Weeding device suitable for uneven ground

Abstract

The utility model discloses a weeding device suitable for uneven ground, which comprises a mowing head, the mowing head comprises a reference mowing head and an auxiliary mowing head, and the reference mowing head is connected with the auxiliary mowing head through a mowing head connecting mechanism; the mowing head connecting mechanism comprises a first connecting piece, a second connecting piece and an elastic reset piece. The first connecting piece is movably connected with the second connecting piece; the elastic reset piece is connected with the first connecting piece and the second connecting piece at the same time, and the elastic reset piece keeps the auxiliary mowing head lower than the reference mowing head when not subjected to external force. The auxiliary mowing head can move up and down beside the reference mowing head; the elastic reset piece is arranged between the reference mowing head and the auxiliary mowing head, the auxiliary mowing head is kept lower than the reference mowing head through the elastic reset piece, and weeds can be fully cut through self-adaptive adjustment of the elastic reset piece when the mower passes through an uneven road surface.

Description

Technical Field

[0001] The utility model belongs to the technical field of weeders, and particularly relates to a weeding device suitable for uneven ground. Background Art

[0002] Existing lawn mowers (or lawn cutters) usually have one or more parallel mowing heads, which are in the same horizontal plane and are only suitable for mowing flat ground, such as some home gardens and lawns. When the road surface is rough, the existing mowing equipment cannot effectively cut the weeds around the low-lying areas and raised areas.

[0003] In particular, in order to increase stability, the existing lawn mowers usually design the bottom of the lawn mower to be an integral planar structure, which makes it more difficult to apply to uneven ground. Utility Model Content

[0004] As mentioned above, in order to solve the problem that the lawn mower cannot be used on uneven roads, the utility model discloses a weeding device suitable for uneven ground, including a lawn mower, wherein a mowing head is arranged at any position close to the ground of the lawn mower, and the mowing head includes: a reference mowing head and an auxiliary mowing head, wherein the reference mowing head and the auxiliary mowing head are connected via a mowing head connection mechanism;

[0005] The reference mowing head comprises a reference mowing head body fixedly connected to the mower, a side wall of the reference mowing head body facing the ground is provided with a plurality of first mowing knives, and any other side wall is provided with a mowing head connection mechanism;

[0006] The auxiliary mowing head comprises an auxiliary mowing head body, a side wall of the auxiliary mowing head body facing the ground is provided with a plurality of second mowing blades, and any other side wall is connected to the mowing head connection mechanism;

[0007] The mowing head connection mechanism comprises a first connection member fixed to the reference mowing head body, a second connection member fixed to the auxiliary mowing head body, and an elastic reset member;

[0008] The first connecting member and the second connecting member are movably connected;

[0009] The elastic reset member is connected to the first connecting member and the second connecting member at the same time, and the elastic reset member keeps the auxiliary mowing head lower than the reference mowing head when no external force is applied.

[0010] In some exemplary embodiments, the first connecting member is a column extending from the side wall of the reference mowing head body, and the second connecting member is a ring extending from the side wall of the auxiliary mowing head body, and the ring is rotatably connected to the column;

[0011] The reference mowing head body is connected to the rear bottom of the mower, the first mowing blade faces the front end of the mower, the auxiliary mowing head bodies are connected to both sides of the reference mowing head body, and the auxiliary mowing head bodies face the front end of the mower;

[0012] When no external force is applied, the cutting position of the second mowing blade is lower than the cutting position of the first mowing blade.

[0013] In some exemplary embodiments, the elastic return member is a torsion spring, which is wound around the column, and has two ends respectively fixed to the first connecting member and the second connecting member.

[0014] In some exemplary embodiments, the reference mowing head body further has a plurality of slots, and the handle end of the first mowing blade is disposed in the slots;

[0015] The first mowing blade is connected to the slot body through an elastic member, and a space for accommodating the elastic member is provided between the handle end and the bottom of the slot body.

[0016] In some exemplary embodiments, the lawn mower includes a driving wheel and a driven wheel, the driving wheel is rotationally connected to the lawn mower, and the driven wheel is connected via a driving wheel connection mechanism;

[0017] The driven wheel is arranged on both sides of the driving wheel, and the rolling direction of the driven wheel is consistent with that of the driving wheel.

[0018] In some exemplary embodiments, the driving wheel connection mechanism includes a fixed portion fixed to the driving wheel, and a rotating portion fixed to the driven wheel;

[0019] The rotating part is rotatably connected to the fixed part, and the axis of rotation of the rotating part relative to the fixed part is parallel to the running direction of the weeder;

[0020] A driven wheel elastic reset member is provided between the fixed portion and the rotating portion, and the driven wheel elastic reset member keeps the driven wheel lower than the driving wheel when no external force is applied.

[0021] In some exemplary embodiments, when the driven wheel connection mechanism rotates until the driven wheel is flush with the driving wheel, the driven wheel is parallel to the rotation plane of the driving wheel.

[0022] In some exemplary embodiments, the gravity of the lawn mower exceeds the elastic force of the elastic return member.

[0023] In some exemplary embodiments, the gravity of the lawn mower exceeds the elastic force of the elastic return member of the moving wheel.

[0024] The beneficial effect of the utility model lies in that, by providing the auxiliary mowing head, the auxiliary mowing head and the reference mowing head are connected in a movable manner, so that the auxiliary mowing head can move up and down beside the reference mowing head; and the elastic reset member is provided between the reference mowing head and the auxiliary mowing head, and the auxiliary mowing head is kept lower than the reference mowing head by the elastic reset member, so that the mowing head is always in contact with the ground, and even if it passes through an uneven road surface, the weeds can be fully cut through the adaptive adjustment of the elastic reset member.

[0025] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A structural diagram of a weeding device according to an embodiment of the utility model is shown;

[0028] Figure 2 A partial structural diagram of a weeding device according to an embodiment of the utility model is shown;

[0029] Figure 3 A structural diagram of an auxiliary weeding head according to an embodiment of the utility model is shown;

[0030] Figure 4 The figure shows a structural diagram of a weeding device according to an embodiment of the utility model.

[0031] In the attached figure:

[0032] 1-lawn mower, 2-mowing head, 3-basic mowing head, 4-auxiliary mowing head, 5-mowing head connecting mechanism, 6-driving wheel, 7-driven wheel, 8-driven wheel connecting mechanism;

[0033] 201-first connecting member, 202-second connecting member, 203-elastic reset member;

[0034] 301-reference mowing head body, 302-first mowing blade, 303-column, 304-end of column, 305-handle end, 306-groove, 307-elastic member;

[0035] 401 - auxiliary mowing head body, 402 - second mowing blade, 403 - ring body;

[0036] 601-fixed part, 602-rotating part. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] First embodiment

[0039] This embodiment discloses a weeding device suitable for uneven ground, aiming to solve the problem that a traditional weeder 1 cannot adapt to different terrains when operating on complex terrain. The weeder 1 includes a weeding head 2 provided at any ground-contact position.

[0040] In a specific example, refer to Figure 1 It is understood that the mowing head 2 includes a reference mowing head 3 and an auxiliary mowing head 4 , and the reference mowing head 3 and the auxiliary mowing head 4 are connected via a mowing head connecting mechanism 5 .

[0041] The reference mowing head 3 includes a reference mowing head body 301 fixedly connected to the mowing machine 1, and a plurality of first mowing blades 302 are provided on the side wall of the reference mowing head body 301 facing the ground, and a mowing head connection mechanism 5 is provided on any other side wall. In this example, the first mowing blade 302 is a sharp blade, or a plurality of cutting ropes are provided, and cutting is performed selectively. The above example is only a possible way, and does not limit the protection scope of the present invention.

[0042] The auxiliary mowing head 4 includes an auxiliary mowing head body 401, a plurality of second mowing blades 402 are arranged on the side wall of the auxiliary mowing head body 401 facing the ground, and any other side wall is connected to the mowing head connection mechanism 5. The movable connection between the first connection member 201 and the second connection member 202 allows the auxiliary mowing head 4 to adjust its position relative to the reference mowing head 3 within a certain range. This design enables the entire mowing system to be dynamically adjusted according to the ground conditions to ensure the optimization of the mowing effect.

[0043] The mowing head connection mechanism 5 includes a first connection member 201 fixed to the reference mowing head body 301, a second connection member 202 fixed to the auxiliary mowing head body 401, and an elastic reset member 203. The first connection member 201 and the second connection member 202 are movably connected. The elastic reset member 203 simultaneously connects the first connection member 201 and the second connection member 202, and the elastic reset member 203 keeps the auxiliary mowing head 4 lower than the reference mowing head 3 when no external force is applied.

[0044] The elastic reset member 203 connects the first and second connection members 202, and maintains the auxiliary mowing head 4 at a lower position relative to the reference mowing head 3 through its own elastic action. When the auxiliary mowing head 4 encounters uneven obstacles on the ground, the elastic reset member 203 can adjust its position in time to ensure that the mowing blade is close to the ground, achieving efficient and uniform cutting effect. This mechanism is particularly critical in weeding operations on complex terrains, as it can ensure that the auxiliary mowing head 4 can maintain a good ground-close cutting effect even on extremely uneven roads, greatly improving the applicability and working efficiency of the weeding device.

[0045] Second embodiment

[0046] Based on the foregoing embodiments, the structure in one example can refer to Figure 2 It is understood that the first connecting member 201 is a column 303 extending from the side wall of the reference mowing head body 301, and the second connecting member 202 is a ring 403 extending from the side wall of the auxiliary mowing head body 401, and the ring 403 is sleeved on the column 303. The diameter of the column end 304 is relatively large, and the ring 403 is clamped therein, and the ring 403 can rotate relative to the column 303. The cooperation between the column 303 and the ring 403 enables the auxiliary mowing head 4 to rotate freely around the reference mowing head 3 when necessary, and the ring 403 is firmly clamped on the column 303.

[0047] The reference mowing head body 301 is connected to the bottom of the rear end of the mower 1, the first mowing blade 302 faces the front end of the mower 1, and the auxiliary mowing head body 401 is connected to both sides of the reference mowing head body 301, and the auxiliary mowing head body 401 faces the front end of the mower 1. As mentioned above, since the first mowing blade 302 faces the running direction, during the forward movement of the mower 1, the reference mowing head 3 can first cut the grass on the ground to achieve the weeding operation.

[0048] In combination with the above-mentioned embodiments, it can be known that the elastic reset member 203 maintains a lower position of the auxiliary mowing head 4 relative to the reference mowing head 3. When encountering uneven ground or other obstacles, the auxiliary mowing head 4 can automatically adjust its position through the action of the elastic reset member 203 to maintain a close fit with the ground.

[0049] By keeping the second mowing blade 402 lower than the cutting position of the first mowing blade 302 when no external force is applied, it is ensured that the basic mowing head 3 is at a higher position, and the auxiliary mowing head 4 can also fully cut and remove grass when it is at a low position on the ground. Therefore, when no external force is applied, the cutting position of the second mowing blade 402 is lower than the cutting position of the first mowing blade 302.

[0050] Third embodiment

[0051] Based on the above embodiments, in one example, the elastic reset member 203 is a torsion spring, which is wound around the column 303 mentioned in the first embodiment, and its two ends are respectively fixed to the first connecting member 201 (the column 303 extending from the side wall of the reference mowing head body 301) and the second connecting member 202 (the ring body 403 extending from the side wall of the auxiliary mowing head body 401). The use of such a torsion spring not only provides sufficient elastic force for the auxiliary mowing head 4 to keep close to the ground, but also allows the auxiliary mowing head 4 to automatically adjust its height when encountering obstacles to avoid damage. The elastic reset member 203 can be of different structures, such as compression springs, rubber elastomers, etc., to meet the needs of different strengths and flexibility.

[0052] Fourth embodiment

[0053] Based on the above embodiments, in one example the structure can refer to Figure 3 It is understood that the reference mowing head body 301 also has a plurality of slots 306, and the handle end 305 of the first mowing blade 302 is arranged in the slot 306. The slot 306 is a rectangular slot 306, and the mowing blade has a matching rectangular handle end 305 as shown in the figure, and the handle end 305 is accommodated in the slot 306.

[0054] In this example, the first mowing blade 302 is connected to the slot body 306 through an elastic member 307, and there is a space between the handle end 305 and the bottom of the slot body 306 to accommodate the elastic member 307. Each slot body 306 also has a reserved space inside for accommodating the elastic member 307. This design allows each first mowing blade 302 to be connected to the bottom of the slot body 306 through the elastic member 307, thereby allowing each mowing blade to intelligently adjust its height according to the unevenness of the ground, ensuring that the mowing blade can fully and evenly perform mowing operations. For example, on a lawn full of small stones and mounds, the reference mowing head 3 and the auxiliary mowing head 4 can independently adjust the height of each mowing blade through their respective elastic members 307 to adapt to the specific conditions of the ground, thereby achieving an efficient and uniform mowing effect, minimizing the uncut grass and possible equipment damage caused by uneven ground. Similarly, the auxiliary mowing head 4 can also be provided with the elastic member 307 in this way, and the principle is the same and will not be repeated.

[0055] Fifth embodiment

[0056] Based on the foregoing embodiment, in one example, reference Figure 4 In the structure shown, the weeder 1 includes a driving wheel 6 and a driven wheel 7. The driving wheel 6 is rotatably connected to the weeder 1, and the driven wheel 7 is connected via a driven wheel connection mechanism 8. The driven wheel 7 is arranged on both sides of the driving wheel 6, and the rolling direction of the driven wheel 7 is consistent with that of the driving wheel 6.

[0057] The driving wheel connection mechanism 8 includes a fixed portion 601 fixed to the driving wheel 6 and a rotating portion 602 fixed to the driven wheel 7. The rotating portion 602 is rotatably connected to the fixed portion 601, and the axis of rotation of the rotating portion 602 relative to the fixed portion 601 is parallel to the running direction of the weeder 1.

[0058] A driving wheel elastic reset member is provided between the fixed portion 601 and the rotating portion 602, and the driving wheel elastic reset member keeps the driven wheel 7 lower than the driving wheel 6 when no external force is applied. Similar to the auxiliary mowing head 4 in the aforementioned embodiment, the driven wheel 7 can adapt to different terrains. Compared with the existing lawn mower 1 chassis which is an integral planar structure, the three rollers in this embodiment can adaptively adjust the height of each roller, thereby keeping the lawn mower 1 basically horizontal. When the lawn mower 1 is basically horizontal, the auxiliary mowing head 4 at the rear can effectively fit the ground.

[0059] In this example, when the driven wheel connection mechanism 8 rotates until the driven wheel 7 is flush with the driving wheel 6, the rotation planes of the driven wheel 7 and the driving wheel 6 are parallel. When the driving wheel 6 and the driven wheel 7 are not flush, there is a certain angle between them.

[0060] Based on the above content, it can be known that in order to achieve the mowing head 2 to keep in contact with the ground under pressure, the gravity of the mower 1 in any of the above embodiments exceeds the elastic force of the elastic reset member 203. Similarly, the gravity of the mower 1 in any of the above embodiments exceeds the elastic force of the moving wheel elastic reset member.

[0061] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A weeding device suitable for uneven ground, comprising a weeder (1), wherein a mowing head (2) is provided at any position close to the ground of the weeder (1), and wherein: The mowing head (2) comprises: a reference mowing head (3) and an auxiliary mowing head (4), wherein the reference mowing head (3) and the auxiliary mowing head (4) are connected via a mowing head connection mechanism (5); The reference mowing head (3) comprises a reference mowing head body (301) fixedly connected to the mower (1); a plurality of first mowing blades (302) are provided on the side wall of the reference mowing head body (301) facing the ground, and a mowing head connection mechanism (5) is provided on any other side wall; The auxiliary mowing head (4) comprises an auxiliary mowing head body (401), a side wall of the auxiliary mowing head body (401) facing the ground is provided with a plurality of second mowing knives (402), and any other side walls are connected to the mowing head connection mechanism (5); The mowing head connection mechanism (5) comprises a first connection member (201) fixed to the reference mowing head body (301), a second connection member (202) fixed to the auxiliary mowing head body (401), and an elastic reset member (203); The first connecting member (201) and the second connecting member (202) are movably connected; The elastic reset member (203) is connected to the first connection member (201) and the second connection member (202) at the same time. When the elastic reset member (203) is not subjected to external force, the height of the lower end of the auxiliary mowing head (4) is lower than the height of the lower end of the reference mowing head (3).

2. The weeding device suitable for uneven ground according to claim 1, characterized in that: The first connecting member (201) is a column (303) extending from the side wall of the reference mowing head body (301), and the second connecting member (202) is a ring (403) extending from the side wall of the auxiliary mowing head body (401), and the ring (403) is rotatably connected to the column (303); The reference mowing head body (301) is connected to the bottom of the rear end of the mower (1), the first mowing blade (302) faces the front end of the mower (1), the auxiliary mowing head body (401) is connected to both sides of the reference mowing head body (301), and the auxiliary mowing head body (401) faces the front end of the mower (1); When no external force is applied, the cutting position of the second mowing blade (402) is lower than the cutting position of the first mowing blade (302).

3. The weeding device suitable for uneven ground according to claim 2, characterized in that: The elastic reset member (203) is a torsion spring, which is wound around the column (303) and has two ends respectively fixed to the first connecting member (201) and the second connecting member (202).

4. The weeding device suitable for uneven ground according to claim 1 or 2, characterized in that: The reference mowing head body (301) also has a plurality of slots (306), and the handle end (305) of the first mowing blade (302) is arranged in the slots (306); The first mowing blade (302) is connected to the groove body (306) via an elastic member (307), and a space for accommodating the elastic member (307) is provided between the handle end (305) and the bottom of the groove body (306).

5. The weeding device suitable for uneven ground according to claim 1 or 2, characterized in that: The weeder (1) comprises a driving wheel (6) and a driven wheel (7), wherein the driving wheel (6) is rotatably connected to the weeder (1), and the driven wheel (7) is connected via a driving wheel connecting mechanism (8); The driven wheel (7) is arranged on both sides of the driving wheel (6), and the rolling direction of the driven wheel (7) is consistent with that of the driving wheel (6).

6. The weeding device suitable for uneven ground according to claim 5, characterized in that: The driving wheel connection mechanism (8) comprises a fixing portion (601) fixed to the driving wheel (6), and a rotating portion (602) fixed to the driven wheel (7); The rotating part (602) is rotatably connected to the fixed part (601), and the axis of rotation of the rotating part (602) relative to the fixed part (601) is parallel to the running direction of the weeder (1); A driven wheel elastic reset member (203) is provided between the fixed portion (601) and the rotating portion (602), and the driven wheel elastic reset member (203) keeps the driven wheel (7) lower than the driving wheel (6) when no external force is applied.

7. The weeding device suitable for uneven ground according to claim 5, characterized in that: When the driven wheel connecting mechanism (8) rotates until the driven wheel (7) is flush with the driving wheel (6), the rotation planes of the driven wheel (7) and the driving wheel (6) are parallel.

8. The weeding device suitable for uneven ground according to claim 1 or 2, characterized in that: The gravity of the weeder (1) exceeds the elastic force of the elastic reset member (203).

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