Soil layer liquid fertilizer injector

Abstract

The utility model discloses a kind of soil layer liquid fertilizer injectors, including liquid medicine bucket and with the liquid outlet pipe of liquid medicine bucket connection, the liquid outlet pipe includes outer tube and inner tube, the wall surface of outer tube is circumferentially provided with multiple liquid outlet holes, the inner tube is set in the inside of outer tube and with the liquid medicine bucket intercommunication, multiple branch small tubes are radially communicated on the inner tube, the branch small tube is communicated with the liquid outlet hole, the bottom of the liquid medicine bucket is connected with drive pump by main valve, the outlet end of drive pump is communicated with the inner tube by flow valve, the flow valve is arranged between the outlet of drive pump and the inner tube. The utility model can realize continuous, stable underground liquid injection in high altitude, high evaporation environment, reduce dosing frequency, improve efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to a soil liquid fertilizer injector. Background Technology

[0002] In high-altitude areas, the surface evaporation rate is high. Traditional surface fertilization or watering methods are often unsatisfactory due to severe evaporation loss and low fertilizer efficiency. Although existing large-scale underground injection systems can directly inject liquid fertilizer into the soil, they are large in size, complex to operate, and costly, making them unsuitable for scientific research, student plots, and small-scale agriculture. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technology by providing a soil liquid fertilizer injector that can achieve continuous and stable underground injection in high-altitude and high-evaporation environments, reducing the number of times chemicals are added and improving efficiency.

[0004] The objective of this utility model is achieved through the following technical solution: A soil liquid fertilizer injector includes a liquid tank and a dispensing pipe connected to the liquid tank. The dispensing pipe includes an outer tube and an inner tube. The outer tube has multiple dispensing holes circumferentially opened on its wall surface. The inner tube is disposed inside the outer tube and communicates with the liquid tank. Multiple branch tubes are radially connected to the inner tube, and the branch tubes communicate with the dispensing holes.

[0005] In one embodiment, the bottom of the medicine tank is connected to the drive pump via a main valve, and the outlet of the drive pump is connected to the inner tube via a flow valve, wherein the flow valve is disposed between the outlet of the drive pump and the inner tube. This implementation method allows for the use of a flow valve to regulate the injection rate and flow rate. Additionally, clean water can be introduced before and after operation to prevent blockage of the branch tubes and the outlet of the outer tube.

[0006] In one embodiment, the outlet end of the drive pump is also connected in parallel with a check valve and a pressure relief valve, and the pressure relief valve is connected back to the medicine tank through a pressure relief hose.

[0007] In one embodiment, the main valve is a ball valve or a rotary valve. This embodiment allows for the control of the connection and disconnection between the medicine tank and the drive pump via the main valve.

[0008] In one embodiment, the bottom of the outer tube may be detachably connected to a soil-simulating drill bit, which has a spiral blade structure and is used to drill into the soil.

[0009] In one embodiment, a gripping bar is provided at the top of the outer tube, and the gripping bar has a T-shaped structure.

[0010] In one embodiment, a foot pedal is also provided on the side wall of the outer tube.

[0011] In one embodiment, a removable filter screen is further provided between the outer tube and the inner tube.

[0012] In one embodiment, the pore size of the removable filter is 200~500μm.

[0013] In one embodiment, the medicine container is also equipped with a carrying strap.

[0014] The beneficial effects of this utility model are as follows: The integrated liquid supply system, consisting of a liquid tank, a drive pump, and a main valve, enables operators to achieve continuous and stable underground injection in high-altitude, high-evaporation environments, reducing the frequency of dosing and improving efficiency. The filter structure between the outer and inner pipes, along with the backwashing design controlled by the flow valve, effectively prevents silt and fine soil from clogging the liquid path, ensuring long-term reliable operation. The foldable foot pedals and grip bar facilitate drilling into the soil and can be folded up for easy transport, occupying minimal space and suitable for single-person carrying. A check valve, pressure relief valve, and flow valve form a three-level safety control system to prevent liquid backflow and pipeline overpressure, ensuring safe and stable operation. This compact design can be applied to farmland, forests, grasslands, and scientific research environments, significantly improving liquid fertilizer utilization and application uniformity in environments with high ground evaporation and insufficient water supply. Attached Figure Description

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 A cross-sectional structural diagram of this utility model is shown; Figure 3 This diagram shows the structural schematic of the connection between the inner tube and the branch tube of this utility model; Figure 4 This diagram illustrates the liquid flow direction during operation of this invention. Figure 5 This diagram illustrates the liquid flow direction between the inner tube and the branch tubes during operation. In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0016] Figure label: 1-Outer tube, 2-Inner tube, 3-Medicine tank, 4-Drive pump, 5-Branch tube, 6-Filter screen, 7-Soil drill bit, 8-Grip bar, 9-Foot pedal, 10-Main valve, 11-Check valve, 12-Pressure relief valve, 13-Pressure relief hose, 14-Flow valve, 15-Discharge hole, 16-Shoulder strap. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] This utility model provides a soil liquid fertilizer injector, such as Figures 1 to 5 As shown, it includes: outer pipe 1, inner pipe 2, medicine tank 3, drive pump 4, branch pipe 5, filter screen 6, imitation soil drill bit 7, grip bar 8, foot pedal 9, main valve 10, check valve 11, pressure relief valve 12, pressure relief hose 13, and flow valve 14. The outer tube 1 has multiple liquid outlet holes 15 evenly distributed on its side wall for liquid discharge. The inner tube 2 is located inside the outer tube 1, and a filter screen 6 is provided between them. The filter screen 6 has a detachable structure and its pore size is preferably 200-500μm to prevent mud and fine soil particles from entering the inner tube system. The branch tube 5 extends radially from the inner tube 2 and is connected to the liquid outlet holes 15 of the outer tube 1, so that the liquid is evenly injected into the soil layer from multiple directions, thereby increasing the fertilization coverage area. It should be noted that this embodiment forms an integrated liquid supply system by using the liquid tank 3, the drive pump 4, and the main valve 10. This enables operators to achieve continuous and stable underground liquid injection in high-altitude and high-evaporation environments, reducing the number of times the liquid is added and improving efficiency. The filter screen 6 structure between the outer pipe 1 and the inner pipe 2, as well as the backwash cleaning design controlled by the flow valve 14, effectively prevents mud and fine soil from clogging the liquid path, ensuring long-term reliable operation of the equipment. The foldable foot pedal 9 and the grip bar 8 are used together, which facilitates drilling into the soil and can be folded up when carried, occupying little space and suitable for single-person carrying. The check valve 11, the pressure relief valve 12, and the flow valve 14 form a three-level safety control system, which can prevent liquid backflow and pipeline overpressure, ensuring safe and stable use. This utility model has a compact structure and can be applied to farmland, forest land, grassland, and scientific research experimental scenarios. In environments with strong ground evaporation and insufficient water supply, it significantly improves the utilization rate of liquid fertilizer and the uniformity of fertilization. Furthermore, the medicine tank 3 is preferably a semi-cylindrical structure with an adjustable shoulder strap 16 on its back for easy carrying by the operator. The bottom of the medicine tank 3 is connected to the inlet of the drive pump 4 through the main valve 10. The main valve 10 is a ball valve or rotary valve structure and is used to control the on / off connection between the medicine tank 3 and the drive pump 4. In one embodiment, a check valve 11 and a pressure relief valve 12 are connected in parallel at the outlet end of the drive pump 4. The pressure relief valve 12 is connected back to the top of the medicine tank 3 through a pressure relief hose 13 to achieve automatic pressure relief and safe backflow. Furthermore, the outlet of the drive pump 4 is also connected to the inner tube 2 through the flow valve 14. The flow valve 14 is used to adjust the injection rate and flow rate. At the same time, clean water can be introduced before and after operation to flush the branch tube 5 and the outlet hole 15 to prevent blockage. In one embodiment, the bottom end of the outer tube 1 is connected to a soil drill bit 7. The drill bit has a spiral blade structure and can drill into the soil under the action of the foot pedal 9 and the grip bar 8. The foot pedal 9 is connected to the upper part of the outer tube 1 through a pin. It is foldable and has a multi-position locking structure so as to adjust the use state according to different depths and forces. The grip bar 8 is located at the center of the upper part of the outer tube and is a "T" shaped or horizontal bar structure, used for manually applying force to screw in or pull out the instrument. Furthermore, to adapt to different working environments, the drill bit 7 and the outer tube 1 can be quickly disassembled using a threaded or plug-in structure, so as to replace drill bits of different specifications or extend the drilling depth; In one embodiment, the drive pump 4 can be a foot-operated pump or a manual reciprocating piston pump, and its output pressure range is preferably 0.3-0.8 MPa, which can meet the requirements for stable liquid injection into the soil layer. In one embodiment, the outer tube diameter is preferably 25-35mm, the inner tube diameter is 15-20mm, and the liquid container capacity is 3-8L, which can meet the portability requirements of single-person operation. In one embodiment, during use, the operator carries the liquid tank 3 on their back, opens the main valve 10, starts the pump 4 to generate pressure, and allows the liquid fertilizer to enter the inner pipe 2 through the check valve 11, and is injected into the underground soil layer through the branch pipe 5 and the outlet hole 15. After the operation is completed, the main valve 10 is closed, the flow valve 14 is opened, and clean water is injected into the system to flush the branch pipe and the outlet hole of the outer pipe to prevent blockage. The pressure relief valve 12 automatically opens when the system is over-pressurized to ensure safety. In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A soil-based liquid fertilizer injector, characterized in that, The device includes a medicine container and a dispensing pipe connected to the medicine container. The dispensing pipe includes an outer pipe and an inner pipe. The outer pipe has multiple dispensing holes circumferentially opened on its wall surface. The inner pipe is disposed inside the outer pipe and communicates with the medicine container. Multiple branch pipes are radially connected to the inner pipe, and the branch pipes communicate with the dispensing holes.

2. The soil liquid fertilizer injector according to claim 1, characterized in that, The bottom of the medicine tank is connected to the drive pump via a main valve, and the outlet of the drive pump is connected to the inner tube via a flow valve, which is located between the outlet of the drive pump and the inner tube.

3. The soil liquid fertilizer injector according to claim 2, characterized in that, The outlet end of the drive pump is also connected in parallel with a check valve and a pressure relief valve, and the pressure relief valve is connected back to the medicine tank through a pressure relief hose.

4. A soil-layer liquid fertilizer injector according to claim 2, characterized in that, The main valve is a ball valve or a rotary valve.

5. A soil-layer liquid fertilizer injector according to claim 1, characterized in that, The bottom of the outer tube can also be detachably connected to a soil-simulating drill bit, which has a spiral blade structure and is used to drill into the soil.

6. A soil-layer liquid fertilizer injector according to claim 1, characterized in that, The top of the outer tube is provided with a gripping rod, which has a T-shaped structure.

7. A soil-layer liquid fertilizer injector according to claim 1, characterized in that, Foot pedals are also provided on the side wall of the outer tube.

8. A soil-layer liquid fertilizer injector according to claim 1, characterized in that, A removable filter screen is also provided between the outer tube and the inner tube.

9. A soil-layer liquid fertilizer injector according to claim 8, characterized in that, The detachable filter has a pore size of 200~500μm.

10. A soil-layer liquid fertilizer injector according to claim 1, characterized in that, The medicine container is also equipped with a carrying strap.

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