Filtering device for agricultural irrigation

Abstract

The utility model belongs to the technical field of agricultural irrigation equipment, and particularly relates to a filtering device for agricultural irrigation, which comprises a fixed barrel and a water pump, a filtering plate capable of sliding along a sliding rod is arranged in the fixed barrel through a mounting frame, a first spring is connected between the filtering plate and the mounting frame, and a cleaning column with a cleaning cap is arranged on the side wall of the mounting frame. A drain outlet is formed in the side wall of the fixed cylinder, a cover plate is arranged in the drain outlet, and a conical rod is fixed at the bottom end of the cover plate and matched with the inclined surface of the side edge of the filter plate. After impurities block filtering holes, water pressure difference pushes a filtering plate to slide towards a mounting frame along a sliding rod, a cleaning cap is inserted into the filtering holes to clean blockage, and meanwhile, the inclined surface of the filtering plate extrudes a conical rod, so that a cover plate overcomes the elastic force of a second spring to slide upwards to open a drain outlet and discharge the impurities; and then the first spring drives the filter plate to reset, and the second spring drives the cover plate to close the sewage draining exit, so that automatic cleaning and sewage draining circulation are realized.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural irrigation equipment technology, specifically referring to a filtration device for agricultural irrigation. Background Technology

[0002] Irrigation is a crucial step in ensuring crop growth. Currently, the water sources commonly used for agricultural irrigation often contain impurities. If these impurities are not filtered before irrigation, they can easily clog irrigation pipes. Existing agricultural irrigation filtration devices mostly use filter screens, filter cartridges, and other filter elements to intercept impurities. However, the following problems exist in practical use:

[0003] (1) The filter element is prone to blockage due to the accumulation of debris, which leads to a significant decrease in filtration efficiency. Stopping the machine to disassemble the filter element for cleaning or replacement will cause the irrigation process to be interrupted. Especially for large-area farmland irrigation scenarios, frequent machine shutdowns for cleaning will seriously affect irrigation efficiency and make it difficult to meet the needs of continuous irrigation.

[0004] (2) Although some filter devices are equipped with a cleaning structure, they cannot completely remove the debris from the device in time. After the debris accumulates inside the device, it will further narrow the water flow channel, resulting in a decrease in irrigation flow. Utility Model Content

[0005] This invention overcomes the shortcomings of existing technologies and provides a filtration device for agricultural irrigation. It utilizes the characteristic that the filter plate slides along the slide rod due to the water pressure difference generated by the blockage of debris. With the help of a cleaning cap with the same diameter as the filter hole on the mounting frame, the cleaning cap can accurately embed into the filter hole and push out the blockage debris when the filter plate slides, avoiding irrigation interruption caused by disassembling and cleaning the filter element. While the filter plate is sliding and cleaning, the pressing action between the side slope and the bottom slope of the cover plate pushes the cover plate to overcome the elastic force of the second spring and open the drain port, so that the cleaned debris can be discharged with the water flow in an instant, preventing the accumulation of debris in the cylinder.

[0006] The technical solution adopted by this utility model is as follows: This solution provides a filtration device for agricultural irrigation, including a fixed cylinder and a water pump. The water pump is fixedly installed at one end of the fixed cylinder. It creates a negative pressure in the fixed cylinder through its own suction, driving the water flow from the inlet end to the outlet end. A mounting frame is fixedly installed on the inner wall of the fixed cylinder. A sliding rod is coaxially fixedly installed on the side wall of the mounting frame. A filter plate is slidably installed on the circumferential wall of the sliding rod. Impurities in the water are intercepted through the filter holes to achieve filtration of irrigation water. Cleaning columns are arrayed on the side wall of the mounting frame to clean the filter holes of the filter plate that are blocked.

[0007] Furthermore, a cleaning cap is fixedly installed at one end of the cleaning column near the filter plate. The cleaning cap has the same diameter as the filter hole of the filter plate, which pushes out the debris blocking the filter hole of the filter plate from the other side.

[0008] Furthermore, a first spring is fixedly installed on the side wall of the filter plate, and the other end of the first spring is fixedly connected to the mounting bracket. When the water pressure difference decreases, it releases potential energy and drives the filter plate to reset.

[0009] Furthermore, a drain port is provided on the side wall of the fixed cylinder to discharge the blockage scraped off by the cleaning cap and the debris accumulated between the filter plate and the mounting frame. A cover plate is slidably provided inside the drain port to completely cover the drain port when not discharging sewage.

[0010] Furthermore, a cone rod is fixedly provided at the bottom of the cover plate. The cone rod is located on the moving path of the filter plate and transmits extrusion force to open the drain port.

[0011] Furthermore, a second spring is fixedly installed on the top wall of the cover plate, and the other end of the second spring is fixedly connected to the inner wall of the fixed cylinder, which drives the cover plate to close the sewage outlet.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows:

[0013] (1) When debris in the water clogs the filter holes, the area of ​​the filter plate blocking the water flow increases, the water pressure difference on both sides rises, the water flow thrust overcomes the tension of the first spring, and pushes the filter plate to slide along the slide rod towards the mounting frame. The filter holes gradually align with the cleaning column as the filter plate moves, and the cleaning cap is inserted into the filter hole to directly push out or scrape out the mud, sand, water plants and other debris that are blocked in the hole, thus avoiding irrigation interruption caused by cleaning.

[0014] (2) As the filter plate slides along the slide bar toward the mounting bracket and the cleaning cap cleans the filter holes, the inclined surface of the side edge of the filter plate contacts the inclined surface of the bottom end of the cover plate and squeezes the cover plate. The cover plate overcomes the elastic force of the second spring and slides up along the inner wall of the drain port. The drain port opens. At this time, the debris scraped off by the cleaning cap from the filter holes, as well as the debris accumulated between the filter plate and the mounting bracket, will be flushed out of the drain port at high speed with the water flow in the fixed cylinder, avoiding the accumulation of debris in the cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a filtration device for agricultural irrigation proposed in this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a filtration device for agricultural irrigation proposed in this utility model. Figure 1 ;

[0017] Figure 3 This is a schematic cross-sectional view of a filtration device for agricultural irrigation proposed in this utility model. Figure 2 ;

[0018] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0019] Among them, 1. fixed cylinder, 2. water pump, 3. mounting bracket, 4. slide rod, 5. filter plate, 6. first spring, 7. cleaning column, 8. cleaning cap, 9. drain outlet, 10. cover plate, 11. cone rod, 12. second spring.

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-4 This embodiment provides a filtration device for agricultural irrigation, including a fixed cylinder 1 and a water pump 2. The water pump 2 is fixedly installed at one end of the fixed cylinder 1. A mounting frame 3 is fixedly installed on the inner wall of the fixed cylinder 1. A sliding rod 4 is coaxially fixedly installed on the side wall of the mounting frame 3. A filter plate 5 is slidably installed on the circumferential wall of the sliding rod 4. A first spring 6 is fixedly installed on the side wall of the filter plate 5. The other end of the first spring 6 is fixedly connected to the mounting frame 3. Cleaning columns 7 are arranged in an array on the side wall of the mounting frame 3. A cleaning cap 8 is fixedly installed on the end of the cleaning column 7 near the filter plate 5. The diameter of the cleaning cap 8 is the same as that of the filter hole of the filter plate 5. A sewage outlet 9 is opened on the side wall of the fixed cylinder 1. A cover plate 10 is slidably installed in the sewage outlet 9. A cone rod 11 is fixedly installed at the bottom end of the cover plate 10. The side edge of the filter plate 5 near the mounting frame 3 is inclined. The cone rod 11 is located on the movement path of the filter plate 5. A second spring 12 is fixedly installed on the top wall of the cover plate 10. The other end of the second spring 12 is fixedly connected to the inner wall of the fixed cylinder 1.

[0023] In this embodiment, before use, the fixed cylinder 1 is placed in the water source to be pumped, ensuring that the water inlet end of the fixed cylinder 1 can fully contact the water source. Then, the water pump 2 is started to guide the water in the fixed cylinder 1 from the water outlet end to the water pump 2 output end, and then the water pump 2 output end is delivered to the agricultural irrigation system. When the water flows through the filter plate 5, the impurities in the water are intercepted by the filter holes of the filter plate 5 and remain on the side of the filter plate 5 facing the water inlet end. The filtered clean water then flows through the filter holes to the water pump 2, thus filtering the irrigation water. As the filtration process continues, the impurities gradually accumulate on the side of the filter plate 5 facing the water inlet end. Some of the impurities will block the filter holes of the filter plate 5, resulting in an increase in the blocking area of ​​the filter plate 5 on the water flow. The water pressure difference on both sides of the filter plate 5 gradually increases. When the water flow thrust generated by the water pressure difference is greater than the tension of the first spring 6, the filter plate 5 begins to slide along the slide rod 4 towards the mounting bracket 3 under the action of the water flow thrust.

[0024] As the filter plate 5 slides toward the mounting bracket 3, the blocked filter holes on the filter plate 5 gradually align with the cleaning column 7 on the mounting bracket 3. When the filter hole contacts the cleaning cap 8 at the end of the cleaning column 7, the cleaning cap 8 is pushed into the filter hole by the filter plate 5, pushing out the debris blocking the filter hole from the other side of the filter hole, thus cleaning the filter hole. At the same time, the inclined surface of the side edge of the filter plate 5 contacts and gradually squeezes the inclined surface of the cone rod 11. Under the action of the squeezing force, the cover plate 10 overcomes the elastic force of the second spring 12 and slides upward along the inner wall of the drain port 9, so that the drain port 9 gradually opens. The water flow carries the debris scraped off from the filter hole by the cleaning cap 8, as well as the debris accumulated between the filter plate 5 and the mounting bracket 3, and rushes out of the fixed cylinder 1 at high speed from the drain port 9, thus realizing the automatic discharge of debris.

[0025] When the filter plate 5 slides to the position closest to the mounting bracket 3, the filter holes on the filter plate 5 completely slide past the cleaning cap 8. At this time, a gap is formed between the cleaning column 7 and the filter holes, the water pressure difference on both sides of the filter plate 5 decreases, and the thrust of the water flow on the filter plate 5 decreases accordingly. The elastic potential energy stored in the first spring 6 is released, causing the filter plate 5 to return to its initial position along the slide rod 4. During the process of the filter plate 5 returning to its initial position, the inclined surface of the side edge of the filter plate 5 gradually disengages from the inclined surface of the cone rod 11, the squeezing force on the cover plate 10 disappears, the elastic potential energy stored in the second spring 12 is released, causing the cover plate 10 to slide down along the inner wall of the drain outlet 9 until the cover plate 10 completely covers the drain outlet 9 again, thus closing the drain outlet 9. At this point, the filtration device completes one automatic cleaning of the filter holes and draining process. The filter plate 5 returns to its initial position and continues to filter the water flowing into the fixed cylinder 1. This cycle repeats to ensure the continuous flow of irrigation water.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An agricultural irrigation filtering device comprising a fixed cylinder (1) and a water pump (2) fixedly installed at one end of the fixed cylinder (1), characterized in that, The inner wall of the fixed cylinder (1) is fixedly provided with a mounting frame (3), the side wall of the mounting frame (3) is coaxially and fixedly provided with a sliding rod (4), the circumferential wall of the sliding rod (4) is slidably provided with a filter plate (5), and the side wall of the mounting frame (3) is arrayed with cleaning columns (7).

2. A filter device for agricultural irrigation according to claim 1, characterized in that: The cleaning cap (8) is fixedly arranged at one end of the filter plate (5) and has the same diameter as the filter hole of the filter plate (5).

3. The filter device for agricultural irrigation according to claim 1, characterized in that: The side wall of the filter plate (5) is fixedly provided with a first spring (6), and the other end of the first spring (6) is fixedly connected with the mounting frame (3).

4. The filter apparatus for agricultural irrigation of claim 1, wherein: The side wall of the fixed cylinder (1) is provided with a blowdown opening (9), and the blowdown opening (9) is slidably provided with a cover plate (10).

5. A filter device for agricultural irrigation according to claim 4, characterised in that: The bottom end of the cover plate (10) is fixedly provided with a taper rod (11), and the taper rod (11) is located on the movable path of the filter plate (5).

6. A filter device for agricultural irrigation according to claim 4, characterized in that: The top wall of the cover plate (10) is fixedly provided with a second spring (12), and the other end of the second spring (12) is fixedly connected with the inner wall of the fixed cylinder (1).

Images