CN113892313B

CN113892313B - Automatic quick fertilization equipment

Info

Publication number: CN113892313B
Application number: CN202111179800.0A
Authority: CN
Inventors: 谢晓文
Original assignee: Wenzhou University
Current assignee: Wenzhou University
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-11-04
Anticipated expiration: 2041-10-11
Also published as: CN113892313A

Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to automatic rapid fertilization equipment which comprises a vehicle body, a soil turning unit, a fertilizer feeding unit, a power unit and a rack, wherein the vehicle body is provided with a soil turning unit; the soil turning unit comprises an intermediate shaft and a soil turning cutter, wherein a cavity is formed in the intermediate shaft; the intermediate shaft is rotatably connected with an annular sleeve, the annular sleeve is provided with a fertilizer conveying pipe, and the fertilizer conveying pipe is provided with a one-way discharge valve; the annular sleeve is provided with a first through hole communicated with the fertilizer inlet pipe, and the intermediate shaft is provided with a second through hole; the fertilizer inlet unit comprises a hopper, an inflating mechanism and a fertilizer inlet pipe, one end of the fertilizer inlet pipe, which is far away from the hopper, is connected with a sealing plate which is attached to the end part of the intermediate shaft, the sealing plate is provided with a third through hole which is communicated with the fertilizer inlet pipe, and the end part of the intermediate shaft is provided with a fourth through hole which can be communicated with the third through hole; when the first through hole is communicated with the second through hole, one end of the fertilizer inlet pipe is blocked by the middle shaft, and the fourth through hole is blocked by the sealing plate. The fertilization equipment of this scheme of use is favorable to fertilizer full play effect, and can effectively avoid the fruit tree to burn the root.

Description

Automatic quick fertilization equipment

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to automatic rapid fertilizing equipment.

Background

The growth and fruiting of fruit trees can not be separated from the fertilizer, and sufficient nutrients are an important guarantee for promoting the growth of the fruit trees and improving the quality of the fruit. The common way of applying fertilizer to fruit trees is ditching fertilizer application, which can improve the soil structure, increase the oxygen content in the soil and enable the fertilizer to enter the deep layer of the soil, thereby enabling the root system of the fruit trees to be pricked deeper and improving the drought resistance and wind resistance of the fruit trees. The existing ditching fertilization modes comprise manual ditching fertilization and mechanical ditching fertilization, and because the manual ditching fertilization is low in efficiency and high in cost, more and more orchards at present utilize mechanical equipment to ditch and fertilize. The process of ditching and fertilizing by using mechanical equipment is generally that a ditcher ditches in soil, a fertilizer applicator then sprays fertilizer into the ditches, and a soil coverer finally buries the soil into the ditches again. In the process of using the existing mechanical ditching and fertilizing, after the fertilizer applicator spills the fertilizer into the ditch, the fertilizer is mainly concentrated at the bottom of the ditch, the fertilizer and the soil can not be well mixed, the fertilizer efficiency is slow, the utilization rate of the fertilizer is reduced, and more serious, the fertilizer is concentrated and is easy to burn roots to cause loss.

Disclosure of Invention

The invention aims to provide automatic rapid fertilizing equipment to solve the problems that the existing mechanical equipment is used for fertilizing fruit trees, the fertilizer utilization rate is low, and the fruit trees are easy to burn roots.

In order to achieve the purpose, the scheme of the invention is as follows: an automatic rapid fertilizing device comprises a vehicle body, a soil turning unit, a fertilizer feeding unit, a power unit and a rack arranged on one side of the vehicle body, wherein a telescopic mechanism is connected between the rack and the vehicle body; the soil turning unit comprises an intermediate shaft which is rotationally connected to the rack and a plurality of soil turning cutters which are arranged on the intermediate shaft, and a cavity is formed in the intermediate shaft; the middle shaft is rotatably connected with an annular sleeve fixedly connected with the rack, the annular sleeve is provided with a fertilizer conveying pipe which vertically faces downwards, and the fertilizer conveying pipe is provided with a one-way discharge valve; a first through hole communicated with the fertilizer conveying pipe is formed in the annular sleeve, and a second through hole capable of being communicated with the first through hole is formed in the intermediate shaft; the fertilizer inlet unit comprises a hopper, an inflating mechanism for inflating the cavity and a fertilizer inlet pipe, one end of the fertilizer inlet pipe is communicated with the hopper, a sealing plate attached to the end part of the intermediate shaft is connected to one end, far away from the hopper, of the fertilizer inlet pipe, a third through hole communicated with the fertilizer inlet pipe is formed in the sealing plate, and a fourth through hole capable of being communicated with the third through hole is formed in the end part of the intermediate shaft; when the first through hole is communicated with the second through hole, one end of the fertilizer inlet pipe is blocked by the middle shaft, and the fourth through hole is blocked by the sealing plate; the power unit is arranged on the frame and used for driving the intermediate shaft to rotate.

The working principle of the scheme is as follows: when the fertilizer application operation is needed, the depth of the soil turning knife and the fertilizer conveying pipe extending into the soil is adjusted through the telescopic mechanism, so that the soil turning knife and the fertilizer conveying pipe are inserted into the soil. Fertilizer is poured into the hopper, the power unit and the inflating mechanism are started, and then the advancing direction of the vehicle body is controlled according to the place where the fertilizer is required to be applied. In the advancing process of the vehicle body, the power unit drives the intermediate shaft to rotate, and the soil turning cutter on the intermediate shaft turns the soil loose and stirs the soil. In the rotating process of the intermediate shaft, the third through hole is intermittently communicated with the fourth through hole, and fertilizer in the hopper can intermittently enter the cavity of the intermediate shaft through the fertilizer inlet pipe; meanwhile, the second port is also provided with the intermittent first port and the communication, and the fertilizer in the cavity sequentially enters the fertilizer conveying pipe through the second port and the first port. When the jackshaft rotated, aerify the mechanism and also be working, aerify the mechanism and let in the cavity with gas in, because during first opening and second opening intercommunication, the one end of advancing fertile pipe is blocked by the jackshaft, and the cavity forms inclosed space with sending fertile intraductal formation, cavity and the interior pressure increase of sending fertile pipe this moment, and one-way bleeder valve is opened, send the fertilizer in the fertile pipe to fall in soil. The soil turning knife mixes, stirs soil and the fertilizer that falls in soil for the distribution that fertilizer can be comparatively dispersed avoids fertilizer excessively to concentrate in soil.

The beneficial effect of this scheme lies in:

1. the fertilizer applying equipment can utilize the fertilizer delivering pipe to directly deliver the fertilizer into the soil with certain depth, does not need ditching or earthing, greatly simplifies the fertilizer applying step, and is an efficient and new fertilizer applying mode.

2. The equipment of this scheme of use fertilizies the operation, and during fertilizer was sent into the soil that has certain degree of depth, the sword that digs mixed soil and fertilizer, makes fertilizer distribute evenly relatively, and fertilizer ability full play utility has improved the utilization ratio of fertilizer, has effectively avoided moreover because the fertilizer concentrates and the fruit tree that leads to burns the root problem.

3. Very few direct equipment that will send fertile pipe to insert and fertilize in soil in the existing market generally all is that clearance earth earlier fertilizies again, and the reason lies in the disect insertion send fertile pipe, and earth very easily blocks up and send fertile pipe, leads to unable ejection of compact. In the scheme, the inflating mechanism and the one-way discharge valve are matched together, and the one-way discharge valve is kept closed under a general condition, so that abnormal scattering of fertilizer in the fertilizer delivery pipe is effectively avoided, soil in soil can be effectively prevented from flowing back into the fertilizer delivery pipe, and the fertilizer delivery pipe is prevented from being blocked; when fertilizing, the work of mechanism of aerifing makes the one-way bleeder valve can open in the gas of filling in the cavity to blow off soil to a certain extent, be favorable to the normal discharge of fertilizer.

4. Ingenious set up first opening, the second opening, third opening and fourth opening to the cooperation relation between them of rational control, when carrying out the fertilization operation, the almost quantitative replenishment of fertilizer in the hopper is to the cavity, the work of mechanism is aerifyd in the cooperation, the opening of one-way bleeder valve intermittent type nature, then send the almost quantitative soil that falls into of fertilizer in the fertilizer pipe, the volume that falls into soil can obtain better control, the fertilizer that can effectively avoid fertilizing is too much or too little.

Optionally, the inflating mechanism comprises an inflator fixed on the frame and a cam fixed on the intermediate shaft, and the cam is provided with a cam groove forming a closed loop; a piston is connected in the inflator pump in a sliding manner, a connecting rod with one end clamped and connected in the cam groove in a sliding manner is connected on the piston, and a one-way air inlet valve is arranged on the inflator pump; the inflator is connected with an air pipe, and one end of the air pipe extends into the rotation center of the intermediate shaft and is rotationally connected with the intermediate shaft. In this scheme, the power of direct utilization jackshaft orders about piston reciprocating motion to the realization is aerifyd the cavity, need not additionally to add power unit, helps simplifying equipment structure when reducing equipment manufacturing cost.

Optionally, the power unit includes a transmission part, a speed reducer and a motor for driving the speed reducer to work, the transmission part includes a transmission chain, a first chain wheel fixed on the intermediate shaft and a second chain wheel driven by the speed reducer, and the transmission chain is sleeved on the first chain wheel and the second chain wheel. When the soil turning cutter on the middle shaft needs to be driven to work, the motor and the speed reducer are started, the second chain wheel rotates, and the first chain wheel and the soil turning cutter on the middle shaft can also rotate along with the second chain wheel and the first chain wheel under the driving of the transmission chain.

Optionally, the telescopic mechanism is a cylinder. The cylinder is easy to control and accords with the in-service use demand, chooses for use the cylinder as telescopic machanism comparatively suitable.

Optionally, a mud guard is fixed on the machine frame above the intermediate shaft. Set up the mud cover can be better prevent that earth from splashing.

Optionally, a plurality of agitator arms are fixed within the intermediate shaft. In the process of the middle shaft operation, the stirring rod in the middle shaft can stir the fertilizer in the middle shaft, and the fertilizer hardening can be effectively avoided.

Optionally, the one-way discharge valve is arranged on one side of the fertilizer conveying pipe far away from the middle shaft. Set up like this, when one-way bleeder valve was closed, even if send fertile pipe to insert in soil, thereby also can be better avoid earth to get into and send fertile pipe to lead to sending fertile pipe to block up.

Optionally, the fertilizer conveying pipe comprises a fixed pipe connected with the annular sleeve and an adjusting pipe screwed on the fixed pipe. Set up like this, the length of conveying pipe can be adjusted, and the user can be according to actual need control the degree of depth of fertilizeing.

Optionally, the lower end of the fertilizer conveying pipe is a tip of an oblique cut, and the opening direction of the lower end of the fertilizer conveying pipe is opposite to the moving direction of the vehicle body. The fertilizer feeding pipe is arranged in the soil, so that the fertilizer feeding pipe can be smoothly inserted into the soil, and the fertilizer can be ensured to enter the deep part of the soil through the fertilizer feeding pipe. The opening direction that will send fertile pipe lower extreme sets to the direction opposite with automobile body direction of motion, send fertile pipe along with the in-process of automobile body motion can be better block earth and get into through the opening and send fertile intraductal, avoid sending fertile pipe to block up, set up like this moreover and can dial earth to a certain extent for send the fertilizer in the fertile pipe can be better fall down.

Drawings

Fig. 1 is a schematic structural diagram of an automatic fast fertilizing apparatus according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of a frame and hopper according to an embodiment of the present invention;

fig. 3 is a sectional view of the soil turning unit and the fertilizer feeding unit in the second embodiment of the invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a vehicle body 10, a frame 20, a hopper 21, a cylinder 22, a mud guard 23, a fertilizer inlet pipe 30, a sealing plate 31, a third through hole 311, an intermediate shaft 40, a cavity 41, a stirring rod 42, a fourth through hole 43, a second through hole 44, a soil turning knife 45, an annular sleeve 50, a first through hole 51, a fertilizer delivery pipe 52, a one-way discharge valve 53, a support rod 54, a speed reducer 60, a second chain wheel 61, a motor 62, an inflator 70, a piston 71, a connecting rod 72, a cam 73, a cam groove 731, an air pipe 74, a first chain wheel 80, a transmission chain 81, a baffle 90 and a spring 91.

Example one

The embodiment is basically as shown in fig. 1 and fig. 2: an automatic rapid fertilizing device comprises a vehicle body 10, a soil turning unit, a fertilizer feeding unit, a power unit and a frame 20, wherein the vehicle body 10 in the embodiment is a vehicle which can be driven by people and can normally run on soil. The frame 20 is installed at the rear end of automobile body 10, is connected with telescopic machanism between frame 20 and the automobile body 10, and in this embodiment, telescopic machanism includes 2 cylinders 22, and the bottom welding of cylinder 22 is on automobile body 10, and the piston rod welding of cylinder 22 is on frame 20, can control the distance of frame 20 and ground through operation cylinder 22.

The soil turning unit comprises an intermediate shaft 40 and a plurality of soil turning knives 45 welded on the intermediate shaft 40, wherein the soil turning knives 45 are of a bent knife structure, and can better turn the soil and mix the soil. The intermediate shaft 40 is rotatably connected to the rack 20 through a bearing, a cavity 41 is formed in the intermediate shaft 40, a plurality of stirring rods 42 are welded in the cavity 41, and the intermediate shaft 40 is arranged to stir materials in the cavity 41 better. The top welding that lies in jackshaft 40 on frame 20 has fender mud cover 23, sets up the better earth that prevents of fender mud cover 23 ability and splashes. At least one annular sleeve 50 is rotatably connected to the intermediate shaft 40, in the present embodiment, 3 annular sleeves 50 are provided, and a support rod 54 is welded to the annular sleeve 50, and the support rod 54 is welded to the machine frame 20. The welding has the fertile pipe 52 of vertical decurrent confession on the annular cover 50, send fertile pipe 52 including fixed pipe and control tube, and fixed pipe welding is on annular cover 50, and control tube threaded connection can control the length of sending fertile pipe 52 through twisting the control tube at the surface of fixed pipe, and the user can adjust according to actual need. The lower side of the fertilizer conveying pipe 52 is provided with a one-way discharge valve 53, when the pressure in the fertilizer conveying pipe 52 is increased, the one-way discharge valve 53 can be automatically opened, and materials in the fertilizer conveying pipe 52 can be discharged through the one-way discharge valve 53; the one-way outlet valve 53 used in this embodiment is a spring-type one-way outlet valve. The annular sleeve 50 is provided with a first through hole 51 communicated with the fertilizer conveying pipe 52, the intermediate shaft 40 is provided with a second through hole 44, when the intermediate shaft 40 rotates to a fixed position, the second through hole 44 is communicated with the first through hole 51, and materials in the cavity 41 can enter the fertilizer conveying pipe 52 through the second through hole 44 and the first through hole 51.

The fertilizer feeding unit comprises a hopper 21, an air charging mechanism and a fertilizer feeding pipe 30, wherein the hopper 21 is fixedly arranged on the rack 20. The arrangement is that the stabilizing frame is welded on the hopper 21 and is connected on the vehicle body 10 in a sliding way, and when the air cylinder 22 drives the rack 20 and the hopper 21 to move, the movement of the rack 20 and the hopper 21 can be more stable. One end of the fertilizer feeding pipe 30 is communicated with the outlet at the lower end of the hopper 21, the other end of the fertilizer feeding pipe 30 is connected with a sealing plate 31, and the sealing plate 31 is attached to the right end part of the intermediate shaft 40 to completely seal the right end part of the intermediate shaft 40. The seal plate 31 has a third port 311 communicating with the fertilizer inlet pipe 30, and the right end of the intermediate shaft 40 has a fourth port 43 communicating with the third port 311. When the intermediate shaft 40 is rotated to the extent that the second port 44 communicates with the first port 51, the lower end of the fertilizer inlet pipe 30 is blocked by the end of the intermediate shaft 40, and the fertilizer in the fertilizer inlet pipe 30 cannot enter the intermediate shaft 40, and at the same time, the fourth port 43 is blocked by the seal plate 31.

The power unit is used for driving the intermediate shaft 40 to rotate, the power unit comprises a transmission part, a speed reducer 60 and a motor 62, the speed reducer 60 and the motor 62 are fixedly mounted on the rack 20, and an output shaft of the motor 62 is connected with an input shaft of the speed reducer 60. The transmission part comprises a first chain wheel 80, a second chain wheel 61 and a transmission chain 81 sleeved on the first chain wheel 80 and the second chain wheel 61, the first chain wheel 80 is welded on the intermediate shaft 40, and the second chain wheel 61 is welded on an output shaft of the speed reducer 60.

The inflation mechanism comprises a cam 73 and an inflator 70 with an opening at the lower end, the inflator 70 is fixedly arranged on the frame 20, the cam 73 is welded at the left end of the intermediate shaft 40, and a cam groove 731 forming a closed loop is arranged on the side surface of the cam 73. The piston 71 is slidably and hermetically connected in the inflator 70, the connecting rod 72 having one end engaged with and slidably connected in the cam groove 731 is connected to the piston 71, and the piston 71 can be driven to reciprocate along the inner wall of the inflator 70 by the connecting rod 72 when the cam 73 rotates. The one-way intake valve is installed at the upper end of the inflator 70, and is automatically opened when the internal pressure of the upper portion of the inflator 70 is reduced. An air pipe 74 is connected to the upper end of the inflator 70, one end of the air pipe 74 extends into the rotation center of the intermediate shaft 40 and is rotatably connected to the intermediate shaft 40, and the air pipe 74 is hermetically connected to the intermediate shaft 40.

When the fertilizing operation is required, the depth of the soil turning knife 45 and the fertilizer conveying pipe 52 extending into the soil is adjusted by operating the air cylinder 22, so that the soil turning knife 45 and the fertilizer conveying pipe 52 can be inserted into the soil. Fertilizer is poured into the hopper 21, the motor 62 is started, and then the vehicle body 10 is controlled to advance according to the place where the fertilizer is to be applied. During the advancing process of the vehicle body 10, the motor 62 and the reducer 60 drive the intermediate shaft 40 to rotate through chain transmission, and the soil turning knife 45 on the intermediate shaft 40 turns the soil loose and stirs the soil. In the rotating process of the intermediate shaft 40, the third through hole 311 is intermittently communicated with the fourth through hole 43, and fertilizer in the hopper 21 can intermittently enter the cavity 41 of the intermediate shaft 40 through the fertilizer inlet pipe 30; at the same time, the second port 44 is also intermittently communicated with the first port 51, and the fertilizer in the cavity 41 passes through the second port 44 and the first port 51 in order to enter the fertilizer feeding pipe 52. The intermediate shaft 40 rotates simultaneously with the rotation of the cam 73 on the intermediate shaft 40, and the cam 73 drives the piston 71 to reciprocate along the inner wall of the inflator 70 through the connecting rod 72, and in the process, the inflator 70 intermittently inflates the cavity 41 with gas. When the first through hole 51 is communicated with the second through hole 44, one end of the fertilizer feeding pipe 30 is blocked by the left end part of the middle shaft 40, the fourth through hole 43 is also blocked by the sealing plate 31, a closed space is formed in the cavity 41 and the fertilizer feeding pipe 52, the pressure in the cavity 41 and the fertilizer feeding pipe 52 is increased by filling the gas, the one-way discharge valve 53 is opened, and the fertilizer in the fertilizer feeding pipe 52 falls into the soil through the one-way discharge valve 53. The turning knife 45 mixes and stirs the soil and the fertilizer falling into the soil, so that the fertilizer can be distributed in the soil in a relatively dispersed manner, and the fertilizer is prevented from being excessively concentrated.

Example two

The present embodiment is different from the first embodiment in that: as shown in fig. 3, in this embodiment, the fertilizer tube 52 is not provided in a detachable form, and the fertilizer tube 52 is a single body. The lower end of the fertilizer feeding pipe 52 is provided with a tip of a bevel cut, and the opening direction of the lower end of the fertilizer feeding pipe 52 is opposite to the moving direction of the vehicle body 10. The lower end opening of the fertilizer delivery pipe 52 is hinged with a baffle 90, the hinged position is located above the baffle 90, a spring 91 is connected between the baffle 90 and the inner wall of the fertilizer delivery pipe 52, and the baffle 90 can plug the lower end opening of the fertilizer delivery pipe 52 under the action of the spring 91.

The lower end of the fertilizer delivery pipe 52 is provided with a tip with an oblique cut, so that the fertilizer delivery pipe 52 can be smoothly inserted into soil. The direction of the opening at the lower end of the fertilizer delivery pipe 52 is controlled, so that soil can be better prevented from entering the fertilizer delivery pipe 52 through the opening in the process that the fertilizer delivery pipe 52 moves along with the vehicle body 10, and the fertilizer delivery pipe 52 is prevented from being blocked. The baffle 90 is arranged, when the gas filled in the inflating mechanism is discharged through the one-way discharging valve 53, the gas and the fertilizer discharged along with the gas exert an acting force on the baffle 90, so that the baffle 90 can be opened, soil can be pushed open to a certain degree in the opening process of the baffle 90, and the fertilizer in the fertilizer conveying pipe 52 can be ensured to fall smoothly.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.

Claims

1. The utility model provides an automatic quick fertilization equipment which characterized in that: the device comprises a vehicle body, a soil turning unit, a fertilizer feeding unit, a power unit and a rack arranged on one side of the vehicle body, wherein a telescopic mechanism is connected between the rack and the vehicle body; the soil turning unit comprises an intermediate shaft which is rotationally connected to the rack and a plurality of soil turning cutters which are arranged on the intermediate shaft, and a cavity is formed in the intermediate shaft; the middle shaft is rotatably connected with an annular sleeve fixedly connected with the rack, the annular sleeve is provided with a fertilizer conveying pipe which vertically faces downwards, and the fertilizer conveying pipe is provided with a one-way discharge valve; a first through hole communicated with the fertilizer conveying pipe is formed in the annular sleeve, and a second through hole capable of being communicated with the first through hole is formed in the intermediate shaft; the fertilizer inlet unit comprises a hopper, an inflation mechanism for inflating the cavity and a fertilizer inlet pipe, one end of the fertilizer inlet pipe is communicated with the hopper, one end, far away from the hopper, of the fertilizer inlet pipe is connected with a sealing plate attached to the end part of the intermediate shaft, the sealing plate is provided with a third through hole communicated with the fertilizer inlet pipe, and the end part of the intermediate shaft is provided with a fourth through hole communicated with the third through hole; when the first through hole is communicated with the second through hole, one end of the fertilizer inlet pipe is blocked by the middle shaft, and the fourth through hole is blocked by the sealing plate; the power unit is arranged on the frame and used for driving the intermediate shaft to rotate.

2. An automatic rapid fertilizing device as in claim 1, characterised in that: the inflating mechanism comprises an inflator pump fixed on the frame and a cam fixed on the intermediate shaft, and the cam is provided with a cam groove forming a closed loop; a piston is connected in the inflator pump in a sliding manner, a connecting rod with one end clamped and connected in the cam groove in a sliding manner is connected on the piston, and a one-way air inlet valve is arranged on the inflator pump; the inflator is connected with an air pipe, and one end of the air pipe extends into the rotation center of the intermediate shaft and is rotationally connected with the intermediate shaft.

3. An automatic rapid fertilizing device as claimed in claim 1, characterised in that: the power unit comprises a transmission part, a speed reducer and a motor for driving the speed reducer to work, the transmission part comprises a transmission chain, a first chain wheel fixed on an intermediate shaft and a second chain wheel driven by the speed reducer, and the transmission chain is sleeved on the first chain wheel and the second chain wheel.

4. An automatic rapid fertilizing device as in claim 1, characterised in that: the telescopic mechanism is a cylinder.

5. An automatic rapid fertilizing apparatus as claimed in any one of claims 1 to 4, characterised in that: a mud guard is fixed above the intermediate shaft on the frame.

6. An automatic rapid fertilizing apparatus as claimed in any one of claims 1 to 4, characterised in that: a plurality of stirring rods are fixed in the middle shaft.

7. An automatic rapid fertilizing apparatus as claimed in any one of claims 1 to 4, characterised in that: the lower end of the fertilizer conveying pipe is a tip of an oblique cut, and the opening direction of the lower end of the fertilizer conveying pipe is opposite to the moving direction of the vehicle body.

8. An automatic rapid fertilizing apparatus as claimed in any one of claims 1 to 4, characterised in that: the fertilizer delivery pipe comprises a fixed pipe connected with the annular sleeve and an adjusting pipe connected with the fixed pipe in a threaded manner.

9. An automatic rapid fertilizing apparatus as claimed in any one of claims 1 to 4, characterised in that: the one-way discharge valve is arranged on one side of the fertilizer delivery pipe far away from the middle shaft.