Leveling structure of folding rotary cultivator and machine shell of folding rotary cultivator

Abstract

The utility model relates to the technical field of rotary cultivators, in particular to a soil leveling structure of a folding rotary cultivator and a machine shell of the folding rotary cultivator, the soil leveling structure comprises a soil dragging mechanism, the soil leveling mechanism and a soil leveling pressing piece, the soil dragging mechanism comprises a soil dragging plate, and a rotary cultivator connecting piece is arranged on the upper portion of the soil dragging plate. The soil dragging plate can be connected with the rotary cultivator through the rotary cultivator connecting piece, the soil dragging plate rotates with the rotary cultivator connecting piece as the rotating center, dragging plate lifting lug plates are fixedly arranged in the middle of the soil dragging plate, soil dragging plate pressing piece connecting holes are formed in the dragging plate lifting lug plates, and a strong pressing rod is rotationally connected between the two dragging plate lifting lug plates through a pin shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary tillers, in particular to a soil leveling structure of a foldable rotary tiller and a casing of the foldable rotary tiller. Background Art

[0002] Generally, after using a rotary tiller to till the land, it is necessary to level the land. Existing rotary tillers are generally only equipped with a soil dragging mechanism. The land needs to be leveled while tilling. Therefore, a rotary tiller with a soil leveling mechanism is required. When the soil dragging and soil leveling mechanisms encounter larger soil blocks or debris, the compression spring of the pressure piece will compress or extend according to the ground conditions, reducing damage to the soil dragging plate and the soil leveling mechanism. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a soil leveling structure of a foldable rotary tiller, wherein the soil leveling mechanism is connected to the soil dragging mechanism and rotates relative to the soil dragging mechanism, the soil leveling mechanism and the soil dragging mechanism are both provided with soil leveling pressing pieces and both can be connected to the body of the rotary tiller through the soil leveling pressing pieces, the second soil leveling plate of the soil leveling mechanism can move relative to the first soil leveling plate, and the size of the soil leveling end surface can be adjusted.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a soil leveling structure of a foldable rotary tiller, including a soil dragging mechanism, a soil leveling mechanism and a soil leveling member, the soil dragging mechanism includes a soil dragging plate, a rotary tiller connecting member is provided on the upper part of the soil dragging plate and the rotary tiller connecting member rotates relative to the soil dragging plate, and a soil leveling plate connecting portion is provided at the lower part of the soil dragging plate; the soil leveling mechanism includes a first soil leveling plate and a second soil leveling plate, the first soil leveling plate is connected to the soil leveling plate connecting portion and rotates relative to the soil dragging plate, a telescopic driving member is provided on the first soil leveling plate, the second soil leveling plate is provided on the first soil leveling plate and is driven to move by the telescopic driving member, and the lower end surface of the first soil leveling plate and The lower end surface of the second leveling plate extending out of the first leveling plate constitutes the leveling end surface; the dragging plate and the first leveling plate are both connected with a leveling piece, the leveling piece includes a leveling pressure rod and a rotary tiller mounting piece, the bottom end of the leveling pressure rod is rotatably connected to the dragging plate or the first leveling plate, a middle stopper is arranged on the leveling pressure rod, the middle stopper moves along the leveling pressure rod and the middle stopper is rotatably connected to the rotary tiller mounting piece, a lower stopper is arranged below the middle stopper on the leveling pressure rod, a first spring is arranged between the middle stopper and the lower stopper on the leveling pressure rod, an upper stopper is arranged above the middle stopper on the leveling pressure rod, and a second spring is arranged between the middle stopper and the upper stopper on the leveling pressure rod.

[0005] The soil-dragging plate can be rotatably mounted on the frame of the rotary tiller, the first soil-leveling plate is rotatably connected to the soil-dragging plate, both the first soil-leveling plate and the soil-dragging plate are provided with soil-leveling pressing pieces and both can be connected to the frame of the rotary tiller through the soil-leveling pressing pieces, the second soil-leveling plate is arranged on the first soil-leveling plate and can move relative to the first soil-leveling plate, the second soil-leveling plate and the first soil-leveling plate form an adjustable soil-leveling end surface, and the soil-leveling range of the soil-leveling mechanism can be adjusted.

[0006] As an optional solution, a telescopic guide is provided on the first flat soil plate, and the telescopic guide includes an outer guide and an inner guide. The outer guide is provided on the first flat soil plate and a guide channel is provided in the outer guide. A moving clearance gap is reserved between the outer guide and the first flat soil plate, and the moving clearance gap is communicated with the guide channel. The inner guide is provided in the guide channel and moves along the direction defined by the outer guide. The second flat soil plate is provided in the moving clearance gap and connected to the inner guide. The telescopic driving member is provided on the outer guide and the telescopic portion of the telescopic driving member is connected to the inner guide. The telescopic driving member drives the second flat soil plate to move along the direction defined by the telescopic guide.

[0007] As an optional solution, a reinforcement cover is provided on the outer guide member, and the flat soil pressure member is connected to the reinforcement cover.

[0008] As an optional solution, two telescopic guide members are symmetrically arranged on the first leveling plate, and the two telescopic guide members correspond to the second leveling plate and the telescopic driving member.

[0009] As an optional solution, the two telescopic guide members share one outer guide member.

[0010] As an optional solution, the rotary tiller connecting part includes a connecting shaft, which is passed through a through hole opened on the upper part of the soil dragging plate. The connecting shaft is parallel to the telescopic direction of the telescopic drive part. Both ends of the connecting shaft extend out of the through hole and are provided with a rotary tiller connecting plate. A clearance opening is also reserved at the through hole on the upper part of the soil dragging plate. A connecting sleeve is provided on the connecting shaft at the clearance opening, and a reinforced connecting plate is provided on the connecting sleeve.

[0011] As an optional solution, the middle block, the lower block and the upper block are all provided with openings, the soil leveling rod passes through the openings of the middle block, the lower block and the upper block, and a plurality of block limit pin holes are arranged axially on the soil leveling rod.

[0012] As an optional solution, the soil-dragging plate is a curved plate, and the outer curved surface of the soil-dragging plate is the soil-dragging end surface.

[0013] Based on the same concept, the utility model also provides a casing of a foldable rotary tiller, including a frame, a side frame and a soil leveling structure, side frames are arranged at the left and right ends of the frame, the soil leveling structure is the above-mentioned soil leveling structure, the rotary tiller connecting part of the soil leveling structure is connected to the rear end face of the frame and the rotary tiller mounting parts of each soil leveling pressing part are rotatably connected to the frame, and the area between the two side frames defined by the lower end face of the frame and the inner end face of the soil dragging plate is the rotary tillage working area.

[0014] As an optional solution, the soil dragging plate and the first soil leveling plate are both connected with at least two soil leveling pressing members.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the soil dragging mechanism can be rotatably installed on the rotary tiller through the rotary tiller connecting piece, the soil leveling mechanism is connected to the soil dragging mechanism and can rotate relative to the soil dragging mechanism, both the soil dragging mechanism and the soil leveling mechanism are connected with a soil leveling pressing piece suitable for connecting to the rotary tiller, when in use, the soil leveling mechanism and the soil dragging mechanism can both rotate adaptively according to the land conditions, and the soil leveling pressing piece presses the soil leveling mechanism and the soil dragging mechanism to the ground to ensure the soil leveling effect on the land; the soil leveling mechanism includes a first soil leveling plate and a second soil leveling plate, and the second soil leveling plate can be driven to move by a telescopic driving piece arranged on the first soil leveling plate, so as to adjust the soil leveling range of the soil leveling mechanism, which is suitable for use with ordinary rotary tillers and folding rotary tillers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a flat earth structure;

[0018] Figure 2 It is a structural diagram of a flat earth structure;

[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 It is a structural schematic diagram of a casing of a rotary tiller;

[0021] In the figure: 1, soil dragging plate, 2, rotary tiller connecting part, 3, first soil leveling plate, 4, second soil leveling plate, 5, telescopic driving part, 6, soil leveling pressure part, 61, soil leveling pressure rod, 62, rotary tiller mounting part, 63, middle stopper, 64, lower stopper, 65, first spring, 66, upper stopper, 67, second spring, 7, telescopic guide part, 8, frame, 9, side frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figure 1-Figure 3 A soil-leveling structure of a foldable rotary tiller includes a soil-dragging mechanism, a soil-leveling mechanism, and a soil-leveling pressing member 6. The soil-dragging mechanism includes a soil-dragging plate 1, and a rotary tiller connecting member 2 is provided on the upper part of the soil-dragging plate 1. The rotary tiller connecting member 2 can rotate relative to the soil-dragging plate 1. The rotary tiller connecting member 2 is used to connect with a frame 8 of the rotary tiller to install the soil-dragging plate 1 on the rotary tiller. Under the action of the rotary tiller connecting member 2, the soil-dragging plate 1 can rotate relative to the frame 8 of the rotary tiller. When the rotary tiller encounters a large amount of soil during the rotary tillage of the land, the soil-dragging plate 1 rotates adaptively relative to the rotary tiller.

[0025] The lower part of the dragging plate 1 is provided with a soil leveling plate connection part, which is used for the installation and connection of the soil leveling mechanism. The soil leveling mechanism includes a first soil leveling plate 3 and a second soil leveling plate 4. The first soil leveling plate 3 is connected to the soil leveling plate connection part and can rotate relative to the dragging plate 1. The bottom end surface of the first soil leveling plate 3 is set as the first soil leveling end surface.

[0026] The soil dragging plate 1 and the first soil leveling plate 3 are both provided with soil leveling pressing pieces 6, the bottom end of the soil leveling pressing piece 6 on the soil dragging plate 1 is connected to the soil dragging plate 1 and can rotate relative to the soil dragging plate 1, the bottom end of the soil leveling pressing piece 6 on the first soil leveling plate 3 is connected to the first soil leveling plate 3 and can rotate relative to the first soil leveling plate 3, and each soil leveling pressing piece 6 is provided with a rotary tiller mounting piece 62. When the soil leveling structure of this embodiment is used on a rotary tiller, the rotary tiller mounting piece 62 of each soil leveling pressing piece 6 is connected to the frame 8 of the rotary tiller, the soil dragging plate 1 can rotate relative to the frame 8 of the rotary tiller and be pressed downward by the corresponding soil leveling pressing piece 6 to achieve a better soil leveling effect, and the first soil leveling plate 3 can rotate relative to the soil dragging plate 1 and be pressed downward by the corresponding soil leveling plate to achieve a better soil leveling effect.

[0027] The soil leveling pressure piece 6 includes a soil leveling pressure rod 61 and a rotary tiller mounting piece 62. The bottom end of the soil leveling pressure rod 61 is connected to the dragging plate 1 or the first soil leveling plate 3 and can rotate relative to the connection. Each soil leveling pressure rod 61 is provided with a middle block 63, which can move along the rod length direction of the soil leveling pressure rod 61. The middle block 63 is connected to the rotary tiller mounting piece 62 and the middle block 63 can rotate relative to the connection with the rotary tiller mounting piece 62. A lower block 64 is provided on the soil leveling pressure rod 61 below the middle block 63. A first spring 65 is provided on the soil leveling pressure rod 61 between the middle block 63 and the lower block 64. An upper block 66 is provided on the soil leveling pressure rod 61 above the middle block 63. The upper block 66 is connected to the soil leveling pressure rod 61. A second spring 67 is provided on the soil leveling pressure rod 61 between the middle block 63 and the upper block 66.

[0028] When the soil leveling structure of this embodiment is used on a rotary tiller, the rotary tiller mounting member 62 is connected to the frame 8 of the rotary tiller, and the upper and lower ends of the first spring 65 are respectively in conflict with the middle block 63 and the lower block 64. The first spring 65 presses down the lower block 64 and presses the soil leveling pressure rod 61 through the lower block 64 to have a downward movement trend, thereby achieving the effect of pushing the soil dragging plate 1 to the side where the body of the rotary tiller is located and pressing the first soil leveling plate 3 to the ground. When the amount of soil leveling is too large, the soil dragging plate 1 can still be turned away from the rotary tiller, and the first soil leveling plate 3 can also be lifted upward. When the amount of soil leveling returns to normal, under the action of each soil leveling pressure rod 61, the soil dragging plate 1 and the first soil leveling plate 3 return to their original positions. The two ends of the second spring 67 are respectively in conflict with the upper block 66 and the middle block 63, and the upper block 66 cooperates with the middle block 63 through the second spring 67 to prevent the top of the soil leveling pressure rod 61 from falling off.

[0029] The second leveling plate 4 is arranged on the first leveling plate 3, and the bottom end surface of the second leveling plate 4 is set as the second leveling end surface. A telescopic driving member 5 is arranged on the first leveling plate 3. The telescopic portion of the telescopic driving member 5 is connected to the second leveling plate 4 and the telescopic driving member 5 drives the second leveling plate 4 to move relative to the first leveling plate 3. The part of the second leveling end surface extending out of the first leveling plate 3 and the first leveling end surface constitute a leveling end surface. The position of the second leveling plate 4 is adjusted by using the telescopic driving member 5, and the size of the leveling end surface can be adjusted, so that the leveling mechanism can perform leveling operations on a larger range of ground at the same time.

[0030] As a preferred embodiment, the telescopic direction of the telescopic drive member 5 is parallel to the width direction of the soil leveling structure. The telescopic drive member 5 drives the second soil leveling plate 4 to extend out of the first soil leveling plate 3, so that the soil leveling mechanism can level the soil over a wider range. When applied to a folding rotary tiller, the folding clearance gap of the folding rotary tiller and the part outside the soil leveling range can be leveled.

[0031] See also Figure 1 and Figure 2In order to improve the strength of the leveling mechanism and ensure the stability of the second leveling plate 4 moving relative to the first leveling plate 3, in a further embodiment, a telescopic guide member 7 is provided on the first leveling plate 3, and the second leveling plate 4 can only move along the direction defined by the telescopic guide member 7 under the drive of the telescopic drive member 5. The telescopic guide member 7 includes an outer guide member and an inner guide member, the outer guide member is provided on the first leveling plate 3, a guide channel is provided in the outer guide member, and the inner guide member is provided in the guide channel and moves along the guide channel. A moving clearance gap is reserved between the lower part of the outer guide member and the first leveling plate 3, the moving clearance gap is connected to the guide channel, the second leveling plate 4 is provided in the moving clearance gap, and the second leveling plate 4 is connected to the inner guide member. Since the inner guide member can only move along the guide channel, the second leveling plate 4 can also only move along the guide channel defined by the telescopic guide member 7. The telescopic driving member 5 is installed on the outer guide member, and the telescopic portion of the telescopic driving member 5 is connected to the inner guide member. The telescopic driving member 5 drives the second leveling plate 4 to move along the guide channel by driving the inner guide member to move along the guide channel.

[0032] See also Figure 1 and Figure 2 As a specific example of the telescopic guide member 7, the inner guide member is a square tube, the outer guide member is a U-shaped steel that adapts to the outer shape of the inner guide member, the outer guide member is buckled on the first flat earth plate 3 and connected to the first flat earth plate 3 through a reinforcing plate, the inner guide member is inserted into the outer guide member and the part of the inner guide member extending out of the guide channel is provided with a connecting ear suitable for connecting the telescopic drive member 5.

[0033] In some embodiments, a reinforcement cover is provided on the outer guide member, the reinforcement cover is provided on the outer guide member and connected to the outer guide member, and the soil leveling member 6 is connected to the first soil leveling plate 3 by being connected to the reinforcement cover.

[0034] In some embodiments, two telescopic guide members 7 are symmetrically arranged on the first leveling plate 3, and both telescopic guide members 7 correspond to the second leveling plate 4 and the telescopic driving member 5. The second leveling plates 4 can be extended from the opposite ends of the first leveling plate 3 to increase the leveling range of the leveling mechanism.

[0035] Furthermore, in order to simplify the structure of the equipment, the two telescopic guide members 7 share an outer guide member, that is, two inner guide members are arranged in the guide channel, and the two inner guide members are respectively connected to the second leveling plates 4, and two telescopic driving members 5 are symmetrically arranged on the outer guide member, and the two telescopic driving members 5 are respectively connected to the two inner guide members and are respectively used to adjust the positions of the two second leveling plates 4.

[0036] See also Figure 1-Figure 3, a through hole is provided on the upper part of the soil dragging plate 1, and the length direction of the through hole is parallel to the telescopic direction of the telescopic driving member 5. The rotary tiller connecting member 2 includes a connecting shaft, which is inserted into the through hole, and the soil dragging plate 1 can rotate relative to the connecting shaft. Both ends of the connecting shaft extend out of the through hole and are provided with a rotary tiller connecting plate for connecting with the frame 8 of the rotary tiller. The rotary tiller connecting plate can rotate relative to the connecting shaft and the rotary tiller connecting plate is provided with a plurality of holes for connecting with the frame 8, and the connecting end can be connected to the frame 8 of the rotary tiller through a connecting seat or a connecting ear; a clearance opening is reserved on the upper part of the soil dragging plate 1, and the clearance opening is communicated with the through hole, and a connecting sleeve is provided at the corresponding clearance opening on the connecting shaft, and the connecting sleeve is sleeved on the connecting shaft and can rotate relative to the connecting shaft, and a reinforcing connecting plate is provided on the outside of the connecting sleeve, and a connecting hole is provided on the reinforcing connecting plate, and the reinforcing connecting plate can be connected to the frame 8 of the rotary tiller by bolts and nuts passing through the connecting holes.

[0037] See also Figure 3 In some embodiments, openings are provided on the upper stopper 66, the middle stopper 63 and the lower stopper 64, and the soil leveling pressure rod 61 passes through the opening of the upper stopper 66, the opening of the middle stopper 63 and the opening of the lower stopper 64. The positions of the three can be adjusted along the soil leveling pressure rod 61. A plurality of stopper limit pin holes are arranged axially on the soil leveling pressure rod 61, and positioning pins are inserted into the stopper limit pin holes to limit the position of the upper stopper 66 and / or the lower stopper 64, so that the soil leveling pressure rod 6 can achieve the best pressing effect on the dragging plate 1 or the first soil leveling plate 3.

[0038] As an optional embodiment, the soil-dragging plate 1 is a curved plate, the outer curved surface of the soil-dragging plate 1 is the soil-dragging end surface, and the soil-leveling mechanism is arranged on one side of the inner curved surface of the soil-dragging plate 1 .

[0039] See also Figure 1-Figure 4 As a preferred embodiment, rotary tiller connecting pieces are provided at both ends of the upper part of the soil dragging plate, the soil dragging plate can be connected to the rotary tiller through the two rotary tiller connecting pieces, and the soil dragging plate can rotate around the connecting line of the two rotary tiller connecting pieces, a dragging plate lifting lug plate is provided on the plate surface of the soil dragging plate, a dragging plate pressing piece connecting hole is provided on the dragging plate lifting lug plate, a strong pressure rod is rotatably connected between the two dragging plate lifting lug plates through a pin shaft, the strong pressure rod is the flat soil pressure rod of the flat soil pressure piece, a ball adjustment ring is sleeved on the strong pressure rod, the ball adjustment ring is the middle stopper, and the ball adjustment ring is rotatably connected to the rotary tiller mounting piece 62;

[0040] The strong pressure rod is provided with a number of B-type pin insertion holes evenly distributed along the rod length direction, a B-type pin is arranged in a B-type pin insertion hole at the lower end of the strong pressure rod, a lower gasket is arranged above the B-type pin at the lower end of the strong pressure rod, the lower gasket is the lower stopper, the first spring is a long spring, the long spring is between the lower gasket and the ball adjustment ring, and the length and position of the long spring can be adjusted by adjusting the position of the B-type pin below the lower gasket; a B-type pin is also arranged in a B-type pin insertion hole at the upper end of the strong pressure rod, an upper gasket is arranged below the upper end B-type pin on the strong pressure rod, the upper gasket is the upper stopper, the second spring is a short spring, the short spring is between the upper gasket and the ball adjustment ring, and the length and position of the short spring can be adjusted by adjusting the position of the B-type pin above the upper gasket. A drag plate flip plate is arranged at the lower part of the drag plate 1, and a connecting hole suitable for connecting to the soil leveling mechanism is arranged on the drag plate flip plate;

[0041] The second soil leveling plate 4 is provided with an outer frame reinforcement plate and a frame bending plate, the outer frame reinforcement plate is provided with a connection hole, the connection hole on the outer frame reinforcement plate corresponds to the connection hole on the drag plate flip plate, and the outer frame reinforcement plate and the drag plate flip plate are rotatably connected through a pin shaft, the frame bending plate is provided with a telescopic driving member 5 and the outer frame reinforcement plate, the second soil leveling plate 4 is arranged on the first soil leveling plate 3 and is driven by the telescopic driving member 5 to extend and retract relative to the first soil leveling plate 4, thereby adjusting the soil leveling range of the soil leveling mechanism;

[0042] A middle bending plate is provided on the frame bending plate, a lower fixed plate is provided on the middle bending plate, a strong pressure rod connecting hole is provided on the lower fixed plate, a strong pressure rod is rotatably connected with the middle of the two lower fixed plates through a pin shaft, and the strong pressure rod is also rotatably connected with the rotary tiller mounting part 62 through a ball adjustment ring provided on the rod body. By adjusting the position of the upper gasket or the lower gasket on the strong pressure rod, the position and length of the two sections of the spring can be adaptively adjusted.

[0043] Example 2

[0044] A casing of a folding rotary tiller, see Figure 1-Figure 4 , including a frame 8, a side frame 9 and a soil leveling structure, the left and right ends of the frame 8 are provided with side frames 9, the soil leveling structure is connected to the frame 8 and is located at the rear end of the frame 8, the soil leveling structure is the soil leveling structure described in Example 1, the rotary tiller connecting member 2 of the soil leveling structure is connected to the rear end surface of the frame 8, the soil dragging plate 1 can rotate relative to the frame 8, and the rotary tiller mounting members 62 of each soil leveling pressing member 6 of the soil leveling structure are rotatably connected to the frame 8. The area between the two side frames 9 defined by the lower end surface of the frame 8 and the inner end surface of the soil dragging plate 1 is the rotary tillage working area, and the rotary tillage unit is installed in the rotary tillage working area.

[0045] As a preferred embodiment, the dragging plate 1 and the first leveling plate 3 are both connected with at least two leveling pieces 6 , and the dragging plate 1 and the first leveling plate 3 are both connected to the frame 8 via at least two leveling pieces 6 .

[0046] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A soil leveling structure of a folding rotary tiller, characterized in that: The invention comprises a soil dragging mechanism, a soil leveling mechanism and a soil leveling pressing member (6), wherein the soil dragging mechanism comprises a soil dragging plate (1), wherein a rotary tiller connecting member (2) is arranged on the upper part of the soil dragging plate (1) and the rotary tiller connecting member (2) rotates relative to the soil dragging plate (1), and a soil leveling plate connecting portion is arranged on the lower part of the soil dragging plate (1); the soil leveling mechanism comprises a first soil leveling plate (3) and a second soil leveling plate (4), wherein the first soil leveling plate (3) is connected to the soil leveling plate connecting portion and rotates relative to the soil dragging plate (1), wherein a telescopic driving member (5) is arranged on the first soil leveling plate (3) and is driven to move by the telescopic driving member (5), wherein the lower end surface of the first soil leveling plate (3) and the lower end surface of the second soil leveling plate (4) extending outside the first soil leveling plate (3) constitute a soil leveling end surface; the soil dragging plate (1) and the first soil leveling plate (3) are both connected to the soil leveling pressing member The soil leveling member (6) comprises a soil leveling member (61) and a rotary tiller mounting member (62). The bottom end of the soil leveling member (61) is rotatably connected to the soil dragging plate (1) or the first soil leveling plate (3). A middle stopper (63) is provided on the soil leveling member (61). The middle stopper (63) moves along the soil leveling member (61) and is rotatably connected to the rotary tiller mounting member (62). A lower stopper (64) is provided on the soil leveling member (61) below the middle stopper (63). A first spring (65) is provided on the soil leveling member (61) between the middle stopper (63) and the lower stopper (64). An upper stopper (66) is provided on the soil leveling member (61) above the middle stopper (63). A second spring (67) is provided on the soil leveling member (61) between the middle stopper (63) and the upper stopper (66).

2. The soil leveling structure of a folding rotary tiller according to claim 1, characterized in that: A telescopic guide member (7) is arranged on the first leveling plate (3), the telescopic guide member (7) comprising an outer guide member and an inner guide member, the outer guide member being arranged on the first leveling plate (3) and having a guide channel arranged therein, a movable clearance gap being reserved between the outer guide member and the first leveling plate (3), the movable clearance gap being in communication with the guide channel, the inner guide member being arranged in the guide channel and moving along a direction defined by the outer guide member, the second leveling plate (4) being arranged in the movable clearance gap and being connected to the inner guide member, the telescopic drive member (5) being arranged on the outer guide member and the telescopic portion of the telescopic drive member (5) being connected to the inner guide member.

3. The soil leveling structure of a folding rotary tiller according to claim 2, characterized in that: A reinforcement cover is provided on the outer guide member, and the flat soil pressing member (6) is connected to the reinforcement cover.

4. The soil leveling structure of a folding rotary tiller according to claim 2, characterized in that: Two telescopic guide members (7) are symmetrically arranged on the first soil leveling plate (3), and the two telescopic guide members (7) are each provided with a corresponding second soil leveling plate (4) and a telescopic driving member (5).

5. The soil leveling structure of a folding rotary tiller according to claim 4, characterized in that: The two telescopic guide members (7) share one outer guide member.

6. The soil leveling structure of a folding rotary tiller according to claim 2, characterized in that: The rotary tiller connecting member (2) comprises a connecting shaft, the connecting shaft is inserted into a through hole formed in the upper part of the soil dragging plate (1), the connecting shaft is parallel to the telescopic direction of the telescopic driving member (5), both ends of the connecting shaft extend out of the through hole and are provided with a rotary tiller connecting plate, a clearance opening is reserved at the upper part of the soil dragging plate (1) corresponding to the through hole, a connecting sleeve is provided on the connecting shaft at the clearance opening, and a reinforcing connecting plate is provided on the connecting sleeve.

7. The soil leveling structure of a folding rotary tiller according to claim 2, characterized in that: The middle stopper (63), the lower stopper (64) and the upper stopper (66) are all provided with openings, the soil leveling pressure rod (61) passes through the openings of the middle stopper (63), the lower stopper (64) and the upper stopper (66), and a plurality of stopper limit pin holes are arranged along the axial direction on the soil leveling pressure rod (61).

8. The soil leveling structure of a folding rotary tiller according to claim 7, characterized in that: The soil dragging plate (1) is a curved plate, and the outer curved surface of the soil dragging plate (1) is a soil dragging end surface.

9. A housing of a foldable rotary tiller, characterized in that: The invention comprises a frame (8), a side frame (9) and a soil leveling structure, wherein the left and right ends of the frame (8) are provided with side frames (9), the soil leveling structure is the soil leveling structure according to any one of claims 1 to 8, the rotary tiller connecting member (2) of the soil leveling structure is connected to the rear end face of the frame (8), and the rotary tiller mounting member (62) of each soil leveling pressing member (6) is rotatably connected to the frame (8), and the area defined by the lower end face of the frame (8) and the inner end face of the soil dragging plate (1) between the two side frames (9) is a rotary tilling working area.

10. The housing of a foldable rotary tiller according to claim 9, characterized in that: The soil dragging plate (1) and the first soil leveling plate (3) are both connected to at least two soil leveling pressing members (6).

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