwash control components. The disc assembly is the core filtration unit, composed of multiple grooved discs stacked together. These grooves intersect to form micron-level filtration gaps to intercept impurities. The housing protects the internal components and connects the inlet and outlet pipes. The spring-loaded clamping mechanism uses elasticity to tightly press the disc assembly together, ensuring a tight seal during filtration. The backwash control components are responsible for switching between filtration and backwashing states. Its working principle is based on filtration and backwashing circulation. In the filtration stage, water flows in from the filter inlet. As it passes through the gaps between the discs, impurities such as mud, weeds, and insect eggs are intercepted. Clean water flows out from the outlet for irrigation. As impurities accumulate, the pressure difference between the filter inlet and outlet increases. When the set threshold is reached, the backwashing stage begins. The water flow direction is switched by the valve, and the backwash water flows in from the outlet, overcoming the spring force to push the discs apart, widening the gaps between the discs. The high-speed water flow washes the surface of the discs and the gaps, discharging the trapped impurities from the drain outlet. After the backwashing is completed, the spring pushes the discs back to their original position, and the filter returns to its filtration state.

[0003] However, existing disc filters still have the following problems in practical applications: 1. During backwashing, impurities can easily get stuck between the discs or excessive friction can cause incomplete separation, making it difficult to completely remove the trapped impurities. This requires increasing the rinsing time, which in turn increases the water consumption for backwashing; 2. The backwashing process relies on water pressure to overcome the spring force to separate the discs. To ensure sufficient backwashing water pressure, an additional booster device is usually required, leading to increased equipment costs and operating energy consumption; 3. Since the disc filter needs to have a high water flow rate during filtration, the frame on which the discs are installed needs to have a large hole design. However, during backwashing, if the hole diameter is too large, the water flow impact force will be insufficient, making it difficult to completely remove the impurities trapped on the discs. To balance these two aspects, existing disc filters often adopt a compromise solution, resulting in neither the filtration flux nor the backwashing pressure reaching the ideal state. Summary of the Invention

[0004] The purpose of this invention is to provide a two-way flow channel type agricultural water-saving filter for furrow irrigation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a two-way flow channel type agricultural water-saving filter for furrow irrigation, comprising a filter assembly, a clean water pipe, a sewage pipe, and a two-way raw water pipe. Multiple filter assemblies are conductively connected to the two-way raw water pipe, and the filter assemblies are respectively conductively connected to the clean water pipe and the sewage pipe. Each filter assembly includes a housing, a sleeve fixedly connected inside the housing, a fixing frame disposed inside the sleeve, and the fixing frame fixedly connected inside the housing. Multiple first spring plates are evenly distributed on the fixing frame, and baffles are fixedly connected to the first spring plates. The baffles are disposed on the inner wall of the sleeve. A through groove is opened on the sleeve corresponding to the position of the baffle, and multiple oblique holes are evenly distributed on the sleeve.

[0006] Preferably, the sleeve is equipped with a stacking assembly, which includes a retaining ring, a guide rod, a stacking body, a groove, a second spring and a third spring. Multiple stacking bodies are slidably connected to the sleeve, and multiple second springs are evenly distributed on the stacking bodies. A third spring is provided at the bottom end of the second spring and is fixedly connected to the stacking body.

[0007] Preferably, a retaining ring is fitted onto the sleeve, and the retaining ring is disposed at the top of the stacked body. Multiple guide rods are fixedly connected to the lower surface of the retaining ring, and the stacked body is slidably connected to the guide rods. The second spring is disposed between two guide rods.

[0008] Preferably, multiple grooves are evenly distributed on both outer walls of the stacked body.

[0009] Preferably, a backwash pipe is conductively fixed on the housing, and the input end of the backwash pipe is conductively connected to the clean water pipe; a drain pipe is conductively fixed on the housing, and the output end of the drain pipe is conductively connected to the sewage pipe; a water outlet pipe is conductively fixed on the housing, and the output end of the water outlet pipe is conductively connected to the clean water pipe; and a water inlet pipe is conductively fixed on the housing, and the input end of the water inlet pipe is conductively connected to the bidirectional raw water pipe.

[0010] Preferably, a motor is fixedly connected to the housing, a valve core is fixedly connected to the output end of the motor, and the valve core is rotatably connected inside the housing. A liquid flow channel is opened on one side of the outer wall of the valve core, and a notch is opened on the other side of the outer wall of the valve core.

[0011] Preferably, a connecting sleeve is fixedly connected to the upper surface of the valve core, and the connecting sleeve is in communication with the liquid flow channel, and the connecting sleeve is sleeved inside the sleeve.

[0012] Preferably, a fixing ring is fixedly connected to the upper surface of the valve core, and the fixing ring is sleeved on the sleeve. Multiple protruding teeth are evenly distributed on the upper surface of the fixing ring. An adjusting ring is provided at the top of the fixing ring and is slidably connected to the sleeve. A tooth groove is provided on the lower surface of the adjusting ring at the position corresponding to the protruding teeth.

[0013] Preferably, the sleeve is provided with a guide groove, and a guide block is fixedly connected to the position of the guide groove in the adjusting ring, and the guide block is slidably connected in the guide groove.

[0014] Preferably, the top of the adjusting ring is provided with a pressure ring, and the pressure ring is slidably connected to the sleeve, and the pressure ring is provided at the bottom end of the stacked body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The stacked plate assembly of the present invention adds a second and a third spring plate to the stacked plate body. The elasticity of the spring plate ensures that the stacked plate body can be completely separated after the pressure is lost, thereby achieving a clean rinse in a short time and reducing water consumption; When the valve core rotates, it can drive the adjusting ring through the fixing ring. The adjusting ring applies pressure to the stacked plate body through the pressure ring, so that the stacked plate body fits tightly. After the valve core is reset, the stacked plate body can be automatically separated. This process does not depend on water pressure, so there is no need to add an additional pressurization device, which can reduce equipment costs and operating energy consumption; In the filtration state, both the through groove and the inclined hole serve as water inlets. In the backwashing state, the baffle can close the through groove and use the small-diameter inclined hole as the water outlet, thereby achieving a balance between filtration throughput and backwashing pressure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the main sectional view of the filter assembly of the present invention;

[0018] Figure 3 for Figure 2 Enlarged view of the structure of region A in the middle;

[0019] Figure 4 This is a three-dimensional structural diagram of the valve core of the present invention;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the sleeve of the present invention;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the adjustment ring of the present invention;

[0022] Figure 7 This is a three-dimensional structural diagram of the fixing frame of the present invention;

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the stacked assembly of the present invention;

[0024] Figure 9 This is a schematic diagram of the three-dimensional structure of the stacked body of the present invention.

[0025] In the diagram: 1. Filter assembly; 11. Housing; 111. Backwash pipe; 112. Drain pipe; 113. Outlet pipe; 114. Inlet pipe; 12. Motor; 121. Valve core; 122. Liquid flow channel; 123. Notch; 124. Connecting sleeve; 125. Fixing ring; 126. Protruding tooth; 13. Sleeve; 131. Through groove; 132. Inclined hole; 133. Guide groove; 14. Adjusting ring; 141. Guide block; 142. Tooth groove; 15. Pressure ring; 16. Fixing frame; 161. First spring; 162. Baffle; 17. Stacked plate assembly; 171. Baffle ring; 172. Guide rod; 173. Stacked plate body; 174. Groove; 175. Second spring; 176. Third spring; 2. Clean water pipe; 3. Sewage pipe; 4. Two-way raw water pipe. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see the appendix Figure 1 - Appendix Figure 9An embodiment of the present invention provides a two-way flow channel type agricultural water-saving filter for furrow irrigation, comprising a filter assembly 1, a clean water pipe 2, a sewage pipe 3, and a two-way raw water pipe 4. Multiple filter assemblies 1 are conductively connected to the two-way raw water pipe 4, and the filter assemblies 1 are respectively conductively connected to the clean water pipe 2 and the sewage pipe 3. Each filter assembly 1 includes a housing 11, a sleeve 13 fixedly connected inside the housing 11, a fixing frame 16 disposed inside the sleeve 13, and the fixing frame 16 fixedly connected inside the housing 11. Multiple first spring plates 161 are evenly distributed on the fixing frame 16, and baffle plates 162 are fixedly connected to the first spring plates 161, and the baffle plates 162 are disposed on the sleeve 1. On the inner wall of sleeve 13, a through groove 131 is provided at the position corresponding to the baffle 162. Multiple oblique holes 132 are evenly distributed on sleeve 13. Filter assembly 1 is used to filter raw water. Clean water pipe 2 is used to discharge the clean water filtered by filter assembly 1. Sewage pipe 3 is used to discharge the sewage generated during backwashing of filter assembly 1. Two-way raw water pipe 4 is used to feed raw water to be filtered into filter assembly 1. Housing 11 is the outer shell of filter assembly 1. Fixing bracket 16 is used to install the first spring 161. The first spring 161 is used to provide a reset spring force for baffle 162. Baffle 162 is used to unidirectionally seal the through groove 131. The through groove 131 and the oblique holes 132... Both 2 allow filtered water to pass through, and the inclined hole 132 can serve as the outlet for backwash water. A stacked plate assembly 17 is installed on the sleeve 13. The stacked plate assembly 17 includes a retaining ring 171, a guide rod 172, a stacked plate body 173, a groove 174, a second spring 175, and a third spring 176. Multiple stacked plate bodies 173 are slidably connected to the sleeve 13. Multiple second springs 175 are evenly distributed on the stacked plate bodies 173. A third spring 176 is provided at the bottom end of each second spring 175 and is fixedly connected to the stacked plate body 173. The second springs 175 and the third spring 176 are used to support the stacked plate body 173. The separation provides power, and the stacked plate body 173 is used to filter raw water; a retaining ring 171 is sleeved on the sleeve 13, and the retaining ring 171 is set at the top of the stacked plate body 173. Multiple guide rods 172 are fixedly connected to the lower surface of the retaining ring 171, and the stacked plate body 173 is slidably connected to the guide rods 172. The second spring piece 175 is set between the two guide rods 172. The retaining ring 171 is used to install the guide rods 172, and the guide rods 172 are used to limit and guide the second spring piece 175 and the third spring piece 176; multiple grooves 174 are evenly distributed on the outer walls of both sides of the stacked plate body 173. The grooves 174 are used to allow water flow and intercept impurities.A backwash pipe 111 is conductively fixed to the housing 11, and the input end of the backwash pipe 111 is conductively connected to the clean water pipe 2. A drain pipe 112 is conductively fixed to the housing 11, and the output end of the drain pipe 112 is conductively connected to the sewage pipe 3. A water outlet pipe 113 is conductively fixed to the housing 11, and the output end of the water outlet pipe 113 is conductively connected to the clean water pipe 2. A water inlet pipe 114 is conductively fixed to the housing 11, and the input end of the water inlet pipe 114 is conductively connected to the bidirectional raw water pipe 4. The backwash pipe 111 is used to introduce clean water into the housing 11 for backwashing, and the drain pipe 112 is used to discharge clean water. The wastewater generated from backwashing is discharged through the outlet pipe 113 for purified water and the inlet pipe 114 for raw water input. A motor 12 is fixedly connected to the housing 11, and a valve core 121 is fixedly connected to the output end of the motor 12. The valve core 121 is rotatably connected inside the housing 11. A liquid flow channel 122 is provided on one outer wall of the valve core 121, and a notch 123 is provided on the other outer wall of the valve core 121. The motor 12 is used to drive the valve core 121, and the valve core 121 is used to control the opening and closing of various pipelines. The liquid flow channel 122 and the notch 123 are used for water flow. A connecting sleeve 1 is fixedly connected to the upper surface of the valve core 121. 24. The connecting sleeve 124 is connected to the liquid flow channel 122. The connecting sleeve 124 is fitted inside the sleeve 13. The connecting sleeve 124 is used to connect the valve core 121 and the sleeve 13. A fixing ring 125 is fixedly connected to the upper surface of the valve core 121, and the fixing ring 125 is fitted onto the sleeve 13. Multiple protruding teeth 126 are evenly distributed on the upper surface of the fixing ring 125. An adjusting ring 14 is provided at the top of the fixing ring 125, and the adjusting ring 14 is slidably connected to the sleeve 13. A toothed groove 142 is opened on the lower surface of the adjusting ring 14 at the position corresponding to the protruding teeth 126. The fixing ring 125 can push the adjusting ring through the protruding teeth 126. 14. The adjusting ring 14 can accommodate the protruding tooth 126 through the toothed groove 142; a guide groove 133 is provided on the sleeve 13, and a guide block 141 is fixedly connected to the adjusting ring 14 at the position corresponding to the guide groove 133, and the guide block 141 is slidably connected in the guide groove 133. The guide block 141 cooperates with the guide groove 133 to restrict and guide the adjusting ring 14; a pressure ring 15 is provided at the top of the adjusting ring 14, and the pressure ring 15 is slidably connected to the sleeve 13. The pressure ring 15 is provided at the bottom end of the stacked body 173, and the pressure ring 15 is used to transmit the pressure of the adjusting ring 14 to the stacked body 173.

[0028] Working principle: When using this invention, raw water can be supplied to one end of the bidirectional raw water pipe 4, and the other end of the bidirectional raw water pipe 4 can be closed by installing a valve. The raw water enters the notch 123 of the valve core 121 through the inlet pipe 114, and then enters the housing 11. It is filtered by the stacked plate assembly 17. The filtered clean water enters the sleeve 13 through the through groove 131 and the inclined hole 132. At this time, due to the water pressure, the baffle 162 used to close the through groove 131 overcomes the elastic force of the first spring plate 161, so that the through groove 131 is in the open state, and the clean water enters through the connecting sleeve 124. The water enters the liquid flow channel 122, then flows into the outlet pipe 113, and finally into the purified water pipe 2 for irrigation. If backwashing of a filter component 1 is required, the motor 12 of that filter component 1 is started. The motor 12 drives the valve core 121 to rotate 90 degrees, closing the inlet pipe 114 and the outlet pipe 113, and connecting the backwash pipe 111 and the drain pipe 112. At this time, some of the purified water in the purified water pipe 2 will enter the liquid flow channel 122 through the backwash pipe 111, and then enter the sleeve 13 through the connecting sleeve 124. Due to the water pressure and the action of the first spring plate 161, the baffle plate 162 seals. With the through groove 131 closed, clean water will spray out from the inclined hole 132 and rinse along the tangential direction of the stacked body 173, causing the stacked body 173 to rotate. Simultaneously, when adjusting the valve core 121, its retaining ring 125 rotates accordingly. Because the guide groove 133, in conjunction with the guide block 141, restricts the adjusting ring 14, allowing it to slide only along the sleeve 13, the protruding teeth 126 on the retaining ring 125 gradually enter the tooth groove 142 as the retaining ring 125 rotates. This prevents the adjusting ring 14 from applying pressure to the pressure ring 15. Meanwhile, on the second spring 175... Under the action of the third spring 176, the adjacent stacked plate bodies 173 separate, thereby spraying out the impurities trapped on the stacked plate bodies 173. The sewage will enter the drain pipe 112 through the notch 123 and finally be discharged through the sewage pipe 3. After the backwashing is completed, the motor 12 drives the valve core 121 to reverse 90 degrees, so that the valve core 121 is reset and re-enters the filtration state. Among them, the fixing frame 16 is used to install the first spring 161, the guide rod 172 is used to limit and guide the second spring 175 and the third spring 176, and the groove 174 is used to allow water flow and intercept impurities.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A two-way flow channel type agricultural water-saving filter for furrow irrigation, comprising a filter assembly (1), a purified water pipe (2), a sewage pipe (3), and a two-way raw water pipe (4), characterized in that: Multiple filter components (1) are connected to the bidirectional raw water pipe (4), and the filter components (1) are connected to the clean water pipe (2) and the sewage pipe (3) respectively. The filter component (1) includes a shell (11), a sleeve (13) is fixedly connected inside the shell (11), a fixing frame (16) is provided inside the sleeve (13), and the fixing frame (16) is fixedly connected inside the shell (11). Multiple first spring pieces (161) are evenly distributed on the fixing frame (16), a baffle (162) is fixedly connected on the first spring piece (161), and the baffle (162) is set on the inner wall of the sleeve (13). A through groove (131) is opened on the sleeve (13) at the position corresponding to the baffle (162), and multiple oblique holes (132) are evenly distributed on the sleeve (13).

2. The two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 1, characterized in that: The sleeve (13) is equipped with a stacking assembly (17), which includes a retaining ring (171), a guide rod (172), a stacking body (173), a groove (174), a second spring (175) and a third spring (176). Multiple stacking bodies (173) are slidably connected to the sleeve (13). Multiple second springs (175) are evenly distributed on the stacking body (173). The bottom end of the second spring (175) is provided with a third spring (176), and the third spring (176) is fixedly connected to the stacking body (173).

3. The two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 2, characterized in that: A retaining ring (171) is fitted onto the sleeve (13), and the retaining ring (171) is located at the top of the stacked body (173). Multiple guide rods (172) are fixedly connected to the lower surface of the retaining ring (171), and the stacked body (173) is slidably connected to the guide rods (172). The second spring piece (175) is located between the two guide rods (172).

4. The two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 3, characterized in that: Multiple grooves (174) are evenly distributed on both outer walls of the stacked body (173).

5. The two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 1, characterized in that: A backwash pipe (111) is fixedly connected to the housing (11), and the input end of the backwash pipe (111) is connected to the clean water pipe (2). A drain pipe (112) is fixedly connected to the housing (11), and the output end of the drain pipe (112) is connected to the sewage pipe (3). A water outlet pipe (113) is fixedly connected to the housing (11), and the output end of the water outlet pipe (113) is connected to the clean water pipe (2). A water inlet pipe (114) is fixedly connected to the housing (11), and the input end of the water inlet pipe (114) is connected to the bidirectional raw water pipe (4).

6. The two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 5, characterized in that: A motor (12) is fixedly connected to the housing (11), and a valve core (121) is fixedly connected to the output end of the motor (12). The valve core (121) is rotatably connected inside the housing (11). A liquid flow channel (122) is opened on one side of the outer wall of the valve core (121), and a notch (123) is opened on the other side of the outer wall of the valve core (121).

7. The two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 6, characterized in that: A connecting sleeve (124) is fixedly connected to the upper surface of the valve core (121), and the connecting sleeve (124) is connected to the liquid flow channel (122). The connecting sleeve (124) is sleeved inside the sleeve (13).

8. The two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 7, characterized in that: A fixing ring (125) is fixedly connected to the upper surface of the valve core (121), and the fixing ring (125) is sleeved on the sleeve (13). Multiple protruding teeth (126) are evenly distributed on the upper surface of the fixing ring (125). An adjusting ring (14) is provided at the top of the fixing ring (125), and the adjusting ring (14) is slidably connected to the sleeve (13). A tooth groove (142) is opened on the lower surface of the adjusting ring (14) at the position corresponding to the protruding teeth (126).

9. A two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 8, characterized in that: The sleeve (13) is provided with a guide groove (133), and a guide block (141) is fixedly connected in the adjusting ring (14) at the position corresponding to the guide groove (133), and the guide block (141) is slidably connected in the guide groove (133).

10. A two-way flow channel type agricultural water-saving filter for furrow irrigation according to claim 9, characterized in that: The top of the adjusting ring (14) is provided with a pressure ring (15), and the pressure ring (15) is slidably connected to the sleeve (13). The pressure ring (15) is located at the bottom of the stacked body (173).

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