A device for drip irrigation and fertilization for corn protection against insects

Abstract

The utility model discloses a kind of for corn insect prevention drip irrigation fertilization device, including water source, first head hub, water pipe network and sprinkler, water source and first head hub between being equipped with water source filter.The utility model is compared with prior art's advantage is in: when discovering that water flow accumulates speed slows down, only need to open the knife gate valve in the front of shell top surface L shape unloading port, then rotate by waterproof motor drive sandstone transport water worm and scrape and wash cutter holder, sandstone accumulated in shell interior, sandstone in interior will be constantly discharged to L shape unloading port under the double action of gravity and sandstone transport water worm, and under the water flow impact of water inlet of water source filter, it can accelerate the speed of cleaning, until sandstone is completely cleaned out, knife gate valve can be closed, waterproof motor is stopped.

Description

Technical Field

[0001] This utility model relates to the agricultural field, specifically to a drip irrigation and fertilization device for pest control in corn. Background Technology

[0002] In the current agricultural sector, in order to save water while maximizing irrigation efficiency, people have gradually developed from traditional irrigation methods to the current drip irrigation method. In order to facilitate the even application of fertilizers and pesticides in the fields, special insect-proof drip irrigation and fertilization devices are usually used for unified mixed irrigation. Common plants such as corn, peppers, and garlic can all be used.

[0003] The existing drip irrigation and fertilization system for corn pest control mainly consists of four parts: water source, headworks, water distribution network, and irrigation devices. The key devices related to pest control and fertilization are concentrated in the headworks. The overall drip irrigation structure includes a water supply system, fertilization / pesticide application devices, control and monitoring system, water distribution network, and drip irrigation tape. To prevent impurities such as silt in the water source (river or well water) from clogging the drip irrigation inlet, a water source filter consisting of a shell and an impurity filter screen located inside the shell is usually installed at the output end of the water pump.

[0004] While existing water filters can remove impurities from the water, these impurities accumulate in the casing and require regular manual cleaning. This cleaning process necessitates shutting down the machine, which not only significantly impacts efficiency but also increases the risk of fertilizer or pesticide sedimentation. Utility Model Content

[0005] The technical problem this invention aims to solve is that the water source filter used in existing drip irrigation and fertilization devices for corn pest control is difficult to quickly clean the sand and gravel clogging the inside without shutting down the machine.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a drip irrigation and fertilization device for corn pest control, including a water source, a head hub, a water distribution network, and an irrigation device. A water source filter is provided between the water source and the head hub. The water source filter includes a housing and an impurity filter screen located inside the housing. A sand and gravel discharge assembly is provided below the impurity filter screen. The sand and gravel discharge assembly includes a scraper frame located below the impurity filter screen, a sand and gravel transport water worm gear connected to the main shaft on the bottom surface of the scraper frame, and a waterproof motor driving the bottom surface of the sand and gravel transport water worm gear. The bottom surface of the housing is provided with an L-shaped discharge port corresponding to the sand and gravel transport water worm gear.

[0007] As an improvement, the main shaft of the scraper holder is connected to the sand and gravel transport water worm gear through a spline shaft structure, and the side of the spline shaft is provided with reinforcing screws that pass through the spline shaft and the bushing.

[0008] As an improvement, the vertical end of the L-shaped discharge port is provided with a limiting frame that restricts the position of the top surface of the main shaft of the sand and gravel transport water worm gear, and the bottom surface of the main shaft of the sand and gravel transport water worm gear passes through the bottom surface of the vertical end of the L-shaped discharge port and is connected to the output shaft of the waterproof motor.

[0009] As an improvement, the L-shaped discharge port is equipped with a knife gate valve connected by a flange structure on its flat discharge port.

[0010] As an improvement, the scraper holder includes a main shaft, two sets of opposing L-shaped scrapers located on the side of the main shaft, and several auxiliary support rods connecting the main shaft and the vertical ends of the L-shaped scrapers.

[0011] As an improvement, the auxiliary support rod is close to but does not contact the bottom surface of the impurity filter screen.

[0012] As an improvement, the outer walls of the L-shaped scraper and the auxiliary support rod are coated with a waterproof and wear-resistant coating.

[0013] The advantages of this invention compared to existing technologies are as follows: When the water flow slows down, simply open the gate valve in front of the L-shaped discharge port on the top surface of the casing. Then, drive the sand and gravel transport worm gear and the scraper frame to rotate via the waterproof motor. The sand and gravel accumulated inside the casing will be loosened by the scraper frame. Under the combined action of gravity and the sand and gravel transport worm gear, the sand and gravel inside will be continuously discharged into the L-shaped discharge port. Furthermore, the water flow impact at the water source filter inlet will accelerate the cleaning speed until the sand and gravel are completely removed. Then, the gate valve can be closed and the waterproof motor can be stopped. Attached Figure Description

[0014] Figure 1 This is a general structural diagram of a drip irrigation and fertilization device for pest control in corn, according to this utility model.

[0015] Figure 2 This is a front view of the overall structure of a drip irrigation and fertilization device for pest control in corn, according to this utility model.

[0016] Figure 3 This utility model relates to a drip irrigation and fertilization device for pest control in corn. Figure 2 The sectional view corresponding to the section line at point AA.

[0017] Figure 4 This is an exploded view of the sand and gravel discharge component of a drip irrigation and fertilization device for pest control in corn, according to this utility model.

[0018] Figure 5 This is a structural diagram of the scraper holder of a drip irrigation and fertilization device for pest control in corn, according to this utility model.

[0019] Figure 6This is a structural diagram of a sand and gravel transport worm gear for a drip irrigation and fertilization device used for pest control in corn, according to this utility model.

[0020] As shown in the figure: 1. Water source filter; 11. Housing; 111. L-shaped discharge port; 12. Impurity filter screen; 2. Sand and gravel discharge assembly; 21. Scraper holder; 211. Main shaft; 212. L-shaped scraper; 213. Auxiliary support rod; 22. Sand and gravel transport worm gear; 221. Limiting frame; 23. Waterproof motor; 3. Reinforcing screws; 4. Knife gate valve. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] As per the instruction manual Figure 1 , 2 As shown in Figure 3, in order to save water while ensuring irrigation efficiency, farmland irrigation is gradually shifting to drip irrigation, such as for crops like corn, garlic, and soybeans. In order to ensure that pesticides and fertilizers are added evenly to the drip irrigation solution, fertilizer application devices and pesticide mixing devices are usually installed between the water pump and the drip line. To prevent silt from the river from clogging the output pipes of the drip line, fertilizer application device, and pesticide mixing device, a water source filter 1 consisting of a housing 11 and an impurity filter screen 12 located inside the housing 11 is usually installed behind the water pump. At present, the water source filter 1 is mainly a disc filter or a screen filter. The impurity filter screen 12 inside the housing 11 isolates impurities such as silt in the lower half of the housing 11, and then the machine is stopped and cleaned periodically according to the changes in water flow.

[0023] As per the instruction manual Figure 1 , 3As shown in Figures 4, 5, and 6, traditional water source filters 1 require the machine to be stopped before the casing can be opened for internal cleaning. This is typically done after drip irrigation has finished. While this method is sufficient for most terrains, in areas with abundant silt and sand, large-scale drip irrigation can lead to excessive silt clogging the inlet of the water source filter 1. Furthermore, if the machine is stopped for cleaning and the cleaning time is too long, the pesticide and fertilizer mixture in the mixing tank is prone to sedimentation, potentially causing blockage at the outlet when discharging fertilizer and pesticides. To address this issue, this device includes a sand and gravel discharge assembly 2 below the impurity filter screen 12. The sand and gravel discharge assembly 2 includes components located below the impurity filter screen 12. The lower scraper holder 21, the sand and gravel transport worm gear 22 connected to the main shaft on the bottom surface of the scraper holder 21, and the waterproof motor 23 driving the bottom surface of the sand and gravel transport worm gear 22 are included. The scraper holder 21 includes a main shaft 211, two sets of opposing L-shaped scrapers 212 located on the side of the main shaft 211, and several auxiliary support rods 213 connecting the vertical ends of the main shaft 211 and the L-shaped scrapers 212. In order to facilitate the discharge of mud and sand, the bottom surface of the housing 11 is provided with an L-shaped discharge port 111 corresponding to the sand and gravel transport worm gear 22. The outlet end of the L-shaped discharge port 111 is generally sealed by a gate valve 4 connected by a flange structure. The bottom surface of the housing 11 is tapered to ensure that the mud and sand can enter the vertical end of the L-shaped discharge port 111 under the action of gravity.

[0024] To facilitate the disassembly of the sand and gravel transport worm gear 22 and the scraper holder 21, the two are designed as detachable structures. The main shaft of the scraper holder 21 is connected to the sand and gravel transport worm gear 22 through a spline shaft structure. In order to ensure the shock resistance after connection, the side of the spline shaft is provided with a reinforcing screw 3 that passes through the spline shaft and the bushing.

[0025] To ensure the stability of the sand and gravel transport worm gear 22 during rotation, a limiting frame 221 is provided at the vertical end of the L-shaped discharge port 111 to restrict the position of the top surface of the main shaft of the sand and gravel transport worm gear 22. The bottom surface of the main shaft of the sand and gravel transport worm gear 22 passes through the bottom surface of the vertical end of the L-shaped discharge port 111 and is connected to the output shaft of the waterproof motor 23. In order to reduce the friction during rotation, waterproof sealed bearings are installed at both ends of the sand and gravel transport worm gear 22.

[0026] To prevent accumulated silt from affecting the filtration effect of the impurity filter screen 12, the auxiliary support rod 213 is close to but does not contact the bottom surface of the impurity filter screen 12. While removing the silt layer, it avoids scratching the impurity filter screen 12. In order to reduce the corrosiveness of water to the scraper holder 21, the outer walls of the L-shaped scraper 212 and the auxiliary support rod 213 are coated with a waterproof and wear-resistant coating, or wear-resistant pads are fitted on the outer walls of the L-shaped scraper 212 and the auxiliary support rod 213.

[0027] In practical implementation of this invention, when the water flow rate decreases or becomes unstable, it may be due to blockage at the inlet of the water source filter 1. In this case, the knife gate valve 4 needs to be opened, and the waterproof motor 23 needs to be turned on. This drives the scraper blade holder 21 to loosen the accumulated mud and sand, while simultaneously sliding down the slope of the bottom surface of the housing 11 towards the vertical end of the L-shaped discharge port 111. The mud and sand are then transported to the outlet end of the L-shaped discharge port 111 by the sand and gravel transport worm gear 22. The sand and gravel transport worm gear 22 is used to prevent blockage at the vertical end of the L-shaped discharge port 111 and also to promote the discharge of mud and sand water. The drainage volume of the L-shaped discharge port 111 must not exceed the water inlet, thereby ensuring the minimum output of water to the subsequent processes.

[0028] 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. A drip irrigation and fertilization device for pest control in corn, comprising a water source, a headworks, a water distribution network, and an irrigation device, wherein a water source filter (1) is provided between the water source and the headworks, the water source filter (1) comprising a housing (11) and an impurity filter screen (12) located inside the housing (11), characterized in that: Below the impurity filter screen (12) is a sand and gravel discharge assembly (2). The sand and gravel discharge assembly (2) includes a scraper frame (21) located below the impurity filter screen (12), a sand and gravel transport water worm gear (22) connected to the main shaft on the bottom surface of the scraper frame (21), and a waterproof motor (23) driving the bottom surface of the sand and gravel transport water worm gear (22). The bottom surface of the housing (11) is provided with an L-shaped discharge port (111) corresponding to the sand and gravel transport water worm gear (22).

2. The drip irrigation and fertilization device for pest control in corn according to claim 1, characterized in that: The main shaft of the scraper holder (21) is connected to the sand and gravel transport water worm gear (22) through a spline shaft structure, and the side of the spline shaft is provided with a reinforcing screw (3) that passes through the spline shaft and the bushing.

3. The drip irrigation and fertilization device for pest control in corn according to claim 1, characterized in that: The vertical end of the L-shaped discharge port (111) is provided with a limiting frame (221) that restricts the position of the top surface of the main shaft of the sand and gravel transport worm gear (22), and the bottom surface of the main shaft of the sand and gravel transport worm gear (22) passes through the bottom surface of the vertical end of the L-shaped discharge port (111) and is connected to the output shaft of the waterproof motor (23).

4. A drip irrigation and fertilization device for pest control in corn according to claim 1, characterized in that: The L-shaped discharge port (111) is equipped with a knife gate valve (4) connected by a flange structure on its flat discharge port.

5. A drip irrigation and fertilization device for pest control in corn according to claim 1, characterized in that: The scraper holder (21) includes a main shaft (211), two sets of opposing L-shaped scrapers (212) located on the side of the main shaft (211), and several auxiliary support rods (213) connecting the main shaft (211) and the vertical ends of the L-shaped scrapers (212).

6. A drip irrigation and fertilization device for pest control in corn according to claim 5, characterized in that: The auxiliary support rod (213) is close to but does not contact the bottom surface of the impurity filter screen (12).

7. A drip irrigation and fertilization device for pest control in corn according to claim 5, characterized in that: The outer walls of the L-shaped scraper (212) and the auxiliary support rod (213) are coated with a waterproof and wear-resistant coating.

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