Adjustable line-shaped harrow and four-wheel riding type mini-tiller

Abstract

The utility model belongs to the technical field of tillage equipment, and particularly relates to an adjustable line-shaped harrow which is applied to a four-wheel riding type mini-tiller and comprises a connecting frame, a first adjusting assembly, a second adjusting assembly, a resistance rod and a harrow body which are installed at the rear end of the four-wheel riding type mini-tiller, and the harrow body and the resistance rod are both installed on the connecting frame. The first adjusting assembly is used for adjusting the height of the rake body, and the second adjusting assembly is used for adjusting the height of the resistance rod. The utility model further relates to a four-wheel riding type mini-tiller which adopts the harrow body. The utility model aims to provide a four-wheel riding type mini-tiller land leveler which can be connected with a four-wheel riding type mini-tiller by arranging a connecting frame, can adjust the height of a resistance rod or a harrow body by arranging a first adjusting assembly and a second adjusting assembly, and can be suitable for land leveling and weed removal in various farming environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to ploughing equipment technical field, concretely relates to an adjustable one -line harrow and four -wheel riding type mini -tiller. BACKGROUND

[0002] Traditional hand -held mini -tiller is widely used in agricultural planting as small -size agricultural machinery, but it also has some limitations or shortcomings, and the hand -held mini -tiller needs to be controlled by the operator to turn in the paddy field area, and also needs to overcome the vibration generated by the mini -tiller in the ploughing process, so that the labor intensity is larger.

[0003] Therefore, the applicant proposes an invention patent, a four -wheel mini -ploughing equipment (application number 202211542800.7), the driver can ride on the four -wheel riding type mini -tiller to operate, and the steering operation is more labor -saving, without the need for walking operation, reducing the labor intensity, the power mechanism drives the front gearbox and the rear gearbox through the engine, and combines the ploughing mechanism to realize the multi -gear four -wheel drive walking mode, the multi -gear four -wheel drive ploughing mode or the multi -gear two -wheel drive walking mode, and is suitable for ploughing and walking demand in various regions such as dry land and paddy field.

[0004] And in the subsequent use process, it is found that at present, there is lack of a flat land and weed removing plough for four -wheel riding type mini -tiller, and suitable for various ploughing environments. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide an adjustable one -line harrow for four -wheel riding type mini -tiller.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] An adjustable one -line harrow is applied to four -wheel riding type mini -tiller, comprising a connecting frame, a resistance rod and a harrow body installed at the rear end of the four -wheel riding type mini -tiller, the harrow body and the resistance rod are both installed on the connecting frame.

[0008] Working principle: the plough is connected with the four -wheel riding type mini -tiller through the connecting frame, when the four -wheel riding type mini -tiller moves, the resistance rod and the harrow body are dragged, the resistance rod is auxiliary support, so that the whole is more stable when moving, and the harrow body removes weeds and breaks up soil clods when moving.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] By setting the connecting frame, the four -wheel riding type mini -tiller can be connected, by setting the first adjusting assembly and the second adjusting assembly, the height of the resistance rod or the harrow body can be adjusted, and the flat land and weed removing can be suitable for various ploughing environments.

[0011] As the preferred embodiment of the utility model, the front end of the connecting frame is provided with a plurality of first mounting holes, the first mounting holes are connected with the rear end of the four-wheel riding type mini-tiller through bolts, the middle part of the connecting frame is symmetrically provided with a reinforcing rod, the rear end of the connecting frame and the rear end of the reinforcing rod are fixedly connected with a limiting sleeve, the center lines of a plurality of limiting sleeves are collinear, the harrow body comprises a rotating rod with a plurality of peg bodies, and the rotating rod is rotationally connected with a plurality of limiting sleeves in sequence.

[0012] Beneficial effects: the first mounting hole is arranged, the bolt is used for installation, the four-wheel riding type mini-tiller is conveniently connected, the connecting frame and the reinforcing rod are arranged, three limiting sleeves are combined, the rotating rod is limited, the rotating rod can rotate, the working depth of the peg body is adjusted, the reinforcing rod and the three limiting sleeves form a plurality of supporting points, the stress is more uniform, and the structural strength is improved.

[0013] As the preferred embodiment of the utility model, the connecting frame adopts a square tube.

[0014] Beneficial effects: the square tube is a hollow structure, the structural strength is ensured, the overall weight is reduced, and the outer wall of the square tube is a plane, so that the hole can be conveniently formed in the square tube.

[0015] As the preferred embodiment of the utility model, the first adjusting assembly is further arranged, the first adjusting assembly is used for adjusting the height of the harrow body, the first adjusting assembly comprises a sector plate and a rotating clamping plate, the sector plate is fixedly connected to the harrow body, a plurality of clamping grooves are formed in the circumference of the sector plate, the rotating clamping plate is rotationally installed on the connecting frame, and the rotating clamping plate can be rotationally separated from or clamped into the clamping grooves.

[0016] Beneficial effects: the harrow body is adjusted in the working depth by rotation, the adjusting range is that the peg is rotated from a vertical state to a horizontal state, the sector plate with the clamping grooves is arranged, the sector plate rotates along with the harrow body, different clamping grooves can be aligned with the rotating clamping plate, and the rotating clamping plate can be clamped into the corresponding clamping groove, so that the working depth can be adjusted.

[0017] As the preferred embodiment of the utility model, the rotating clamping plate comprises a threaded rod, a plate body and a torsional spring, a first through hole and an insertion hole are vertically and spaced apart on the plate body, a second through hole is vertically formed on the connecting frame, the threaded rod passes through the first through hole and the second through hole in sequence, the threaded rod is sequentially screwed with a first limiting nut, a second limiting nut and a third limiting nut from top to bottom, the second limiting nut and the third limiting nut abut against the top surface and the bottom surface of the connecting frame respectively, the plate body is located between the first limiting nut and the second limiting nut, the connecting frame is located between the second limiting nut and the third limiting nut, the upper end of the torsional spring is inserted into the insertion hole, the middle part of the torsional spring is sleeved on the second limiting nut, and the lower end of the torsional spring abuts against the outer wall of the connecting frame.

[0018] Beneficial effects: by setting the first limiting nut, the second limiting nut, the third limiting nut, the threaded rod and the plate body are vertically limited, and the threaded rod cannot rotate, so that the plate body can rotate around the threaded rod, the insertion hole is formed on the plate body, during installation, one end of the torsion spring is inserted into the insertion hole, then the plate body and the torsion spring are sleeved on the threaded rod and the second limiting nut, and the other end of the torsion spring is located on the connecting frame, so that the installation is convenient and fast, after the plate body is pulled away from the side of the clamping groove, the torsion spring is compressed, and after the plate body is released, the plate body can be automatically clamped into the clamping groove through the elastic force, so that the operation is more convenient.

[0019] As the preferred embodiment of the utility model, it further includes a second adjusting assembly, the second adjusting assembly is used for adjusting the height of the resistance rod, the second adjusting assembly includes a vertical plate, the vertical plate is fixedly connected to the front end of the resistance rod, a plurality of second mounting holes are formed on the vertical plate at intervals, a rectangular hole is vertically formed in the middle of the connecting frame, and a third mounting hole is transversely formed, the vertical plate is arranged in the rectangular hole and is fixed by bolts penetrating through the third mounting hole and the corresponding second mounting hole.

[0020] Beneficial effects: the vertical plate slides along the rectangular hole, so that the third mounting hole is aligned with the corresponding second mounting hole, and the vertical plate can be fixed by bolts, so that the height of the resistance rod below the vertical plate can be adjusted.

[0021] As the preferred embodiment of the utility model, it further includes a third adjusting assembly, the third adjusting assembly includes a connecting sleeve and an adjusting rod, a fixed frame is installed at the rear end of the micro tiller, the connecting sleeve is fixedly installed on the fixed frame, the connecting sleeve is provided with threads, the adjusting rod is threadedly connected with the connecting sleeve, and a lifting piece is hingedly connected to the lower end of the adjusting rod.

[0022] Beneficial effects: by arranging the third adjusting assembly, the connecting frame can be lifted by the lifting piece after the adjusting rod is rotated, so that the resistance rod and the rake body can be integrally lifted or lowered, the whole machine can be separated from the ground, and the four-wheel riding type micro tiller can be suitable for a walking mode.

[0023] The second purpose of the utility model is to provide a four-wheel riding type micro tiller, which adopts the adjustable one-way rake, and is suitable for land leveling and weed removal in various farming environments. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the adjustable one-way rake embodiment one of the utility model;

[0025] Figure 2 is a structural schematic view of the first adjusting assembly in the adjustable one-way rake embodiment one of the utility model;

[0026] Figure 3It is the third adjusting assembly structure diagram of adjustable one bar harrow embodiment two of the utility model;

[0027] Figure 4 It is the internal structure diagram of third adjusting assembly of adjustable one bar harrow embodiment two of the utility model.

[0028] The signs include: connecting frame 1, first mounting hole 11, reinforcing rod 12, limit sleeve 13, first adjusting assembly 2, fan-shaped plate 21, clamping groove 22, rotating clamping plate 23, threaded rod 231, plate body 232, torsional spring 233, first limit nut 234, second limit nut 235, third limit nut 236, second adjusting assembly 3, vertical plate 31, second mounting hole 32, third mounting hole 33, resistance rod 4, harrow body 5, fixed frame 6, third adjusting assembly 7, connecting sleeve 71, adjusting rod 72, lifting piece 73, first rod body 731, second rod body 732, third rod body 733, first sleeve 734, second sleeve 735, upper limit ring 736, lower limit ring 737, bearing 738. DETAILED DESCRIPTION

[0029] The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes on different embodiments, which do not deviate from the scope of the present application, and the description and drawings in essence are used as description, not to limit the present application.

[0030] In the description of the present application, the terms "first", "second", "one side" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the structure referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0031] Embodiment one:

[0032] Referring to Figure 1 , Figure 2 As shown in the drawings, the adjustable one bar harrow of the embodiment is applied to four-wheel riding type mini-tiller, which comprises connecting frame 1, first adjusting assembly 2, second adjusting assembly 3, resistance rod 4 and harrow body 5, the harrow body 5 and the resistance rod 4 are both installed on the connecting frame 1, the first adjusting assembly 2 is used for adjusting the height of the harrow body 5, and the second adjusting assembly 3 is used for adjusting the height of the resistance rod 4.

[0033] Among them, the connecting frame 1 adopts square tube, the square tube is hollow structure, ensures certain structural strength, reduces the overall weight, and because the outer wall of the square tube is plane, it is convenient to open hole on the square tube

[0034] Among them, referring toFigure 1 As shown, the front end of the connecting frame 1 is provided with a plurality of first mounting holes 11, the first mounting holes 11 are connected with the rear end of the four-wheel riding type micro tiller through bolts, the middle part of the connecting frame 1 is symmetrically provided with a reinforcing rod 12, the rear end of the connecting frame 1 and the rear end of the reinforcing rod 12 are both fixedly connected with a limiting sleeve 13, the center lines of a plurality of limiting sleeves 13 are collinear, the harrow body 5 includes a rotating rod with a plurality of spike bodies, the rotating rod is in turn rotatably connected with a plurality of limiting sleeves 13; by setting the first mounting hole 11, the four-wheel riding type micro tiller is conveniently connected through bolts; by setting the connecting frame 1 and the reinforcing rod 12, in combination with the three limiting sleeves 13, the rotating rod is limited, so that the rotating rod can rotate, thereby adjusting the working depth of the spike body, the reinforcing rod 12 and the three limiting sleeves 13 form a plurality of support points, the stress is more uniform, and the structural strength is improved.

[0035] Wherein, see Figure 2 As shown, the first adjusting assembly 2 includes a fan-shaped plate 21 and a rotating clamping plate 23, the fan-shaped plate 21 is fixedly connected on the harrow body 5, a plurality of clamping grooves 22 are formed in the circumference of the fan-shaped plate 21, the rotating clamping plate 23 is rotatably installed on the connecting frame 1, and the rotating clamping plate 23 can be rotatably separated from or clamped into the clamping groove 22; the first adjusting assembly 2 includes the fan-shaped plate 21 and the rotating clamping plate 23, the fan-shaped plate 21 is fixedly connected on the harrow body 5, a plurality of clamping grooves 22 are formed in the circumference of the fan-shaped plate 21, the rotating clamping plate 23 is rotatably installed on the connecting frame 1, and the rotating clamping plate 23 can be rotatably separated from or clamped into the clamping groove 22; by setting the fan-shaped plate 21 with the clamping groove 22, the fan-shaped plate 21 rotates with the harrow body 5, different clamping grooves 22 can be aligned with the rotating clamping plate 23, and after the rotating clamping plate 23 is clamped into the corresponding clamping groove 22, the working depth can be adjusted.

[0036] Wherein, see Figure 2As shown, the rotating clamping plate 23 comprises a threaded rod 231, a plate body 232 and a torsion spring 233, the plate body 232 is vertically spaced apart and provided with a first through hole and an insertion hole, the connecting frame 1 is vertically provided with a second through hole, the threaded rod 231 passes through the first through hole and the second through hole in sequence, the threaded rod 231 is screwed with a first limiting nut 234, a second limiting nut 235 and a third limiting nut 236 from top to bottom, the second limiting nut 235 and the third limiting nut 236 abut against the top surface and the bottom surface of the connecting frame 1 respectively, the plate body 232 is located between the first limiting nut 234 and the second limiting nut 235, the connecting frame 1 is located between the second limiting nut 235 and the third limiting nut 236, the upper end of the torsion spring 233 is inserted into the insertion hole, the middle part of the torsion spring 233 is sleeved on the second limiting nut 235, and the lower end of the torsion spring 233 abuts against the outer wall of the connecting frame 1; after the plate body 232 is pulled away from the clamping groove 22, the torsion spring 233 is compressed, and after the plate body 232 is released, the plate body 232 can be automatically clamped into the clamping groove 22 by the elastic force, so that the operation is more convenient.

[0037] As shown in the accompanying drawings, Figure 1 As shown, the second adjusting assembly 3 comprises a vertical plate 31, the vertical plate 31 is fixedly connected to the front end of the resistance rod 4, a plurality of second mounting holes 32 are spaced apart on the vertical plate 31, a rectangular hole is vertically formed in the middle of the connecting frame 1, and a third mounting hole 33 is transversely formed, the vertical plate 31 is arranged in the rectangular hole and is fixed by bolts passing through the third mounting hole 33 and the corresponding second mounting hole 32; the vertical plate 31 slides along the rectangular hole, so that the third mounting hole 33 is aligned with the corresponding second mounting hole 32, and the vertical plate 31 can be fixed by bolts, so as to adjust the height of the resistance rod 4 below the vertical plate 31.

[0038] The embodiment also provides a four-wheel riding type mini-tiller, which adopts the adjustable linear harrow 5 and is suitable for land leveling and weed removal in various working environments.

[0039] Embodiment two:

[0040] As shown in the accompanying drawings, Figure 3As shown, the adjustable one-bar rake of the embodiment further comprises a third adjusting assembly 7 on the basis of the first embodiment, the third adjusting assembly 7 comprises a connecting sleeve 71 and an adjusting rod 72, a fixing frame 6 is installed at the rear end of the mini-tiller, the connecting sleeve 71 is fixedly installed on the fixing frame 6, the connecting sleeve 71 is provided with threads inside, the adjusting rod 72 is threadedly connected with the connecting sleeve 71, the lower end of the adjusting rod 72 is hingedly connected with a lifting piece 73, and the connecting frame 1 is lifted or lowered by the lifting piece 73 when the adjusting rod 72 rotates; by arranging the third adjusting assembly 7, the connecting frame 1 can be lifted by the lifting piece 73 after the adjusting rod 72 rotates, so that the resistance rod 4 and the rake body 5 are integrally lifted or lowered, the whole can be separated from the ground, and the four-wheel riding type mini-tiller walking mode can be applied.

[0041] As shown in the drawings, Figure 4 As shown, the lifting piece 73 comprises a first rod body 731, a second rod body 732 and a third rod body 733, the first rod body 731 is transversely rotatably installed on the fixing frame 6, the second rod body 732 is transversely rotatably installed on the connecting frame 1, the first rod body 731 and the second rod body 732 are respectively fixedly connected with a first sleeve 734 and a second sleeve 735, the third rod body 733 passes through the first sleeve 734 and the second sleeve 735 in sequence, the third rod body 733 is provided with a limiting part, the limiting part blocks the third rod body 733 from sliding relative to the first sleeve 734, and the upper end of the third rod body 733 is hingedly connected with the lower end of the adjusting rod 72; since the adjusting rod 72 is screwed with the connecting sleeve 71, the height of the adjusting rod 72 changes after the adjusting rod 72 rotates, the hingedly connected third rod body 733 rotates, the height of the third rod body 733 changes, and the first rod body 731, the second rod body 732 and the sleeve are arranged, so that the third rod body 733 rotates around the central axis of the first rod body 731, the third rod body 733 slides relative to the second sleeve 735, the connecting frame 1 is lifted or lowered by the second rod body 732, and the height adjustment is realized.

[0042] As shown in the drawings, Figure 4 As shown, the limiting part comprises an upper limiting ring 736 and a lower limiting ring 737 fixed on the third rod body 733, the upper limiting ring 736 and the lower limiting ring 737 are located at the upper and lower ends of the first sleeve 734, and bearings 738 are arranged between the upper limiting ring 736, the lower limiting ring 737 and the first sleeve 734; since the whole tiller is heavy, the bearings 738 are arranged to assist in supporting, the rotating friction is reduced, and the service life is improved.

[0043] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-essential changes and replacements made by the person skilled in the art on the basis of the utility model all belong to the range of protection required by the utility model.

Claims

1. An adjustable one-way harrow characterized by, Be applied to four-wheel ride type microcultivator, Including the connecting frame, resistance rod and harrow body installed at the rear end of four-wheel ride type microcultivator, the harrow body and resistance rod are installed on the connecting frame.

2. The adjustable one-word harrow according to claim 1, wherein: The front end of the connecting frame is provided with a plurality of first mounting holes, the first mounting holes are connected with the rear end of the four-wheel ride type microcultivator through bolts, the middle part of the connecting frame is symmetrically provided with reinforcing rods, the rear end of the connecting frame and the rear end of the reinforcing rod are fixedly connected with limiting sleeves, the center lines of a plurality of limiting sleeves are collinear, the harrow body comprises a rotating rod with a plurality of spike bodies, and the rotating rod is rotationally connected with a plurality of limiting sleeves in sequence.

3. The adjustable one-word harrow according to claim 2, wherein: The connecting frame adopts a square tube.

4. The adjustable one-word harrow according to claim 2, further comprising a first adjusting assembly for adjusting the height of the harrow body, the first adjusting assembly comprises a sector plate and a rotating clamping plate, the sector plate is fixedly connected to the harrow body, a plurality of clamping grooves are formed in the circumference of the sector plate, the rotating clamping plate is rotationally installed on the connecting frame, and the rotating clamping plate can be rotationally separated from or clamped into the clamping grooves.

5. The adjustable one-word harrow according to claim 4, wherein: The rotating clamping plate comprises a threaded rod, a plate body and a torsion spring, a first through hole and an insertion hole are vertically and spaced apart formed in the plate body, a second through hole is vertically formed in the connecting frame, the threaded rod passes through the first through hole and the second through hole in sequence, the threaded rod is screwed with a first limiting nut, a second limiting nut and a third limiting nut from top to bottom, the second limiting nut and the third limiting nut are respectively abutted against the top surface and the bottom surface of the connecting frame, the plate body is located between the first limiting nut and the second limiting nut, the connecting frame is located between the second limiting nut and the third limiting nut, the upper end of the torsion spring is inserted into the insertion hole, the middle part of the torsion spring is sleeved on the second limiting nut, and the lower end of the torsion spring is abutted against the outer wall of the connecting frame.

6. The adjustable one-word harrow according to claim 1, further comprising a second adjusting assembly for adjusting the height of the resistance rod, the second adjusting assembly comprises a vertical plate, the vertical plate is fixedly connected to the front end of the resistance rod, a plurality of second mounting holes are spaced apart formed in the vertical plate, a rectangular hole is vertically formed in the middle part of the connecting frame, and a third mounting hole is transversely formed in the connecting frame, the vertical plate is arranged in the rectangular hole and is fixed by bolts passing through the third mounting hole and the corresponding second mounting holes.

7. The adjustable one-word harrow according to claim 1, further comprising a third adjusting assembly, the third adjusting assembly comprises a connecting sleeve and an adjusting rod, a fixed frame is installed at the rear end of the microcultivator, the connecting sleeve is fixedly installed on the fixed frame, the connecting sleeve is provided with a thread, the adjusting rod is threadedly connected with the connecting sleeve, and the lower end of the adjusting rod is hingedly connected with a lifting piece, when the adjusting rod rotates, the connecting frame is lifted or lowered through the lifting piece. The adjustable one-word harrow according to any one of claims 1-7. ​ ​ 8. A four-wheeled ride-on mini-tiller characterized by, ​

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