Height adjusting mechanism of mower and mower

Abstract

The utility model provides a hay mower height adjusting mechanism and hay mower, including frame and the cutterhead that is provided under the frame, also include: the transmission subassembly that is provided on one side of the frame, the transmission subassembly includes the pedal and at least one transmission rod that are rotatingly connected, the pedal is rotatingly connected with the frame, the transmission rod is connected with the pedal, and the transmission rod is connected with the transmission subassembly. The transmission rod rotates along with the pedal plate; the adjusting assembly is arranged on the frame and comprises a height adjusting plate, a gear disc and a connecting support, the gear disc is arranged on the side close to the positioning part, a plurality of gear faces at different heights are arranged at the upper end of the gear disc in a surrounding mode, and the positioning part is used for abutting against the gear faces so that the height of the cutter head can be changed and fixed. According to the utility model, the height of the cutter head can be adjusted by pedaling and rotating hands, so that the operation is convenient and labor-saving; and meanwhile, the cutter head can be lifted by pedaling, so that obstacles at a certain height can be conveniently avoided in the driving process.

Description

Technical Field

[0001] The utility model relates to the technical field of garden tools, in particular to a height adjustment mechanism of a lawn mower and a corresponding lawn mower. Background Art

[0002] As a garden tool, lawn mowers are widely used in the fields of mowing lawns and vegetation. Existing lawn mowers usually include handheld lawn mowers and riding lawn mowers. Among them, the mowing capacity, mowing efficiency, and battery life of riding lawn mowers can meet the needs of large lawns, and are gradually favored by the market. The blade of this type of lawn mower needs a height adjustment function, such as a blade lifting component of a lawn mower disclosed in announcement number CN216775508U. This blade height adjustment structure requires manual operation to achieve height changes, and when encountering obstacles of a certain height during driving, the blade cannot be lifted and can only be detoured, affecting the user experience; an electric height adjustment system for a riding lawn mower is disclosed in announcement number CN117016168A, but the electric adjustment method is not suitable for all usage environments, and a manual adjustment structure is still needed to meet market demand. Utility Model Content

[0003] The utility model aims to avoid the deficiencies in the prior art and provides a height adjustment mechanism for a lawn mower which is easy to operate and a corresponding lawn mower.

[0004] The utility model solves the technical problem by adopting the following technical solution: a height adjustment mechanism of a lawn mower, comprising a frame and a cutter disc arranged below the frame, and also comprising:

[0005] A transmission assembly is arranged on one side of the frame, the transmission assembly comprises a rotatably connected foot pedal and at least one transmission rod, the foot pedal is rotatably connected to the frame, and the transmission rod rotates with the foot pedal;

[0006] An adjustment component is arranged on the frame, and the adjustment component includes a height adjustment plate, a gear plate and a connecting bracket. The connecting bracket is arranged between the two height adjustment plates, and the connecting bracket moves with the height adjustment plates and is connected to the cutter disc. One of the height adjustment plates is connected to the transmission rod, and a positioning piece is protruding from one side of the other height adjustment plate. The gear plate is arranged on a side close to the positioning piece, and a plurality of gear surfaces at different heights are arranged around the upper end of the gear plate, and the positioning piece is used to abut against the gear surface to thereby realize the change and fixation of the cutter disc height.

[0007] In several embodiments, the height-adjusting plate is connected to the connecting bracket via a fixed shaft, and the fixed shaft is rotatably disposed on the vehicle frame.

[0008] In several embodiments, the connecting bracket includes a connecting plate, a connecting shaft, a transfer rod and an transfer plate, the connecting plate is connected to the height adjustment plate, the connecting shaft is arranged between the two connecting plates, the transfer rod is rotatably arranged between the connecting plate and the transfer plate, one end of the transfer plate is rotatably connected to the frame, and the other end is rotatably connected to the cutter disc.

[0009] In several embodiments, a support platform is provided at the lower end of the gear plate, and the support platform is connected to the vehicle frame.

[0010] In several embodiments, a rotating shaft body is disposed in the shift plate, and a knob is connected to the rotating shaft body. The rotating shaft body and the shift plate can be driven to rotate by rotating the knob.

[0011] And, a lawn mower comprising the height adjustment mechanism.

[0012] The utility model has the following beneficial effects:

[0013] The utility model can adjust the height of the cutter disc by pedaling and rotating the hand, which is convenient and labor-saving to operate; at the same time, the cutter disc can be lifted by pedaling, so as to avoid obstacles of a certain height during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0015] Figure 1 The overall structure of the height adjustment mechanism of the lawn mower in Embodiment 1 is schematically shown;

[0016] Figure 2 Schematically shows Figure 1 Partially enlarged structure;

[0017] Figure 3 Schematically shows Figure 1 Cross-sectional structure of the mid-range disc position. DETAILED DESCRIPTION

[0018] Below, the embodiments of the present invention are described in detail. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0020] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

[0021] Example 1

[0022] like Figure 1-Figure 3 As shown, the lawn mower in this embodiment is specifically a riding lawn mower, which is a kind of garden tool. It is conventionally composed of a frame 10 and a cutter disc 20 arranged under the frame 10. The frame 10 is also correspondingly configured with other conventional parts such as wheels and seats.

[0023] Specifically, the height adjustment mechanism of the lawn mower in this embodiment includes a transmission assembly arranged on one side of the frame 10 and an adjustment assembly arranged on the frame 10. The transmission assembly and the adjustment assembly cooperate with each other to achieve the height change and fixation of the cutter disc 20.

[0024] Among them, the transmission assembly includes a rotatably connected foot pedal 31 and at least one transmission rod 32, the foot pedal 31 is rotatably connected to the frame 10, and the transmission rod 32 rotates with the foot pedal 31. Here, the foot pedal 31 is directly rotatably connected to the frame 10, and the transmission rod 32 extends backward to the position of the blade disc 20.

[0025] In addition, the adjustment component includes a height adjusting plate 41, a gear plate 42 and a connecting bracket, wherein the connecting bracket is arranged between the two height adjusting plates 41, and the connecting bracket moves with the height adjusting plates 41 and is connected to the cutter disc 20. One of the height adjusting plates 41 is connected to the transmission rod 32, and a positioning member 411 is protruding from one side of the other height adjusting plate 41. The gear plate 42 is arranged on a side close to the positioning member 411, and a plurality of gear surfaces 421 at different heights are arranged around the upper end of the gear plate 42. The positioning member 411 is used to abut against the gear surface 421 to thereby achieve the change and fixation of the height of the cutter disc 20.

[0026] The height adjustment plate 41 is connected to the connecting bracket via a fixed shaft, and the fixed shaft is rotatably disposed on the vehicle frame 10 .

[0027] The connecting bracket includes a connecting plate 51, a connecting shaft 52, a transfer rod 53 and a transfer plate 54. The connecting plate 51 is connected to the height adjustment plate 41. The connecting shaft 52 is arranged between the two connecting plates 51. The transfer rod 53 is rotatably arranged between the connecting plate 51 and the transfer plate 54. One end of the transfer plate 54 is rotatably connected to the frame 10, and the other end is rotatably connected to the cutter head 20. The transfer rod 53 is rotatably connected to the transfer plate 54 near the middle.

[0028] In addition, a supporting platform 43 is provided at the lower end of the gear plate 42, and the gear plate 42 can rotate on the supporting platform 43. The supporting platform 43 is connected to the frame 10. A rotating shaft body 44 is provided in the gear plate 42, and a knob 45 is connected to the rotating shaft body 44. By rotating the knob 45, the rotating shaft body 44 and the gear plate 42 can be driven to rotate.

[0029] It should be noted that the above-mentioned rotational connections can all be conventionally achieved through shaft components.

[0030] When the height of the utility model needs to be adjusted, the passenger steps on the foot pedal 31, the transmission rod 32 rotates, and then drives the height adjustment plate 41 and the connecting bracket to rotate, thereby driving the cutter disc 20 to rise. At this time, the positioning member 411 in the height adjustment plate 41 also disengages from the gear plate 42 upward. At this time, the knob 45 can be turned to select the required gear surface 421, and then the foot pedal 31 is released. The positioning member 411 abuts against the gear surface 421 at this position and cannot be separated, thereby achieving the fixing of the height of the cutter disc 20 after adjustment.

[0031] The examples shown in the utility model, the embodiments and special forms of the representation have been shown and described in detail in the drawings and the foregoing description, and should also be considered to be illustrative rather than restrictive. The description of special features in one embodiment does not mean that those special features are necessarily limited to that embodiment. The features of one embodiment can be used in combination with the features of other embodiments, which can be understood by those of ordinary skill in the art, whether or not explicitly described in this way. Exemplary embodiments have been shown and described, and all changes and improvements fall into the spirit of the utility model and are expected to be protected.

Claims

1. A height adjustment mechanism for a lawn mower, comprising a frame and a cutter disc arranged below the frame, characterized in that: Also includes: A transmission assembly is arranged on one side of the frame, and the transmission assembly includes a rotatably connected foot pedal and at least one transmission rod, the foot pedal is rotatably connected to the frame, and the transmission rod rotates with the foot pedal; an adjustment assembly is arranged on the frame, and the adjustment assembly includes a height adjustment plate, a gear plate and a connecting bracket, the connecting bracket is arranged between two height adjustment plates, the connecting bracket moves with the height adjustment plates and is connected to the cutter disc, one of the height adjustment plates is connected to the transmission rod, and a positioning piece is protruded on one side of the other height adjustment plate, the gear plate is arranged on a side close to the positioning piece, and a plurality of gear surfaces at different heights are arranged around the upper end of the gear plate, and the positioning piece is used to abut against the gear surface to thereby achieve the change and fixation of the cutter disc height.

2. A height adjustment mechanism for a lawn mower according to claim 1, characterized in that: The height-adjusting plate is connected to the connecting bracket via a fixed shaft, and the fixed shaft is rotatably arranged on the vehicle frame.

3. A height adjustment mechanism for a lawn mower according to claim 2, characterized in that: The connecting bracket includes a connecting plate, a connecting shaft, an adapter rod and an adapter plate. The connecting plate is connected to the height adjustment plate. The connecting rod is arranged between the two connecting plates. The adapter rod is rotatably arranged between the connecting plate and the adapter plate. One end of the adapter plate is rotatably connected to the frame, and the other end is rotatably connected to the cutter disc.

4. A height adjustment mechanism for a lawn mower according to claim 1, characterized in that: A supporting platform is arranged at the lower end of the gear plate, and the supporting platform is connected to the vehicle frame.

5. A height adjustment mechanism for a lawn mower according to claim 4, characterized in that: A rotating shaft body is arranged inside the gear plate, and a knob is connected to the rotating shaft body. By turning the knob, the rotating shaft body and the gear plate can be driven to rotate.

6. A lawn mower, characterized in that: A height adjustment mechanism for a lawn mower comprising any one of claims 1 to 5.

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