Fertilizer applicator for pasture roots

Abstract

The invention belongs to the technical field of pasture root fertilizing devices, and relates to a pasture root fertilizing device which comprises a backpack type material box, a discharging pipeline, a material distributing barrel, a fertilizing pipeline, a shaft rod, a U-shaped handle and an annular handle. Two material distribution cavities which are distributed up and down are formed in the material distribution barrel, and the side walls of the top and the bottom of each material distribution cavity are each provided with a material inlet and a material outlet and provided with a connector; four valve plates used for blocking the four feeding and discharging ports respectively are arranged on the inner side wall of the material distributing barrel, and each valve plate is fixed to the shaft rod through a first connecting piece; the outer side wall of the upper portion of the shaft rod is provided with a limiting plate and sleeved with an upper spring. The fertilizer applicator can be used for manual fertilization, an outlet in the bottom end of the fertilization pipeline can be drawn close to the root of pasture by holding the U-shaped handle with a hand, the shaft rod is controlled to move up and down to drive each valve plate to be opened and closed, two material distribution cavities are used for alternately fertilizing, arms do not need to be raised repeatedly in the fertilization process, arm fatigue can be relieved, and fertilization can be performed while walking; the time for grabbing the fertilizer by hands is saved, and the fertilization efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of forage grass root fertilizer applicators and relates to a forage grass root fertilizer applicator. Background Art

[0002] Forage fertilization is an important measure to ensure healthy forage growth and increase yield. There are two main methods of forage fertilization: mechanized fertilization and manual fertilization. For planting sites with flat terrain, such as plains, the planting scale is usually large, and mechanized fertilization is more efficient. However, for planting sites with uneven terrain, such as plateaus, hills, and mountains, the planting scale is usually small, and mechanized fertilization is difficult to carry out. Manual fertilization is generally used. When manually fertilizing, the fertilizer is placed in a basin or bucket. One hand holds the basin (or bucket), and the other hand grabs a handful of fertilizer from the basin (or bucket) and sprinkles it on the roots of the forage. It is often necessary to repeatedly bend over and arch the back to sprinkle the fertilizer.

[0003] The above-mentioned method of manual fertilization of pasture has the following defects: carrying a basin or a bucket can easily cause arm soreness, repeatedly grabbing and spreading fertilizer can also easily cause arm soreness, grabbing fertilizer by hand can cause the fertilizer to corrode the skin of the hands, and the amount of fertilizer grabbed each time is different, resulting in uneven fertilization, and the efficiency of manual fertilization is low. Summary of the Invention

[0004] The purpose of the present invention is to provide a grass root fertilizer applicator, which is a manual backpack type and uses a pipeline to transport fertilizer to solve the technical problems raised in the above background technology.

[0005] The present invention is achieved through the following technical solutions:

[0006] A forage grass root fertilizer applicator comprises a backpack material box, a feeding pipe, a material distribution cylinder and a fertilizer pipe;

[0007] Backpack boxes are used to hold fertilizer. Fertilizer spreaders can carry them on their backs, distributing the weight of the fertilizer across their backs and shoulders. This helps reduce fatigue compared to carrying basins or buckets by hand.

[0008] The distributing cylinder is a hollow cylindrical structure sealed at both ends, and two distributing cavities distributed up and down are formed inside the distributing cylinder. The top side wall and the bottom side wall of each distributing cavity are provided with an inlet and outlet, and the outer wall of the inlet and outlet is provided with a joint. The joint of the top side wall of each distributing cavity is connected to the inner bottom of the backpack material box through a feeding pipe, so that the fertilizer contained in the backpack material box can slide into the distributing cavity through the feeding pipe, and the joint of the bottom side wall of each distributing cavity is connected to the fertilizer pipe, so that the fertilizer in the distributing cavity can slide into the fertilizer pipe to fertilize the roots of the forage grass;

[0009] The inner side wall of the distributing barrel is provided with four valve plates for blocking the four inlet and outlet ports respectively. A shaft rod is installed inside the distributing barrel. Each valve plate is fixed to the shaft rod by providing a first connecting piece. By axially moving the shaft rod, each valve plate can be driven to move in the distributing barrel to control the opening and closing of each inlet and outlet port so that the two distributing chambers alternately feed and discharge material, wherein the inlet and outlet ports on the top side walls of the two distributing chambers are alternately opened and closed, the inlet and outlet ports on the bottom side walls of the two distributing chambers are alternately opened and closed, and the inlet and outlet ports on the top side wall and the bottom side wall of each distributing chamber are alternately opened and closed;

[0010] The top of the material distributing barrel is provided with a U-shaped handle, the inner side of the U-shaped handle is provided with a ring handle, the top end of the shaft rod passes through the material distributing barrel and is fixedly connected to the ring handle, the upper outer wall of the shaft rod is provided with a limit plate located in the material distributing barrel, and the upper part of the shaft rod is covered with an upper spring, and the two ends of the upper spring respectively abut against the top of the material distributing barrel and the limit plate. The fertilizer worker holds the U-shaped handle with the tiger's mouth of one hand and hooks the ring handle with his fingers. The ring handle is pulled by his fingers to make the shaft rod move upward. After releasing his fingers, the shaft rod is driven downward under the action of the rebound force of the upper spring, and the ring handle can be pushed by his fingers to assist the shaft rod to move downward. By controlling the up and down movement of the shaft rod, each valve plate is driven to open and close, so that the two material distributing chambers are alternately fed and discharged. By holding the U-shaped handle by hand, the outlet at the bottom end of the fertilizer pipe can be brought close to the root of the forage grass. There is no need to repeatedly raise the arm during fertilization, which can reduce arm fatigue. The fertilizer worker fertilizes while walking, which saves time in grabbing fertilizer by hand and can improve fertilization efficiency.

[0011] Further definition, the backpack material box includes a box body, the top of the box body is provided with a feeding port, and is equipped with a detachable top cover, the inner bottom of the box body is provided with a funnel-shaped partition, and the bottom of the funnel-shaped partition is provided with a discharge port. The above structure can facilitate the fertilizer in the box body to slide down to the discharge port, and a mounting hole is provided at the bottom of the box body. One end of the discharge pipe is inserted into the mounting hole and is detachably connected to the discharge port at the bottom of the funnel-shaped partition. The opening of the mounting hole can facilitate the disassembly and assembly of the discharge pipe; the side wall of the box body is provided with two straps for the fertilizing worker to carry the backpack material box.

[0012] Further definition, the discharge pipe is composed of a discharge Y-tube and a plastic hose, two of the interfaces of the discharge Y-tube are detachably connected to the joints on the top side walls of the two distribution chambers, and the interface at the other end is connected to one end of the plastic hose, and the other end of the plastic hose is connected to the inner bottom of the backpack material box; specifically, the discharge Y-tube is a hard plastic tube, which can prevent it from bending and hindering the fertilizer from entering the distribution chamber, and the plastic hose is a PVC corrugated hose, which can prevent folding and deformation and has flexibility to adapt to the fertilizer worker's control of the distance of the distribution barrel.

[0013] Further definition, the fertilization pipe includes a fertilization Y-tube and a fertilization hard tube, two of the interfaces of the fertilization Y-tube are detachably connected to the joints on the bottom side walls of the two distribution chambers, and the interface at the other end is connected to one end of the fertilization hard tube; specifically, the fertilization Y-tube is a hard plastic tube, which can prevent it from bending and hindering the fertilizer from sliding out of the distribution chamber. The fertilization hard tube is a hard plastic tube. The fertilization worker can hold the U-shaped handle to extend the lower end of the fertilization hard tube to the root of the grass to align the fertilizer at the root of the grass. Fertilization can be controlled with one hand, and both hands can be used to control fertilization alternately.

[0014] Further definition, the fertilization pipe also includes a universal bamboo tube, which is connected between the fertilization Y tube and the fertilization hard tube. The bending of the universal bamboo tube can be manually adjusted to adjust the inclination of the fertilization hard tube. The height position of the lower end of the fertilization hard tube can be adjusted according to the height of the fertilizer so that the lower end of the fertilization hard tube can be close to the roots of the grass for fertilization.

[0015] Further definition, the lower end of the fertilizing hard pipe is a reducing pipe, and the diameter of the lower end outlet is smaller than the diameter of the top end of the fertilizing hard pipe, which can reduce the sliding speed of the fertilizer in the fertilizing hard pipe, which is beneficial for the fertilizing workers to fertilize while moving and adjust the fertilizer spreading position near the roots of the same grass nest.

[0016] According to further definition, four inclined partitions are arranged at intervals along the axial direction inside the distribution barrel, an upper distribution chamber is formed between the two inclined partitions on the upper side, and a lower distribution chamber is formed between the two inclined partitions on the lower side. The right side wall of the inclined partition at the top of the upper distribution chamber is provided with a clearance groove for the valve plate to slide, and the left side wall of the inclined partition at the bottom of the upper distribution chamber is provided with a clearance groove for the valve plate to slide, and each inclined partition is provided with a through hole for the shaft rod to pass through; the inclined partition arranged at an angle at the bottom of the distribution chamber can facilitate the fertilizer in the distribution chamber to slide out. In addition, the inclined partition at the top of the distribution chamber can also be a horizontal partition.

[0017] Further definition, the distribution barrel is composed of an upper barrel cover, an upper annular plate, an upper barrel, a middle annular plate, a lower barrel, a lower annular plate and a lower barrel cover which are distributed in sequence from top to bottom, and the upper and lower adjacent two of the above-mentioned components of the distribution barrel are detachably connected by bolts, so that the distribution barrel is an assembled structure, which is easy to disassemble and assemble, and can be disassembled for cleaning; the inclined partition at the top of the upper distribution chamber is fixedly connected to the upper annular plate by setting a second connecting piece, so that it can be disassembled and assembled as a whole with the upper annular plate, the inclined partition at the bottom of the upper distribution chamber and the inclined partition at the top of the lower distribution chamber are respectively located on the upper and lower sides of the middle annular plate and are fixedly connected to the middle annular plate by setting a second connecting piece, so that it can be disassembled and assembled as a whole with the middle annular plate, and the inclined partition at the bottom of the lower distribution chamber is fixedly connected to the lower annular plate by setting a second connecting piece, so that it can be disassembled and assembled as a whole with the lower annular plate.

[0018] Further definition, a connecting ring is provided between the first connecting member and the shaft rod, one end of the first connecting member is welded to the connecting ring, the connecting ring is sleeved on the shaft rod and the connecting ring and the shaft rod are detachably connected by bolts, which can be easily disassembled and assembled.

[0019] Further definition, the bottom end of the shaft is threadedly connected to a limit plate located in the distribution barrel, and the lower part of the shaft is covered with a lower spring, and the two ends of the lower spring are respectively in contact with the inclined partition at the bottom of the lower distribution chamber and the limit plate at the bottom end of the shaft; in the initial state, the lower spring is slightly compressed. When the fertilizer worker hooks the annular handle with his fingers and pulls the shaft upward, the upper spring and the lower spring are further compressed. After releasing the fingers, the shaft can be driven downward by the rebound force of the upper and lower springs. The shaft is driven to reset by the two springs at the upper and lower ends of the shaft, and the rebound force is greater, which can make the downward reset of the shaft more stable and reliable.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The fertilizer spreader can be used for manual fertilization. The fertilizer spreader can carry the backpack material box on his back. The carrying method can distribute the weight of the fertilizer on the back and shoulders, which can help reduce fatigue compared to holding a basin or a bucket with hands. When using it to spread fertilizer, only the tiger's mouth of one hand is needed to hold the U-shaped handle and the fingers are hooked on the ring handle. In the initial state, the upper spring is slightly compressed, the inlet and outlet of the bottom side wall of the lower material distribution chamber is blocked by the valve plate, and the inlet and outlet of the top side wall is opened. The lower material distribution chamber is filled with fertilizer. The ring handle is pulled by the fingers to make the ring handle close to the U-shaped handle, thereby driving the shaft to rise, and the upper spring is further compressed, so that each valve plate moves up, so that the inlet and outlet of the bottom side wall of the lower material distribution chamber is opened, and the inlet and outlet of the top side wall is blocked by the valve plate. The fertilizer slides into the fertilization pipe to fertilize the roots of the grass. At the same time, the inlet and outlet ports on the top side wall of the upper distribution chamber are opened, and the inlet and outlet ports on the bottom side wall are blocked by the valve plate. The fertilizer in the backpack material box enters the upper distribution chamber to be used. After the fertilizer in the lower distribution chamber is discharged, release your fingers and drive the shaft rod downward under the action of the rebound force of the upper spring. You can use your fingers to push the annular handle to assist the shaft rod to move downward, so that the two distribution chambers feed and discharge alternately for alternating fertilization. The amount of fertilizer held in the two distribution chambers is not much different, so the amount of fertilizer applied is not much different. Holding the U-shaped handle by hand can bring the bottom outlet of the fertilization pipe close to the roots of the grass. There is no need to repeatedly raise your arms during fertilization, which can reduce arm fatigue. Fertilizer workers fertilize while walking, saving time in grabbing fertilizer by hand and improving fertilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0023] Figure 1 Schematic diagram of the cross-sectional structure of the fertilizer applicator of the present invention;

[0024] Figure 2 Schematic diagram of the cross-sectional structure of the material distribution barrel in the fertilizer applicator of the present invention;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure after switching the material distribution cavity;

[0026] Figure 4 Schematic diagram of the three-dimensional structure of the material distribution cylinder in the fertilizer applicator of the present invention;

[0027] Figure 5 The diagram is a schematic diagram of the explosion structure of the material distribution barrel in the fertilizer spreader of the present invention.

[0028] The names of the components in the figure are: 1. Backpack material box; 1.1. Box body; 1.2. Funnel-shaped partition; 1.3. Mounting hole; 1.4. Shoulder strap; 2. Discharge pipe; 2.1. Discharge Y-tube; 3. Distributing barrel; 3.1. Upper barrel cover; 3.2. Upper annular plate; 3.3. Upper barrel body; 3.4. Middle annular plate; 3.5. Lower barrel body; 3.6. Lower annular plate; 3.7. Lower barrel cover; 4. Fertilization pipe; 4.1. Fertilization Y-tube; 4.2. Universal bamboo tube; 4.3. Fertilization hard tube; 5. Distributing chamber; 6. Connector; 7. Inclined partition; 8. U-shaped handle; 9. Ring handle; 10. Shaft; 11. Upper spring; 12. Valve plate; 13. Limit plate; 14. Lower spring; 15. First connecting piece; 16. Connecting ring; 17. Second connecting piece. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0030] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", "left", "right", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] A forage grass root fertilizer applicator, such as Figure 1 and Figure 2 As shown, it is mainly composed of a backpack material box 1, a feeding pipe 2, a material distribution cylinder 3, a fertilizer pipe 4, a valve plate 12, a shaft rod 10, a U-shaped handle 8 and a ring handle 9.

[0032] In this embodiment, Figure 1 As shown, the backpack material box 1 includes a box body 1.1, a funnel-shaped partition 1.2 is provided at the inner bottom of the box body 1.1, and a discharge port is provided at the bottom of the funnel-shaped partition 1.2. The above structure can facilitate the fertilizer in the box body 1.1 to slide down to the discharge port, and a mounting hole 1.3 is provided at the bottom of the box body 1.1. One end of the discharge pipe 2 is inserted into the mounting hole 1.3 and is detachably connected to the discharge port at the bottom of the funnel-shaped partition 1.2. The opening of the mounting hole 1.3 can facilitate the disassembly and assembly of the discharge pipe 2;

[0033] In addition, the top of the box body 1.1 is provided with a feeding port and a removable top cover, which can be opened to facilitate the addition of fertilizer into the box body 1.1. Two shoulder straps 1.4 are provided on the side walls of the box body 1.1 for a fertilizer worker to carry the backpack box 1. The main structure of the backpack box 1 is made of plastic, making it lightweight. The structure of the box body 1.1, the funnel-shaped partition 1.2, and the shoulder straps 1.4 of the backpack box 1 are well-known technologies and are disclosed in patents such as CN204090525U and CN110999609A.

[0034] The backpack material box 1 is used to hold fertilizers. Fertilizer workers can carry the backpack material box 1 on their backs. Carrying the fertilizer on their backs can distribute the weight of the fertilizer on their backs and shoulders, which can help reduce fatigue compared to carrying a basin or bucket in their hands.

[0035] In this embodiment, Figure 2 As shown, the distributing barrel 3 is a hollow cylindrical structure sealed at both ends, and four inclined partitions 7 are arranged inside it along its axial intervals. An upper distributing chamber 5 is formed between the two inclined partitions 7 on the upper side, and a lower distributing chamber 5 is formed between the two inclined partitions 7 on the lower side. Two distributing chambers 5 distributed up and down are formed inside the distributing barrel 3, and the top side wall and the bottom side wall of each distributing chamber 5 are provided with inlet and outlet ports, and the outer side wall of the inlet and outlet ports is provided with a joint 6. The joint 6 on the top side wall of each distributing chamber 5 is connected to the inner bottom of the backpack material box 1 through the discharge pipe 2, so that the fertilizer contained in the backpack material box 1 can slide into the distributing chamber 5 through the discharge pipe 2, and the joint 6 on the bottom side wall of each distributing chamber 5 is connected to the fertilizer pipe 4, so that the fertilizer in the distributing chamber 5 can slide into the fertilizer pipe 4 to fertilize the roots of the forage grass;

[0036] like Figure 2As shown, the inner side wall of the distributing barrel 3 is provided with four valve plates 12 for blocking the four inlet and outlet ports respectively, and the interior of the distributing barrel 3 is penetrated by a shaft 10, and each valve plate 12 is fixed on the shaft 10 by providing a first connecting piece 15. By axially moving the shaft 10, each valve plate 12 can be driven to move in the distributing barrel 3 to control the opening and closing of each inlet and outlet port so that the two distributing chambers 5 are alternately fed and discharged, wherein the inlet and outlet ports on the top side walls of the two distributing chambers 5 are alternately opened and closed, and the inlet and outlet ports on the bottom side walls of the two distributing chambers 5 are alternately opened and closed, and the inlet and outlet ports on the top side walls and the bottom side walls of each distributing chamber 5 are alternately opened and closed; the first connecting piece 15 is a connecting plate or a connecting rod;

[0037] For example, Figure 2 As shown, when the inlet and outlet ports on the top side wall of the upper distribution chamber 5 are blocked by the valve plate 12 and the inlet and outlet ports on the bottom side wall are opened, the fertilizer in the upper distribution chamber 5 slides into the fertilizer pipe 4 to fertilize the roots of the forage grass. At this time, the inlet and outlet ports on the top side wall of the lower distribution chamber 5 are opened and the inlet and outlet ports on the bottom side wall are blocked by the valve plate 12. The fertilizer in the backpack material box 1 slides into the lower distribution chamber 5 through the discharge pipe 2 until the lower distribution chamber 5 is filled with fertilizer.

[0038] like Figure 2 As shown, the right side wall of the inclined partition 7 at the top of the upper distributing chamber 5 is provided with a makeshift groove for the valve plate 12 to slide, and the left side wall of the inclined partition 7 at the bottom of the upper distributing chamber 5 is provided with a makeshift groove for the valve plate 12 to slide, and each inclined partition 7 is provided with a through hole for the shaft rod 10 to pass through; the inclined partition 7 tilted at the bottom of the distributing chamber 5 can facilitate the fertilizer in the distributing chamber 5 to slide out. In addition, the inclined partition 7 at the top of the distributing chamber 5 can also be a horizontal partition.

[0039] In this embodiment, Figure 1 and Figure 2 As shown, a U-shaped handle 8 is provided on the top of the distributing barrel 3, and an annular handle 9 is provided on the inner side of the U-shaped handle 8. The top end of the shaft rod 10 passes through the distributing barrel 3 and is threadedly connected to the annular handle 9. A limit plate 13 located inside the distributing barrel 3 is provided on the upper outer wall of the shaft rod 10. An upper spring 11 is sleeved on the upper part of the shaft rod 10, and the two ends of the upper spring 11 are respectively in contact with the top of the distributing barrel 3 and the limit plate 13;

[0040] like Figure 2 As shown, the bottom end of the shaft rod 10 is threadedly connected to a limit plate 13 located in the distribution barrel 3, and the lower part of the shaft rod 10 is fitted with a lower spring 14, and the two ends of the lower spring 14 are respectively in contact with the inclined partition 7 at the bottom of the lower distribution chamber 5 and the limit plate 13 at the bottom end of the shaft rod 10.

[0041] In this embodiment, Figures 2 to 5As shown, the distributing barrel 3 is composed of an upper barrel cover 3.1, an upper annular plate 3.2, an upper barrel body 3.3, a middle annular plate 3.4, a lower barrel body 3.5, a lower annular plate 3.6 and a lower barrel cover 3.7, which are arranged in sequence from top to bottom. The bottom outer wall of the upper barrel cover 3.1, the outer wall of the upper annular plate 3.2, the top outer wall and the bottom outer wall of the upper barrel body 3.3, the outer wall of the middle annular plate 3.4, the top outer wall and the bottom outer wall of the lower barrel body 3.5, the lower annular plate 3.6 and the lower barrel cover 3.7 are arranged in sequence. The outer side wall of 6 and the outer side wall of the top end of the lower cylinder cover 3.7 are welded or integrally formed with two ear plates symmetrical along the central axis, each ear plate is provided with a socket for inserting a bolt, and the upper cylinder cover 3.1, the upper annular plate 3.2, the upper cylinder 3.3, the middle annular plate 3.4, the lower cylinder 3.5, the lower annular plate 3.6 and the lower cylinder cover 3.7 are detachably connected by bolts installed on adjacent ear plates, so that the distributing cylinder 3 is an assembled structure that can be easily disassembled and assembled and can be disassembled for cleaning;

[0042] like Figure 2 and Figure 5 As shown, the inclined partition plate 7 at the top of the upper material distribution chamber 5 is fixedly connected to the upper annular plate 3.2 by providing a second connecting piece 17, so that it can be disassembled and assembled as a whole with the upper annular plate 3.2. The inclined partition plate 7 at the bottom of the upper material distribution chamber 5 and the inclined partition plate 7 at the top of the lower material distribution chamber 5 are respectively located on the upper and lower sides of the middle annular plate 3.4 and are fixedly connected to the middle annular plate 3.4 by providing a second connecting piece 17, so that it can be disassembled and assembled as a whole with the middle annular plate 3.4. The inclined partition plate 7 at the bottom of the lower material distribution chamber 5 is fixedly connected to the lower annular plate 3.6 by providing a second connecting piece 17, so that it can be disassembled and assembled as a whole with the lower annular plate 3.6. The second connecting piece 17 is a connecting plate or a connecting rod.

[0043] like Figure 2 and Figure 5 As shown, a connecting ring 16 is provided between the first connecting member 15 and the shaft 10, one end of the first connecting member 15 is welded to the connecting ring 16, the connecting ring 16 is sleeved on the shaft 10 and the connecting ring 16 and the shaft 10 are detachably connected by bolts, which can be easily disassembled; the distributing barrel 3 and its internal structure can be disassembled and cleaned, which is convenient for disassembly and assembly;

[0044] Specifically, each component of the distributing barrel 3, the valve plate 12, the inclined partition 7, the first connecting member 15, the U-shaped handle 8 and the annular handle 9 are all made of plastic, making them light in weight.

[0045] In this embodiment, Figure 1As shown, the discharge pipe 2 is composed of a discharge Y-tube 2.1 and a plastic hose, two of the interfaces of the discharge Y-tube 2.1 are detachably connected to the joints 6 on the top side walls of the two distribution chambers 5, and the interface at the other end is connected to one end of the plastic hose, and the other end of the plastic hose is connected to the inner bottom of the backpack material box 1; specifically, the discharge Y-tube 2.1 is a hard plastic tube, which can prevent it from bending and hindering the fertilizer from entering the distribution chamber 5, and the plastic hose is a PVC corrugated hose, which can prevent folding and deformation and has flexibility to adapt to the fertilizer worker's control of the distance of the distribution barrel 3.

[0046] In this embodiment, Figure 1 、 Figure 4 and Figure 5 As shown, the fertilization pipe 4 is composed of a fertilization Y-tube 4.1, a universal bamboo tube 4.2 and a fertilization hard tube 4.3. Two interfaces of the fertilization Y-tube 4.1 are detachably connected to the joints 6 on the bottom side walls of the two material distribution chambers 5, respectively. The interface at the other end is adjacent to one end of the universal bamboo tube 4.2, and the other end of the universal bamboo tube 4.2 is connected to one end of the fertilization hard tube 4.3. The bending of the universal bamboo tube 4.2 can be manually adjusted to adjust the inclination of the fertilization hard tube 4.3. The height of the lower end of the fertilization hard tube 4.3 can be adjusted according to the height of the fertilizer so that the lower end of the fertilization hard tube 4.3 can be close to the roots of the grass for fertilization.

[0047] like Figure 1 As shown, the lower end of the fertilizing tube 4.3 is a reducer, and the diameter of the outlet at the lower end is smaller than the diameter of the top end of the fertilizing tube 4.3, which can reduce the speed at which the fertilizer in the fertilizing tube 4.3 slides out, making it easier for the fertilizing worker to fertilize while moving and adjust the fertilizer spreading position near the roots of the same grass nest.

[0048] Specifically, the fertilization Y-tube 4.1 is a hard plastic tube, which can prevent it from bending and hindering the fertilizer from sliding out of the distribution chamber 5. The universal bamboo tube 4.2 is made of nylon material, can be bent by external force and maintain its shape after the force is unloaded. The fertilization hard tube 4.3 is a hard plastic tube. The fertilization worker holds the U-shaped handle 8 and can extend the lower end of the fertilization hard tube 4.3 to the root of the grass to align the fertilization with the root of the grass. Fertilization can be controlled by one hand, and both hands can be used to control fertilization alternately.

[0049] The working principle of this embodiment is as follows:

[0050] The box 1.1 is filled with fertilizer, and the fertilizer worker carries the box 1.1 on his back with the strap 1.4, holding the U-shaped handle 8 with the base of one hand and hooking the ring handle 9 with his fingers;

[0051] In the initial state, if Figure 2As shown, the upper spring 11 and the lower spring 14 are slightly compressed, the inlet and outlet of the bottom side wall of the lower distribution chamber 5 is blocked by the valve plate 12, and the inlet and outlet of the top side wall is opened. The lower distribution chamber 5 is filled with fertilizer. When fertilizing, the fertilizer worker uses his fingers to pull the annular handle 9 to make the annular handle 9 close to the U-shaped handle 8, thereby driving the shaft 10 to rise, and the upper spring 11 and the lower spring 14 are further compressed. Each valve plate 12 moves up with the shaft 10, as shown in FIG. Figure 3 As shown, the inlet and outlet of the bottom side wall of the lower distribution chamber 5 is opened, and the inlet and outlet of the top side wall is blocked by the valve plate 12, and the fertilizer in the lower distribution chamber 5 slides into the fertilizer pipe 4 to fertilize the roots of the grass. At the same time, the inlet and outlet of the top side wall of the upper distribution chamber 5 is opened, and the inlet and outlet of the bottom side wall is blocked by the valve plate 12, and the fertilizer in the backpack material box 1 enters the upper distribution chamber 5 to be used. After the fertilizer in the lower distribution chamber 5 is discharged, release your fingers, and the shaft rod 10 can be driven downward under the action of the rebound force of the upper spring 11 and the lower spring 14, and you can use your fingers to push the annular handle 9 to assist the shaft rod 10 to move downward, thereby returning to the Figure 2 Status shown;

[0052] The shaft 10 is manually controlled to move up and down repeatedly to alternately feed and discharge the two sub-cavities 5 for fertilizing alternately. Based on the space occupied by the valve plate 12, the first connecting piece 15 and the connecting ring 16 in the lower sub-cavity 5, in order to make the capacity of the two sub-cavities 5 as close as possible, the inlet and outlet ports on the top side wall of the upper sub-cavity 5 and the inclined partition 7 on its top can be moved downward to reduce the size of the upper sub-cavity 5, so that the amount of fertilizer accommodated in the two sub-cavities is not much different, which is conducive to balanced fertilization.

[0053] The shaft 10 is driven to reset by two springs at the upper and lower ends of the shaft 10, and the rebound force is greater, which can make the downward reset of the shaft 10 more stable and reliable. By holding the U-shaped handle 8 by hand, the bottom outlet of the fertilization pipe 4 can be brought close to the root of the grass. During the fertilization process, there is no need to repeatedly raise the arm, which can reduce arm fatigue. The fertilizer worker can fertilize while walking, saving the time of grabbing fertilizer by hand and improving the fertilization efficiency.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A grass root fertilizer applicator, comprising a backpack-type material box (1), characterized in that: It also includes a feeding pipe (2), a material distribution cylinder (3) and a fertilizer pipe (4); The material distribution cylinder (3) is a hollow cylindrical structure with sealed ends, and two material distribution chambers (5) are formed inside the cylinder and are distributed in an upper and lower manner. The top side wall and the bottom side wall of each material distribution chamber (5) are provided with an inlet and outlet, and a joint (6) is provided on the outer wall of the inlet and outlet. The joint (6) on the top side wall of each material distribution chamber (5) is connected to the inner bottom of the backpack material box (1) through the discharge pipe (2), and the joint (6) on the bottom side wall of each material distribution chamber (5) is connected to the fertilizer pipe (4); The inner side wall of the material distribution barrel (3) is provided with four valve plates (12) for blocking the four inlet and outlet ports respectively. The interior of the material distribution barrel (3) is penetrated by a shaft (10). Each valve plate (12) is fixed on the shaft (10) by providing a first connecting piece (15). By axially moving the shaft (10), each valve plate (12) can be driven to move in the material distribution barrel (3) to control the opening and closing of each inlet and outlet port so that the two material distribution chambers (5) alternately feed and discharge material, wherein the inlet and outlet ports of the top side walls of the two material distribution chambers (5) are alternately opened and closed, the inlet and outlet ports of the bottom side walls of the two material distribution chambers (5) are alternately opened and closed, and the inlet and outlet ports of the top side wall and the bottom side wall of each material distribution chamber (5) are alternately opened and closed; The top of the material distributing barrel (3) is provided with a U-shaped handle (8), the inner side of the U-shaped handle (8) is provided with an annular handle (9), the top end of the shaft rod (10) passes through the material distributing barrel (3) and is fixedly connected to the annular handle (9), the upper outer wall of the shaft rod (10) is provided with a limit plate (13) located in the material distributing barrel (3), the upper part of the shaft rod (10) is provided with an upper spring (11), and the two ends of the upper spring (11) are respectively in contact with the top of the material distributing barrel (3) and the limit plate (13).

2. The grass root fertilizer applicator according to claim 1, characterized in that: The backpack material box (1) comprises a box body (1.1), a funnel-shaped partition (1.2) is provided at the inner bottom of the box body (1.1), a discharge port is provided at the bottom of the funnel-shaped partition (1.2), a mounting hole (1.3) is provided at the bottom of the box body (1.1), and one end of a discharge pipe (2) is inserted into the mounting hole (1.3) and is detachably connected to the discharge port at the bottom of the funnel-shaped partition (1.2).

3. The grass root fertilizer applicator according to claim 1, characterized in that: The discharge pipe (2) is composed of a discharge Y-tube (2.1) and a plastic hose. Two interfaces of the discharge Y-tube (2.1) are detachably connected to the joints (6) on the top side walls of the two material distribution chambers (5), respectively. The interface at the other end is connected to one end of the plastic hose, and the other end of the plastic hose is connected to the inner bottom of the backpack material box (1).

4. The grass root fertilizer applicator according to claim 1, characterized in that: The fertilization pipeline (4) comprises a fertilization Y-tube (4.1) and a fertilization hard tube (4.3). Two interfaces of the fertilization Y-tube (4.1) are detachably connected to joints (6) on the bottom side walls of the two material distribution chambers (5), respectively, and the interface at the other end is connected to one end of the fertilization hard tube (4.3).

5. The grass root fertilizer applicator according to claim 4, characterized in that: The fertilization pipeline (4) further comprises a universal bamboo tube (4.2), which is connected between the fertilization Y tube (4.1) and the fertilization hard tube (4.3).

6. The grass root fertilizer applicator according to claim 4, characterized in that: The lower end of the fertilizing hard pipe (4.3) is a reducer, and the diameter of the outlet at the lower end is smaller than the diameter of the top end of the fertilizing hard pipe (4.3).

7. The grass root fertilizer applicator according to claim 1, characterized in that: Four inclined partitions (7) are arranged at intervals along the axial direction inside the material distribution barrel (3); an upper material distribution chamber (5) is formed between the two inclined partitions (7) on the upper side, and a lower material distribution chamber (5) is formed between the two inclined partitions (7) on the lower side; a right side wall of the inclined partition (7) at the top of the upper material distribution chamber (5) is provided with a clearance groove for the sliding of the valve plate (12); and a left side wall of the inclined partition (7) at the bottom of the upper material distribution chamber (5) is provided with a clearance groove for the sliding of the valve plate (12).

8. The grass root fertilizer applicator according to claim 7, characterized in that: The material distributing barrel (3) is composed of an upper barrel cover (3.1), an upper annular plate (3.2), an upper barrel body (3.3), a middle annular plate (3.4), a lower barrel body (3.5), a lower annular plate (3.6) and a lower barrel cover (3.7) which are sequentially distributed from top to bottom, and two adjacent upper and lower components of the material distributing barrel (3) are detachably connected by bolts; the inclined baffle (7) at the top of the upper material distributing chamber (5) is fixedly connected to the upper annular plate (3.2) by arranging a second connecting piece (17); the inclined baffle (7) at the bottom of the upper material distributing chamber (5) and the inclined baffle (7) at the top of the lower material distributing chamber (5) are respectively located on the upper and lower sides of the middle annular plate (3.4) and are fixedly connected to the middle annular plate (3.4) by arranging a second connecting piece (17); and the inclined baffle (7) at the bottom of the lower material distributing chamber (5) is fixedly connected to the lower annular plate (3.6) by arranging a second connecting piece (17).

9. The grass root fertilizer applicator according to claim 8, characterized in that: A connecting ring (16) is provided between the first connecting member (15) and the shaft (10), one end of the first connecting member (15) is welded to the connecting ring (16), the connecting ring (16) is sleeved on the shaft (10), and the connecting ring (16) and the shaft (10) are detachably connected by bolts.

10. The grass root fertilizer applicator according to claim 8, characterized in that: The bottom end of the shaft (10) is threadedly connected to a limit plate (13) located in the material distribution barrel (3), and the lower part of the shaft (10) is sleeved with a lower spring (14), and the two ends of the lower spring (14) are respectively in contact with the inclined partition (7) at the bottom of the lower material distribution chamber (5) and the limit plate (13) at the bottom end of the shaft (10).

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