Irrigation and fertilization device for agricultural planting

Abstract

The invention relates to the technical field of agricultural planting, and discloses an agricultural planting irrigation and fertilization device which comprises a traveling vehicle and further comprises a fixing cylinder fixed to the head position of the traveling vehicle through a fixing frame. The pipe inserting part is arranged below the fixing cylinder and can be vertically adjusted, the pipe inserting part comprises a top plate part and an inserting part, the outer ring positions of the top plate part and the inserting part are jointly and fixedly connected with a plurality of elastic piece strips, a spring is further installed between the top plate part and the inserting part, and lining pipes are fixed to the positions, close to the inner ring positions, of the top plate part and the inserting part; and the two lining pipes are mutually inserted in a sliding manner. According to the invention, cooperative work of precise fertilizer injection and formation of the water retention layer is realized, the utilization rate of the fertilizer is greatly improved, the problems of nutrient loss and environmental pollution caused by rapid infiltration of the liquid fertilizer are reduced, meanwhile, good moisture and nutrient conditions are created for crop roots, and crop growth is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and specifically relates to an agricultural planting irrigation and fertilization device. Background Art

[0002] At present, agricultural fertilization is mainly divided into methods such as drip irrigation, micro-sprinkler irrigation, surface irrigation, and foliar fertilization. Specifically, the fertilization method is selected according to the actual situation of the region where it is located, mainly to improve the utilization rate of fertilizers.

[0003] For example, in the Chinese authorized invention patent with the publication number CN119278742B, a fertilization device for tomato planting and its use method are disclosed. This fertilization device realizes precise control of the single fertilization amount through a measuring cylinder to ensure the uniformity of each fertilization amount. At the same time, the pressing component drives the insertion tube to move downward in the sleeve tube, so that the liquid fertilizer can be directly applied to the roots of tomato seedlings, thereby achieving the purpose of precise fertilization. Moreover, this fertilization method of inserting the feeding tube into the soil can directly transport the fertilizer to the roots of the crops, not only improving the fertilizer utilization rate, but also reducing nutrient loss and environmental pollution.

[0004] However, when the soil texture conditions are different, such as sandy soil, due to the relatively weak fertilizer retention ability of sandy soil itself, if the above-mentioned method of directly inserting the insertion tube into the soil for fertilization is adopted, the liquid fertilizer is prone to quickly penetrate downward and diffuse laterally after being injected, exceeding the main absorption range of the crop roots, resulting in the inability of the fertilizer to effectively accumulate around the crop roots, thereby reducing the fertilizer utilization rate and causing nutrient waste and environmental pollution. Summary of the Invention

[0005] The purpose of the present invention is to provide an agricultural planting irrigation and fertilization device to solve at least one of the technical problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An agricultural planting irrigation and fertilization device, including a traveling vehicle, and further including:

[0007] A fixed cylinder fixed to the head position of the traveling vehicle through a fixing frame;

[0008] An insertion tube part arranged below the fixed cylinder and capable of vertical adjustment. The insertion tube part includes a top plate part and an insertion part. A plurality of elastic strip are fixedly connected to the outer ring positions of the top plate part and the insertion part, and a spring is also installed between the top plate part and the insertion part. Inner lining tubes are fixed to the inner ring positions of the top plate part and the insertion part respectively, and the two inner lining tubes are slidably inserted into each other;

[0009] A lifting part arranged in the fixed cylinder, and the lifting part is used to pull the insertion part to adjust up and down, and make the plurality of elastic strip switch back and forth between a common cylindrical shape and a drum shape;

[0010] An extrusion part is arranged in the sandwich layer between the spring strips and the inner liner pipe. When the spring strips are switched to a drum shape, the extrusion part squeezes out the absorption liquid from the gaps between the spring strips, and the absorption liquid can mix the gravel and soil and form a gelatinous water-retaining layer;

[0011] A fertilization channel is arranged at the center of the insertion tube portion, and the fertilization channel is communicated with a second water tank installed on the top of the traveling vehicle.

[0012] Optionally, a lifting rod that can be vertically moved and adjusted is installed through the top of the fixed cylinder, a lifting plate is fixed to the bottom end of the lifting rod, the bottom of the lifting plate is fixedly connected to the top plate by at least two first connecting rods, and cranks driven by a motor are rotatably installed on both side walls of the fixed cylinder, and a swing rod is rotatably installed at the ends of the two cranks, and the swing rod is inserted between the two first connecting rods and is designed to be inclined.

[0013] Optionally, the lifting part includes a first slide plate and a second slide plate slidably mounted on the outer wall of the first connecting rod, and the crank is located therebetween, the first slide plate and the second slide plate are fixedly connected by a second connecting rod, a vertical tube is fixed to the bottom of the second slide plate, a through groove is provided at the top of the top plate portion, at least two locking rods are rotatably mounted in the through groove, a torsion spring is provided between the locking rod and the through groove, and the locking rods are evenly distributed in a ring shape about the axis of the top plate portion, an abutment tube 25 is fixed to the center of the insertion part, and the locking rod is in frictional contact with the outer wall of the abutment tube, at least two connecting rods are rotatably mounted on the outer wall of the vertical tube, and a sliding groove is provided on the outer wall of the connecting rod, a sliding pin slidably mounted in the sliding groove is fixed to the end of the locking rod away from the abutment tube, the bottom end of the vertical tube is inserted into the abutment tube, and a convex ring is provided at the port position of the abutment tube to prevent the bottom end of the vertical tube from detaching.

[0014] Optionally, the extrusion portion includes an annular capsule located in the sandwich between the spring strip and the inner liner tube, the upper and lower parts of the annular capsule are fixed to the outer wall of the inner liner tube, two layers of diaphragms are provided inside the middle position of the annular capsule, and the two diaphragms form a storage cavity for storing the absorption liquid, the outer wall of the annular capsule located at the storage cavity is connected to a water outlet, and the water outlet is located in the gap between the adjacent spring strips, the outer wall of the inner liner tube is also connected to a water pipe, the two ends of the water pipe are respectively connected to the first water tank installed on the traveling vehicle and the storage cavity, and a one-way valve is installed in the water pipe;

[0015] The extrusion part also includes an elastic airbag installed between the lifting plate and the first slide plate, and the elastic airbag is connected with the inner space of the annular bags on the upper and lower sides of the storage cavity through an air pipe penetrating in the first connecting rod.

[0016] Optionally, a water outlet hole communicating with the abutting pipe is formed at the bottom of the insertion part, and the vertical pipe, the abutting pipe and the water outlet hole together form a fertilization channel. The vertical pipe is communicated with the second water tank through a hose. A top valve is slidably installed on the inner wall of the vertical pipe near the bottom end, and a top rod is fixed on the inner wall of the abutting pipe near the top end. When the top rod contacts and abuts against the top valve, the top valve opens the vertical pipe. A corrugated groove is formed on the side wall of the fixed cylinder. A dial rod is rotatably installed on the side wall of the first sliding plate, and a torsion spring capable of expanding outward is installed between the dial rod and the first sliding plate. The dial rod contacts and abuts against the inner wall of the corrugated groove.

[0017] Optionally, a heightening frame is fixed on the top of the traveling vehicle, and an electric telescopic cylinder is installed on the top of the heightening frame. The output end of the electric telescopic cylinder is rotatably connected to the top end of the lifting rod.

[0018] Optionally, the inner diameter of the water outlet hole gradually decreases from inside to outside.

[0019] Optionally, vertical grooves are formed on the inner walls of both sides of the fixed cylinder. Sliders are fixed on both sides of the first sliding plate, and the sliders are slidably installed in the corresponding vertical grooves.

[0020] Optionally, the inner wall thickness of the annular bladder gradually thickens from the middle to both sides.

[0021] Optionally, a smooth anti-sticking coating is coated on the outer wall of the elastic strip.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] First, the present invention inserts the intubation part into the soil, uses the bending and straightening actions of the elastic strip, and cooperates with the extrusion part to extrude the absorption liquid, which is mixed with the sandy soil to form a colloidal water retention layer. Subsequently, liquid fertilizer is injected into the holes through the fertilization channel. The water retention layer can effectively slow down the infiltration speed of the liquid fertilizer, extend its residence time in the main absorption range of crop roots, realize the coordinated work of precise fertilizer injection and water retention layer formation, greatly improve the fertilizer utilization rate, reduce the nutrient loss and environmental pollution problems caused by the rapid infiltration of liquid fertilizer, and at the same time create good water and nutrient conditions for crop roots, promoting crop growth.

[0024] Second, the present invention makes it easier for the intubation part to penetrate sandy soil by means of rotary insertion, improving the insertion efficiency and the fluency of operation. The expansion action of the elastic strip not only helps to form the water retention layer, but also can compact the soil around the holes to a certain extent, further enhancing the water retention effect and ensuring the adaptability and reliability of the device under different soil conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a right-side perspective view of the present invention;

[0026] Figure 2 is the left-side perspective view of the present invention;

[0027] Figure 3 is the front view of the present invention;

[0028] Figure 4 of the present invention Figure 3 is the sectional view along A-A and the partial enlarged view in the present invention;

[0029] Figure 5 is the left view of the present invention;

[0030] Figure 6 of the present invention Figure 5 is the sectional view along B-B and the partial enlarged view in the present invention;

[0031] Figure 7 is the exploded perspective view of the internal structure of the fixed cylinder of the present invention;

[0032] Figure 8 is the perspective view and partial enlarged view of the shrapnel strip of the present invention;

[0033] Figure 9 is the sectional schematic view of the first connecting rod and the internal air pipe of the present invention;

[0034] Figure 10 of the present invention Figure 4 is the sectional perspective view and partial enlarged view from a certain perspective of the present invention;

[0035] Figure 11 is the schematic view of the waveform groove and the lever of the present invention.

[0036] In the figure: 1, traveling vehicle; 2, heightening frame; 3, fixing frame; 4, fixed cylinder; 5, top plate part; 6, insertion part; 7, shrapnel strip; 8, inner lining pipe; 9, annular bladder; 10, diaphragm; 11, water delivery pipe; 12, water outlet; 13, lifting plate; 14, first connecting rod; 15, first sliding plate; 16, second connecting rod; 17, second sliding plate; 18, vertical pipe; 19, elastic airbag; 20, crank; 21, swing rod; 22, connecting rod; 23, top valve; 24, top rod; 25, abutting pipe; 26, air pipe; 27, waveform groove; 28, lever; 29, first water tank; 30, second water tank; 31, lifting rod; 32, through groove; 33, locking rod; 34, water outlet hole. Detailed implementation manners

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 to 11 , the present invention provides a technical solution: an agricultural planting irrigation and fertilization device, including a traveling vehicle 1, and further including:

[0039] A fixed cylinder 4 fixed to the head position of the traveling vehicle 1 through a fixing frame 3;

[0040] An insertion tube part arranged below the fixed cylinder 4 and capable of vertical adjustment. The insertion tube part includes a top plate part 5 and an insertion part 6. A plurality of elastic strip 7 are fixedly connected to the outer ring positions of the top plate part 5 and the insertion part 6 together, and a spring is also installed between the top plate part 5 and the insertion part 6. Inner lining tubes 8 are fixedly provided at the positions close to the inner ring of the top plate part 5 and the insertion part 6, and the two inner lining tubes 8 are slidably inserted into each other;

[0041] A lifting part arranged in the fixed cylinder 4, and the lifting part is used to pull the insertion part 6 to adjust up and down, and make the plurality of elastic strip 7 switch back and forth between a cylindrical shape and a drum shape formed together;

[0042] An extrusion part arranged in the interlayer of the elastic strip 7 and the inner lining tube 8. When the elastic strip 7 switches to the drum shape, the extrusion part extrudes the absorption liquid out from the gaps between the respective elastic strip 7, and the absorption liquid can mix the sandy soil and form a colloidal water retention layer;

[0043] A fertilization channel arranged at the center of the insertion tube part, and the fertilization channel is communicated with a second water tank 30 installed on the top of the traveling vehicle 1.

[0044] When the fertilization device is in use, the fixed cylinder 4 and the insertion part and other structures on it are moved to the area to be fertilized through the traveling vehicle 1. The traveling vehicle 1 can specifically use an automatic vehicle or can also adopt Figure 1 the shown handcart mode to facilitate the loading and transportation of liquid fertilizer;

[0045] After moving to the designated position, first, the vertical movement of the intubation part is controlled and adjusted through an external structure, and it can move downward. The purpose is to enable the insertion part to be inserted into the soil so that the liquid fertilizer can be directly injected from under the soil through the internal fertilization channel, thereby achieving the purpose of precise fertilization or direct root fertilization. However, due to the relatively weak fertilizer retention capacity of sandy soil itself, if liquid fertilizer is directly injected, it is easy for the liquid fertilizer to quickly penetrate downward and spread laterally, thus exceeding the main absorption range of crop roots, resulting in the inability of fertilizers to effectively accumulate around crop roots, reducing the utilization rate of fertilizers, causing nutrient waste and environmental pollution. Therefore, before injecting fertilizer through the fertilization channel, it is necessary to perform certain treatment on the soil to extend the infiltration time of the liquid fertilizer so that it can stay within the main absorption range of crop roots for a longer time. The specific implementation method is as follows:

[0046] When most of the insertion part 6 and the shrapnel strip 7 are inserted into the sandy soil, stop the continued insertion of the intubation part. At this time, the lifting part starts to intermittently pull the insertion part 6 upward. In this way, the shrapnel strip 7 can be compressed and bent outward, changing from the original straight tube shape to a drum shape. And with the cooperation of the elastic performance of the shrapnel strip 7 itself and the spring action between the top plate part 5 and the insertion part 6, the shrapnel strip 7 can continuously switch back and forth between the straight tube shape and the drum shape. When the shrapnel strip 7 forms a drum shape, it will expand and squeeze the soil towards the periphery, thereby expanding the inner diameter of the original soil hole. And when the shrapnel strip 7 bends, the gap between adjacent shrapnel strips 7 will increase, so that the extrusion part can extrude the absorbent liquid out from the gaps between each shrapnel strip 7, and the absorbent liquid can be mixed with the sandy soil to form a colloidal water retention layer, thereby improving the water and fertilizer retention capacity of the local soil.

[0047] Among them, the absorbent liquid can adopt bentonite suspension or superabsorbent polymer (SAP) solution. When the bentonite suspension is mixed with the sandy soil, after the water evaporates or the soil particles adsorb the bentonite particles in the suspension, a colloidal coating will be formed, thereby achieving the purpose of forming a water retention layer in the pit formed by inserting the intubation part into the soil. And superabsorbent polymer is a kind of polymer material that can absorb a large amount of water. When it is dissolved in water to form a solution and mixed with the sandy soil, SAP will absorb the water in the soil and expand to form a substance similar to a colloid, which can also achieve the purpose of forming a water retention layer. In this case, bentonite suspension is preferably used because bentonite resources are rich, the price is relatively cheap, and the environmental protection is good. Bentonite itself is a natural mineral and is harmless to the environment, which can reduce certain economic costs;

[0048] It is worth mentioning that since the absorbent liquid is extruded during the upward movement of the insertion part 6 and the bending of the elastic strip 7, the continuous bending and straightening of the elastic strip 7 can further compact the formed water retention layer, thereby further improving the water retention effect. Moreover, the upward movement of the insertion part 6 provides space for the absorbent liquid to flow into the bottom of the pit, so that the bottom of the formed water retention layer also has a water retention effect, further slowing down the infiltration rate of the subsequent liquid fertilizer injected into the pit, and achieving the effect of water and fertilizer retention to the greatest extent.

[0049] Subsequently, after the water retention layer is formed, the liquid fertilizer can be injected through the fertilization channel. Then, the insertion part is adjusted to move upward to separate it from the soil, and the traveling vehicle 1 moves to the next fertilization position. Then, the pit can be backfilled manually or by the soil covering plate on the traveling vehicle 1.

[0050] Furthermore, in order to improve the fertilization efficiency, multiple groups of fixed cylinders and insertion parts can also be installed at the head of the traveling vehicle 1 to facilitate fertilization of multiple rows of crops simultaneously, as Figures 1 - 2 shown.

[0051] In one relatively preferred embodiment, an implementation method for driving the lifting of the lifting rod 31 is provided, that is, the way the insertion part inserts into the soil;

[0052] The top of the fixed cylinder 4 is penetrated and installed with a lifting rod 31 that can be vertically adjusted. The bottom end of the lifting rod 31 is fixed with a lifting plate 13. The bottom of the lifting plate 13 is fixedly connected to the top plate part 5 through at least two first connecting rods 14. Both side walls of the fixed cylinder 4 are rotatably installed with cranks 20 driven by motors. The ends of the two cranks 20 are jointly rotatably installed with a swing rod 21. The swing rod 21 is inserted between the two first connecting rods 14 and is designed to be inclined.

[0053] The top of the traveling vehicle 1 is fixed with a heightening frame 2. The top of the heightening frame 2 is installed with an electric telescopic cylinder, and the output end of the electric telescopic cylinder is rotatably connected to the top end of the lifting rod 31.

[0054] Specifically, refer to Figure 4 and Figure 10 . During fertilization, the lifting rod 31 is driven to descend by the electric telescopic cylinder or a telescopic cylinder such as a hydraulic cylinder, thereby driving the lifting plate 13, the first connecting rod 14, and the top plate part 5 to move downward. At the same time, the motors on both sides of the fixed cylinder 4 drive the two cranks 20 to rotate, thereby driving the swing rod 21 to rotate in a conical scanning manner, and then driving the top plate part 5 to rotate reciprocally while moving downward through the first connecting rod 14. In this way, when the insertion part inserts into the soil, it can be more easily inserted into the sandy soil by rotating, so as to achieve the purpose of improving the fertilization efficiency;

[0055] Moreover, it is worth mentioning that the reciprocating rotation of the intubation part also causes the above-mentioned elastic strip 7 to reciprocate during the process of bending and straightening, which can further increase the area of the extrusion part for extruding the absorption liquid, thereby accelerating the formation of the water retention layer and further achieving the purpose of improving the fertilization efficiency.

[0056] In one relatively preferred embodiment, an implementation manner of the lifting part is provided;

[0057] The lifting part includes a first sliding plate 15 and a second sliding plate 17 slidably mounted on the outer wall of the first connecting rod 14, and the crank 20 is located between the two. The first sliding plate 15 and the second sliding plate 17 are fixedly connected by a second connecting rod 16. A vertical pipe 18 is fixed to the bottom of the second sliding plate 17. A through groove 32 is formed at the top of the top plate part 5. At least two locking rods 33 are rotatably mounted in the through groove 32. A torsion spring is provided between the locking rods 33 and the through groove 32, and the locking rods 33 are evenly distributed in a ring shape about the axis of the top plate part 5. A resisting pipe 25 is fixed at the center of the insertion part 6, and the locking rods 33 are in frictional contact with the outer wall of the resisting pipe 25. At least two connecting rods 22 are rotatably mounted on the outer wall of the vertical pipe 18, and a sliding groove is formed on the outer wall of the connecting rods 22. A sliding pin slidably mounted in the sliding groove is fixed to the end of the locking rod 33 away from the resisting pipe 25. The bottom end of the vertical pipe 18 is inserted into the resisting pipe 25, and a convex ring for preventing the bottom end of the vertical pipe 18 from detaching is provided at the port position of the resisting pipe 25.

[0058] Specifically, refer to Figure 4 and Figure 10 , during the process of the intubation part moving downward and inserting into the soil, due to the force on the insertion part 6, the resisting pipe 25 has a tendency to move upward. At this time, due to the frictional force between the locking rod 33 and the resisting pipe 25, it will play a limiting role on the resisting pipe 25 (that is, when the resisting pipe 25 moves upward, it will drive the locking rod 33 to rotate, and the rotation of the locking rod 33 will play a clamping role on the resisting pipe 25. Therefore, the locking rod 33 can play a limiting role on the resisting pipe 25, and the role of the torsion spring is to provide the locking rod 33 with a torsional force to rotate towards the resisting pipe 25), so that it can be ensured that when the intubation part is inserted into the soil, the elastic strip 7 will not bend first, especially when the hardness of sandy soil is relatively hard;

[0059] After stopping inserting into the soil, at this time, the first sliding plate 15 and the second sliding plate 17 will move downward with the intubation part, causing the first sliding plate 15 to move downward until it can contact the crank 20. At this time, the rotation of the crank 20 will drive the first sliding plate 15 to push upward, and drive the second sliding plate 17 and the vertical pipe 18 to move upward under the action of the second connecting rod 16. During this process, the vertical pipe 18 will first drive the locking rod 33 to rotate through the connecting rod 22, causing it to disengage from the resisting pipe 25, and then the bottom end of the vertical pipe 18 will pull the resisting pipe 25 upward through the convex ring at the top end of the resisting pipe 25, thereby completing the process of lifting the resisting pipe 25 and the insertion part 6 upward;

[0060] Then, when the crank 20 rotates and disengages from the first slide plate 15, the insertion portion 6 will reset under the action of the spring. At the same time, the above structure will also be pulled downward to complete the reset. In this way, as the crank 20 rotates continuously, the insertion portion 6 can be driven to move up and down continuously for adjustment, thereby achieving the purpose of the above-mentioned elastic strip 7 switching back and forth between the straight tube shape and the drum shape;

[0061] Moreover, it is worth noting that due to the design of the connecting rod 22 and the locking rod 33, the abutting tube 25 can only be lifted when the vertical tube 18 is lifted, and will not bend when inserted into the soil, avoiding the interference problem between different processes. Moreover, the vertical moving distance of the vertical tube 18 will not exceed the maximum rotation amplitude of the locking rod 33 and the connecting rod 22, that is, the two rotate to the same straight line state to avoid interference in the stroke.

[0062] In one relatively preferred embodiment, an implementation manner of the extrusion portion is provided;

[0063] The extrusion portion includes an annular bladder 9 located in the interlayer between the elastic strip 7 and the inner lining tube 8. The upper and lower parts of the annular bladder 9 are fixed to the outer wall of the inner lining tube 8. There are two diaphragms 10 inside the middle position of the annular bladder 9, and the two diaphragms 10 form a storage cavity for storing the absorption liquid. The outer wall of the annular bladder 9 at the storage cavity is connected with a water outlet 12, and the water outlet 12 is located in the gap between adjacent elastic strips 7. The outer wall of the inner lining tube 8 is also connected with a water delivery pipe 11. The two ends of the water delivery pipe 11 are respectively communicated with the first water tank 29 installed on the traveling vehicle 1 and the storage cavity, and a one-way valve is installed in the water delivery pipe 11;

[0064] The extrusion portion further includes an elastic airbag 19 installed between the lifting plate 13 and the first slide plate 15, and the elastic airbag 19 is communicated with the internal spaces of the annular bladder 9 on the upper and lower sides of the storage cavity through an air pipe 26 penetrating through the first connecting rod 14.

[0065] Specifically, reference can be made to Figure 4 、 Figure 9 and Figure 10 , from the above content, it can be seen that when the abutting tube 25 is lifted upward, the first slide plate 15 will move upward under the action of the crank 20, and at the same time, it will squeeze the elastic airbag 19, so that the air in it is squeezed into the annular bladder 9 through the air pipe 26. On the one hand, the expansion of the annular bladder 9 can exert an outward thrust on the elastic strip 7, which helps the elastic strip 7 to change from straight to bent in the initial state. On the other hand, the expansion of the upper and lower spaces of the annular bladder 9 will squeeze the two diaphragms 10 towards the middle, that is, squeeze the storage cavity, and then the absorption liquid in the storage cavity can be extruded out through the water outlet 12 to achieve the purpose of extruding the absorption liquid;

[0066] Moreover, it is worth noting that the water outlet 12 can be set as a small section of flexible hose, and it is located in the gap between the adjacent elastic strip 7. This means that when the elastic strip 7 bends into a drum shape, the gap of the gap increases, and the water outlet 12 will also open accordingly. On the contrary, when the elastic strip 7 returns to a straight state, the gap of the gap decreases, and the water outlet 12 is correspondingly squeezed and closed;

[0067] Then, during the process of the first slide plate 15 moving downward and resetting, the elastic airbag 19 resets under the action of its own elasticity, and will suck back the air in the annular airbag 9 again. The contraction of the annular airbag 9 will adsorb the two diaphragms 10 to both sides, thereby increasing the space in the storage cavity. The negative pressure state formed will supplement the absorbent liquid in the first water tank 29 through the water delivery pipe 11. In this way, with the state change of the elastic strip 7, it can not only continuously squeeze out the absorbent liquid, but also automatically complete the process of replenishing the absorbent liquid, further improving the working efficiency.

[0068] In one of the more preferred embodiments, a fertilization implementation method is provided;

[0069] The bottom of the insertion part 6 is provided with a water outlet hole 34 communicating with the abutting pipe 25, and the vertical pipe 18, the abutting pipe 25 and the water outlet hole 34 together form a fertilization channel. The vertical pipe 18 is communicated with the second water tank 30 through a flexible hose. A top valve 23 is slidably installed on the inner wall of the vertical pipe 18 near the bottom end, and a top rod 24 is fixed on the inner wall of the abutting pipe 25 near the top end. When the top rod 24 contacts and abuts against the top valve 23, the top valve 23 opens the vertical pipe 18. A corrugated groove 27 is provided on the side wall of the fixed cylinder 4. A lever 28 is rotatably installed on the side wall of the first slide plate 15, and a torsion spring that can make it open outward is installed between the lever 28 and the first slide plate 15. The lever 28 contacts and abuts against the inner wall of the corrugated groove 27.

[0070] As can be seen from the above, fertilization is carried out at the end, that is, after the water retention layer is formed. When the lifting plate 13 moves upward under the drive of the lifting rod 31 and the telescopic cylinder, at this time the water retention layer has been formed, and the insertion part has also withdrawn from the hole. At this time, when the first slide plate 15 moves upward together, the lever 28 on its side wall will continuously swing and rotate along the inner wall of the corrugated groove 27 and open, see Figure 11, the end of the lever 28 will slide along the inner wall of the corrugated groove 27, and while overcoming the frictional force between the two and the torsional force of the torsion spring, it will successively cross the wave crests of the corrugated groove 27 one by one. In this way, the upward movement speed of the first slide plate 15 and the lifting plate 13 is not synchronized. That is, when the lifting plate 13 moves upward at a constant speed, the first slide plate 15 will show a state of deceleration, recovery, and then deceleration (i.e., a jerky state). This will cause a speed difference between the vertical pipe 18 and the abutting pipe 25 when they move upward. When the upward movement speed of the vertical pipe 18 is less than that of the vertical pipe 18, at this time, the bottom end of the vertical pipe 18 will insert into the abutting pipe 25, so that the ejector rod 24 in the abutting pipe 25 will push open the top valve 23, and then the vertical pipe 18 and the abutting pipe 25 will be connected, so that the liquid fertilizer can be injected into the hole through the fertilization channel jointly composed of the vertical pipe 18, the abutting pipe 25, and the water outlet hole 34, completing the fertilization process;

[0071] Moreover, since the vertical pipe 18 is intermittently inserted into the abutting pipe 25, the top valve 23 is intermittently connected. In this way, the liquid fertilizer can be intermittently injected into the hole. Through this pulsed liquid injection, it is also beneficial to push out the soil in the water outlet hole 34 by the liquid fertilizer, thus avoiding blockage.

[0072] For the specific structure of the top valve 23, reference can be made to Figure 4 or Figure 10 , its principle is the same as that of the check valve, and the connection mode is only to push it open and connect by the ejector rod 21, so it will not be elaborated in detail.

[0073] It should be noted that when the vertical pipe 18 moves downward, since the locking rod 33 remains in the locked state, through the sliding fit between the chute opened on the connecting rod 22 and the sliding pin on the locking rod 33, the connecting rod 22 can move downward with the vertical pipe 18 without causing stroke interference with the locking rod 33, so as to ensure the normal connection of the fertilization channel.

[0074] In one relatively preferred embodiment, the inner diameter of the water outlet hole 34 gradually decreases from inside to outside.

[0075] Reference can be made to Figure 10 , by designing the water outlet hole 34 as a tapered hole, on the one hand, it can avoid a large amount of sand and soil from entering when it is inserted into the soil, and on the other hand, it can also be dredged in combination with the above-mentioned pulsed fertilization method.

[0076] In one relatively preferred embodiment, vertical grooves are provided on the inner walls of both sides of the fixed cylinder 4, sliders are fixed on both sides of the first slide plate 15, and the sliders are slidably installed in the corresponding vertical grooves.

[0077] Reference can be made to Figure 10 , through the cooperation between the chute and the slider, the first slide plate 15 can be more stable and smooth when sliding and adjusting.

[0078] In one of the more preferred embodiments, the inner wall thickness of the annular bladder 9 gradually increases from the middle to both sides.

[0079] Refer to Figure 6 , when the elastic strip 7 is bent, the bending degree of the middle part is the largest. Therefore, the annular bladder 9 is preferably inflated from the middle position to provide the supporting force. Therefore, by designing the inner wall thickness of the annular bladder 9, the inflation degree of the middle part can be made the most obvious when it is inflated.

[0080] In one of the more preferred embodiments, the outer wall of the elastic strip 7 is coated with a smooth anti-sticking coating.

[0081] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed according to the existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology. Therefore, no specific description will be made here.

[0082] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural planting irrigation and fertilization device, comprising a traveling vehicle, characterized in that: Also includes: A fixing cylinder fixed at the head position of the traveling vehicle by a fixing frame; A pipe inserting part is arranged below the fixed cylinder and can be adjusted vertically, the pipe inserting part includes a top plate part and an inserting part, a plurality of spring strips are fixedly connected to the top plate part and the outer ring position of the inserting part, and a spring is installed between the top plate part and the inserting part, and an inner liner tube is fixed to the top plate part and the inserting part near the inner ring position, and the two inner liner tubes are slidably plugged into each other; A lifting part is arranged in the fixed cylinder, and the lifting part is used to pull the insertion part up and down to adjust and make the multiple spring strips switch back and forth between the cylinder shape and the drum shape formed by them; An extrusion part is arranged in the sandwich layer between the spring strips and the inner liner pipe. When the spring strips are switched to a drum shape, the extrusion part squeezes out the absorption liquid from the gaps between the spring strips, and the absorption liquid can mix the gravel and soil and form a gelatinous water-retaining layer; A fertilization channel is arranged at the center of the insertion tube portion, and the fertilization channel is communicated with a second water tank installed on the top of the traveling vehicle.

2. The agricultural planting irrigation and fertilization device according to claim 1, characterized in that: A lifting rod that can be vertically moved and adjusted is installed through the top of the fixed cylinder, and a lifting plate is fixed to the bottom end of the lifting rod. The bottom of the lifting plate is fixedly connected to the top plate by at least two first connecting rods. Cranks driven by a motor are rotatably installed on both side walls of the fixed cylinder, and a swing rod is rotatably installed at the ends of the two cranks. The swing rod is inserted between the two first connecting rods and is designed to be inclined.

3. The agricultural planting irrigation and fertilization device according to claim 2, characterized in that: The lifting part includes a first slide plate and a second slide plate slidably mounted on the outer wall of the first connecting rod, and the crank is located therebetween, the first slide plate and the second slide plate are fixedly connected by a second connecting rod, a vertical tube is fixed to the bottom of the second slide plate, a through groove is provided at the top of the top plate, at least two locking rods are rotatably mounted in the through groove, a torsion spring is provided between the locking rod and the through groove, and the locking rods are evenly distributed in a ring shape about the axis of the top plate, an abutment tube is fixed to the center of the insertion part, and the locking rod is in frictional contact with the outer wall of the abutment tube, at least two connecting rods are rotatably mounted on the outer wall of the vertical tube, and a sliding groove is provided on the outer wall of the connecting rod, a sliding pin slidably mounted in the sliding groove is fixed to the end of the locking rod away from the abutment tube, the bottom end of the vertical tube is inserted into the abutment tube, and a convex ring is provided at the port position of the abutment tube to prevent the bottom end of the vertical tube from detaching.

4. The agricultural planting irrigation and fertilization device according to claim 3, characterized in that: The extrusion part includes an annular bag located in the sandwich between the spring strip and the inner liner tube, the upper and lower parts of the annular bag are fixed to the outer wall of the inner liner tube, two layers of diaphragms are arranged inside the middle position of the annular bag, and the two diaphragms form a storage cavity for storing the absorption liquid, the outer wall of the annular bag located at the storage cavity is connected to a water outlet, and the water outlet is located in the gap between the adjacent spring strips, the outer wall of the inner liner tube is also connected to a water pipe, the two ends of the water pipe are respectively connected to the first water tank installed on the traveling vehicle and the storage cavity, and a one-way valve is installed in the water pipe; The extrusion part also includes an elastic airbag installed between the lifting plate and the first slide plate, and the elastic airbag is connected with the inner space of the annular bags on the upper and lower sides of the storage cavity through an air pipe penetrating in the first connecting rod.

5. The agricultural planting irrigation and fertilization device according to claim 3, characterized in that: A water outlet hole connected with the abutment tube is provided at the bottom of the insertion part, and the vertical tube, the abutment tube and the water outlet hole together constitute a fertilization channel. The vertical tube is connected with the second water tank through a hose. A top valve is slidably installed on the inner wall of the vertical tube near the bottom end, and a top rod is fixed on the inner wall of the abutment tube near the top end. When the top rod contacts and presses against the top valve, the top valve opens the vertical tube. A corrugated groove is provided on the side wall of the fixed cylinder, and a lever is rotatably installed on the side wall of the first slide plate, and a torsion spring that enables the lever to open outward is installed between the lever and the first slide plate, and the lever contacts and presses against the inner wall of the corrugated groove.

6. The agricultural planting irrigation and fertilization device according to claim 2, characterized in that: A heightening frame is fixed on the top of the traveling vehicle, an electric telescopic cylinder is installed on the top of the heightening frame, and an output end of the electric telescopic cylinder is rotatably connected to the top end of the lifting rod.

7. The agricultural planting irrigation and fertilization device according to claim 5, characterized in that: The inner diameter of the water outlet hole gradually decreases from the inside to the outside.

8. The agricultural planting irrigation and fertilization device according to claim 3, characterized in that: The inner walls on both sides of the fixed cylinder are provided with vertical grooves, and sliding blocks are fixed on both sides of the first sliding plate, and the sliding blocks are slidably installed in the corresponding vertical grooves.

9. The agricultural planting irrigation and fertilization device according to claim 4, characterized in that: The inner wall thickness of the annular capsule gradually increases from the middle to both sides.

10. The agricultural planting irrigation and fertilization device according to any one of claims 1 to 8, characterized in that: The outer wall of the spring strip is coated with a smooth anti-stick coating.

Images