Scarifier

Abstract

The utility model discloses a scarifier which comprises a rack and a break shovel, a walking mechanism used for controlling the rack to move is arranged on the lower portion of the rack, two fixing plates are oppositely arranged on the upper portion of the rear end of the rack, the upper end of the break shovel is rotatably installed between the two fixing plates, one fixing plate is provided with an installation hole penetrating through the thickness direction of the fixing plate, and the other fixing plate is provided with an installation hole penetrating through the thickness direction of the break shovel. A locking component is assembled in the mounting hole in a sliding mode, an elastic element is arranged between the locking component and the fixing plate, and the elastic element can force the inner end of the locking component to protrude out of the inner side of the fixing plate so that the break shovel can be limited to the upper side or the lower side of the locking component; the locking component is provided with a control part located on the outer side of the fixing plate, and the inner end of the locking component can be controlled through the control part to retract into the mounting hole so that the break shovel can be switched between the upper side and the lower side of the locking component. The utility model has the beneficial effect that the break shovel can be switched between a working posture and a non-working posture.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a tiller. Background Art

[0002] Before planting crops, it is often necessary to loosen the soil first so that the roots of the crops can breathe well and absorb water to promote crop growth. A scarifier is a special tool or mechanical equipment used to loosen the soil. It mechanically breaks up the soil and loosens the soil layer to improve soil structure and air permeability.

[0003] In the prior art, electric tillers are often large in size and cannot be used on smaller plots. At the same time, large tillers are also expensive for farmers. Therefore, most farmers usually use simple-structured miniature tillers to loosen the soil. Such tillers are generally equipped with a tiller on a frame. When used, the tip of the tiller is inserted into the soil, and then the frame is pushed, and the tiller can loosen the soil. However, when the tiller is not used, or when the tiller is moved on the road, if the tiller is kept in a downward state, the tip of the tiller will rub or collide with the road, which is not conducive to the movement and transfer when not tilling. Therefore, when the tiller is not loosening the soil, the tiller should be kept away from the ground so that the tiller can move normally.

[0004] Therefore, it is necessary to design a ripper that can switch the ripping blade between the working and non-working postures. Utility Model Content

[0005] In view of this, the utility model provides a scarifier, aiming to meet the technical requirements proposed by the background technology.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A tiller, comprising a frame and a tiller shovel, wherein the lower part of the frame is provided with a walking mechanism for controlling the movement thereof, and the characteristic is that: two fixing plates are arranged opposite to the upper part of the rear end of the frame, and the upper end of the tiller shovel is rotatably mounted between the two fixing plates, one of the fixing plates is provided with a mounting hole penetrating the thickness direction thereof, a locking component is slidably mounted in the mounting hole, an elastic element is arranged between the locking component and the fixing plate, and the elastic element can force the inner end of the locking component to protrude from the inner side of the fixing plate so as to restrict the tiller shovel to the upper side or the lower side of the locking component; the locking component has an operating part located on the outer side of the fixing plate, and the inner end of the locking component can be controlled by the operating part to be retracted into the mounting hole so that the tiller shovel can be switched between the upper side and the lower side of the locking component;

[0008] When the loosening shovel is restricted on the upper side of the locking component, the lower end of the loosening shovel is higher than the lowest point of the walking mechanism; when the loosening shovel is restricted on the lower side of the locking component, the lower end of the loosening shovel is lower than the lowest point of the walking mechanism.

[0009] With the above structure, when working, the operating part is pulled outward to make the inner end of the locking part retract into the mounting hole, and then the loosening shovel is rotated downward to make the distal end of the loosening shovel inserted into the soil, and then the operating part is released. Under the action of the elastic element, the locking part is reset. At this time, the inner end of the locking part is fixed and protrudes from the inner side of the fixing plate. Under the limiting action of the inner end of the locking part, the loosening shovel can maintain the working posture; when not working, the operating part is pulled outward to make the inner end of the locking part retract into the mounting hole, and then the loosening shovel is rotated upward to make the distal end of the loosening shovel away from the ground, and then the operating part is released and the locking part is reset. At this time, under the limiting action of the inner end of the locking part, the lower end of the loosening shovel can continue to maintain a posture higher than the driving road surface, thereby avoiding friction or collision between the shovel tip and the road surface, thereby ensuring that the loosener can travel and move normally.

[0010] Preferably: the locking component has a limiting tongue inside and a stop plate in the middle, the surface area of ​​the stop plate is larger than the longitudinal cross-section of the limiting tongue, and the limiting tongue is slidably supported in the mounting hole; a sleeve rod is provided on the outer wall of the fixing plate and is arranged perpendicular to the fixing plate, the sleeve rod passes through the stop plate and extends outward, the outer end of the sleeve rod has a limiting cap, the elastic element is sleeved on the sleeve rod, and the two ends of the elastic element respectively abut against the outer surface of the stop plate and the inner side of the limiting cap.

[0011] Preferably, the sleeve rods and the elastic elements are both in two groups, and both ends of the stop plate are provided with insertion holes adapted to the sleeve rods.

[0012] Preferably, the limiting tongue is a rectangular block or a cylindrical block.

[0013] Preferably, the loosening shovel comprises a shovel handle and a shovel head, a connecting piece is fixedly mounted on the shovel head, and the connecting piece is detachably fixed to the shovel handle. The above structure has the advantages of being easy to assemble, replace and repair.

[0014] As a preferred embodiment, two mounting seats are arranged on the frame, and the two fixing plates are both installed between the two mounting seats through fixing rods. The above structure is adopted to facilitate assembly.

[0015] Preferably, the number of the locking components is two groups, and the two groups of locking components are symmetrically assembled on the two fixing plates.

[0016] Preferably, a bracket is provided on the frame, which is used to ensure the tilt angle of the tiller shovel during operation.

[0017] Preferably, a support frame is provided at the lower side of the frame, and the walking mechanism comprises a driving wheel, a tensioning wheel, and a crawler track looped around the driving wheel and the tensioning wheel, and the driving wheel and the tensioning wheel are both rotatably mounted on the support frame.

[0018] Preferably, the support frame is provided with a horizontally arranged strip groove at the position corresponding to the tension wheel, and the axle of the tension wheel is adjustably mounted in the strip groove through a nut; the lower side of the support frame is rotatably mounted with supporting wheels distributed in an array, and the lower side of each supporting wheel is rollingly supported in the crawler. With the above structure, the tightness of the crawler can be adjusted by changing the front and rear installation positions of the tension wheel in the strip groove.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. When using the tiller provided by the utility model, when working, the operating part is pulled outward to make the inner end of the locking part shrink into the mounting hole, and then the tiller shovel is rotated downward to make the far end of the tiller shovel inserted into the soil, and then the operating part is released. Under the action of the elastic element, the locking part is reset. At this time, the inner end of the locking part is fixed and protrudes from the inner side of the fixing plate. Under the limiting action of the inner end of the locking part, the tiller shovel can maintain the working posture; when not working, the operating part is pulled outward to make the inner end of the locking part shrink into the mounting hole, and then the tiller shovel is rotated upward to make the far end of the tiller shovel away from the ground, and then the operating part is released and the locking part is reset. At this time, under the limiting action of the inner end of the locking part, the lower end of the tiller shovel can continue to maintain a posture higher than the driving road surface, thereby avoiding friction or collision between the shovel tip and the road surface, thereby ensuring that the tiller can travel and move normally.

[0021] 2. The tiller provided by the utility model can switch between the working and non-working postures of the tiller blade by installing the locking component, which has the advantages of simple structure and convenient operation. Moreover, such structural design cost is low and is suitable for daily use by most farmers.

[0022] 3. The loosening shovel adopts a split structure installation, which has the advantages of easy assembly, replacement and maintenance.

[0023] 4. The walking mechanism of the frame adopts a crawler structure, which can make the tiller run more stably in the farmland, thereby ensuring the quality and efficiency of tilling. At the same time, the crawler structure can greatly reduce the squeezing force of the tiller on the farmland, thereby reducing the damage and erosion to the soil.

[0024] 5. The tiller provided by the utility model can adjust the tightness of the track by changing the front and rear installation positions of the tension wheel in the strip groove, so as to adapt to use on different road surfaces or terrains. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a plan view of a scarifier;

[0026] Figure 2 A structural diagram showing the connection between the loosening blade 3 and the two fixing plates 2;

[0027] Figure 3 A cross-sectional view showing the locking member 4 being locked on the fixing plate 2;

[0028] Figure 4 It is a partial exploded schematic diagram of the locking component 4 and the fixing plate 2;

[0029] Figure 5 is a schematic diagram of the structure when the loosening blade 3 is restricted on the lower side of the locking component 4 (only the loosening blade 3, the fixing plate 2 and the locking component 4 are shown);

[0030] Figure 6 It is a schematic diagram of the structure when the tiller blade 3 is restricted on the upper side of the locking component 4 (only the tiller blade 3, the fixing plate 2 and the locking component 4 are shown). DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with embodiments and drawings.

[0032] like Figure 1 and 2 As shown, a tiller includes a frame 1, a traveling mechanism 5 and a tiller 3. The traveling mechanism 5 is arranged at the lower part of the frame 1 and is used to control the movement of the frame 1. Two fixed plates 2 are arranged opposite to the upper part of the rear end of the frame 1. The front end of the tiller 3 is rotatably installed between the two fixed plates 2 through a rotating shaft. Figure 3 As shown, one of the fixing plates 2 is provided with a mounting hole 21 that runs through the thickness direction thereof, and a locking component 4 is slidably mounted in the mounting hole 21. An elastic element 7 is provided between the locking component 4 and the fixing plate 2. The elastic element 7 can force the inner end of the locking component 4 to protrude from the inner side of the fixing plate 2 to limit the rotation range of the loosening shovel 3, thereby limiting the loosening shovel 3 to the upper side or lower side of the locking component 4. The locking component 4 has an operating portion 43 located on the outer side of the fixing plate 2. In this embodiment, the operating portion 43 is a T-shaped structure. Pulling the operating portion 43 outward can make the locking component 4 overcome the pulling force of the elastic element 7 and slide outward until the inner end of the locking component 4 is retracted in the mounting hole 21.

[0033] Based on the above structural design, the principle of switching between the working and non-working postures of the loosening shovel 3 is as follows: when the loosening machine is working, the operating part 43 is pulled outward to shrink the inner end of the locking part 4 into the mounting hole 21, and then the loosening shovel 3 is rotated downward to insert the rear end of the loosening shovel 3 into the soil, and then the operating part 43 is released. Under the elastic action of the elastic element 7, the locking part 4 can be reset. At this time, the inner end of the locking part 4 is fixedly protruded from the inner side of the fixing plate 2, and the inner end of the locking part 4 restricts the loosening shovel 3 to the lower side of the locking part 4 (refer to Figure 5 ), the loosening blade 3 can maintain the working posture; when the loosening machine is not working, the operating part 43 is pulled outward to shrink the inner end of the locking part 4 into the mounting hole 21, and then the loosening blade 3 is rotated upward to make the rear end of the loosening blade 3 away from the ground, and then the operating part 43 is released, and the locking part 4 is reset. At this time, the inner end of the locking part 4 restricts the loosening blade 3 to the upper side of the locking part 4 (refer to Figure 6 ), the ripping blade 3 can maintain a non-operating posture, thereby ensuring that the ripping machine can travel and move normally.

[0034] Further, such as Figure 3 and 4 As shown, the locking component 4 has a limiting tongue 41 inside and a stop plate 42 in the middle. The surface area of ​​the stop plate 42 is larger than the longitudinal section of the limiting tongue 41, and the limiting tongue 41 is slidably supported in the mounting hole 21. A sleeve rod 6 arranged perpendicularly thereto is provided on the outer wall of the fixing plate 2, and a socket 421 adapted to the sleeve rod 6 is provided at one end of the stop plate 42. The sleeve rod 6 passes through the socket 421 of the stop plate 42 and extends outward. A limiting cap 61 is provided at the outer end of the sleeve rod 6. An elastic element 7 is sleeved on the sleeve rod 6, and one end of the elastic element 7 abuts against the outer surface of the stop plate 42, and the other end abuts against the inner side of the limiting cap 61. The force applied by the elastic element 7 can fix the stop plate 42 against the outer end of the mounting hole 21. At this time, the distal end of the limiting tongue 41 protrudes from the inner side of the fixing plate 2, and can limit the loosening shovel 3 to the upper or lower side of the limiting tongue 41 (refer to Figure 5 and 6 ).

[0035] For example Figure 3 and 4 As shown, to ensure that the force applied by the elastic element 7 can be evenly distributed on the stop plate 42, the number of the sleeve rod 6, the elastic element 7 and the sockets 421 are two groups and correspond one to one, and the two groups of sockets 421 are distributed at both ends of the stop plate 42 in the length direction.

[0036] Please refer to Figure 4In order to facilitate the assembly of the locking component 4, in this embodiment, the limiting cap 61 is detachably mounted on the outer end of the sleeve rod 6. During assembly, the limiting tongue 41 of the locking component 4 is passed through the mounting hole 21, and at the same time, the two sets of sleeve rods 6 are respectively passed through the two insertion holes 421, and then the two sets of elastic elements 7 are respectively sleeved on the two sets of sleeve rods 6, and then the limiting cap 61 is fixed to the outer end of the sleeve rod 6 by means of threaded connection, thereby completing the installation of the locking component 4, which has the advantage of convenient installation.

[0037] Furthermore, the limiting tongue 41 is a rectangular block or a cylindrical block. In this embodiment, the limiting tongue 41 is a rectangular block, which can effectively limit the rotation of the tiller 3.

[0038] In order to further ensure the limiting effect of the limiting tongue 41 , the number of locking components 4 can be set to two groups, and the two groups of locking components 4 are symmetrically assembled on the two fixing plates 2 .

[0039] Please refer to Figure 2 The loosening shovel 3 includes a shovel handle 31 and a shovel head 32. A strip-shaped connecting member 33 is fixedly mounted on the shovel head 32. The connecting member 33 can be detachably fixed to the shovel handle 31 by fixing members such as screws. Such a design has the advantages of being easy to assemble, replace and repair.

[0040] Re-attend Figure 1 , two mounting seats 11 are provided at the upper rear end of the frame 1, combined with Figure 2 As shown, the two fixing plates 2 are installed between the two mounting seats 11 through the fixing rods 22 .

[0041] For example Figure 1 As shown, a bracket 12 is further provided on the frame 1. During operation, the inner side of the loosening shovel 3 rests against the bracket 12, which can ensure the tilt angle of the loosening shovel 3 during operation, thereby achieving a good loosening effect.

[0042] Please refer to Figure 1 , a support frame 1a is fixedly arranged at the lower side of the frame 1, and the walking mechanism 5 includes a driving wheel 51, a tensioning wheel 53, and a crawler 54 looped on the driving wheel 51 and the tensioning wheel 53. The driving wheel 51 is rotatably mounted at the front end of the support frame 1a, and the tensioning wheel 53 is rotatably mounted at the rear end of the support frame 1a. Four supporting wheels 52 distributed in an array are rotatably mounted at the lower side of the support frame 1a, and the lower side of each supporting wheel 52 is rollingly supported in the crawler 54. Furthermore, an engine 8 is arranged at the upper front end of the frame 1, and the engine 8 is connected to the driving wheel 51 through a gearbox 9, and the gearbox 9 is mounted at a position corresponding to the engine 8 at the lower side of the frame 1. Based on this, when the engine 8 is working, it can drive the driving wheel 51 to rotate through the gearbox 9, thereby realizing the walking function.

[0043] Re-attend Figure 1The support frame 1a is provided with a horizontally arranged strip groove 1a1 at the position corresponding to the tension wheel 53, and the axle of the tension wheel 53 is adjustably mounted in the strip groove 1a1 through a nut. By changing the front and rear installation positions of the tension wheel 53 in the strip groove 1a1, the tightness of the track 54 can be adjusted to adapt to use on different road surfaces or terrains.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A tiller, comprising a frame (1) and a tiller blade (3), wherein a walking mechanism (5) for controlling the movement of the frame (1) is provided at the lower part thereof, wherein: Two fixing plates (2) are arranged opposite to the upper part of the rear end of the frame (1), and the upper end of the loosening shovel (3) is rotatably mounted between the two fixing plates (2), one of the fixing plates (2) is provided with a mounting hole (21) penetrating the thickness direction thereof, and a locking component (4) is slidably mounted in the mounting hole (21), and an elastic element (7) is arranged between the locking component (4) and the fixing plate (2), and the elastic element (7) can force the inner end of the locking component (4) to protrude from the inner side of the fixing plate (2) so as to restrict the loosening shovel (3) to the upper side or the lower side of the locking component (4); the locking component (4) has an operating part (43) located on the outer side of the fixing plate (2), and the inner end of the locking component (4) can be controlled by the operating part (43) to be able to retract into the mounting hole (21), so that the loosening shovel (3) can be switched between the upper side and the lower side of the locking component (4); When the loosening shovel (3) is restricted on the upper side of the locking component (4), the lower end of the loosening shovel (3) is higher than the lowest point of the walking mechanism (5); when the loosening shovel (3) is restricted on the lower side of the locking component (4), the lower end of the loosening shovel (3) is lower than the lowest point of the walking mechanism (5).

2. The tiller according to claim 1, characterized in that: The locking component (4) has a limiting tongue (41) inside and a stop plate (42) in the middle, the surface area of ​​the stop plate (42) is larger than the longitudinal cross section of the limiting tongue (41), and the limiting tongue (41) is slidably supported in the mounting hole (21); a sleeve rod (6) arranged perpendicularly thereto is provided on the outer wall of the fixing plate (2), the sleeve rod (6) passes through the stop plate (42) and extends outward, and a limiting cap (61) is provided at the outer end of the sleeve rod (6), and the elastic element (7) is sleeved on the sleeve rod (6), and the two ends of the elastic element (7) respectively abut against the outer surface of the stop plate (42) and the inner side of the limiting cap (61).

3. The tiller according to claim 2, characterized in that: The sleeve rods (6) and the elastic elements (7) are both provided in two groups, and both ends of the stop plate (42) are provided with insertion holes (421) adapted to the sleeve rods (6).

4. The tiller according to claim 2, characterized in that: The limiting tongue (41) is a rectangular block or a cylindrical block.

5. The tiller according to claim 1, characterized in that: The loosening shovel (3) comprises a shovel handle (31) and a shovel head (32). A connecting piece (33) is fixedly mounted on the shovel head (32), and the connecting piece (33) is detachably fixed on the shovel handle (31).

6. The scarifier according to claim 1, characterized in that: Two mounting seats (11) are provided on the frame (1), and the two fixing plates (2) are both installed between the two mounting seats (11) via fixing rods (22).

7. The scarifier according to claim 1, characterized in that: The number of the locking components (4) is two groups, and the two groups of locking components (4) are symmetrically assembled on the two fixing plates (2).

8. The scarifier according to claim 1, characterized in that: The frame (1) is provided with a bracket (12) for ensuring the tilt angle of the tiller shovel (3) during operation.

9. The scarifier according to claim 1, characterized in that: A support frame (1a) is provided at the lower side of the frame (1); the walking mechanism (5) comprises a driving wheel (51), a tensioning wheel (53), and a crawler belt (54) sleeved on the driving wheel (51) and the tensioning wheel (53); the driving wheel (51) and the tensioning wheel (53) are both rotatably mounted on the support frame (1a).

10. The scarifier according to claim 9, characterized in that: The support frame (1a) is provided with a strip groove (1a1) arranged in the horizontal direction at the position corresponding to the tensioning wheel (53), and the wheel axle of the tensioning wheel (53) is adjustably mounted in the strip groove (1a1) through a nut; the lower side of the support frame (1a) is rotatably mounted with supporting wheels (52) distributed in an array, and the lower side of each supporting wheel (52) is rollingly supported in the crawler (54).

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