Wheel type tractor with adjustable ground clearance

Abstract

The invention belongs to the field of wheeled tractors, particularly relates to a wheeled tractor with an adjustable ground clearance, and aims to solve the problems that an existing pesticide spraying mechanism is inconvenient to adjust and cannot meet different pesticide spraying requirements. The supporting rods are fixedly mounted on the wheeled tractor body, and the same mounting plate is fixedly mounted at the top ends of the supporting rods; the rotating hole is formed in the mounting plate, and a rotating shaft is rotationally mounted in the rotating hole; according to the pesticide spraying device, the ground clearance between the first spray head and the second spray head can be adjusted, a second hollow plate and a third hollow plate can be opened, the spraying range can be widened, the angle of the second hollow plate and the angle of the third hollow plate can be adjusted, and then pesticide liquid can be sprayed to the two sides; in addition, the spraying angles of the multiple first spraying heads and the multiple second spraying heads can be adjusted, and different spraying requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of wheeled tractors, and in particular to a wheeled tractor with adjustable ground clearance. Background Art

[0002] Wheeled tractor is a type of tractor, that is, a tractor with wheels as the running gear. (Different from crawler tractors) There are many types such as two-wheel (walk-behind tractors) and four-wheel. It is also divided into rear-wheel drive and four-wheel drive. High-horsepower wheeled tractors have better traction performance and are suitable for large farms equipped with wide-width agricultural implements for high-speed operation; In the prior art, wheeled tractors are equipped with a spraying mechanism for spraying pesticides in fields, but the spraying mechanism is not easy to adjust and cannot meet different spraying needs. Therefore, we propose a wheeled tractor with adjustable ground clearance to solve the above problem. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art that the spraying mechanism is not easy to adjust and cannot meet different spraying requirements, and to propose a wheeled tractor with adjustable ground clearance.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A wheeled tractor with adjustable ground clearance, comprising: Wheel tractor body; A plurality of support rods are fixedly mounted on the wheeled tractor body, and a same mounting plate is fixedly mounted on the top ends of the plurality of support rods; A rotating hole is provided on the mounting plate, and a rotating shaft is rotatably mounted in the rotating hole; Two vertical plates are fixedly mounted on the rotating shaft, and the bottoms of the two vertical plates are provided with moving grooves; Two lifting rods are slidably mounted on the two moving grooves respectively, and a plurality of first locking grooves are provided on the outer sides of the two lifting rods; A locking mechanism, provided on the two vertical plates, for cooperating with the first locking groove to lock the lifting rod; A rotating mechanism, disposed on the mounting plate, for rotating the rotating shaft; The first hollow plate is fixedly mounted on the bottom of the two lifting rods; The two first fixing blocks and the second fixing block located below the two first fixing blocks are both fixedly mounted on one side of the first hollow plate; Two rotating grooves are arranged at the top of the two second fixed blocks, and rotating columns are rotatably installed in the two rotating grooves. Through holes are opened on the two first fixed blocks, and the top ends of the two rotating columns respectively penetrate the two through holes and are fixedly installed with circular blocks, and multiple second locking grooves are opened on the outer sides of the two circular blocks; A fixing mechanism, provided on the two first fixing blocks, for cooperating with the second locking groove to lock the circular block; Two connecting seats are fixedly mounted on two rotating columns respectively, one side of the two connecting seats is provided with a rotating groove, the two rotating grooves are rotatably mounted with connecting shafts, one end of the two connecting shafts is fixedly mounted with a second hollow plate and a third hollow plate, the bottom of the first hollow plate is fixedly connected with a plurality of first nozzles, and the bottoms of the second hollow plate and the third hollow plate are fixedly connected with a plurality of second nozzles; A medicine liquid conveying mechanism is arranged on the mounting plate and is used for conveying medicine liquid into the first hollow plate, the second hollow plate and the third hollow plate. The medicine liquid conveying mechanism includes a plurality of positioning rods fixedly mounted on the top of the mounting plate, a same limiting frame is fixedly mounted on the top of the plurality of positioning rods, a medicine liquid tank is arranged on the inner side of the limiting frame, and a liquid filling port is arranged on the medicine liquid tank, a conveying pump is fixedly mounted on the top of the mounting plate, a water inlet of the conveying pump is fixedly connected to one end of a liquid extraction pipe, and the other end of the liquid extraction pipe is fixedly connected to the medicine liquid tank, a water outlet of the conveying pump is fixedly connected to a hollow block, and three diversion ports are fixedly connected to the hollow block, and the three diversion ports are all provided with solenoid valves, and the three diversion ports are fixedly connected to one end of a hose, and the other ends of the three hoses are respectively fixedly connected to the first hollow plate, the second hollow plate and the third hollow plate.

[0005] The locking mechanism includes a pull plate, two locking rods are fixedly installed on one side of the pull plate, one end of the two locking rods are respectively clamped in the corresponding two first locking grooves, one side of the two vertical plates is provided with a sliding hole, the sliding hole is connected to the movable groove, the outer side of the locking rod is slidably connected to the inner wall of the sliding hole, one side of the two vertical plates is fixedly installed with a bearing plate, one side of the two bearing plates is fixedly installed with a first spring, and one end of the two first springs is fixedly connected to the pull plate.

[0006] The rotating mechanism includes a first fixed plate fixedly mounted on one side of the mounting plate, a second fixed plate fixedly mounted on one side of the first fixed plate, a motor fixedly mounted on one side of the second fixed plate, a driving gear fixedly mounted on the output shaft of the motor, a driven gear meshed with the driving gear, and the driven gear fixedly sleeved on the outer side of the rotating shaft.

[0007] The fixing mechanism includes two rectangular plates, one side of the two rectangular plates is fixedly installed with a reset plate, one side of the two reset plates is fixedly installed with an insertion rod, one end of the insertion rod is clamped with the corresponding second locking groove, one side of the first fixing block is provided with a rectangular groove, the rectangular plate is slidably installed in the rectangular groove, a second spring is fixedly installed on the inner wall of one side of the rectangular groove, one end of the second spring is fixedly connected to the other side of the rectangular plate, a plurality of third locking grooves distributed in an annular manner are provided on the outer sides of the two connecting shafts, one side of the two connecting seats is fixedly installed with a mounting block, the two mounting blocks are threadedly installed with locking bolts, and one end of the locking bolts is threadedly connected to the corresponding third locking groove.

[0008] In the present invention, the wheeled tractor with adjustable ground clearance has the following beneficial effects: The pull plate stretches the first spring, and at the same time drives the two locking rods to disengage from the two first locking grooves, thereby releasing the fixation of the two lifting rods. At this time, the first hollow plate can be vertically moved to adjust the ground clearance of the first nozzle and the second nozzle. After the adjustment, the pull plate is released, and the first spring is reset, so that the locking rods are stuck in the corresponding first locking grooves to fix the lifting rods. Pull the reset plate, the reset plate drives the insertion rod and the rectangular plate to move, the rectangular plate stretches the second spring, the insertion rod disengages from the second locking groove, and the fixation of the circular block is released, so that the rotating column can rotate, and the second hollow plate can be flipped open at this time, and then the third hollow plate can be flipped open in the same way. By opening the second hollow plate and the third hollow plate, the spraying range can be increased, and then the delivery pump is started to extract the liquid medicine in the liquid medicine tank through the liquid extraction pipe. The liquid medicine enters the hollow block, and then is diverted through three diversion ports, and enters the first hollow plate, the second hollow plate and the third hollow plate from three hoses. Finally, the liquid medicine is sprayed to the ground from multiple first nozzles and multiple second nozzles; When it is necessary to spray the side, the second hollow plate and the third hollow plate are flipped open 90°, and then the locking bolt is loosened to separate the locking bolt from the third locking groove, the lock on the connecting shaft is released, and then the second hollow plate and the third hollow plate are flipped so that the second nozzles on the second hollow plate and the third hollow plate are aimed at the side, and then a solenoid valve is closed so that the liquid medicine will not enter the first hollow plate, thereby achieving spraying of the liquid medicine on both sides.

[0009] When spraying liquid medicine on the ground, the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the rotating shaft to rotate, and the rotating shaft drives the two vertical plates to flip, thereby adjusting the spraying angles of the multiple first nozzles and the multiple second nozzles to meet different spraying requirements; The present invention can adjust the ground clearance of the first nozzle and the second nozzle, open the second hollow plate and the third hollow plate, increase the spraying range, adjust the angle of the second hollow plate and the third hollow plate, thereby spraying liquid on both sides, and adjust the spraying angles of multiple first nozzles and multiple second nozzles to meet different spraying needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic structural diagram of a wheeled tractor with adjustable ground clearance proposed by the present invention; Figure 2 A schematic diagram of the three-dimensional structure of a wheeled tractor with adjustable ground clearance from a first viewing angle proposed by the present invention; Figure 3A schematic diagram of the three-dimensional structure of a wheeled tractor with adjustable ground clearance from a second viewing angle proposed by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of a wheeled tractor with adjustable ground clearance proposed by the present invention from a third viewing angle; Figure 5 A wheeled tractor with adjustable ground clearance proposed by the present invention Figure 1 A schematic diagram of the enlarged structure of part A; Figure 6 A wheeled tractor with adjustable ground clearance proposed by the present invention Figure 1 A schematic diagram of the enlarged structure of part B; Figure 7 A wheeled tractor with adjustable ground clearance proposed by the present invention Figure 2 A schematic diagram of the enlarged structure of the middle C part; Figure 8 A wheeled tractor with adjustable ground clearance proposed by the present invention Figure 3 A schematic diagram of the enlarged structure of the D part; Fig. 9 A schematic structural diagram of a connecting portion of a first hollow plate, a second hollow plate and a third hollow plate of a wheeled tractor with adjustable ground clearance proposed by the present invention; Fig.10 A schematic structural diagram of a pull plate and a locking rod of a wheeled tractor with adjustable ground clearance proposed by the present invention; Fig.11 A schematic structural diagram of a circular block and a plug rod of a wheeled tractor with adjustable ground clearance proposed by the present invention; Fig.12 A schematic structural diagram of a hollow block, a diversion port and a solenoid valve of a wheeled tractor with adjustable ground clearance proposed by the present invention; Fig.13 A schematic structural diagram of a vertical plate and a locking rod of a wheeled tractor with adjustable ground clearance proposed by the present invention; Fig.14 This is a schematic structural diagram of a rotating column, a connecting seat and a connecting shaft of a wheeled tractor with adjustable ground clearance proposed by the present invention; Fig.15 The present invention is a schematic structural diagram of a mounting plate and a rotating shaft of a wheeled tractor with adjustable ground clearance.

[0011] In the figure: 1, wheeled tractor body; 2, support rod; 3, mounting plate; 4, limiting frame; 5, liquid tank; 6, liquid filling port; 7, delivery pump; 8, liquid extraction pipe; 9, hollow block; 10, diversion port; 11, solenoid valve; 12, rotating shaft; 13, vertical plate; 14, driven gear; 15, first fixed plate; 16, second fixed plate; 17, motor; 18, driving gear; 19, lifting rod; 20, first locking groove; 21, pull plate; 22, locking rod; 23, bearing plate; 24, first spring; 25, sliding hole; 26, first hollow plate; 27, first fixed plate Fixed block; 28, rotating column; 29, connecting seat; 30, rotating groove; 31, connecting shaft; 32, second hollow plate; 33, second nozzle; 34, first nozzle; 35, circular block; 36, second locking groove; 37, rectangular groove; 38, rectangular plate; 39, reset plate; 40, plug rod; 41, third locking groove; 42, mounting block; 43, locking bolt; 44, rotating hole; 45, positioning rod; 46, rotating groove; 47, mounting seat; 48, buffer shaft; 49, seat plate; 50, backrest; 51, second fixed block; 52, movable groove; 53, third hollow plate. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0013] Reference Figure 1-Figure 15 , a wheeled tractor with adjustable ground clearance, comprising: Wheeled tractor body 1; A plurality of support rods 2 are fixedly mounted on the wheeled tractor body 1, and a same mounting plate 3 is fixedly mounted on the top ends of the plurality of support rods 2; A rotating hole 44 is provided on the mounting plate 3, and a rotating shaft 12 is rotatably mounted in the rotating hole 44; Two vertical plates 13 are fixedly mounted on the rotating shaft 12, and the bottoms of the two vertical plates 13 are provided with moving grooves 52; Two lifting rods 19 are slidably mounted on the two moving grooves 52 respectively, and a plurality of first locking grooves 20 are formed on the outer sides of the two lifting rods 19; The locking mechanism is provided on the two vertical plates 13 and is used to cooperate with the first locking groove 20 to lock the lifting rod 19; A rotating mechanism, provided on the mounting plate 3, for rotating the rotating shaft 12; The first hollow plate 26 is fixedly mounted on the bottom of the two lifting rods 19; The two first fixing blocks 27 and the second fixing block 51 located below the two first fixing blocks 27 are both fixedly mounted on one side of the first hollow plate 26; Two rotating grooves 46 are provided at the tops of the two second fixed blocks 51. The rotating columns 28 are rotatably installed in the two rotating grooves 46. The two first fixed blocks 27 are provided with through holes. The tops of the two rotating columns 28 respectively penetrate the two through holes and are fixedly installed with circular blocks 35. The outer sides of the two circular blocks 35 are provided with a plurality of second locking grooves 36. A fixing mechanism, provided on the two first fixing blocks 27, for cooperating with the second locking groove 36 to lock the circular block 35; Two connecting seats 29 are fixedly mounted on two rotating columns 28, respectively. A rotating groove 30 is provided on one side of the two connecting seats 29. A connecting shaft 31 is rotatably mounted in the two rotating grooves 30. A second hollow plate 32 and a third hollow plate 53 are fixedly mounted on one end of the two connecting shafts 31. A plurality of first nozzles 34 are fixedly connected to the bottom of the first hollow plate 26. A plurality of second nozzles 33 are fixedly connected to the bottom of the second hollow plate 32 and the third hollow plate 53. The drug liquid conveying mechanism is disposed on the mounting plate 3 and is used for conveying the drug liquid into the first hollow plate 26 , the second hollow plate 32 and the third hollow plate 53 .

[0014] In this embodiment, the locking mechanism includes a pull plate 21, and two locking rods 22 are fixedly installed on one side of the pull plate 21. One end of the two locking rods 22 is respectively clamped with the corresponding two first locking grooves 20. One side of the two vertical plates 13 is provided with a sliding hole 25, and the sliding hole 25 is connected to the movable groove 52. The outer side of the locking rod 22 is slidably connected to the inner wall of the sliding hole 25. One side of the two vertical plates 13 is fixedly installed with a supporting plate 23, and one side of the two supporting plates 23 is fixedly installed with a first spring 24, and one end of the two first springs 24 is fixedly connected to the pull plate 21.

[0015] In this embodiment, the rotating mechanism includes a first fixed plate 15 fixedly mounted on one side of the mounting plate 3, a second fixed plate 16 fixedly mounted on one side of the first fixed plate 15, a motor 17 fixedly mounted on one side of the second fixed plate 16, a driving gear 18 fixedly mounted on the output shaft of the motor 17, a driven gear 14 meshed with the driving gear 18, and the driven gear 14 fixedly sleeved on the outer side of the rotating shaft 12.

[0016] In this embodiment, the fixing mechanism includes two rectangular plates 38, one side of the two rectangular plates 38 is fixedly installed with a reset plate 39, one side of the two reset plates 39 is fixedly installed with an insertion rod 40, one end of the insertion rod 40 is clamped with the corresponding second locking groove 36, a rectangular groove 37 is provided on one side of the first fixed block 27, the rectangular plate 38 is slidably installed in the rectangular groove 37, a second spring is fixedly installed on the inner wall of one side of the rectangular groove 37, one end of the second spring is fixedly connected to the other side of the rectangular plate 38, a plurality of third locking grooves 41 distributed in an annular shape are provided on the outer side of the two connecting shafts 31, a mounting block 42 is fixedly installed on one side of the two connecting seats 29, locking bolts 43 are threadedly installed on the two mounting blocks 42, and one end of the locking bolt 43 is threadedly connected to the corresponding third locking groove 41.

[0017] In this embodiment, the medicine liquid delivery mechanism includes a plurality of positioning rods 45 fixedly mounted on the top of the mounting plate 3, the tops of the plurality of positioning rods 45 are fixedly mounted with the same limiting frame 4, the inner side of the limiting frame 4 is provided with a medicine liquid tank 5, the medicine liquid tank 5 is provided with a liquid filling port 6, a delivery pump 7 is fixedly mounted on the top of the mounting plate 3, the water inlet of the delivery pump 7 is fixedly connected to one end of a liquid extraction pipe 8, the other end of the liquid extraction pipe 8 is fixedly connected to the medicine liquid tank 5, the water outlet of the delivery pump 7 is fixedly connected to a hollow block 9, the hollow block 9 is fixedly connected to three diversion ports 10, the three diversion ports 10 are each provided with an electromagnetic valve 11, and the three diversion ports 10 are each fixedly connected to one end of a hose, and the other ends of the three hoses are respectively fixedly connected to the first hollow plate 26, the second hollow plate 32 and the third hollow plate 53.

[0018] In this embodiment, when in use, the pull plate 21 is pulled, the pull plate 21 stretches the first spring 24, and at the same time drives the two locking rods 22 to disengage from the two first locking grooves 20, releasing the fixation of the two lifting rods 19. At this time, the first hollow plate 26 can be moved vertically to adjust the ground clearance of the first nozzle 34 and the second nozzle 33. After adjustment, the pull plate 21 is released, the first spring 24 is reset, so that the locking rod 22 is stuck in the corresponding first locking groove 20, and the lifting rod 19 is fixed; Pull the reset plate 39, the reset plate 39 drives the insertion rod 40 and the rectangular plate 38 to move, the rectangular plate 38 stretches the second spring, the insertion rod 40 disengages from the second locking groove 36, and the fixation of the circular block 35 is released, so that the rotating column 28 can rotate, and the second hollow plate 32 can be flipped open at this time, and then the third hollow plate 53 can be flipped open in the same way. By opening the second hollow plate 32 and the third hollow plate 53, the spraying range can be increased, and then the delivery pump 7 is started to extract the liquid in the liquid tank 5 through the liquid extraction pipe 8. The liquid enters the hollow block 9, and then is diverted through the three diversion ports 10, and enters the first hollow plate 26, the second hollow plate 32 and the third hollow plate 53 from the three hoses. Finally, the liquid is sprayed onto the ground from the multiple first nozzles 34 and the multiple second nozzles 33; When it is necessary to spray the side, the second hollow plate 32 and the third hollow plate 53 are flipped open 90°, and then the locking bolt 43 is loosened to separate the locking bolt 43 from the third locking groove 41, and the lock on the connecting shaft 31 is released. Then the second hollow plate 32 and the third hollow plate 53 are flipped so that the second nozzles 33 on the second hollow plate 32 and the third hollow plate 53 are aligned with the side, and then a solenoid valve (the solenoid valve on the diversion port 10 connected to the first hollow plate 26) is closed to prevent the liquid medicine from entering the first hollow plate 26, thereby achieving spraying of the liquid medicine on both sides.

[0019] When spraying liquid medicine on the ground, the motor 17 drives the driving gear 18 to rotate, the driving gear 18 drives the driven gear 14 to rotate, the driven gear 14 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the two vertical plates 13 to flip, thereby adjusting the spraying angles of the multiple first nozzles 34 and the multiple second nozzles 33 to meet different spraying requirements. Embodiment 2

[0020] The difference between this embodiment and the first embodiment is that a mounting seat 47 is fixedly mounted on the wheeled tractor body 1, a buffer groove is provided on the mounting seat 47, a buffer shaft 48 is slidably mounted in the buffer groove, a seat plate 49 is fixedly mounted on one end of the buffer shaft 48, a backrest 50 is mounted on the seat plate 49, a buffer spring is fixedly mounted on the bottom inner wall of the buffer groove, one end of the buffer spring is fixedly connected to the buffer shaft 48, and a user sits on the seat plate 49, which can play a buffering role when bumps occur through the action of the buffer spring.

[0021] The rest is the same as that of the first embodiment.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wheeled tractor with adjustable ground clearance, characterized in that: include: Wheeled tractor body (1); A plurality of support rods (2) are fixedly mounted on the wheeled tractor body (1), and a same mounting plate (3) is fixedly mounted on the top ends of the plurality of support rods (2); A rotating hole (44) is provided on the mounting plate (3), and a rotating shaft (12) is rotatably mounted in the rotating hole (44); Two vertical plates (13) are fixedly mounted on the rotating shaft (12), and the bottoms of the two vertical plates (13) are each provided with a moving groove (52); Two lifting rods (19) are respectively slidably mounted on the two moving grooves (52), and a plurality of first locking grooves (20) are formed on the outer sides of the two lifting rods (19); A locking mechanism, provided on the two vertical plates (13), used to cooperate with the first locking groove (20) to lock the lifting rod (19); A rotating mechanism, disposed on the mounting plate (3) and used for rotating the rotating shaft (12); A first hollow plate (26) is fixedly mounted on the bottom of the two lifting rods (19); The two first fixing blocks (27) and the second fixing block (51) located below the two first fixing blocks (27) are both fixedly mounted on one side of the first hollow plate (26); Two rotating grooves (46) are provided at the tops of the two second fixed blocks (51), and rotating columns (28) are rotatably mounted in the two rotating grooves (46). Through holes are provided on the two first fixed blocks (27), and the tops of the two rotating columns (28) respectively penetrate the two through holes and are fixedly mounted with circular blocks (35), and the outer sides of the two circular blocks (35) are provided with a plurality of second locking grooves (36); A fixing mechanism, provided on the two first fixing blocks (27), and used to cooperate with the second locking groove (36) to lock the circular block (35); Two connecting seats (29) are respectively fixedly mounted on the two rotating columns (28); a rotating groove (30) is provided on one side of the two connecting seats (29); a connecting shaft (31) is rotatably mounted in the two rotating grooves (30); a second hollow plate (32) and a third hollow plate (53) are fixedly mounted on one end of the two connecting shafts (31); a plurality of first nozzles (34) are fixedly connected to the bottom of the first hollow plate (26); and a plurality of second nozzles (33) are fixedly connected to the bottom of the second hollow plate (32) and the third hollow plate (53); The liquid medicine conveying mechanism is arranged on the mounting plate (3) and is used for conveying the liquid medicine into the first hollow plate (26), the second hollow plate (32) and the third hollow plate (53).

2. A wheeled tractor with adjustable ground clearance according to claim 1, characterized in that: The locking mechanism comprises a pull plate (21), two locking rods (22) are fixedly mounted on one side of the pull plate (21), one end of the two locking rods (22) are respectively clamped in two corresponding first locking grooves (20), one side of the two vertical plates (13) are each provided with a sliding hole (25), the sliding hole (25) is communicated with the movable groove (52), and the outer side of the locking rod (22) is slidably connected to the inner wall of the sliding hole (25).

3. A wheeled tractor with adjustable ground clearance according to claim 2, characterized in that: A bearing plate (23) is fixedly mounted on one side of the two vertical plates (13), a first spring (24) is fixedly mounted on one side of the two bearing plates (23), and one end of the two first springs (24) is fixedly connected to the pull plate (21).

4. A wheeled tractor with adjustable ground clearance according to claim 3, characterized in that: The rotating mechanism comprises a first fixing plate (15) fixedly mounted on one side of the mounting plate (3), a second fixing plate (16) fixedly mounted on one side of the first fixing plate (15), and a motor (17) fixedly mounted on one side of the second fixing plate (16).

5. The wheeled tractor with adjustable ground clearance according to claim 4, characterized in that: A driving gear (18) is fixedly mounted on the output shaft of the motor (17), a driven gear (14) is meshed with the driving gear (18), and the driven gear (14) is fixedly sleeved on the outer side of the rotating shaft (12).

6. A wheeled tractor with adjustable ground clearance according to claim 5, characterized in that: The fixing mechanism comprises two rectangular plates (38), one side of each of the two rectangular plates (38) being fixedly mounted with a reset plate (39), one side of each of the two reset plates (39) being fixedly mounted with an insertion rod (40), one end of the insertion rod (40) being clamped in a corresponding second locking groove (36).

7. A wheeled tractor with adjustable ground clearance according to claim 6, characterized in that: A rectangular groove (37) is formed on one side of the first fixed block (27), a rectangular plate (38) is slidably mounted in the rectangular groove (37), a second spring is fixedly mounted on an inner wall of one side of the rectangular groove (37), and one end of the second spring is fixedly connected to the other side of the rectangular plate (38).

8. The wheeled tractor with adjustable ground clearance according to claim 7, characterized in that: A plurality of third locking grooves (41) distributed in an annular shape are formed on the outer sides of the two connecting shafts (31); a mounting block (42) is fixedly mounted on one side of the two connecting seats (29); locking bolts (43) are threadedly mounted on the two mounting blocks (42); one end of the locking bolts (43) is threadedly connected to the corresponding third locking groove (41).

9. A wheeled tractor with adjustable ground clearance according to claim 8, characterized in that: The liquid medicine delivery mechanism comprises a plurality of positioning rods (45) fixedly mounted on the top of the mounting plate (3); a same limiting frame (4) is fixedly mounted on the top of the plurality of positioning rods (45); a liquid medicine box (5) is provided on the inner side of the limiting frame (4); and a liquid filling port (6) is provided on the liquid medicine box (5).

10. The wheeled tractor with adjustable ground clearance according to claim 9, characterized in that: A delivery pump (7) is fixedly mounted on the top of the mounting plate (3); a water inlet of the delivery pump (7) is fixedly connected to one end of a liquid extraction pipe (8); the other end of the liquid extraction pipe (8) is fixedly connected to the liquid medicine tank (5); a water outlet of the delivery pump (7) is fixedly connected to a hollow block (9); three diversion ports (10) are fixedly connected to the hollow block (9); the three diversion ports (10) are each provided with a solenoid valve (11); and the three diversion ports (10) are fixedly connected to one end of a hose; the other ends of the three hoses are respectively fixedly connected to the first hollow plate (26), the second hollow plate (32) and the third hollow plate (53).

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