CN112314137A

CN112314137A - Agricultural farmland is tilled and is suitable for device with chemical fertilizer

Info

Publication number: CN112314137A
Application number: CN202011391804.0A
Authority: CN
Inventors: 张耘尧
Original assignee: Individual
Current assignee: Ma Yajun
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-02-05
Anticipated expiration: 2040-12-03
Also published as: CN112314137B

Abstract

The invention relates to the field of agriculture, in particular to a chemical fertilizer application device for agricultural farmland cultivation. The technical problem is to provide a fertilizer application device for agricultural farmland cultivation, which is provided with a fertilizer burying device, can adjust the plowing depth and can also apply fertilizer quantitatively. The embodiment provides a fertilizer application device for agricultural farmland cultivation, which comprises a frame, wheels, a hopper, a regulating component and the like; the bottom of frame is provided with two sets of wheels, and hopper, regulation and control subassembly all have three groups and the interval sets up on the frame, and the hopper setting is provided with the regulation and control subassembly in one side of hopper at the middle part of frame. According to the invention, the fertilizer application ratio of the fertilizer is regulated by adding the regulating component, the triggering component and the movable door component, the regulating component can regulate the fertilizer application ratio in advance, the triggering component can realize automatic fertilizer application by matching with the movable door component, and the quantitative and automatic fertilizer application of the device is realized by the components.

Description

Agricultural farmland is tilled and is suitable for device with chemical fertilizer

Technical Field

The invention relates to the field of agriculture, in particular to a chemical fertilizer application device for agricultural farmland cultivation.

Background

Granular fertilizer is an important agricultural resource, and solid granular fertilizer refers to compound fertilizer, potash fertilizer and other fertilizers. Fertilization refers to an agricultural technical measure of applying fertilizer to soil or sprinkling the fertilizer on plants, providing nutrients required by the plants and maintaining and improving soil fertility. Reasonable fertilizer application can increase crop yield, improve crop quality, increase soil fertility and improve economic benefit. At present, mechanical fertilization is one of the main means for maintaining sustainable development of agriculture.

Through detection, for example, patent with patent publication number CN111165141A discloses a solid-state granular fertilizer application vehicle, which comprises a vehicle frame, a pit digging mechanism and a lifting mechanism. The frame is provided with the fertilizer storehouse in both ends about be provided with the fertilizer apparatus in the fertilizer storehouse, the fertilizer apparatus can pass through pipeline ration with the inside fertilizer in fertilizer storehouse and carry to rotatory main shaft feed inlet. The middle top of the frame is provided with a lifting mechanism, and the lifting mechanism consists of a hydraulic system, a limiting system and a lifting plate. The pit digging mechanism is composed of a drill bit, helical blades, a rotating main shaft and a driving motor. The device can realize automatic particle fertilization and replace manual fertilization, thereby improving the working efficiency; however, this device is not provided with a chemical fertilizer burying device, cannot adjust the depth of plowing, and cannot apply fertilizer quantitatively.

Aiming at the problems, a fertilizer application device for agricultural farmland cultivation, which is provided with a fertilizer burying device, can adjust the plowing depth and can also apply fertilizer quantitatively, is developed.

Disclosure of Invention

In order to overcome the defects that the prior fertilizer applying device is not provided with a fertilizer burying device, cannot adjust the plowing depth and cannot apply fertilizer quantitatively, the invention has the technical problems that: provides a fertilizer application device for agricultural farmland cultivation, which is provided with a fertilizer burying device, can adjust the plowing depth and can also apply fertilizer quantitatively.

The technical implementation scheme of the invention is as follows: the utility model provides an agricultural farmland is tilled and is suitable for device with chemical fertilizer, which comprises a vehicle rack, the hopper, the wheel, the regulation and control subassembly, trigger subassembly and movable door subassembly, the bottom of frame is provided with two sets of wheels, the hopper, the regulation and control subassembly, trigger the subassembly, movable door subassembly all has three groups and the interval sets up on the frame, the hopper sets up the middle part at the frame, one side at the hopper is provided with the regulation and control subassembly, the spare part fixed connection of regulation and control subassembly is on the hopper, movable door subassembly sets up the bottom at the hopper, trigger subassembly fixed connection is on the regulation and control subassembly, trigger subassembly and movable door subassembly sliding.

As a preferred technical scheme of the invention, the regulating and controlling component comprises a vertical support plate I, a horizontal support plate I, a cylinder and a balancing weight, the connector, T type slider, adjusting screw, blanking funnel and buffer assembly, erect the one end fixed connection of extension board one on the hopper, the other end of erecting extension board one rotates and is connected with horizontal extension board one, cylinder sliding connection is in the recess on horizontal extension board one, the balancing weight rotates and connects at the cylindrical middle part, T type slider fixed connection is in one side of horizontal extension board one, connector sliding connection is in the groove of T type slider, the one end of connector is fixed with the balancing weight, adjusting screw passes the connector, adjusting screw's one end fixed connection is in one side that the connector was kept away from to T type slider, blanking funnel rotates the one end of connecting and keeping away from the balancing weight on horizontal extension board one, the one end fixed connection of buffer assembly is close to the one end of blanking funnel on horizontal extension board one.

As a preferred technical scheme of the invention, the first transverse support plate is provided with the inclined chute, so that the fertilizer can be poured more cleanly when the blanking hopper pours the fertilizer.

As a preferred technical scheme of the invention, the buffer assembly comprises a third vertical support plate, a first sliding column and a first spring, one end of the first sliding column is fixedly connected to one end, close to the blanking funnel, of the first transverse support plate, the other end of the first sliding column is connected with the third vertical support plate in a sliding mode, the first sliding column is sleeved with the first spring, and two ends of the first spring are respectively in contact with one sides of the first vertical support plate and the first sliding column.

As a preferred technical scheme, the trigger assembly comprises a square shell, a first sliding column, a third ejector rod, a third spring, a roller and a touch plate, one side of the square shell is fixedly connected to a first vertical supporting plate, the third sliding column is fixedly connected into the square shell, the ejector rod is connected onto the third sliding column in a sliding mode, the third spring is sleeved on the third sliding column, one end of the third spring is fixedly connected to one side inside the square shell, the other end of the third spring is in contact with the ejector rod, one end of the ejector rod is rotatably connected with the roller, one side of the touch plate is fixedly connected to the inner side of the blanking hopper, and the touch plate is in contact with the roller.

As a preferred technical scheme, the movable door assembly comprises two groups of vertical support plates II, two sliding columns II, a bin door and two springs II, wherein the two groups of movable door assemblies are symmetrically arranged along the bottom of the hopper, one end of each vertical support plate II is fixedly connected to the hopper, the other end of each vertical support plate II is connected with the corresponding sliding column II in a sliding mode, one end of each sliding column II is fixedly connected with the bin door, the springs II are sleeved on the corresponding sliding columns II, one end of each spring II is fixedly connected with one end of each sliding column II, and the other end of each spring II is in contact with the corresponding vertical support plate II.

As a preferred technical scheme, the novel electric vehicle frame further comprises three fixing plates, a plowshare, an adjusting shell, a first pin and a fourth spring, wherein the fixing plates are arranged at the front end of the vehicle frame at intervals, one end of the adjusting shell is fixedly connected to the fixing plates, the first pin penetrates through the fixing plates, a plurality of round holes are formed in the plowshare, the plowshare is fixedly arranged on the fixing plates through the first pin, one end of the fourth spring is fixedly connected to the first pin, and the other end of the fourth spring is fixedly connected to one side of the adjusting shell.

The invention further comprises a rectangular adjusting plate, a U-shaped scraping plate, a pin II, a spring V and a tension spring, wherein three groups of rectangular adjusting plates are arranged, one end of each rectangular adjusting plate is fixedly connected to the rear end of the frame, two ends of each U-shaped scraping plate respectively penetrate through the rectangular adjusting plate in a sliding mode, the pin II penetrates through the rectangular adjusting plate, the U-shaped scraping plate is fixed on the rectangular adjusting plate through the pin II, one end of the spring V is fixedly connected with the frame, the other end of the spring V is fixedly connected with the pin II, one end of the tension spring is fixedly connected to one side of the rectangular adjusting plate, and the other end of the tension spring is fixedly connected to the frame.

The invention has the following advantages:

1. according to the invention, the fertilizer application ratio of the fertilizer is regulated by adding the regulating component, the triggering component and the movable door component, the regulating component can regulate the fertilizer application ratio in advance, the triggering component can realize automatic fertilizer application by matching with the movable door component, and the quantitative and automatic fertilizer application of the device is realized by the components.

2. The invention realizes the function of plowing by adding the fixed plate, the plowshare, the adjusting shell, the pin I and the spring IV, and can realize the adjustment of plowing depth by adjusting the inserting position of the pin I and the plowshare which are in different circular motions.

3. According to the invention, the thickness of the buried soil of the chemical fertilizer is adjusted by adding the rectangular adjusting plate, the U-shaped scraper, the pin II, the spring V and the tension spring, the organic fertilizer is usually deeply buried, and the depth of the U-shaped scraper embedded into the ground surface can be adjusted by matching the pin II with the tension spring, so that the thickness of the buried soil is adjusted.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a partial structural schematic diagram of the present invention.

Fig. 3 is a schematic perspective view of a cushion assembly according to the present invention.

FIG. 4 is a schematic perspective view of a regulating assembly according to the present invention.

Fig. 5 is a schematic perspective view of the trigger assembly of the present invention.

FIG. 6 is a schematic perspective view of the plowshare and the adjusting shell of the present invention.

Fig. 7 is a schematic perspective view of the U-shaped scraper of the present invention.

Wherein: 1-vehicle frame, 101-hopper, 102-wheel, 2-vertical support plate I, 201-horizontal support plate I, 202-cylinder, 203-counterweight, 204-connector, 205-T-shaped slide block, 206-adjusting screw rod, 207-blanking funnel, 3-vertical support plate III, 301-sliding column I, 302-spring I, 4-vertical support plate II, 401-sliding column II, 402-bin gate, 403-spring II, 5-square shell, 501-sliding column III, 502-ejector rod, 503-spring III, 504-roller, 505-touch plate, 6-fixing plate, 601-plough head, 602-adjusting shell, 603-pin I, 604-spring IV, 7-rectangular adjusting plate, 701-U-shaped scraper plate, 702-pin II, 703-spring V, 704-tension spring.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Example 1

The utility model provides a device is suitable for with chemical fertilizer is ploughed in agricultural farmland, as shown in figure 1, including frame 1, hopper 101, wheel 102, regulation and control subassembly, trigger subassembly and movable door subassembly, both sides are provided with two sets of wheels 102 around the bottom of frame 1, hopper 101, regulation and control subassembly, trigger the subassembly, movable door subassembly all has three groups and the interval sets up on frame 1, hopper 101 sets up the middle part at frame 1, downside at hopper 101 is provided with the regulation and control subassembly, the spare part fixed connection of regulation and control subassembly is on hopper 101, movable door subassembly sets up the bottom at hopper 101, trigger subassembly fixed connection is on regulation and control subassembly, trigger subassembly and movable door subassembly sliding contact.

To pouring into the chemical fertilizer into hopper 101 before using earlier, then in adjusting regulation and control subassembly, after regulation and control subassembly regulation is suitable, the chemical fertilizer can fall into regulation and control subassembly from hopper 101, treat after the chemical fertilizer in the regulation and control subassembly satisfies the default, the chemical fertilizer can be poured out from regulation and control subassembly, at this moment, trigger subassembly and movable door subassembly break away from the contact, movable door subassembly can self-closing, after the chemical fertilizer is emptied, the regulation and control subassembly can return, at this moment because the unbalance of regulation and control subassembly leads to triggering the subassembly and can continue upward movement and open movable door subassembly, at this moment the chemical fertilizer falls into again in the regulation and control subassembly, so just can accomplish quantitative fertilization repeatedly.

Example 2

Based on the embodiment 1, as shown in fig. 2, the adjusting and controlling component includes a first vertical supporting plate 2, a first horizontal supporting plate 201, a column 202, and a counterweight 203, connector 204, T type slider 205, adjusting screw 206, blanking funnel 207 and buffer assembly, the upper end fixed connection of erecting support board 2 is on hopper 101 outer wall, the lower extreme of erecting support board 2 rotates and is connected with horizontal support board 201, cylinder 202 sliding connection is in the recess on horizontal support board 201, balancing weight 203 rotates the middle part of connecting at cylinder 202, T type slider 205 fixed connection is at the upside of horizontal support board 201, connector 204 sliding connection is in the groove of T type slider 205, the left front end of connector 204 is fixed with balancing weight 203, adjusting screw 206 passes connector 204, adjusting screw 206's right rear end fixed connection is in the front side of T type slider 205, blanking funnel 207 rotates the right rear end of connecting at horizontal support board 201, buffer assembly's lower extreme fixed connection has the rear end on horizontal support board 201.

Before use, a worker needs to firstly adjust the counterweight block 203 to a proper position through the adjusting screw rod 206, the connector 204 can be driven to slide on the T-shaped sliding block 205 by screwing the adjusting screw rod 206, the connector 204 is connected with the counterweight block 203, so that the position of the counterweight block 203 can be adjusted, the connecting part of the vertical support plate I2 and the transverse support plate I201 is used as a fulcrum, the weight of the counterweight block 203 is the same as that of the blanking funnel 207 and the fertilizer in the counterweight block, the transverse support plate I201 keeps a balanced state, when the weight of the fertilizer plus the blanking funnel 207 is larger than that of the counterweight block 203, the blanking funnel 207 can drive the transverse support plate I201 to rotate, the fertilizer can be poured, when the fertilizer is completely poured, the weight of the counterweight block 203 is larger than that of the empty blanking funnel 207, the counterweight block 203 can be pressed downwards, the blanking funnel 207 and the buffer component can be upwards until the buffer component touches the, thus, the quantitative proportioning of the fertilizer and the fertilizing action are completed.

Two opposite inner sides of the first transverse supporting plate 201 are provided with inclined sliding grooves, so that fertilizer can be poured more cleanly when the blanking hopper 207 pours fertilizer.

The inclined sliding groove formed in the first transverse supporting plate 201 has a certain inclination, so that the first transverse supporting plate 201 can be inclined more thoroughly when the fertilizer is poured by the blanking funnel 207, and the fertilizer in the blanking funnel 207 can be completely poured out, so that the problem that the fertilizer cannot be completely poured out when the fertilizer is poured is solved.

The buffer component comprises a vertical support plate III 3, a sliding column I301 and a spring I302, wherein the lower end of the sliding column I301 is fixedly connected to the right front end of the horizontal support plate I201, the upper end of the sliding column I301 is connected with the vertical support plate III 3 in a sliding mode, the spring I302 is sleeved on the sliding column I301, the lower end of the spring I302 is in contact with the lower bottom side of the sliding column I301, and the upper end of the spring I302 is in contact with the bottom side of the vertical support plate I2.

After the fertilization is completed, the blanking funnel 207 when the balancing weight 203 is pressed down rises rapidly, in order to protect the blanking funnel 207 and reduce the resilience force, when the blanking funnel 207 returns, the vertical support plate three 3 contacts the hopper 101 and then compresses the spring one 302, and through the damping buffer of the spring one 302, the blanking funnel 207 can touch the hopper 101 stably.

Example 3

On the basis of embodiment 2, as shown in fig. 5 and 3, the trigger assembly includes a square housing 5, a sliding column three 501, a push rod 502, a spring three 503, a roller 504 and a touch plate 505, the outer side of the square housing 5 is fixedly connected to the vertical support plate one 2, the sliding column three 501 is fixedly connected to the bottom side inside the square housing 5, the push rod 502 is slidably connected to the sliding column three 501, the spring three 503 is sleeved on the sliding column three 501, the lower end of the spring three 503 is fixedly connected to the bottom side inside the square housing 5, the upper end of the spring three 503 is in contact with the push rod 502, the lower end of the push rod 502 is rotatably connected with the roller 504, the outer side of the touch plate is fixedly connected to the inner wall of the blanking funnel 207, and the touch plate 505 is; the movable door assembly comprises two vertical support plates II 4, two sliding columns 401, a bin door 402 and two springs 403, the two groups of movable door assemblies are symmetrically arranged along the bottom of the hopper 101, the upper ends of the two vertical support plates 4 are fixedly connected to the hopper 101, the lower ends of the two vertical support plates 4 are connected with the two sliding columns 401 in a sliding mode, the bin door 402 is fixedly connected to the inner ends of the two sliding columns 401, the two springs 403 are sleeved on the two sliding columns 401, the inner ends of the two springs 403 are fixedly connected with the inner ends of the two sliding columns 401, and the outer ends of the two springs 403 are in contact with the two vertical support plates 4.

When the blanking funnel 207 finishes pouring the fertilizer and rises, the ejector rod 502 can touch the bin gate 402 in advance, the spring III 503 is compressed at the moment, the end part of the ejector rod 502 is triangular, and the top end can extrude the two closed bin gates 402, so that the fertilizer can be discharged from the bin gate 402 and fall into the blanking funnel 207; at this time, the second spring 403 on the bin gate 402 is in a compressed state, when the weight of the fertilizer in the blanking funnel 207 is greater than that of the counterweight block 203 and the fertilizer falls, the top rod 502 falls along with the blanking funnel 207, at this time, the top rod 502 slides away from the slow bin gate 402, the third spring 503 resets, and the second spring 403 enables the two bin gates 402 to be in contact sealing again, so that the quantitative proportioning of the fertilizer is completed.

Example 4

On the basis of embodiment 3, as shown in fig. 6-7, the frame further includes three fixing plates 6, a plowshare 601, an adjusting shell 602, a first pin 603 and a fourth spring 604, wherein the fixing plates 6 are arranged at the front end of the frame 1 at intervals, the left end of the adjusting shell 602 is fixedly connected to the right side of the fixing plate 6, the first pin 603 penetrates through the fixing plate 6, the plowshare 601 is provided with a plurality of circular holes, the plowshare 601 is fixedly arranged on the fixing plate 6 through the first pin 603, the left end of the fourth spring 604 is fixedly connected to the first pin 603, and the right end of the fourth spring 604 is fixedly connected to the right side of the adjusting shell 602; the multifunctional automobile rear wheel scraper is characterized by further comprising a rectangular adjusting plate 7, a U-shaped scraper plate 701, a second pin 702, a fifth spring 703 and a tension spring 704, the rectangular adjusting plate 7 is provided with three groups, the front end of the rectangular adjusting plate 7 is fixedly connected to the rear end of the automobile frame 1, the left end and the right end of the U-shaped scraper plate 701 respectively penetrate through the rectangular adjusting plate 7 in a sliding mode, the second pin 702 penetrates through the rectangular adjusting plate 7, the U-shaped scraper plate 701 is fixed to the rectangular adjusting plate 7 through the second pin 702, the right rear end of the fifth spring 703 is fixedly connected with the automobile frame 1, the left front end of the fifth spring 703 is fixedly connected with the second pin 702, the lower end of the tension spring 704 is fixedly connected to the upper side of.

When the wheels 102 rotate to drive the whole device to move forwards, the plowshare 601 located at the bottom end of the vehicle head can plow a ditch along the advancing direction, the fertilizer can just fall into the ditch, the bottom of the tail of the vehicle is also provided with the U-shaped scraper 701, after the fertilizer is poured, the vehicle can drag the U-shaped scraper 701 to bury the fertilizer, the plowshare 601 and the U-shaped scraper 701 are both adjustable, and the depth of the plowshare 601 and the U-shaped scraper 701 inserted into the soil can be adjusted by adjusting the positions of the first pin 603 and the second pin 702.

It should be understood that the above description is for exemplary purposes only and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention are intended to be included within the scope of the claims herein.

Claims

1. The utility model provides an agricultural farmland is tilled and is used chemical fertilizer and be suitable for device, including frame (1), hopper (101), wheel (102), the bottom of frame (1) is provided with two sets of wheels (102), hopper (101) have threely, hopper (101) interval sets up on frame (1), a serial communication port, still including the regulation and control subassembly, trigger subassembly and movable door subassembly, the regulation and control subassembly, trigger the subassembly, movable door subassembly all has three groups and the interval sets up on frame (1), hopper (101) set up the middle part in frame (1), be provided with the regulation and control subassembly in one side of hopper (101), the spare part fixed connection of regulation and control subassembly is on hopper (101), movable door subassembly sets up the bottom in hopper (101), trigger subassembly fixed connection is on the regulation and control subassembly, trigger subassembly and movable door subassembly sliding contact.

2. The chemical fertilizer application device for agricultural farmland cultivation as claimed in claim 1, characterized in that the regulation and control component comprises a first vertical support plate (2), a first horizontal support plate (201), a cylinder (202), a balancing weight (203), a connector (204), a T-shaped slider (205), an adjusting screw (206), a blanking funnel (207) and a buffer component, one end of the first vertical support plate (2) is fixedly connected to the hopper (101), the other end of the first vertical support plate (2) is rotatably connected with the first horizontal support plate (201), the cylinder (202) is slidably connected in a groove on the first horizontal support plate (201), the balancing weight (203) is rotatably connected in the middle of the cylinder (202), the T-shaped slider (205) is fixedly connected to one side of the first horizontal support plate (201), the connector (204) is slidably connected in a groove of the T-shaped slider (205), one end of the connector (204) is fixed with the balancing weight (203), adjusting screw (206) pass connector (204), and the one end fixed connection of adjusting screw (206) is in the one side that connector (204) were kept away from in T type slider (205), and blanking funnel (207) rotate to be connected and keep away from the one end of balancing weight (203) on horizontal support board one (201), and the one end fixed connection of buffering subassembly is close to the one end of blanking funnel (207) on horizontal support board one (201).

3. The fertilizer adapting device for agricultural farmland cultivation as claimed in claim 2, wherein the first horizontal support plate (201) is provided with an inclined chute, so that the fertilizer can be poured more cleanly when the blanking funnel (207) pours the fertilizer.

4. The chemical fertilizer application device for agricultural farmland cultivation as claimed in claim 3, characterized in that the buffer component comprises a third vertical support plate (3), a first sliding column (301) and a first spring (302), one end of the first sliding column (301) is slidably connected to one end of the first horizontal support plate (201) close to the blanking funnel (207), the other end of the first sliding column (301) is fixedly connected with the third vertical support plate (3), the first spring (302) is sleeved on the first sliding column (301), and two ends of the first spring (302) are respectively in contact with the first vertical support plate (2) and one side of the sliding column.

5. The chemical fertilizer application device for agricultural farmland cultivation as claimed in claim 4, characterized in that the trigger assembly comprises a square shell (5), a third sliding column (501), a top rod (502), a third spring (503), a roller (504) and a touch plate (505), one side of the square shell (5) is fixedly connected to the first vertical support plate (2), the third sliding column (501) is fixedly connected to the inside of the square shell (5), the top rod (502) is slidably connected to the third sliding column (501), the third spring (503) is sleeved on the third sliding column (501), one end of the third spring (503) is fixedly connected to one side of the inside of the square shell (5), the other end of the third spring (503) is in contact with the top rod (502), one end of the top rod (502) is rotatably connected with the roller (504), one side of the touch plate is fixedly connected to the inner side of the blanking hopper (207), and the touch plate (505) is in contact with the roller (504).

6. The chemical fertilizer application device for agricultural farmland cultivation as claimed in claim 5, characterized in that the movable door assembly comprises two vertical support plates II (4), two sliding columns II (401), a bin gate (402) and two springs II (403), wherein the two movable door assemblies are symmetrically arranged along the bottom of the hopper (101), one ends of the vertical support plates II (4) are fixedly connected to the hopper (101), the other ends of the vertical support plates II (4) are slidably connected with the sliding columns II (401), one ends of the sliding columns II (401) are fixedly connected with the bin gate (402), the springs II (403) are sleeved on the sliding columns II (401), one ends of the springs II (403) are fixedly connected with one ends of the sliding columns II (401), and the other ends of the springs II (403) are in contact with the vertical support plates II (4).

7. The chemical fertilizer application device for agricultural farmland cultivation as claimed in claim 6, characterized in that it further comprises a fixing plate (6), a plowshare (601), an adjusting shell (602), a first pin (603) and a fourth spring (604), wherein three fixing plates (6) are provided, the fixing plates (6) are arranged at the front end of the frame (1) at intervals, one end of the adjusting shell (602) is fixedly connected to the fixing plate (6), the first pin (603) penetrates through the fixing plate (6), the plowshare (601) is provided with a plurality of round holes, the plowshare (601) is fixedly arranged on the fixing plate (6) through the first pin (603), one end of the fourth spring (604) is fixedly connected to the first pin (603), and the other end of the fourth spring (604) is fixedly connected to one side of the adjusting shell (602).

8. The fertilizer adapting device for agricultural farmland cultivation as claimed in claim 7, characterized in that it further comprises a rectangular adjusting plate (7) and a U-shaped scraper (701), pin two (702), spring five (703) and extension spring (704), rectangle accent board (7) have three groups, the one end fixed connection of rectangle accent board (7) is in the rear end of frame (1), the both ends of U type scraper blade (701) slide respectively and pass rectangle accent board (7), pin two (702) pass rectangle accent board (7), U type scraper blade (701) are fixed on rectangle accent board (7) by pin two (702), the one end and frame (1) fixed connection of spring five (703), the other end and pin two (702) fixed connection of spring five (703), the one end fixed connection of extension spring (704) is in one side of rectangle accent board (7), the other end fixed connection of extension spring (704) is on frame (1).