Rotary cultivator and gardening tool

Abstract

The utility model provides a rotary cultivator and a gardening tool. The device comprises a rack, a walking mechanism, a tilling cutter assembly, a power source assembly and a balance weight. The walking mechanism is installed on the rack and comprises walking wheels. The tillage blade assembly is installed on the rack and used for rotary tillage operation. The power source assembly is installed on the machine frame and provides power for operation of the tillage blade assembly and / or walking of the machine frame. The counter weight is arranged on the rack to adjust the gravity center position of the rotary cultivator; wherein the counter weight is adjustably mounted on the rack through the position of the adjusting structure. The rotary cultivator can meet the performance requirements that an operator can operate the rotary cultivator in a labor-saving and convenient mode under the three different working states of flat land cultivation, sloping field cultivation and pushing transportation.

Description

Technical Field

[0001] The utility model relates to the field of garden tools, in particular to a rotary tiller and a garden tool. Background Art

[0002] A rotary tiller is a common soil working tool, usually used for soil remediation in gardening and yards. During the operation of a rotary tiller, there are generally three common working states: flat land tillage, slope land tillage, and push transportation. In the three different working states of flat land tillage, slope land tillage, and push transportation, in order to keep the rotary tiller running in a balanced manner, the operator uses different amounts of force when operating the rotary tiller. When designing the center of gravity position of the rotary tiller, it is usually designed according to the requirements of flat land tillage. Therefore, it cannot take into account the working states of slope land tillage and push transportation. As a result, the rotary tiller often has problems of laborious and inconvenient operation when performing slope land tillage and push transportation, which makes the operator experience poor. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the utility model provides a rotary tiller and a garden tool to meet the operator's performance requirements for labor-saving and convenient operation of the rotary tiller in three different working states: flat land tillage, sloping land tillage and push and transport.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a rotary tiller, which includes: a frame, a traveling mechanism, a tilling blade assembly, a power source assembly and a counterweight; the traveling mechanism is installed on the frame, and the traveling mechanism includes traveling wheels; the tilling blade assembly is installed on the frame for rotary tilling operation; the power source assembly is installed on the frame to provide power for the operation of the tilling blade assembly and / or the travel of the frame; the counterweight is arranged on the frame to adjust the center of gravity position of the rotary tiller; wherein the counterweight is adjustably mounted on the frame by adjusting the structural position.

[0005] In an example of the rotary tiller of the utility model, the adjustment structure adjusts the position of the counterweight along the traveling direction of the frame.

[0006] In an example of the rotary tiller of the utility model, the frame includes a main frame body and a counterweight mounting frame, the counterweight mounting frame is fixedly mounted on the main frame body; the counterweight is adjustably mounted on the counterweight mounting frame by adjusting the structural position.

[0007] In an example of the rotary tiller of the utility model, the frame includes a main frame body and a counterweight mounting frame, the counterweight is fixedly mounted on the counterweight mounting frame, and the counterweight mounting frame is adjustably mounted on the main frame body by adjusting the structural position.

[0008] In one example of a rotary tiller of the utility model, the adjustment structure includes a first mounting part and a second mounting part, the first mounting part is arranged on one of the main frame and the counterweight mounting frame, and the second mounting part is arranged on the other of the main frame and the counterweight mounting frame, the first mounting part is snap-connected with the second mounting part, and has multiple mounting fixing positions relative to the second mounting part.

[0009] In an example of the rotary tiller of the utility model, the first mounting portion includes a cylindrical hole, and the second mounting portion includes a cylindrical surface, and the cylindrical surface is clamped in the cylindrical hole.

[0010] In an example of the rotary tiller of the utility model, the adjustment structure also includes a locking component, which is arranged on the first mounting portion and / or the second mounting portion to fix the second mounting portion in a corresponding mounting position.

[0011] In one example of the rotary tiller of the utility model, the locking assembly includes a stopper and a plurality of adjustment holes. Along the traveling direction of the rotary tiller, the plurality of adjustment holes are arranged at intervals on the first mounting part and / or the second mounting part, and the stopper is clamped in the adjustment hole.

[0012] In an example of the rotary tiller of the utility model, the counterweight includes a box body and a counterweight assembly. The box body is installed on the frame in an adjustable position, and the counterweight assembly is installed in the box body.

[0013] In one example of the rotary tiller of the utility model, the power source assembly includes a first battery pack for providing electrical energy for the operation of the tilling blade assembly and / or the travel of the frame; the casing includes a first chamber and a second chamber, and at least one of the first chamber and the second chamber is configured to accommodate a second battery pack and / or a counterweight assembly.

[0014] The utility model also provides a garden tool, which includes: a frame, a traveling mechanism, a working component, a power source component and a counterweight; the traveling mechanism is installed on the frame, and the traveling mechanism includes traveling wheels; the working component is installed on the frame to perform gardening operations; the power source component is installed on the frame to provide power for the operation of the working component and / or the travel of the frame; the counterweight is arranged on the frame to adjust the center of gravity position of the garden tool; wherein the counterweight is adjustably installed on the frame by adjusting the structural position.

[0015] The rotary tiller provided by the utility model is provided with a counterweight on the frame, and the counterweight is adjustably mounted on the frame by adjusting the structural position, so that the center of gravity position of the entire rotary tiller can be adjusted. By adjusting the position of the counterweight on the frame, the center of gravity position of the entire rotary tiller can be matched with the three different working states of the rotary tiller, namely, flat land tillage, sloping land tillage and pushing and transporting, thereby satisfying the operator's performance requirements for labor-saving and convenient operation of the rotary tiller in the three different working states of flat land tillage, sloping land tillage and pushing and transporting. 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 in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional overall structural schematic diagram of an embodiment of the rotary tiller of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram from another angle of an embodiment of the rotary tiller of the utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram from another angle of an embodiment of the rotary tiller of the utility model;

[0020] Figure 4 for Figure 3 A partial enlarged view of the middle A area;

[0021] Figure 5 This is a structural schematic diagram of a rotary tiller according to an embodiment of the utility model in which the first housing is not equipped with the first cover plate;

[0022] Figure 6 for Figure 5 A partial enlarged view of the middle B area;

[0023] Figure 7 This is a structural schematic diagram of a first cover plate installed on a first housing in an embodiment of a rotary tiller of the utility model;

[0024] Figure 8 for Figure 7 A partial enlarged view of the middle C area;

[0025] Fig. 9 It is a partial structural schematic diagram of a tilling blade assembly in one embodiment of the rotary tiller of the utility model;

[0026] Fig.10 It is a partial cross-sectional view of an embodiment of the rotary tiller of the utility model;

[0027] Fig.11 for Fig.10 A partial enlarged view of the middle area D;

[0028] Fig.12 It is a partial structural schematic diagram of the handrail assembly in one embodiment of the rotary tiller of the utility model;

[0029] Fig.13 It is a partial structural diagram of a frame and a traveling mechanism in an embodiment of the rotary tiller of the utility model;

[0030] Fig.14 for Fig.13 A partial enlarged view of the middle E area;

[0031] Fig.15 It is a partial installation diagram of a counterweight on a counterweight mounting frame in an embodiment of a rotary tiller of the utility model;

[0032] Fig.16 This is a structural schematic diagram of a rotary tiller according to an embodiment of the utility model, in which a box body is provided with a first chamber and a second chamber.

[0033] Component number description

[0034] 1000, rotary tiller; 100, frame; 101, main frame; 102, counterweight mounting frame; 1021, support part; 1022, stopper; 110, walking mechanism; 111, walking wheel; 112, first drive motor; 113, first transmission assembly; 114, first transmission shaft; 200, third housing; 201, third accommodating chamber; 210, fourth housing; 220, first housing; 221, first accommodating chamber; 222, first cover plate; 230, second housing; 232, first support frame; 300, tilling blade assembly; 310, second drive motor; 320, tilling blade; 330, second transmission assembly; 340, second transmission shaft; 4 00, power source assembly; 410, first battery pack; 420, second battery pack; 500, box; 501, first chamber; 502, second chamber; 510, lower box; 520, cover; 521, first cover; 522, second cover; 600, adjustment structure; 610, first mounting portion; 611, cylindrical surface; 620, second mounting portion; 621, cylindrical hole; 630, locking assembly; 631, stopper; 632, first adjustment hole; 633, second adjustment hole; 700, armrest assembly; 710, mounting seat; 711, snap-in groove; 720, handle; 730, positioning rod; 900, counterweight; 910, counterweight assembly. DETAILED DESCRIPTION

[0035] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0036] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0037] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0038] See also Figures 1 to 16 The utility model provides a rotary tiller 1000 and a garden tool. The rotary tiller 1000 is provided with a counterweight 900 on a frame 100, and the counterweight 900 is adjustably mounted on the frame 100 through an adjusting structure 600, so that the center of gravity position of the rotary tiller 1000 can be adjusted, so that the center of gravity position of the rotary tiller 1000 can be matched with three different working states of the rotary tiller 1000: flat land tillage, slope land tillage and push transportation, thereby meeting the operator's performance requirements for labor-saving and convenient operation of the rotary tiller 1000 in the three different working states of flat land tillage, slope land tillage and push transportation.

[0039] See also Figures 1 to 11In an example of the rotary tiller 1000 of the utility model, the rotary tiller 1000 includes: a frame 100, a walking mechanism 110, a tiller assembly 300, a power source assembly 400 and a counterweight 900. The specific structural form of the frame 100 is not limited. The frame 100 can be a welded part or a sheet metal bending part, as long as the strength and rigidity requirements of the rotary tiller 1000 are met. A first shell 220 is provided on the frame 100. The first shell 220 has a first accommodating chamber 221. The first shell 220 can be a part of the frame 100, or a separate part fixedly connected to the frame 100 by bolts, etc. In this embodiment, the first shell 220 is a part of the frame 100, and the first accommodating chamber 221 is located on the side of the frame 100 facing the ground. The walking mechanism 110 includes a first driving part, a first transmission shaft 114 and two walking wheels 111. The driving unit provides power for the rotation of the first transmission shaft 114, and the driving unit can be a motor, a motor + reducer, a motor + rack and pinion transmission mechanism, or a motor + lead screw nut transmission mechanism, etc., any transmission mechanism that can meet the requirements. In the present embodiment, the driving unit includes a first driving motor 112 and a first transmission assembly 113, and the first transmission assembly 113 can be a multi-stage gear transmission structure, or a worm gear transmission structure, etc., and no specific restrictions are made to this. The first driving motor 112 is fixedly mounted on the wall of the first housing 220 by bolts, and is located in the first accommodating chamber 221. The first transmission assembly 113 is also located in the first accommodating chamber 221, and the input end of the first transmission assembly 113 is connected to the output end of the first driving motor 112, and the output end of the first transmission assembly 113 is transmission-connected to the first transmission shaft 114. The first transmission shaft 114 has two ends in the length direction that penetrate through the two side walls of the first housing 220 and extend toward the outside of the first accommodating chamber 221. The first transmission shaft 114 is rotatably mounted on the wall of the first housing 220 through a slewing bearing. The two running wheels 111 are respectively fixedly mounted on the two ends of the first transmission shaft 114. The first driving motor 112 runs, driving the first transmission assembly 113 to run, and then driving the first transmission shaft 114 to rotate. The first transmission shaft 114 drives the running wheels 111 at both ends to rotate, thereby realizing the running of the rack 100.

[0040] Please note that Figures 5 to 7 A first cover plate 222 is further provided at the opening of the first housing 220, and the first cover plate 222 is fixedly connected to the wall of the first housing 220 by bolts. The first cover plate 222 can form a shielding effect at the opening of the first accommodating cavity 221, thereby protecting the first drive motor 112 and the first transmission assembly 113 in the first accommodating cavity 221 and improving their service life.

[0041] See also Figure 3 , Figure 7 and Figure 8, along the working direction of the rotary tiller 1000, a tilling blade assembly 300 is installed at the rear end of the frame 100, and the tilling blade assembly 300 is fixedly connected to the frame 100, and the fixed connection method includes but is not limited to bolt connection. The tilling blade assembly 300 includes a second driving unit, a second transmission assembly 330, a tilling blade 320 and a second transmission shaft 340. The second driving unit provides power for the rotation of the second transmission shaft 340, and the second driving unit can be a motor, a motor+reducer, a motor+gear rack transmission mechanism, or a motor+screw nut transmission mechanism, etc., any transmission mechanism that can meet the requirements. In this embodiment, the second driving unit includes a second driving motor 310 and a second transmission assembly 330, and the second transmission assembly 330 can be a multi-stage gear transmission structure, or a worm gear transmission structure, etc. The second driving motor 310 is fixedly connected to the frame 100 by bolts. A second housing 230 is provided above the tiller assembly 300. The second housing 230 is fixedly connected to the frame 100 by bolts, and is covered above the tiller assembly 300 to protect the tiller assembly 300. The output end of the second drive motor 310 penetrates the wall of the second housing 230 and extends into the second housing 230. The second transmission assembly 330 is located in the second housing 230 and is fixedly connected to the wall of the second housing 230 by bolts. The input end of the second transmission assembly 330 is connected to the output end of the second drive motor 310, and the output end of the second transmission assembly 330 is fixedly connected to the second transmission shaft 340. The second transmission assembly 330 can be a gear reduction box mechanism, a pulley transmission mechanism, a sprocket transmission mechanism, etc.

[0042] In this example, see Figure 3 , Figure 7 and Figure 8 The second transmission assembly 330 is a gear reduction box mechanism. In the second housing 230, the gear reduction box extends obliquely downward from one side of the second drive motor 310 to the rear end of the frame 100. A first support frame 232 is also provided in the second housing 230. The first support frame 232 is located below the second transmission assembly 330. One end of the first support frame 232 is fixedly connected to the wall of the second housing 230. The other end of the first support frame 232 extends toward the gear reduction box side and is fixedly connected to the housing of the gear reduction box to form support for the lower part of the gear reduction box. The second transmission shaft 340 and the tilling blade 320 are both provided in the second housing 230. The second transmission shaft 340 extends along the width direction of the rotary tiller 1000. A plurality of tilling blades 320 are arranged at intervals along the length direction of the second transmission shaft 340, and the plurality of tilling blades 320 are all fixedly connected to the second transmission shaft 340. The second driving motor 310 rotates to drive the second transmission assembly 330 to operate, the second transmission assembly 330 drives the second transmission shaft 340 to rotate, and the second transmission shaft 340 drives the tilling blade 320 to rotate, thereby performing rotary tillage on the working ground.

[0043] See also Figure 2 , Fig.10 and Fig.11 A third housing 200 is also disposed above the frame 100, and the third housing 200 is fixedly connected to the frame 100 by bolts. A third accommodating chamber 201 is formed between the third housing 200, the frame 100 and the second housing 230, and the second drive motor 310 is disposed in the third accommodating chamber 201.

[0044] The power source assembly 400 is installed on the frame 100 to provide power for the operation of the tiller assembly 300 and / or the travel of the frame 100. In this embodiment, the power source assembly 400 includes a plurality of first battery packs 410, and the plurality of first battery packs 410 can be connected in series, in parallel or in a mixed connection. The plurality of first battery packs 410 can simultaneously power the first drive motor 112 and the second drive motor 310, or can only power one of the first drive motor 112 and the second drive motor 310, and there is no specific limitation on this. In order to reduce the collision loss of the first battery pack 410 during operation, in this embodiment, a fourth housing 210 is provided above the frame 100, and the fourth housing 210 is fixedly installed on the frame 100 by bolts, and the first battery pack 410 is arranged in the fourth housing 210. A wiring hole can be opened at the bottom end of the fourth housing 210, and the first drive motor 112 is electrically connected to the first battery pack 410 through the wiring hole.

[0045] In order to facilitate the operator to grip the rotary tiller 1000, in this embodiment, refer to Figures 10 to 12 The rotary tiller 1000 is provided with an armrest assembly 700, which includes a mounting seat 710 and a handle 720. The mounting seat 710 is connected to the frame 100, one end of the handle 720 is fixedly connected to the mounting seat 710, and the other end of the handle 720 extends toward the rear end of the frame 100. The armrest assembly 700 can be connected to the frame 100 with an adjustable angle, or it can be connected to the frame 100 with an unadjustable angle. In this embodiment, the mounting seat 710 is rotatably connected to the frame 100, and the armrest assembly 700 also includes a positioning rod 730, which is fixedly connected to the frame 100 or other parts fixedly connected to the frame 100. The mounting seat 710 is a disc structure, and the outer periphery of the mounting seat 710 is provided with a plurality of clamping grooves 711, and the plurality of clamping grooves 711 can be respectively clamped with the positioning rod 730 during the rotation of the mounting seat 710, thereby realizing the fixing of the handle 720 at different installation angles.

[0046] See also Figures 2 to 4, the counterweight 900 is arranged on the frame 100 to adjust the center of gravity of the rotary tiller 1000; wherein, the counterweight 900 is adjustably mounted on the frame 100 through the adjustment structure 600. The counterweight 900 can be arranged at the front end, middle or rear end of the frame 100, etc., and the specific position needs to be arranged according to the center of gravity of the rotary tiller 1000. In this embodiment, please refer to Fig.11 , along the working direction of the rotary tiller 1000, the tilling blade assembly 300 is located at the rear end of the running wheel 111, and the power source assembly 400 is arranged at the front end of the running wheel 111. The counterweight 900 is installed at the front end of the frame 100 through the adjustment structure 600, and is located at the front side of the power source assembly 400. The adjustment of the center of gravity position of the rotary tiller 1000 by the counterweight 900 can be the adjustment of the center of gravity position in the front-to-back direction, or the adjustment of the center of gravity position in the left-to-right direction, etc., and no specific limitation is made to this. In the present embodiment, the adjustment of the center of gravity position of the rotary tiller 1000 by the counterweight 900 refers to the adjustment of the center of gravity position in the front-to-back direction. There are many options for the specific structure of the adjustment structure 600, such as a telescopic rod structure, a sliding rod slot clamping structure, etc., as long as the movement of the counterweight 900 relative to the front-to-back position of the frame 100 can be achieved.

[0047] The rotary tiller 1000 provided by the utility model is provided with a counterweight 900 on the frame 100, and the counterweight 900 is installed on the frame 100 in an adjustable manner through an adjustment structure 600, so that the center of gravity position of the rotary tiller 1000 can be adjusted. When cultivating on normal flat land, the counterweight 900 can be moved to the side close to the running wheel 111, so as to ensure the downward force required for the operation of the flat land tillage blade 320 and reduce the downward force of the operator, and at the same time, it can make the operator more labor-saving when the tillage blade assembly 300 is lifted up to turn; when cultivating on sloping land, the counterweight 900 can be moved to the side away from the running wheel 111, so as to ensure the downward force required for the operation of the sloping land tillage blade 320 and reduce the downward force of the operator, and at the same time, it can make the operator more labor-saving when the tillage blade assembly 300 is lifted up to turn; when promoting transportation, the counterweight 900 can be further moved to the side away from the running wheel 111, so as to facilitate the operator to keep the tillage blade assembly 300 in the lifted state for promoting transportation.

[0048] In an example of the rotary tiller 1000 of the utility model, the frame 100 includes a main frame 101 and a counterweight mounting frame 102, and the counterweight mounting frame 102 is fixedly mounted on the main frame 101; the fixed mounting method includes but is not limited to bolt fixed connection. The counterweight 900 is adjustably mounted on the counterweight mounting frame 102 through the adjustment structure 600. Specifically, a plurality of mounting positions can be set on the counterweight mounting frame 102 along the working direction of the rotary tiller 1000. When the rotary tiller 1000 is in different working states, the counterweight 900 is moved to the mounting positions at different positions respectively through the adjustment structure 600, thereby playing a role in adjusting the center of gravity position of the whole machine. In this way, when adjusting the position of the counterweight 900 relative to the frame 100, it is only necessary to move the position of the counterweight 900 on the counterweight mounting frame 102, without changing the connection position between the counterweight mounting frame 102 and the frame 100, which is more convenient and labor-saving to operate.

[0049] See also Figures 2 to 4 In an example of the rotary tiller 1000 of the utility model, the counterweight 900 is fixedly mounted on the counterweight mounting frame 102, and the counterweight mounting frame 102 is adjustably mounted on the main frame 101 through the adjustment structure 600. The counterweight mounting frame 102 includes a support portion 1021 and a stop portion 1022, one end of the support portion 1021 is connected to the main frame 101 through the adjustment structure 600, and the other end of the support portion 1021 is connected to one end of the stop portion 1022, and the other end of the stop portion 1022 extends toward a side away from the ground. The bottom wall of the counterweight 900 is fixedly connected to the support portion 1021 by bolts, and a side wall of the counterweight 900 abuts against the stop portion 1022 and is fixedly connected by bolts. With this arrangement, during the movement of the counterweight 900 relative to the frame 100, it is only necessary to move the position between the counterweight mounting frame 102 and the main frame 101, without changing the position of the counterweight 900 on the counterweight mounting frame 102. This ensures that the counterweight 900 and the counterweight mounting frame 102 are relatively stably and reliably connected, reduces the probability of the counterweight 900 becoming loose during the operation of the tiller blade assembly 300, and further ensures the stability of the rotary tiller 1000 during operation.

[0050] See also Figure 3 and Figure 4In an example of the rotary tiller 1000 of the utility model, the adjustment structure 600 includes a first mounting portion 610 and a second mounting portion 620, wherein the first mounting portion 610 is arranged on the main frame 101, and the second mounting portion 620 is arranged on the counterweight mounting frame 102. The first mounting portion 610 is connected to the second mounting portion 620 by snapping, and the first mounting portion 610 has a plurality of mounting positions relative to the second mounting portion 620. The first mounting portion 610 may be integrally connected to the main frame 101, or may be a separate part fixedly connected to the main frame 101 by bolts or welding; the second mounting portion 620 may be integrally connected to the counterweight mounting frame 102, or may be a separate part fixedly connected to the counterweight mounting frame 102 by bolts or welding. Preferably, in the present embodiment, the first mounting portion 610 is a separate part, and the first mounting portion 610 is fixedly connected to the main frame 101 by bolts; the second mounting portion 620 is integrally connected to the counterweight mounting frame 102. There are many options for the snap connection between the first mounting portion 610 and the second mounting portion 620, such as a slide bar slot snap connection, a groove bump snap connection, etc., as long as the second mounting portion 620 can be fixed at multiple mounting positions of the first mounting portion 610. By setting the first mounting portion 610 and the second mounting portion 620 to be snap-connected, the movement of the counterweight mounting frame 102 relative to the main frame 101 can be facilitated, and the adjustment efficiency of the counterweight 900 relative to the frame 100 can be improved.

[0051] It should be noted that, in other embodiments, the first mounting portion 610 may be disposed on the counterweight mounting frame 102, and the second mounting portion 620 may be disposed on the main frame body 101. The beneficial effects of the above embodiments may also be achieved.

[0052] In order to ensure the stability of the installation between the counterweight mounting frame 102 and the main frame body 101, in the embodiment of the present application, please refer to Fig.13 and Fig.14 Along the width direction of the rotary tiller 1000, first mounting portions 610 are respectively provided on both sides of the main frame 101, and second mounting portions 620 are respectively provided on both sides of the counterweight mounting frame 102, and the first mounting portion 610 on the same side is snap-connected with the second mounting portion 620 on the same side.

[0053] See also Figure 3 , Figure 4 and Fig.14In an example of the rotary tiller 1000 of the present utility model, the second mounting portion 620 includes a cylindrical surface 611, and the first mounting portion 610 includes a cylindrical hole 621, and the cylindrical surface 611 is snapped into the cylindrical hole 621. The cylindrical surface 611 and the cylindrical hole 621 are approximately coaxially arranged, and the outer diameter of the cylindrical surface 611 matches the inner diameter of the cylindrical hole 621. The cylindrical surface 611 can slide in the cylindrical hole 621 under the action of an external force, and the sliding direction is consistent with the travel direction of the rotary tiller 1000. When the cylindrical surface 611 is pushed and pulled along the travel direction of the rotary tiller 1000, the cylindrical surface 611 will produce axial slippage in the cylindrical hole 621, so that the first mounting portion 610 is displaced relative to the second mounting portion 620, and the position adjustment of the counterweight 900 relative to the frame 100 is achieved. With such an arrangement, through the mutual cooperation between the cylindrical hole 621 and the cylindrical surface 611, a better guiding effect can be played during the movement, which can not only reduce the lateral offset error occurring during the movement of the counterweight 900, but also facilitate the displacement adjustment between the first mounting part 610 and the second mounting part 620.

[0054] See also Figure 3 and Figure 4 In an example of the rotary tiller 1000 of the utility model, the adjustment structure 600 also includes a locking assembly 630, and the locking assembly 630 is arranged on the first mounting part 610 and the second mounting part 620 to fix the second mounting part 620 in the corresponding mounting and fixing position. The locking assembly 630 can have a variety of structural forms. For example, the locking assembly 630 can be a locking rod and a plurality of locking holes arranged on the first mounting part 610 and the second mounting part 620, and the locking rod can be respectively inserted into the locking holes at different positions; the locking assembly 630 can also be an existing clamping member, and the clamping member is sleeved on the outside of the cylindrical surface 611 of the first mounting part 610, and the cylindrical hole 621 is tightened, so that the cylindrical hole 621 and the cylindrical surface 611 are pressed and locked. As long as the second mounting part 620 can be fixedly installed in the corresponding mounting and fixing position on the first mounting part 610, the specific structure of the locking assembly 630 is not limited. By providing the locking assembly 630, the stability of the first mounting portion 610 in different mounting positions can be improved, the probability of displacement of the counterweight 900 during operation of the rotary tiller 1000 can be reduced, and the stability of the rotary tillage operation of the rotary tiller 1000 can be improved.

[0055] See also Figure 3 and Figure 4In an example of the rotary tiller 1000 of the utility model, the locking assembly 630 includes a stopper 631 and a plurality of adjustment holes. The plurality of adjustment holes include a first adjustment hole 632 provided on the first mounting portion 610 and a second adjustment hole 633 provided on the second mounting portion 620; along the travel direction of the rotary tiller 1000, the plurality of first adjustment holes 632 and the plurality of second adjustment holes 633 are respectively provided on the first mounting portion 610 and the second mounting portion 620 along a straight line at intervals. By moving the second mounting portion 620 forward and backward relative to the first mounting portion 610, the first adjustment holes 632 at different positions correspond to the second adjustment holes 633 at different positions, and the stopper 631 is respectively inserted into the corresponding first adjustment hole 632 and the second adjustment hole 633, so that the first mounting portion 610 and the second mounting portion 620 can be fixedly connected at the front and rear adjustment positions. Thus, the position adjustment of the counterweight 900 relative to the frame 100 in the front and rear direction is achieved. In this embodiment, the stopper 631 can be a bolt fastener or a structural member such as a pin shaft, and correspondingly, the adjustment hole can be a threaded hole or a pin hole, etc., as long as a fixed connection between the first mounting part 610 and the second mounting part 620 at different adjustment positions can be achieved.

[0056] See also Figure 4 In one example of the rotary tiller 1000 of the utility model, the stopper 631 is a threaded fastener, such as a screw, a bolt, etc.; the first adjustment hole 632 is a light hole, and the second adjustment hole 633 is a threaded hole, and the threaded fastener passes through the light hole and is screwed into the threaded hole. In other embodiments, the first adjustment hole 632 and the second adjustment hole 633 may both be light holes, and the threaded fastener passes through the first adjustment hole 632 and the second adjustment hole 633, and is screwed onto the end of the threaded fastener by a nut thread, which can also achieve fixed connection of the threaded fastener in the first adjustment hole 632 and the second adjustment hole 633.

[0057] In this example, see Figure 3 and Figure 4 Along the travel direction of the rotary tiller 1000, three first adjustment holes 632 are provided, and the spacing between adjacent first adjustment holes 632 is 50 mm. One or more second adjustment holes 633 can be provided, as long as at least one second adjustment hole 633 corresponds to one first adjustment hole 632 at different adjustment positions. Figure 4(shown in the X-axis direction), the positions of the three first adjustment holes 632 arranged in sequence are the first adjustment position, the second adjustment position and the third adjustment position. When the rotary tiller 1000 is used for flat land cultivation, any one of the second adjustment holes 633 on the second mounting portion 620 corresponds to the first adjustment hole 632 located at the first adjustment position, and the threaded fastener is screwed into the second adjustment hole 633, so that the counterweight 900 is installed in the first adjustment position relative to the frame 100. At this time, on the side of the handrail assembly 700, the operator can lift the tilling blade assembly 300 upward by applying a force of 60 to 70N, which is convenient for the turning operation of the whole machine in flat land cultivation. At the same time, at this position, the whole machine also has a good tillage grip. When the rotary tiller 1000 is used for sloping land cultivation, the same second adjustment hole 633 on the second mounting portion 620 corresponds to the first adjustment hole 632 located at the second adjustment position, and the threaded fastener is screwed into the second adjustment hole 633, so that the counterweight 900 is installed in the second adjustment position relative to the frame 100. At this time, on the side of the handrail assembly 700, the operator can apply a force of 50 to 60N to lift the tiller assembly 300 upward, which is convenient for the turning operation of the whole machine during sloping land cultivation. At the same time, at this position, the whole machine also has a good tillage grip. When the rotary tiller 1000 is pushed for transportation, the same second adjustment hole 633 on the second mounting portion 620 corresponds to the first adjustment hole 632 located at the third adjustment position, and the threaded fastener is tightened in the second adjustment hole 633, so that the counterweight 900 is installed at the third adjustment position relative to the frame 100. At this time, on the side of the handrail assembly 700, the operator can apply a force of 50 to 45N to lift the tiller assembly 300 upward, which is convenient for the long-distance pushing and transportation of the rotary tiller 1000.

[0058] In the embodiment of the present application, the counterweight 900 may be a counterweight block, or a counterweight box, or any other structure that can function as the counterweight 900. Preferably, refer to Fig.10 , Fig.11 , Fig.15 and Fig.16 In an example of the rotary tiller 1000 of the utility model, the counterweight 900 includes a box 500 and a counterweight assembly 910. The box 500 is fixedly connected to the counterweight mounting frame 102 by bolts. The specific structure of the box 500 is not limited. The box 500 can be a closed structure or a semi-closed structure, etc. The counterweight assembly 910 is installed in the box 500. The counterweight assembly 910 can be any item that can serve as the counterweight 900, such as sand, soil, maintenance tools, seeds or fertilizers. By setting the box 500, the types of items in the counterweight 900 can be expanded, so that the selection of items in the counterweight 900 can be more flexible and convenient.

[0059] See also Fig.11 , Fig.16In an example of the rotary tiller 1000 of the utility model, the housing 500 includes a first chamber 501 and a second chamber 502, and at least one of the first chamber 501 and the second chamber 502 is configured to accommodate a second battery pack 420 and / or a counterweight assembly 910. The first chamber 501 and the second chamber 502 may have the same shape or different shapes, and the specific shape is not limited. In this embodiment, a second battery pack 420 is arranged in the first chamber 501, and the second battery pack 420 can be electrically connected to the first battery pack 410 to provide electrical energy in time when the rotary tiller 1000 is low on power, thereby improving the endurance of the rotary tiller 1000. In other embodiments, the second battery pack 420 can be used as a temporary power source, and after being taken out of the first chamber 501, it can replenish electrical energy for other power tools in time. The counterweight assembly 910 placed in the second chamber 502 can be soil, sand, maintenance tools, or other spare parts, seeds, etc. used in normal farming, as long as the weight on both sides of the whole machine can be guaranteed to achieve a front-to-rear balance suitable for the operator's operation with the walking wheel 111 as the center. In other embodiments, the second battery pack 420 can also be placed in the second chamber 502, and the counterweight assembly 910 can be placed in the first chamber 501.

[0060] In this embodiment, the box 500 includes a lower box 510 and a cover 520, and the cover 520 is buckled on the opening of the lower box 510. Specifically, the first chamber 501 and the second chamber 502 may share a cover 520, or the first chamber 501 and the second chamber 502 may each be provided with a cover 520. In this embodiment, please refer to Fig.15 and Fig.16 , the first chamber 501 is provided with a first cover 521, and the second chamber 502 is provided with a second cover 522. The first cover 521 and the second cover 522 can be detachably buckled on the lower box 510, or can be hingedly connected to the lower box 510, as long as it can facilitate the opening and closing of the first chamber 501 and the second chamber 502. In this embodiment, the first cover 521 is hingedly connected to the first chamber 501, and the second cover 522 is snap-connected to the second chamber 502. By providing the cover 520, the aesthetics of the box 500 can be increased, and the items placed in the first chamber 501 and the second chamber 502 can be protected.

[0061] The utility model also provides a garden tool, which can be a tiller, a rotary tiller 1000 or a snow sweeper, etc. The garden tool includes: a frame 100, a walking mechanism 110, a working component, a power source component 400 and a counterweight 900. The walking mechanism 110 is installed on the frame 100, and is used to drive the frame 100 to walk; the walking mechanism 110 includes a driving part and a walking wheel 111, and the power source component 400 provides energy for the driving part, and the power source component 400 can be a battery, or an engine engine such as a diesel engine, a gasoline engine or an oil-electric hybrid; the driving part provides power for the rotation of the walking wheel 111, and the driving part can be a motor, a motor acceleration and reduction machine, a motor + gear rack transmission mechanism, or a motor + screw nut transmission mechanism, etc. Any transmission mechanism that can meet the requirements; the walking mechanism 110 controls the frame 100 to perform corresponding walking actions. The working component is installed on the frame 100 to perform corresponding garden operations. The counterweight 900 is arranged on the frame 100 to adjust the center of gravity of the garden tool; wherein, the counterweight 900 is adjustably mounted on the frame 100 through the adjustment structure 600. The counterweight 900 can be arranged at the front end, the middle or the rear end of the frame 100, and the specific position needs to be arranged according to the center of gravity of the whole garden tool. In this way, the center of gravity of the whole garden tool can be adjusted. When the garden tool is running under different operating conditions, the operator can easily control the balance of the whole machine on both sides of the running wheel 111 by adjusting the position of the counterweight 900 on the frame 100, thereby ensuring the normal operation of the garden tool.

[0062] The rotary tiller 1000 provided by the utility model is provided with a counterweight 900 on the frame 100, and the counterweight 900 is adjustably mounted on the frame 100 through the adjustment structure 600, so that the center of gravity position of the rotary tiller 1000 can be adjusted. By adjusting the position of the counterweight 900 on the frame 100, the center of gravity position of the rotary tiller 1000 can be matched with the three different working states of the rotary tiller 1000, namely, flat land cultivation, slope land cultivation and push transportation, so as to meet the operator's performance requirements for the rotary tiller 1000 to be labor-saving and easy to operate in the three different working states of flat land cultivation, slope land cultivation and push transportation. Therefore, the utility model effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. The above embodiments are only illustrative of the principle and effect of the utility model, and are not used to limit the utility model. Any person familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those having ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A rotary tiller, characterized in that: include: frame; A walking mechanism, the walking mechanism is mounted on the frame, and the walking mechanism includes walking wheels; A tillage blade assembly is mounted on the frame for rotary tillage operation; A power source assembly is installed on the frame to provide power for the operation of the tiller assembly and / or the travel of the frame; A counterweight, arranged on the frame, to adjust the center of gravity of the rotary tiller; Wherein, the counterweight is adjustably mounted on the frame by adjusting the structural position.

2. The rotary tiller according to claim 1, characterized in that: The adjustment structure adjusts the position of the counterweight along the traveling direction of the frame.

3. The rotary tiller according to claim 1, characterized in that: The frame includes a main frame body and a counterweight mounting frame, wherein the counterweight mounting frame is fixedly mounted on the main frame body; and the counterweight is adjustably mounted on the counterweight mounting frame through the adjustment structure.

4. The rotary tiller according to claim 1, characterized in that: The frame includes a main frame body and a counterweight mounting frame, the counterweight is fixedly mounted on the counterweight mounting frame, and the counterweight mounting frame is adjustably mounted on the main frame body through the adjustment structure.

5. The rotary tiller according to claim 3, characterized in that: The adjustment structure includes a first mounting portion and a second mounting portion, the first mounting portion is arranged on one of the main frame and the counterweight mounting frame, and the second mounting portion is arranged on the other of the main frame and the counterweight mounting frame. The first mounting portion is snap-connected to the second mounting portion and has multiple mounting fixing positions relative to the second mounting portion.

6. The rotary tiller according to claim 5, characterized in that: The first mounting portion includes a cylindrical hole, and the second mounting portion includes a cylindrical surface, and the cylindrical surface is clamped in the cylindrical hole.

7. The rotary tiller according to claim 5, characterized in that: The adjustment structure further includes a locking component, and the locking component is disposed on the first mounting portion and / or the second mounting portion to fix the second mounting portion at the corresponding mounting position.

8. The rotary tiller according to claim 7, characterized in that: The locking assembly includes a stopper and a plurality of adjustment holes. Along the traveling direction of the rotary tiller, the plurality of adjustment holes are arranged at intervals on the first mounting portion and / or the second mounting portion, and the stopper is clamped in the adjustment holes.

9. The rotary tiller according to claim 1, characterized in that: The counterweight comprises a box body and a counterweight assembly. The box body is installed on the frame in an adjustable manner, and the counterweight assembly is installed in the box body.

10. The rotary tiller according to claim 9, characterized in that: The power source assembly includes a first battery pack that provides electrical energy for the operation of the tiller assembly and / or the travel of the frame; the box includes a first chamber and a second chamber, and at least one of the first chamber and the second chamber is configured to accommodate a second battery pack and / or a counterweight assembly.

11. A garden tool, characterized in that: include: frame; A walking mechanism, the walking mechanism is mounted on the frame, and the walking mechanism includes walking wheels; A working assembly mounted on the frame for performing gardening operations; A power source assembly is installed on the frame to provide power for the operation of the working assembly and / or the travel of the frame; A counterweight, disposed on the frame, to adjust the center of gravity of the garden tool; Wherein, the counterweight is adjustably mounted on the frame by adjusting the structural position.

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