Cutter head height adjusting structure and garden machine

Abstract

The utility model provides a cutterhead height adjusting structure, the lower end of the cutterhead height adjusting structure is connected with a cutterhead, the cutterhead height adjusting structure comprises a segmented connecting rod assembly extending along the axis, the segmented connecting rod assembly comprises a first connecting rod, a second connecting rod and an adjusting mechanism, the first connecting rod is provided with a connecting part I, and the second connecting rod is provided with a connecting part II; the adjusting mechanism is movably connected to the connecting part I and can move along the axis relative to the first connecting rod; the adjusting mechanism is used for adjusting the length of the segmented connecting rod assembly so as to change the relative height between the cutterhead and the ground, so that a spacious adjusting space is provided for operators, the adjusting operation steps are simplified, and the adjusting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to garden tool technical field, especially a kind of cutterhead height adjusting structure and garden machinery. BACKGROUND

[0002] Garden machinery is mechanical equipment for garden greening, garden construction, garden maintenance, usually by cutterhead, power mechanism, walking wheel, walking mechanism and control part etc. structure is composed, in the operation process, the relative height of each suspension point of cutterhead needs to be adjusted, so that the height difference of each point of cutting cutterhead and the relative ground height of base gear position meet the operation requirements.

[0003] At present, the structure of adjusting nut position on screw rod is used to adjust the height of cutting cutterhead in garden machinery such as lawn mower, after adjusting to specified height, multiple nuts are interlocked or glue is used to lock the position of nut. The adjusting nut of this structure is at both ends of screw rod, and the gap between cutterhead or frame is small, the adjusting space is insufficient, and the operation is cumbersome after locking and fixing, which affects the operation efficiency. SUMMARY

[0004] Therefore, the purpose of the utility model is to provide a cutterhead height adjusting structure, which makes the garden machinery more convenient and fast when adjusting the height of cutterhead.

[0005] The cutterhead height adjusting structure of the utility model is connected with cutterhead at lower end, and includes segmented connecting rod assembly extending along axis, segmented connecting rod assembly includes first connecting rod, second connecting rod and adjusting mechanism, connecting part I is arranged on first connecting rod, adjusting mechanism is movably connected to connecting part I, and can move along axis relative to first connecting rod; adjusting mechanism is used to adjust the length of segmented connecting rod assembly to change the relative height between cutterhead and ground.

[0006] Further, connecting part I is arranged on one side of first connecting rod, and connecting part II is arranged on the corresponding side of second connecting rod, adjusting mechanism is connected to connecting part II, and can move along axis relative to second connecting rod.

[0007] Further, adjusting mechanism is movably connected to connecting part II, can move along axis relative to second connecting rod, and connecting part I and connecting part II are respectively screw connected with adjusting mechanism.

[0008] Further, adjusting mechanism is screw structure arranged on the periphery of first connecting rod and the periphery of second connecting rod, the inner side of adjusting mechanism is provided with thread connection end I and thread connection end II with opposite screw directions, the outer side of connecting part I is provided with first connecting rod thread segment, the outer side of connecting part II is provided with second connecting rod thread segment, thread connection end I is connected with first connecting rod thread segment, and thread connection end II is connected with second connecting rod thread segment.

[0009] Further, the cutter head height adjusting structure further comprises an adjusting arm connected with the first connecting rod and a connecting mechanism connected with the second connecting rod, the adjusting arm is used for being connected with the cutter head, and the connecting mechanism is used for being connected with the height adjusting handle.

[0010] Further, the cutter head height adjusting structure further comprises a locking piece, and a hole I is arranged on the adjusting mechanism and a hole II is arranged on the first connecting rod or the second connecting rod, the locking piece is used for being inserted into the hole I and the hole II.

[0011] Further, the locking piece is a split pin, and the hole I is a strip-shaped through hole.

[0012] Further, the adjusting mechanism is fixedly arranged on the second connecting rod.

[0013] Further, one end of the first connecting rod is provided in the form of a hook.

[0014] In the second aspect, the utility model also provides a garden machinery, including cutter head and be used for adjusting cutter head height's height adjusting handle, still include above-mentioned cutter head height adjusting structure.

[0015] The cutter head height adjusting structure of the utility model provides a spacious adjusting space for an operator, simplifies the adjusting operation steps, improves the adjusting efficiency, and the garden machinery provided with the cutter head height adjusting structure also has the corresponding technical effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings and embodiments:

[0017] Fig. 1 is a structural schematic diagram of the utility model;

[0018] Fig. 2 is a sectional view of the sectional connecting rod assembly of the utility model;

[0019] Among them, the above-mentioned drawing contains following figure marks:

[0020] 1, cutter head; 2, axis; 3, first connecting rod; 4, second connecting rod; 5, adjusting mechanism; 51, threaded connection end I; 52, threaded connection end II; 6, split pin; 7, strip-shaped through hole; 8, adjusting arm; 9, connecting mechanism. DETAILED DESCRIPTION

[0021] Fig. 1 is a structural schematic diagram of the utility model, Fig. 2 is the structural schematic diagram of the groove piece as shown in Fig. 1-2: in an embodiment provided by the utility model, the cutter head 1 height adjusting structure lower end is connected with the cutter head 1, and the cutter head 1 height adjusting structure includes the segmented connecting rod assembly extending along the axis 2, the segmented connecting rod assembly includes the first connecting rod 3, the second connecting rod 4 and the adjusting mechanism 5, the first connecting rod 3 is provided with the connecting portion I, the adjusting mechanism 5 is movably connected to the connecting portion I, and the adjusting mechanism 5 is used for adjusting the length of the segmented connecting rod assembly to change the relative height between the cutter head 1 and the ground along the axis 2 relative to the first connecting rod 3.

[0022] The integral long connecting rod adopted by the cutter head 1 height adjusting structure in the prior art is replaced by the segmented connecting rod design, and the operator can directly adjust the height of the cutter head 1 by changing the overall length of the segmented connecting rod assembly, and the segmented design makes the adjusting point not need to be arranged on both sides of the connecting rod assembly as a whole, avoids that the adjusting point is shielded by the covering piece, and does not need to remove the covering piece when the height of the cutter head 1 is adjusted, so that the operation steps are simplified, and more spacious space is provided for the adjustment of the operator.

[0023] The segmented connecting rod assembly includes at least two connecting rods, but is not limited to two, and more segments can be arranged according to the adjustment requirement and layout condition. The connecting portion I is arranged on one side of the first connecting rod 3, and the connecting portion II is arranged on the corresponding side of the second connecting rod 4, and the adjusting mechanism 5 is connected to the connecting portion II and can move along the axis 2 relative to the second connecting rod 4. The above-mentioned one side and the corresponding side can be understood as the two sides of the two connecting rods closest in the direction of the axis 2, such as the corresponding end of the upper side to the lower side.

[0024] In an embodiment, the segmented connecting rod assembly has only two connecting rods extending along the axis 2, the first connecting rod 3 serves as the lower segment of the segmented connecting rod assembly, at least a part of the upper side of the first connecting rod 3 is provided with the connecting portion I, and the adjusting mechanism 5 is movably connected to the connecting portion I and can move along the axis 2 relative to the first connecting rod 3. By adjusting the adjusting mechanism 5, the overall length of the first connecting rod 3 and the adjusting mechanism 5 changes, thereby affecting the height of the cutter head 1. The second connecting rod 4 serves as the upper segment of the segmented connecting rod assembly, and at least a part of the lower side of the second connecting rod 4 can be fixedly provided with the adjusting mechanism 5, which is integrally formed or provided with the connecting portion II on the upper side of the second connecting rod 4 for fixed connection.

[0025] Preferably, the adjusting mechanism 5 is movably connected to the connecting portion II and can move along the axis 2 relative to the second connecting rod 4. By the double-side adjusting mode, the adjusting stroke is longer, and the adjusting efficiency is higher.

[0026] In an embodiment, the connecting part I and the connecting part II are respectively screwed with the adjusting mechanism 5, and the weighing effect is better and the service life of the components is longer.

[0027] Specifically, the adjusting mechanism 5 is a stud structure arranged at the periphery of the first connecting rod 3 and the periphery of the second connecting rod 4, the inner side of the adjusting mechanism 5 is provided with a threaded connection end I 51 and a threaded connection end II 52 with opposite screw directions, the outer side of the connecting part I is provided with a threaded segment of the first connecting rod 3, the outer side of the connecting part II is provided with a threaded segment of the second connecting rod 4, the threaded connection end I 51 is connected with the threaded segment of the first connecting rod 3, the threaded connection end II 52 is connected with the threaded segment of the second connecting rod 4, the screw directions of the threaded segment of the first connecting rod 3 and the threaded connection end I 51 are both left-handed, and the screw directions of the threaded segment of the second connecting rod 4 and the threaded connection end II 52 are both right-handed. By rotating the adjusting mechanism 5, the first connecting rod 3 and the second connecting rod 4 are simultaneously away from or close to the adjusting mechanism 5 along the axis 2.

[0028] Undoubtedly, the purpose of the utility model can also be achieved by using the design of the telescopic clamping part cooperating with the clamping groove for active adjustment.

[0029] Further, the height adjusting structure of the cutter head 1 further comprises an adjusting arm 8 connected with the first connecting rod 3 and a connecting mechanism 9 connected with the second connecting rod 4, the adjusting arm 8 is used for connecting with the cutter head 1, and the connecting mechanism 9 is used for connecting with the height adjusting handle.

[0030] Further, the height adjusting structure of the cutter head 1 further comprises a locking piece, and a hole I is arranged on the adjusting mechanism 5 and a hole II is arranged on the first connecting rod 3 or the second connecting rod 4, and the locking piece can be inserted into the hole I and the hole II.

[0031] In an embodiment, the locking piece is in the form of a bolt matched with the thread arranged on the inner side of the hole II; more conveniently, the locking piece is a split pin 6, the hole I is a strip-shaped through hole 7, the split pin 6 can be inserted and passed through the strip-shaped through hole 7 and the hole II so that the adjusting mechanism 5 cannot be rotated any more, thereby locking the height of the cutter head 1, and in another embodiment, the hole I is one of a plurality of vertically arranged through holes on the adjusting mechanism 5.

[0032] In the specific operation, the cutter head 1 height can be first adjusted to the desired position by rotating the adjusting mechanism 5, and then the adjusting mechanism 5 is slightly rotated to make the hole I and the hole II coincide in the direction perpendicular to the axis 2, so that the locking member can be inserted into both. It should be noted that the additional locking mechanism is not necessary for the utility model, for example, the locking part can be directly provided on the telescopic clamping part; when the threaded connection is selected, the shaking of the machine will not cause the relative rotation between the adjusting mechanism 5 and the connecting rod, so as to not affect the cutter head 1 height.

[0033] In an embodiment, the second connecting rod 4 is no longer connected with the adjusting mechanism 5, but is formed in one piece, which has fewer components and is more convenient to install.

[0034] Further, one end of the first connecting rod 3 is provided in a hook shape, which can be used to connect with the connecting part on the cutter head 1.

[0035] In the second aspect, the utility model also provides a garden machinery, which comprises a cutter head 1 and a height adjusting handle for adjusting the cutter head 1 height, and further comprises the cutter head 1 height adjusting structure, and the garden machinery can be a mower, a harvester or the like.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the utility model technical solutions, and all should be covered in the claim range of the utility model.

Claims

1. A cutter height adjusting structure, the lower end of the cutter height adjusting structure being connected with a cutter, characterized in that: the cutter height adjusting structure comprises a segmented connecting rod assembly extending along an axis; the segmented connecting rod assembly comprises a first connecting rod, a second connecting rod and an adjusting mechanism; a connecting portion I is arranged on the first connecting rod, and the adjusting mechanism is movably connected to the connecting portion I and can move along the axis relative to the first connecting rod; the adjusting mechanism is used to adjust the length of the segmented connecting rod assembly to change the relative height between the cutter and the ground. The connecting portion I is arranged on one side of the first connecting rod, and a connecting portion II is arranged on the corresponding side of the second connecting rod, and the adjusting mechanism is connected to the connecting portion II. The adjusting mechanism is movably connected to the connecting portion II and can move along the axis relative to the second connecting rod, and the connecting portion I and the connecting portion II are respectively threadedly connected with the adjusting mechanism. The adjusting mechanism is a stud structure arranged on the periphery of the first connecting rod and the periphery of the second connecting rod, the inner side of the adjusting mechanism is provided with a threaded connection end I and a threaded connection end II with opposite screw directions, the outer side of the connecting portion I is provided with a first connecting rod threaded segment, the outer side of the connecting portion II is provided with a second connecting rod threaded segment, the threaded connection end I is connected with the first connecting rod threaded segment, and the threaded connection end II is connected with the second connecting rod threaded segment. The cutter height adjusting structure further comprises a height adjusting arm connected with the first connecting rod and a connecting mechanism connected with the second connecting rod, the height adjusting arm is used to be connected with the cutter, and the connecting mechanism is used to be connected with a height adjusting handle.

2. The cutterhead height adjustment structure of claim 1, wherein: Further comprising a locking member, and a hole I is arranged on the adjusting mechanism and a hole II is arranged on the first connecting rod or the second connecting rod, the locking member can be inserted into the hole I and the hole II.

3. The cutterhead height adjustment structure of claim 2, wherein: The locking member is a split pin, and the hole I is a strip-shaped through hole.

4. The cutterhead height adjustment structure of claim 3, wherein: The adjusting mechanism is fixedly arranged on the second connecting rod.

5. The cutterhead height adjustment structure of claim 1, wherein: One end of the first connecting rod is arranged in a hook shape.

6. The cutterhead height adjustment structure of claim 1, wherein: Further comprising the cutter height adjusting structure according to any one of claims 1-9.

7. The cutterhead height adjustment structure of claim 6, wherein: ​ 8. The cutterhead height adjustment structure of claim 1, wherein: ​ 9. The cutterhead height adjustment structure of claim 1, wherein: ​ 10. A garden machine comprising a cutter head and a height adjustment handle for adjusting the height of the cutter head, characterized in that: ​

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