A rice machine transplanting side deep fertilization synchronous device

Abstract

The application discloses a kind of rice machine transplanting side deep fertilization synchronous device in the technical field of agricultural machinery, including the fixed seat for suspending the synchronous device, and the fixed seat is detachably connected with side deep fertilization cylinder, and the side deep fertilization cylinder includes upper cylinder, first lower cylinder piece, second lower cylinder piece, first sliding assembly, second sliding assembly and third sliding assembly, first lower cylinder piece and second lower cylinder piece are slidably connected by first sliding assembly, and first lower cylinder piece and second lower cylinder piece are slidably connected with the inner wall bottom of upper cylinder by second sliding assembly and third sliding assembly respectively, and the center of the inner top wall of upper cylinder is fixedly connected with fixed rod, and the bottom of fixed rod is provided with block fertilizer component, and the bottom end of first lower cylinder piece and second lower cylinder piece is fixedly connected with semicircular soil cover, and the top of upper cylinder is connected with fertilizer storage component for storing and supplementing fertilizer by hose.The present application is simple and easy to operate, and the efficiency of side deep fertilization is improved by side deep fertilization cylinder synchronous rice transplanter.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a synchronous device for side-deep fertilization during rice transplanting. Background Technology

[0002] Side-deep fertilization for rice is an advanced and applicable mechanized fertilization technology. During rice transplanting, fertilizer is applied quantitatively, precisely, evenly, and reliably to the soil on the side of the seedling roots. This promotes the absorption of fertilizer by the seedling roots, improves fertilizer utilization, reduces the total amount of fertilizer applied and non-point source pollution caused by fertilizer runoff, and lowers labor intensity and labor costs.

[0003] Currently, rice cultivation mostly uses rice transplanters to plant seedlings in the fields. To achieve simultaneous side-deep fertilization, manually applying side-deep fertilization after the transplanter has finished planting obviously increases manpower consumption, wastes time, and reduces transplanting efficiency. Therefore, it is necessary to propose a rice transplanter side-deep fertilization synchronization device that can be suspended on the existing transplanter and can complete side-deep fertilization at the same time as transplanting. Summary of the Invention

[0004] To address the problem of low efficiency in manual side-deep fertilization after rice transplanting, the purpose of this invention is to improve the efficiency of side-deep fertilization by using a rice transplanter with a side-deep fertilization cylinder for simultaneous rice transplanting.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: a rice transplanter side-deep fertilization synchronous device, comprising a fixed seat for suspending the synchronous device, wherein the fixed seat is detachably connected to a side-deep fertilization cylinder.

[0006] The side-deep fertilization cylinder includes an upper cylinder, a first lower cylinder, a second lower cylinder, a first sliding assembly, a second sliding assembly, and a third sliding assembly. The first lower cylinder and the second lower cylinder are slidably connected to each other through the first sliding assembly. The first lower cylinder and the second lower cylinder are slidably connected to the bottom of the inner wall of the upper cylinder through the second sliding assembly and the third sliding assembly, respectively. A fixing rod is fixedly connected to the center of the inner top wall of the upper cylinder. A fertilizer retaining assembly is provided at the bottom of the fixing rod. Semi-circular soil pressing covers are fixedly connected to the bottom ends of the first lower cylinder and the second lower cylinder. A fertilizer storage assembly for storing and replenishing fertilizer is connected to the top of the upper cylinder through a flexible hose.

[0007] The basic principle is as follows: When the side-deep fertilization cylinder moves downward, the hose changes from horizontal to vertical. The granular fertilizer is transported from the fertilizer storage component to the upper cylinder through the hose by gravity. When the side-deep fertilization cylinder enters the field for side-deep fertilization, the first and second lower cylinders will be subjected to the upward centrifugal force generated by the rapid downward movement of the robotic arm and the upward supporting force generated by the side-deep fertilization cylinder contacting the paddy field soil. Since the second and third sliding components are in their initial positions at this time, the upward force will not cause slippage. The first and second lower cylinders will be pressed into the paddy field soil to form a cylindrical pit, which creates a fertilization channel for the granular fertilizer.

[0008] When the side-deep fertilization cylinder is lifted, the first and second lower cylinders will be subjected to downward forces, such as the downward friction generated by the side wall of the side-deep fertilization cylinder in contact with the soil. At this time, the second and third sliding components begin to slide, causing the first and second lower cylinders to rotate downwards. As the rotation continues, several pressure plates will overlap, reducing the coverage area and creating a leak at the bottom. At the same time, the first fertilizer baffle plate fixedly connected to the top of the first lower cylinder will also rotate downwards. Since the first fertilizer baffle plate is fixedly connected to the fixed rod at its center, it will tilt, while the second fertilizer baffle plate fixedly connected to the top of the second lower cylinder will rotate downwards normally. As a result, the first and second fertilizer baffle plates lose their fertilizer-blocking function, and the granular fertilizer accumulated on top will fall through the formed opening and leak out from the leak at the bottom, falling to the bottom of the fertilization channel constructed in the previous stage, thus completing the side-deep fertilization for synchronous rice transplanting.

[0009] The beneficial effects of the basic scheme are: 1. The overall effect of the device is to press the pit when descending and to apply fertilizer when rising. Applying fertilizer when rising can reduce the problem that fertilizer cannot fall out or falls too shallowly due to the soil being squeezed into the device when descending, thus improving the efficiency of side-deep fertilization.

[0010] 2. The pressure pit during descent can reduce the problem of water and soil entering the device due to the squeezing generated during descent, thus increasing the service life of the device.

[0011] 3. The sliding component design utilizes the kinetic energy of the mechanical arm rising and falling during rice transplanting using the attached rice transplanter claws. It eliminates the need for an external power supply device, facilitates disassembly and installation, and improves the efficiency of the device's side-deep fertilization.

[0012] Furthermore, the upper parts of the first and second lower cylindrical plates are respectively 3 / 5 cylindrical plates and semi-cylindrical plates. The diameter and height of the first lower cylindrical plate are smaller than those of the second lower cylindrical plate and are embedded in the second lower cylindrical plate to form a complete cylinder. The lower parts of the first and second lower cylindrical plates are both frustum cylinders with a larger top surface area and a smaller bottom surface area.

[0013] The beneficial effects of the basic design are as follows: When the first and second lower cylinders are lowered and relatively closed, the portion of the first lower cylinder overlapping the second lower cylinder (3 / 5 of the cylinder) rotates out to maintain the tight integrity of the side wall of the side-deep fertilization cylinder. The semi-circular design of the soil pressing cover and its non-plane design enable relative rotation between the soil pressing covers, reducing the problem of soil and water leakage from the side wall that leads to failure of side-deep fertilization. This effectively realizes the side-deep fertilization function of the device. In addition, the design of the frustum cylinder at the bottom of the first and second lower cylinders reduces the force-bearing area of ​​the side-deep fertilization cylinder in contact with the paddy field, increases its downward pressure, and improves the efficiency of pressing the pit.

[0014] Furthermore, the first sliding assembly includes a first slider and a first groove. The first slider is fixedly connected to the overlap between the outer wall of the first lower cylinder and the second lower cylinder, and the first groove is located on the inner wall of the second lower cylinder corresponding to the first slider.

[0015] The beneficial effects of the basic scheme are: both the first and second lower cylinders rotate downwards, and the first and second lower cylinders rotate counterclockwise and clockwise respectively. At this time, the first slider will slide along the first groove to assist the rotation of the two cylinders. The design of the first slider and the first groove also plays a limiting role for the first and second lower cylinders, reducing the problem of uneven fertilization and failure to achieve the function due to the uncertainty of the vertical position of rotation.

[0016] Furthermore, the second sliding assembly includes a second slider and a second slide groove. The second slider is fixedly connected to the junction of the top of the outer wall of the first lower cylinder and the upper cylinder. The third sliding assembly includes a third slider and a third slide groove. The third slider is fixedly connected to the junction of the top of the outer wall of the second lower cylinder and the upper cylinder. The second slide groove and the third slide groove are respectively embedded in the inner wall of the upper cylinder on both sides of the second slider and the third slider. The second slide groove and the third slide groove are two slide grooves that slide from top to bottom but in opposite directions.

[0017] The beneficial effects of the basic scheme are as follows: When the device is lifted along with the attached seedling claws, the centrifugal force and soil friction cause the second and third sliders to slide from the top of the chute to the bottom along the second and third chutes, respectively. At the same time, this provides a traction and limiting effect on the first and second lower cylinders. Due to the downward and inward displacement of the first and second lower cylinders, the first slider will slide along the first chute in the direction of increasing overlap. The first slider and the first chute limit and assist the relative displacement of the first and second lower cylinders, improving the stability of the device. Compared with direct displacement, this reduces the problem of device failure caused by mud and sand blockage.

[0018] Furthermore, the fertilizer storage component includes an upper outer shell and a lower outer shell, which are detachably connected, and a connecting groove is provided at the connection between the upper and lower outer shells.

[0019] The beneficial effects of the basic scheme are: the shape of the connecting groove can be changed according to the needs, and the centrifugal force generated by gravity and the rotation of the robotic arm allows the fertilizer to enter through the hose into the upper cylinder. Since the upper cylinder does not have the function of storing fertilizer, the upper and lower outer shells are designed to be assembled and fitted on the stationary arm of the robotic arm to increase the amount of fertilizer during the synchronous side-deep fertilization process of rice transplanting, reduce the waste of manpower and time due to the replenishment of fertilizer during the rice transplanting process, and increase the practicality of the device.

[0020] Furthermore, the fertilizer blocking assembly includes a first fertilizer blocking plate and a second fertilizer blocking plate. The first fertilizer blocking plate and the second fertilizer blocking plate are horizontally fixedly connected to the top of the first lower cylinder plate and the second lower cylinder plate, respectively. Both the first fertilizer blocking plate and the second fertilizer blocking plate are semi-circular plates, and the bottom end of the fixing rod is fixedly connected to the center of the first fertilizer blocking plate.

[0021] The beneficial effects of the basic scheme are as follows: the fertilizer transported from the fertilizer storage component falls into the upper cylinder and lands on the first and second fertilizer baffles. Since the upper cylinder does not contact the paddy field, the problem of direct contact between fertilizer and water is reduced. When side-deep fertilization is required, the descent of the first and second lower cylinders causes the first fertilizer baffle to tilt, while the second fertilizer baffle descends normally. This creates a leak at the connection between the first and second fertilizer baffles, allowing the fertilizer accumulated on top to leak out. This achieves the effect of fertilizer falling out as the side-deep fertilization cylinder rises. This design reduces the problem of water entering the openings and causing blockages due to fertilizer falling first to the bottom of the first and second lower cylinders, thus improving the practicality of the device.

[0022] Furthermore, the first baffle plate is made of a flexible plastic plate.

[0023] The beneficial effects of the basic scheme are: since the first baffle plate will tilt under the action of the fixed rod and the first lower cylinder plate, the design of the elastic material reduces the descent resistance of the first lower cylinder plate, further reducing the possibility that the first lower cylinder plate cannot complete its due performance due to insufficient downward force.

[0024] Furthermore, several springs are fixedly connected to the top wall of the upper cylinder. The bottom of some springs is fixedly connected to the top surface of the first fertilizer baffle, and the bottom of other springs is fixedly connected to the top surface of the second fertilizer baffle.

[0025] The beneficial effects of the basic scheme are: the design of several springs is to limit the initial position of the fertilizer baffle. When the first and second lower cylinders descend, several springs will be stretched to store energy. When the downward force is released, the springs release energy and pull the first and second fertilizer baffles back to the initial closed state, reducing fertilizer waste in the non-side deep fertilization stage and improving the efficiency of the device for side deep fertilization.

[0026] Furthermore, a sealing strip is provided at the overlap of the first lower cylinder and the second lower cylinder, and the sealing strip is located on the outer wall of the first lower cylinder.

[0027] The beneficial effects of the basic scheme are: during the use of the device, the first and second lower cylinder plates will be immersed in water. The sealing strip at the connection between the first and second lower cylinder plates can reduce the problem of water leakage caused by gaps due to the purpose of sliding. This reduces the problem of fertilizer clumping and clogging caused by water backflow through the fertilizer baffle plate due to water ingress, thus improving the practicality of the device.

[0028] Furthermore, several inverted slots are provided on the outer walls of both the first and second lower cylindrical plates.

[0029] The beneficial effects of the basic scheme are: when the side-deep fertilization cylinder is lifted, several inverted slots will hook onto the soil on the outer walls of the first and second lower cylinders, increasing the downward friction on the cylinder body, which helps the first and second lower cylinders rotate and descend, reducing the problem of side-deep fertilization not being completed due to lack of power. Attached Figure Description

[0030] Figure 1 This is an isometric view of the rice transplanter side-deep fertilization synchronous device in an embodiment of the present invention.

[0031] Figure 2 This is a frontal cross-sectional view of the side-deep fertilization cylinder in the rice transplanter side-deep fertilization synchronous device in an embodiment of the present invention.

[0032] Figure 3 This is an exploded isometric view of the side-deep fertilization cylinder in the rice transplanter side-deep fertilization synchronous device in an embodiment of the present invention.

[0033] Figure 4 This is a schematic diagram of the second and third chutes in the synchronous device for side-deep fertilization during rice transplanting in an embodiment of the present invention. Detailed Implementation

[0034] The following detailed description illustrates the specific implementation method:

[0035] The reference numerals in the accompanying drawings include: fixed base 1, side-deep fertilizer cylinder 2, upper cylinder 201, first lower cylinder 202, second lower cylinder 203, soil pressing cover 204, inverted groove 205, fertilizer storage component 3, upper outer shell 301, lower outer shell 302, connecting groove 303, fixed rod 4, fertilizer blocking component 5, first fertilizer blocking plate 501, second fertilizer blocking plate 502, spring 6, first slider 8, first sliding groove 9, second slider 10, second sliding groove 11, third slider 12, third sliding groove 13, water-absorbing layer 14, sealing strip 15.

[0036] Example 1, basically as shown in the attached document. Figures 1-4As shown: A rice transplanter side-deep fertilization synchronous device includes a fixed base 1 for suspending the synchronous device, and the fixed base 1 is detachably connected to a side-deep fertilization cylinder 2.

[0037] The side-deep fertilizer applicator 2 includes an upper cylinder 201, a first lower cylinder 202, a second lower cylinder 203, a first sliding assembly, a second sliding assembly, and a third sliding assembly. The upper parts of the first lower cylinder 202 and the second lower cylinder 203 are respectively 3 / 5 cylindrical and semi-cylindrical. The diameter and height of the first lower cylinder 202 are both smaller than those of the second lower cylinder 203, and it is embedded in the second lower cylinder 203 to form a complete cylinder. The lower parts of the first lower cylinder 202 and the second lower cylinder 203 are both frustum-shaped cylinders with a larger top surface area and a smaller bottom surface area. A sealing strip 15 is provided at the overlap of the first lower cylinder 202 and the second lower cylinder 203. The sealing strip 15 is located on the outer wall of the first lower cylinder 202. Several inverted slots 205 are opened on the outer walls of both the first lower cylinder 202 and the second lower cylinder 203. The first lower cylinder 202 and the second lower cylinder 203 are slidably connected by the first sliding assembly. The first sliding assembly includes a first slider 8 and a first sliding... The groove 9 is located at the intersection of the outer wall of the first lower cylindrical plate 202 and the second lower cylindrical plate 203. The first sliding groove 9 is located at the inner wall of the second lower cylindrical plate 203 corresponding to the first sliding block 8. The first lower cylindrical plate 202 and the second lower cylindrical plate 203 are slidably connected to the bottom of the inner wall of the upper cylinder 201 through the second sliding assembly and the third sliding assembly. The second sliding assembly includes the second sliding block 10 and the second sliding groove 11. The second sliding block 10 is fixedly connected at the junction of the top of the outer wall of the first lower cylindrical plate 202 and the upper cylinder 201. The third sliding assembly includes the third sliding block 12 and the third sliding groove 13. The third sliding block 12 is fixedly connected at the junction of the top of the outer wall of the second lower cylindrical plate 203 and the upper cylinder 201. The second sliding groove 11 and the third sliding groove 13 are embedded in the inner wall of the upper cylinder 201, corresponding to the second sliding block 10 and the third sliding block 12 respectively. The second sliding groove 11 and the third sliding groove 13 are two sliding grooves that slide from top to bottom but in opposite directions.

[0038] A fixing rod 4 is fixedly connected to the center of the inner top wall of the upper cylinder 201. A fertilizer blocking component 5 is provided at the bottom of the fixing rod 4. The fertilizer blocking component 5 includes a first fertilizer blocking plate 501 and a second fertilizer blocking plate 502. The first fertilizer blocking plate 501 and the second fertilizer blocking plate 502 are respectively horizontally fixedly connected to the top of the first lower cylinder 202 and the second lower cylinder 203. The first fertilizer blocking plate 501 and the second fertilizer blocking plate 502 are both semi-circular plates. The bottom end of the fixing rod 4 is fixedly connected to the first fertilizer blocking plate 501. A semi-circular soil pressing cover 204 is fixedly connected to the bottom end of the first lower cylinder 202 and the second lower cylinder 203.

[0039] The top of the upper cylinder 201 is connected to a fertilizer storage component 3 for storing and replenishing fertilizer via a hose. The fertilizer storage component 3 includes an upper outer shell 301 and a lower outer shell 302. The upper outer shell 301 and the lower outer shell 302 are detachably connected, and a connecting groove 303 is provided at the connection between the upper outer shell 301 and the lower outer shell 302.

[0040] The specific implementation process is as follows: The shape of the connecting groove 303 and the fixed seat 1 of the present invention can be adjusted according to the transplanting mechanical arm of different rice transplanters. After selecting the specifications of the connecting groove 303 and the fixed seat 1 according to the shape of the fixed arm and the seedling claw of the transplanting mechanical arm, the granular fertilizer is put into the lower outer shell 302, and then the upper outer shell 301 and the lower outer shell 302 are installed on the fixed arm. Then the fixed seat 1 is installed on the seedling claw. The other end of the fixed seat 1 is clamped to the upper cylinder 201 of the side deep fertilizer cylinder 2. Then the lower outer shell 302 and the top surface of the upper cylinder 201 are connected through a hose to complete the preparatory work before transplanting.

[0041] As the rice transplanter starts, the side-deep fertilizer cylinder 2 moves synchronously with the movement of the seedling claw. After the seedling claw picks up the seedling, the hose changes from horizontal to vertical. The granular fertilizer is transported from the hose to the upper cylinder 201 by gravity. When the seedling claw enters the field for transplanting, the first lower cylinder 202 and the second lower cylinder 203 also enter the field simultaneously. The first lower cylinder 202 and the second lower cylinder 203 are subjected to the upward centrifugal force generated by the rapid downward movement of the mechanical arm and the upward supporting force generated by the side-deep fertilizer cylinder 2 contacting the paddy field soil. Since the second slider 10 and the third slider 12 are located at the initial positions at the top of the second slide groove 11 and the third slide groove 13 respectively, the entire lower cylinder will not slide. As the seedling claw goes deeper, the first lower cylinder 202 and the second lower cylinder 203 will also be pressed into the paddy field soil to form a cylindrical pit, which constructs a fertilization channel for the granular fertilizer.

[0042] When the seedling claw completes the transplanting and lifts up, the first lower cylinder 202 and the second lower cylinder 203 will be subjected to a downward centrifugal force generated by the rapid upward lifting of the robotic arm and a downward frictional force generated by the inverted groove 205 on the side-deep fertilizer cylinder 2 contacting the soil. At this time, the second slider 10 and the third slider 12 will slide downward along the second slide groove 11 and the third slide groove 13 respectively, thereby causing the first lower cylinder 202 and the second lower cylinder 203 to rotate downward. The first lower cylinder 202 and the second lower cylinder 203 will rotate counterclockwise and clockwise respectively. At this time, the first slider 8 will slide along the first slide groove 9 to assist the rotation of the two cylinders. As the rotation continues... The overlapping of several soil-pressing covers 204 reduces the coverage area and creates a leak on the bottom surface. At the same time, the first fertilizer-blocking plate 501, which is fixedly connected to the top of the first lower cylinder 202, will also rotate downward. Since the first fertilizer-blocking plate 501 is fixedly connected to the fixed rod 4 at its center, it will tilt. Meanwhile, the second fertilizer-blocking plate 502, which is fixedly connected to the top of the second lower cylinder 203, will rotate downward normally. As a result, the first fertilizer-blocking plate 501 and the second fertilizer-blocking plate 502 lose their fertilizer-blocking function, and the granular fertilizer accumulated on top will fall through the formed opening and leak out from the leak on the bottom surface, falling to the bottom of the fertilizer application channel constructed in the previous stage, thus completing the side-deep fertilization of the synchronous rice transplanting.

[0043] Example 2

[0044] The difference from the above embodiment is that a number of springs 6 are fixedly connected to the inner top wall of the upper cylinder 201. The bottom of some springs 6 is fixedly connected to the top surface of the first fertilizer baffle 501, and the bottom of other springs 6 is fixedly connected to the top surface of the second fertilizer baffle 502. The springs 6 are used to restore the first fertilizer baffle 501 and the second fertilizer baffle 502 to the closed state.

[0045] The specific implementation process is as follows: During the side-deep fertilization process, the downward rotation of the first fertilizer plate 501 and the second fertilizer plate 502 will stretch the spring 6 to store energy. When the side-deep fertilization cylinder 2 completes the side-deep fertilization and is lifted out of the paddy field with the seedling claw, the friction generated by the inverted groove 205 on the outer wall of the first lower cylinder 202 and the second lower cylinder in contact with the soil is removed. Several springs 6 will generate a pulling force on the first fertilizer plate 501 and the second fertilizer plate 502, causing the second slider 10 and the third slider 12 to slide back to the top through the reverse groove, so that the first fertilizer plate 501 and the second fertilizer plate 502 return to the closed state. The first lower cylinder 202 and the second lower cylinder 203 will also rise and close the bottom opening, thus achieving the purpose of fertilizing in the paddy field after the seedlings are transplanted and lifted out, and ending the fertilization after lifting out.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A synchronous device for side-deep fertilization during rice transplanting, characterized in that: The fixed seat for suspending the synchronization device is detachably connected with the side deep fertilization cylinder; The side deep fertilization cylinder comprises an upper cylinder, a first lower cylinder piece, a second lower cylinder piece, a first sliding assembly, a second sliding assembly and a third sliding assembly, the first lower cylinder piece and the second lower cylinder piece are slidably connected through the first sliding assembly, the first lower cylinder piece and the second lower cylinder piece are slidably connected with the inner wall bottom of the upper cylinder through the second sliding assembly and the third sliding assembly respectively, a fixed rod is fixedly connected at the center of the inner top wall of the upper cylinder, a fertilizer blocking assembly is arranged at the bottom of the fixed rod, semicircular earth-pressing covers are fixedly connected at the bottom ends of the first lower cylinder piece and the second lower cylinder piece, and a fertilizer storage assembly for storing and supplementing fertilizers is connected to the upper cylinder through a hose; The upper parts of the first lower cylinder piece and the second lower cylinder piece are 3 / 5 cylinder pieces and semicircular cylinder pieces respectively, the cylinder diameter and the cylinder height of the first lower cylinder piece are smaller than those of the second lower cylinder piece, and the first lower cylinder piece is embedded in the second lower cylinder piece to form a whole cylinder, and the lower parts of the first lower cylinder piece and the second lower cylinder piece are circular truncated cones with large top circle areas and small bottom circle areas; The second sliding assembly comprises a second sliding block and a second sliding groove, the second sliding block is fixedly connected to the top of the outer side wall of the first lower cylinder piece at the joint with the upper cylinder, the third sliding assembly comprises a third sliding block and a third sliding groove, the third sliding block is fixedly connected to the top of the outer side wall of the second lower cylinder piece at the joint with the upper cylinder, the second sliding groove and the third sliding groove are embedded in the inner wall of the upper cylinder at the two sides respectively, and the second sliding groove and the third sliding groove are two sliding grooves which slide from top to bottom but in opposite directions; A plurality of inverted notches are formed in the outer side walls of the first lower cylinder piece and the second lower cylinder piece.

2. The device according to claim 1, wherein the device is characterized by: The first sliding assembly comprises a first sliding block and a first sliding groove, the first sliding block is fixedly connected to the overlapping part of the outer side wall of the first lower cylinder piece and the second lower cylinder piece, and the first sliding groove is located at the inner side wall of the second lower cylinder piece corresponding to the first sliding block.

3. The device according to claim 2, wherein the device is characterized by: The fertilizer storage assembly comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, and a connecting groove is formed at the joint of the upper shell and the lower shell.

4. The device according to claim 3, wherein the device is characterized by: The fertilizer blocking assembly comprises a first fertilizer blocking plate and a second fertilizer blocking plate, the first fertilizer blocking plate and the second fertilizer blocking plate are fixedly connected to the top ends of the first lower cylinder piece and the second lower cylinder piece respectively, the first fertilizer blocking plate and the second fertilizer blocking plate are semicircular plates, and the bottom end of the fixed rod is fixedly connected to the center of the first fertilizer blocking plate.

5. The device according to claim 4, wherein the device is characterized by: The first fertilizer blocking plate is a plastic plate with elasticity.

6. The device according to claim 5, wherein the device is characterized by: A plurality of springs are fixedly connected to the inner top wall of the upper cylinder, the bottom parts of some springs are fixedly connected to the top surface of the first fertilizer blocking plate, and the bottom parts of the other springs are fixedly connected to the top surface of the second fertilizer blocking plate.

7. The device according to claim 6, wherein the device is characterized by: A sealing strip is arranged at the overlapping part of the first lower cylinder piece and the second lower cylinder piece, and the sealing strip is located at the outer side wall of the first lower cylinder piece.

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