Fertilizer applicator for tobacco planting

Abstract

The present invention discloses a fertilizer applicator for tobacco planting, comprising a chassis, four sides of which are provided with walking wheels, one side of the chassis is provided with a vertical plate and a towing head is provided on the vertical plate, an opening is provided in the chassis and a vertical frame is provided in the opening, a downward insertion drive mechanism is provided in the vertical frame, a fertilizer applicator for spreading fertilizer into the soil is provided at the bottom of the downward insertion drive mechanism, a support cylinder is provided on the chassis, and a fertilizer conveying mechanism for conveying the fertilizer in the support cylinder to the fertilizer applicator is provided on the support cylinder. Under the reciprocating operation of the downward insertion drive mechanism, the fertilizer conveying mechanism continuously conveys granular fertilizer from the support cylinder to the fertilizer applicator, and then the granular fertilizer is brought into the soil by the fertilizer applicator, which can ensure that the fertilizer particles are effectively placed in the soil and ensure that the granular fertilizer can be better slowly released and dissolved in the soil under the action of rainwater and spraying water, thereby ensuring long-term fertility supply.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural equipment, and in particular relates to a fertilizer applicator for tobacco planting. Background Art

[0002] Before planting tobacco, it is usually necessary to adjust the soil pH and fertility. Since the soil for planting tobacco needs to be both loose and compact, during the fertilization process, fertilizer particles need to be placed in the soil as much as possible. After planting, the fertility of the fertilizer particles can be dissolved and slowly released in the soil, making it easier for the roots of the planted tobacco to absorb it for a long time.

[0003] Authorization announcement number: CN 216087615 U's patent discloses a precise positioning quantitative fertilizer applicator for tobacco planting, involving a storage box fixedly connected to the right end of the top of the support, and a second partition fixedly connected to the lower end of the storage box cavity. At the same time, four equidistantly distributed through-holes are opened at the right end of the inner surface of the second partition, and three first partitions are equidistantly distributed between the bottom of the second partition and the bottom of the storage box cavity, and four equidistantly distributed first electric telescopic rods are fixedly connected to the lower end of the left side of the storage box cavity. At the same time, the output end of the first electric telescopic rod is fixedly connected to a push plate with an "L"-shaped structure; the amount of fertilizer at the bottom of the storage box cavity can be adjusted by adjusting the contraction distance of the electric telescopic rod. When the first electric telescopic rod is extended and the second electric telescopic rod is contracted, the fertilizer at the bottom of the storage box cavity can be pushed out from the discharge port to achieve the purpose of quantitative fertilization. A third electric telescopic rod, an adjusting rod, a card plate and a discharge barrel are provided. When the third electric telescopic rod is extended and contracted, it will drive the angle of the adjusting rod, the card plate and the discharge barrel to change, so that the discharge barrel is located above the place to be fertilized.

[0004] The patent with authorization announcement number: CN 216722089 U discloses a fertilizer applicator for tobacco planting, which involves starting a drive motor, carrying a fertilizer container on the body through a shoulder strap, holding the fertilizer mechanism in the right hand, controlling the left and right handles, opening the left and right surrounding plates to the size of the well cellar hole, and then extending them toward the well cellar hole, wrapping the tobacco plant between the left and right surrounding plates, and surrounding the two fan-shaped plates with the lower edges facing the well cellar hole wall. The left hand rotates the wheel handle, and fertilizer and water are transported from the diversion pipe, left pipe, and right pipe to the two fan-shaped plates. The fertilizer and water are sprayed into the well cellar wall from the lower edges of the left and right surrounding plates to complete the fertilization.

[0005] It can be seen that there are currently two existing methods of fertilizing tobacco before planting. One is to directly spread granular fertilizer on the planting soil surface in a quantitative manner. Although it can be dissolved in the soil under the influence of rain or spray water, the speed is slow, and the fertilizer is easily washed into the soil of non-planting areas under water erosion; the other is to open wells in the planting fields in advance, and use water and fertilizer to pour into the inner wall of the wells so as to penetrate into the soil. However, this method of fertilization has a fast penetration of fertilizer elements by water, and the fertilizer is lost quickly. Therefore, it is necessary to improve the current fertilization equipment to meet the requirements of stuffing granular fertilizer under the soil during the fertilization process to ensure that the granular fertilizer can be better slowly released and dissolved in the soil under the action of rain and spray water to ensure long-term fertility supply. Summary of the Invention

[0006] The purpose of the present invention is to provide a fertilizer applicator for tobacco planting to solve the problems existing in the prior art.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A fertilizer applicator for tobacco planting, comprising a chassis, wherein walking wheels are provided on four sides of the chassis, a vertical plate is provided on one side of the chassis and a towing head is provided on the vertical plate, an opening is provided in the chassis and a vertical frame is provided in the opening, a downward insertion drive mechanism is provided in the vertical frame, a fertilizer applicator for spreading fertilizer into the soil is provided at the bottom of the downward insertion drive mechanism, a support cylinder is provided on the chassis, and a fertilizer conveying mechanism for conveying the fertilizer in the support cylinder to the fertilizer applicator is provided on the support cylinder.

[0008] Preferably, the downward insertion drive mechanism includes a cylinder arranged on the top of the vertical frame, the air inlet and outlet ends of the cylinder are respectively connected to solenoid valves, an air pump is provided on the chassis, and the air receiving end on one side of the solenoid valve is connected to the exhaust end of the air pump through an air pipe, and the power cord of the solenoid valve is connected to the electronic control end of the PLC controller.

[0009] The top of the slider is supported by a spring and the top of the slider is supported by a spring, and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the top of the slider is supported by a spring and the

[0010] Preferably, the fertilizer conveying mechanism includes a motor arranged on one side of the support cylinder, the rotor shaft of the motor penetrates into the support cylinder and is connected to a twisting spring, a first connecting pipe is provided on the other side of the bottom of the support cylinder and is connected to the support cylinder, a second connecting pipe is provided on one side of the movable frame and is connected to the movable frame, a hose is connected between the first connecting pipe and the second connecting pipe, and the twisting spring passes through the hose.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, under the reciprocating operation of the lower insertion drive mechanism, the fertilizer conveying mechanism continuously conveys the granular fertilizer from the support cylinder to the lower fertilizer device, and then brings the granular fertilizer into the soil through the fertilizer device, which can ensure that the fertilizer particles are effectively placed in the soil and ensure that under the action of rainwater and spraying water, the granular fertilizer can be better slowly released and dissolved in the soil to ensure long-term fertility supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view schematic diagram of the present invention;

[0014] Figure 2 for Figure 1 A partial cross-sectional diagram of

[0015] Figure 3 It is a schematic diagram of the enlarged structure of the fertilizer applicator of the present invention.

[0016] In the figure: 1 chassis, 2 walking wheels, 3 vertical plates, 4 towing heads, 5 vertical frames, 6 cylinders, 7 movable frames, 8 sliders, 9 accordion plates, 10 movable buckets, 11 fixed rods, 12 push rods, 13 pressing heads, 14 discharge pipes, 15 pressing plates, 16 supporting cylinders, 17 motors, 18 twisting springs, 19 hoses, 20 solenoid valves, 21 air pumps, and 101 openings. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] See Figure 1 、 Figure 2 and Figure 3A fertilizer spreader for tobacco planting includes a chassis 1, with walking wheels 2 installed on the four sides of the chassis 1. The arrangement of the walking wheels 2 enables the fertilizer spreader to effectively move in the tobacco field. A vertical plate 3 is fixed to the left side of the chassis 1 by bolts, and a towing head 4 is fixed to the left side of the vertical plate 3 by bolts. The towing head 4 is used to connect the fertilizer spreader to a tractor. An opening 101 is provided in the chassis 1, and a vertical frame 5 is welded in the opening 101. The vertical frame 5 is a U-shaped frame. A lower plug-in drive mechanism is provided in the vertical frame 5. The lower plug-in drive mechanism A fertilizer dispenser for spreading fertilizer into the soil is provided at the bottom of the dynamic mechanism. Under the action of the lower insertion driving mechanism, the fertilizer dispenser can move back and forth quickly in the two processes of inserting into the soil and pulling out of the soil. A support cylinder 16 is fixed with bolts on the right side of the chassis 1. A fertilizer conveying mechanism for conveying the fertilizer in the support cylinder 16 to the fertilizer dispenser is provided on the support cylinder 16. The fertilizer conveying mechanism can continuously convey the granular fertilizer in the support cylinder 16 to the fertilizer dispenser for the fertilizer dispenser to pour fertilizer granules into the soil.

[0019] See Figure 1 and Figure 2 The lower plug-in drive mechanism includes a cylinder 6 fixed by bolts to the top of the vertical frame 5. The inlet and outlet ends of the cylinder 6 are respectively connected to the solenoid valve 20 by pipes. The air pump 21 is fixed to the right side of the chassis 1 with screws. The solenoid valve 20 is a three-position three-way air valve. The left air connection ends of the two solenoid valves 20 are respectively connected to the exhaust end of the air pump 21 through air pipes. The power cord of the solenoid valve 20 is connected to the electronic control end of the PLC controller. The PLC controller is set to control the power on and off of each control end of the solenoid valve 20. When the air position of one solenoid valve 20 connected to the air pump 21 is connected, the air position connected to the cylinder 6 is connected and the non-connected air position is closed. The air position of the other solenoid valve 20 connected to the air pump 21 is closed, the air position connected to the cylinder 6 is connected and the non-connected air is connected. Two sets of action change times are set with reference to the actual dragging and traction speed.

[0020] See Figure 1 、 Figure 2 and Figure 3The fertilizer dispensing device includes a movable frame 7 connected to the lower end of the push rod of the cylinder 6. A slide groove is provided on the front and rear sides of the movable frame 7, and a slider 8 is slidingly provided in the slide groove. A connecting rod is fixed with screws in the movable frame 7, and the slider 8 is slidingly sleeved on the connecting rod. A spring is sleeved on the connecting rod, and the two ends of the spring are respectively supported on the inner top of the slide groove and the top of the slider 8. The spring is a compression-rebound type, and its elastic force is sufficient. When the pressing head 13 is pulled out of the soil, it drives the pressing head 13 to re-block the lower port of the discharge pipe 14, and the slider The top of the slide 8 and the inner top screw of the slide are fixed with an accordion plate 9, and the accordion plate 9 covers the spring and the connecting rod. The setting of the accordion plate 9 prevents the granular fertilizer from being poured into the spring and causing the spring compression process to be blocked. A movable bucket 10 is slidingly provided on the slider 8. The movable bucket 10 is bolted to the slider 8, so that the movable bucket 10 can stably move up and down in the movable frame 7. The inner top of the movable frame 7 is evenly welded with a fixed rod 11, and the lower center position of the fixed rod 11 is welded with a top rod 12. The bottom of the bucket 10 is evenly and integrally provided with a discharge pipe 14. The lower end of the push rod 12 passes through the discharge pipe 14 and is screwed with a press-in head 13. The press-in head 13 is a double-cone head. The bottom of the discharge pipe 14 is integrally provided with a pressure plate 15 for pressing on the ground. When the pressure plate 15 presses down the soil and the movable frame 7 continues to move downward, the press-in head 13 is inserted into the soil. The fertilizer particles in the movable bucket 10 move downward through the gap in the push rod 12 and the discharge pipe 14. Since the pressure plate 15 is pressed on the soil and the press-in head 13 is pressed, the fertilizer particles in the movable bucket 10 move downward through the gap in the push rod 12 and the discharge pipe 14. 3, the fertilizer particles are discharged into the hole rammed by the pressing head 13. Under the support of the spring, when the pressing head 13 does not re-press the lower end of the discharge pipe 14, the pressing plate 15 remains pressed into the soil. In this case, the upward movement of the pressing head 13 drives the granular fertilizer to float out of the hole, which is blocked. Under the squeezing effect of the side wall of the pressing head 13, part of the fertilizer particles are pressed against the inner wall of the hole, and the remaining part will slide down the side wall of the pressing head 13 into the hole after the pressing head 13 is separated from the hole.

[0021] See Figure 1 and Figure 2The fertilizer conveying mechanism includes a motor 17 fixed with bolts on the right side of the support cylinder 16. The rotor shaft of the motor 17 penetrates the support cylinder 16 and is flange-connected with a twisting spring 18. A first pipe is integrally provided on the left side of the bottom of the support cylinder 16 and the first pipe is connected to the support cylinder 16. A second pipe is integrally provided on the right side of the movable frame 7 and the second pipe is connected to the movable frame 7. A hose 19 is connected between the first pipe and the second pipe. The twisting spring 18 passes through the hose 19. The hose 19 is a rubber steel wire hose that can be twisted and sent. The spring 18 bends and bends, and can bend adaptively in conjunction with the up and down movement of the movable frame 7, and the lengths of the hose 19 and the twisting spring 18 also meet the bending allowance requirements. When the motor 17 is running, it drives the twisting spring 18 to run. When the twisting spring 18 is running, the fertilizer particles in the support cylinder 16 can be twisted and sent to the movable frame 7 through the hose 19, thereby continuously supplying fertilizer particles to the movable bucket 10. The PLC controller is powered by the battery box installed on the fertilizer spreader, while the motor 17 and the air pump 21 are powered by the generator on the tractor.

[0022] The working principle of this embodiment is as follows: when the fertilizer spreader is pulled by a tractor, the reciprocating telescopic movement of the push rod of the cylinder 6 is realized under the control of the solenoid valve 20 and the PLC controller. When the fertilizer conveying mechanism continuously conveys the fertilizer particles in the support cylinder 16 to the movable frame 7, the pressing plate 15 presses down the soil. When the movable frame 7 continues to move downward, the pressing head 13 is inserted into the soil. The fertilizer particles in the movable bucket 10 move downward through the gap between the push rod 12 and the discharge pipe 14. Since the pressing plate 15 is pressed on the soil and the conical structure of the pressing head 13 is formed, the fertilizer particles will be discharged into the hole rammed by the pressing head 13. Under the support of the spring, the pressing head When 13 has not re-tightened the lower end of the discharge pipe 14, the pressing plate 15 remains pressed in the soil. In this case, the upward movement of the pressing head 13 drives the granular fertilizer to float out of the hole, which is blocked. Under the squeezing action of the side wall of the pressing head 13, part of the fertilizer particles are pressed against the inner wall of the hole, and the remaining part will slide from the side wall of the pressing head 13 into the hole after the pressing head 13 is separated from the hole, until the pressing head 13 is re-tightened on the lower end of the discharge pipe 14, and the action is restarted according to this sequence. Therefore, it can ensure that the fertilizer particles are effectively placed in the soil, and ensure that under the action of rainwater and spraying water, the granular fertilizer can be better slowly released and dissolved in the soil to ensure long-term fertility supply.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A fertilizer applicator for tobacco planting, characterized by: The invention comprises a chassis (1), wherein four sides of the chassis (1) are provided with walking wheels (2), one side of the chassis (1) is provided with a vertical plate (3), and a towing head (4) is provided on the vertical plate (3), an opening (101) is provided in the chassis (1), and a vertical frame (5) is provided in the opening (101), a lower insertion drive mechanism is provided in the vertical frame (5), a fertilizer dispensing device for spreading fertilizer into the soil is provided at the bottom of the lower insertion drive mechanism, a support cylinder (16) is provided on the chassis (1), and a fertilizer conveying mechanism for conveying fertilizer in the support cylinder (16) to the fertilizer dispensing device is provided on the support cylinder (16); The fertilizer dispensing device comprises a movable frame (7) connected to the lower end of the top rod of the cylinder (6), a slide groove is provided on both sides of the movable frame (7), and a slider (8) is provided in the slide groove for sliding. A connecting rod is connected to the movable frame (7), and the slider (8) is sleeved on the connecting rod. A spring is sleeved on the connecting rod, and the two ends of the spring are supported on the inner top of the slide groove and the top of the slider (8) respectively. The top of the slider (8) and the inner top of the slide groove are connected to an accordion plate (9), and the accordion plate (9) covers the spring and the connecting rod. A movable bucket is provided on the slider (8). (10) and the movable bucket (10) is slidably arranged in the movable frame (7), the movable bucket (10) is connected to the slider (8), the inner top of the movable frame (7) is evenly connected with a fixed rod (11), the lower end of the fixed rod (11) is connected with a push rod (12), the bottom of the movable bucket (10) is evenly provided with a discharge pipe (14), the lower end of the push rod (12) passes through the discharge pipe (14) and is connected with a pressing head (13), and the bottom of the discharge pipe (14) is provided with a pressing plate (15) for pressing on the ground; The pressing head (13) is a double cone head. When the pressing plate (15) presses the soil, and the movable frame (7) continues to move downward, the pressing head (13) is inserted into the soil, and the fertilizer particles in the movable bucket (10) move downward through the gap between the top rod (12) and the discharge pipe (14). Since the pressing plate (15) is pressed on the soil and the pressing head (13) has a conical structure, the fertilizer particles will be discharged into the hole rammed by the pressing head (13), and when the spring Under the support, when the pressing head (13) does not re-tighten the lower end of the discharge pipe (14), the pressing plate (15) remains pressed in the soil. In this case, the pressing head (13) moves upward to drive the granular fertilizer to float out of the hole, which is blocked. Under the squeezing action of the side wall of the pressing head (13), part of the fertilizer granules are pressed against the inner wall of the hole, and the remaining part will slide from the side wall of the pressing head (13) into the hole after the pressing head (13) is separated from the hole. The fertilizer conveying mechanism comprises a motor (17) arranged on one side of the support cylinder (16); a rotor shaft of the motor (17) penetrates into the support cylinder (16) and is connected to a twisting spring (18); a first connecting pipe is provided on the other side of the bottom of the support cylinder (16) and is in communication with the support cylinder (16); a second connecting pipe is provided on one side of the movable frame (7) and is in communication with the movable frame (7); a hose (19) is connected between the first and second connecting pipes, and the twisting spring (18) penetrates into the hose (19).

2. A tobacco planting fertilizer applicator according to claim 1, characterized in that: The downward insertion drive mechanism comprises a cylinder (6) arranged on the top of the vertical frame (5), the air inlet and outlet ends of the cylinder (6) are respectively connected to a solenoid valve (20), an air pump (21) is provided on the chassis (1), one side air connection end of the solenoid valve (20) is connected to the exhaust end of the air pump (21) through an air pipe, and the power line of the solenoid valve (20) is connected to the electric control end of the PLC controller.

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