Four-wheel drive tiller boat with adjustable bottom plate

Abstract

The invention discloses a four-wheel drive mechanized ploughing boat with an adjustable mechanism on the bottom plate, and relates to the field of mechanized ploughing boats. The invention comprises a hull, a bottom plate adjusting mechanism, a fertilizer spreading mechanism, a plowing mechanism, a fertilizer spreading adjusting mechanism and a driving mechanism; the bottom plate adjusting mechanism and the plowing mechanism are arranged at the bottom of the hull, the plowing mechanism is connected to the bottom plate adjusting mechanism, the fertilizer spreading mechanism is arranged at one side of the hull, the fertilizer spreading adjusting mechanism is arranged at the top of the hull, the fertilizer spreading adjusting mechanism is connected to the plowing mechanism, the driving mechanism is arranged inside the hull, and the driving mechanism is connected to the fertilizer spreading mechanism, by starting the adjusting motor, the adjusting motor rotates the driving shaft, the driving shaft drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the bottom plate body to rotate the angle through the adjusting shaft, the inclination angle and height of the bottom plate body are adjusted, the bottom plate body can be adapted to uneven fields, the transition is smooth, and the farming efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of motor-tillage boats, in particular to a four-wheel drive motor-tillage boat with an adjustable bottom plate. Background Art

[0002] A tiller boat is a type of agricultural machinery that is frequently used today. It is generally used to till land in paddy fields, especially deep mud fields. A tiller boat can utilize a larger hull support area, and the traveling wheels interact with the soil to push the hull forward, with little hull sinking and little hull resistance.

[0003] The existing four-wheel drive tiller boat has the following problems during operation:

[0004] In paddy fields, if the boat encounters uneven fields, it will not be able to cross obstacles due to insufficient power, the bottom plate is too low and the boat will run aground, or the bottom plate is too high and the boat cannot float on the water, which reduces the efficiency of farming.

[0005] When the four-wheel drive tiller is plowing, when encountering land with different terrain, the plow body cannot be adjusted according to the land, resulting in poor plowing effect, high plowing difficulty and poor adaptability;

[0006] When the four-wheel drive tiller is working, if there is a lot of mud in the paddy field, the amount of fertilizer should be increased to balance the fertility of the field. The existing tiller cannot adjust the amount of fertilizer well to adapt to different environments, resulting in poor farming effects. Summary of the invention

[0007] The purpose of the present invention is to provide a four-wheel drive tiller boat with a bottom plate having an adjustable mechanism, and to provide a four-wheel drive tiller boat with improved tillage efficiency, improved tillage effect and reduced difficulty in plowing.

[0008] The present invention is a four-wheel drive tillage boat with an adjustable bottom plate, comprising a boat body, a bottom plate adjustment mechanism, a fertilizer spreading mechanism, a plowing mechanism, a fertilizer spreading adjustment mechanism and a driving mechanism;

[0009] The bottom plate adjustment mechanism and the plowing mechanism are arranged at the bottom of the hull, the plowing mechanism is connected to the bottom plate adjustment mechanism, the fertilizer spreading mechanism is arranged at one side of the hull, the fertilizer spreading adjustment mechanism is arranged on the top of the hull, the fertilizer spreading adjustment mechanism is connected to the plowing mechanism, the driving mechanism is arranged inside the hull, and the driving mechanism is connected to the fertilizer spreading mechanism.

[0010] The bottom plate adjustment mechanism comprises an adjustment motor, a drive shaft, a drive gear, a driven gear, an adjustment shaft and a bottom plate body, wherein the adjustment motor is arranged at the bottom of the hull, one end of the drive shaft is connected to the output end of the adjustment motor, the drive gear and the driven gear are movably arranged at one side inside the hull, the other end of the drive shaft is connected to the drive gear, the drive gear is meshed with the driven gear, one end of the adjustment shaft is connected to the driven gear, and the other end of the adjustment shaft is connected to the bottom plate body;

[0011] Among them, the adjusting motor is a double-headed motor, and the driving shaft, driving gear, driven gear and adjusting shaft are arranged in two groups, each arranged on both sides of the hull.

[0012] The fertilizer spreading mechanism includes a fertilizer spreading bucket, a rotating shaft, fertilizer spreading blades, a connecting pipe and a fertilizer storage box. The fertilizer spreading bucket is arranged at the rear side of the hull, the rotating shaft is movably arranged inside the fertilizer spreading bucket, the fertilizer spreading blades are arranged on the rotating shaft, the fertilizer spreading blades are adapted to the inner wall of the fertilizer spreading bucket, the fertilizer storage box is arranged on the fertilizer spreading bucket, one end of the connecting pipe is communicated with the fertilizer spreading bucket, and the other end of the connecting pipe is communicated with the fertilizer storage box, and a fertilizer outlet is arranged at the bottom of the fertilizer spreading bucket.

[0013] The plowing mechanism includes a driving pulley, a driven pulley, an adjusting gear, an adjusting rack, a connector, an adjusting rod, a sliding groove and a plow body, the driving pulley is arranged on the driving shaft, the adjusting gear is movably arranged on one side inside the hull, the driven pulley is connected to the adjusting gear, the adjusting rack is movably arranged on one side inside the hull, the adjusting rack is meshed with the adjusting gear, the sliding groove is arranged at the bottom of the hull, the plow body is movably arranged in the sliding groove, the adjusting rod is arranged on the top of the plow body, one end of the connector is connected to the adjusting rack, one end of the connector is connected to the adjusting rack, and the other end of the connector is connected to the adjusting rod.

[0014] The fertilizer spreading adjustment mechanism includes a connecting plate, a connecting shaft movable plug and a discharge port. The movable plug is movably arranged in a connecting pipe. One end of the connecting shaft is connected to the movable plug, and the other end of the connecting shaft is connected to the connecting plate. The connecting plate is also connected to the adjusting rod. The movable plug is provided with a discharge port, and the fertilizer spreading bucket is connected to the connecting pipe through the discharge port.

[0015] The driving mechanism includes a driving motor, a first power output shaft, a second power output shaft, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear and a driving wheel. The driving motor is arranged inside the hull, the first power output shaft and the second power output shaft are both connected to the output end of the driving motor, the first bevel gear is arranged on the first power output shaft, the second bevel gear is arranged on the second power output shaft, the third bevel gear is movably arranged on one side of the hull, the third bevel gear is meshed with the first bevel gear, the fourth bevel gear is movably arranged on one side of the hull, the fourth bevel gear is meshed with the second bevel gear, and several of the driving wheels are respectively connected to the third bevel gear and the fourth bevel gear.

[0016] The fertilizer spreading mechanism further includes a fifth bevel gear and a sixth bevel gear, wherein the fifth bevel gear is arranged on the first power output shaft, the sixth bevel gear is connected to the rotating shaft, and the fifth bevel gear is meshed with the sixth bevel gear.

[0017] Seats are arranged inside the hull.

[0018] The present invention has the following beneficial effects:

[0019] The present invention starts an adjusting motor, which causes the driving shaft to rotate, the driving shaft drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the base plate body to rotate through the adjusting shaft, and the inclination angle and height of the base plate body are adjusted. The present invention can adapt to uneven fields, smoothly transition, and improve farming efficiency.

[0020] The present invention drives the driven pulley to rotate through the transmission belt via the driving pulley, the driven pulley rotates the adjusting gear connected thereto, the adjusting gear drives the adjusting rack to perform lifting movements, the adjusting rack is connected to the adjusting rod, and the adjusting rod can drive the plow body to perform lifting movements in the sliding groove. When the ground in the field is convex, the plow body will be driven to rise, and when the ground in the field is concave, the plow body will be driven to fall. By combining with the adjusting base plate body in a concave and convex environment, the plowing effect is improved, the difficulty of plowing is reduced, and the adaptability is good.

[0021] The present invention adjusts the motor to rotate the drive shaft during the process of adjusting the base plate body, and the drive pulley on the drive shaft also rotates accordingly, and the adjustment motor drives them together, thereby improving the synchronization of the adjustment of the plowing land and the base plate body.

[0022] The present invention drives the connecting shaft to perform lifting movement through the connecting plate, and then the movable plug moves in the connecting pipe, and the amount of fertilizer entering the fertilizer spreading barrel is adjusted by the size of the leakage outlet, so as to control the fertilizer spreading amount, make the fertilizer spreading amount adapt to different environments, and improve the farming efficiency.

[0023] The present invention improves synchronization by adjusting the motor to rotate the driving shaft during the process of adjusting the height of the plow body, and adjusting the bottom plate body, adjusting the height of the plow body and adjusting the fertilizer spreading amount during the process of lifting and lowering the adjusting rod.

[0024] The present invention puts fertilizer into a fertilizer storage box, and the fertilizer in the fertilizer storage box enters into a fertilizer spreading barrel through a connecting pipe. During the movement of the mechanized tiller boat, the first power output shaft rotates, driving the fifth bevel gear to rotate, and the sixth bevel gear drives the rotating shaft to rotate, the rotating shaft rotates the fertilizer spreading blades, and the fertilizer in the fertilizer spreading barrel is transferred to the fertilizer outlet, and falls into the field from the fertilizer outlet. The movement of the mechanized tiller boat and the fertilizer spreading are combined, and fertilizer is applied while moving, thereby improving the fertilization efficiency.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a first three-dimensional structural schematic diagram of a four-wheel drive tiller boat with an adjustable bottom plate according to the present invention;

[0028] Figure 2 It is a front view structural schematic diagram of a four-wheel drive tiller boat with an adjustable bottom plate according to the present invention;

[0029] Figure 3 It is a second three-dimensional structural schematic diagram of a four-wheel drive tiller boat with an adjustable bottom plate according to the present invention;

[0030] Figure 4 It is a top view structural schematic diagram of a four-wheel drive tiller boat with an adjustable bottom plate according to the present invention;

[0031] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at AA in the middle;

[0032] Figure 6 For the present invention Figure 4 Schematic diagram of the structure at the middle BB;

[0033] Figure 7 For the present invention Figure 1 A partial enlarged view of point B in the middle;

[0034] Figure 8 For the present invention Figure 3 A partial enlarged view of point D in the middle;

[0035] Fig. 9 For the present invention Figure 6 A partial enlarged view of point E in the middle;

[0036] Fig.10 For the present invention Figure 6 A partial enlarged view of point F in the middle.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 110, hull; 120, bottom plate adjustment mechanism; 1201, adjustment motor; 1202, drive shaft; 1203, drive gear; 1204, driven gear; 1205, adjustment shaft; 1206, bottom plate body; 130, fertilizer spreading mechanism; 1301, fertilizer spreading bucket; 1302, rotating shaft; 1303, fertilizer spreading blade; 1304, connecting pipe; 1305, fertilizer storage box; 1306, fertilizer outlet; 1307, fifth bevel gear; 1308, sixth bevel gear; 140, plowing mechanism; 1401, driving pulley; 1 402, driven pulley; 1403, adjusting gear; 1404, adjusting rack; 150, fertilizer spreading adjustment mechanism; 1501, connecting plate; 1502, connecting shaft; 1503, movable plug; 1504, discharge port; 160, driving mechanism; 1601, driving motor; 1602, first power output shaft; 1603, second power output shaft; 1604, first bevel gear; 1605, second bevel gear; 1606, third bevel gear; 1607, fourth bevel gear; 1608, driving wheel; 210, seat. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0041] like Figure 1-10As shown, this embodiment lists a four-wheel drive tillage boat with an adjustable bottom plate mechanism, including a hull 110, a bottom plate adjustment mechanism 120, a fertilizer spreading mechanism 130, a plowing mechanism 140, a fertilizer spreading adjustment mechanism 150 and a driving mechanism 160;

[0042] The bottom plate adjusting mechanism 120 and the plowing mechanism 140 are arranged at the bottom of the hull 110, and the plowing mechanism 140 is connected to the bottom plate adjusting mechanism 120. The fertilizer spreading mechanism 130 is arranged on one side of the hull 110. The fertilizer spreading adjusting mechanism 150 is arranged on the top of the hull 110, and the fertilizer spreading adjusting mechanism 150 is connected to the plowing mechanism 140. The driving mechanism 160 is arranged inside the hull 110, and the driving mechanism 160 is connected to the fertilizer spreading mechanism 130.

[0043] The bottom plate adjustment mechanism 120 includes an adjustment motor 1201, a drive shaft 1202, a drive gear 1203, a driven gear 1204, an adjustment shaft 1205 and a bottom plate body 1206. The adjustment motor 1201 is arranged at the bottom of the hull 110. One end of the drive shaft 1202 is connected to the output end of the adjustment motor 1201. The drive gear 1203 and the driven gear 1204 are movably arranged at one side inside the hull 110. The other end of the drive shaft 1202 is connected to the drive gear 1203. The drive gear 1203 is meshed with the driven gear 1204. One end of the adjustment shaft 1205 is connected to the driven gear 1204. The other end of the adjustment shaft 1205 is connected to the bottom plate body 1206.

[0044] The regulating motor 1201 is a double-headed motor, and the driving shaft 1202, the driving gear 1203, the driven gear 1204 and the regulating shaft 1205 are each provided in two groups, each being provided on both sides of the hull 110;

[0045] During operation, by starting the adjusting motor 1201, the adjusting motor 1201 causes the driving shaft 1202 to rotate, the driving shaft 1202 drives the driving gear 1203 to rotate, the driving gear 1203 drives the driven gear 1204 to rotate, the driven gear 1204 drives the rotation angle of the base plate body 1206 through the adjusting shaft 1205, and the inclination angle and height of the base plate body 1206 are adjusted to adapt to uneven fields, smoothly transition, and improve farming efficiency.

[0046] The fertilizer spreading mechanism 130 includes a fertilizer spreading bucket 1301, a rotating shaft 1302, a fertilizer spreading blade 1303, a connecting pipe 1304 and a fertilizer storage box 1305. The fertilizer spreading bucket 1301 is arranged at the rear side of the hull 110, the rotating shaft 1302 is movably arranged inside the fertilizer spreading bucket 1301, the fertilizer spreading blade 1303 is arranged on the rotating shaft 1302, the fertilizer spreading blade 1303 is adapted to the inner wall of the fertilizer spreading bucket 1301, the fertilizer storage box 1305 is arranged on the fertilizer spreading bucket 1301, one end of the connecting pipe 1304 is connected to the fertilizer spreading bucket 1301, and the other end of the connecting pipe 1304 is connected to the fertilizer storage box 1305, and a fertilizer outlet 1306 is arranged at the bottom of the fertilizer spreading bucket 1301;

[0047] During operation, fertilizer is put into the fertilizer storage box 1305, and the fertilizer in the fertilizer storage box 1305 enters the fertilizer spreading barrel 1301 through the connecting pipe 1304. During the movement of the mechanized tiller boat, the first power output shaft 1602 rotates, driving the fifth bevel gear 1307 to rotate, and driving the rotating shaft 1302 to rotate through the sixth bevel gear 1308. The rotating shaft 1302 rotates the fertilizer spreading blade 1303, and the fertilizer in the fertilizer spreading barrel 1301 is transferred to the fertilizer outlet 1306, and falls into the field from the fertilizer outlet 1306. The movement of the mechanized tiller boat and the fertilizer spreading are combined, and fertilizer is applied while moving, thereby improving the fertilization efficiency.

[0048] The plowing mechanism 140 includes a driving pulley 1401, a driven pulley 1402, an adjusting gear 1403, an adjusting rack 1404, a connector, an adjusting rod, a sliding groove and a plow body, wherein the driving pulley 1401 is arranged on the driving shaft 1202, the adjusting gear 1403 is movably arranged on one side inside the hull 110, the driven pulley 1402 is connected to the adjusting gear 1403, the adjusting rack 1404 is movably arranged on one side inside the hull 110, the adjusting rack 1404 is meshed with the adjusting gear 1403, the sliding groove is arranged at the bottom of the hull 110, the plow body is movably arranged in the sliding groove, the adjusting rod is arranged at the top of the plow body, one end of the connector is connected to the adjusting rack 1404, one end of the connector is connected to the adjusting rack 1404, and the other end of the connector is connected to the adjusting rod;

[0049] When working, the driving pulley 1401 drives the driven pulley 1402 to rotate through the transmission belt, and the driven pulley 1402 rotates the adjusting gear 1403 connected thereto, and the adjusting gear 1403 drives the adjusting rack 1404 to perform lifting and lowering movements. The adjusting rack 1404 is connected to the adjusting rod, and can drive the plow body to perform lifting and lowering movements in the sliding groove through the adjusting rod. When the ground in the field is convex, it will drive the plow body to rise, and when the ground in the field is concave, it will drive the plow body to fall. By combining with the adjusting bottom plate body 1206 in a concave and convex environment, the plowing effect is improved, the difficulty of plowing is reduced, and the adaptability is good.

[0050] Moreover, during the process of adjusting the base plate body 1206, the motor 1201 is adjusted to rotate the drive shaft 1202, and the drive pulley 1401 on the drive shaft 1202 also rotates accordingly, and the synchronization of the adjustment of the plowing land and the base plate body 1206 is improved by driving together the motor 1201.

[0051] The fertilizer spreading adjustment mechanism 150 includes a connecting plate 1501, a connecting shaft 1502, a movable plug 1503 and a discharge port 1504. The movable plug 1503 is movably arranged in the connecting pipe 1304. One end of the connecting shaft 1502 is connected to the movable plug 1503, and the other end of the connecting shaft 1502 is connected to the connecting plate 1501. The connecting plate 1501 is also connected to the adjustment rod. The discharge port 1504 is arranged on the movable plug 1503. The fertilizer spreading bucket 1301 is connected to the connecting pipe 1304 through the discharge port 1504.

[0052] When working, the connecting plate 1501 drives the connecting shaft 1502 to move up and down, and then the movable plug 1503 moves in the connecting pipe 1304, and adjusts the amount of fertilizer entering the fertilizer barrel 1301 by the size of the leakage outlet 1504, thereby controlling the fertilizer spreading amount, making the fertilizer spreading amount adaptable to different environments, and improving the farming efficiency;

[0053] Moreover, during the process of adjusting the height of the plow body, the motor 1201 is adjusted to rotate the drive shaft 1202, and during the process of raising and lowering the adjusting rod, the base plate body 1206, the height of the plow body, and the amount of fertilizer spread are adjusted simultaneously, thereby improving synchronization.

[0054] The driving mechanism 160 includes a driving motor 1601, a first power output shaft 1602, a second power output shaft 1603, a first bevel gear 1604, a second bevel gear 1605, a third bevel gear 1606, a fourth bevel gear 1607 and a driving wheel 1608. The driving motor 1601 is arranged inside the hull 110, the first power output shaft 1602 and the second power output shaft 1603 are both connected to the output end of the driving motor 1601, and the first bevel gear 1604 is arranged at the first bevel gear 1604. A second bevel gear 1605 is arranged on a power output shaft 1602, a second bevel gear 1605 is arranged on a second power output shaft 1603, a third bevel gear 1606 is movably arranged on one side of the hull 110, the third bevel gear 1606 is meshed with the first bevel gear 1604, a fourth bevel gear 1607 is movably arranged on one side of the hull 110, the fourth bevel gear 1607 is meshed with the second bevel gear 1605, and a plurality of driving wheels 1608 are respectively connected to the third bevel gear 1606 and the fourth bevel gear 1607.

[0055] The fertilizer spreading mechanism 130 further includes a fifth bevel gear 1307 and a sixth bevel gear 1308 . The fifth bevel gear 1307 is disposed on the first power output shaft 1602 . The sixth bevel gear 1308 is connected to the rotating shaft 1302 . The fifth bevel gear 1307 and the sixth bevel gear 1308 are meshed with each other.

[0056] Seats 210 are provided inside the hull 110 .

[0057] The working steps of a four-wheel drive tiller boat with an adjustable bottom plate of the present invention are as follows:

[0058] Machine boat operation:

[0059] The driving motor 1601 is started, and the driving motor 1601 drives the first power output shaft 1602 and the second power output shaft 1603 to rotate, and through the meshing of the first bevel gear 1604 and the third bevel gear 1606 and the meshing of the second bevel gear 1605 and the fourth bevel gear 1607, the rotation direction is changed, and the four driving wheels 1608 are driven to rotate, and the hull 110 is driven to move;

[0060] Spreading fertilizer:

[0061] Fertilizer is put into the fertilizer storage box 1305, and the fertilizer in the fertilizer storage box 1305 enters the fertilizer spreading barrel 1301 through the connecting pipe 1304. When the tiller boat moves, the first power output shaft 1602 rotates, driving the fifth bevel gear 1307 to rotate, and driving the rotating shaft 1302 to rotate through the sixth bevel gear 1308. The rotating shaft 1302 rotates the fertilizer spreading blade 1303, and the fertilizer in the fertilizer spreading barrel 1301 is transferred to the fertilizer outlet 1306, and falls into the field from the fertilizer outlet 1306;

[0062] Adjust the bottom plate body 1206:

[0063] The adjusting motor 1201 is started, and the adjusting motor 1201 rotates the driving shaft 1202, and the driving shaft 1202 drives the driving gear 1203 to rotate, and the driving gear 1203 drives the driven gear 1204 to rotate, and the driven gear 1204 drives the bottom plate body 1206 to rotate through the adjusting shaft 1205, so as to adjust the inclination angle and height of the bottom plate body 1206;

[0064] Adjust the height of the plow body:

[0065] In the process of adjusting the bottom plate body 1206, the adjusting motor 1201 rotates the driving shaft 1202, and the driving pulley 1401 on the driving shaft 1202 also rotates accordingly. The driving pulley 1401 drives the driven pulley 1402 to rotate through the transmission belt, and the driven pulley 1402 rotates the adjusting gear 1403 connected thereto, and the adjusting gear 1403 drives the adjusting rack 1404 to perform lifting and lowering movements. The adjusting rack 1404 is connected to the adjusting rod, and can drive the plow body to perform lifting and lowering movements in the sliding groove through the adjusting rod. When the ground in the field is convex, it will drive the plow body to rise, and when the ground in the field is concave, it will drive the plow body to fall;

[0066] Adjust the amount of fertilizer spread:

[0067] In the process of adjusting the height of the plow body, the motor 1201 is adjusted to rotate the drive shaft 1202. When the adjusting rod is lifted or lowered, the connecting shaft 1502 is driven to lift or lower through the connecting plate 1501. Then the movable plug 1503 moves in the connecting pipe 1304 and adjusts the amount of fertilizer entering the fertilizer barrel 1301 by the size of the discharge port 1504, thereby controlling the amount of fertilizer spread.

[0068] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A four-wheel drive tiller boat with an adjustable bottom plate, characterized in that: It comprises a hull (110), a bottom plate adjustment mechanism (120), a fertilizer spreading mechanism (130), a plowing mechanism (140), a fertilizer spreading adjustment mechanism (150) and a driving mechanism (160); The bottom plate adjustment mechanism (120) and the plowing mechanism (140) are arranged at the bottom of the hull (110), the plowing mechanism (140) is connected to the bottom plate adjustment mechanism (120), the fertilizer spreading mechanism (130) is arranged on one side of the hull (110), the fertilizer spreading adjustment mechanism (150) is arranged on the top of the hull (110), the fertilizer spreading adjustment mechanism (150) is connected to the plowing mechanism (140), and the driving mechanism (160) is arranged inside the hull (110), and the driving mechanism (160) is connected to the fertilizer spreading mechanism (130); The bottom plate adjustment mechanism (120) comprises an adjustment motor (1201), a drive shaft (1202), a drive gear (1203), a driven gear (1204), an adjustment shaft (1205) and a bottom plate body (1206); the adjustment motor (1201) is arranged at the bottom of the hull (110); one end of the drive shaft (1202) is connected to the output end of the adjustment motor (1201); the drive gear (1203) and the driven gear (1204) are movably arranged on one side inside the hull (110); the other end of the drive shaft (1202) is connected to the drive gear (1203); the drive gear (1203) is meshed with the driven gear (1204); one end of the adjustment shaft (1205) is connected to the driven gear (1204); and the other end of the adjustment shaft (1205) is connected to the bottom plate body (1206); The fertilizer spreading mechanism (130) comprises a fertilizer spreading bucket (1301), a rotating shaft (1302), a fertilizer spreading blade (1303), a connecting pipe (1304) and a fertilizer storage box (1305); the fertilizer spreading bucket (1301) is arranged at the rear side of the hull (110); the rotating shaft (1302) is movably arranged inside the fertilizer spreading bucket (1301); the fertilizer spreading blade (1303) is arranged on the rotating shaft (1302); the fertilizer spreading blade (1303) is adapted to the inner wall of the fertilizer spreading bucket (1301); the fertilizer storage box (1305) is arranged on the fertilizer spreading bucket (1301); one end of the connecting pipe (1304) is communicated with the fertilizer spreading bucket (1301); the other end of the connecting pipe (1304) is communicated with the fertilizer storage box (1305); and a fertilizer outlet (1306) is arranged at the bottom of the fertilizer spreading bucket (1301); The plowing mechanism (140) comprises a driving pulley (1401), a driven pulley (1402), an adjusting gear (1403), an adjusting rack (1404), a connector, an adjusting rod, a sliding groove and a plow body, wherein the driving pulley (1401) is arranged on the driving shaft (1202), the adjusting gear (1403) is movably arranged on one side inside the hull (110), the driven pulley (1402) is connected to the adjusting gear (1403), the adjusting rack (1404) is movably arranged on one side inside the hull (110), the adjusting rack (1404) is meshed with the adjusting gear (1403), the sliding groove is arranged at the bottom of the hull (110), the plow body is movably arranged in the sliding groove, the adjusting rod is arranged at the top of the plow body, one end of the connector is connected to the adjusting rack (1404), one end of the connector is connected to the adjusting rack (1404), and the other end of the connector is connected to the adjusting rod; The fertilizer spreading adjustment mechanism (150) comprises a connecting plate (1501), a connecting shaft (1502), a movable plug (1503) and a discharge port (1504); the movable plug (1503) is movably arranged in a connecting pipe (1304); one end of the connecting shaft (1502) is connected to the movable plug (1503); the other end of the connecting shaft (1502) is connected to the connecting plate (1501); the connecting plate (1501) is also connected to an adjustment rod; the movable plug (1503) is provided with a discharge port (1504); the fertilizer spreading bucket (1301) is connected to the connecting pipe (1304) via the discharge port (1504); The driving mechanism (160) comprises a driving motor (1601), a first power output shaft (1602), a second power output shaft (1603), a first bevel gear (1604), a second bevel gear (1605), a third bevel gear (1606), a fourth bevel gear (1607) and a driving wheel (1608); the driving motor (1601) is arranged inside the hull (110); the first power output shaft (1602) and the second power output shaft (1603) are both connected to the output end of the driving motor (1601); the first bevel gear (1604) is arranged at the first The power output shaft (1602) is provided on the second power output shaft (1603); the third bevel gear (1606) is movably provided on one side of the hull (110); the third bevel gear (1606) is meshed with the first bevel gear (1604); the fourth bevel gear (1607) is movably provided on one side of the hull (110); the fourth bevel gear (1607) is meshed with the second bevel gear (1605); and a plurality of driving wheels (1608) are respectively connected to the third bevel gear (1606) and the fourth bevel gear (1607); The fertilizer spreading mechanism (130) further comprises a fifth bevel gear (1307) and a sixth bevel gear (1308), wherein the fifth bevel gear (1307) is arranged on the first power output shaft (1602), the sixth bevel gear (1308) is connected to the rotating shaft (1302), and the fifth bevel gear (1307) is meshed with the sixth bevel gear (1308).

2. A four-wheel drive tiller boat with an adjustable bottom plate according to claim 1, characterized in that: A seat (210) is arranged inside the hull (110).

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